[libpng15] Imported from libpng-1.5.14beta08.tar

[libpng15] Check validity of "num_unknowns" parameter
of png_set_unknown_chunks().
2025-07-10 18:04:09 +02:00 · 2013-01-10 12:31:21 -06:00 · 2013-01-10 09:24:03 -06:00 · 2013-01-06 20:12:39 -06:00 · 2013-01-06 17:57:40 -06:00 · 2013-01-06 12:38:39 -06:00
98 changed files with 5211 additions and 9961 deletions
--- a/150
+++ b/150
@@ -1,5 +1,5 @@

-Libpng 1.5.7beta05 - November 22, 2011
+Libpng 1.5.14beta08 - January 10, 2013

 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -9,107 +9,83 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script

-   1.5.7beta05.tar.xz (LZMA-compressed, recommended)
-   1.5.7beta05.tar.gz
-   1.5.7beta05.tar.bz2
+   1.5.14beta08.tar.xz (LZMA-compressed, recommended)
+   1.5.14beta08.tar.gz
+   1.5.14beta08.tar.bz2

 Source files with CRLF line endings (for Windows), without the
 "configure" script

-   lp157b05.7z  (LZMA-compressed, recommended)
-   lp157b05.zip
+   lp1514b08.7z  (LZMA-compressed, recommended)
+   lp1514b08.zip

 Other information:

-   1.5.7beta05-README.txt
-   1.5.7beta05-LICENSE.txt
+   1.5.14beta08-README.txt
+   1.5.14beta08-LICENSE.txt

-Changes since the last public release (1.5.6):
+Changes since the last public release (1.5.13):

-Version 1.5.7beta01 [November 4, 2011]
-  Added support for ARM processor (Mans Rullgard)
-  Fixed bug in pngvalid on early allocation failure; fixed type cast in
-    pngmem.c; pngvalid would attempt to call png_error() if the allocation
-    of a png_struct or png_info failed. This would probably have led to a
-    crash.  The pngmem.c implementation of png_malloc() included a cast
-    to png_size_t which would fail on large allocations on 16-bit systems.
-  Fix for the preprocessor of the Intel C compiler. The preprocessor
-    splits adjacent @ signs with a space; this changes the concatentation
-    token from @-@-@ to PNG_JOIN; that should work with all compiler
-    preprocessors.
-  Paeth filter speed improvements from work by Siarhei Siamashka. This
-    changes the 'Paeth' reconstruction function to improve the GCC code
-    generation on x86. The changes are only part of the suggested ones;
-    just the changes that definitely improve speed and remain simple.
-    The changes also slightly increase the clarity of the code.
+Version 1.5.14beta01 [October 24, 2012]
+  Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7
+  Warn about the incorrect runtime library setting for VS2010 debug DLL builds.
+  Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in
+    pngrtran.c (Domani Hannes).

-Version 1.5.7beta02 [November 11, 2011]
-  Check compression_type parameter in png_get_iCCP and remove spurious
-    casts. The compression_type parameter is always assigned to, so must
-    be non-NULL. The cast of the profile length potentially truncated the
-    value unnecessarily on a 16-bit int system, so the cast of the (byte)
-    compression type to (int) is specified by ANSI-C anyway.
-  Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left
-    the sBIT fields in the test pixel as 0, which resulted in a floating
-    point division by zero which was irrelevant but causes systems where
-    FP exceptions cause a crash. Added code to pngvalid to turn on FP
-    exceptions if the appropriate glibc support is there to ensure this is
-    tested in the future.
-  Updated scripts/pnglibconf.mak and scripts/makefile.std to handle the
-    new PNG_JOIN macro.
-  Added versioning to pnglibconf.h comments.
-  Simplified read/write API initial version; basic read/write tested on
-    a variety of images, limited documentation (in the header file.)
-  Installed more accurate linear to sRGB conversion tables. The slightly
-    modified tables reduce the number of 16-bit values that
-    convert to an off-by-one 8-bit value.  The "makesRGB.c" code that was used
-    to generate the tables is now in a contrib/sRGBtables sub-directory.
+Version 1.5.14beta02 [omitted]

-Version 1.5.7beta03 [November 17, 2011]
-  Removed PNG_CONST from the sRGB table declarations in pngpriv.h and png.c
-  Added run-time detection of NEON support.
-  Added contrib/libtests; includes simplified API test and timing test and
-    a color conversion utility for rapid checking of failed 'pngstest' results.
-  Multiple transform bug fixes plus a work-round for double gamma correction.
-    libpng does not support more than one transform that requires linear data
-    at once - if this is tried typically the results is double gamma
-    correction. Since the simplified APIs can need rgb to gray combined with
-    a compose operation it is necessary to do one of these outside the main
-    libpng transform code. This check-in also contains fixes to various bugs
-    in the simplified APIs themselves and to some bugs in compose and rgb to
-    gray (on palette) itself.
-  Fixes for C++ compilation using g++ When libpng source is compiled
-    using g++. The compiler imposes C++ rules on the C source; thus it
-    is desireable to make the source work with either C or C++ rules
-    without throwing away useful error information.  This change adds
-    png_voidcast to allow C semantic (void*) cases or the corresponding
-    C++ static_cast operation, as appropriate.
-  Added --noexecstack to assembler file compilation. GCC does not set
-    this on assembler compilation, even though it does on C compilation.
-    This creates security issues if assembler code is enabled; the
-    work-around is to set it by default in the flags for $(CCAS)
-  Work around compilers that don't support declaration of const data. Some
-    compilers fault 'extern const' data declarations (because the data is
-    not initialized); this turns on const-ness only for compilers where
-    this is known to work.
+Version 1.5.14beta03 [December 15, 2012]
+  Added missing "-" in front of DNO_GZIP in contrib/pngminim/*/makefile.
+  Check for png_ptr==NULL earlier in png_zalloc().
+  Ignore, with a warning, out-of-range value of num_trans in png_set_tRNS().
+  Rearranged building of ARM NEON optimizations. The ARM specific code is
+    split out entirely to the arm subdirectory and changes to configure.ac and
+    Makefile.am to add new stuff are reduced.  Now material code changes,
+    although for build test purposes, --enable-arm-neon now builds on non-ARM
+    systems.
+  Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.12.5.
+  Fixed cases of unquoted DESTDIR in Makefile.am
+  Fixed a minor bug in types to malloc and major bug in handling compressed
+    iTXt. Compressed iTXt could not be handled.

-Version 1.5.7beta04 [November 17, 2011]
-  Since the gcc driver does not recognize the --noexecstack flag, we must
-    use the -Wa prefix to have it passed through to the assembler.
-    Also removed a duplicate setting of this flag.
-  Added files that were omitted from the libpng-1.5.7beta03 zip distribution.
+Version 1.5.14beta04 [December 19, 2012]
+  Cleaned up whitespace in the synopsis portion of the manpage "libpng.3"
+  Disassembled the version number in scripts/options.awk (necessary for
+    building on SunOs).

-Version 1.5.7beta05 [November 22, 2011]
-  Removed "zTXt" from warning in generic chunk decompression function.
-  Validate time settings passed to pngset() and png_convert_to_rfc1123()
-    (Frank Busse).
-  Allow row_stride==0 to indicate default stride in simplified API.
-  Added MINGW support to CMakeLists.txt
-  Reject invalid compression flag or method when reading the iTXt chunk.
+Version 1.5.14beta05 [December 23, 2012]
+  Fixed Windows build issues, enabled ARM compilation. Various warnings issued
+    by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old
+    GCCs.) ARM support is enabled by default in zlib.props (unsupported by
+    Microsoft) and ARM compilation is made possible by deleting the check for
+    x86. The test programs cannot be run because they are not signed.

-Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
+Version 1.5.14beta06 [January 1, 2013]
+  Discontinued distributing libpng-1.5.14-1.5.13-diff.txt and similar.
+  Fixed 'make distcheck' on SUN OS - libpng.so was not being removed
+
+Version 1.5.14beta07 [January 6, 2012]
+  Replaced AM_CONFIG_HEADER(config.h) with AC_CONFIG_HEADERS([config.h])
+    in configure.ac
+  De-configured build fixes to make a range of deconfiguration options (such
+    as switching off read or write support) work in more cases.  Also upgraded
+    pngtest and pngvalid to the libpng 1.6 versions (with some modifications)
+    which provide more extensive testing.  Replaced pngtest.png because pngtest
+    writes the ancillary chunks in a different order.
+
+Version 1.5.14beta08 [January 10, 2013]
+  Check validity of "num_unknowns" parameter of png_set_unknown_chunks().
+
+  ===========================================================================
+                       NOTICE November 17, 2012:
+     The location of the git repository at SourceForge has changed.
+               Visit http://libpng.sf.net/ for details.
+  ===========================================================================
+
+Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe) or to glennrp at users.sourceforge.net
+to subscribe)
+or to glennrp at users.sourceforge.net

 Glenn R-P
--- a/227
+++ b/227
@@ -3744,13 +3744,236 @@ Version 1.5.7beta04 [November 17, 2011]
    Also removed a duplicate setting of this flag.
  Added files that were omitted from the libpng-1.5.7beta03 zip distribution.

-Version 1.5.7beta05 [November 22, 2011]
+Version 1.5.7beta05 [November 25, 2011]
  Removed "zTXt" from warning in generic chunk decompression function.
  Validate time settings passed to pngset() and png_convert_to_rfc1123()
    (Frank Busse).
-  Allow row_stride==0 to indicate default stride in simplified API.
  Added MINGW support to CMakeLists.txt
  Reject invalid compression flag or method when reading the iTXt chunk.
+  Backed out 'simplified' API changes. The API seems too complex and there
+    is a lack of consensus or enthusiasm for the proposals.  The API also
+    reveals significant bugs inside libpng (double gamma correction and the
+    known bug of being unable to retrieve a corrected palette). It seems
+    better to wait until the bugs, at least, are corrected.
+  Moved pngvalid.c into contrib/libtests
+  Rebuilt Makefile.in, configure, etc., with autoconf-2.68
+
+Version 1.5.7rc01 [December 1, 2011]
+  Replaced an "#if" with "#ifdef" in pngrtran.c
+  Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else)
+
+Version 1.5.7rc02 [December 5, 2011]
+  Revised project files and contrib/pngvalid/pngvalid.c to account for
+    the relocation of pngvalid into contrib/libtests.
+  Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400,
+    as in libpng-1.5.4.
+  Put CRLF line endings in the owatcom project files.
+
+Version 1.5.7rc03 [December 7, 2011]
+  Updated CMakeLists.txt to account for the relocation of pngvalid.c
+
+Version 1.5.7 [December 15, 2011]
+  Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings
+    reported by earlier versions.
+
+Version 1.5.8beta01 [January 15, 2011]
+  Removed '#include config.h"' from contrib/libtests/pngvalid.c.  It's not
+    needed and causes trouble for VPATH building.
+  Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper
+    location in configure.ac (Gilles Espinasse).
+  Fix bug in pngerror.c: some long warnings were being improperly truncated
+    (CVE-2011-3464, bug introduced in libpng-1.5.3beta05).
+
+Version 1.5.8rc01 [January 21, 2012]
+  No changes.
+
+Version 1.5.8rc02 [January 25, 2012]
+  Fixed Min/GW uninstall to remove libpng.dll.a
+  Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt
+
+Version 1.5.8 [February 1, 2012]
+  No changes.
+
+Version 1.5.9beta01 [February 3, 2012]
+  Rebuilt configure scripts in the tar distributions.
+
+Version 1.5.9beta02 [February 16, 2012]
+  Removed two unused definitions from scripts/pnglibconf.h.prebuilt
+  Removed some unused arrays (with #ifdef) from png_read_push_finish_row().
+  Removed tests for no-longer-used *_EMPTY_PLTE_SUPPORTED from pngstruct.h
+
+Version 1.5.9rc01 [February 17, 2012]
+  Fixed CVE-2011-3026 buffer overrun bug.  This bug was introduced when
+    iCCP chunk support was added at libpng-1.0.6. Deal more correctly with the
+    test on iCCP chunk length. Also removed spurious casts that may hide
+    problems on 16-bit systems.
+
+Version 1.5.9 [February 18, 2012]
+  No changes.
+
+Version 1.5.10beta01 [February 24, 2012]
+  Removed two useless #ifdef directives from pngread.c and one from pngrutil.c
+  Always put the CMAKE_LIBRARY in "lib" (removed special WIN32 case).
+  Removed empty vstudio/pngstest directory (Clifford Yapp).
+  Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from
+    pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c;
+    now that png_ptr->buffer is inaccessible to applications, the special
+    handling is no longer useful.
+  Fixed bug with png_handle_hIST with odd chunk length (Frank Busse).
+  Added PNG_SAFE_LIMITS feature to pnglibconf.dfa and code in pngconf.h
+    to reset the user limits to safe ones if PNG_SAFE_LIMITS is defined.
+    To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED" on the configure
+    command or put "#define PNG_SAFE_LIMITS_SUPPORTED" in pnglibconf.h.
+  Revised the SAFE_LIMITS feature to be the same as the feature in libpng16.
+  Added information about the new limits in the manual.
+
+Version 1.5.10beta02 [February 27, 2012]
+  Updated Makefile.in
+
+Version 1.5.10beta03 [March 6, 2012]
+  Removed unused "current_text" members of png_struct and the png_free()
+    of png_ptr->current_text from pngread.c
+  Added palette-index checking. Issue a png_warning() if an invalid index is
+    found.
+
+Version 1.5.10beta04 [March 10, 2012]
+  Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition.
+  Fixed CMF optimization of non-IDAT compressed chunks, which was added at
+    libpng-1.5.4.  It sometimes produced too small of a window.
+
+Version 1.5.10beta05 [March 10, 2012]
+  Reject all iCCP chunks after the first, even if the first one is invalid.
+  Issue a png_benign_error() instead of png_warning() about bad palette index.
+  Fixed an off-by-one error in the palette index checking function.
+  Revised example.c to put text strings in a temporary character array
+    instead of directly assigning string constants to png_textp members.
+    This avoids compiler warnings when -Wwrite-strings is enabled.
+
+Version 1.5.10 [March 29, 2012]
+  Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice.
+  Revised png_set_text_2() to avoid potential memory corruption (fixes
+    CVE-2011-3048, also known as CVE-2012-3425).
+
+Version 1.5.11beta01 [April 28, 2012]
+  Revised scripts/makefile.darwin: use system zlib; remove quotes around
+    architecture list; add missing ppc architecture; add architecture options
+    to shared library link; don't try to create a shared lib based on missing
+    RELEASE variable.
+  Enable png_set_check_for_invalid_index() for both read and write.
+  Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED/#endif in pngpriv.h around
+    declaration of png_handle_unknown().
+  Added -lssp_nonshared in a comment in scripts/makefile.freebsd
+    and changed deprecated NOOBJ and NOPROFILE to NO_OBJ and NO_PROFILE.
+
+Version 1.5.11rc01 [May 23, 2012]
+  No changes.
+
+Version 1.5.11rc02 [May 29, 2012]
+  Fixed some typos in comments.
+  Revised CMakeLists.txt to not attempt to make a symlink under mingw.
+  Added two images to contrib/pngsuite (1-bit and 2-bit transparent grayscale),
+    and renamed three whose names were inconsistent with those in
+    pngsuite/README.txt.
+
+Version 1.5.11rc03 [June 4, 2012]
+  Do not depend upon a GCC feature macro being available for use in generating
+    the linker mapfile symbol prefix.
+  Made fixes for new optimization warnings from gcc 4.7.0. The compiler
+    performed an optimization which is safe but then warned about it.
+    Changing the type of 'palette_number' in pngvalid.c removes the warning.
+
+Version 1.5.11rc04 [June 6, 2012]
+  Improved performance of new do_check_palette_indexes() function.
+
+Version 1.5.11rc05 [June 7, 2012]
+  Don't check palette indexes if num_palette is 0 (as it can be in MNG files).
+
+Version 1.5.11 [June 14, 2012]
+  Include zlib.h in contrib/gregbook and contrib/visupng examples.
+
+Version 1.5.12 [July 11, 2012]
+  Removed scripts/makefile.cegcc from the *.zip and *.7z distributions; it
+    depends on configure, which is not included in those archives.
+  Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386.
+
+Version 1.5.13beta01 [August 8, 2012]
+  Do not compile PNG_DEPRECATED, PNG_ALLOC and PNG_PRIVATE when __GNUC__ < 3.
+  Removed references to png_zalloc() and png_zfree() from the manual.
+  Revised PNG_FP_EXPORT and PNG_FIXED_EXPORT macros to avoid generating
+    lone semicolons (patch ported from libpng-1.6.0beta11).
+
+Version 1.5.13beta02 [September 10, 2012]
+  Corrected handling of the image array and the row_pointers array in example.c
+  When png_set_filler is used to strip a filler channel during write, the
+    code prior to 1.5 would ignore the case where the output required an
+    alpha channel or when the output was a palettized PNG.  In libpng-1.5 the
+    ignorance was lost and libpng proceeded to strip the channel resulting
+    in a bad (potential memory overwrite) failure later.  This reverts
+    the behavior to the pre-1.5 state but issues a warning. libpng-1.6 is
+    expected to issue an error on the erroneous png_set_filler call.
+  Use png_memset() consistently (pngmem.c contained some bare "memset" calls).
+
+Version 1.5.13rc01 [September 17, 2012]
+  No changes.
+
+Version 1.5.13 [September 27, 2012]
+  No changes.
+
+Version 1.5.14beta01 [October 24, 2012]
+  Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7
+  Warn about the incorrect runtime library setting for VS2010 debug DLL builds.
+  Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in
+    pngrtran.c (Domani Hannes).
+
+Version 1.5.14beta02 [omitted]
+
+Version 1.5.14beta03 [December 15, 2012]
+  Added missing "-" in front of DNO_GZIP in contrib/pngminim/*/makefile.
+  Check for png_ptr==NULL earlier in png_zalloc().
+  Ignore, with a warning, out-of-range value of num_trans in png_set_tRNS().
+  Rearranged building of ARM NEON optimizations. The ARM specific code is
+    split out entirely to the arm subdirectory and changes to configure.ac and
+    Makefile.am to add new stuff are reduced.  Now material code changes,
+    although for build test purposes, --enable-arm-neon now builds on non-ARM
+    systems.
+  Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.12.5.
+  Fixed cases of unquoted DESTDIR in Makefile.am
+  Fixed a minor bug in types to malloc and major bug in handling compressed
+    iTXt. Compressed iTXt could not be handled.
+
+Version 1.5.14beta04 [December 19, 2012]
+  Cleaned up whitespace in the synopsis portion of the manpage "libpng.3"
+  Disassembled the version number in scripts/options.awk (necessary for
+    building on SunOs).
+
+Version 1.5.14beta05 [December 23, 2012]
+  Fixed Windows build issues, enabled ARM compilation. Various warnings issued
+    by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old
+    GCCs.) ARM support is enabled by default in zlib.props (unsupported by
+    Microsoft) and ARM compilation is made possible by deleting the check for
+    x86. The test programs cannot be run because they are not signed.
+
+Version 1.5.14beta06 [January 1, 2013]
+  Discontinued distributing libpng-1.5.14-1.5.13-diff.txt and similar.
+  Fixed 'make distcheck' on SUN OS - libpng.so was not being removed
+
+Version 1.5.14beta07 [January 6, 2012]
+  Replaced AM_CONFIG_HEADER(config.h) with AC_CONFIG_HEADERS([config.h])
+    in configure.ac
+  De-configured build fixes to make a range of deconfiguration options (such
+    as switching off read or write support) work in more cases.  Also upgraded
+    pngtest and pngvalid to the libpng 1.6 versions (with some modifications)
+    which provide more extensive testing.  Replaced pngtest.png because pngtest
+    writes the ancillary chunks in a different order.
+
+Version 1.5.14beta08 [January 10, 2013]
+  Check validity of "num_unknowns" parameter of png_set_unknown_chunks().
+
+  ===========================================================================
+                       NOTICE November 17, 2012:
+     The location of the git repository at SourceForge has changed.
+               Visit http://libpng.sf.net/ for details.
+  ===========================================================================

 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,7 +35,7 @@ enable_testing()

 set(PNGLIB_MAJOR 1)
 set(PNGLIB_MINOR 5)
-set(PNGLIB_RELEASE 7)
+set(PNGLIB_RELEASE 14)
 set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
 set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})

@@ -121,7 +121,7 @@ set(pngtest_sources
  pngtest.c
 )
 set(pngvalid_sources
-  pngvalid.c
+  contrib/libtests/pngvalid.c
 )
 # SOME NEEDED DEFINITIONS

@@ -176,11 +176,7 @@ endif()

 # Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set
 IF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
-  IF(WIN32)
-    SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "bin")
-  ELSE(WIN32)
-    SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
-  ENDIF(WIN32)
+  SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
 ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)

 # Set a variable with CMake code which:
@@ -188,7 +184,7 @@ ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
 # copies if different.
 macro(CREATE_SYMLINK SRC_FILE DEST_FILE)
  FILE(REMOVE ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE})
-  if(WIN32 AND NOT CYGWIN AND NOT MINGW)
+  if(WIN32 AND NOT CYGWIN AND NOT MSYS)
    ADD_CUSTOM_COMMAND(
        OUTPUT ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}   ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE}
        COMMAND ${CMAKE_COMMAND} -E copy        ${CMAKE_CURRENT_BINARY_DIR}/${SRC_FILE} ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}
@@ -196,10 +192,10 @@ macro(CREATE_SYMLINK SRC_FILE DEST_FILE)
        DEPENDS ${PNG_LIB_NAME} ${PNG_LIB_NAME_STATIC}
        )
    ADD_CUSTOM_TARGET(${DEST_FILE}_COPY ALL DEPENDS ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE})
-  else(WIN32 AND NOT CYGWIN AND NOT MINGW)
+  else(WIN32 AND NOT CYGWIN AND NOT MSYS)
    execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink ${SRC_FILE} ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
    execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink ${SRC_FILE} ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-  endif(WIN32 AND NOT CYGWIN AND NOT MINGW)
+  endif(WIN32 AND NOT CYGWIN AND NOT MSYS)
 endmacro()

 # libpng is a library so default to 'lib'
@@ -212,24 +208,24 @@ endif(NOT DEFINED CMAKE_INSTALL_LIBDIR)
 # Only do this on Windows for Cygwin - the files don't make much sense outside
 # a UNIX look alike
 if(NOT WIN32 OR CYGWIN OR MINGW) 
-set(prefix      ${CMAKE_INSTALL_PREFIX})
-set(exec_prefix ${CMAKE_INSTALL_PREFIX})
-set(libdir      ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
-set(includedir  ${CMAKE_INSTALL_PREFIX}/include)
-set(LIBS        "-lz -lm")
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
-  ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
-CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc)
+  set(prefix      ${CMAKE_INSTALL_PREFIX})
+  set(exec_prefix ${CMAKE_INSTALL_PREFIX})
+  set(libdir      ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
+  set(includedir  ${CMAKE_INSTALL_PREFIX}/include)
+  set(LIBS        "-lz -lm")
+  configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
+    ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
+  CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc)

-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
-  ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
-CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config)
+  configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
+    ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
+  CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config)
 endif(NOT WIN32 OR CYGWIN OR MINGW)

 # SET UP LINKS
 if(PNG_SHARED)
  set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#   VERSION 15.${PNGLIB_RELEASE}.1.5.7beta05
+#   VERSION 15.${PNGLIB_RELEASE}.1.5.14beta08
    VERSION 15.${PNGLIB_RELEASE}.0
    SOVERSION 15
    CLEAN_DIRECT_OUTPUT 1)
@@ -301,10 +297,13 @@ if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
  install(FILES ${libpng_public_hdrs}   DESTINATION include/${PNGLIB_NAME})
 endif()
 if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL )
-  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
-  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
-          DESTINATION bin)
+  if(NOT WIN32 OR CYGWIN OR MINGW)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+            DESTINATION bin)
+  endif(NOT WIN32 OR CYGWIN OR MINGW)
 endif()
+
 if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
  # Install man pages
  if(NOT PNG_MAN_DIR)
@@ -313,14 +312,16 @@ if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
  install(FILES libpng.3 libpngpf.3      DESTINATION ${PNG_MAN_DIR}/man3)
  install(FILES png.5                    DESTINATION ${PNG_MAN_DIR}/man5)
  # Install pkg-config files
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
-          DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
-  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
-          DESTINATION bin)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
-          DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
-  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
-          DESTINATION bin)
+  if(NOT WIN32 OR CYGWIN OR MINGW)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
+            DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
+            DESTINATION bin)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
+            DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+            DESTINATION bin)
+  endif(NOT WIN32 OR CYGWIN OR MINGW)
 endif()

 # On versions of CMake that support it, create an export file CMake
--- a/6
+++ b/6
@@ -10,8 +10,8 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.5.7beta05, November 18, 2011, are
-Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
+libpng versions 1.2.6, August 15, 2004, through 1.5.14beta08, January 10, 2013, are
+Copyright (c) 2004, 2006-2012 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors

@@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-November 18, 2011
+January 10, 2013
--- a/Makefile.am
+++ b/Makefile.am
@@ -18,13 +18,11 @@ pngtest_SOURCES = pngtest.c
 pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
 TESTS = test-pngtest.sh

-# Do the following only if the contrib directory is present.
-check_PROGRAMS+= pngvalid pngstest
-pngvalid_SOURCES = pngvalid.c
-pngstest_SOURCES = contrib/libtests/pngstest.c
+# Only do the following if the contrib directory is present.
+check_PROGRAMS+= pngvalid
+pngvalid_SOURCES = contrib/libtests/pngvalid.c
 pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-TESTS += test-pngvalid-simple.sh test-pngvalid-full.sh test-pngstest.sh
+TESTS += test-pngvalid-simple.sh test-pngvalid-full.sh

 # man pages
 dist_man_MANS= libpng.3 libpngpf.3 png.5
@@ -40,10 +38,11 @@ lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngerror.c\
 	pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c pngrutil.c\
 	pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c pngwutil.c\
-	png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
+	png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h pngusr.dfa

 if PNG_ARM_NEON
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/filter_neon.S
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\
+	arm/filter_neon.S
 endif

 nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
@@ -132,7 +131,7 @@ $(srcdir)/scripts/pnglibconf.h.prebuilt:
 # The following is necessary to ensure that the local pnglibconf.h is used, not
 # an installed one (this can happen immediately after on a clean system if
 # 'make test' is the first thing the user does.)
-contrib/libtests/pngstest.o pngvalid.o pngtest.o: pnglibconf.h
+contrib/libtests/pngvalid.o pngtest.o: pnglibconf.h

 # We must use -DPNG_NO_USE_READ_MACROS here even when the library may actually
 # be built with PNG_USE_READ_MACROS; this prevents the read macros from
@@ -155,11 +154,11 @@ SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0'\
 	mv dfn3.out $@

 # The .dfn file for pnglibconf.h is machine generated
-pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
+pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
 	rm -f $@ dfn?.out
 	$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out version=search\
 	    ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
-	    $(DFA_XTRA) 1>&2
+	    ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2
 	$(AWK) -f ${srcdir}/scripts/options.awk out=dfn2.out dfn1.out 1>&2
 	rm dfn1.out
 	mv dfn2.out $@
@@ -199,22 +198,24 @@ dist-hook:

 # install the .../include headers as links to the new ones
 install-data-hook:
-	cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h pnglibconf.h
-	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
-	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
+	cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
+	cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
+	cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
 		pngconf.h
-	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
+	cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
 		pnglibconf.h
-	cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
-	cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
+	cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc
+	cd '$(DESTDIR)$(pkgconfigdir)'; $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc

 # do evil things to libpng to cause libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ to be used
 install-exec-hook:
-	cd $(DESTDIR)$(bindir); rm -f libpng-config
-	cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
+	cd '$(DESTDIR)$(bindir)'; rm -f libpng-config
+	cd '$(DESTDIR)$(bindir)';\
+	   $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
 	@set -x;\
-	cd $(DESTDIR)$(libdir);\
-	for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ sl dylib dll.a; do\
+	cd '$(DESTDIR)$(libdir)';\
+	for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@\
+	   sl dylib dll.a; do\
 		rm -f libpng.$$ext;\
                if test -f $(PNGLIB_BASENAME).$$ext; then\
                       $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
@@ -222,8 +223,13 @@ install-exec-hook:
 	done

 uninstall-hook:
-	cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h pnglibconf.h
-	rm -f $(DESTDIR)$(pkgconfigdir)/libpng.pc
-	rm -f $(DESTDIR)$(bindir)/libpng-config
-	rm -f $(DESTDIR)$(libdir)/libpng.a
-	rm -f $(DESTDIR)$(libdir)/libpng.la
+	cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
+	rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
+	rm -f '$(DESTDIR)$(bindir)/libpng-config'
+	rm -f '$(DESTDIR)$(libdir)/libpng.a'
+	rm -f '$(DESTDIR)$(libdir)/libpng.la'
+	rm -f '$(DESTDIR)$(libdir)/libpng.so'
+	rm -f '$(DESTDIR)$(libdir)/libpng.so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@'
+	rm -f '$(DESTDIR)$(libdir)/libpng.sl'
+	rm -f '$(DESTDIR)$(libdir)/libpng.dylib'
+	rm -f '$(DESTDIR)$(libdir)/libpng.dll.a'
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,9 +1,8 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# Makefile.in generated by automake 1.12.5 from Makefile.am.
 # @configure_input@

-# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
+# Copyright (C) 1994-2012 Free Software Foundation, Inc.
+
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -23,6 +22,23 @@


 VPATH = @srcdir@
+am__make_dryrun = \
+  { \
+    am__dry=no; \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        echo 'am--echo: ; @echo "AM"  OK' | $(MAKE) -f - 2>/dev/null \
+          | grep '^AM OK$$' >/dev/null || am__dry=yes;; \
+      *) \
+        for am__flg in $$MAKEFLAGS; do \
+          case $$am__flg in \
+            *=*|--*) ;; \
+            *n*) am__dry=yes; break;; \
+          esac; \
+        done;; \
+    esac; \
+    test $$am__dry = yes; \
+  }
 pkgdatadir = $(datadir)/@PACKAGE@
 pkglibdir = $(libdir)/@PACKAGE@
 pkglibexecdir = $(libexecdir)/@PACKAGE@
@@ -40,8 +56,10 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
-check_PROGRAMS = pngtest$(EXEEXT) pngvalid$(EXEEXT) pngstest$(EXEEXT)
-@PNG_ARM_NEON_TRUE@am__append_1 = arm/filter_neon.S
+check_PROGRAMS = pngtest$(EXEEXT) pngvalid$(EXEEXT)
+@PNG_ARM_NEON_TRUE@am__append_1 = arm/arm_init.c\
+@PNG_ARM_NEON_TRUE@	arm/filter_neon.S
+

 #   Versioned symbols and restricted exports
@HAVE_LD_VERSION_SCRIPT_TRUE@@HAVE_SOLARIS_LD_TRUE@am__append_2 = -Wl,-M -Wl,libpng.vers
@@ -86,6 +104,12 @@ am__nobase_list = $(am__nobase_strip_setup); \
 am__base_list = \
  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
 am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
 	"$(DESTDIR)$(man3dir)" "$(DESTDIR)$(man5dir)" \
 	"$(DESTDIR)$(pkgconfigdir)" "$(DESTDIR)$(pkgincludedir)" \
@@ -96,8 +120,10 @@ am__libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES_DIST = png.c \
 	pngerror.c pngget.c pngmem.c pngpread.c pngread.c pngrio.c \
 	pngrtran.c pngrutil.c pngset.c pngtrans.c pngwio.c pngwrite.c \
 	pngwtran.c pngwutil.c png.h pngconf.h pngdebug.h pnginfo.h \
-	pngpriv.h pngstruct.h arm/filter_neon.S
-@PNG_ARM_NEON_TRUE@am__objects_1 = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-filter_neon.lo
+	pngpriv.h pngstruct.h pngusr.dfa arm/arm_init.c \
+	arm/filter_neon.S
+@PNG_ARM_NEON_TRUE@am__objects_1 = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.lo \
+@PNG_ARM_NEON_TRUE@	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-filter_neon.lo
 am_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS =  \
 	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.lo \
 	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.lo \
@@ -124,9 +150,6 @@ libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LINK = $(LIBTOOL) --tag=CC \
 	$(AM_CFLAGS) $(CFLAGS) \
 	$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS) $(LDFLAGS) -o \
 	$@
-am_pngstest_OBJECTS = pngstest.$(OBJEXT)
-pngstest_OBJECTS = $(am_pngstest_OBJECTS)
-pngstest_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
 am_pngtest_OBJECTS = pngtest.$(OBJEXT)
 pngtest_OBJECTS = $(am_pngtest_OBJECTS)
 pngtest_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
@@ -154,10 +177,15 @@ LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	$(LDFLAGS) -o $@
 SOURCES = $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES) \
 	$(nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES) \
-	$(pngstest_SOURCES) $(pngtest_SOURCES) $(pngvalid_SOURCES)
+	$(pngtest_SOURCES) $(pngvalid_SOURCES)
 DIST_SOURCES =  \
 	$(am__libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES_DIST) \
-	$(pngstest_SOURCES) $(pngtest_SOURCES) $(pngvalid_SOURCES)
+	$(pngtest_SOURCES) $(pngvalid_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
 man3dir = $(mandir)/man3
 man5dir = $(mandir)/man5
 NROFF = nroff
@@ -166,24 +194,35 @@ DATA = $(pkgconfig_DATA)
 HEADERS = $(nodist_pkginclude_HEADERS) $(pkginclude_HEADERS)
 ETAGS = etags
 CTAGS = ctags
-am__tty_colors = \
-red=; grn=; lgn=; blu=; std=
+CSCOPE = cscope
+AM_RECURSIVE_TARGETS = cscope
+am__tty_colors_dummy = \
+  mgn= red= grn= lgn= blu= brg= std=; \
+  am__color_tests=no
+am__tty_colors = $(am__tty_colors_dummy)
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
 top_distdir = $(distdir)
 am__remove_distdir = \
-  { test ! -d "$(distdir)" \
-    || { find "$(distdir)" -type d ! -perm -200 -exec chmod u+w {} ';' \
-         && rm -fr "$(distdir)"; }; }
+  if test -d "$(distdir)"; then \
+    find "$(distdir)" -type d ! -perm -200 -exec chmod u+w {} ';' \
+      && rm -rf "$(distdir)" \
+      || { sleep 5 && rm -rf "$(distdir)"; }; \
+  else :; fi
+am__post_remove_distdir = $(am__remove_distdir)
 DIST_ARCHIVES = $(distdir).tar.gz
 GZIP_ENV = --best
+DIST_TARGETS = dist-gzip
 distuninstallcheck_listfiles = find . -type f -print
+am__distuninstallcheck_listfiles = $(distuninstallcheck_listfiles) \
+  | sed 's|^\./|$(prefix)/|' | grep -v '$(infodir)/dir$$'
 distcleancheck_listfiles = find . -type f -print

 #distribute headers in /usr/include/libpng/*
 pkgincludedir = $(includedir)/$(PNGLIB_BASENAME)
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
+AM_CCASFLAGS = @AM_CCASFLAGS@
 AR = @AR@
 AS = @AS@
 AUTOCONF = @AUTOCONF@
@@ -329,16 +368,14 @@ PNGLIB_BASENAME = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
 # to get red "FAIL" and green "PASS" notations during tests.
 # AUTOMAKE_OPTIONS = foreign color-tests
 AUTOMAKE_OPTIONS = foreign
+
+# test programs - run on make check, make distcheck
+TESTS_ENVIRONMENT = srcdir=$(srcdir)
 pngtest_SOURCES = pngtest.c
 pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngvalid_SOURCES = pngvalid.c
+TESTS = test-pngtest.sh test-pngvalid-simple.sh test-pngvalid-full.sh
+pngvalid_SOURCES = contrib/libtests/pngvalid.c
 pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngstest_SOURCES = contrib/libtests/pngstest.c
-pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-TESTS = test-pngtest.sh test-pngvalid-simple.sh test-pngvalid-full.sh \
-	test-pngstest.sh
-
-TESTS_ENVIRONMENT = srcdir=$(srcdir)

 # man pages
 dist_man_MANS = libpng.3 libpngpf.3 png.5
@@ -352,7 +389,7 @@ libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngerror.c \
 	pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c \
 	pngrutil.c pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c \
 	pngwutil.c png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h \
-	pngstruct.h $(am__append_1)
+	pngstruct.h pngusr.dfa $(am__append_1)
 nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS = @LIBPNG_DEFINES@
 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined \
@@ -397,7 +434,7 @@ all: config.h

 .SUFFIXES:
 .SUFFIXES: .chk .dfn .out .S .c .lo .o .obj
-am--refresh:
+am--refresh: Makefile
 	@:
 $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
@@ -433,10 +470,8 @@ $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 $(am__aclocal_m4_deps):

 config.h: stamp-h1
-	@if test ! -f $@; then \
-	  rm -f stamp-h1; \
-	  $(MAKE) $(AM_MAKEFLAGS) stamp-h1; \
-	else :; fi
+	@if test ! -f $@; then rm -f stamp-h1; else :; fi
+	@if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) stamp-h1; else :; fi

 stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
 	@rm -f stamp-h1
@@ -454,7 +489,6 @@ libpng-config: $(top_builddir)/config.status $(srcdir)/libpng-config.in
 	cd $(top_builddir) && $(SHELL) ./config.status $@
 install-libLTLIBRARIES: $(lib_LTLIBRARIES)
 	@$(NORMAL_INSTALL)
-	test -z "$(libdir)" || $(MKDIR_P) "$(DESTDIR)$(libdir)"
 	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
 	list2=; for p in $$list; do \
 	  if test -f $$p; then \
@@ -462,6 +496,8 @@ install-libLTLIBRARIES: $(lib_LTLIBRARIES)
 	  else :; fi; \
 	done; \
 	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \
 	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \
 	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
 	}
@@ -477,13 +513,15 @@ uninstall-libLTLIBRARIES:

 clean-libLTLIBRARIES:
 	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
-	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
-	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
-	  test "$$dir" != "$$p" || dir=.; \
-	  echo "rm -f \"$${dir}/so_locations\""; \
-	  rm -f "$${dir}/so_locations"; \
-	done
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la: $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES) 
+	@list='$(lib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la: $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES) $(EXTRA_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES) 
 	$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LINK) -rpath $(libdir) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LIBADD) $(LIBS)

 clean-checkPROGRAMS:
@@ -494,19 +532,19 @@ clean-checkPROGRAMS:
 	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
 	echo " rm -f" $$list; \
 	rm -f $$list
-pngstest$(EXEEXT): $(pngstest_OBJECTS) $(pngstest_DEPENDENCIES) 
-	@rm -f pngstest$(EXEEXT)
-	$(LINK) $(pngstest_OBJECTS) $(pngstest_LDADD) $(LIBS)
-pngtest$(EXEEXT): $(pngtest_OBJECTS) $(pngtest_DEPENDENCIES) 
+pngtest$(EXEEXT): $(pngtest_OBJECTS) $(pngtest_DEPENDENCIES) $(EXTRA_pngtest_DEPENDENCIES) 
 	@rm -f pngtest$(EXEEXT)
 	$(LINK) $(pngtest_OBJECTS) $(pngtest_LDADD) $(LIBS)
-pngvalid$(EXEEXT): $(pngvalid_OBJECTS) $(pngvalid_DEPENDENCIES) 
+pngvalid$(EXEEXT): $(pngvalid_OBJECTS) $(pngvalid_DEPENDENCIES) $(EXTRA_pngvalid_DEPENDENCIES) 
 	@rm -f pngvalid$(EXEEXT)
 	$(LINK) $(pngvalid_OBJECTS) $(pngvalid_LDADD) $(LIBS)
 install-binSCRIPTS: $(bin_SCRIPTS)
 	@$(NORMAL_INSTALL)
-	test -z "$(bindir)" || $(MKDIR_P) "$(DESTDIR)$(bindir)"
 	@list='$(bin_SCRIPTS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
 	for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  if test -f "$$d$$p"; then echo "$$d$$p"; echo "$$p"; else :; fi; \
@@ -534,9 +572,7 @@ uninstall-binSCRIPTS:
 	@list='$(bin_SCRIPTS)'; test -n "$(bindir)" || exit 0; \
 	files=`for p in $$list; do echo "$$p"; done | \
 	       sed -e 's,.*/,,;$(transform)'`; \
-	test -n "$$list" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(bindir)" && rm -f $$files
+	dir='$(DESTDIR)$(bindir)'; $(am__uninstall_files_from_dir)

 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -544,6 +580,7 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c

+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-filter_neon.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.Plo@am__quote@
@@ -560,7 +597,6 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngstest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngtest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngvalid.Po@am__quote@

@@ -718,19 +754,26 @@ libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo: pngwutil.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c

-pngstest.o: contrib/libtests/pngstest.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pngstest.o -MD -MP -MF $(DEPDIR)/pngstest.Tpo -c -o pngstest.o `test -f 'contrib/libtests/pngstest.c' || echo '$(srcdir)/'`contrib/libtests/pngstest.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/pngstest.Tpo $(DEPDIR)/pngstest.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='contrib/libtests/pngstest.c' object='pngstest.o' libtool=no @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.lo: arm/arm_init.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.lo `test -f 'arm/arm_init.c' || echo '$(srcdir)/'`arm/arm_init.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='arm/arm_init.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pngstest.o `test -f 'contrib/libtests/pngstest.c' || echo '$(srcdir)/'`contrib/libtests/pngstest.c
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-arm_init.lo `test -f 'arm/arm_init.c' || echo '$(srcdir)/'`arm/arm_init.c

-pngstest.obj: contrib/libtests/pngstest.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pngstest.obj -MD -MP -MF $(DEPDIR)/pngstest.Tpo -c -o pngstest.obj `if test -f 'contrib/libtests/pngstest.c'; then $(CYGPATH_W) 'contrib/libtests/pngstest.c'; else $(CYGPATH_W) '$(srcdir)/contrib/libtests/pngstest.c'; fi`
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/pngstest.Tpo $(DEPDIR)/pngstest.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='contrib/libtests/pngstest.c' object='pngstest.obj' libtool=no @AMDEPBACKSLASH@
+pngvalid.o: contrib/libtests/pngvalid.c
+@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pngvalid.o -MD -MP -MF $(DEPDIR)/pngvalid.Tpo -c -o pngvalid.o `test -f 'contrib/libtests/pngvalid.c' || echo '$(srcdir)/'`contrib/libtests/pngvalid.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/pngvalid.Tpo $(DEPDIR)/pngvalid.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='contrib/libtests/pngvalid.c' object='pngvalid.o' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pngstest.obj `if test -f 'contrib/libtests/pngstest.c'; then $(CYGPATH_W) 'contrib/libtests/pngstest.c'; else $(CYGPATH_W) '$(srcdir)/contrib/libtests/pngstest.c'; fi`
+@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pngvalid.o `test -f 'contrib/libtests/pngvalid.c' || echo '$(srcdir)/'`contrib/libtests/pngvalid.c
+
+pngvalid.obj: contrib/libtests/pngvalid.c
+@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pngvalid.obj -MD -MP -MF $(DEPDIR)/pngvalid.Tpo -c -o pngvalid.obj `if test -f 'contrib/libtests/pngvalid.c'; then $(CYGPATH_W) 'contrib/libtests/pngvalid.c'; else $(CYGPATH_W) '$(srcdir)/contrib/libtests/pngvalid.c'; fi`
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/pngvalid.Tpo $(DEPDIR)/pngvalid.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='contrib/libtests/pngvalid.c' object='pngvalid.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pngvalid.obj `if test -f 'contrib/libtests/pngvalid.c'; then $(CYGPATH_W) 'contrib/libtests/pngvalid.c'; else $(CYGPATH_W) '$(srcdir)/contrib/libtests/pngvalid.c'; fi`

 mostlyclean-libtool:
 	-rm -f *.lo
@@ -742,11 +785,18 @@ distclean-libtool:
 	-rm -f libtool config.lt
 install-man3: $(dist_man_MANS)
 	@$(NORMAL_INSTALL)
-	test -z "$(man3dir)" || $(MKDIR_P) "$(DESTDIR)$(man3dir)"
-	@list=''; test -n "$(man3dir)" || exit 0; \
-	{ for i in $$list; do echo "$$i"; done; \
-	l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
-	  sed -n '/\.3[a-z]*$$/p'; \
+	@list1=''; \
+	list2='$(dist_man_MANS)'; \
+	test -n "$(man3dir)" \
+	  && test -n "`echo $$list1$$list2`" \
+	  || exit 0; \
+	echo " $(MKDIR_P) '$(DESTDIR)$(man3dir)'"; \
+	$(MKDIR_P) "$(DESTDIR)$(man3dir)" || exit 1; \
+	{ for i in $$list1; do echo "$$i"; done;  \
+	if test -n "$$list2"; then \
+	  for i in $$list2; do echo "$$i"; done \
+	    | sed -n '/\.3[a-z]*$$/p'; \
+	fi; \
 	} | while read p; do \
 	  if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; echo "$$p"; \
@@ -775,16 +825,21 @@ uninstall-man3:
 	  sed -n '/\.3[a-z]*$$/p'; \
 	} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^3][0-9a-z]*$$,3,;x' \
 	      -e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,'`; \
-	test -z "$$files" || { \
-	  echo " ( cd '$(DESTDIR)$(man3dir)' && rm -f" $$files ")"; \
-	  cd "$(DESTDIR)$(man3dir)" && rm -f $$files; }
+	dir='$(DESTDIR)$(man3dir)'; $(am__uninstall_files_from_dir)
 install-man5: $(dist_man_MANS)
 	@$(NORMAL_INSTALL)
-	test -z "$(man5dir)" || $(MKDIR_P) "$(DESTDIR)$(man5dir)"
-	@list=''; test -n "$(man5dir)" || exit 0; \
-	{ for i in $$list; do echo "$$i"; done; \
-	l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
-	  sed -n '/\.5[a-z]*$$/p'; \
+	@list1=''; \
+	list2='$(dist_man_MANS)'; \
+	test -n "$(man5dir)" \
+	  && test -n "`echo $$list1$$list2`" \
+	  || exit 0; \
+	echo " $(MKDIR_P) '$(DESTDIR)$(man5dir)'"; \
+	$(MKDIR_P) "$(DESTDIR)$(man5dir)" || exit 1; \
+	{ for i in $$list1; do echo "$$i"; done;  \
+	if test -n "$$list2"; then \
+	  for i in $$list2; do echo "$$i"; done \
+	    | sed -n '/\.5[a-z]*$$/p'; \
+	fi; \
 	} | while read p; do \
 	  if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; echo "$$p"; \
@@ -813,13 +868,14 @@ uninstall-man5:
 	  sed -n '/\.5[a-z]*$$/p'; \
 	} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^5][0-9a-z]*$$,5,;x' \
 	      -e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,'`; \
-	test -z "$$files" || { \
-	  echo " ( cd '$(DESTDIR)$(man5dir)' && rm -f" $$files ")"; \
-	  cd "$(DESTDIR)$(man5dir)" && rm -f $$files; }
+	dir='$(DESTDIR)$(man5dir)'; $(am__uninstall_files_from_dir)
 install-pkgconfigDATA: $(pkgconfig_DATA)
 	@$(NORMAL_INSTALL)
-	test -z "$(pkgconfigdir)" || $(MKDIR_P) "$(DESTDIR)$(pkgconfigdir)"
 	@list='$(pkgconfig_DATA)'; test -n "$(pkgconfigdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkgconfigdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkgconfigdir)" || exit 1; \
+	fi; \
 	for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; \
@@ -833,13 +889,14 @@ uninstall-pkgconfigDATA:
 	@$(NORMAL_UNINSTALL)
 	@list='$(pkgconfig_DATA)'; test -n "$(pkgconfigdir)" || list=; \
 	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	test -n "$$files" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(pkgconfigdir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(pkgconfigdir)" && rm -f $$files
+	dir='$(DESTDIR)$(pkgconfigdir)'; $(am__uninstall_files_from_dir)
 install-nodist_pkgincludeHEADERS: $(nodist_pkginclude_HEADERS)
 	@$(NORMAL_INSTALL)
-	test -z "$(pkgincludedir)" || $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)"
 	@list='$(nodist_pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkgincludedir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)" || exit 1; \
+	fi; \
 	for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; \
@@ -853,13 +910,14 @@ uninstall-nodist_pkgincludeHEADERS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(nodist_pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
 	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	test -n "$$files" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(pkgincludedir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(pkgincludedir)" && rm -f $$files
+	dir='$(DESTDIR)$(pkgincludedir)'; $(am__uninstall_files_from_dir)
 install-pkgincludeHEADERS: $(pkginclude_HEADERS)
 	@$(NORMAL_INSTALL)
-	test -z "$(pkgincludedir)" || $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)"
 	@list='$(pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkgincludedir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)" || exit 1; \
+	fi; \
 	for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; \
@@ -873,9 +931,7 @@ uninstall-pkgincludeHEADERS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
 	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	test -n "$$files" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(pkgincludedir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(pkgincludedir)" && rm -f $$files
+	dir='$(DESTDIR)$(pkgincludedir)'; $(am__uninstall_files_from_dir)

 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
@@ -926,8 +982,32 @@ GTAGS:
 	  && $(am__cd) $(top_srcdir) \
 	  && gtags -i $(GTAGS_ARGS) "$$here"

+cscope: cscope.files
+	test ! -s cscope.files \
+	  || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
+
+clean-cscope:
+	-rm -f cscope.files
+
+cscope.files: clean-cscope  cscopelist
+
+cscopelist:  $(HEADERS) $(SOURCES) $(LISP)
+	list='$(SOURCES) $(HEADERS) $(LISP)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files

 check-TESTS: $(TESTS)
 	@failed=0; all=0; xfail=0; xpass=0; skip=0; \
@@ -939,7 +1019,7 @@ check-TESTS: $(TESTS)
 	    if test -f ./$$tst; then dir=./; \
 	    elif test -f $$tst; then dir=; \
 	    else dir="$(srcdir)/"; fi; \
-	    if $(TESTS_ENVIRONMENT) $${dir}$$tst; then \
+	    if $(TESTS_ENVIRONMENT) $${dir}$$tst $(AM_TESTS_FD_REDIRECT); then \
 	      all=`expr $$all + 1`; \
 	      case " $(XFAIL_TESTS) " in \
 	      *[\ \	]$$tst[\ \	]*) \
@@ -1010,14 +1090,15 @@ check-TESTS: $(TESTS)
 	  fi; \
 	  dashes=`echo "$$dashes" | sed s/./=/g`; \
 	  if test "$$failed" -eq 0; then \
-	    echo "$$grn$$dashes"; \
+	    col="$$grn"; \
 	  else \
-	    echo "$$red$$dashes"; \
+	    col="$$red"; \
 	  fi; \
-	  echo "$$banner"; \
-	  test -z "$$skipped" || echo "$$skipped"; \
-	  test -z "$$report" || echo "$$report"; \
-	  echo "$$dashes$$std"; \
+	  echo "$${col}$$dashes$${std}"; \
+	  echo "$${col}$$banner$${std}"; \
+	  test -z "$$skipped" || echo "$${col}$$skipped$${std}"; \
+	  test -z "$$report" || echo "$${col}$$report$${std}"; \
+	  echo "$${col}$$dashes$${std}"; \
 	  test "$$failed" -eq 0; \
 	else :; fi

@@ -1028,10 +1109,10 @@ distdir: $(DISTFILES)
 	    if test -f "$$d$$p"; then echo "$$d$$p"; else :; fi; done`; \
 	  if test -n "$$list" && \
 	    grep 'ab help2man is required to generate this page' $$list >/dev/null; then \
-	    echo "error: found man pages containing the \`missing help2man' replacement text:" >&2; \
+	    echo "error: found man pages containing the 'missing help2man' replacement text:" >&2; \
 	    grep -l 'ab help2man is required to generate this page' $$list | sed 's/^/         /' >&2; \
 	    echo "       to fix them, install help2man, remove and regenerate the man pages;" >&2; \
-	    echo "       typically \`make maintainer-clean' will remove them" >&2; \
+	    echo "       typically 'make maintainer-clean' will remove them" >&2; \
 	    exit 1; \
 	  else :; fi; \
 	else :; fi
@@ -1078,36 +1159,36 @@ distdir: $(DISTFILES)
 	|| chmod -R a+r "$(distdir)"
 dist-gzip: distdir
 	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
-	$(am__remove_distdir)
+	$(am__post_remove_distdir)

 dist-bzip2: distdir
-	tardir=$(distdir) && $(am__tar) | bzip2 -9 -c >$(distdir).tar.bz2
-	$(am__remove_distdir)
+	tardir=$(distdir) && $(am__tar) | BZIP2=$${BZIP2--9} bzip2 -c >$(distdir).tar.bz2
+	$(am__post_remove_distdir)

-dist-lzma: distdir
-	tardir=$(distdir) && $(am__tar) | lzma -9 -c >$(distdir).tar.lzma
-	$(am__remove_distdir)
+dist-lzip: distdir
+	tardir=$(distdir) && $(am__tar) | lzip -c $${LZIP_OPT--9} >$(distdir).tar.lz
+	$(am__post_remove_distdir)

 dist-xz: distdir
-	tardir=$(distdir) && $(am__tar) | xz -c >$(distdir).tar.xz
-	$(am__remove_distdir)
+	tardir=$(distdir) && $(am__tar) | XZ_OPT=$${XZ_OPT--e} xz -c >$(distdir).tar.xz
+	$(am__post_remove_distdir)

 dist-tarZ: distdir
 	tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
-	$(am__remove_distdir)
+	$(am__post_remove_distdir)

 dist-shar: distdir
 	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
-	$(am__remove_distdir)
+	$(am__post_remove_distdir)

 dist-zip: distdir
 	-rm -f $(distdir).zip
 	zip -rq $(distdir).zip $(distdir)
-	$(am__remove_distdir)
+	$(am__post_remove_distdir)

-dist dist-all: distdir
-	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
-	$(am__remove_distdir)
+dist dist-all:
+	$(MAKE) $(AM_MAKEFLAGS) $(DIST_TARGETS) am__post_remove_distdir='@:'
+	$(am__post_remove_distdir)

 # This target untars the dist file and tries a VPATH configuration.  Then
 # it guarantees that the distribution is self-contained by making another
@@ -1118,8 +1199,8 @@ distcheck: dist
 	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
 	*.tar.bz2*) \
 	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
-	*.tar.lzma*) \
-	  lzma -dc $(distdir).tar.lzma | $(am__untar) ;;\
+	*.tar.lz*) \
+	  lzip -dc $(distdir).tar.lz | $(am__untar) ;;\
 	*.tar.xz*) \
 	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
 	*.tar.Z*) \
@@ -1129,9 +1210,9 @@ distcheck: dist
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
 	esac
-	chmod -R a-w $(distdir); chmod a+w $(distdir)
-	mkdir $(distdir)/_build
-	mkdir $(distdir)/_inst
+	chmod -R a-w $(distdir)
+	chmod u+w $(distdir)
+	mkdir $(distdir)/_build $(distdir)/_inst
 	chmod a-w $(distdir)
 	test -d $(distdir)/_build || exit 0; \
 	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
@@ -1139,6 +1220,7 @@ distcheck: dist
 	  && am__cwd=`pwd` \
 	  && $(am__cd) $(distdir)/_build \
 	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
 	    $(DISTCHECK_CONFIGURE_FLAGS) \
 	  && $(MAKE) $(AM_MAKEFLAGS) \
 	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
@@ -1162,13 +1244,21 @@ distcheck: dist
 	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
 	  && cd "$$am__cwd" \
 	  || exit 1
-	$(am__remove_distdir)
+	$(am__post_remove_distdir)
 	@(echo "$(distdir) archives ready for distribution: "; \
 	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
 	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
 distuninstallcheck:
-	@$(am__cd) '$(distuninstallcheck_dir)' \
-	&& test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
+	@test -n '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: trying to run $@ with an empty' \
+	       '$$(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	$(am__cd) '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
 	   || { echo "ERROR: files left after uninstall:" ; \
 	        if test -n "$(DESTDIR)"; then \
 	          echo "  (check DESTDIR support)"; \
@@ -1204,10 +1294,15 @@ install-am: all-am

 installcheck: installcheck-am
 install-strip:
-	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	  `test -z '$(STRIP)' || \
-	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
 mostlyclean-generic:

 clean-generic:
@@ -1307,13 +1402,14 @@ uninstall-man: uninstall-man3 uninstall-man5
 	install-strip uninstall-am

 .PHONY: CTAGS GTAGS all all-am am--refresh check check-TESTS check-am \
-	clean clean-checkPROGRAMS clean-generic clean-libLTLIBRARIES \
-	clean-libtool ctags dist dist-all dist-bzip2 dist-gzip \
-	dist-hook dist-lzma dist-shar dist-tarZ dist-xz dist-zip \
-	distcheck distclean distclean-compile distclean-generic \
-	distclean-hdr distclean-libtool distclean-tags distcleancheck \
-	distdir distuninstallcheck dvi dvi-am html html-am info \
-	info-am install install-am install-binSCRIPTS install-data \
+	clean clean-checkPROGRAMS clean-cscope clean-generic \
+	clean-libLTLIBRARIES clean-libtool cscope cscopelist ctags \
+	dist dist-all dist-bzip2 dist-gzip dist-hook dist-lzip \
+	dist-shar dist-tarZ dist-xz dist-zip distcheck distclean \
+	distclean-compile distclean-generic distclean-hdr \
+	distclean-libtool distclean-tags distcleancheck distdir \
+	distuninstallcheck dvi dvi-am html html-am info info-am \
+	install install-am install-binSCRIPTS install-data \
 	install-data-am install-data-hook install-dvi install-dvi-am \
 	install-exec install-exec-am install-exec-hook install-html \
 	install-html-am install-info install-info-am \
@@ -1357,7 +1453,7 @@ $(srcdir)/scripts/pnglibconf.h.prebuilt:
 # The following is necessary to ensure that the local pnglibconf.h is used, not
 # an installed one (this can happen immediately after on a clean system if
 # 'make test' is the first thing the user does.)
-contrib/libtests/pngstest.o pngvalid.o pngtest.o: pnglibconf.h
+contrib/libtests/pngvalid.o pngtest.o: pnglibconf.h

 .dfn.out:
 	rm -f $@ dfn.c dfn?.out
@@ -1372,11 +1468,11 @@ contrib/libtests/pngstest.o pngvalid.o pngtest.o: pnglibconf.h
 	mv dfn3.out $@

 # The .dfn file for pnglibconf.h is machine generated
-pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
+pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
 	rm -f $@ dfn?.out
 	$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out version=search\
 	    ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
-	    $(DFA_XTRA) 1>&2
+	    ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2
 	$(AWK) -f ${srcdir}/scripts/options.awk out=dfn2.out dfn1.out 1>&2
 	rm dfn1.out
 	mv dfn2.out $@
@@ -1416,22 +1512,24 @@ dist-hook:

 # install the .../include headers as links to the new ones
 install-data-hook:
-	cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h pnglibconf.h
-	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
-	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
+	cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
+	cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
+	cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
 		pngconf.h
-	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
+	cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
 		pnglibconf.h
-	cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
-	cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
+	cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc
+	cd '$(DESTDIR)$(pkgconfigdir)'; $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc

 # do evil things to libpng to cause libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ to be used
 install-exec-hook:
-	cd $(DESTDIR)$(bindir); rm -f libpng-config
-	cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
+	cd '$(DESTDIR)$(bindir)'; rm -f libpng-config
+	cd '$(DESTDIR)$(bindir)';\
+	   $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
 	@set -x;\
-	cd $(DESTDIR)$(libdir);\
-	for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ sl dylib dll.a; do\
+	cd '$(DESTDIR)$(libdir)';\
+	for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@\
+	   sl dylib dll.a; do\
 		rm -f libpng.$$ext;\
                if test -f $(PNGLIB_BASENAME).$$ext; then\
                       $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
@@ -1439,11 +1537,16 @@ install-exec-hook:
 	done

 uninstall-hook:
-	cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h pnglibconf.h
-	rm -f $(DESTDIR)$(pkgconfigdir)/libpng.pc
-	rm -f $(DESTDIR)$(bindir)/libpng-config
-	rm -f $(DESTDIR)$(libdir)/libpng.a
-	rm -f $(DESTDIR)$(libdir)/libpng.la
+	cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
+	rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
+	rm -f '$(DESTDIR)$(bindir)/libpng-config'
+	rm -f '$(DESTDIR)$(libdir)/libpng.a'
+	rm -f '$(DESTDIR)$(libdir)/libpng.la'
+	rm -f '$(DESTDIR)$(libdir)/libpng.so'
+	rm -f '$(DESTDIR)$(libdir)/libpng.so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@'
+	rm -f '$(DESTDIR)$(libdir)/libpng.sl'
+	rm -f '$(DESTDIR)$(libdir)/libpng.dylib'
+	rm -f '$(DESTDIR)$(libdir)/libpng.dll.a'

 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
--- a/2
+++ b/2
@@ -1,4 +1,4 @@
-README for libpng version 1.5.7beta05 - November 18, 2011 (shared library 15.0)
+README for libpng version 1.5.14beta08 - January 10, 2013 (shared library 15.0)
 See the note about version numbers near the top of png.h

 See INSTALL for instructions on how to install libpng.
--- a/aclocal.m4
+++ b/aclocal.m4
--- a/arm/arm_init.c
+++ b/arm/arm_init.c
@@ -0,0 +1,86 @@
+
+/* arm_init.c - NEON optimised filter functions
+ *
+ * Copyright (c) 2012 Glenn Randers-Pehrson
+ * Written by Mans Rullgard, 2011.
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ */
+#include "../pngpriv.h"
+
+/* __arm__ is defined by GCC, MSVC defines _M_ARM to the ARM version number */
+#if defined __linux__ && defined __arm__
+#include <stdio.h>
+#include <elf.h>
+#include <asm/hwcap.h>
+
+static int png_have_hwcap(unsigned cap)
+{
+   FILE *f = fopen("/proc/self/auxv", "r");
+   Elf32_auxv_t aux;
+   int have_cap = 0;
+
+   if (!f)
+      return 0;
+
+   while (fread(&aux, sizeof(aux), 1, f) > 0)
+   {
+      if (aux.a_type == AT_HWCAP &&
+          aux.a_un.a_val & cap)
+      {
+         have_cap = 1;
+         break;
+      }
+   }
+
+   fclose(f);
+
+   return have_cap;
+}
+#endif /* __linux__ && __arm__ */
+
+void
+png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
+{
+#ifdef __arm__
+#ifdef __linux__
+   if (!png_have_hwcap(HWCAP_NEON))
+      return;
+#endif
+
+   /* IMPORTANT: any new external functions used here must be declared using
+    * PNG_INTERNAL_FUNCTION in ../pngpriv.h.  This is required so that the
+    * 'prefix' option to configure works:
+    *
+    *    ./configure --with-libpng-prefix=foobar_
+    *
+    * Verify you have got this right by running the above command, doing a build
+    * and examining pngprefix.h; it must contain a #define for every external
+    * function you add.  (Notice that this happens automatically for the
+    * initialization function.)
+    */
+   pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_neon;
+
+   if (bpp == 3)
+   {
+      pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_neon;
+      pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_neon;
+      pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
+         png_read_filter_row_paeth3_neon;
+   }
+
+   else if (bpp == 4)
+   {
+      pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_neon;
+      pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_neon;
+      pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
+          png_read_filter_row_paeth4_neon;
+   }
+#else
+   PNG_UNUSED(pp)
+   PNG_UNUSED(bpp)
+#endif
+}
--- a/arm/filter_neon.S
+++ b/arm/filter_neon.S
@@ -3,12 +3,14 @@
 *
 * Copyright (c) 2011 Glenn Randers-Pehrson
 * Written by Mans Rullgard, 2011.
+ * Last changed in libpng 1.5.7 [December 15, 2011]
 *
 * This code is released under the libpng license.
 * For conditions of distribution and use, see the disclaimer
 * and license in png.h
 */

+#ifdef __arm__
 #if defined(__linux__) && defined(__ELF__)
 .section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
 #endif
@@ -223,3 +225,4 @@ func    png_read_filter_row_paeth3_neon, export=1

        pop             {r4,pc}
 endfunc
+#endif
--- a/config.guess
+++ b/config.guess
@@ -2,9 +2,9 @@
 # Attempt to guess a canonical system name.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
 #   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   2011 Free Software Foundation, Inc.
+#   2011, 2012 Free Software Foundation, Inc.

-timestamp='2011-02-02'
+timestamp='2012-09-25'

 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -17,9 +17,7 @@ timestamp='2011-02-02'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -57,8 +55,8 @@ GNU config.guess ($timestamp)

 Originally written by Per Bothner.
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free
-Software Foundation, Inc.
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+Free Software Foundation, Inc.

 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -140,35 +138,12 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown

-case "${UNAME_SYSTEM}" in
-Linux|GNU/*)
-	eval $set_cc_for_build
-	cat <<-EOF > $dummy.c
-	#include <features.h>
-	#ifdef __UCLIBC__
-	# ifdef __UCLIBC_CONFIG_VERSION__
-	LIBC=uclibc __UCLIBC_CONFIG_VERSION__
-	# else
-	LIBC=uclibc
-	# endif
-	#else
-	# ifdef __dietlibc__
-	LIBC=dietlibc
-	# else
-	LIBC=gnu
-	# endif
-	#endif
-	EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
-	;;
-esac
-
 # Note: order is significant - the case branches are not exclusive.

 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
    *:NetBSD:*:*)
 	# NetBSD (nbsd) targets should (where applicable) match one or
-	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
 	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
 	# switched to ELF, *-*-netbsd* would select the old
 	# object file format.  This provides both forward
@@ -225,6 +200,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
 	echo "${machine}-${os}${release}"
 	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+	exit ;;
    *:OpenBSD:*:*)
 	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
 	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
@@ -327,7 +306,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
 	exit ;;
-    arm:riscos:*:*|arm:RISCOS:*:*)
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
 	echo arm-unknown-riscos
 	exit ;;
    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
@@ -815,21 +794,26 @@ EOF
 	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
 	exit ;;
    *:FreeBSD:*:*)
-	case ${UNAME_MACHINE} in
-	    pc98)
-		echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_PROCESSOR} in
 	    amd64)
 		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	    *)
-		echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	esac
 	exit ;;
    i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
 	exit ;;
+    *:MINGW64*:*)
+	echo ${UNAME_MACHINE}-pc-mingw64
+	exit ;;
    *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
    i*:windows32*:*)
 	# uname -m includes "-pc" on this system.
 	echo ${UNAME_MACHINE}-mingw32
@@ -875,15 +859,22 @@ EOF
 	exit ;;
    *:GNU:*:*)
 	# the GNU system
-	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit ;;
    *:GNU/*:*:*)
 	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
 	exit ;;
    i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
+    aarch64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
    alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
 	  EV5)   UNAME_MACHINE=alphaev5 ;;
@@ -895,42 +886,59 @@ EOF
 	  EV68*) UNAME_MACHINE=alphaev68 ;;
 	esac
 	objdump --private-headers /bin/sh | grep -q ld.so.1
-	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
 	exit ;;
    arm*:Linux:*:*)
 	eval $set_cc_for_build
 	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
 	    | grep -q __ARM_EABI__
 	then
-	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	    echo ${UNAME_MACHINE}-unknown-linux-gnu
 	else
-	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+	    fi
 	fi
 	exit ;;
    avr32*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    cris:Linux:*:*)
-	echo cris-axis-linux-${LIBC}
+	echo ${UNAME_MACHINE}-axis-linux-gnu
 	exit ;;
    crisv32:Linux:*:*)
-	echo crisv32-axis-linux-${LIBC}
+	echo ${UNAME_MACHINE}-axis-linux-gnu
 	exit ;;
    frv:Linux:*:*)
-	echo frv-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    hexagon:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    i*86:Linux:*:*)
-	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	LIBC=gnu
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#ifdef __dietlibc__
+	LIBC=dietlibc
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+	echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
 	exit ;;
    ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    mips:Linux:*:* | mips64:Linux:*:*)
 	eval $set_cc_for_build
@@ -949,54 +957,54 @@ EOF
 	#endif
 EOF
 	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
 	;;
    or32:Linux:*:*)
-	echo or32-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    padre:Linux:*:*)
-	echo sparc-unknown-linux-${LIBC}
+	echo sparc-unknown-linux-gnu
 	exit ;;
    parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo hppa64-unknown-linux-${LIBC}
+	echo hppa64-unknown-linux-gnu
 	exit ;;
    parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
-	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
-	  *)    echo hppa-unknown-linux-${LIBC} ;;
+	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
+	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
+	  *)    echo hppa-unknown-linux-gnu ;;
 	esac
 	exit ;;
    ppc64:Linux:*:*)
-	echo powerpc64-unknown-linux-${LIBC}
+	echo powerpc64-unknown-linux-gnu
 	exit ;;
    ppc:Linux:*:*)
-	echo powerpc-unknown-linux-${LIBC}
+	echo powerpc-unknown-linux-gnu
 	exit ;;
    s390:Linux:*:* | s390x:Linux:*:*)
 	echo ${UNAME_MACHINE}-ibm-linux
 	exit ;;
    sh64*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    tile*:Linux:*:*)
-	echo ${UNAME_MACHINE}-tilera-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    vax:Linux:*:*)
-	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+	echo ${UNAME_MACHINE}-dec-linux-gnu
 	exit ;;
    x86_64:Linux:*:*)
-	echo x86_64-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    xtensa*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
    i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -1200,6 +1208,9 @@ EOF
    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
 	echo i586-pc-haiku
 	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
    SX-4:SUPER-UX:*:*)
 	echo sx4-nec-superux${UNAME_RELEASE}
 	exit ;;
@@ -1255,7 +1266,7 @@ EOF
    NEO-?:NONSTOP_KERNEL:*:*)
 	echo neo-tandem-nsk${UNAME_RELEASE}
 	exit ;;
-    NSE-?:NONSTOP_KERNEL:*:*)
+    NSE-*:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
    NSR-?:NONSTOP_KERNEL:*:*)
@@ -1324,11 +1335,11 @@ EOF
    i*86:AROS:*:*)
 	echo ${UNAME_MACHINE}-pc-aros
 	exit ;;
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
+	exit ;;
 esac

-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
 eval $set_cc_for_build
 cat >$dummy.c <<EOF
 #ifdef _SEQUENT_
--- a/config.h.in
+++ b/config.h.in
@@ -76,8 +76,8 @@
 /* Align row buffers */
 #undef PNG_ALIGNED_MEMORY_SUPPORTED

-/* Enable ARM NEON optmizations */
-#undef PNG_ARM_NEON
+/* ARM NEON filter initialization function */
+#undef PNG_FILTER_OPTIMIZATIONS

 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
--- a/config.sub
+++ b/config.sub
@@ -2,9 +2,9 @@
 # Configuration validation subroutine script.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
 #   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   2011 Free Software Foundation, Inc.
+#   2011, 2012 Free Software Foundation, Inc.

-timestamp='2011-02-02'
+timestamp='2012-10-10'

 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
@@ -21,9 +21,7 @@ timestamp='2011-02-02'
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -76,8 +74,8 @@ version="\
 GNU config.sub ($timestamp)

 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free
-Software Foundation, Inc.
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+Free Software Foundation, Inc.

 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -125,13 +123,17 @@ esac
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-  linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
  knetbsd*-gnu* | netbsd*-gnu* | \
  kopensolaris*-gnu* | \
  storm-chaos* | os2-emx* | rtmk-nova*)
    os=-$maybe_os
    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
  *)
    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
    if [ $basic_machine != $1 ]
@@ -154,7 +156,7 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray | -microblaze)
+	-apple | -axis | -knuth | -cray | -microblaze*)
 		os=
 		basic_machine=$1
 		;;
@@ -223,6 +225,12 @@ case $os in
 	-isc*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
 	-lynx*)
 		os=-lynxos
 		;;
@@ -247,20 +255,27 @@ case $basic_machine in
 	# Some are omitted here because they have special meanings below.
 	1750a | 580 \
 	| a29k \
+	| aarch64 | aarch64_be \
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+	| arc \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| be32 | be64 \
 	| bfin \
 	| c4x | clipper \
-	| d10v | d30v | dlx | dsp16xx | dvp \
+	| d10v | d30v | dlx | dsp16xx \
+	| epiphany \
 	| fido | fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
+	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
-	| maxq | mb | microblaze | mcore | mep | metag \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
 	| mips | mipsbe | mipseb | mipsel | mipsle \
 	| mips16 \
 	| mips64 | mips64el \
@@ -286,22 +301,23 @@ case $basic_machine in
 	| nds32 | nds32le | nds32be \
 	| nios | nios2 \
 	| ns16k | ns32k \
+	| open8 \
 	| or32 \
 	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
 	| pyramid \
-	| rx \
+	| rl78 | rx \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu | strongarm \
-	| tahoe | thumb | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
 	| ubicom32 \
-	| v850 | v850e \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
 	| we32k \
-	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
 		basic_machine=$basic_machine-unknown
 		;;
@@ -314,8 +330,7 @@ case $basic_machine in
 	c6x)
 		basic_machine=tic6x-unknown
 		;;
-	m6811 | m68hc11 | m6812 | m68hc12 | picochip)
-		# Motorola 68HC11/12.
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
@@ -325,6 +340,21 @@ case $basic_machine in
 		basic_machine=mt-unknown
 		;;

+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
@@ -339,11 +369,13 @@ case $basic_machine in
 	# Recognize the basic CPU types with company name.
 	580-* \
 	| a29k-* \
+	| aarch64-* | aarch64_be-* \
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
+	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
 	| clipper-* | craynv-* | cydra-* \
@@ -352,12 +384,15 @@ case $basic_machine in
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
+	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
@@ -382,24 +417,26 @@ case $basic_machine in
 	| nds32-* | nds32le-* | nds32be-* \
 	| nios-* | nios2-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
-	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
 	| pyramid-* \
-	| romp-* | rs6000-* | rx-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
-	| tahoe-* | thumb-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| tahoe-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
-	| tile-* | tilegx-* \
+	| tile*-* \
 	| tron-* \
 	| ubicom32-* \
-	| v850-* | v850e-* | vax-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
 	| we32k-* \
-	| x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
 	| ymp-* \
 	| z8k-* | z80-*)
@@ -697,7 +734,6 @@ case $basic_machine in
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
 		;;
-# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
 	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
@@ -755,9 +791,13 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
-	microblaze)
+	microblaze*)
 		basic_machine=microblaze-xilinx
 		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
 	mingw32)
 		basic_machine=i386-pc
 		os=-mingw32
@@ -773,24 +813,6 @@ case $basic_machine in
 		basic_machine=m68k-atari
 		os=-mint
 		;;
-	mipsEE* | ee | ps2)
-		basic_machine=mips64r5900el-scei
-		case $os in
-		    -linux*)
-			;;
-		    *)
-			os=-elf
-			;;
-		esac
-		;;
-	iop)
-		basic_machine=mipsel-scei
-		os=-irx
-		;;
-	dvp)
-		basic_machine=dvp-scei
-		os=-elf
-		;;
 	mips3*-*)
 		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
 		;;
@@ -812,10 +834,18 @@ case $basic_machine in
 	ms1-*)
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
+	msys)
+		basic_machine=i386-pc
+		os=-msys
+		;;
 	mvs)
 		basic_machine=i370-ibm
 		os=-mvs
 		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
@@ -968,9 +998,10 @@ case $basic_machine in
 		;;
 	power)	basic_machine=power-ibm
 		;;
-	ppc)	basic_machine=powerpc-unknown
+	ppc | ppcbe)	basic_machine=powerpc-unknown
 		;;
-	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	ppcle | powerpclittle | ppc-le | powerpc-little)
 		basic_machine=powerpcle-unknown
@@ -1064,6 +1095,9 @@ case $basic_machine in
 		basic_machine=i860-stratus
 		os=-sysv4
 		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -1120,13 +1154,8 @@ case $basic_machine in
 		basic_machine=t90-cray
 		os=-unicos
 		;;
-	# This must be matched before tile*.
-	tilegx*)
-		basic_machine=tilegx-unknown
-		os=-linux-gnu
-		;;
 	tile*)
-		basic_machine=tile-unknown
+		basic_machine=$basic_machine-unknown
 		os=-linux-gnu
 		;;
 	tx39)
@@ -1196,6 +1225,9 @@ case $basic_machine in
 	xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
 	ymp)
 		basic_machine=ymp-cray
 		os=-unicos
@@ -1327,19 +1359,19 @@ case $os in
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -openbsd* | -solidbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* \
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* | -cegcc* \
-	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -linux-android* \
-	      | -linux-newlib* | -linux-uclibc* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
-	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* | -irx* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
@@ -1518,6 +1550,9 @@ case $basic_machine in
 	c4x-* | tic4x-*)
 		os=-coff
 		;;
+	hexagon-*)
+		os=-elf
+		;;
 	tic54x-*)
 		os=-coff
 		;;
@@ -1545,9 +1580,6 @@ case $basic_machine in
 		;;
 	m68000-sun)
 		os=-sunos3
-		# This also exists in the configure program, but was not the
-		# default.
-		# os=-sunos4
 		;;
 	m68*-cisco)
 		os=-aout
--- a/517
+++ b/517
--- a/configure.ac
+++ b/configure.ac
@@ -18,20 +18,20 @@ AC_PREREQ(2.59)

 dnl Version number stuff here:

-AC_INIT([libpng], [1.5.7beta05], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.5.14beta08], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE

-PNGLIB_VERSION=1.5.7beta05
+PNGLIB_VERSION=1.5.14beta08
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=5
-PNGLIB_RELEASE=7
+PNGLIB_RELEASE=14

 dnl End of version number stuff

 AC_CONFIG_SRCDIR([pngget.c])
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS([config.h])

 # Checks for programs.
 AC_LANG([C])
@@ -101,8 +101,6 @@ LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG
 LIBPNG_DEFINES=$LIBPNG_DEFINES
 AC_SUBST(LIBPNG_DEFINES)

-AC_MSG_CHECKING([if libraries can be versioned])
-
 AC_MSG_CHECKING([if using Solaris linker])
 SLD=`$LD --version 2>&1 | grep Solaris`
 if test "$SLD"; then
@@ -114,6 +112,7 @@ else
 fi
 AM_CONDITIONAL(HAVE_SOLARIS_LD, test "$have_solaris_ld" = "yes")

+AC_MSG_CHECKING([if libraries can be versioned])
 # Special case for PE/COFF platforms: ld reports
 # support for version-script, but doesn't actually
 # DO anything with it.
@@ -146,9 +145,9 @@ AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
 if test "$have_ld_version_script" = "yes"; then
    AC_MSG_CHECKING([for symbol prefix])
    SYMBOL_PREFIX=`echo "PREFIX=__USER_LABEL_PREFIX__" \
-                   | ${CPP-${CC-gcc} -E} - 2>&1 \
-                   | ${EGREP-grep} "^PREFIX=" \
-                   | ${SED-sed} "s:^PREFIX=::"`
+                  | ${CPP-${CC-gcc} -E} - 2>&1 \
+                  | ${EGREP-grep} "^PREFIX=" \
+                  | ${SED-sed} -e "s:^PREFIX=::" -e "s:__USER_LABEL_PREFIX__::"`
    AC_SUBST(SYMBOL_PREFIX)
    AC_MSG_RESULT($SYMBOL_PREFIX)
 fi
@@ -192,8 +191,11 @@ AC_SUBST([AM_CCASFLAGS], [-Wa,--noexecstack])
 AC_ARG_ENABLE([arm-neon],
 	AC_HELP_STRING([--enable-arm-neon], [Enable ARM NEON optimizations]),
 	[if test "${enableval}" = yes; then
-		AC_DEFINE([PNG_ARM_NEON], [1], [Enable ARM NEON optimizations])
-		AC_DEFINE([PNG_ALIGNED_MEMORY_SUPPORTED], [1], [Align row buffers])
+		AC_DEFINE([PNG_FILTER_OPTIMIZATIONS],
+                          [png_init_filter_functions_neon],
+                          [ARM NEON filter initialization function])
+		AC_DEFINE([PNG_ALIGNED_MEMORY_SUPPORTED], [1],
+                          [Align row buffers])
 	fi])
 AM_CONDITIONAL([PNG_ARM_NEON], [test "${enable_arm_neon:-no}" = yes])

--- a/contrib/gregbook/readpng.c
+++ b/contrib/gregbook/readpng.c
@@ -55,8 +55,9 @@

 #include <stdio.h>
 #include <stdlib.h>
+#include <zlib.h>

-#include "png.h"        /* libpng header; includes zlib.h */
+#include "png.h"        /* libpng header */
 #include "readpng.h"    /* typedefs, common macros, public prototypes */

 /* future versions of libpng will provide this macro: */
--- a/contrib/gregbook/writepng.c
+++ b/contrib/gregbook/writepng.c
@@ -55,8 +55,9 @@


 #include <stdlib.h>     /* for exit() prototype */
+#include <zlib.h>

-#include "png.h"        /* libpng header; includes zlib.h and setjmp.h */
+#include "png.h"        /* libpng header, includes setjmp.h */
 #include "writepng.h"   /* typedefs, common macros, public prototypes */


--- a/contrib/libtests/pngstest.c
+++ b/contrib/libtests/pngstest.c
--- a/contrib/libtests/pngvalid.c
+++ b/contrib/libtests/pngvalid.c
--- a/contrib/libtests/timepng.c
+++ b/contrib/libtests/timepng.c
@@ -1,289 +0,0 @@
-/* timepng.c
- *
- * Copyright (c) 2011 John Cunningham Bowler
- *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Load an arbitrary number of PNG files (from the command line, or, if there
- * are no arguments on the command line, from stdin) then run a time test by
- * reading each file by row.  The test does nothing with the read result and
- * does no transforms.  The only output is a time as a floating point number of
- * seconds with 9 decimal digits.
- */
-#include <stdlib.h>
-#include <stdio.h>
-
-#include <time.h>
-
-#include "png.h"
-
-static int read_png(FILE *fp)
-{
-   png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,0,0,0);
-   png_infop info_ptr = NULL;
-   png_bytep row = NULL, display = NULL;
-
-   if (png_ptr == NULL)
-      return 0;
-
-   if (setjmp(png_jmpbuf(png_ptr)))
-   {
-      png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
-      if (row != NULL) free(row);
-      if (display != NULL) free(display);
-      return 0;
-   }
-
-   png_init_io(png_ptr, fp);
-
-   info_ptr = png_create_info_struct(png_ptr);
-   if (info_ptr == NULL)
-      png_error(png_ptr, "OOM allocating info structure");
-
-   png_read_info(png_ptr, info_ptr);
-
-   {
-      png_size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
-      row = malloc(rowbytes);
-      display = malloc(rowbytes);
-
-      if (row == NULL || display == NULL)
-         png_error(png_ptr, "OOM allocating row buffers");
-
-      {
-         png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
-         int passes = png_set_interlace_handling(png_ptr);
-         int pass;
-
-         png_start_read_image(png_ptr);
-
-         for (pass = 0; pass < passes; ++pass)
-         {
-            png_uint_32 y = height;
-
-            /* NOTE: this trashes the row each time; interlace handling won't
-             * work, but this avoids memory thrashing for speed testing.
-             */
-            while (y-- > 0)
-               png_read_row(png_ptr, row, display);
-         }
-      }
-   }
-
-   /* Make sure to read to the end of the file: */
-   png_read_end(png_ptr, info_ptr);
-   png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
-   free(row);
-   free(display);
-   return 1;
-}
-
-static int mytime(struct timespec *t)
-{
-   /* Do the timing using clock_gettime and the per-process timer. */
-   if (!clock_gettime(CLOCK_PROCESS_CPUTIME_ID, t))
-      return 1;
-
-   perror("CLOCK_PROCESS_CPUTIME_ID");
-   fprintf(stderr, "timepng: could not get the time\n");
-   return 0;
-}
-
-static int perform_one_test(FILE *fp, int nfiles)
-{
-   int i;
-   struct timespec before, after;
-
-   /* Clear out all errors: */
-   rewind(fp);
-
-   if (mytime(&before))
-   {
-      for (i=0; i<nfiles; ++i)
-      {
-         if (read_png(fp))
-         {
-            if (ferror(fp))
-            {
-               perror("temporary file");
-               fprintf(stderr, "file %d: error reading PNG data\n", i);
-               return 0;
-            }
-         }
-
-         else
-         {
-            perror("temporary file");
-            fprintf(stderr, "file %d: error from libpng\n", i);
-            return 0;
-         }
-      }
-   }
-
-   else
-      return 0;
-
-   if (mytime(&after))
-   {
-      /* Work out the time difference and print it - this is the only output,
-       * so flush it immediately.
-       */
-      unsigned long s = after.tv_sec - before.tv_sec;
-      long ns = after.tv_nsec - before.tv_nsec;
-
-      if (ns < 0)
-      {
-         --s;
-         ns += 1000000000;
-
-         if (ns < 0)
-         {
-            fprintf(stderr, "timepng: bad clock from kernel\n");
-            return 0;
-         }
-      }
-
-      printf("%lu.%.9ld\n", s, ns);
-      fflush(stdout);
-      if (ferror(stdout))
-      {
-         fprintf(stderr, "timepng: error writing output\n");
-         return 0;
-      }
-
-      /* Successful return */
-      return 1;
-   }
-
-   else
-      return 0;
-}
-
-static int add_one_file(FILE *fp, char *name)
-{
-   FILE *ip = fopen(name, "rb");
-
-   if (ip != NULL)
-   {
-      int ch;
-      for (;;)
-      {
-         ch = getc(ip);
-         if (ch == EOF) break;
-         putc(ch, fp);
-      }
-
-      if (ferror(ip))
-      {
-         perror(name);
-         fprintf(stderr, "%s: read error\n", name);
-         return 0;
-      }
-
-      (void)fclose(ip);
-
-      if (ferror(fp))
-      {
-         perror("temporary file");
-         fprintf(stderr, "temporary file write error\n");
-         return 0;
-      }
-   }
-
-   else
-   {
-      perror(name);
-      fprintf(stderr, "%s: open failed\n", name);
-      return 0;
-   }
-
-   return 1;
-}
-
-int main(int argc, char **argv)
-{
-   int ok = 0;
-   FILE *fp = tmpfile();
-
-   if (fp != NULL)
-   {
-      int err = 0;
-      int nfiles = 0;
-
-      if (argc > 1)
-      {
-         int i;
-
-         for (i=1; i<argc; ++i)
-         {
-            if (add_one_file(fp, argv[i]))
-               ++nfiles;
-
-            else
-            {
-               err = 1;
-               break;
-            }
-         }
-      }
-
-      else
-      {
-         char filename[FILENAME_MAX+1];
-
-         while (fgets(filename, FILENAME_MAX+1, stdin))
-         {
-            int len = strlen(filename);
-
-            if (filename[len-1] == '\n')
-            {
-               filename[len-1] = 0;
-               if (add_one_file(fp, filename))
-                  ++nfiles;
-
-               else
-               {
-                  err = 1;
-                  break;
-               }
-            }
-
-            else
-            {
-               fprintf(stderr, "timepng: truncated file name ...%s\n",
-                  filename+len-32);
-               err = 1;
-               break;
-            }
-         }
-
-         if (ferror(stdin))
-         {
-            fprintf(stderr, "timepng: stdin: read error\n");
-            err = 1;
-         }
-      }
-
-      if (!err)
-      {
-         if (nfiles > 0)
-            ok = perform_one_test(fp, nfiles);
-
-         else
-            fprintf(stderr, "usage: timepng {files} or ls files | timepng\n");
-      }
-
-      (void)fclose(fp);
-   }
-
-   else
-      fprintf(stderr, "timepng: could not open temporary file\n");
-
-   /* Exit code 0 on success. */
-   return ok == 0;
-}
--- a/contrib/pngminim/decoder/makefile
+++ b/contrib/pngminim/decoder/makefile
@@ -14,7 +14,7 @@ LD=$(CC)
 RM=rm -f
 COPY=cp

-CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DNO_GZIP -I. -O1
+CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP -I. -O1

 C=.c
 O=.o
--- a/contrib/pngminim/encoder/README
+++ b/contrib/pngminim/encoder/README
@@ -1,6 +1,6 @@
 This demonstrates the use of PNG_USER_CONFIG and pngusr.h

-The makefile builds a minimal write-only decoder with embedded libpng
+The makefile builds a minimal write-only encoder with embedded libpng
 and zlib.

 Specify the location of the zlib source (1.2.1 or later) as ZLIBSRC
--- a/contrib/pngminim/encoder/makefile
+++ b/contrib/pngminim/encoder/makefile
@@ -14,7 +14,7 @@ LD=$(CC)
 RM=rm -f
 COPY=cp

-CFLAGS=-DPNG_USER_CONFIG -DNO_GZIP -I. -O1
+CFLAGS=-DPNG_USER_CONFIG -DZ_SOLO -DNO_GZIP -I. -O1

 C=.c
 O=.o
--- a/contrib/pngminim/preader/makefile
+++ b/contrib/pngminim/preader/makefile
@@ -30,7 +30,7 @@ XLIB = -L/usr/X11R6/lib -lX11
 #LIBS = $(XLIB)
 LIBS = $(XLIB) -lm                      #platforms that need libm

-CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DNO_GZIP -I. $(XINC) -O1
+CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP -I. $(XINC) -O1

 C=.c
 O=.o
--- a/contrib/pngsuite/README
+++ b/contrib/pngsuite/README
@@ -1,7 +1,8 @@

 pngsuite
 --------
-(c) Willem van Schaik, 1999, 2011
+(c) Willem van Schaik, 1999, 2011, 2012
+Two images are by Glenn Randers-Pehrson, 2012

 Permission to use, copy, modify, and distribute these images for any
 purpose and without fee is hereby granted.
@@ -38,6 +39,8 @@ can use them to test the proper functioning of PNG software.
    basn6a08.png   8-bit RGBA
    basn6a16.png  16-bit RGBA

+    ftbbn0g01.png  1-bit grayscale, black bKGD
+    ftbbn0g02.png  2-bit grayscale, black bKGD
    ftbbn0g04.png  4-bit grayscale, black bKGD
    ftbbn2c16.png 16-bit truecolor, black bKGD
    ftbbn3p08.png  8-bit paletted, black bKGD
--- a/contrib/pngsuite/ftbbn0g01.png
+++ b/contrib/pngsuite/ftbbn0g01.png
--- a/contrib/pngsuite/ftbbn0g02.png
+++ b/contrib/pngsuite/ftbbn0g02.png
--- a/contrib/pngsuite/ftbbn0g04.png
+++ b/contrib/pngsuite/ftbbn0g04.png
--- a/contrib/pngsuite/ftbwn0g16.png
+++ b/contrib/pngsuite/ftbwn0g16.png
--- a/contrib/pngsuite/ftp0n0g08.png
+++ b/contrib/pngsuite/ftp0n0g08.png
--- a/contrib/sRGBtables/cvtcolor.c
+++ b/contrib/sRGBtables/cvtcolor.c
@@ -1,188 +0,0 @@
-/*-
- * convert.c
- *
- * Convert 8-bit sRGB or 16-bit linear values to another format.
- *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 2011 Written by John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-#define _ISOC99_SOURCE 1
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <stdio.h>
-
-#include <fenv.h>
-
-#include "sRGB.h"
-
-static void
-usage(const char *prog)
-{
-   fprintf(stderr,
-      "%s: usage: %s [-linear|-sRGB] [-gray|-color] component{1,4}\n",
-      prog, prog);
-   exit(1);
-}
-
-unsigned long
-component(const char *prog, const char *arg, int issRGB)
-{
-   char *ep;
-   unsigned long c = strtoul(arg, &ep, 0);
-
-   if (ep <= arg || *ep || c > 65535 || (issRGB && c > 255))
-   {
-      fprintf(stderr, "%s: %s: invalid component value (%lu)\n", prog, arg, c);
-      usage(prog);
-   }
-
-   return c;
-}
-
-int
-main(int argc, const char **argv)
-{
-   const char *prog = *argv++;
-   int to_linear = 0, to_gray = 0, to_color = 0;
-   int channels = 0;
-   double c[4];
-
-   /* FE_TONEAREST is the IEEE754 round to nearest, preferring even, mode; i.e.
-    * everything rounds to the nearest value except that '.5' rounds to the
-    * nearest even value.
-    */
-   fesetround(FE_TONEAREST);
-
-   c[3] = c[2] = c[1] = c[0] = 0;
-
-   while (--argc > 0 && **argv == '-')
-   {
-      const char *arg = 1+*argv++;
-
-      if (strcmp(arg, "sRGB") == 0)
-         to_linear = 0;
-
-      else if (strcmp(arg, "linear") == 0)
-         to_linear = 1;
-
-      else if (strcmp(arg, "gray") == 0)
-         to_gray = 1, to_color = 0;
-
-      else if (strcmp(arg, "color") == 0)
-         to_gray = 0, to_color = 1;
-
-      else
-         usage(prog);
-   }
-
-   switch (argc)
-   {
-      default:
-         usage(prog);
-         break;
-
-      case 4:
-         c[3] = component(prog, argv[3], to_linear);
-         ++channels;
-      case 3:
-         c[2] = component(prog, argv[2], to_linear);
-         ++channels;
-      case 2:
-         c[1] = component(prog, argv[1], to_linear);
-         ++channels;
-      case 1:
-         c[0] = component(prog, argv[0], to_linear);
-         ++channels;
-         break;
-      }
-
-   if (to_linear)
-   {
-      int i;
-      int components = channels;
-
-      if ((components & 1) == 0)
-         --components;
-
-      for (i=0; i<components; ++i) c[i] = linear_from_sRGB(c[i] / 255);
-      if (components < channels)
-         c[components] = c[components] / 255;
-   }
-
-   else
-   {
-      int i;
-      for (i=0; i<4; ++i) c[i] /= 65535;
-
-      if ((channels & 1) == 0)
-      {
-         double alpha = c[channels-1];
-
-         if (alpha > 0)
-            for (i=0; i<channels-1; ++i) c[i] /= alpha;
-         else
-            for (i=0; i<channels-1; ++i) c[i] = 1;
-      }
-   }
-
-   if (to_gray)
-   {
-      if (channels < 3)
-      {
-         fprintf(stderr, "%s: too few channels (%d) for -gray\n",
-            prog, channels);
-         usage(prog);
-      }
-
-      c[0] = YfromRGB(c[0], c[1], c[2]);
-      channels -= 2;
-   }
-
-   if (to_color)
-   {
-      if (channels > 2)
-      {
-         fprintf(stderr, "%s: too many channels (%d) for -color\n",
-            prog, channels);
-         usage(prog);
-      }
-
-      c[3] = c[1]; /* alpha, if present */
-      c[2] = c[1] = c[0];
-   }
-
-   if (to_linear)
-   {
-      int i;
-      if ((channels & 1) == 0)
-      {
-         double alpha = c[channels-1];
-         for (i=0; i<channels-1; ++i) c[i] *= alpha;
-      }
-
-      for (i=0; i<channels; ++i) c[i] = nearbyint(c[i] * 65535);
-   }
-
-   else /* to sRGB */
-   {
-      int i = (channels+1)&~1;
-      while (--i >= 0)
-         c[i] = sRGB_from_linear(c[i]);
-
-      for (i=0; i<channels; ++i) c[i] = nearbyint(c[i] * 255);
-   }
-
-   {
-      int i;
-      for (i=0; i<channels; ++i) printf(" %g", c[i]);
-   }
-   printf("\n");
-
-   return 0;
-}
--- a/contrib/sRGBtables/makesRGB.c
+++ b/contrib/sRGBtables/makesRGB.c
@@ -1,430 +0,0 @@
-/* makesRGB.c -- build sRGB-to-linear and linear-to-sRGB conversion tables
- *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 2011 John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Make a table to convert 8-bit sRGB encoding values into the closest 16-bit
- * linear value.
- *
- * Make two tables to take a linear value scaled to 255*65535 and return an
- * approximation to the 8-bit sRGB encoded value.  Calculate the error in these
- * tables and display it.
- */
-#define _C99_SOURCE 1
-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
-
-/* pngpriv.h includes the definition of 'PNG_sRGB_FROM_LINEAR' which is required
- * to verify the actual code.
- */
-#include "../../pngpriv.h"
-
-#include "sRGB.h"
-
-/* The tables are declared 'const' in pngpriv.h, so this redefines the tables to
- * be used.
- */
-#define png_sRGB_table sRGB_table
-#define png_sRGB_base sRGB_base
-#define png_sRGB_delta sRGB_delta
-
-static png_uint_16 png_sRGB_table[256];
-static png_uint_16 png_sRGB_base[512];
-static png_byte png_sRGB_delta[512];
-
-static const unsigned int max_input = 255*65535;
-
-double
-fsRGB(double l)
-{
-   return sRGB_from_linear(l/max_input);
-}
-
-double
-sRGB(unsigned int i)
-{
-   return fsRGB(i);
-}
-
-double
-finvsRGB(unsigned int i)
-{
-   return 65535 * linear_from_sRGB(i/255.);
-}
-
-png_uint_16
-invsRGB(unsigned int i)
-{
-   unsigned int x = nearbyint(finvsRGB(i));
-
-   if (x > 65535)
-   {
-      fprintf(stderr, "invsRGB(%u) overflows to %u\n", i, x);
-      exit(1);
-   }
-
-   return (png_uint_16)x;
-}
-
-int
-main(int argc, char **argv)
-{
-   unsigned int i, i16, ibase;
-   double min_error = 0;
-   double max_error = 0;
-   double min_error16 = 0;
-   double max_error16 = 0;
-   double adjust;
-   double adjust_lo = 0.4, adjust_hi = 0.6, adjust_mid = 0.5;
-   unsigned int ec_lo = 0, ec_hi = 0, ec_mid = 0;
-   unsigned int error_count = 0;
-   unsigned int error_count16 = 0;
-   int test_only = 0;
-
-   if (argc > 1)
-      test_only = strcmp("--test", argv[1]) == 0;
-
-   /* Initialize the encoding table first. */
-   for (i=0; i<256; ++i)
-   {
-      png_sRGB_table[i] = invsRGB(i);
-   }
-
-   /* Now work out the decoding tables (this is where the error comes in because
-    * there are 512 set points and 512 straight lines between them.)
-    */
-   for (;;)
-   {
-      if (ec_lo == 0)
-         adjust = adjust_lo;
-
-      else if (ec_hi == 0)
-         adjust = adjust_hi;
-
-      else if (ec_mid == 0)
-         adjust = adjust_mid;
-
-      else if (ec_mid < ec_hi)
-         adjust = (adjust_mid + adjust_hi)/2;
-
-      else if (ec_mid < ec_lo)
-         adjust = (adjust_mid + adjust_lo)/2;
-
-      else
-      {
-         fprintf(stderr, "not reached: %u .. %u .. %u\n", ec_lo, ec_mid, ec_hi);
-         exit(1);
-      }
-
-      /* Calculate the table using the current 'adjust' */
-      for (i=0; i<=511; ++i)
-      {
-         double lo = 255 * sRGB(i << 15);
-         double hi = 255 * sRGB((i+1) << 15);
-         unsigned int calc;
-
-         calc = nearbyint((lo+adjust) * 256);
-         if (calc > 65535)
-         {
-            fprintf(stderr, "table[%d][0]: overflow %08x (%d)\n", i, calc,
-               calc);
-            exit(1);
-         }
-         png_sRGB_base[i] = calc;
-
-         calc = nearbyint((hi-lo) * 32);
-         if (calc > 255)
-         {
-            fprintf(stderr, "table[%d][1]: overflow %08x (%d)\n", i, calc,
-               calc);
-            exit(1);
-         }
-         png_sRGB_delta[i] = calc;
-      }
-
-      /* Check the 16-bit linear values alone: */
-      error_count16 = 0;
-      for (i16=0; i16 <= 65535; ++i16)
-      {
-         unsigned int i = 255*i16;
-         unsigned int iexact = nearbyint(255*sRGB(i));
-         unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
-         if (icalc != iexact)
-            ++error_count16;
-      }
-
-      /* Now try changing the adjustment. */
-      if (ec_lo == 0)
-         ec_lo = error_count16;
-
-      else if (ec_hi == 0)
-         ec_hi = error_count16;
-
-      else if (ec_mid == 0)
-      {
-         ec_mid = error_count16;
-         printf("/* initial error counts: %u .. %u .. %u */\n", ec_lo, ec_mid,
-            ec_hi);
-      }
-
-      else if (error_count16 < ec_mid)
-      {
-         printf("/* adjust (mid ): %f: %u -> %u */\n", adjust, ec_mid,
-            error_count16);
-         ec_mid = error_count16;
-         adjust_mid = adjust;
-      }
-
-      else if (adjust < adjust_mid && error_count16 < ec_lo)
-      {
-         printf("/* adjust (low ): %f: %u -> %u */\n", adjust, ec_lo,
-            error_count16);
-         ec_lo = error_count16;
-         adjust_lo = adjust;
-      }
-
-      else if (adjust > adjust_mid && error_count16 < ec_hi)
-      {
-         printf("/* adjust (high): %f: %u -> %u */\n", adjust, ec_hi,
-            error_count16);
-         ec_hi = error_count16;
-         adjust_hi = adjust;
-      }
-
-      else
-      {
-         adjust = adjust_mid;
-         printf("/* adjust: %f: %u */\n", adjust, ec_mid);
-         break;
-      }
-   }
-
-   /* For each entry in the table try to adjust it to minimize the error count
-    * in that entry.  Each entry corresponds to 128 input values.
-    */
-   for (ibase=0; ibase<65536; ibase+=128)
-   {
-      png_uint_16 base = png_sRGB_base[ibase >> 7], trybase = base, ob=base;
-      png_byte delta = png_sRGB_delta[ibase >> 7], trydelta = delta, od=delta;
-      unsigned int ecbase = 0, eco;
-
-      for (;;)
-      {
-         png_sRGB_base[ibase >> 7] = trybase;
-         png_sRGB_delta[ibase >> 7] = trydelta;
-
-         /* Check the 16-bit linear values alone: */
-         error_count16 = 0;
-         for (i16=ibase; i16 < ibase+128; ++i16)
-         {
-            unsigned int i = 255*i16;
-            unsigned int iexact = nearbyint(255*sRGB(i));
-            unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
-            if (icalc != iexact)
-               ++error_count16;
-         }
-
-         if (error_count16 == 0)
-            break;
-
-         if (ecbase == 0)
-         {
-            eco = ecbase = error_count16;
-            ++trybase; /* First test */
-         }
-
-         else if (error_count16 < ecbase)
-         {
-            if (trybase > base)
-            {
-               base = trybase;
-               ++trybase;
-            }
-            else if (trybase < base)
-            {
-               base = trybase;
-               --trybase;
-            }
-            else if (trydelta > delta)
-            {
-               delta = trydelta;
-               ++trydelta;
-            }
-            else if (trydelta < delta)
-            {
-               delta = trydelta;
-               --trydelta;
-            }
-            else
-            {
-               fprintf(stderr, "makesRGB: impossible\n");
-               exit(1);
-            }
-            ecbase = error_count16;
-         }
-
-         else
-         {
-            if (trybase > base)
-               trybase = base-1;
-            else if (trybase < base)
-            {
-               trybase = base;
-               ++trydelta;
-            }
-            else if (trydelta > delta)
-               trydelta = delta-1;
-            else if (trydelta < delta)
-               break; /* end of tests */
-         }
-      }
-
-      png_sRGB_base[ibase >> 7] = base;
-      png_sRGB_delta[ibase >> 7] = delta;
-      if (base != ob || delta != od)
-      {
-         printf("/* table[%u]={%u,%u} -> {%u,%u} %u -> %u errors */\n",
-            ibase>>7, ob, od, base, delta, eco, ecbase);
-      }
-      else if (0)
-         printf("/* table[%u]={%u,%u} %u errors */\n", ibase>>7, ob, od,
-            ecbase);
-   }
-
-   /* Only do the full (slow) test at the end: */
-   min_error = -.4999;
-   max_error = .4999;
-   error_count = 0;
-
-   for (i=0; i <= max_input; ++i)
-   {
-      unsigned int iexact = nearbyint(255*sRGB(i));
-      unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
-      if (icalc != iexact)
-      {
-         double err = 255*sRGB(i) - icalc;
-
-         if (err > (max_error+.001) || err < (min_error-.001))
-         {
-            printf(
-               "/* 0x%08x: exact: %3d, got: %3d [tables: %08x, %08x] (%f) */\n",
-               i, iexact, icalc, png_sRGB_base[i>>15],
-               png_sRGB_delta[i>>15], err);
-         }
-
-         ++error_count;
-         if (err > max_error)
-            max_error = err;
-         else if (err < min_error)
-            min_error = err;
-      }
-   }
-
-   /* Re-check the 16-bit cases too, including the warning if there is an error
-    * bigger than 1.
-    */
-   error_count16 = 0;
-   max_error16 = 0;
-   min_error16 = 0;
-   for (i16=0; i16 <= 65535; ++i16)
-   {
-      unsigned int i = 255*i16;
-      unsigned int iexact = nearbyint(255*sRGB(i));
-      unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
-      if (icalc != iexact)
-      {
-         double err = 255*sRGB(i) - icalc;
-
-         ++error_count16;
-         if (err > max_error16)
-            max_error16 = err;
-         else if (err < min_error16)
-            min_error16 = err;
-
-         if (abs(icalc - iexact) > 1)
-            printf(
-               "/* 0x%04x: exact: %3d, got: %3d [tables: %08x, %08x] (%f) */\n",
-               i16, iexact, icalc, png_sRGB_base[i>>15],
-               png_sRGB_delta[i>>15], err);
-      }
-   }
-
-   /* Check the round trip for each 8-bit sRGB value. */
-   for (i16=0; i16 <= 255; ++i16)
-   {
-      unsigned int i = 255 * png_sRGB_table[i16];
-      unsigned int iexact = nearbyint(255*sRGB(i));
-      unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
-      if (i16 != iexact)
-      {
-         fprintf(stderr, "8-bit rounding error: %d -> %d\n", i16, iexact);
-         exit(1);
-      }
-
-      if (icalc != i16)
-      {
-         double finv = finvsRGB(i16);
-
-         printf("/* 8-bit roundtrip error: %d -> %f -> %d(%f) */\n",
-            i16, finv, icalc, fsRGB(255*finv));
-      }
-   }
-
-
-   printf("/* error: %g - %g, %u (%g%%) of readings inexact */\n",
-      min_error, max_error, error_count, (100.*error_count)/max_input);
-   printf("/* 16-bit error: %g - %g, %u (%g%%) of readings inexact */\n",
-      min_error16, max_error16, error_count16, (100.*error_count16)/65535);
-
-   if (!test_only)
-   {
-      printf("PNG_CONST png_uint_16 png_sRGB_table[256] =\n{\n   ");
-      for (i=0; i<255; )
-      {
-         do
-         {
-            printf("%d,", png_sRGB_table[i++]);
-         }
-         while ((i & 0x7) != 0 && i<255);
-         if (i<255) printf("\n   ");
-      }
-      printf("%d\n};\n\n", png_sRGB_table[i]);
-
-
-      printf("PNG_CONST png_uint_16 png_sRGB_base[512] =\n{\n   ");
-      for (i=0; i<511; )
-      {
-         do
-         {
-            printf("%d,", png_sRGB_base[i++]);
-         }
-         while ((i & 0x7) != 0 && i<511);
-         if (i<511) printf("\n   ");
-      }
-      printf("%d\n};\n\n", png_sRGB_base[i]);
-
-      printf("PNG_CONST png_byte png_sRGB_delta[512] =\n{\n   ");
-      for (i=0; i<511; )
-      {
-         do
-         {
-            printf("%d,", png_sRGB_delta[i++]);
-         }
-         while ((i & 0xf) != 0 && i<511);
-         if (i<511) printf("\n   ");
-      }
-      printf("%d\n};\n\n", png_sRGB_delta[i]);
-   }
-
-   return 0;
-}
--- a/contrib/sRGBtables/sRGB.h
+++ b/contrib/sRGBtables/sRGB.h
@@ -1,48 +0,0 @@
-/*-
- * sRGB.h
- *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 2011 John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Utility file; not actually a header, this contains definitions of sRGB
- * calculation functions for inclusion in those test programs that need them.
- *
- * All routines take and return a floating point value in the range
- * 0 to 1.0, doing a calculation according to the sRGB specification
- * (in fact the source of the numbers is the wikipedia article at
- * http://en.wikipedia.org/wiki/SRGB).
- */
-static double
-sRGB_from_linear(double l)
-{
-   if (l <= 0.0031308)
-      l *= 12.92;
-
-   else
-      l = 1.055 * pow(l, 1/2.4) - 0.055;
-
-   return l;
-}
-
-static double
-linear_from_sRGB(double s)
-{
-   if (s <= 0.04045)
-      return s / 12.92;
-
-   else
-      return pow((s+0.055)/1.055, 2.4);
-}
-
-static double
-YfromRGB(double r, double g, double b)
-{
-   /* Use the sRGB (rounded) coefficients for Rlinear, Glinear, Blinear to get
-    * the CIE Y value (also linear).
-    */
-   return 0.2126 * r + 0.7152 * g + 0.0722 * b;
-}
--- a/contrib/visupng/PngFile.c
+++ b/contrib/visupng/PngFile.c
@@ -13,6 +13,7 @@
 #include <commdlg.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <zlib.h>

 #include "png.h"
 #include "pngfile.h"
--- a/contrib/visupng/PngFile.h
+++ b/contrib/visupng/PngFile.h
@@ -17,7 +17,7 @@ void PngFileInitialize (HWND hwnd) ;
 BOOL PngFileOpenDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName) ;
 BOOL PngFileSaveDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName) ;

-BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData, 
+BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData,
                   int *piWidth, int *piHeight, int *piChannels, png_color *pBkgColor);
 BOOL PngSaveImage (PTSTR pstrFileName, png_byte *pDiData,
                   int iWidth, int iHeight, png_color BkgColor);
--- a/contrib/visupng/VisualPng.c
+++ b/contrib/visupng/VisualPng.c
@@ -27,6 +27,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <windows.h>
+#include <zlib.h>

 /* application includes */

--- a/255
+++ b/255
@@ -1,10 +1,9 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects

-scriptversion=2009-04-28.21; # UTC
+scriptversion=2012-07-12.20; # UTC

-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
-# Software Foundation, Inc.
+# Copyright (C) 1999-2012 Free Software Foundation, Inc.

 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,7 +27,7 @@ scriptversion=2009-04-28.21; # UTC

 case $1 in
  '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
     exit 1;
     ;;
  -h | --h*)
@@ -40,11 +39,11 @@ as side-effects.

 Environment variables:
  depmode     Dependency tracking mode.
-  source      Source file read by `PROGRAMS ARGS'.
-  object      Object file output by `PROGRAMS ARGS'.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
  DEPDIR      directory where to store dependencies.
  depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputing dependencies.
+  tmpdepfile  Temporary file to use when outputting dependencies.
  libtool     Whether libtool is used (yes/no).

 Report bugs to <bug-automake@gnu.org>.
@@ -57,6 +56,12 @@ EOF
    ;;
 esac

+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+
 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  echo "depcomp: Variables source, object and depmode must be set" 1>&2
  exit 1
@@ -69,6 +74,9 @@ tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}

 rm -f "$tmpdepfile"

+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
 # Some modes work just like other modes, but use different flags.  We
 # parameterize here, but still list the modes in the big case below,
 # to make depend.m4 easier to write.  Note that we *cannot* use a case
@@ -90,10 +98,24 @@ if test "$depmode" = msvcmsys; then
   # This is just like msvisualcpp but w/o cygpath translation.
   # Just convert the backslash-escaped backslashes to single forward
   # slashes to satisfy depend.m4
-   cygpath_u="sed s,\\\\\\\\,/,g"
+   cygpath_u='sed s,\\\\,/,g'
   depmode=msvisualcpp
 fi

+if test "$depmode" = msvc7msys; then
+   # This is just like msvc7 but w/o cygpath translation.
+   # Just convert the backslash-escaped backslashes to single forward
+   # slashes to satisfy depend.m4
+   cygpath_u='sed s,\\\\,/,g'
+   depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+   # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+   gccflag=-qmakedep=gcc,-MF
+   depmode=gcc
+fi
+
 case "$depmode" in
 gcc3)
 ## gcc 3 implements dependency tracking that does exactly what
@@ -123,13 +145,17 @@ gcc3)
  ;;

 gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
 ## There are various ways to get dependency output from gcc.  Here's
 ## why we pick this rather obscure method:
 ## - Don't want to use -MD because we'd like the dependencies to end
 ##   up in a subdir.  Having to rename by hand is ugly.
 ##   (We might end up doing this anyway to support other compilers.)
 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
 ## - Using -M directly means running the compiler twice (even worse
 ##   than renaming).
  if test -z "$gccflag"; then
@@ -148,20 +174,21 @@ gcc)
 ## The second -e expression handles DOS-style file names with drive letters.
  sed -e 's/^[^:]*: / /' \
      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
+## This next piece of magic avoids the "deleted header file" problem.
 ## The problem is that when a header file which appears in a .P file
 ## is deleted, the dependency causes make to die (because there is
 ## typically no way to rebuild the header).  We avoid this by adding
 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 ## this for us directly.
-  tr ' ' '
-' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'.  On the theory
+  tr ' ' "$nl" < "$tmpdepfile" |
+## Some versions of gcc put a space before the ':'.  On the theory
 ## that the space means something, we add a space to the output as
-## well.
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+    sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+      | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

@@ -193,18 +220,15 @@ sgi)
    # clever and replace this with sed code, as IRIX sed won't handle
    # lines with more than a fixed number of characters (4096 in
    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like `#:fec' to the end of the
+    # the IRIX cc adds comments like '#:fec' to the end of the
    # dependency line.
-    tr ' ' '
-' < "$tmpdepfile" \
+    tr ' ' "$nl" < "$tmpdepfile" \
    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
-    tr '
-' ' ' >> "$depfile"
+    tr "$nl" ' ' >> "$depfile"
    echo >> "$depfile"

    # The second pass generates a dummy entry for each header file.
-    tr ' ' '
-' < "$tmpdepfile" \
+    tr ' ' "$nl" < "$tmpdepfile" \
   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
   >> "$depfile"
  else
@@ -216,10 +240,17 @@ sgi)
  rm -f "$tmpdepfile"
  ;;

+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
 aix)
  # The C for AIX Compiler uses -M and outputs the dependencies
  # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts `$object:' at the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
  # start of each line; $object doesn't have directory information.
  # Version 6 uses the directory in both cases.
  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
@@ -249,12 +280,11 @@ aix)
    test -f "$tmpdepfile" && break
  done
  if test -f "$tmpdepfile"; then
-    # Each line is of the form `foo.o: dependent.h'.
+    # Each line is of the form 'foo.o: dependent.h'.
    # Do two passes, one to just change these to
-    # `$object: dependent.h' and one to simply `dependent.h:'.
+    # '$object: dependent.h' and one to simply 'dependent.h:'.
    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
-    # That's a tab and a space in the [].
-    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+    sed -e 's,^.*\.[a-z]*:['"$tab"' ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
  else
    # The sourcefile does not contain any dependencies, so just
    # store a dummy comment line, to avoid errors with the Makefile
@@ -265,23 +295,26 @@ aix)
  ;;

 icc)
-  # Intel's C compiler understands `-MD -MF file'.  However on
-  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+  # Intel's C compiler anf tcc (Tiny C Compiler) understand '-MD -MF file'.
+  # However on
+  #    $CC -MD -MF foo.d -c -o sub/foo.o sub/foo.c
  # ICC 7.0 will fill foo.d with something like
  #    foo.o: sub/foo.c
  #    foo.o: sub/foo.h
-  # which is wrong.  We want:
+  # which is wrong.  We want
  #    sub/foo.o: sub/foo.c
  #    sub/foo.o: sub/foo.h
  #    sub/foo.c:
  #    sub/foo.h:
  # ICC 7.1 will output
  #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using \ :
+  # and will wrap long lines using '\':
  #    foo.o: sub/foo.c ... \
  #     sub/foo.h ... \
  #     ...
-
+  # tcc 0.9.26 (FIXME still under development at the moment of writing)
+  # will emit a similar output, but also prepend the continuation lines
+  # with horizontal tabulation characters.
  "$@" -MD -MF "$tmpdepfile"
  stat=$?
  if test $stat -eq 0; then :
@@ -290,6 +323,85 @@ icc)
    exit $stat
  fi
  rm -f "$depfile"
+  # Each line is of the form 'foo.o: dependent.h',
+  # or 'foo.o: dep1.h dep2.h \', or ' dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # '$object: dependent.h' and one to simply 'dependent.h:'.
+  sed -e "s/^[ $tab][ $tab]*/  /" -e "s,^[^:]*:,$object :," \
+    < "$tmpdepfile" > "$depfile"
+  sed '
+    s/[ '"$tab"'][ '"$tab"']*/ /g
+    s/^ *//
+    s/ *\\*$//
+    s/^[^:]*: *//
+    /^$/d
+    /:$/d
+    s/$/ :/
+  ' < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using '\' :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  base=`echo "$source" | sed -e 's|^.*/||' -e 's/\.[-_a-zA-Z0-9]*$//'`
+  tmpdepfile="$base.d"
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir="$base.d-lock"
+  trap "echo '$0: caught signal, cleaning up...' >&2; rm -rf $lockdir" 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0 ; do
+    # mkdir is a portable test-and-set.
+    if mkdir $lockdir 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rm -rf $lockdir
+      break
+    else
+      ## the lock is being held by a different process,
+      ## wait until the winning process is done or we timeout
+      while test -d $lockdir && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
  # Each line is of the form `foo.o: dependent.h',
  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
  # Do two passes, one to just change these to
@@ -334,7 +446,7 @@ hp2)
  done
  if test -f "$tmpdepfile"; then
    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
-    # Add `dependent.h:' lines.
+    # Add 'dependent.h:' lines.
    sed -ne '2,${
 	       s/^ *//
 	       s/ \\*$//
@@ -349,9 +461,9 @@ hp2)

 tru64)
   # The Tru64 compiler uses -MD to generate dependencies as a side
-   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-   # dependencies in `foo.d' instead, so we check for that too.
+   # dependencies in 'foo.d' instead, so we check for that too.
   # Subdirectories are respected.
   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
   test "x$dir" = "x$object" && dir=
@@ -397,14 +509,59 @@ tru64)
   done
   if test -f "$tmpdepfile"; then
      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
-      # That's a tab and a space in the [].
-      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+      sed -e 's,^.*\.[a-z]*:['"$tab"' ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
   else
      echo "#dummy" > "$depfile"
   fi
   rm -f "$tmpdepfile"
   ;;

+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test "$stat" = 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
 #nosideeffect)
  # This comment above is used by automake to tell side-effect
  # dependency tracking mechanisms from slower ones.
@@ -422,7 +579,7 @@ dashmstdout)
    shift
  fi

-  # Remove `-o $object'.
+  # Remove '-o $object'.
  IFS=" "
  for arg
  do
@@ -442,15 +599,14 @@ dashmstdout)
  done

  test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for `:'
+  # Require at least two characters before searching for ':'
  # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
  "$@" $dashmflag |
-    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+    sed 's:^['"$tab"' ]*[^:'"$tab"' ][^:][^:]*\:['"$tab"' ]*:'"$object"'\: :' > "$tmpdepfile"
  rm -f "$depfile"
  cat < "$tmpdepfile" > "$depfile"
-  tr ' ' '
-' < "$tmpdepfile" | \
+  tr ' ' "$nl" < "$tmpdepfile" | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
@@ -503,9 +659,10 @@ makedepend)
  touch "$tmpdepfile"
  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  sed '1,2d' "$tmpdepfile" | tr ' ' '
-' | \
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+  sed '1,2d' "$tmpdepfile" | tr ' ' "$nl" | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
@@ -525,7 +682,7 @@ cpp)
    shift
  fi

-  # Remove `-o $object'.
+  # Remove '-o $object'.
  IFS=" "
  for arg
  do
@@ -594,8 +751,8 @@ msvisualcpp)
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
-  echo "	" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;
--- a/example.c
+++ b/example.c
@@ -2,11 +2,10 @@
 #if 0 /* in case someone actually tries to compile this */

 /* example.c - an example of using libpng
- * Last changed in libpng 1.5.6 [November 3, 2011]
- * This file has been placed in the public domain by the authors.
- * Maintained 1998-2011 Glenn Randers-Pehrson
- * Maintained 1996, 1997 Andreas Dilger)
- * Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
+ * Last changed in libpng 1.5.10 [March 8, 2012]
+ * Maintained 1998-2012 Glenn Randers-Pehrson
+ * Maintained 1996, 1997 Andreas Dilger
+ * Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
 */

 /* This is an example of how to use libpng to read and write PNG files.
@@ -14,6 +13,8 @@
 * read it, do so first.  This was designed to be a starting point of an
 * implementation.  This is not officially part of libpng, is hereby placed
 * in the public domain, and therefore does not require a copyright notice.
+ * To the extent possible under law, the authors have waived all copyright and
+ * related or neighboring rights to this file.
 *
 * This file does not currently compile, because it is missing certain
 * parts, like allocating memory to hold an image.  You will have to
@@ -694,25 +695,38 @@ void write_png(char *file_name /* , ... other image information ... */)
   png_set_gAMA(png_ptr, info_ptr, gamma);

   /* Optionally write comments into the image */
-   text_ptr[0].key = "Title";
-   text_ptr[0].text = "Mona Lisa";
-   text_ptr[0].compression = PNG_TEXT_COMPRESSION_NONE;
-   text_ptr[0].itxt_length = 0;
-   text_ptr[0].lang = NULL;
-   text_ptr[0].lang_key = NULL;
-   text_ptr[1].key = "Author";
-   text_ptr[1].text = "Leonardo DaVinci";
-   text_ptr[1].compression = PNG_TEXT_COMPRESSION_NONE;
-   text_ptr[1].itxt_length = 0;
-   text_ptr[1].lang = NULL;
-   text_ptr[1].lang_key = NULL;
-   text_ptr[2].key = "Description";
-   text_ptr[2].text = "<long text>";
-   text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt;
-   text_ptr[2].itxt_length = 0;
-   text_ptr[2].lang = NULL;
-   text_ptr[2].lang_key = NULL;
-   png_set_text(png_ptr, info_ptr, text_ptr, 3);
+   {
+      png_text text_ptr[3];
+
+      char key0[]="Title";
+      char text0[]="Mona Lisa";
+      text_ptr[0].key = key0;
+      text_ptr[0].text = text0;
+      text_ptr[0].compression = PNG_TEXT_COMPRESSION_NONE;
+      text_ptr[0].itxt_length = 0;
+      text_ptr[0].lang = NULL;
+      text_ptr[0].lang_key = NULL;
+
+      char key1[]="Author";
+      char text1[]="Leonardo DaVinci";
+      text_ptr[1].key = key1;
+      text_ptr[1].text = text1;
+      text_ptr[1].compression = PNG_TEXT_COMPRESSION_NONE;
+      text_ptr[1].itxt_length = 0;
+      text_ptr[1].lang = NULL;
+      text_ptr[1].lang_key = NULL;
+
+      char key2[]="Description";
+      char text2[]="<long text>";
+      text_ptr[2].key = key2;
+      text_ptr[2].text = text2;
+      text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt;
+      text_ptr[2].itxt_length = 0;
+      text_ptr[2].lang = NULL;
+      text_ptr[2].lang_key = NULL;
+
+      png_set_text(write_ptr, write_info_ptr, text_ptr, 3);
+   }

   /* Other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs */

@@ -785,12 +799,16 @@ void write_png(char *file_name /* , ... other image information ... */)
    * use the first method if you aren't handling interlacing yourself.
    */
   png_uint_32 k, height, width;
-   png_byte image[height][width*bytes_per_pixel];
+
+   /* In this example, "image" is a one-dimensional array of bytes */
+   png_byte image[height*width*bytes_per_pixel];
+
   png_bytep row_pointers[height];

   if (height > PNG_UINT_32_MAX/png_sizeof(png_bytep))
     png_error (png_ptr, "Image is too tall to process in memory");

+   /* Set up pointers into your "image" byte array */
   for (k = 0; k < height; k++)
     row_pointers[k] = image + k*width*bytes_per_pixel;

--- a/35
+++ b/35
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile

-scriptversion=2009-04-28.21; # UTC
+scriptversion=2011-11-20.07; # UTC

 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -35,7 +35,7 @@ scriptversion=2009-04-28.21; # UTC
 # FSF changes to this file are in the public domain.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
+# 'make' implicit rules from creating a file called install from it
 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
@@ -156,6 +156,10 @@ while test $# -ne 0; do
    -s) stripcmd=$stripprog;;

    -t) dst_arg=$2
+	# Protect names problematic for 'test' and other utilities.
+	case $dst_arg in
+	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+	esac
 	shift;;

    -T) no_target_directory=true;;
@@ -186,6 +190,10 @@ if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
    fi
    shift # arg
    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
  done
 fi

@@ -194,13 +202,17 @@ if test $# -eq 0; then
    echo "$0: no input file specified." >&2
    exit 1
  fi
-  # It's OK to call `install-sh -d' without argument.
+  # It's OK to call 'install-sh -d' without argument.
  # This can happen when creating conditional directories.
  exit 0
 fi

 if test -z "$dir_arg"; then
-  trap '(exit $?); exit' 1 2 13 15
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15

  # Set umask so as not to create temps with too-generous modes.
  # However, 'strip' requires both read and write access to temps.
@@ -228,9 +240,9 @@ fi

 for src
 do
-  # Protect names starting with `-'.
+  # Protect names problematic for 'test' and other utilities.
  case $src in
-    -*) src=./$src;;
+    -* | [=\(\)!]) src=./$src;;
  esac

  if test -n "$dir_arg"; then
@@ -252,12 +264,7 @@ do
      echo "$0: no destination specified." >&2
      exit 1
    fi
-
    dst=$dst_arg
-    # Protect names starting with `-'.
-    case $dst in
-      -*) dst=./$dst;;
-    esac

    # If destination is a directory, append the input filename; won't work
    # if double slashes aren't ignored.
@@ -347,7 +354,7 @@ do
 	      if test -z "$dir_arg" || {
 		   # Check for POSIX incompatibilities with -m.
 		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-		   # other-writeable bit of parent directory when it shouldn't.
+		   # other-writable bit of parent directory when it shouldn't.
 		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
 		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
 		   case $ls_ld_tmpdir in
@@ -385,7 +392,7 @@ do

      case $dstdir in
 	/*) prefix='/';;
-	-*) prefix='./';;
+	[-=\(\)!]*) prefix='./';;
 	*)  prefix='';;
      esac

@@ -403,7 +410,7 @@ do

      for d
      do
-	test -z "$d" && continue
+	test X"$d" = X && continue

 	prefix=$prefix$d
 	if test -d "$prefix"; then
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,9 +1,9 @@
-libpng-manual.txt - A description on how to use and modify libpng
+Libpng-manual.txt - A description on how to use and modify libpng

- libpng version 1.5.7beta05 - November 21, 2011
+ libpng version 1.5.14beta08 - January 10, 2013
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
- Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ Copyright (c) 1998-2012 Glenn Randers-Pehrson

 This document is released under the libpng license.
 For conditions of distribution and use, see the disclaimer
@@ -11,9 +11,9 @@ libpng-manual.txt - A description on how to use and modify libpng

 Based on:

- libpng versions 0.97, January 1998, through 1.5.7beta05 - November 21, 2011
+ libpng versions 0.97, January 1998, through 1.5.14beta08 - January 10, 2013
 Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ Copyright (c) 1998-2012 Glenn Randers-Pehrson

 libpng 1.0 beta 6  version 0.96 May 28, 1997
 Updated and distributed by Andreas Dilger
@@ -48,7 +48,7 @@ of reducing the amount of time and effort it takes to support the PNG
 file format in application programs.

 The PNG specification (second edition), November 2003, is available as
-a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2003 (E)) at
+a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at
 <http://www.w3.org/TR/2003/REC-PNG-20031110/
 The W3C and ISO documents have identical technical content.

@@ -141,8 +141,8 @@ APIs.  Most of these are fairly obvious; for example types corresponding
 to integers of particular sizes and types for passing color values.

 One exception is how non-integral numbers are handled.  For application
-convenience most APIs that take such numbers have C (double) arguments,
-however internally PNG, and libpng, use 32 bit signed integers and encode
+convenience most APIs that take such numbers have C (double) arguments;
+however, internally PNG, and libpng, use 32 bit signed integers and encode
 the value by multiplying by 100,000.  As of libpng 1.5.0 a convenience
 macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point)
 which is simply (png_int_32).
@@ -723,11 +723,11 @@ Libpng only supports composing onto a single color (using png_set_background;
 see below).  Otherwise you must do the composition yourself and, in this case,
 you may need to call png_set_alpha_mode:

-#if PNG_LIBPNG_VER >= 10504
-   png_set_alpha_mode(png_ptr, mode, screen_gamma);
-#else
-   png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
-#endif
+    #if PNG_LIBPNG_VER >= 10504
+       png_set_alpha_mode(png_ptr, mode, screen_gamma);
+    #else
+       png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
+    #endif

 The screen_gamma value is the same as the argument to png_set_gamma; however,
 how it affects the output depends on the mode.  png_set_alpha_mode() sets the
@@ -799,7 +799,7 @@ the screen_gamma value.  Pixels with alpha less than 1.0
 will still have linear components.

 Use this format if you have control over your
-compositing software and do don't do other arithmetic
+compositing software and so don't do other arithmetic
 (such as scaling) on the data you get from libpng.  Your
 compositing software can simply copy opaque pixels to
 the output but still has linear values for the
@@ -1130,6 +1130,11 @@ data has been read, or zero if it is missing.  The parameters to the
 png_get_<chunk> are set directly if they are simple data types, or a
 pointer into the info_ptr is returned for any complex types.

+The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks
+is simply returned to give the application information about how the
+image was encoded.  Libpng itself only does transformations using the file
+gamma when combining semitransparent pixels with the background color.
+
    png_get_PLTE(png_ptr, info_ptr, &palette,
                     &num_palette);

@@ -1141,14 +1146,14 @@ pointer into the info_ptr is returned for any complex types.
    png_get_gAMA(png_ptr, info_ptr, &file_gamma);
    png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma);

-    file_gamma     - the gamma at which the file is
+    file_gamma     - the gamma at which the file was
                     written (PNG_INFO_gAMA)

    int_file_gamma - 100,000 times the gamma at which the
                     file is written

-    png_get_cHRM(png_ptr, info_ptr,  &white_x, &white_y, &red_x, &red_y,
-                     &green_x, &green_y, &blue_x, &blue_y)
+    png_get_cHRM(png_ptr, info_ptr,  &white_x, &white_y, &red_x,
+                     &red_y, &green_x, &green_y, &blue_x, &blue_y)
    png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z, &green_X,
                     &green_Y, &green_Z, &blue_X, &blue_Y, &blue_Z)
    png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x, &int_white_y,
@@ -1159,8 +1164,9 @@ pointer into the info_ptr is returned for any complex types.
                     &int_blue_X, &int_blue_Y, &int_blue_Z)

    {white,red,green,blue}_{x,y}
-                     A color space encoding specified using the chromaticities
-                     of the end points and the white point. (PNG_INFO_cHRM)
+                     A color space encoding specified using the
+                     chromaticities of the end points and the
+                     white point. (PNG_INFO_cHRM)

    {red,green,blue}_{X,Y,Z}
                     A color space encoding specified using the encoding end
@@ -1571,17 +1577,19 @@ Within the matrix,
     "A" means the transformation is obtained by png_set_add_alpha().
     "X" means the transformation is obtained by png_set_expand().
     "1" means the transformation is obtained by
-         png_set_expand_gray_1_2_4_to_8() (and by png_set_expand() if there
-         is no transparency in the original or the final format).
+         png_set_expand_gray_1_2_4_to_8() (and by png_set_expand()
+         if there is no transparency in the original or the final
+         format).
     "C" means the transformation is obtained by png_set_gray_to_rgb().
     "G" means the transformation is obtained by png_set_rgb_to_gray().
     "P" means the transformation is obtained by
         png_set_expand_palette_to_rgb().
     "p" means the transformation is obtained by png_set_packing().
     "Q" means the transformation is obtained by png_set_quantize().
-     "T" means the transformation is obtained by png_set_tRNS_to_alpha().
-     "B" means the transformation is obtained by png_set_background(), or
-         png_strip_alpha().
+     "T" means the transformation is obtained by
+         png_set_tRNS_to_alpha().
+     "B" means the transformation is obtained by
+         png_set_background(), or png_strip_alpha().

 When an entry has multiple transforms listed all are required to cause the
 right overall transformation.  When two transforms are separated by a comma
@@ -1666,8 +1674,8 @@ with alpha.

    if (color_type == PNG_COLOR_TYPE_RGB ||
        color_type == PNG_COLOR_TYPE_RGB_ALPHA)
-       png_set_rgb_to_gray(png_ptr, error_action, double red_weight,
-          double green_weight);
+       png_set_rgb_to_gray(png_ptr, error_action,
+          double red_weight, double green_weight);

    error_action = 1: silently do the conversion

@@ -1689,7 +1697,8 @@ with alpha.
 In the corresponding fixed point API the red_weight and green_weight values are
 simply scaled by 100,000:

-    png_set_rgb_to_gray(png_ptr, error_action, png_fixed_point red_weight,
+    png_set_rgb_to_gray(png_ptr, error_action,
+       png_fixed_point red_weight,
       png_fixed_point green_weight);

 If you have set error_action = 1 or 2, you can
@@ -1733,7 +1742,7 @@ the current display (e.g., the background color from a web page).  You
 need to tell libpng how the color is represented, both the format of the
 component values in the color (the number of bits) and the gamma encoding of the
 color.  The function takes two arguments, background_gamma_mode and need_expand
-to convey this information, however only two combinations are likely to be
+to convey this information; however, only two combinations are likely to be
 useful:

    png_color_16 my_background;
@@ -2027,7 +2036,7 @@ the second parameter NULL.

 If you don't want libpng to handle the interlacing details, just call
 png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images.
-Each of the images is a valid image by itself, however you will almost
+Each of the images is a valid image by itself; however, you will almost
 certainly need to distribute the pixels from each sub-image to the
 correct place.  This is where everything gets very tricky.

@@ -2184,7 +2193,7 @@ sPLT, only the n'th item in the structure is freed, where n is "seq".
 The default behavior is only to free data that was allocated internally
 by libpng.  This can be changed, so that libpng will not free the data,
 or so that it will free data that was allocated by the user with png_malloc()
-or png_zalloc() and passed in via a png_set_*() function, with
+or png_calloc() and passed in via a png_set_*() function, with

    png_data_freer(png_ptr, info_ptr, freer, mask)

@@ -2205,7 +2214,7 @@ or png_destroy_*() is supposed to free the data.  When the user assumes
 responsibility for libpng-allocated data, the application must use
 png_free() to free it, and when the user transfers responsibility to libpng
 for data that the user has allocated, the user must have used png_malloc()
-or png_zalloc() to allocate it.
+or png_calloc() to allocate it.

 If you allocated your row_pointers in a single block, as suggested above in
 the description of the high level read interface, you must not transfer
@@ -3023,8 +3032,8 @@ tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"),
 although this isn't a requirement.  Unlike the tIME chunk, the
 "Creation Time" tEXt chunk is not expected to be automatically changed
 by the software.  To facilitate the use of RFC 1123 dates, a function
-png_convert_to_rfc1123(png_timep) is provided to convert from PNG
-time to an RFC 1123 format string.
+png_convert_to_rfc1123(png_ptr, png_timep) is provided to convert
+from PNG time to an RFC 1123 format string.

 Writing unknown chunks

@@ -3386,7 +3395,7 @@ png_destroy_write_struct().
 The default behavior is only to free data that was allocated internally
 by libpng.  This can be changed, so that libpng will not free the data,
 or so that it will free data that was allocated by the user with png_malloc()
-or png_zalloc() and passed in via a png_set_*() function, with
+or png_calloc() and passed in via a png_set_*() function, with

    png_data_freer(png_ptr, info_ptr, freer, mask)

@@ -3422,7 +3431,7 @@ When the user assumes responsibility for libpng-allocated data, the
 application must use
 png_free() to free it, and when the user transfers responsibility to libpng
 for data that the user has allocated, the user must have used png_malloc()
-or png_zalloc() to allocate it.
+or png_calloc() to allocate it.

 If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword
 separately, do not transfer responsibility for freeing text_ptr to libpng,
@@ -3450,12 +3459,13 @@ in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively.  To change
 these functions, call the appropriate png_set_*_fn() function.

 Memory allocation is done through the functions png_malloc(), png_calloc(),
-and png_free().  These currently just call the standard C functions.
-png_calloc() calls png_malloc() and then clears the newly
-allocated memory to zero.  There is limited support for certain systems
-with segmented memory architectures and the types of pointers declared by
-png.h match this; you will have to use appropriate pointers in your
-application.  Since it is
+and png_free().  The png_malloc() and png_free() functions currently just
+call the standard C functions and png_calloc() calls png_malloc() and then
+clears the newly allocated memory to zero; note that png_calloc(png_ptr, size)
+is not the same as the calloc(number, size) function provided by stdlib.h.
+There is limited support for certain systems with segmented memory
+architectures and the types of pointers declared by png.h match this; you
+will have to use appropriate pointers in your application.  Since it is
 unlikely that the method of handling memory allocation on a platform
 will change between applications, these functions must be modified in
 the library at compile time.  If you prefer to use a different method
@@ -3685,7 +3695,7 @@ available to set these separately for non-IDAT
 compressed chunks such as zTXt, iTXt, and iCCP:

    #include zlib.h
-    #if PNG_LIBPNG_VER <= 10504
+    #if PNG_LIBPNG_VER >= 10504
    png_set_text_compression_level(png_ptr, level);

    png_set_text_compression_mem_level(png_ptr, level);
@@ -4084,8 +4094,8 @@ png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(),
 png_set_asm_flags(), and png_mmx_supported()

 We removed the obsolete png_check_sig(), png_memcpy_check(), and
-png_memset_check() functions.  Instead use !png_sig_cmp(), memcpy(),
-and memset(), respectively.
+png_memset_check() functions.  Instead use !png_sig_cmp(), png_memcpy(),
+and png_memset(), respectively.

 The function png_set_gray_1_2_4_to_8() was removed. It has been
 deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
@@ -4122,7 +4132,9 @@ png_set_strip_error_numbers() was removed from the library by default.

 The png_zalloc() and png_zfree() functions are no longer exported.
 The png_zalloc() function no longer zeroes out the memory that it
-allocates.
+allocates.  Applications that called png_zalloc(png_ptr, number, size)
+can call png_calloc(png_ptr, number*size) instead, and can call
+png_free() instead of png_zfree().

 Support for dithering was disabled by default in libpng-1.4.0, because
 it has not been well tested and doesn't actually "dither".
@@ -4142,12 +4154,22 @@ X.  Changes to Libpng from version 1.4.x to 1.5.x
 From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
 function) incorrectly returned a value of type png_uint_32.

+Checking for invalid palette index on read or write was added at libpng
+1.5.10.  When an invalid index is found, libpng issues a benign error.
+This is enabled by default but can be disabled in each png_ptr with
+
+   png_set_check_for_invalid_index(png_ptr, allowed);
+
+      allowed  - one of
+                 0: disable
+                 1: enable
+
 A. Changes that affect users of libpng

 There are no substantial API changes between the non-deprecated parts of
-the 1.4.5 API and the 1.5.0 API, however the ability to directly access
-the main libpng control structures, png_struct and png_info, deprecated
-in earlier versions of libpng, has been completely removed from
+the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
+members of the main libpng control structures, png_struct and png_info,
+deprecated in earlier versions of libpng, has been completely removed from
 libpng 1.5.

 We no longer include zlib.h in png.h.  Applications that need access
@@ -4155,9 +4177,12 @@ to information in zlib.h will need to add the '#include "zlib.h"'
 directive.  It does not matter whether it is placed prior to or after
 the '"#include png.h"' directive.

-We moved the png_strcpy(), png_strncpy(), png_strlen(), png_memcpy(),
-png_memcmp(), png_sprintf, and png_memcpy() macros into a private
-header file (pngpriv.h) that is not accessible to applications.
+The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used
+and were removed.
+
+We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp()
+macros into a private header file (pngpriv.h) that is not accessible to
+applications.

 In png_get_iCCP, the type of "profile" was changed from png_charpp
 to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep.
@@ -4260,16 +4285,30 @@ PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said
 that it could be used to override them.  Now this function will reduce or
 increase the limits.

+Starting in libpng-1.5.10, the user limits can be set en masse with the
+configuration option PNG_SAFE_LIMITS_SUPPORTED.  If this option is enabled,
+a set of "safe" limits is applied in pngpriv.h.  These can be overridden by
+application calls to png_set_user_limits(), png_set_user_chunk_cache_max(),
+and/or png_set_user_malloc_max() that increase or decrease the limits.  Also,
+in libpng-1.5.10 the default width and height limits were increased
+from 1,000,000 to 0x7ffffff (i.e., made unlimited).  Therefore, the
+limits are now
+                               default      safe
+   png_user_width_max        0x7fffffff    1,000,000
+   png_user_height_max       0x7fffffff    1,000,000
+   png_user_chunk_cache_max  0 (unlimited)   128
+   png_user_chunk_malloc_max 0 (unlimited) 8,000,000
+
 B. Changes to the build and configuration of libpng

 Details of internal changes to the library code can be found in the CHANGES
 file and in the GIT repository logs.  These will be of no concern to the vast
-majority of library users or builders, however the few who configure libpng
+majority of library users or builders; however, the few who configure libpng
 to a non-default feature set may need to change how this is done.

 There should be no need for library builders to alter build scripts if
 these use the distributed build support - configure or the makefiles -
-however users of the makefiles may care to update their build scripts
+however, users of the makefiles may care to update their build scripts
 to build pnglibconf.h where the corresponding makefile does not do so.

 Building libpng with a non-default configuration has changed completely.
@@ -4375,7 +4414,7 @@ merely stops the function from being exported.
 PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating
 point implementation or the fixed point one.  Typically the fixed point
 implementation is larger and slower than the floating point implementation
-on a system that supports floating point, however it may be faster on a
+on a system that supports floating point; however, it may be faster on a
 system which lacks floating point hardware and therefore uses a software
 emulation.

@@ -4404,7 +4443,7 @@ pngconf.h no longer includes pngusr.h, therefore pngusr.h is ignored after the
 build of pnglibconf.h and it is never included in an application build.

 The rarely used alternative of adding a list of feature macros to the
-CFLAGS setting in the build also still works, however the macros will be
+CFLAGS setting in the build also still works; however, the macros will be
 copied to pnglibconf.h and this may produce macro redefinition warnings
 when the individual C files are compiled.

@@ -4542,11 +4581,11 @@ pngtest) appear in
 pngpriv.h
 above the comment that says

-  /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
+  /* Maintainer: Put new private prototypes here ^ */

 To avoid polluting the global namespace, the names of all exported
-functions and variables begin with  "png_", and all publicly visible C
-preprocessor macros begin with "PNG_".  We request that applications that
+functions and variables begin with "png_", and all publicly visible C
+preprocessor macros begin with "PNG".  We request that applications that
 use libpng *not* begin any of their own symbols with either of these strings.

 We put a space after each comma and after each semicolon
@@ -4559,7 +4598,7 @@ left parenthesis that follows it:
    for (i = 2; i > 0; --i)
       y[i] = a(x) + (int)b;

-We prefer #ifdef and #ifndef to #if defined() and if !defined()
+We prefer #ifdef and #ifndef to #if defined() and #if !defined()
 when there is only one macro being tested.

 We prefer to express integers that are used as bit masks in hex format,
@@ -4573,25 +4612,25 @@ Other rules can be inferred by inspecting the libpng source.

 XIV. Y2K Compliance in libpng

-November 21, 2011
+January 10, 2013

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.

 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.5.7beta05 are Y2K compliant.  It is my belief that earlier
+upward through 1.5.14beta08 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.

-Libpng only has three year fields.  One is a 2-byte unsigned integer that
-will hold years up to 65535.  The other two hold the date in text
+Libpng only has two year fields.  One is a 2-byte unsigned integer that
+will hold years up to 65535.  The other holds the date in text
 format, and will hold years up to 9999.

 The integer is
    "png_uint_16 year" in png_time_struct.

-The strings are
-    "png_charp time_buffer" in png_struct and
-    "near_time_buffer", which is a local character string in png.c.
+The string is
+    "char time_buffer[29]" in png_struct.  This will no
+longer be used in libpng-1.6.x and will be removed from libpng-1.7.0.

 There are seven time-related functions:

--- a/libpng.3
+++ b/libpng.3
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,21 +1,11 @@
-.TH LIBPNGPF 3 "November 18, 2011"
+.TH LIBPNGPF 3 "January 10, 2013"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.5.7beta05
+libpng \- Portable Network Graphics (PNG) Reference Library 1.5.14beta08
 (private functions)
 .SH SYNOPSIS
 \fB#include \fI"pngpriv.h"

-\fI\fB
-
-\fBAs of libpng version \fP\fI1.5.1\fP\fB, this section is no longer \fP\fImaintained\fP\fB, now \fIthat
-
-\fBthe private function prototypes are hidden in pngpriv.h and not \fIaccessible
-
-\fBto applications. Look in pngpriv.h for the prototypes and a short \fIdescription
-
-\fBof each \fIfunction.
-
-\fI\fB
+\fBAs of libpng version \fP\fI1.5.1\fP\fB, this section is no longer \fP\fImaintained\fP\fB, now that the private function prototypes are hidden in pngpriv.h and not accessible to applications. Look in pngpriv.h for the prototypes and a short description of each \fIfunction.

 .SH DESCRIPTION
 The functions previously listed here are used privately by libpng
--- a/ltmain.sh
+++ b/ltmain.sh
@@ -1,9 +1,9 @@

-# libtool (GNU libtool) 2.4
+# libtool (GNU libtool) 2.4.2
 # Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996

 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
 # This is free software; see the source for copying conditions.  There is NO
 # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

@@ -41,6 +41,7 @@
 #       --quiet, --silent    don't print informational messages
 #       --no-quiet, --no-silent
 #                            print informational messages (default)
+#       --no-warn            don't display warning messages
 #       --tag=TAG            use configuration variables from tag TAG
 #   -v, --verbose            print more informational messages than default
 #       --no-verbose         don't print the extra informational messages
@@ -69,7 +70,7 @@
 #         compiler:		$LTCC
 #         compiler flags:		$LTCFLAGS
 #         linker:		$LD (gnu? $with_gnu_ld)
-#         $progname:	(GNU libtool) 2.4
+#         $progname:	(GNU libtool) 2.4.2
 #         automake:	$automake_version
 #         autoconf:	$autoconf_version
 #
@@ -79,9 +80,9 @@

 PROGRAM=libtool
 PACKAGE=libtool
-VERSION=2.4
+VERSION=2.4.2
 TIMESTAMP=""
-package_revision=1.3293
+package_revision=1.3337

 # Be Bourne compatible
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
@@ -136,15 +137,10 @@ progpath="$0"

 : ${CP="cp -f"}
 test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
-: ${EGREP="grep -E"}
-: ${FGREP="grep -F"}
-: ${GREP="grep"}
-: ${LN_S="ln -s"}
 : ${MAKE="make"}
 : ${MKDIR="mkdir"}
 : ${MV="mv -f"}
 : ${RM="rm -f"}
-: ${SED="sed"}
 : ${SHELL="${CONFIG_SHELL-/bin/sh}"}
 : ${Xsed="$SED -e 1s/^X//"}

@@ -387,7 +383,7 @@ case $progpath in
     ;;
  *)
     save_IFS="$IFS"
-     IFS=:
+     IFS=${PATH_SEPARATOR-:}
     for progdir in $PATH; do
       IFS="$save_IFS"
       test -x "$progdir/$progname" && break
@@ -771,8 +767,8 @@ func_help ()
 	s*\$LTCFLAGS*'"$LTCFLAGS"'*
 	s*\$LD*'"$LD"'*
 	s/\$with_gnu_ld/'"$with_gnu_ld"'/
-	s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
-	s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
+	s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
+	s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
 	p
 	d
     }
@@ -1052,6 +1048,7 @@ opt_finish=false
 opt_help=false
 opt_help_all=false
 opt_silent=:
+opt_warning=:
 opt_verbose=:
 opt_silent=false
 opt_verbose=false
@@ -1118,6 +1115,10 @@ esac
 			;;
      --no-silent|--no-quiet)
 			opt_silent=false
+func_append preserve_args " $opt"
+			;;
+      --no-warning|--no-warn)
+			opt_warning=false
 func_append preserve_args " $opt"
 			;;
      --no-verbose)
@@ -2059,7 +2060,7 @@ func_mode_compile ()
    *.[cCFSifmso] | \
    *.ada | *.adb | *.ads | *.asm | \
    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
-    *.[fF][09]? | *.for | *.java | *.obj | *.sx | *.cu | *.cup)
+    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
      func_xform "$libobj"
      libobj=$func_xform_result
      ;;
@@ -3201,11 +3202,13 @@ func_mode_install ()

      # Set up the ranlib parameters.
      oldlib="$destdir/$name"
+      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+      tool_oldlib=$func_to_tool_file_result

      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'

      if test -n "$stripme" && test -n "$old_striplib"; then
-	func_show_eval "$old_striplib $oldlib" 'exit $?'
+	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
      fi

      # Do each command in the postinstall commands.
@@ -3470,7 +3473,7 @@ static const void *lt_preloaded_setup() {
 	  # linked before any other PIC object.  But we must not use
 	  # pic_flag when linking with -static.  The problem exists in
 	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
-	  *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
 	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
 	  *-*-hpux*)
 	    pic_flag_for_symtable=" $pic_flag"  ;;
@@ -3982,14 +3985,17 @@ func_exec_program_core ()
 # launches target application with the remaining arguments.
 func_exec_program ()
 {
-  for lt_wr_arg
-  do
-    case \$lt_wr_arg in
-    --lt-*) ;;
-    *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
-    esac
-    shift
-  done
+  case \" \$* \" in
+  *\\ --lt-*)
+    for lt_wr_arg
+    do
+      case \$lt_wr_arg in
+      --lt-*) ;;
+      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+      esac
+      shift
+    done ;;
+  esac
  func_exec_program_core \${1+\"\$@\"}
 }

@@ -5057,9 +5063,15 @@ void lt_dump_script (FILE* f)
 {
 EOF
 	    func_emit_wrapper yes |
-              $SED -e 's/\([\\"]\)/\\\1/g' \
-	           -e 's/^/  fputs ("/' -e 's/$/\\n", f);/'
-
+	      $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/  fputs ("\1", f);/p
+g
+D'
            cat <<"EOF"
 }
 EOF
@@ -5643,7 +5655,8 @@ func_mode_link ()
 	continue
 	;;

-      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
 	func_append compiler_flags " $arg"
 	func_append compile_command " $arg"
 	func_append finalize_command " $arg"
@@ -6147,7 +6160,8 @@ func_mode_link ()
 	lib=
 	found=no
 	case $deplib in
-	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
 	  if test "$linkmode,$pass" = "prog,link"; then
 	    compile_deplibs="$deplib $compile_deplibs"
 	    finalize_deplibs="$deplib $finalize_deplibs"
@@ -6831,7 +6845,7 @@ func_mode_link ()
 	         test "$hardcode_direct_absolute" = no; then
 		add="$dir/$linklib"
 	      elif test "$hardcode_minus_L" = yes; then
-		add_dir="-L$dir"
+		add_dir="-L$absdir"
 		# Try looking first in the location we're being installed to.
 		if test -n "$inst_prefix_dir"; then
 		  case $libdir in
@@ -7316,6 +7330,7 @@ func_mode_link ()
 	  # which has an extra 1 added just for fun
 	  #
 	  case $version_type in
+	  # correct linux to gnu/linux during the next big refactor
 	  darwin|linux|osf|windows|none)
 	    func_arith $number_major + $number_minor
 	    current=$func_arith_result
@@ -7432,7 +7447,7 @@ func_mode_link ()
 	  versuffix="$major.$revision"
 	  ;;

-	linux)
+	linux) # correct to gnu/linux during the next big refactor
 	  func_arith $current - $age
 	  major=.$func_arith_result
 	  versuffix="$major.$age.$revision"
@@ -8020,6 +8035,11 @@ EOF

      # Test again, we may have decided not to build it any more
      if test "$build_libtool_libs" = yes; then
+	# Remove ${wl} instances when linking with ld.
+	# FIXME: should test the right _cmds variable.
+	case $archive_cmds in
+	  *\$LD\ *) wl= ;;
+        esac
 	if test "$hardcode_into_libs" = yes; then
 	  # Hardcode the library paths
 	  hardcode_libdirs=
@@ -8050,7 +8070,7 @@ EOF
 	    elif test -n "$runpath_var"; then
 	      case "$perm_rpath " in
 	      *" $libdir "*) ;;
-	      *) func_apped perm_rpath " $libdir" ;;
+	      *) func_append perm_rpath " $libdir" ;;
 	      esac
 	    fi
 	  done
@@ -8058,11 +8078,7 @@ EOF
 	  if test -n "$hardcode_libdir_separator" &&
 	     test -n "$hardcode_libdirs"; then
 	    libdir="$hardcode_libdirs"
-	    if test -n "$hardcode_libdir_flag_spec_ld"; then
-	      eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
-	    else
-	      eval dep_rpath=\"$hardcode_libdir_flag_spec\"
-	    fi
+	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
 	  fi
 	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
 	    # We should set the runpath_var.
@@ -9152,6 +9168,8 @@ EOF
 	    esac
 	  done
 	fi
+	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+	tool_oldlib=$func_to_tool_file_result
 	eval cmds=\"$old_archive_cmds\"

 	func_len " $cmds"
@@ -9261,7 +9279,8 @@ EOF
 	      *.la)
 		func_basename "$deplib"
 		name="$func_basename_result"
-		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		func_resolve_sysroot "$deplib"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
 		test -z "$libdir" && \
 		  func_fatal_error "\`$deplib' is not a valid libtool archive"
 		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
--- a/148
+++ b/148
@@ -1,10 +1,9 @@
 #! /bin/sh
 # Common stub for a few missing GNU programs while installing.

-scriptversion=2009-04-28.21; # UTC
+scriptversion=2012-01-06.18; # UTC

-# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
-# 2008, 2009 Free Software Foundation, Inc.
+# Copyright (C) 1996-2012 Free Software Foundation, Inc.
 # Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.

 # This program is free software; you can redistribute it and/or modify
@@ -26,7 +25,7 @@ scriptversion=2009-04-28.21; # UTC
 # the same distribution terms that you use for the rest of that program.

 if test $# -eq 0; then
-  echo 1>&2 "Try \`$0 --help' for more information"
+  echo 1>&2 "Try '$0 --help' for more information"
  exit 1
 fi

@@ -34,7 +33,7 @@ run=:
 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'

-# In the cases where this matters, `missing' is being run in the
+# In the cases where this matters, 'missing' is being run in the
 # srcdir already.
 if test -f configure.ac; then
  configure_ac=configure.ac
@@ -65,7 +64,7 @@ case $1 in
    echo "\
 $0 [OPTION]... PROGRAM [ARGUMENT]...

-Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+Handle 'PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
 error status if there is no known handling for PROGRAM.

 Options:
@@ -74,21 +73,20 @@ Options:
  --run           try to run the given command, and emulate it if it fails

 Supported PROGRAM values:
-  aclocal      touch file \`aclocal.m4'
-  autoconf     touch file \`configure'
-  autoheader   touch file \`config.h.in'
+  aclocal      touch file 'aclocal.m4'
+  autoconf     touch file 'configure'
+  autoheader   touch file 'config.h.in'
  autom4te     touch the output file, or create a stub one
-  automake     touch all \`Makefile.in' files
-  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
-  flex         create \`lex.yy.c', if possible, from existing .c
+  automake     touch all 'Makefile.in' files
+  bison        create 'y.tab.[ch]', if possible, from existing .[ch]
+  flex         create 'lex.yy.c', if possible, from existing .c
  help2man     touch the output file
-  lex          create \`lex.yy.c', if possible, from existing .c
+  lex          create 'lex.yy.c', if possible, from existing .c
  makeinfo     touch the output file
-  tar          try tar, gnutar, gtar, then tar without non-portable flags
-  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
+  yacc         create 'y.tab.[ch]', if possible, from existing .[ch]

-Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
-\`g' are ignored when checking the name.
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.

 Send bug reports to <bug-automake@gnu.org>."
    exit $?
@@ -100,8 +98,8 @@ Send bug reports to <bug-automake@gnu.org>."
    ;;

  -*)
-    echo 1>&2 "$0: Unknown \`$1' option"
-    echo 1>&2 "Try \`$0 --help' for more information"
+    echo 1>&2 "$0: Unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
    exit 1
    ;;

@@ -122,22 +120,13 @@ case $1 in
    # Not GNU programs, they don't have --version.
    ;;

-  tar*)
-    if test -n "$run"; then
-       echo 1>&2 "ERROR: \`tar' requires --run"
-       exit 1
-    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
-       exit 1
-    fi
-    ;;
-
  *)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
       # Could not run --version or --help.  This is probably someone
-       # running `$TOOL --version' or `$TOOL --help' to check whether
+       # running '$TOOL --version' or '$TOOL --help' to check whether
       # $TOOL exists and not knowing $TOOL uses missing.
       exit 1
    fi
@@ -149,27 +138,27 @@ esac
 case $program in
  aclocal*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
-         to install the \`Automake' and \`Perl' packages.  Grab them from
+WARNING: '$1' is $msg.  You should only need it if
+         you modified 'acinclude.m4' or '${configure_ac}'.  You might want
+         to install the Automake and Perl packages.  Grab them from
         any GNU archive site."
    touch aclocal.m4
    ;;

  autoconf*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`${configure_ac}'.  You might want to install the
-         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
+WARNING: '$1' is $msg.  You should only need it if
+         you modified '${configure_ac}'.  You might want to install the
+         Autoconf and GNU m4 packages.  Grab them from any GNU
         archive site."
    touch configure
    ;;

  autoheader*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
-         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
+WARNING: '$1' is $msg.  You should only need it if
+         you modified 'acconfig.h' or '${configure_ac}'.  You might want
+         to install the Autoconf and GNU m4 packages.  Grab them
         from any GNU archive site."
    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
    test -z "$files" && files="config.h"
@@ -186,9 +175,9 @@ WARNING: \`$1' is $msg.  You should only need it if

  automake*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
-         You might want to install the \`Automake' and \`Perl' packages.
+WARNING: '$1' is $msg.  You should only need it if
+         you modified 'Makefile.am', 'acinclude.m4' or '${configure_ac}'.
+         You might want to install the Automake and Perl packages.
         Grab them from any GNU archive site."
    find . -type f -name Makefile.am -print |
 	   sed 's/\.am$/.in/' |
@@ -197,10 +186,10 @@ WARNING: \`$1' is $msg.  You should only need it if

  autom4te*)
    echo 1>&2 "\
-WARNING: \`$1' is needed, but is $msg.
+WARNING: '$1' is needed, but is $msg.
         You might have modified some files without having the
         proper tools for further handling them.
-         You can get \`$1' as part of \`Autoconf' from any GNU
+         You can get '$1' as part of Autoconf from any GNU
         archive site."

    file=`echo "$*" | sed -n "$sed_output"`
@@ -220,13 +209,13 @@ WARNING: \`$1' is needed, but is $msg.

  bison*|yacc*)
    echo 1>&2 "\
-WARNING: \`$1' $msg.  You should only need it if
-         you modified a \`.y' file.  You may need the \`Bison' package
+WARNING: '$1' $msg.  You should only need it if
+         you modified a '.y' file.  You may need the Bison package
         in order for those modifications to take effect.  You can get
-         \`Bison' from any GNU archive site."
+         Bison from any GNU archive site."
    rm -f y.tab.c y.tab.h
    if test $# -ne 1; then
-        eval LASTARG="\${$#}"
+        eval LASTARG=\${$#}
 	case $LASTARG in
 	*.y)
 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
@@ -250,13 +239,13 @@ WARNING: \`$1' $msg.  You should only need it if

  lex*|flex*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified a \`.l' file.  You may need the \`Flex' package
+WARNING: '$1' is $msg.  You should only need it if
+         you modified a '.l' file.  You may need the Flex package
         in order for those modifications to take effect.  You can get
-         \`Flex' from any GNU archive site."
+         Flex from any GNU archive site."
    rm -f lex.yy.c
    if test $# -ne 1; then
-        eval LASTARG="\${$#}"
+        eval LASTARG=\${$#}
 	case $LASTARG in
 	*.l)
 	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
@@ -273,10 +262,10 @@ WARNING: \`$1' is $msg.  You should only need it if

  help2man*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
+WARNING: '$1' is $msg.  You should only need it if
 	 you modified a dependency of a manual page.  You may need the
-	 \`Help2man' package in order for those modifications to take
-	 effect.  You can get \`Help2man' from any GNU archive site."
+	 Help2man package in order for those modifications to take
+	 effect.  You can get Help2man from any GNU archive site."

    file=`echo "$*" | sed -n "$sed_output"`
    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
@@ -291,12 +280,12 @@ WARNING: \`$1' is $msg.  You should only need it if

  makeinfo*)
    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified a \`.texi' or \`.texinfo' file, or any other file
+WARNING: '$1' is $msg.  You should only need it if
+         you modified a '.texi' or '.texinfo' file, or any other file
         indirectly affecting the aspect of the manual.  The spurious
-         call might also be the consequence of using a buggy \`make' (AIX,
-         DU, IRIX).  You might want to install the \`Texinfo' package or
-         the \`GNU make' package.  Grab either from any GNU archive site."
+         call might also be the consequence of using a buggy 'make' (AIX,
+         DU, IRIX).  You might want to install the Texinfo package or
+         the GNU make package.  Grab either from any GNU archive site."
    # The file to touch is that specified with -o ...
    file=`echo "$*" | sed -n "$sed_output"`
    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
@@ -318,49 +307,14 @@ WARNING: \`$1' is $msg.  You should only need it if
    touch $file
    ;;

-  tar*)
-    shift
-
-    # We have already tried tar in the generic part.
-    # Look for gnutar/gtar before invocation to avoid ugly error
-    # messages.
-    if (gnutar --version > /dev/null 2>&1); then
-       gnutar "$@" && exit 0
-    fi
-    if (gtar --version > /dev/null 2>&1); then
-       gtar "$@" && exit 0
-    fi
-    firstarg="$1"
-    if shift; then
-	case $firstarg in
-	*o*)
-	    firstarg=`echo "$firstarg" | sed s/o//`
-	    tar "$firstarg" "$@" && exit 0
-	    ;;
-	esac
-	case $firstarg in
-	*h*)
-	    firstarg=`echo "$firstarg" | sed s/h//`
-	    tar "$firstarg" "$@" && exit 0
-	    ;;
-	esac
-    fi
-
-    echo 1>&2 "\
-WARNING: I can't seem to be able to run \`tar' with the given arguments.
-         You may want to install GNU tar or Free paxutils, or check the
-         command line arguments."
-    exit 1
-    ;;
-
  *)
    echo 1>&2 "\
-WARNING: \`$1' is needed, and is $msg.
+WARNING: '$1' is needed, and is $msg.
         You might have modified some files without having the
-         proper tools for further handling them.  Check the \`README' file,
+         proper tools for further handling them.  Check the 'README' file,
         it often tells you about the needed prerequisites for installing
         this package.  You may also peek at any GNU archive site, in case
-         some other package would contain this missing \`$1' program."
+         some other package would contain this missing '$1' program."
    exit 1
    ;;
 esac
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "November 18, 2011"
+.TH PNG 5 "January 10, 2013"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
--- a/png.c
+++ b/png.c
@@ -1,8 +1,8 @@

 /* png.c - location for general purpose libpng functions
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -14,7 +14,7 @@
 #include "pngpriv.h"

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_5_7beta05 Your_png_h_is_not_version_1_5_7beta05;
+typedef png_libpng_version_1_5_14beta08 Your_png_h_is_not_version_1_5_14beta08;

 /* Tells libpng that we have already handled the first "num_bytes" bytes
 * of the PNG file signature.  If the PNG data is embedded into another
@@ -73,13 +73,16 @@ PNG_FUNCTION(voidpf /* PRIVATE */,
 png_zalloc,(voidpf png_ptr, uInt items, uInt size),PNG_ALLOCATED)
 {
   png_voidp ptr;
-   png_structp p=(png_structp)png_ptr;
-   png_uint_32 save_flags=p->flags;
+   png_structp p;
+   png_uint_32 save_flags;
   png_alloc_size_t num_bytes;

   if (png_ptr == NULL)
      return (NULL);

+   p=(png_structp)png_ptr;
+   save_flags=p->flags;
+
   if (items > PNG_UINT_32_MAX/size)
   {
     png_warning (p, "Potential overflow in png_zalloc()");
@@ -655,14 +658,14 @@ png_get_copyright(png_const_structp png_ptr)
 #else
 #  ifdef __STDC__
   return PNG_STRING_NEWLINE \
-     "libpng version 1.5.7beta05 - November 19, 2011" PNG_STRING_NEWLINE \
-     "Copyright (c) 1998-2011 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
+     "libpng version 1.5.14beta08 - January 10, 2013" PNG_STRING_NEWLINE \
+     "Copyright (c) 1998-2013 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
     "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
     "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
     PNG_STRING_NEWLINE;
 #  else
-      return "libpng version 1.5.7beta05 - November 19, 2011\
-      Copyright (c) 1998-2011 Glenn Randers-Pehrson\
+      return "libpng version 1.5.14beta08 - January 10, 2013\
+      Copyright (c) 1998-2013 Glenn Randers-Pehrson\
      Copyright (c) 1996-1997 Andreas Dilger\
      Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
 #  endif
@@ -969,8 +972,8 @@ int png_XYZ_from_xy(png_XYZ *XYZ, png_xy xy)
    * and it is certain that it becomes unstable where the end points are close
    * together.
    *
-    * So this code uses the perhaps slighly less optimal but more understandable
-    * and totally obvious approach of calculating color-scale.
+    * So this code uses the perhaps slightly less optimal but more
+    * understandable and totally obvious approach of calculating color-scale.
    *
    * This algorithm depends on the precision in white-scale and that is
    * (1/white-y), so we can immediately see that as white-y approaches 0 the
@@ -1458,7 +1461,7 @@ png_check_fp_string(png_const_charp string, png_size_t size)
 }
 #endif /* pCAL or sCAL */

-#ifdef PNG_READ_sCAL_SUPPORTED
+#ifdef PNG_sCAL_SUPPORTED
 #  ifdef PNG_FLOATING_POINT_SUPPORTED
 /* Utility used below - a simple accurate power of ten from an integral
 * exponent.
@@ -1467,7 +1470,7 @@ static double
 png_pow10(int power)
 {
   int recip = 0;
-   double d = 1;
+   double d = 1.0;

   /* Handle negative exponent with a reciprocal at the end because
    * 10 is exact whereas .1 is inexact in base 2
@@ -1481,7 +1484,7 @@ png_pow10(int power)
   if (power > 0)
   {
      /* Decompose power bitwise. */
-      double mult = 10;
+      double mult = 10.0;
      do
      {
         if (power & 1) d *= mult;
@@ -1600,7 +1603,8 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
            {
               double d;

-               fp *= 10;
+               fp *= 10.0;
+
               /* Use modf here, not floor and subtract, so that
                * the separation is done in one step.  At the end
                * of the loop don't break the number into parts so
@@ -1613,7 +1617,7 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
               {
                  d = floor(fp + .5);

-                  if (d > 9)
+                  if (d > 9.0)
                  {
                     /* Rounding up to 10, handle that here. */
                     if (czero > 0)
@@ -1621,9 +1625,10 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
                        --czero, d = 1;
                        if (cdigits == 0) --clead;
                     }
+
                     else
                     {
-                        while (cdigits > 0 && d > 9)
+                        while (cdigits > 0 && d > 9.0)
                        {
                           int ch = *--ascii;

@@ -1648,7 +1653,7 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
                         * exponent but take into account the leading
                         * decimal point.
                         */
-                        if (d > 9)  /* cdigits == 0 */
+                        if (d > 9.0)  /* cdigits == 0 */
                        {
                           if (exp_b10 == (-1))
                           {
@@ -1669,18 +1674,19 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
                              ++exp_b10;

                           /* In all cases we output a '1' */
-                           d = 1;
+                           d = 1.0;
                        }
                     }
                  }
                  fp = 0; /* Guarantees termination below. */
               }

-               if (d == 0)
+               if (d == 0.0)
               {
                  ++czero;
                  if (cdigits == 0) ++clead;
               }
+
               else
               {
                  /* Included embedded zeros in the digit count. */
@@ -1708,6 +1714,7 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
                                                                 above */
                     --exp_b10;
                  }
+
                  *ascii++ = (char)(48 + (int)d), ++cdigits;
               }
            }
@@ -2040,7 +2047,8 @@ png_muldiv_warn(png_structp png_ptr, png_fixed_point a, png_int_32 times,
 }
 #endif

-#ifdef PNG_READ_GAMMA_SUPPORTED /* more fixed point functions for gammma */
+#if (defined PNG_READ_GAMMA_SUPPORTED) || (defined PNG_cHRM_SUPPORTED)
+/* more fixed point functions for gamma and cHRM (xy/XYZ) suport. */
 /* Calculate a reciprocal, return 0 on div-by-zero or overflow. */
 png_fixed_point
 png_reciprocal(png_fixed_point a)
@@ -2060,6 +2068,7 @@ png_reciprocal(png_fixed_point a)
   return 0; /* error/overflow */
 }

+#ifdef PNG_READ_GAMMA_SUPPORTED
 /* A local convenience routine. */
 static png_fixed_point
 png_product2(png_fixed_point a, png_fixed_point b)
@@ -2081,6 +2090,7 @@ png_product2(png_fixed_point a, png_fixed_point b)

   return 0; /* overflow */
 }
+#endif /* READ_GAMMA */

 /* The inverse of the above. */
 png_fixed_point
@@ -2108,7 +2118,7 @@ png_reciprocal2(png_fixed_point a, png_fixed_point b)

   return 0; /* overflow */
 }
-#endif /* READ_GAMMA */
+#endif /* READ_GAMMA || cHRM */

 #ifdef PNG_CHECK_cHRM_SUPPORTED
 /* Added at libpng version 1.2.34 (Dec 8, 2008) and 1.4.0 (Jan 2,
@@ -2174,9 +2184,9 @@ png_64bit_product (long v1, long v2, unsigned long *hi_product,
 static png_uint_32
 png_8bit_l2[128] =
 {
-#  if PNG_DO_BC
+#  ifdef PNG_DO_BC
      for (i=128;i<256;++i) { .5 - l(i/255)/l(2)*65536*65536; }
-#  endif
+#  else
   4270715492U, 4222494797U, 4174646467U, 4127164793U, 4080044201U, 4033279239U,
   3986864580U, 3940795015U, 3895065449U, 3849670902U, 3804606499U, 3759867474U,
   3715449162U, 3671346997U, 3627556511U, 3584073329U, 3540893168U, 3498011834U,
@@ -2199,6 +2209,8 @@ png_8bit_l2[128] =
   324227938U, 298676034U, 273229066U, 247886176U, 222646516U, 197509248U,
   172473545U, 147538590U, 122703574U, 97967701U, 73330182U, 48790236U,
   24347096U, 0U
+#  endif
+
 #if 0
   /* The following are the values for 16-bit tables - these work fine for the
    * 8-bit conversions but produce very slightly larger errors in the 16-bit
@@ -2333,7 +2345,7 @@ png_log16bit(png_uint_32 x)
 * integer bits (the top 4) simply determine a shift.
 *
 * The worst case is the 16-bit distinction between 65535 and 65534, this
- * requires perhaps spurious accuracty in the decoding of the logarithm to
+ * requires perhaps spurious accuracy in the decoding of the logarithm to
 * distinguish log2(65535/65534.5) - 10^-5 or 17 bits.  There is little chance
 * of getting this accuracy in practice.
 *
@@ -2344,17 +2356,18 @@ png_log16bit(png_uint_32 x)
 static png_uint_32
 png_32bit_exp[16] =
 {
-#  if PNG_DO_BC
+#  ifdef PNG_DO_BC
      for (i=0;i<16;++i) { .5 + e(-i/16*l(2))*2^32; }
-#  endif
+#  else
   /* NOTE: the first entry is deliberately set to the maximum 32-bit value. */
   4294967295U, 4112874773U, 3938502376U, 3771522796U, 3611622603U, 3458501653U,
   3311872529U, 3171459999U, 3037000500U, 2908241642U, 2784941738U, 2666869345U,
   2553802834U, 2445529972U, 2341847524U, 2242560872U
+#  endif
 };

 /* Adjustment table; provided to explain the numbers in the code below. */
-#if PNG_DO_BC
+#ifdef PNG_DO_BC
 for (i=11;i>=0;--i){ print i, " ", (1 - e(-(2^i)/65536*l(2))) * 2^(32-i), "\n"}
   11 44937.64284865548751208448
   10 45180.98734845585101160448
@@ -2517,7 +2530,7 @@ png_gamma_significant(png_fixed_point gamma_val)
 }

 /* Internal function to build a single 16-bit table - the table consists of
- * 'num' 256 entry subtables, where 'num' is determined by 'shift' - the amount
+ * 'num' 256-entry subtables, where 'num' is determined by 'shift' - the amount
 * to shift the input values right (or 16-number_of_signifiant_bits).
 *
 * The caller is responsible for ensuring that the table gets cleaned up on
@@ -2604,9 +2617,9 @@ png_build_16to8_table(png_structp png_ptr, png_uint_16pp *ptable,
   png_uint_16pp table = *ptable =
       (png_uint_16pp)png_calloc(png_ptr, num * png_sizeof(png_uint_16p));

-   /* 'num' is the number of tables and also the number of low bits of low
-    * bits of the input 16-bit value used to select a table.  Each table is
-    * itself index by the high 8 bits of the value.
+   /* 'num' is the number of tables and also the number of low bits of the
+    * input 16-bit value used to select a table.  Each table is itself indexed
+    * by the high 8 bits of the value.
    */
   for (i = 0; i < num; i++)
      table[i] = (png_uint_16p)png_malloc(png_ptr,
@@ -2657,7 +2670,7 @@ png_build_16to8_table(png_structp png_ptr, png_uint_16pp *ptable,

 /* Build a single 8-bit table: same as the 16-bit case but much simpler (and
 * typically much faster).  Note that libpng currently does no sBIT processing
- * (apparently contrary to the spec) so a 256 entry table is always generated.
+ * (apparently contrary to the spec) so a 256-entry table is always generated.
 */
 static void
 png_build_8bit_table(png_structp png_ptr, png_bytepp ptable,
@@ -2793,7 +2806,7 @@ png_build_gamma_table(png_structp png_ptr, int bit_depth)
      * Where 'iv' is the input color value and 'ov' is the output value -
      * pow(iv, gamma).
      *
-      * Thus the gamma table consists of up to 256 256 entry tables.  The table
+      * Thus the gamma table consists of up to 256 256-entry tables.  The table
      * is selected by the (8-gamma_shift) most significant of the low 8 bits of
      * the color value then indexed by the upper 8 bits:
      *
@@ -2864,262 +2877,4 @@ png_build_gamma_table(png_structp png_ptr, int bit_depth)
  }
 }
 #endif /* READ_GAMMA */
-
-/* sRGB support */
-#if defined PNG_SIMPLIFIED_READ_SUPPORTED ||\
-   defined PNG_SIMPLIFIED_WRITE_SUPPORTED
-/* sRGB conversion tables; these are machine generated with the code in
- * contrib/sRGBtables/makesRGB.c.  The sRGB to linear table is exact (to the
- * nearest 16 bit linear fraction).  The inverse (linear to sRGB) table has
- * accuracies as follows:
- *
- * For all possible (255*65535+1) input values:
- *
- *    error: -0.515566 - 0.625971, 79441 (0.475369%) of readings inexact
- *
- * For the input values corresponding to the 65536 16-bit values:
- *
- *    error: -0.513727 - 0.607759, 308 (0.469978%) of readings inexact
- *
- * In all cases the inexact readings are off by one.
- */
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-/* The convert-to-sRGB table is only currently required for read. */
-PNG_CONST_DATA png_uint_16 png_sRGB_table[256] =
-{
-   0,20,40,60,80,99,119,139,
-   159,179,199,219,241,264,288,313,
-   340,367,396,427,458,491,526,562,
-   599,637,677,718,761,805,851,898,
-   947,997,1048,1101,1156,1212,1270,1330,
-   1391,1453,1517,1583,1651,1720,1790,1863,
-   1937,2013,2090,2170,2250,2333,2418,2504,
-   2592,2681,2773,2866,2961,3058,3157,3258,
-   3360,3464,3570,3678,3788,3900,4014,4129,
-   4247,4366,4488,4611,4736,4864,4993,5124,
-   5257,5392,5530,5669,5810,5953,6099,6246,
-   6395,6547,6700,6856,7014,7174,7335,7500,
-   7666,7834,8004,8177,8352,8528,8708,8889,
-   9072,9258,9445,9635,9828,10022,10219,10417,
-   10619,10822,11028,11235,11446,11658,11873,12090,
-   12309,12530,12754,12980,13209,13440,13673,13909,
-   14146,14387,14629,14874,15122,15371,15623,15878,
-   16135,16394,16656,16920,17187,17456,17727,18001,
-   18277,18556,18837,19121,19407,19696,19987,20281,
-   20577,20876,21177,21481,21787,22096,22407,22721,
-   23038,23357,23678,24002,24329,24658,24990,25325,
-   25662,26001,26344,26688,27036,27386,27739,28094,
-   28452,28813,29176,29542,29911,30282,30656,31033,
-   31412,31794,32179,32567,32957,33350,33745,34143,
-   34544,34948,35355,35764,36176,36591,37008,37429,
-   37852,38278,38706,39138,39572,40009,40449,40891,
-   41337,41785,42236,42690,43147,43606,44069,44534,
-   45002,45473,45947,46423,46903,47385,47871,48359,
-   48850,49344,49841,50341,50844,51349,51858,52369,
-   52884,53401,53921,54445,54971,55500,56032,56567,
-   57105,57646,58190,58737,59287,59840,60396,60955,
-   61517,62082,62650,63221,63795,64372,64952,65535
-};
-
-#endif /* simplified read only */
-
-/* The base/delta tables are required for both read and write (but currently
- * only the simplified versions.)
- */
-PNG_CONST_DATA png_uint_16 png_sRGB_base[512] =
-{
-   128,1782,3383,4644,5675,6564,7357,8074,
-   8732,9346,9921,10463,10977,11466,11935,12384,
-   12816,13233,13634,14024,14402,14769,15125,15473,
-   15812,16142,16466,16781,17090,17393,17690,17981,
-   18266,18546,18822,19093,19359,19621,19879,20133,
-   20383,20630,20873,21113,21349,21583,21813,22041,
-   22265,22487,22707,22923,23138,23350,23559,23767,
-   23972,24175,24376,24575,24772,24967,25160,25352,
-   25542,25730,25916,26101,26284,26465,26645,26823,
-   27000,27176,27350,27523,27695,27865,28034,28201,
-   28368,28533,28697,28860,29021,29182,29341,29500,
-   29657,29813,29969,30123,30276,30429,30580,30730,
-   30880,31028,31176,31323,31469,31614,31758,31902,
-   32045,32186,32327,32468,32607,32746,32884,33021,
-   33158,33294,33429,33564,33697,33831,33963,34095,
-   34226,34357,34486,34616,34744,34873,35000,35127,
-   35253,35379,35504,35629,35753,35876,35999,36122,
-   36244,36365,36486,36606,36726,36845,36964,37083,
-   37201,37318,37435,37551,37668,37783,37898,38013,
-   38127,38241,38354,38467,38580,38692,38803,38915,
-   39026,39136,39246,39356,39465,39574,39682,39790,
-   39898,40005,40112,40219,40325,40431,40537,40642,
-   40747,40851,40955,41059,41163,41266,41369,41471,
-   41573,41675,41777,41878,41979,42079,42179,42279,
-   42379,42478,42577,42676,42775,42873,42971,43068,
-   43165,43262,43359,43456,43552,43648,43743,43839,
-   43934,44028,44123,44217,44311,44405,44499,44592,
-   44685,44778,44870,44962,45054,45146,45238,45329,
-   45420,45511,45601,45692,45782,45872,45961,46051,
-   46140,46229,46318,46406,46494,46583,46670,46758,
-   46846,46933,47020,47107,47193,47280,47366,47452,
-   47538,47623,47709,47794,47879,47964,48048,48133,
-   48217,48301,48385,48468,48552,48635,48718,48801,
-   48884,48966,49048,49131,49213,49294,49376,49458,
-   49539,49620,49701,49782,49862,49943,50023,50103,
-   50183,50263,50342,50422,50501,50580,50659,50738,
-   50816,50895,50973,51051,51129,51207,51285,51362,
-   51439,51517,51594,51671,51747,51824,51900,51977,
-   52053,52129,52205,52280,52356,52432,52507,52582,
-   52657,52732,52807,52881,52956,53030,53104,53178,
-   53252,53326,53400,53473,53546,53620,53693,53766,
-   53839,53911,53984,54056,54129,54201,54273,54345,
-   54417,54489,54560,54632,54703,54774,54845,54916,
-   54987,55058,55129,55199,55269,55340,55410,55480,
-   55550,55620,55689,55759,55828,55898,55967,56036,
-   56105,56174,56243,56311,56380,56448,56517,56585,
-   56653,56721,56789,56857,56924,56992,57059,57127,
-   57194,57261,57328,57395,57462,57529,57595,57662,
-   57728,57795,57861,57927,57993,58059,58125,58191,
-   58256,58322,58387,58453,58518,58583,58648,58713,
-   58778,58843,58908,58972,59037,59101,59165,59230,
-   59294,59358,59422,59486,59549,59613,59677,59740,
-   59804,59867,59930,59993,60056,60119,60182,60245,
-   60308,60370,60433,60495,60558,60620,60682,60744,
-   60806,60868,60930,60992,61054,61115,61177,61238,
-   61300,61361,61422,61483,61544,61605,61666,61727,
-   61788,61848,61909,61969,62030,62090,62150,62211,
-   62271,62331,62391,62450,62510,62570,62630,62689,
-   62749,62808,62867,62927,62986,63045,63104,63163,
-   63222,63281,63340,63398,63457,63515,63574,63632,
-   63691,63749,63807,63865,63923,63981,64039,64097,
-   64155,64212,64270,64328,64385,64443,64500,64557,
-   64614,64672,64729,64786,64843,64900,64956,65013,
-   65070,65126,65183,65239,65296,65352,65409,65465
-};
-
-PNG_CONST_DATA png_byte png_sRGB_delta[512] =
-{
-   207,201,158,129,113,100,90,82,77,72,68,64,61,59,56,54,
-   52,50,49,47,46,45,43,42,41,40,39,39,38,37,36,36,
-   35,34,34,33,33,32,32,31,31,30,30,30,29,29,28,28,
-   28,27,27,27,27,26,26,26,25,25,25,25,24,24,24,24,
-   23,23,23,23,23,22,22,22,22,22,22,21,21,21,21,21,
-   21,20,20,20,20,20,20,20,20,19,19,19,19,19,19,19,
-   19,18,18,18,18,18,18,18,18,18,18,17,17,17,17,17,
-   17,17,17,17,17,17,16,16,16,16,16,16,16,16,16,16,
-   16,16,16,16,15,15,15,15,15,15,15,15,15,15,15,15,
-   15,15,15,15,14,14,14,14,14,14,14,14,14,14,14,14,
-   14,14,14,14,14,14,14,13,13,13,13,13,13,13,13,13,
-   13,13,13,13,13,13,13,13,13,13,13,13,13,13,12,12,
-   12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,
-   12,12,12,12,12,12,12,12,12,12,12,12,11,11,11,11,
-   11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
-   11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
-   11,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
-   10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
-   10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
-   10,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
-   9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
-   9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
-   9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
-   9,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-   8,8,8,8,8,8,8,8,8,7,7,7,7,7,7,7,
-   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
-};
-#endif /* SIMPLIFIED READ/WRITE sRGB support */
-
-/* SIMPLIFIED READ/WRITE SUPPORT */
-#if defined PNG_SIMPLIFIED_READ_SUPPORTED ||\
-   defined PNG_SIMPLIFIED_WRITE_SUPPORTED
-static int
-png_image_free_function(png_voidp argument)
-{
-   png_imagep image = png_voidcast(png_imagep, argument);
-   png_controlp cp = image->opaque;
-   png_control c;
-
-   /* Double check that we have a png_ptr - it should be impossible to get here
-    * without one.
-    */
-   if (cp->png_ptr == NULL)
-      return 0;
-
-   /* First free any data held in the control structure. */
-#  ifdef PNG_STDIO_SUPPORTED
-      if (cp->owned_file)
-      {
-         FILE *fp = png_voidcast(FILE*, cp->png_ptr->io_ptr);
-         cp->owned_file = 0;
-
-         /* Ignore errors here. */
-         if (fp != NULL)
-         {
-            cp->png_ptr->io_ptr = NULL;
-            (void)fclose(fp);
-         }
-      }
-#  endif
-
-   /* Copy the control structure so that the original, allocated, version can be
-    * safely freed.  Notice that a png_error here stops the remainder of the
-    * cleanup, but this is probably fine because that would indicate bad memory
-    * problems anyway.
-    */
-   c = *cp;
-   image->opaque = &c;
-   png_free(c.png_ptr, cp);
-
-   /* Then the structures, calling the correct API. */
-   if (c.for_write)
-   {
-#     ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-         png_destroy_write_struct(&c.png_ptr, &c.info_ptr);
-#     else
-         png_error(c.png_ptr, "simplified write not supported");
-#     endif
-   }
-   else
-   {
-#     ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-         png_destroy_read_struct(&c.png_ptr, &c.info_ptr, NULL);
-#     else
-         png_error(c.png_ptr, "simplified read not supported");
-#     endif
-   }
-
-   /* Success. */
-   return 1;
-}
-
-void PNGAPI
-png_image_free(png_imagep image)
-{
-   /* Safely call the real function, but only if doing so is safe at this point
-    * (if not inside an error handling context).  Otherwise assume
-    * png_safe_execute will call this API after the return.
-    */
-   if (image != NULL && image->opaque != NULL &&
-      image->opaque->error_buf == NULL)
-   {
-      /* Ignore errors here: */
-      (void)png_safe_execute(image, png_image_free_function, image);
-      image->opaque = NULL;
-   }
-}
-
-int /* PRIVATE */
-png_image_error(png_imagep image, png_const_charp error_message)
-{
-   /* Utility to log an error. */
-   png_safecat(image->message, sizeof image->message, 0, error_message);
-   image->warning_or_error = 1;
-   png_image_free(image);
-   return 0;
-}
-
-#endif /* SIMPLIFIED READ/WRITE */
 #endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
--- a/png.h
+++ b/png.h
@@ -1,8 +1,8 @@

 /* png.h - header file for PNG reference library
 *
- * libpng version 1.5.7beta05 - November 22, 2011
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * libpng version 1.5.14beta08 - January 10, 2013
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -11,7 +11,7 @@
 * Authors and maintainers:
 *   libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
 *   libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *   libpng versions 0.97, January 1998, through 1.5.7beta05 - November 22, 2011: Glenn
+ *   libpng versions 0.97, January 1998, through 1.5.14beta08 - January 10, 2013: Glenn
 *   See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@@ -164,6 +164,24 @@
 *    1.5.6rc01-03            15    10506  15.so.15.6[.0]
 *    1.5.6                   15    10506  15.so.15.6[.0]
 *    1.5.7beta01-05          15    10507  15.so.15.7[.0]
+ *    1.5.7rc01-03            15    10507  15.so.15.7[.0]
+ *    1.5.7                   15    10507  15.so.15.7[.0]
+ *    1.5.8beta01             15    10508  15.so.15.8[.0]
+ *    1.5.8rc01               15    10508  15.so.15.8[.0]
+ *    1.5.8                   15    10508  15.so.15.8[.0]
+ *    1.5.9beta01-02          15    10509  15.so.15.9[.0]
+ *    1.5.9rc01               15    10509  15.so.15.9[.0]
+ *    1.5.9                   15    10509  15.so.15.9[.0]
+ *    1.5.10beta01-05         15    10510  15.so.15.10[.0]
+ *    1.5.10                  15    10510  15.so.15.10[.0]
+ *    1.5.11beta01            15    10511  15.so.15.11[.0]
+ *    1.5.11rc01-05           15    10511  15.so.15.11[.0]
+ *    1.5.11                  15    10511  15.so.15.11[.0]
+ *    1.5.12                  15    10512  15.so.15.12[.0]
+ *    1.5.13beta01-02         15    10513  15.so.15.13[.0]
+ *    1.5.13rc01              15    10513  15.so.15.13[.0]
+ *    1.5.13                  15    10513  15.so.15.13[.0]
+ *    1.5.14beta01-08         15    10514  15.so.15.14[.0]
 *
 *   Henceforth the source version will match the shared-library major
 *   and minor numbers; the shared-library major version number will be
@@ -173,7 +191,7 @@
 *   to the source version x.y.z (leading zeros in y and z).  Beta versions
 *   were given the previous public release number plus a letter, until
 *   version 1.0.6j; from then on they were given the upcoming public
- *   release number plus "betaNN" or "rcN".
+ *   release number plus "betaNN" or "rcNN".
 *
 *   Binary incompatibility exists only when applications make direct access
 *   to the info_ptr or png_ptr members through png.h, and the compiled
@@ -195,8 +213,8 @@
 *
 * This code is released under the libpng license.
 *
- * libpng versions 1.2.6, August 15, 2004, through 1.5.7beta05, November 22, 2011, are
- * Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.14beta08, January 10, 2013, are
+ * Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are
 * distributed according to the same disclaimer and license as libpng-1.2.5
 * with the following individual added to the list of Contributing Authors:
 *
@@ -307,13 +325,13 @@
 * Y2K compliance in libpng:
 * =========================
 *
- *    November 22, 2011
+ *    January 10, 2013
 *
 *    Since the PNG Development group is an ad-hoc body, we can't make
 *    an official declaration.
 *
 *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.5.7beta05 are Y2K compliant.  It is my belief that
+ *    upward through 1.5.14beta08 are Y2K compliant.  It is my belief that
 *    earlier versions were also Y2K compliant.
 *
 *    Libpng only has two year fields.  One is a 2-byte unsigned integer
@@ -324,7 +342,8 @@
 *        "png_uint_16 year" in png_time_struct.
 *
 *    The string is
- *        "png_char time_buffer" in png_struct
+ *        "char time_buffer[29]" in png_struct.  This will be no
+ *    longer used in libpng-1.6.0 and will be removed from libpng-1.7.0.
 *
 *    There are seven time-related functions:
 *        png.c: png_convert_to_rfc_1123() in png.c
@@ -371,9 +390,9 @@
 */

 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.5.7beta05"
+#define PNG_LIBPNG_VER_STRING "1.5.14beta08"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.5.7beta05 - November 22, 2011\n"
+     " libpng version 1.5.14beta08 - January 10, 2013\n"

 #define PNG_LIBPNG_VER_SONUM   15
 #define PNG_LIBPNG_VER_DLLNUM  15
@@ -381,12 +400,13 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   5
-#define PNG_LIBPNG_VER_RELEASE 7
+#define PNG_LIBPNG_VER_RELEASE 14
+
 /* This should match the numeric part of the final component of
 * PNG_LIBPNG_VER_STRING, omitting any leading zero:
 */

-#define PNG_LIBPNG_VER_BUILD  02
+#define PNG_LIBPNG_VER_BUILD  08

 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -411,7 +431,7 @@
 * version 1.0.0 was mis-numbered 100 instead of 10000).  From
 * version 1.0.1 it's    xxyyzz, where x=major, y=minor, z=release
 */
-#define PNG_LIBPNG_VER 10507 /* 1.5.7 */
+#define PNG_LIBPNG_VER 10514 /* 1.5.14 */

 /* Library configuration: these options cannot be changed after
 * the library has been built.
@@ -491,7 +511,6 @@ extern "C" {
 * 2. Type definitions (base types are defined in pngconf.h), structure
 *    definitions.
 * 3. Exported library functions.
- * 4. Simplified API.
 *
 * The library source code has additional files (principally pngpriv.h) that
 * allow configuration of the library.
@@ -534,7 +553,7 @@ extern "C" {
 /* This triggers a compiler error in png.c, if png.c and png.h
 * do not agree upon the version number.
 */
-typedef char* png_libpng_version_1_5_7beta05;
+typedef char* png_libpng_version_1_5_14beta08;

 /* Three color definitions.  The order of the red, green, and blue, (and the
 * exact size) is not important, although the size of the fields need to
@@ -1143,9 +1162,9 @@ PNG_EXPORT(31, void, png_set_gray_to_rgb, (png_structp png_ptr));
 #define PNG_RGB_TO_GRAY_DEFAULT (-1)/*for red/green coefficients*/

 PNG_FP_EXPORT(32, void, png_set_rgb_to_gray, (png_structp png_ptr,
-    int error_action, double red, double green));
+    int error_action, double red, double green))
 PNG_FIXED_EXPORT(33, void, png_set_rgb_to_gray_fixed, (png_structp png_ptr,
-    int error_action, png_fixed_point red, png_fixed_point green));
+    int error_action, png_fixed_point red, png_fixed_point green))

 PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (png_const_structp
    png_ptr));
@@ -1213,9 +1232,9 @@ PNG_EXPORT(35, void, png_build_grayscale_palette, (int bit_depth,
 #define PNG_ALPHA_BROKEN        3 /* the alpha channel is gamma encoded */

 PNG_FP_EXPORT(227, void, png_set_alpha_mode, (png_structp png_ptr, int mode,
-    double output_gamma));
+    double output_gamma))
 PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structp png_ptr,
-    int mode, png_fixed_point output_gamma));
+    int mode, png_fixed_point output_gamma))
 #endif

 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_ALPHA_MODE_SUPPORTED)
@@ -1438,10 +1457,10 @@ PNG_EXPORT(46, void, png_set_invert_mono, (png_structp png_ptr));
 */
 PNG_FP_EXPORT(47, void, png_set_background, (png_structp png_ptr,
    png_const_color_16p background_color, int background_gamma_code,
-    int need_expand, double background_gamma));
+    int need_expand, double background_gamma))
 PNG_FIXED_EXPORT(215, void, png_set_background_fixed, (png_structp png_ptr,
    png_const_color_16p background_color, int background_gamma_code,
-    int need_expand, png_fixed_point background_gamma));
+    int need_expand, png_fixed_point background_gamma))
 #endif
 #ifdef PNG_READ_BACKGROUND_SUPPORTED
 #  define PNG_BACKGROUND_GAMMA_UNKNOWN 0
@@ -1490,9 +1509,9 @@ PNG_EXPORT(49, void, png_set_quantize,
 */
 PNG_FP_EXPORT(50, void, png_set_gamma,
    (png_structp png_ptr, double screen_gamma,
-    double override_file_gamma));
+    double override_file_gamma))
 PNG_FIXED_EXPORT(208, void, png_set_gamma_fixed, (png_structp png_ptr,
-    png_fixed_point screen_gamma, png_fixed_point override_file_gamma));
+    png_fixed_point screen_gamma, png_fixed_point override_file_gamma))
 #endif

 #ifdef PNG_WRITE_FLUSH_SUPPORTED
@@ -1652,11 +1671,11 @@ PNG_EXPORT(67, void, png_set_filter,
 */
 PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structp png_ptr,
    int heuristic_method, int num_weights, png_const_doublep filter_weights,
-    png_const_doublep filter_costs));
+    png_const_doublep filter_costs))
 PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
    (png_structp png_ptr,
    int heuristic_method, int num_weights, png_const_fixed_point_p
-    filter_weights, png_const_fixed_point_p filter_costs));
+    filter_weights, png_const_fixed_point_p filter_costs))
 #endif /*  PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */

 /* Heuristic used for row filter selection.  These defines should NOT be
@@ -2038,9 +2057,9 @@ PNG_EXPORT(124, png_uint_32, png_get_y_pixels_per_meter,

 /* Returns pixel aspect ratio, computed from pHYs chunk data.  */
 PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio,
-    (png_const_structp png_ptr, png_const_infop info_ptr));
+    (png_const_structp png_ptr, png_const_infop info_ptr))
 PNG_FIXED_EXPORT(210, png_fixed_point, png_get_pixel_aspect_ratio_fixed,
-    (png_const_structp png_ptr, png_const_infop info_ptr));
+    (png_const_structp png_ptr, png_const_infop info_ptr))

 /* Returns image x, y offset in pixels or microns, from oFFs chunk data. */
 PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels,
@@ -2073,11 +2092,11 @@ PNG_EXPORT(132, void, png_set_bKGD, (png_structp png_ptr, png_infop info_ptr,
 PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (png_const_structp png_ptr,
   png_const_infop info_ptr, double *white_x, double *white_y, double *red_x,
    double *red_y, double *green_x, double *green_y, double *blue_x,
-    double *blue_y));
+    double *blue_y))
 PNG_FP_EXPORT(230, png_uint_32, png_get_cHRM_XYZ, (png_structp png_ptr,
    png_const_infop info_ptr, double *red_X, double *red_Y, double *red_Z,
    double *green_X, double *green_Y, double *green_Z, double *blue_X,
-    double *blue_Y, double *blue_Z));
+    double *blue_Y, double *blue_Z))
 #ifdef PNG_FIXED_POINT_SUPPORTED /* Otherwise not implemented */
 PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed,
    (png_const_structp png_ptr,
@@ -2085,7 +2104,7 @@ PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed,
    png_fixed_point *int_white_y, png_fixed_point *int_red_x,
    png_fixed_point *int_red_y, png_fixed_point *int_green_x,
    png_fixed_point *int_green_y, png_fixed_point *int_blue_x,
-    png_fixed_point *int_blue_y));
+    png_fixed_point *int_blue_y))
 #endif
 PNG_FIXED_EXPORT(231, png_uint_32, png_get_cHRM_XYZ_fixed,
    (png_structp png_ptr, png_const_infop info_ptr,
@@ -2093,46 +2112,46 @@ PNG_FIXED_EXPORT(231, png_uint_32, png_get_cHRM_XYZ_fixed,
    png_fixed_point *int_red_Z, png_fixed_point *int_green_X,
    png_fixed_point *int_green_Y, png_fixed_point *int_green_Z,
    png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
-    png_fixed_point *int_blue_Z));
+    png_fixed_point *int_blue_Z))
 #endif

 #ifdef PNG_cHRM_SUPPORTED
 PNG_FP_EXPORT(135, void, png_set_cHRM,
    (png_structp png_ptr, png_infop info_ptr,
    double white_x, double white_y, double red_x, double red_y, double green_x,
-    double green_y, double blue_x, double blue_y));
+    double green_y, double blue_x, double blue_y))
 PNG_FP_EXPORT(232, void, png_set_cHRM_XYZ, (png_structp png_ptr,
    png_infop info_ptr, double red_X, double red_Y, double red_Z,
    double green_X, double green_Y, double green_Z, double blue_X,
-    double blue_Y, double blue_Z));
+    double blue_Y, double blue_Z))
 PNG_FIXED_EXPORT(136, void, png_set_cHRM_fixed, (png_structp png_ptr,
    png_infop info_ptr, png_fixed_point int_white_x,
    png_fixed_point int_white_y, png_fixed_point int_red_x,
    png_fixed_point int_red_y, png_fixed_point int_green_x,
    png_fixed_point int_green_y, png_fixed_point int_blue_x,
-    png_fixed_point int_blue_y));
+    png_fixed_point int_blue_y))
 PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_structp png_ptr,
    png_infop info_ptr, png_fixed_point int_red_X, png_fixed_point int_red_Y,
    png_fixed_point int_red_Z, png_fixed_point int_green_X,
    png_fixed_point int_green_Y, png_fixed_point int_green_Z,
    png_fixed_point int_blue_X, png_fixed_point int_blue_Y,
-    png_fixed_point int_blue_Z));
+    png_fixed_point int_blue_Z))
 #endif

 #ifdef PNG_gAMA_SUPPORTED
 PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA,
    (png_const_structp png_ptr, png_const_infop info_ptr,
-    double *file_gamma));
+    double *file_gamma))
 PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed,
    (png_const_structp png_ptr, png_const_infop info_ptr,
-    png_fixed_point *int_file_gamma));
+    png_fixed_point *int_file_gamma))
 #endif

 #ifdef PNG_gAMA_SUPPORTED
 PNG_FP_EXPORT(139, void, png_set_gAMA, (png_structp png_ptr,
-    png_infop info_ptr, double file_gamma));
+    png_infop info_ptr, double file_gamma))
 PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_structp png_ptr,
-    png_infop info_ptr, png_fixed_point int_file_gamma));
+    png_infop info_ptr, png_fixed_point int_file_gamma))
 #endif

 #ifdef PNG_hIST_SUPPORTED
@@ -2298,7 +2317,7 @@ PNG_EXPORT(167, void, png_set_tRNS,
 #ifdef PNG_sCAL_SUPPORTED
 PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL,
    (png_const_structp png_ptr, png_const_infop info_ptr,
-    int *unit, double *width, double *height));
+    int *unit, double *width, double *height))
 #ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
 /* NOTE: this API is currently implemented using floating point arithmetic,
 * consequently it can only be used on systems with floating point support.
@@ -2308,7 +2327,7 @@ PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL,
 PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed,
    (png_structp png_ptr, png_const_infop info_ptr, int *unit,
    png_fixed_point *width,
-    png_fixed_point *height));
+    png_fixed_point *height))
 #endif
 PNG_EXPORT(169, png_uint_32, png_get_sCAL_s,
    (png_const_structp png_ptr, png_const_infop info_ptr,
@@ -2316,10 +2335,10 @@ PNG_EXPORT(169, png_uint_32, png_get_sCAL_s,

 PNG_FP_EXPORT(170, void, png_set_sCAL,
    (png_structp png_ptr, png_infop info_ptr,
-    int unit, double width, double height));
+    int unit, double width, double height))
 PNG_FIXED_EXPORT(213, void, png_set_sCAL_fixed, (png_structp png_ptr,
   png_infop info_ptr, int unit, png_fixed_point width,
-   png_fixed_point height));
+   png_fixed_point height))
 PNG_EXPORT(171, void, png_set_sCAL_s,
    (png_structp png_ptr, png_infop info_ptr,
    int unit, png_const_charp swidth, png_const_charp sheight));
@@ -2432,17 +2451,17 @@ PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch,
    (png_const_structp png_ptr, png_const_infop info_ptr));

 PNG_FP_EXPORT(196, float, png_get_x_offset_inches,
-    (png_const_structp png_ptr, png_const_infop info_ptr));
+    (png_const_structp png_ptr, png_const_infop info_ptr))
 #ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
 PNG_FIXED_EXPORT(211, png_fixed_point, png_get_x_offset_inches_fixed,
-    (png_structp png_ptr, png_const_infop info_ptr));
+    (png_structp png_ptr, png_const_infop info_ptr))
 #endif

 PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (png_const_structp png_ptr,
-    png_const_infop info_ptr));
+    png_const_infop info_ptr))
 #ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
 PNG_FIXED_EXPORT(212, png_fixed_point, png_get_y_offset_inches_fixed,
-    (png_structp png_ptr, png_const_infop info_ptr));
+    (png_structp png_ptr, png_const_infop info_ptr))
 #endif

 #  ifdef PNG_pHYs_SUPPORTED
@@ -2629,296 +2648,12 @@ PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i));
      : (png_int_32)png_get_uint_32(buf)))
 #endif

-/*******************************************************************************
- *  SIMPLIFIED API
- *******************************************************************************
- *
- * Please read the documentation in libpng-manual.txt if you don't understand
- * what follows.
- *
- * The simplified API hides the details of both libpng and the PNG file format
- * itself.  It allows PNG files to be read into a very limited number of
- * in-memory bitmap formats or to be written from the same formats.  If these
- * formats do not accomodate your needs then you can, and should, use the more
- * sophisticated APIs above - these support a wide variety of in-memory formats
- * and a wide variety of sophisticated transformations to those formats as well
- * as a wide variety of APIs to manipulate ancilliary information.
- *
- * To read a PNG file using the simplified API:
- *
- * 1) Declare a 'png_image' structure (see below) on the stack and memset() it
- * to all zero.
- * 2) Call the appropriate png_image_begin_read... function.
- * 3) Set the png_image 'format' member to the required format and allocate a
- * buffer for the image.
- * 4) Call png_image_finish_read to read the image into your buffer.
- *
- * There are no restrictions on the format of the PNG input itself; all valid
- * color types, bit depths, and interlace methods are acceptable, and the
- * input image is transformed as necessary to the requested in-memory format
- * during the png_image_finish_read() step.
- *
- * To write a PNG file using the simplified API:
- *
- * 1) Declare a 'png_image' structure on the stack and memset() it to all zero.
- * 2) Initialize the members of the structure that describe the image, setting
- * the 'format' member to the format of the image in memory.
- * 3) Call the appropriate png_image_write... function with a pointer to the
- * image to write the PNG data.
- *
- * png_image is a structure that describes the in-memory format of an image
- * when it is being read or define the in-memory format of an image that you
- * need to write:
- *
- */
-
-typedef struct png_control *png_controlp;
-typedef struct
-{
-   png_uint_32  width;  /* Image width in pixels (columns) */
-   png_uint_32  height; /* Image height in pixels (rows) */
-   png_uint_32  format; /* Image format as defined below */
-   png_uint_32  flags;  /* A bit mask containing informational flags */
-   png_controlp opaque; /* Initialize to NULL, free with png_image_free */
-
-   /* In the event of an error or warning the following field will be set to a
-    * non-zero value and the 'message' field will contain a '\0' terminated
-    * string with the libpng error or warning message.  If both warnings and
-    * an error were encountered, only the error is recorded.  If there
-    * are multiple warnings, only the first one is recorded.
-    *
-    * As of libpng-1.5.7 the values are
-    *    0 - no warning or error
-    *    1 - error
-    *    2 - warning
-    */
-   png_uint_32  warning_or_error;
-   char         message[64];
-} png_image, *png_imagep;
-
-/* The pixels (samples) of the image have one to four channels whose components
- * have original values in the range 0 to 1.0:
- *
- * 1: A single gray or luminance channel (G).
- * 2: A gray/luminance channel and an alpha channel (GA).
- * 3: Three red, green, blue color channels (RGB).
- * 4: Three color channels and an alpha channel (RGBA).
- *
- * The channels are encoded in one of two ways:
- *
- * a) As a small integer, value 0..255, contained in a (png_byte).  For the
- * alpha channel the original value is simply value/255.  For the color or
- * luminance channels the value is encoded according to the sRGB specification
- * and matches the 8-bit format expected by typical display devices.
- *
- *    The color/gray channels are not scaled (pre-multiplied) by the alpha
- * channel and are suitable for passing to color management software.
- *
- * b) As a value in the range 0..65535, contained in a (png_uint_16).  All
- * channels can be converted to the original value by dividing by 65535; all
- * channels are linear.  Color channels use the RGB encoding (RGB end-points) of
- * the sRGB specification.  This encoding is identified by the
- * PNG_FORMAT_FLAG_LINEAR flag below.
- *
- *    When an alpha channel is present it is expected to denote pixel coverage
- * of the color or luminance channels and is returned as an associated alpha
- * channel: the color/gray channels are scaled (pre-multiplied) by the alpha
- * value.
- */
-
-/* PNG_FORMAT_*
- *
- * #defines to be used in png_image::format.  Each #define identifies a
- * particular layout of channel data and, if present, alpha values.  There are
- * separate defines for each of the two channel encodings.
- *
- * A format is built up using single bit flag values.  Not all combinations are
- * valid: use the bit flag values below for testing a format returned by the
- * read APIs, but set formats from the derived values.
- *
- * NOTE: libpng can be built with particular features disabled, if you see
- * compiler errors because the definition of one of the following flags has been
- * compiled out it is because libpng does not have the required support.  It is
- * possible, however, for the libpng configuration to enable the format on just
- * read or just write; in that case you may see an error at run time.  You can
- * guard against this by checking for the definition of:
- *
- *    PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED
- */
-#define PNG_FORMAT_FLAG_ALPHA    0x01 /* format with an alpha channel */
-#define PNG_FORMAT_FLAG_COLOR    0x02 /* color format: otherwise grayscale */
-#define PNG_FORMAT_FLAG_LINEAR   0x04 /* png_uint_16 channels else png_byte */
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
-#  define PNG_FORMAT_FLAG_BGR    0x08 /* BGR colors, else order is RGB */
+#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
+    defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
+PNG_EXPORT(234, void, png_set_check_for_invalid_index, (png_structp png_ptr,
+    int allowed));
 #endif

-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
-#  define PNG_FORMAT_FLAG_AFIRST 0x10 /* alpha channel comes first */
-#endif
-
-/* Supported formats are as follows.  Future versions of libpng may support more
- * formats; for compatibility with older versions simply check if the format
- * macro is defined using #ifdef.  These defines describe the in-memory layout
- * of the components of the pixels of the image.
- *
- * First the single byte formats:
- */
-#define PNG_FORMAT_GRAY 0
-#define PNG_FORMAT_GA   PNG_FORMAT_FLAG_ALPHA
-#define PNG_FORMAT_AG   (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST)
-#define PNG_FORMAT_RGB  PNG_FORMAT_FLAG_COLOR
-#define PNG_FORMAT_BGR  (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR)
-#define PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA)
-#define PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST)
-#define PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA)
-#define PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST)
-
-/* Then the linear (png_uint_16) formats.  When naming these "Y" is used to
- * indicate a luminance (gray) channel.  The component order within the pixel
- * is always the same - there is no provision for swapping the order of the
- * components in the linear format.
- */
-#define PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR
-#define PNG_FORMAT_LINEAR_Y_ALPHA (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA)
-#define PNG_FORMAT_LINEAR_RGB (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR)
-#define PNG_FORMAT_LINEAR_RGB_ALPHA \
-   (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA)
-
-/* PNG_IMAGE macros
- *
- * These are convenience macros to derive information from a png_image structure
- */
-#define PNG_IMAGE_CHANNELS(fmt)\
-   (1+((fmt)&(PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA)))
-   /* Return the total number of channels in a given format: 1..4 */
-
-#define PNG_IMAGE_COMPONENT_SIZE(fmt)\
-   (((fmt) & PNG_FORMAT_FLAG_LINEAR) ? sizeof (png_uint_16) : sizeof (png_byte))
-   /* Return the size in bytes of a single component of a pixel in the image. */
-
-#define PNG_IMAGE_PIXEL_SIZE(fmt)\
-   (PNG_IMAGE_CHANNELS(fmt) * PNG_IMAGE_COMPONENT_SIZE(fmt))
-   /* Return the size in bytes of a single pixel in the image. */
-   
-#define PNG_IMAGE_ROW_STRIDE(image)\
-   (PNG_IMAGE_CHANNELS((image).format) * (image).width)
-   /* Return the total number of components in a single row of the image; this
-    * is the minimum 'row stride', the minimum count of components between each
-    * row.
-    */
-
-#define PNG_IMAGE_BUFFER_SIZE(image, row_stride)\
-   (PNG_IMAGE_COMPONENT_SIZE((image).format) * (image).height * (row_stride))
-   /* Return the size, in bytes, of an image buffer given a png_image and a row
-    * stride - the number of components to leave space for in each row.
-    */
-
-#define PNG_IMAGE_SIZE(image)\
-   PNG_IMAGE_BUFFER_SIZE(image, PNG_IMAGE_ROW_STRIDE(image))
-   /* Return the size, in bytes, of the image in memory given just a png_image;
-    * the row stride is the minimum stride required for the image.
-    */
-
-/* PNG_IMAGE_FLAG_*
- *
- * Flags containing additional information about the image are held in the
- * 'flags' field of png_image.
- */
-#define PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 1
-   /* This indicates the the RGB values of the in-memory bitmap do not
-    * correspond to the red, green and blue end-points defined by sRGB.
-    */
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-/* READ APIs
- * ---------
- *
- * The png_image passed to the read APIs must have been initialized by setting
- * the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.)
- */
-#ifdef PNG_STDIO_SUPPORTED
-PNG_EXPORT(234, int, png_image_begin_read_from_file, (png_imagep image,
-   const char *file_name));
-   /* The named file is opened for read and the image header is filled in
-    * from the PNG header in the file.
-    */
-
-PNG_EXPORT(235, int, png_image_begin_read_from_stdio, (png_imagep image,
-   FILE* file));
-   /* The PNG header is read from the stdio FILE object. */
-#endif /* PNG_STDIO_SUPPORTED */
-
-PNG_EXPORT(236, int, png_image_begin_read_from_memory, (png_imagep image,
-   png_const_voidp memory, png_size_t size));
-   /* The PNG header is read from the given memory buffer. */
-
-PNG_EXPORT(237, int, png_image_finish_read, (png_imagep image,
-   png_colorp background, void *buffer, png_int_32 row_stride));
-   /* Finish reading the image into the supplied buffer and clean up the
-    * png_image structure.
-    *
-    * row_stride is the step, in png_byte or png_uint_16 units as appropriate,
-    * between adjacent rows.  A positive stride indicates that the top-most row
-    * is first in the buffer - the normal top-down arrangement.  A negative
-    * stride indicates that the bottom-most row is first in the buffer.
-    *
-    * background need only be supplied if an alpha channel must be removed from
-    * a png_byte format and the removal is to be done by compositing on a solid
-    * color; otherwise it may be NULL and any composition will be done directly
-    * onto the buffer.  The value is an sRGB color to use for the background,
-    * for grayscale output the green channel is used.
-    *
-    * For linear output removing the alpha channel is always done by compositing
-    * on black.
-    */
-
-PNG_EXPORT(238, void, png_image_free, (png_imagep image));
-   /* Free any data allocated by libpng in image->opaque, setting the pointer to
-    * NULL.  May be called at any time after the structure is initialized.
-    */
-#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */
-
-#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-/* WRITE APIS
- * ----------
- * For write you must initialize a png_image structure to describe the image to
- * be written:
- *
- * opaque: must be initialized to NULL
- * width: image width in pixels
- * height: image height in rows
- * format: the format of the data you wish to write
- * flags: set to 0 unless one of the defined flags applies; set
- *    PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images where the RGB
- *    values do not correspond to the colors in sRGB.
- */
-PNG_EXPORT(239, int, png_image_write_to_file, (png_imagep image,
-   const char *file, int convert_to_8bit, const void *buffer,
-   png_int_32 row_stride));
-   /* Write the image to the named file. */
-
-PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file,
-   int convert_to_8_bit, const void *buffer, png_int_32 row_stride));
-   /* Write the image to the given (FILE*). */
-
-/* With all write APIs if image is in one of the linear formats with
- * (png_uint_16) data then setting convert_to_8_bit will cause the output to be
- * a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise
- * a 16-bit linear encoded PNG file is written.
- *
- * With all APIs row_stride is handled as in the read APIs - it is the spacing
- * from one row to the next in component sized units (float) and if negative
- * indicates a bottom-up row layout in the buffer.
- *
- * Note that the write API does not support interlacing, sub-8-bit pixels,
- * and indexed (paletted) images.
- */
-#endif /* PNG_SIMPLIFIED_WRITE_SUPPORTED */
-/*******************************************************************************
- *  END OF SIMPLIFIED API
- ******************************************************************************/
-
 /* Maintainer: Put new public prototypes here ^, in libpng.3, and project
 * defs
 */
@@ -2928,7 +2663,7 @@ PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file,
 * scripts/symbols.def as well.
 */
 #ifdef PNG_EXPORT_LAST_ORDINAL
-  PNG_EXPORT_LAST_ORDINAL(240);
+  PNG_EXPORT_LAST_ORDINAL(234);
 #endif

 #ifdef __cplusplus
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,9 +1,9 @@

 /* pngconf.h - machine configurable file for libpng
 *
- * libpng version 1.5.7beta05 - November 18, 2011
+ * libpng version 1.5.14beta08 - January 10, 2013
 *
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -25,7 +25,7 @@
 #ifndef PNG_BUILDING_SYMBOL_TABLE
 /* PNG_NO_LIMITS_H may be used to turn off the use of the standard C
 * definition file for  machine specific limits, this may impact the
- * correctness of the definitons below (see uses of INT_MAX).
+ * correctness of the definitions below (see uses of INT_MAX).
 */
 #  ifndef PNG_NO_LIMITS_H
 #    include <limits.h>
@@ -51,8 +51,8 @@

 /* This controls optimization of the reading of 16 and 32 bit values
 * from PNG files.  It can be set on a per-app-file basis - it
- * just changes whether a macro is used to the function is called.
- * The library builder sets the default, if read functions are not
+ * just changes whether a macro is used when the function is called.
+ * The library builder sets the default; if read functions are not
 * built into the library the macro implementation is forced on.
 */
 #ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED
@@ -177,18 +177,16 @@
 * ==========================
 * This code is used at build time to find PNG_IMPEXP, the API settings
 * and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL
- * import processing is possible.  On Windows/x86 systems it also sets
+ * import processing is possible.  On Windows systems it also sets
 * compiler-specific macros to the values required to change the calling
 * conventions of the various functions.
 */
-#if ( defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
-      defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) ) &&\
-    ( defined(_X86_) || defined(_X64_) || defined(_M_IX86) ||\
-      defined(_M_X64) || defined(_M_IA64) )
-  /* Windows system (DOS doesn't support DLLs) running on x86/x64.  Includes
-   * builds under Cygwin or MinGW.  Also includes Watcom builds but these need
-   * special treatment because they are not compatible with GCC or Visual C
-   * because of different calling conventions.
+#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
+    defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+  /* Windows system (DOS doesn't support DLLs).  Includes builds under Cygwin or
+   * MinGW on any architecture currently supported by Windows.  Also includes
+   * Watcom builds but these need special treatment because they are not
+   * compatible with GCC or Visual C because of different calling conventions.
   */
 #  if PNG_API_RULE == 2
    /* If this line results in an error, either because __watcall is not
@@ -202,6 +200,9 @@
 #  if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
 #    define PNGCAPI __cdecl
 #    if PNG_API_RULE == 1
+       /* If this line results in an error __stdcall is not understood and
+        * PNG_API_RULE should not have been set to '1'.
+        */
 #      define PNGAPI __stdcall
 #    endif
 #  else
@@ -239,7 +240,7 @@
 #    endif
 #  endif /* compiler */

-#else /* !Windows/x86 */
+#else /* !Windows */
 #  if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
 #    define PNGAPI _System
 #  else /* !Windows/x86 && !OS/2 */
@@ -344,21 +345,23 @@
 #    ifndef PNG_NORETURN
 #      define PNG_NORETURN   __attribute__((__noreturn__))
 #    endif
-#    ifndef PNG_ALLOCATED
-#      define PNG_ALLOCATED  __attribute__((__malloc__))
-#    endif
-#    ifndef PNG_DEPRECATED
-#      define PNG_DEPRECATED __attribute__((__deprecated__))
-#    endif
-#    ifndef PNG_PRIVATE
-#      if 0 /* Doesn't work so we use deprecated instead*/
-#        define PNG_PRIVATE \
-          __attribute__((warning("This function is not exported by libpng.")))
-#      else
-#        define PNG_PRIVATE \
-          __attribute__((__deprecated__))
+#    if __GNUC__ >= 3
+#      ifndef PNG_ALLOCATED
+#        define PNG_ALLOCATED  __attribute__((__malloc__))
 #      endif
-#    endif
+#      ifndef PNG_DEPRECATED
+#        define PNG_DEPRECATED __attribute__((__deprecated__))
+#      endif
+#      ifndef PNG_PRIVATE
+#        if 0 /* Doesn't work so we use deprecated instead*/
+#          define PNG_PRIVATE \
+            __attribute__((warning("This function is not exported by libpng.")))
+#        else
+#          define PNG_PRIVATE \
+            __attribute__((__deprecated__))
+#        endif
+#      endif
+#    endif /*  __GNUC__ >= 3 */
 #  endif /* __GNUC__ */

 #  if defined(_MSC_VER)  && (_MSC_VER >= 1300)
@@ -366,10 +369,10 @@
 #      define PNG_USE_RESULT /* not supported */
 #    endif
 #    ifndef PNG_NORETURN
-#      define PNG_NORETURN   __declspec(noreturn)
+#      define PNG_NORETURN __declspec(noreturn)
 #    endif
 #    ifndef PNG_ALLOCATED
-#      if defined(_MSC_VER)  && (_MSC_VER >= 1300)
+#      if (_MSC_VER >= 1400)
 #        define PNG_ALLOCATED __declspec(restrict)
 #      endif
 #    endif
@@ -400,7 +403,7 @@
 #ifndef PNG_FP_EXPORT     /* A floating point API. */
 #  ifdef PNG_FLOATING_POINT_SUPPORTED
 #     define PNG_FP_EXPORT(ordinal, type, name, args)\
-         PNG_EXPORT(ordinal, type, name, args)
+         PNG_EXPORT(ordinal, type, name, args);
 #  else                   /* No floating point APIs */
 #     define PNG_FP_EXPORT(ordinal, type, name, args)
 #  endif
@@ -408,7 +411,7 @@
 #ifndef PNG_FIXED_EXPORT  /* A fixed point API. */
 #  ifdef PNG_FIXED_POINT_SUPPORTED
 #     define PNG_FIXED_EXPORT(ordinal, type, name, args)\
-         PNG_EXPORT(ordinal, type, name, args)
+         PNG_EXPORT(ordinal, type, name, args);
 #  else                   /* No fixed point APIs */
 #     define PNG_FIXED_EXPORT(ordinal, type, name, args)
 #  endif
--- a/pngerror.c
+++ b/pngerror.c
@@ -1,8 +1,8 @@

 /* pngerror.c - stub functions for i/o and memory allocation
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -161,7 +161,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
         case PNG_NUMBER_FORMAT_02u:
            /* Expects at least 2 digits. */
            mincount = 2;
-            /* fall through */
+            /* FALL THROUGH */

         case PNG_NUMBER_FORMAT_u:
            *--end = digits[number % 10];
@@ -171,7 +171,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
         case PNG_NUMBER_FORMAT_02x:
            /* This format expects at least two digits */
            mincount = 2;
-            /* fall through */
+            /* FALL THROUGH */

         case PNG_NUMBER_FORMAT_x:
            *--end = digits[number & 0xf];
@@ -281,35 +281,40 @@ void
 png_formatted_warning(png_structp png_ptr, png_warning_parameters p,
   png_const_charp message)
 {
-   /* The internal buffer is just 128 bytes - enough for all our messages,
-    * overflow doesn't happen because this code checks!
+   /* The internal buffer is just 192 bytes - enough for all our messages,
+    * overflow doesn't happen because this code checks!  If someone figures
+    * out how to send us a message longer than 192 bytes, all that will
+    * happen is that the message will be truncated appropriately.
    */
-   size_t i;
-   char msg[128];
+   size_t i = 0; /* Index in the msg[] buffer: */
+   char msg[192];

-   for (i=0; i<(sizeof msg)-1 && *message != '\0'; ++i)
+   /* Each iteration through the following loop writes at most one character
+    * to msg[i++] then returns here to validate that there is still space for
+    * the trailing '\0'.  It may (in the case of a parameter) read more than
+    * one character from message[]; it must check for '\0' and continue to the
+    * test if it finds the end of string.
+    */
+   while (i<(sizeof msg)-1 && *message != '\0')
   {
-      if (*message == '@')
+      /* '@' at end of string is now just printed (previously it was skipped);
+       * it is an error in the calling code to terminate the string with @.
+       */
+      if (p != NULL && *message == '@' && message[1] != '\0')
      {
-         int parameter = -1;
-         switch (*++message)
-         {
-            case '1':
-               parameter = 0;
-               break;
+         int parameter_char = *++message; /* Consume the '@' */
+         static const char valid_parameters[] = "123456789";
+         int parameter = 0;

-            case '2':
-               parameter = 1;
-               break;
+         /* Search for the parameter digit, the index in the string is the
+          * parameter to use.
+          */
+         while (valid_parameters[parameter] != parameter_char &&
+            valid_parameters[parameter] != '\0')
+            ++parameter;

-            case '\0':
-               continue; /* To break out of the for loop above. */
-
-            default:
-               break;
-         }
-
-         if (parameter >= 0 && parameter < PNG_WARNING_PARAMETER_COUNT)
+         /* If the parameter digit is out of range it will just get printed. */
+         if (parameter < PNG_WARNING_PARAMETER_COUNT)
         {
            /* Append this parameter */
            png_const_charp parm = p[parameter];
@@ -319,28 +324,32 @@ png_formatted_warning(png_structp png_ptr, png_warning_parameters p,
             * that parm[] has been initialized, so there is no guarantee of a
             * trailing '\0':
             */
-            for (; i<(sizeof msg)-1 && parm != '\0' && parm < pend; ++i)
-               msg[i] = *parm++;
+            while (i<(sizeof msg)-1 && *parm != '\0' && parm < pend)
+               msg[i++] = *parm++;

+            /* Consume the parameter digit too: */
            ++message;
            continue;
         }

         /* else not a parameter and there is a character after the @ sign; just
-          * copy that.
+          * copy that.  This is known not to be '\0' because of the test above.
          */
      }

      /* At this point *message can't be '\0', even in the bad parameter case
       * above where there is a lone '@' at the end of the message string.
       */
-      msg[i] = *message++;
+      msg[i++] = *message++;
   }

   /* i is always less than (sizeof msg), so: */
   msg[i] = '\0';

-   /* And this is the formatted message: */
+   /* And this is the formatted message, it may be larger than
+    * PNG_MAX_ERROR_TEXT, but that is only used for 'chunk' errors and these are
+    * not (currently) formatted.
+    */
   png_warning(png_ptr, msg);
 }
 #endif /* PNG_WARNINGS_SUPPORTED */
@@ -673,87 +682,4 @@ png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode)
   }
 }
 #endif
-
-#if defined PNG_SIMPLIFIED_READ_SUPPORTED ||\
-   defined PNG_SIMPLIFIED_WRITE_SUPPORTED
-   /* Currently the above both depend on SETJMP_SUPPORTED, however it would be
-    * possible to implement without setjmp support just so long as there is some
-    * way to handle the error return here:
-    */
-PNG_FUNCTION(void /* PRIVATE */,
-png_safe_error,(png_structp png_ptr, png_const_charp error_message),
-   PNG_NORETURN)
-{
-   png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
-
-   /* An error is always logged here, overwriting anything (typically a warning)
-    * that is already there:
-    */
-   if (image != NULL)
-   {
-      png_safecat(image->message, sizeof image->message, 0, error_message);
-      image->warning_or_error = 1;
-
-      /* Retrieve the jmp_buf from within the png_control, making this work for
-       * C++ compilation too is pretty tricky: C++ wants a pointer to the first
-       * element of a jmp_buf, but C doesn't tell us the type of that.
-       */
-      if (image->opaque != NULL && image->opaque->error_buf != NULL)
-         longjmp(png_control_jmp_buf(image->opaque), 1);
-
-      /* Missing longjmp buffer, the following is to help debugging: */
-      {
-         size_t pos = png_safecat(image->message, sizeof image->message, 0,
-            "bad longjmp: ");
-         png_safecat(image->message, sizeof image->message, pos, error_message);
-      }
-   }
-
-   /* Here on an internal programming error. */
-   abort();
-}
-
-#ifdef PNG_WARNINGS_SUPPORTED
-void /* PRIVATE */
-png_safe_warning(png_structp png_ptr, png_const_charp warning_message)
-{
-   png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
-
-   /* A warning is only logged if there is no prior warning or error. */
-   if (image->warning_or_error == 0)
-   {
-      png_safecat(image->message, sizeof image->message, 0, warning_message);
-      image->warning_or_error = 2;
-   }
-}
-#endif
-
-int /* PRIVATE */
-png_safe_execute(png_imagep imageIn, int (*function)(png_voidp), png_voidp arg)
-{
-   volatile png_imagep image = imageIn;
-   volatile int result;
-   volatile png_voidp saved_error_buf;
-   jmp_buf safe_jmpbuf;
-
-   /* Safely execute function(arg) with png_error returning to this function. */
-   saved_error_buf = image->opaque->error_buf;
-   result = setjmp(safe_jmpbuf) == 0;
-
-   if (result)
-   {
-
-      image->opaque->error_buf = safe_jmpbuf;
-      result = function(arg);
-   }
-
-   image->opaque->error_buf = saved_error_buf;
-
-   /* And do the cleanup prior to any failure return. */
-   if (!result)
-      png_image_free(image);
-
-   return result;
-}
-#endif /* SIMPLIFIED READ/WRITE */
 #endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
--- a/pngget.c
+++ b/pngget.c
@@ -1,7 +1,7 @@

 /* pngget.c - retrieval of values from info struct
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
+ * Last changed in libpng 1.5.7 [December 15, 2011]
 * Copyright (c) 1998-2011 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -175,6 +175,9 @@ png_get_pixel_aspect_ratio(png_const_structp png_ptr, png_const_infop info_ptr)
         return ((float)((float)info_ptr->y_pixels_per_unit
             /(float)info_ptr->x_pixels_per_unit));
   }
+#else
+   PNG_UNUSED(png_ptr)
+   PNG_UNUSED(info_ptr)
 #endif

   return ((float)0.0);
@@ -203,6 +206,9 @@ png_get_pixel_aspect_ratio_fixed(png_const_structp png_ptr,
          (png_int_32)info_ptr->x_pixels_per_unit))
         return res;
   }
+#else
+   PNG_UNUSED(png_ptr)
+   PNG_UNUSED(info_ptr)
 #endif

   return 0;
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,8 +1,8 @@

 /* pngmem.c - stub functions for memory allocation
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.13 [September 27, 2012]
+ * Copyright (c) 1998-2012 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -56,7 +56,7 @@ png_create_struct_2,(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr),
   if (malloc_fn != NULL)
   {
      png_struct dummy_struct;
-      memset(&dummy_struct, 0, sizeof dummy_struct);
+      png_memset(&dummy_struct, 0, sizeof dummy_struct);
      dummy_struct.mem_ptr=mem_ptr;
      struct_ptr = (*(malloc_fn))(&dummy_struct, (png_alloc_size_t)size);
   }
@@ -90,7 +90,7 @@ png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn,
      if (free_fn != NULL)
      {
         png_struct dummy_struct;
-         memset(&dummy_struct, 0, sizeof dummy_struct);
+         png_memset(&dummy_struct, 0, sizeof dummy_struct);
         dummy_struct.mem_ptr=mem_ptr;
         (*(free_fn))(&dummy_struct, struct_ptr);
         return;
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,8 +1,8 @@

 /* pngpread.c - read a png file in push mode
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.11 [June 14, 2012]
+ * Copyright (c) 1998-2012 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -128,30 +128,6 @@ png_process_some_data(png_structp png_ptr, png_infop info_ptr)
         break;
      }

-#ifdef PNG_READ_tEXt_SUPPORTED
-      case PNG_READ_tEXt_MODE:
-      {
-         png_push_read_tEXt(png_ptr, info_ptr);
-         break;
-      }
-
-#endif
-#ifdef PNG_READ_zTXt_SUPPORTED
-      case PNG_READ_zTXt_MODE:
-      {
-         png_push_read_zTXt(png_ptr, info_ptr);
-         break;
-      }
-
-#endif
-#ifdef PNG_READ_iTXt_SUPPORTED
-      case PNG_READ_iTXt_MODE:
-      {
-         png_push_read_iTXt(png_ptr, info_ptr);
-         break;
-      }
-
-#endif
      case PNG_SKIP_MODE:
      {
         png_push_crc_finish(png_ptr);
@@ -176,7 +152,7 @@ void /* PRIVATE */
 png_push_read_sig(png_structp png_ptr, png_infop info_ptr)
 {
   png_size_t num_checked = png_ptr->sig_bytes,
-             num_to_check = 8 - num_checked;
+       num_to_check = 8 - num_checked;

   if (png_ptr->buffer_size < num_to_check)
   {
@@ -196,6 +172,7 @@ png_push_read_sig(png_structp png_ptr, png_infop info_ptr)
      else
         png_error(png_ptr, "PNG file corrupted by ASCII conversion");
   }
+
   else
   {
      if (png_ptr->sig_bytes >= 8)
@@ -305,8 +282,8 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
            png_error(png_ptr, "Missing PLTE before IDAT");
      }
   }
-
 #endif
+
   else if (chunk_name == png_PLTE)
   {
      if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -543,7 +520,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
         return;
      }

-      png_push_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length);
+      png_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length);
   }

 #endif
@@ -556,7 +533,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
         return;
      }

-      png_push_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length);
+      png_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length);
   }

 #endif
@@ -569,10 +546,11 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
         return;
      }

-      png_push_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length);
+      png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length);
   }

 #endif
+
   else
   {
      if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -580,7 +558,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
         png_push_save_buffer(png_ptr);
         return;
      }
-      png_push_handle_unknown(png_ptr, info_ptr, png_ptr->push_length);
+      png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length);
   }

   png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
@@ -620,6 +598,7 @@ png_push_crc_finish(png_structp png_ptr)
      png_ptr->save_buffer_size -= save_size;
      png_ptr->save_buffer_ptr += save_size;
   }
+
   if (png_ptr->skip_length && png_ptr->current_buffer_size)
   {
      png_size_t save_size = png_ptr->current_buffer_size;
@@ -641,6 +620,7 @@ png_push_crc_finish(png_structp png_ptr)
      png_ptr->current_buffer_size -= save_size;
      png_ptr->current_buffer_ptr += save_size;
   }
+
   if (!png_ptr->skip_length)
   {
      if (png_ptr->buffer_size < 4)
@@ -663,6 +643,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
      return;

   ptr = buffer;
+
   if (png_ptr->save_buffer_size)
   {
      png_size_t save_size;
@@ -680,6 +661,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
      png_ptr->save_buffer_size -= save_size;
      png_ptr->save_buffer_ptr += save_size;
   }
+
   if (length && png_ptr->current_buffer_size)
   {
      png_size_t save_size;
@@ -709,6 +691,7 @@ png_push_save_buffer(png_structp png_ptr)
         png_bytep dp;

         istop = png_ptr->save_buffer_size;
+
         for (i = 0, sp = png_ptr->save_buffer_ptr, dp = png_ptr->save_buffer;
             i < istop; i++, sp++, dp++)
         {
@@ -716,6 +699,7 @@ png_push_save_buffer(png_structp png_ptr)
         }
      }
   }
+
   if (png_ptr->save_buffer_size + png_ptr->current_buffer_size >
       png_ptr->save_buffer_max)
   {
@@ -730,8 +714,7 @@ png_push_save_buffer(png_structp png_ptr)

      new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
      old_buffer = png_ptr->save_buffer;
-      png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
-          (png_size_t)new_max);
+      png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr, new_max);

      if (png_ptr->save_buffer == NULL)
      {
@@ -743,6 +726,7 @@ png_push_save_buffer(png_structp png_ptr)
      png_free(png_ptr, old_buffer);
      png_ptr->save_buffer_max = new_max;
   }
+
   if (png_ptr->current_buffer_size)
   {
      png_memcpy(png_ptr->save_buffer + png_ptr->save_buffer_size,
@@ -750,6 +734,7 @@ png_push_save_buffer(png_structp png_ptr)
      png_ptr->save_buffer_size += png_ptr->current_buffer_size;
      png_ptr->current_buffer_size = 0;
   }
+
   png_ptr->save_buffer_ptr = png_ptr->save_buffer;
   png_ptr->buffer_size = 0;
 }
@@ -851,6 +836,7 @@ png_push_read_IDAT(png_structp png_ptr)
      png_ptr->current_buffer_size -= save_size;
      png_ptr->current_buffer_ptr += save_size;
   }
+
   if (!png_ptr->idat_size)
   {
      if (png_ptr->buffer_size < 4)
@@ -1201,6 +1187,7 @@ png_push_process_row(png_structp png_ptr)
 void /* PRIVATE */
 png_read_push_finish_row(png_structp png_ptr)
 {
+#ifdef PNG_READ_INTERLACING_SUPPORTED
   /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */

   /* Start of interlace block */
@@ -1219,6 +1206,7 @@ png_read_push_finish_row(png_structp png_ptr)
    * it, uncomment it here and in png.h
   static PNG_CONST png_byte FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
   */
+#endif

   png_ptr->row_number++;
   if (png_ptr->row_number < png_ptr->num_rows)
@@ -1262,525 +1250,6 @@ png_read_push_finish_row(png_structp png_ptr)
 #endif /* PNG_READ_INTERLACING_SUPPORTED */
 }

-#ifdef PNG_READ_tEXt_SUPPORTED
-void /* PRIVATE */
-png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
-    length)
-{
-   if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
-      {
-         PNG_UNUSED(info_ptr) /* To quiet some compiler warnings */
-         png_error(png_ptr, "Out of place tEXt");
-         /* NOT REACHED */
-      }
-
-#ifdef PNG_MAX_MALLOC_64K
-   png_ptr->skip_length = 0;  /* This may not be necessary */
-
-   if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */
-   {
-      png_warning(png_ptr, "tEXt chunk too large to fit in memory");
-      png_ptr->skip_length = length - (png_uint_32)65535L;
-      length = (png_uint_32)65535L;
-   }
-#endif
-
-   png_ptr->current_text = (png_charp)png_malloc(png_ptr,
-       (png_size_t)(length + 1));
-   png_ptr->current_text[length] = '\0';
-   png_ptr->current_text_ptr = png_ptr->current_text;
-   png_ptr->current_text_size = (png_size_t)length;
-   png_ptr->current_text_left = (png_size_t)length;
-   png_ptr->process_mode = PNG_READ_tEXt_MODE;
-}
-
-void /* PRIVATE */
-png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr)
-{
-   if (png_ptr->buffer_size && png_ptr->current_text_left)
-   {
-      png_size_t text_size;
-
-      if (png_ptr->buffer_size < png_ptr->current_text_left)
-         text_size = png_ptr->buffer_size;
-
-      else
-         text_size = png_ptr->current_text_left;
-
-      png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size);
-      png_ptr->current_text_left -= text_size;
-      png_ptr->current_text_ptr += text_size;
-   }
-   if (!(png_ptr->current_text_left))
-   {
-      png_textp text_ptr;
-      png_charp text;
-      png_charp key;
-      int ret;
-
-      if (png_ptr->buffer_size < 4)
-      {
-         png_push_save_buffer(png_ptr);
-         return;
-      }
-
-      png_push_crc_finish(png_ptr);
-
-#ifdef PNG_MAX_MALLOC_64K
-      if (png_ptr->skip_length)
-         return;
-#endif
-
-      key = png_ptr->current_text;
-
-      for (text = key; *text; text++)
-         /* Empty loop */ ;
-
-      if (text < key + png_ptr->current_text_size)
-         text++;
-
-      text_ptr = (png_textp)png_malloc(png_ptr, png_sizeof(png_text));
-      text_ptr->compression = PNG_TEXT_COMPRESSION_NONE;
-      text_ptr->key = key;
-      text_ptr->itxt_length = 0;
-      text_ptr->lang = NULL;
-      text_ptr->lang_key = NULL;
-      text_ptr->text = text;
-
-      ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1);
-
-      png_free(png_ptr, key);
-      png_free(png_ptr, text_ptr);
-      png_ptr->current_text = NULL;
-
-      if (ret)
-         png_warning(png_ptr, "Insufficient memory to store text chunk");
-   }
-}
-#endif
-
-#ifdef PNG_READ_zTXt_SUPPORTED
-void /* PRIVATE */
-png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
-   length)
-{
-   if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
-   {
-      PNG_UNUSED(info_ptr) /* To quiet some compiler warnings */
-      png_error(png_ptr, "Out of place zTXt");
-      /* NOT REACHED */
-   }
-
-#ifdef PNG_MAX_MALLOC_64K
-   /* We can't handle zTXt chunks > 64K, since we don't have enough space
-    * to be able to store the uncompressed data.  Actually, the threshold
-    * is probably around 32K, but it isn't as definite as 64K is.
-    */
-   if (length > (png_uint_32)65535L)
-   {
-      png_warning(png_ptr, "zTXt chunk too large to fit in memory");
-      png_push_crc_skip(png_ptr, length);
-      return;
-   }
-#endif
-
-   png_ptr->current_text = (png_charp)png_malloc(png_ptr,
-       (png_size_t)(length + 1));
-   png_ptr->current_text[length] = '\0';
-   png_ptr->current_text_ptr = png_ptr->current_text;
-   png_ptr->current_text_size = (png_size_t)length;
-   png_ptr->current_text_left = (png_size_t)length;
-   png_ptr->process_mode = PNG_READ_zTXt_MODE;
-}
-
-void /* PRIVATE */
-png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
-{
-   if (png_ptr->buffer_size && png_ptr->current_text_left)
-   {
-      png_size_t text_size;
-
-      if (png_ptr->buffer_size < (png_uint_32)png_ptr->current_text_left)
-         text_size = png_ptr->buffer_size;
-
-      else
-         text_size = png_ptr->current_text_left;
-
-      png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size);
-      png_ptr->current_text_left -= text_size;
-      png_ptr->current_text_ptr += text_size;
-   }
-   if (!(png_ptr->current_text_left))
-   {
-      png_textp text_ptr;
-      png_charp text;
-      png_charp key;
-      int ret;
-      png_size_t text_size, key_size;
-
-      if (png_ptr->buffer_size < 4)
-      {
-         png_push_save_buffer(png_ptr);
-         return;
-      }
-
-      png_push_crc_finish(png_ptr);
-
-      key = png_ptr->current_text;
-
-      for (text = key; *text; text++)
-         /* Empty loop */ ;
-
-      /* zTXt can't have zero text */
-      if (text >= key + png_ptr->current_text_size)
-      {
-         png_ptr->current_text = NULL;
-         png_free(png_ptr, key);
-         return;
-      }
-
-      text++;
-
-      if (*text != PNG_TEXT_COMPRESSION_zTXt) /* Check compression byte */
-      {
-         png_ptr->current_text = NULL;
-         png_free(png_ptr, key);
-         return;
-      }
-
-      text++;
-
-      png_ptr->zstream.next_in = (png_bytep)text;
-      png_ptr->zstream.avail_in = (uInt)(png_ptr->current_text_size -
-          (text - key));
-      png_ptr->zstream.next_out = png_ptr->zbuf;
-      png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
-
-      key_size = text - key;
-      text_size = 0;
-      text = NULL;
-      ret = Z_STREAM_END;
-
-      while (png_ptr->zstream.avail_in)
-      {
-         ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH);
-         if (ret != Z_OK && ret != Z_STREAM_END)
-         {
-            inflateReset(&png_ptr->zstream);
-            png_ptr->zstream.avail_in = 0;
-            png_ptr->current_text = NULL;
-            png_free(png_ptr, key);
-            png_free(png_ptr, text);
-            return;
-         }
-
-         if (!(png_ptr->zstream.avail_out) || ret == Z_STREAM_END)
-         {
-            if (text == NULL)
-            {
-               text = (png_charp)png_malloc(png_ptr,
-                   (png_ptr->zbuf_size
-                   - png_ptr->zstream.avail_out + key_size + 1));
-
-               png_memcpy(text + key_size, png_ptr->zbuf,
-                   png_ptr->zbuf_size - png_ptr->zstream.avail_out);
-
-               png_memcpy(text, key, key_size);
-
-               text_size = key_size + png_ptr->zbuf_size -
-                   png_ptr->zstream.avail_out;
-
-               *(text + text_size) = '\0';
-            }
-
-            else
-            {
-               png_charp tmp;
-
-               tmp = text;
-               text = (png_charp)png_malloc(png_ptr, text_size +
-                   (png_ptr->zbuf_size
-                   - png_ptr->zstream.avail_out + 1));
-
-               png_memcpy(text, tmp, text_size);
-               png_free(png_ptr, tmp);
-
-               png_memcpy(text + text_size, png_ptr->zbuf,
-                   png_ptr->zbuf_size - png_ptr->zstream.avail_out);
-
-               text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out;
-               *(text + text_size) = '\0';
-            }
-
-            if (ret != Z_STREAM_END)
-            {
-               png_ptr->zstream.next_out = png_ptr->zbuf;
-               png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
-            }
-         }
-         else
-         {
-            break;
-         }
-
-         if (ret == Z_STREAM_END)
-            break;
-      }
-
-      inflateReset(&png_ptr->zstream);
-      png_ptr->zstream.avail_in = 0;
-
-      if (ret != Z_STREAM_END)
-      {
-         png_ptr->current_text = NULL;
-         png_free(png_ptr, key);
-         png_free(png_ptr, text);
-         return;
-      }
-
-      png_ptr->current_text = NULL;
-      png_free(png_ptr, key);
-      key = text;
-      text += key_size;
-
-      text_ptr = (png_textp)png_malloc(png_ptr,
-          png_sizeof(png_text));
-      text_ptr->compression = PNG_TEXT_COMPRESSION_zTXt;
-      text_ptr->key = key;
-      text_ptr->itxt_length = 0;
-      text_ptr->lang = NULL;
-      text_ptr->lang_key = NULL;
-      text_ptr->text = text;
-
-      ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1);
-
-      png_free(png_ptr, key);
-      png_free(png_ptr, text_ptr);
-
-      if (ret)
-         png_warning(png_ptr, "Insufficient memory to store text chunk");
-   }
-}
-#endif
-
-#ifdef PNG_READ_iTXt_SUPPORTED
-void /* PRIVATE */
-png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
-    length)
-{
-   if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
-   {
-      PNG_UNUSED(info_ptr) /* To quiet some compiler warnings */
-      png_error(png_ptr, "Out of place iTXt");
-      /* NOT REACHED */
-   }
-
-#ifdef PNG_MAX_MALLOC_64K
-   png_ptr->skip_length = 0;  /* This may not be necessary */
-
-   if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */
-   {
-      png_warning(png_ptr, "iTXt chunk too large to fit in memory");
-      png_ptr->skip_length = length - (png_uint_32)65535L;
-      length = (png_uint_32)65535L;
-   }
-#endif
-
-   png_ptr->current_text = (png_charp)png_malloc(png_ptr,
-       (png_size_t)(length + 1));
-   png_ptr->current_text[length] = '\0';
-   png_ptr->current_text_ptr = png_ptr->current_text;
-   png_ptr->current_text_size = (png_size_t)length;
-   png_ptr->current_text_left = (png_size_t)length;
-   png_ptr->process_mode = PNG_READ_iTXt_MODE;
-}
-
-void /* PRIVATE */
-png_push_read_iTXt(png_structp png_ptr, png_infop info_ptr)
-{
-
-   if (png_ptr->buffer_size && png_ptr->current_text_left)
-   {
-      png_size_t text_size;
-
-      if (png_ptr->buffer_size < png_ptr->current_text_left)
-         text_size = png_ptr->buffer_size;
-
-      else
-         text_size = png_ptr->current_text_left;
-
-      png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size);
-      png_ptr->current_text_left -= text_size;
-      png_ptr->current_text_ptr += text_size;
-   }
-
-   if (!(png_ptr->current_text_left))
-   {
-      png_textp text_ptr;
-      png_charp key;
-      int comp_flag;
-      png_charp lang;
-      png_charp lang_key;
-      png_charp text;
-      int ret;
-
-      if (png_ptr->buffer_size < 4)
-      {
-         png_push_save_buffer(png_ptr);
-         return;
-      }
-
-      png_push_crc_finish(png_ptr);
-
-#ifdef PNG_MAX_MALLOC_64K
-      if (png_ptr->skip_length)
-         return;
-#endif
-
-      key = png_ptr->current_text;
-
-      for (lang = key; *lang; lang++)
-         /* Empty loop */ ;
-
-      if (lang < key + png_ptr->current_text_size - 3)
-         lang++;
-
-      comp_flag = *lang++;
-      lang++;     /* Skip comp_type, always zero */
-
-      for (lang_key = lang; *lang_key; lang_key++)
-         /* Empty loop */ ;
-
-      lang_key++;        /* Skip NUL separator */
-
-      text=lang_key;
-
-      if (lang_key < key + png_ptr->current_text_size - 1)
-      {
-         for (; *text; text++)
-            /* Empty loop */ ;
-      }
-
-      if (text < key + png_ptr->current_text_size)
-         text++;
-
-      text_ptr = (png_textp)png_malloc(png_ptr,
-          png_sizeof(png_text));
-
-      text_ptr->compression = comp_flag + 2;
-      text_ptr->key = key;
-      text_ptr->lang = lang;
-      text_ptr->lang_key = lang_key;
-      text_ptr->text = text;
-      text_ptr->text_length = 0;
-      text_ptr->itxt_length = png_strlen(text);
-
-      ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1);
-
-      png_ptr->current_text = NULL;
-
-      png_free(png_ptr, text_ptr);
-      if (ret)
-         png_warning(png_ptr, "Insufficient memory to store iTXt chunk");
-   }
-}
-#endif
-
-/* This function is called when we haven't found a handler for this
- * chunk.  If there isn't a problem with the chunk itself (ie a bad chunk
- * name or a critical chunk), the chunk is (currently) silently ignored.
- */
-void /* PRIVATE */
-png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
-    length)
-{
-   png_uint_32 skip = 0;
-   png_uint_32 chunk_name = png_ptr->chunk_name;
-
-   if (PNG_CHUNK_CRITICAL(chunk_name))
-   {
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-      if (png_chunk_unknown_handling(png_ptr, chunk_name) !=
-          PNG_HANDLE_CHUNK_ALWAYS
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-          && png_ptr->read_user_chunk_fn == NULL
-#endif
-          )
-#endif
-         png_chunk_error(png_ptr, "unknown critical chunk");
-
-      PNG_UNUSED(info_ptr) /* To quiet some compiler warnings */
-   }
-
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-   /* TODO: the code below is apparently just using the
-    * png_struct::unknown_chunk member as a temporarily variable, it should be
-    * possible to eliminate both it and the temporary buffer.
-    */
-   if (png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS)
-   {
-#ifdef PNG_MAX_MALLOC_64K
-      if (length > 65535)
-      {
-         png_warning(png_ptr, "unknown chunk too large to fit in memory");
-         skip = length - 65535;
-         length = 65535;
-      }
-#endif
-      /* This is just a record for the user; libpng doesn't use the character
-       * form of the name.
-       */
-      PNG_CSTRING_FROM_CHUNK(png_ptr->unknown_chunk.name, png_ptr->chunk_name);
-
-      /* The following cast should be safe because of the check above. */
-      png_ptr->unknown_chunk.size = (png_size_t)length;
-
-      if (length == 0)
-         png_ptr->unknown_chunk.data = NULL;
-
-      else
-      {
-         png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr,
-            png_ptr->unknown_chunk.size);
-         png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data,
-            png_ptr->unknown_chunk.size);
-      }
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-      if (png_ptr->read_user_chunk_fn != NULL)
-      {
-         /* Callback to user unknown chunk handler */
-         int ret;
-         ret = (*(png_ptr->read_user_chunk_fn))
-             (png_ptr, &png_ptr->unknown_chunk);
-
-         if (ret < 0)
-            png_chunk_error(png_ptr, "error in user chunk");
-
-         if (ret == 0)
-         {
-            if (PNG_CHUNK_CRITICAL(png_ptr->chunk_name))
-               if (png_chunk_unknown_handling(png_ptr, chunk_name) !=
-                   PNG_HANDLE_CHUNK_ALWAYS)
-                  png_chunk_error(png_ptr, "unknown critical chunk");
-            png_set_unknown_chunks(png_ptr, info_ptr,
-                &png_ptr->unknown_chunk, 1);
-         }
-      }
-
-      else
-#endif
-         png_set_unknown_chunks(png_ptr, info_ptr, &png_ptr->unknown_chunk, 1);
-      png_free(png_ptr, png_ptr->unknown_chunk.data);
-      png_ptr->unknown_chunk.data = NULL;
-   }
-
-   else
-#endif
-      skip=length;
-   png_push_crc_skip(png_ptr, skip);
-}
-
 void /* PRIVATE */
 png_push_have_info(png_structp png_ptr, png_infop info_ptr)
 {
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -2,11 +2,11 @@
 /* pngpriv.h - private declarations for use inside libpng
 *
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2012 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
+ * Last changed in libpng 1.5.10 [March 29, 2012]
 *
 * This code is released under the libpng license.
 * For conditions of distribution and use, see the disclaimer
@@ -133,6 +133,46 @@
 #  define PNG_DLL_EXPORT
 #endif

+/* SECURITY and SAFETY:
+ *
+ * By default libpng is built without any internal limits on image size,
+ * individual heap (png_malloc) allocations or the total amount of memory used.
+ * If PNG_SAFE_LIMITS_SUPPORTED is defined, however, the limits below are used
+ * (unless individually overridden).  These limits are believed to be fairly
+ * safe, but builders of secure systems should verify the values against the
+ * real system capabilities.
+ */
+
+#ifdef PNG_SAFE_LIMITS_SUPPORTED
+   /* 'safe' limits */
+#  ifndef PNG_USER_WIDTH_MAX
+#     define PNG_USER_WIDTH_MAX 1000000
+#  endif
+#  ifndef PNG_USER_HEIGHT_MAX
+#     define PNG_USER_HEIGHT_MAX 1000000
+#  endif
+#  ifndef PNG_USER_CHUNK_CACHE_MAX
+#     define PNG_USER_CHUNK_CACHE_MAX 128
+#  endif
+#  ifndef PNG_USER_CHUNK_MALLOC_MAX
+#     define PNG_USER_CHUNK_MALLOC_MAX 8000000
+#  endif
+#else
+   /* values for no limits */
+#  ifndef PNG_USER_WIDTH_MAX
+#     define PNG_USER_WIDTH_MAX 0x7fffffff
+#  endif
+#  ifndef PNG_USER_HEIGHT_MAX
+#     define PNG_USER_HEIGHT_MAX 0x7fffffff
+#  endif
+#  ifndef PNG_USER_CHUNK_CACHE_MAX
+#     define PNG_USER_CHUNK_CACHE_MAX 0
+#  endif
+#  ifndef PNG_USER_CHUNK_MALLOC_MAX
+#     define PNG_USER_CHUNK_MALLOC_MAX 0
+#  endif
+#endif
+
 /* This is used for 16 bit gamma tables - only the top level pointers are const,
 * this could be changed:
 */
@@ -258,26 +298,6 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
 #  define PNG_EXTERN extern
 #endif

-#ifndef PNG_CONST_DATA
-/* Some compilers fail if given an "extern const" data declaration followed by a
- * "const" definition, therefore declaring const data in pngpriv.h is
- * impossible, the following allows a work-round for the problematic compilers
- * by defining -DPNG_NO_CONST_DATA on the command line (notice that this does
- * not affect static const definitions, where there is no declaration.)
- */
-#  ifndef PNG_NO_CONST_DATA
-      /* List of compilers where "extern const" is known to be OK: */
-#     if defined __GNUC__ || defined _MSC_VER || defined __WATCOMC__
-#        define PNG_CONST_DATA const
-#     endif
-#  endif
-
-   /* Default to disabling const data declarations: */
-#  ifndef PNG_CONST_DATA
-#     define PNG_CONST_DATA /*const*/
-#  endif
-#endif
-
 /* Some fixed point APIs are still required even if not exported because
 * they get used by the corresponding floating point APIs.  This magic
 * deals with this:
@@ -396,7 +416,7 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
 #if PNG_ALIGN_TYPE == PNG_ALIGN_SIZE
   /* This is used because in some compiler implementations non-aligned
    * structure members are supported, so the offsetof approach below fails.
-    * Set PNG_ALIGN_TO_SIZE=0 for compiler combinations where unaligned access
+    * Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access
    * is good for performance.  Do not do this unless you have tested the result
    * and understand it.
    */
@@ -446,6 +466,7 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
 #define PNG_BACKGROUND_IS_GRAY     0x800
 #define PNG_HAVE_PNG_SIGNATURE    0x1000
 #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */
+#define PNG_HAVE_iCCP             0x4000

 /* Flags for the transformations the PNG library does on the image data */
 #define PNG_BGR                 0x0001
@@ -548,26 +569,6 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
   abs((int)((c1).green) - (int)((c2).green)) + \
   abs((int)((c1).blue) - (int)((c2).blue)))

-/* Added to libpng-1.5.7: sRGB conversion tables */
-#if defined PNG_SIMPLIFIED_READ_SUPPORTED ||\
-   defined PNG_SIMPLIFIED_WRITE_SUPPORTED
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-extern /*PRIVATE*/ PNG_CONST_DATA png_uint_16 png_sRGB_table[256];
-   /* Convert from an sRGB encoded value 0..255 to a 16-bit linear value,
-    * 0..65535.  This table gives the closes 16-bit answers (no errors).
-    */
-#endif
-
-extern /*PRIVATE*/ PNG_CONST_DATA png_uint_16 png_sRGB_base[512];
-extern /*PRIVATE*/ PNG_CONST_DATA png_byte png_sRGB_delta[512];
-
-#define PNG_sRGB_FROM_LINEAR(linear) ((png_sRGB_base[(linear)>>15] +\
-   ((((linear)&0x7fff)*png_sRGB_delta[(linear)>>15])>>12)) >> 8)
-   /* Given a value 'linear' in the range 0..255*65535 calculate the 8-bit sRGB
-    * encoded value with maximum error 0.646365.  Note that the input is not a
-    * 16-bit value; it has been multiplied by 255! */
-#endif /* PNG_SIMPLIFIED_READ/WRITE */
-
 /* Added to libpng-1.2.6 JB */
 #define PNG_ROWBYTES(pixel_bits, width) \
    ((pixel_bits) >= 8 ? \
@@ -822,10 +823,8 @@ PNG_EXTERN void png_write_IEND PNGARG((png_structp png_ptr));
 #  ifdef PNG_FLOATING_POINT_SUPPORTED
 PNG_EXTERN void png_write_gAMA PNGARG((png_structp png_ptr, double file_gamma));
 #  endif
-#  ifdef PNG_FIXED_POINT_SUPPORTED
 PNG_EXTERN void png_write_gAMA_fixed PNGARG((png_structp png_ptr,
    png_fixed_point file_gamma));
-#  endif
 #endif

 #ifdef PNG_WRITE_sBIT_SUPPORTED
@@ -992,8 +991,8 @@ PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info,
 /* Unfilter a row: check the filter value before calling this, there is no point
 * calling it for PNG_FILTER_VALUE_NONE.
 */
-PNG_EXTERN void png_read_filter_row PNGARG((png_structp pp, png_row_infop row_info,
-    png_bytep row, png_const_bytep prev_row, int filter));
+PNG_EXTERN void png_read_filter_row PNGARG((png_structp pp, png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row, int filter));

 PNG_EXTERN void png_read_filter_row_up_neon PNGARG((png_row_infop row_info,
    png_bytep row, png_const_bytep prev_row));
@@ -1258,10 +1257,8 @@ PNG_EXTERN void png_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr,
    png_uint_32 length));
 #endif

-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
 PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr,
    png_infop info_ptr, png_uint_32 length));
-#endif

 PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr,
    png_uint_32 chunk_name));
@@ -1395,6 +1392,13 @@ PNG_EXTERN void png_check_IHDR PNGARG((png_structp png_ptr,
    int color_type, int interlace_type, int compression_type,
    int filter_type));

+/* Added at libpng version 1.5.10 */
+#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
+    defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
+PNG_EXTERN void png_do_check_palette_indexes PNGARG((png_structp png_ptr,
+    png_row_infop row_info));
+#endif
+
 /* Free all memory used by the read (old method - NOT DLL EXPORTED) */
 PNG_EXTERN void png_read_destroy PNGARG((png_structp png_ptr,
    png_infop info_ptr, png_infop end_info_ptr));
@@ -1485,14 +1489,16 @@ PNG_EXTERN void png_formatted_warning(png_structp png_ptr,
 /* ASCII to FP interfaces, currently only implemented if sCAL
 * support is required.
 */
-#if defined(PNG_READ_sCAL_SUPPORTED)
+#ifdef PNG_sCAL_SUPPORTED
 /* MAX_DIGITS is actually the maximum number of characters in an sCAL
 * width or height, derived from the precision (number of significant
 * digits - a build time settable option) and assumpitions about the
 * maximum ridiculous exponent.
 */
 #define PNG_sCAL_MAX_DIGITS (PNG_sCAL_PRECISION+1/*.*/+1/*E*/+10/*exponent*/)
+#endif

+#ifdef PNG_sCAL_SUPPORTED
 #ifdef PNG_FLOATING_POINT_SUPPORTED
 PNG_EXTERN void png_ascii_from_fp PNGARG((png_structp png_ptr, png_charp ascii,
    png_size_t size, double fp, unsigned int precision));
@@ -1576,15 +1582,15 @@ PNG_EXTERN void png_ascii_from_fixed PNGARG((png_structp png_ptr,
 #define PNG_FP_IS_ZERO(state) (((state) & PNG_FP_Z_MASK) == PNG_FP_SAW_DIGIT)
 #define PNG_FP_IS_POSITIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_Z_MASK)
 #define PNG_FP_IS_NEGATIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_NZ_MASK)
- 
-/* The actual parser.  This can be called repeatedly, it updates
+
+/* The actual parser.  This can be called repeatedly. It updates
 * the index into the string and the state variable (which must
- * be initialzed to 0).  It returns a result code, as above.  There
+ * be initialized to 0).  It returns a result code, as above.  There
 * is no point calling the parser any more if it fails to advance to
 * the end of the string - it is stuck on an invalid character (or
 * terminated by '\0').
 *
- * Note that the pointer will consume an E or even an E+ then leave
+ * Note that the pointer will consume an E or even an E+ and then leave
 * a 'maybe' state even though a preceding integer.fraction is valid.
 * The PNG_FP_WAS_VALID flag indicates that a preceding substring was
 * a valid number.  It's possible to recover from this by calling
@@ -1623,7 +1629,7 @@ PNG_EXTERN png_fixed_point png_muldiv_warn PNGARG((png_structp png_ptr,
    png_fixed_point a, png_int_32 multiplied_by, png_int_32 divided_by));
 #endif

-#ifdef PNG_READ_GAMMA_SUPPORTED
+#if (defined PNG_READ_GAMMA_SUPPORTED) || (defined PNG_cHRM_SUPPORTED)
 /* Calculate a reciprocal - used for gamma values.  This returns
 * 0 if the argument is 0 in order to maintain an undefined value,
 * there are no warnings.
@@ -1658,58 +1664,72 @@ PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr,
    int bit_depth));
 #endif

-/* SIMPLIFIED READ/WRITE SUPPORT */
-#if defined PNG_SIMPLIFIED_READ_SUPPORTED ||\
-   defined PNG_SIMPLIFIED_WRITE_SUPPORTED
-/* The internal structure that png_image::opaque points to. */
-typedef struct png_control
-{
-   png_structp  png_ptr;
-   png_infop    info_ptr;
-   png_voidp    error_buf;     /* Always a jmp_buf at present. */
-
-   png_const_bytep memory;     /* Memory buffer. */
-   png_size_t      size;       /* Size of the memory buffer. */
-
-   unsigned int for_write :1;  /* Otherwise it is a read structure */
-   unsigned int owned_file :1; /* We own the file in io_ptr */
-} png_control;
-
-/* Return the pointer to the jmp_buf from a png_control: necessary because C
- * does not reveal the type of the elements of jmp_buf.
+/* Missing declarations if FIXED_POINT is *not* supported - fixed properly
+ * in libpng 1.6
 */
-#ifdef __cplusplus
-#  define png_control_jmp_buf(pc) (((jmp_buf*)((pc)->error_buf))[0])
-#else
-#  define png_control_jmp_buf(pc) ((pc)->error_buf)
+#ifndef PNG_FIXED_POINT_SUPPORTED
+#ifdef PNG_cHRM_SUPPORTED
+PNG_EXTERN png_uint_32 png_get_cHRM_XYZ_fixed PNGARG(
+    (png_structp png_ptr, png_const_infop info_ptr,
+    png_fixed_point *int_red_X, png_fixed_point *int_red_Y,
+    png_fixed_point *int_red_Z, png_fixed_point *int_green_X,
+    png_fixed_point *int_green_Y, png_fixed_point *int_green_Z,
+    png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
+    png_fixed_point *int_blue_Z));
+PNG_EXTERN void png_set_cHRM_XYZ_fixed PNGARG((png_structp png_ptr,
+    png_infop info_ptr, png_fixed_point int_red_X, png_fixed_point int_red_Y,
+    png_fixed_point int_red_Z, png_fixed_point int_green_X,
+    png_fixed_point int_green_Y, png_fixed_point int_green_Z,
+    png_fixed_point int_blue_X, png_fixed_point int_blue_Y,
+    png_fixed_point int_blue_Z));
+PNG_EXTERN void png_set_cHRM_fixed PNGARG((png_structp png_ptr,
+    png_infop info_ptr, png_fixed_point int_white_x,
+    png_fixed_point int_white_y, png_fixed_point int_red_x,
+    png_fixed_point int_red_y, png_fixed_point int_green_x,
+    png_fixed_point int_green_y, png_fixed_point int_blue_x,
+    png_fixed_point int_blue_y));
 #endif

-/* Utility to safely execute a piece of libpng code catching and logging any
- * errors that might occur.  Returns true on success, false on failure (either
- * of the function or as a result of a png_error.)
- */
-PNG_FUNCTION(void, png_safe_error, (png_structp png_ptr,
-   png_const_charp error_message), PNG_NORETURN);
-
-#ifdef PNG_WARNINGS_SUPPORTED
-   PNG_EXTERN void png_safe_warning(png_structp png_ptr,
-      png_const_charp warning_message);
-#else
-#  define png_safe_warning 0/*dummy argument*/
+#ifdef PNG_gAMA_SUPPORTED
+PNG_EXTERN png_uint_32 png_get_gAMA_fixed PNGARG(
+    (png_const_structp png_ptr, png_const_infop info_ptr,
+    png_fixed_point *int_file_gamma));
+PNG_EXTERN void png_set_gAMA_fixed PNGARG((png_structp png_ptr,
+    png_infop info_ptr, png_fixed_point int_file_gamma));
 #endif

-PNG_EXTERN int png_safe_execute PNGARG((png_imagep image,
-   int (*function)(png_voidp), png_voidp arg));
+#ifdef PNG_READ_BACKGROUND_SUPPORTED
+PNG_EXTERN void png_set_background_fixed PNGARG((png_structp png_ptr,
+    png_const_color_16p background_color, int background_gamma_code,
+    int need_expand, png_fixed_point background_gamma));
+#endif

-/* Utility to log an error, this also cleans up the png_image, the function
- * always returns 0 (false).
- */
-PNG_EXTERN int png_image_error(png_imagep image, png_const_charp error_message);
+#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
+PNG_EXTERN void png_set_alpha_mode_fixed PNGARG((png_structp png_ptr,
+    int mode, png_fixed_point output_gamma));
+#endif

-#endif /* SIMPLIFIED READ/WRITE */
+#ifdef PNG_READ_GAMMA_SUPPORTED
+PNG_EXTERN void png_set_gamma_fixed PNGARG((png_structp png_ptr,
+    png_fixed_point screen_gamma, png_fixed_point override_file_gamma));
+#endif

-/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
+#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
+PNG_EXTERN void png_set_rgb_to_gray_fixed PNGARG((png_structp png_ptr,
+    int error_action, png_fixed_point red, png_fixed_point green));
+#endif
+#endif /* FIX MISSING !FIXED_POINT DECLARATIONS */

+#ifdef PNG_FILTER_OPTIMIZATIONS
+PNG_EXTERN void PNG_FILTER_OPTIMIZATIONS(png_structp png_ptr, unsigned int bpp);
+   /* This is the initialization function for hardware specific optimizations,
+    * one implementation (for ARM NEON machines) is contained in
+    * arm/filter_neon.c.  It need not be defined - the generic code will be used
+    * if not.
+    */
+#endif
+
+/* Maintainer: Put new private prototypes here ^ */

 #include "pngdebug.h"

--- a/pngread.c
+++ b/pngread.c
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,8 +1,8 @@

 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -1221,7 +1221,7 @@ png_init_rgb_transformations(png_structp png_ptr)
            default:

            case 8:
-               /* Already 8 bits, fall through */
+               /* FALL THROUGH (already 8 bits) */

            case 16:
               /* Already a full 16 bits */
@@ -1770,8 +1770,8 @@ png_init_read_transformations(png_structp png_ptr)
         int num_palette = png_ptr->num_palette;
         int i;

-         /*NOTE: there are other transformations that should probably be in here
-          * too.
+         /* NOTE: there are other transformations that should probably be in
+          * here too.
          */
         for (i = 0; i < num_palette; i++)
         {
@@ -1830,12 +1830,15 @@ png_init_read_transformations(png_structp png_ptr)

 #ifdef PNG_READ_SHIFT_SUPPORTED
   if ((png_ptr->transformations & PNG_SHIFT) &&
+      !(png_ptr->transformations & PNG_EXPAND) &&
       (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE))
   {
      int i;
      int istop = png_ptr->num_palette;
      int shift = 8 - png_ptr->sig_bit.red;

+      png_ptr->transformations &= ~PNG_SHIFT;
+
      /* significant bits can be in the range 1 to 7 for a meaninful result, if
       * the number of significant bits is 0 then no shift is done (this is an
       * error condition which is silently ignored.)
@@ -1956,7 +1959,7 @@ png_read_transform_info(png_structp png_ptr, png_infop info_ptr)
         info_ptr->bit_depth = 8;
 #     else

-#        if PNG_READ_SCALE_16_TO_8_SUPPORTED
+#        ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
            png_ptr->transformations |= PNG_SCALE_16_TO_8;
            info_ptr->bit_depth = 8;
 #        else
@@ -2274,7 +2277,7 @@ png_do_read_transformations(png_structp png_ptr, png_row_infop row_info)
 #endif

 #ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-   /*NOTE: moved here in 1.5.4 (from much later in this list.) */
+   /* NOTE: moved here in 1.5.4 (from much later in this list.) */
   if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
       (png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
      png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
@@ -2296,6 +2299,13 @@ png_do_read_transformations(png_structp png_ptr, png_row_infop row_info)
      png_do_unpack(row_info, png_ptr->row_buf + 1);
 #endif

+#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
+   /* Added at libpng-1.5.10 */
+   if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
+       png_ptr->num_palette_max >= 0)
+      png_do_check_palette_indexes(png_ptr, row_info);
+#endif
+
 #ifdef PNG_READ_BGR_SUPPORTED
   if (png_ptr->transformations & PNG_BGR)
      png_do_bgr(row_info, png_ptr->row_buf + 1);
@@ -3293,7 +3303,7 @@ png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row)
               if (red != green || red != blue)
               {
                  rgb_error |= 1;
-                  /*NOTE: this is the historical approach which simply
+                  /* NOTE: this is the historical approach which simply
                   * truncates the results.
                   */
                  *(dp++) = (png_byte)((rc*red + gc*green + bc*blue)>>15);
@@ -3695,8 +3705,10 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        if (v == png_ptr->trans_color.gray)
                        {
                           /* Background is already in screen gamma */
-                           *sp = (png_byte)((png_ptr->background.gray >> 8) & 0xff);
-                           *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
+                           *sp = (png_byte)((png_ptr->background.gray >> 8)
+                                & 0xff);
+                           *(sp + 1) = (png_byte)(png_ptr->background.gray
+                                & 0xff);
                        }

                        else
@@ -3719,8 +3731,10 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)

                        if (v == png_ptr->trans_color.gray)
                        {
-                           *sp = (png_byte)((png_ptr->background.gray >> 8) & 0xff);
-                           *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
+                           *sp = (png_byte)((png_ptr->background.gray >> 8)
+                                & 0xff);
+                           *(sp + 1) = (png_byte)(png_ptr->background.gray
+                                & 0xff);
                        }
                     }
                  }
@@ -3800,9 +3814,12 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        /* Background is already in screen gamma */
                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) & 0xff);
+                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                                & 0xff);
+                        *(sp + 3) = (png_byte)(png_ptr->background.green
+                                & 0xff);
+                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                                & 0xff);
                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
                     }

@@ -3843,9 +3860,12 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                     {
                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) & 0xff);
+                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                                & 0xff);
+                        *(sp + 3) = (png_byte)(png_ptr->background.green
+                                & 0xff);
+                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                                & 0xff);
                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
                     }
                  }
@@ -3900,7 +3920,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        *sp = (png_byte)png_ptr->background.gray;

                     else if (a < 0xff)
-                        png_composite(*sp, *sp, a, png_ptr->background_1.gray);
+                        png_composite(*sp, *sp, a, png_ptr->background.gray);
                  }
               }
            }
@@ -3928,7 +3948,8 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                     else if (a == 0)
                     {
                        /* Background is already in screen gamma */
-                        *sp = (png_byte)((png_ptr->background.gray >> 8) & 0xff);
+                        *sp = (png_byte)((png_ptr->background.gray >> 8)
+                                & 0xff);
                        *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
                     }

@@ -3958,7 +3979,8 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)

                     if (a == 0)
                     {
-                        *sp = (png_byte)((png_ptr->background.gray >> 8) & 0xff);
+                        *sp = (png_byte)((png_ptr->background.gray >> 8)
+                                & 0xff);
                        *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
                     }

@@ -3967,7 +3989,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        png_uint_16 g, v;

                        g = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-                        png_composite_16(v, g, a, png_ptr->background_1.gray);
+                        png_composite_16(v, g, a, png_ptr->background.gray);
                        *sp = (png_byte)((v >> 8) & 0xff);
                        *(sp + 1) = (png_byte)(v & 0xff);
                     }
@@ -4088,9 +4110,12 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        /* Background is already in screen gamma */
                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) & 0xff);
+                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                                & 0xff);
+                        *(sp + 3) = (png_byte)(png_ptr->background.green
+                                & 0xff);
+                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                                & 0xff);
                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
                     }

@@ -4101,14 +4126,16 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
                        png_composite_16(w, v, a, png_ptr->background_1.red);
                        if (!optimize)
-                           w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8];
+                           w = gamma_16_from_1[((w&0xff) >> gamma_shift)]
+                               [w >> 8];
                        *sp = (png_byte)((w >> 8) & 0xff);
                        *(sp + 1) = (png_byte)(w & 0xff);

                        v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];
                        png_composite_16(w, v, a, png_ptr->background_1.green);
                        if (!optimize)
-                           w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8];
+                           w = gamma_16_from_1[((w&0xff) >> gamma_shift)]
+                               [w >> 8];

                        *(sp + 2) = (png_byte)((w >> 8) & 0xff);
                        *(sp + 3) = (png_byte)(w & 0xff);
@@ -4116,7 +4143,8 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                        v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];
                        png_composite_16(w, v, a, png_ptr->background_1.blue);
                        if (!optimize)
-                           w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8];
+                           w = gamma_16_from_1[((w&0xff) >> gamma_shift)]
+                               [w >> 8];

                        *(sp + 4) = (png_byte)((w >> 8) & 0xff);
                        *(sp + 5) = (png_byte)(w & 0xff);
@@ -4137,9 +4165,12 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structp png_ptr)
                     {
                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) & 0xff);
+                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                                & 0xff);
+                        *(sp + 3) = (png_byte)(png_ptr->background.green
+                                & 0xff);
+                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                                & 0xff);
                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
                     }

@@ -4715,7 +4746,9 @@ png_do_expand(png_row_infop row_info, png_bytep row,
         {
            if (row_info->bit_depth == 8)
            {
-               gray = gray & 0xff;
+               /* NOTE: prior to libpng 1.5.14 this cleared out the top bits of
+                * 'gray', however if those are set it is an error.
+                */
               sp = row + (png_size_t)row_width - 1;
               dp = row + (png_size_t)(row_width << 1) - 1;

--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,8 +1,8 @@

 /* pngrutil.c - utilities to read a PNG file
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -432,15 +432,16 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
      /* Now check the limits on this chunk - if the limit fails the
       * compressed data will be removed, the prefix will remain.
       */
-#ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
-      if (png_ptr->user_chunk_malloc_max &&
+      if (prefix_size >= (~(png_size_t)0) - 1 ||
+         expanded_size >= (~(png_size_t)0) - 1 - prefix_size
+#ifdef PNG_USER_LIMITS_SUPPORTED
+         || (png_ptr->user_chunk_malloc_max &&
          (prefix_size + expanded_size >= png_ptr->user_chunk_malloc_max - 1))
 #else
-#  ifdef PNG_USER_CHUNK_MALLOC_MAX
-      if ((PNG_USER_CHUNK_MALLOC_MAX > 0) &&
+         || ((PNG_USER_CHUNK_MALLOC_MAX > 0) &&
          prefix_size + expanded_size >= PNG_USER_CHUNK_MALLOC_MAX - 1)
-#  endif
 #endif
+         )
         png_warning(png_ptr, "Exceeded size limit while expanding chunk");

      /* If the size is zero either there was an error and a message
@@ -448,12 +449,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
       * and we have nothing to do - the code will exit through the
       * error case below.
       */
-#if defined(PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED) || \
-    defined(PNG_USER_CHUNK_MALLOC_MAX)
      else if (expanded_size > 0)
-#else
-      if (expanded_size > 0)
-#endif
      {
         /* Success (maybe) - really uncompress the chunk. */
         png_size_t new_size = 0;
@@ -1261,13 +1257,16 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      /* Should be an error, but we can cope with it */
      png_warning(png_ptr, "Out of place iCCP chunk");

-   if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP))
+   if ((png_ptr->mode & PNG_HAVE_iCCP) || (info_ptr != NULL &&
+      (info_ptr->valid & (PNG_INFO_iCCP|PNG_INFO_sRGB))))
   {
      png_warning(png_ptr, "Duplicate iCCP chunk");
      png_crc_finish(png_ptr, length);
      return;
   }

+   png_ptr->mode |= PNG_HAVE_iCCP;
+
 #ifdef PNG_MAX_MALLOC_64K
   if (length > (png_uint_32)65535L)
   {
@@ -1279,7 +1278,7 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_free(png_ptr, png_ptr->chunkdata);
   png_ptr->chunkdata = (png_charp)png_malloc(png_ptr, length + 1);
-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);

   if (png_crc_finish(png_ptr, skip))
@@ -1429,7 +1428,7 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
    * that the PNG_MAX_MALLOC_64K test is enabled in this case, but this is a
    * potential breakage point if the types in pngconf.h aren't exactly right.
    */
-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);

   if (png_crc_finish(png_ptr, skip))
@@ -1797,16 +1796,16 @@ png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   num = length / 2 ;
-
-   if (num != (unsigned int)png_ptr->num_palette || num >
-       (unsigned int)PNG_MAX_PALETTE_LENGTH)
+   if (length > 2*PNG_MAX_PALETTE_LENGTH ||
+       length != (unsigned int) (2*png_ptr->num_palette))
   {
      png_warning(png_ptr, "Incorrect hIST chunk length");
      png_crc_finish(png_ptr, length);
      return;
   }

+   num = length / 2 ;
+
   for (i = 0; i < num; i++)
   {
      png_byte buf[2];
@@ -1956,7 +1955,7 @@ png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);

   if (png_crc_finish(png_ptr, 0))
@@ -2105,7 +2104,7 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);
   png_ptr->chunkdata[slength] = 0x00; /* Null terminate the last string */

@@ -2265,7 +2264,7 @@ png_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
     return;
   }

-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);

   if (png_crc_finish(png_ptr, skip))
@@ -2373,7 +2372,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);

   if (png_crc_finish(png_ptr, 0))
@@ -2453,7 +2452,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   png_textp text_ptr;
   png_charp key, lang, text, lang_key;
   int comp_flag;
-   int comp_type = 0;
+   int comp_type;
   int ret;
   png_size_t slength, prefix_len, data_len;

@@ -2504,7 +2503,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   slength = (png_size_t)length;
+   slength = length;
   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);

   if (png_crc_finish(png_ptr, 0))
@@ -2534,15 +2533,24 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   else
+   comp_flag = *lang++;
+   comp_type = *lang++;
+
+   /* 1.5.14: The spec says "for uncompressed text decoders shall ignore [the
+    * compression type]".  The compression flag shall be 0 (no compression) or
+    * 1 (compressed with method 0 - deflate.)
+    */
+   if (comp_flag != 0 && comp_flag != 1)
   {
-      comp_flag = *lang++;
-      comp_type = *lang++;
+      png_warning(png_ptr, "invalid iTXt compression flag");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
+      return;
   }

-   if (comp_type || (comp_flag && comp_flag != PNG_TEXT_COMPRESSION_zTXt))
+   if (comp_flag/*compressed*/ && comp_type != 0)
   {
-      png_warning(png_ptr, "Unknown iTXt compression type or method");
+      png_warning(png_ptr, "unknown iTXt compression type");
      png_free(png_ptr, png_ptr->chunkdata);
      png_ptr->chunkdata = NULL;
      return;
@@ -2578,7 +2586,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   key=png_ptr->chunkdata;

-   if (comp_flag)
+   if (comp_flag/*compressed*/)
      png_decompress_chunk(png_ptr, comp_type,
          (size_t)length, prefix_len, &data_len);

@@ -2596,7 +2604,8 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   text_ptr->compression = (int)comp_flag + 1;
+   text_ptr->compression =
+      (comp_flag ? PNG_ITXT_COMPRESSION_zTXt : PNG_ITXT_COMPRESSION_NONE);
   text_ptr->lang_key = png_ptr->chunkdata + (lang_key - key);
   text_ptr->lang = png_ptr->chunkdata + (lang - key);
   text_ptr->itxt_length = data_len;
@@ -3661,66 +3670,6 @@ png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row,
   }
 }

-#ifdef PNG_ARM_NEON
-
-#ifdef __linux__
-#include <stdio.h>
-#include <elf.h>
-#include <asm/hwcap.h>
-
-static int png_have_hwcap(unsigned cap)
-{
-   FILE *f = fopen("/proc/self/auxv", "r");
-   Elf32_auxv_t aux;
-   int have_cap = 0;
-
-   if (!f)
-      return 0;
-
-   while (fread(&aux, sizeof(aux), 1, f) > 0)
-   {
-      if (aux.a_type == AT_HWCAP &&
-          aux.a_un.a_val & cap)
-      {
-         have_cap = 1;
-         break;
-      }
-   }
-
-   fclose(f);
-
-   return have_cap;
-}
-#endif /* __linux__ */
-
-static void
-png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
-{
-#ifdef __linux__
-   if (!png_have_hwcap(HWCAP_NEON))
-      return;
-#endif
-
-   pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_neon;
-
-   if (bpp == 3)
-   {
-      pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_neon;
-      pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_neon;
-      pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = 
-         png_read_filter_row_paeth3_neon;
-   }
-
-   else if (bpp == 4)
-   {
-      pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_neon;
-      pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_neon;
-      pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
-          png_read_filter_row_paeth4_neon;
-   }
-}
-#endif /* PNG_ARM_NEON */
-
 static void
 png_init_filter_functions(png_structp pp)
 {
@@ -3736,8 +3685,16 @@ png_init_filter_functions(png_structp pp)
      pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
         png_read_filter_row_paeth_multibyte_pixel;

-#ifdef PNG_ARM_NEON
-   png_init_filter_functions_neon(pp, bpp);
+#ifdef PNG_FILTER_OPTIMIZATIONS
+   /* To use this define PNG_FILTER_OPTIMIZATIONS as the name of a function to
+    * call to install hardware optimizations for the above functions; simply
+    * replace whatever elements of the pp->read_filter[] array with a hardware
+    * specific (or, for that matter, generic) optimization.
+    *
+    * To see an example of this examine what configure.ac does when
+    * --enable-arm-neon is specified on the command line.
+    */
+   PNG_FILTER_OPTIMIZATIONS(pp, bpp);
 #endif
 }

--- a/pngset.c
+++ b/pngset.c
@@ -1,8 +1,8 @@

 /* pngset.c - storage of image information into info struct
 *
- * Last changed in libpng 1.5.6 [November 3, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -149,7 +149,7 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
    * possible for 1/gamma to overflow the limit of 21474 and this means the
    * gamma value must be at least 5/100000 and hence at most 20000.0.  For
    * safety the limits here are a little narrower.  The values are 0.00016 to
-    * 6250.0, which are truly ridiculous gammma values (and will produce
+    * 6250.0, which are truly ridiculous gamma values (and will produce
    * displays that are all black or all white.)
    */
   if (file_gamma < 16 || file_gamma > 625000000)
@@ -692,24 +692,28 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr,
    */
   if (info_ptr->num_text + num_text > info_ptr->max_text)
   {
+      int old_max_text = info_ptr->max_text;
+      int old_num_text = info_ptr->num_text;
+
      if (info_ptr->text != NULL)
      {
         png_textp old_text;
-         int old_max;

-         old_max = info_ptr->max_text;
         info_ptr->max_text = info_ptr->num_text + num_text + 8;
         old_text = info_ptr->text;
+
         info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
            (png_size_t)(info_ptr->max_text * png_sizeof(png_text)));

         if (info_ptr->text == NULL)
         {
-            png_free(png_ptr, old_text);
+            /* Restore to previous condition */
+            info_ptr->max_text = old_max_text;
+            info_ptr->text = old_text;
            return(1);
         }

-         png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max *
+         png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max_text *
             png_sizeof(png_text)));
         png_free(png_ptr, old_text);
      }
@@ -721,7 +725,12 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr,
         info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
             (png_size_t)(info_ptr->max_text * png_sizeof(png_text)));
         if (info_ptr->text == NULL)
+         {
+            /* Restore to previous condition */
+            info_ptr->num_text = old_num_text;
+            info_ptr->max_text = old_max_text;
            return(1);
+         }
         info_ptr->free_me |= PNG_FREE_TEXT;
      }

@@ -888,6 +897,12 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
   if (png_ptr == NULL || info_ptr == NULL)
      return;

+   if (num_trans < 0 || num_trans > PNG_MAX_PALETTE_LENGTH)
+      {
+        png_warning(png_ptr, "Ignoring invalid num_trans value");
+        return;
+      }
+
   if (trans_alpha != NULL)
   {
       /* It may not actually be necessary to set png_ptr->trans_alpha here;
@@ -1024,9 +1039,16 @@ png_set_unknown_chunks(png_structp png_ptr,
   if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0)
      return;

-   np = (png_unknown_chunkp)png_malloc_warn(png_ptr,
-       (png_size_t)(info_ptr->unknown_chunks_num + num_unknowns) *
-       png_sizeof(png_unknown_chunk));
+   if (num_unknowns < 0 ||
+       num_unknowns >= UINT_MAX-info_ptr->unknown_chunks_num ||
+       num_unknowns >= PNG_SIZE_MAX/png_sizeof(png_unknown_chunk)
+       - info_ptr->unknown_chunks_num)
+      np=NULL;
+
+   else
+      np = (png_unknown_chunkp)png_malloc_warn(png_ptr,
+          (png_size_t)(info_ptr->unknown_chunks_num + num_unknowns) *
+          png_sizeof(png_unknown_chunk));

   if (np == NULL)
   {
@@ -1281,4 +1303,22 @@ png_set_benign_errors(png_structp png_ptr, int allowed)
      png_ptr->flags &= ~PNG_FLAG_BENIGN_ERRORS_WARN;
 }
 #endif /* PNG_BENIGN_ERRORS_SUPPORTED */
+
+#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
+/* Whether to report invalid palette index; added at libng-1.5.10
+ *   allowed  - one of 0: disable; 1: enable
+ */
+void PNGAPI
+png_set_check_for_invalid_index(png_structp png_ptr, int allowed)
+{
+   png_debug(1, "in png_set_check_for_invalid_index");
+
+   if (allowed)
+      png_ptr->num_palette_max = 0;
+
+   else
+      png_ptr->num_palette_max = -1;
+}
+#endif
+
 #endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
--- a/pngstruct.h
+++ b/pngstruct.h
@@ -1,11 +1,11 @@

 /* pngstruct.h - header file for PNG reference library
 *
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2012 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
- * Last changed in libpng 1.5.5 [September 22, 2011]
+ * Last changed in libpng 1.5.9 [February 18, 2012]
 *
 * This code is released under the libpng license.
 * For conditions of distribution and use, see the disclaimer
@@ -121,6 +121,12 @@ struct png_struct_def
   png_uint_32 crc;           /* current chunk CRC value */
   png_colorp palette;        /* palette from the input file */
   png_uint_16 num_palette;   /* number of color entries in palette */
+
+/* Added at libpng-1.5.10 */
+#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
+   int num_palette_max;       /* maximum palette index found in IDAT */
+#endif
+
   png_uint_16 num_trans;     /* number of transparency values */
   png_byte compression;      /* file compression type (always 0) */
   png_byte filter;           /* file filter type (always 0) */
@@ -211,13 +217,6 @@ struct png_struct_def
   int process_mode;                 /* what push library is currently doing */
   int cur_palette;                  /* current push library palette index */

-#  ifdef PNG_TEXT_SUPPORTED
-     png_size_t current_text_size;   /* current size of text input data */
-     png_size_t current_text_left;   /* how much text left to read in input */
-     png_charp current_text;         /* current text chunk buffer */
-     png_charp current_text_ptr;     /* current location in current_text */
-#  endif /* PNG_PROGRESSIVE_READ_SUPPORTED && PNG_TEXT_SUPPORTED */
-
 #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */

 #if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
@@ -249,6 +248,7 @@ struct png_struct_def
 #endif

 #ifdef PNG_TIME_RFC1123_SUPPORTED
+   /* This is going to be unused in libpng16 and removed from libpng17 */
   char time_buffer[29]; /* String to hold RFC 1123 time text */
 #endif

@@ -283,9 +283,7 @@ struct png_struct_def
 #endif

 /* New member added in libpng-1.0.4 (renamed in 1.0.9) */
-#if defined(PNG_MNG_FEATURES_SUPPORTED) || \
-    defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
-    defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
 /* Changed from png_byte to png_uint_32 at version 1.2.0 */
   png_uint_32 mng_features_permitted;
 #endif
--- a/pngtest.c
+++ b/pngtest.c
--- a/pngtest.png
+++ b/pngtest.png
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,8 +1,8 @@

 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * Last changed in libpng 1.5.4 [July 7, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.11 [June 14, 2012]
+ * Copyright (c) 1998-2012 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -619,6 +619,109 @@ png_do_bgr(png_row_infop row_info, png_bytep row)
 }
 #endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */

+#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
+    defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
+/* Added at libpng-1.5.10 */
+void /* PRIVATE */
+png_do_check_palette_indexes(png_structp png_ptr, png_row_infop row_info)
+{
+   if (png_ptr->num_palette < (1 << row_info->bit_depth) &&
+      png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */
+   {
+      /* Calculations moved outside switch in an attempt to stop different
+       * compiler warnings.  'padding' is in *bits* within the last byte, it is
+       * an 'int' because pixel_depth becomes an 'int' in the expression below,
+       * and this calculation is used because it avoids warnings that other
+       * forms produced on either GCC or MSVC.
+       */
+      int padding = (-row_info->pixel_depth * row_info->width) & 7;
+      png_bytep rp = png_ptr->row_buf + row_info->rowbytes;
+
+      switch (row_info->bit_depth)
+      {
+         case 1:
+         {
+            /* in this case, all bytes must be 0 so we don't need
+             * to unpack the pixels except for the rightmost one.
+             */
+            for (; rp > png_ptr->row_buf; rp--)
+            {
+              if (*rp >> padding != 0)
+                 png_ptr->num_palette_max = 1;
+              padding = 0;
+            }
+
+            break;
+         }
+
+         case 2:
+         {
+            for (; rp > png_ptr->row_buf; rp--)
+            {
+              int i = ((*rp >> padding) & 0x03);
+
+              if (i > png_ptr->num_palette_max)
+                 png_ptr->num_palette_max = i;
+
+              i = (((*rp >> padding) >> 2) & 0x03);
+
+              if (i > png_ptr->num_palette_max)
+                 png_ptr->num_palette_max = i;
+
+              i = (((*rp >> padding) >> 4) & 0x03);
+
+              if (i > png_ptr->num_palette_max)
+                 png_ptr->num_palette_max = i;
+
+              i = (((*rp >> padding) >> 6) & 0x03);
+
+              if (i > png_ptr->num_palette_max)
+                 png_ptr->num_palette_max = i;
+
+              padding = 0;
+            }
+
+            break;
+         }
+
+         case 4:
+         {
+            for (; rp > png_ptr->row_buf; rp--)
+            {
+              int i = ((*rp >> padding) & 0x0f);
+
+              if (i > png_ptr->num_palette_max)
+                 png_ptr->num_palette_max = i;
+
+              i = (((*rp >> padding) >> 4) & 0x0f);
+
+              if (i > png_ptr->num_palette_max)
+                 png_ptr->num_palette_max = i;
+
+              padding = 0;
+            }
+
+            break;
+         }
+
+         case 8:
+         {
+            for (; rp > png_ptr->row_buf; rp--)
+            {
+               if (*rp > png_ptr->num_palette_max)
+                  png_ptr->num_palette_max = (int) *rp;
+            }
+
+            break;
+         }
+
+         default:
+            break;
+      }
+   }
+}
+#endif /* PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED */
+
 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
    defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 #ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
--- a/pngusr.dfa
+++ b/pngusr.dfa
@@ -0,0 +1,14 @@
+# pngusr.dfa
+#
+# Build time configuration of libpng
+#
+# Enter build configuration options in this file
+#
+# Security settings: by default these limits are unset, you can change them
+# here by entering the appropriate values as #defines preceded by '@' (to cause,
+# them to be passed through to the build of pnglibconf.h), for example:
+#
+# @# define PNG_USER_WIDTH_MAX 1000000
+# @# define PNG_USER_HEIGHT_MAX 1000000
+# @# define PNG_USER_CHUNK_CACHE_MAX 128
+# @# define PNG_USER_CHUNK_MALLOC_MAX 8000000
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,8 +1,8 @@

 /* pngwrite.c - general routines to write a PNG file
 *
- * Last changed in libpng 1.5.7 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -12,9 +12,6 @@
 */

 #include "pngpriv.h"
-#if defined PNG_SIMPLIFIED_WRITE_SUPPORTED && defined PNG_STDIO_SUPPORTED
-#  include <errno.h>
-#endif

 #ifdef PNG_WRITE_SUPPORTED

@@ -308,6 +305,11 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
   if (!(png_ptr->mode & PNG_HAVE_IDAT))
      png_error(png_ptr, "No IDATs written into file");

+#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
+   if (png_ptr->num_palette_max > png_ptr->num_palette)
+      png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
+#endif
+
   /* See if user wants us to write information chunks */
   if (info_ptr != NULL)
   {
@@ -418,7 +420,6 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
 }

 #ifdef PNG_CONVERT_tIME_SUPPORTED
-/* "tm" structure is not supported on WindowsCE */
 void PNGAPI
 png_convert_from_struct_tm(png_timep ptime, PNG_CONST struct tm FAR * ttime)
 {
@@ -801,6 +802,14 @@ png_write_row(png_structp png_ptr, png_const_bytep row)
   }
 #endif

+/* Added at libpng-1.5.10 */
+#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
+   /* Check for out-of-range palette index */
+   if (row_info.color_type == PNG_COLOR_TYPE_PALETTE &&
+       png_ptr->num_palette_max >= 0)
+      png_do_check_palette_indexes(png_ptr, &row_info);
+#endif
+
   /* Find a filter if necessary, filter the row and write it out. */
   png_write_find_filter(png_ptr, &row_info);

@@ -1032,6 +1041,7 @@ png_set_filter(png_structp png_ptr, int method, int filters)
         case 5:
         case 6:
         case 7: png_warning(png_ptr, "Unknown row filter for method 0");
+             /* FALL THROUGH */
 #endif /* PNG_WRITE_FILTER_SUPPORTED */
         case PNG_FILTER_VALUE_NONE:
            png_ptr->do_filter = PNG_FILTER_NONE; break;
@@ -1655,563 +1665,4 @@ png_write_png(png_structp png_ptr, png_infop info_ptr,
   PNG_UNUSED(params)
 }
 #endif
-
-
-#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-#ifdef PNG_STDIO_SUPPORTED /* currently required for png_image_write_* */
-/* Initialize the write structure - general purpose utility. */
-static int
-png_image_write_init(png_imagep image)
-{
-   png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, image,
-          png_safe_error, png_safe_warning);
-
-   if (png_ptr != NULL)
-   {
-      png_infop info_ptr = png_create_info_struct(png_ptr);
-
-      if (info_ptr != NULL)
-      {
-         png_controlp control = png_voidcast(png_controlp,
-            png_malloc_warn(png_ptr, sizeof *control));
-
-         if (control != NULL)
-         {
-            memset(control, 0, sizeof *control);
-
-            control->png_ptr = png_ptr;
-            control->info_ptr = info_ptr;
-            control->for_write = 1;
-
-            image->opaque = control;
-            return 1;
-         }
-
-         /* Error clean up */
-         png_destroy_info_struct(png_ptr, &info_ptr);
-      }
-
-      png_destroy_write_struct(&png_ptr, NULL);
-   }
-
-   return png_image_error(image, "png_image_read: out of memory");
-}
-
-/* Arguments to png_image_write_main: */
-typedef struct
-{
-   /* Arguments: */
-   png_imagep      image;
-   png_const_voidp buffer;
-   png_int_32      row_stride;
-   int             convert_to_8bit;
-   /* Local variables: */
-   png_const_voidp first_row;
-   ptrdiff_t       row_bytes;
-   png_voidp       local_row;
-} png_image_write_control;
-
-/* Write png_uint_16 input to a 16-bit PNG; the png_ptr has already been set to
- * do any necessary byte swapping.  The component order is defined by the
- * png_image format value.
- */
-static int
-png_write_image_16bit(png_voidp argument)
-{
-   png_image_write_control *display = png_voidcast(png_image_write_control*,
-      argument);
-   png_imagep image = display->image;
-   png_structp png_ptr = image->opaque->png_ptr;
-
-   png_const_uint_16p input_row = png_voidcast(png_const_uint_16p,
-      display->first_row);
-   png_uint_16p output_row = png_voidcast(png_uint_16p, display->local_row);
-   png_uint_16p row_end;
-   int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1;
-   int aindex = 0;
-   png_uint_32 y = image->height;
-
-   if (image->format & PNG_FORMAT_FLAG_ALPHA)
-   {
-      if (image->format & PNG_FORMAT_FLAG_AFIRST)
-      {
-         aindex = -1;
-         ++input_row; /* To point to the first component */
-         ++output_row;
-      }
-
-      else
-         aindex = channels;
-   }
-
-   else
-      png_error(png_ptr, "png_write_image: internal call error");
-
-   /* Work out the output row end and count over this, note that the increment
-    * above to 'row' means that row_end can actually be beyond the end of the
-    * row; this is correct.
-    */
-   row_end = output_row + image->width * (channels+1);
-
-   while (y-- > 0)
-   {
-      png_const_uint_16p in_ptr = input_row;
-      png_uint_16p out_ptr = output_row;
-
-      while (out_ptr < row_end)
-      {
-         png_uint_16 alpha = in_ptr[aindex];
-         png_uint_32 reciprocal = 0;
-         int c;
-
-         out_ptr[aindex] = alpha;
-
-         /* Calculate a reciprocal.  The correct calculation is simply
-          * component/alpha*65535 << 15. (I.e. 15 bits of precision); this
-          * allows correct rounding by adding .5 before the shift.  'reciprocal'
-          * is only initialized when required.
-          */
-         if (alpha > 0 && alpha < 65535)
-            reciprocal = ((0xffff<<15)+(alpha>>1))/alpha;
-
-         c = channels;
-         do /* always at least one channel */
-         {
-            png_uint_16 component = *in_ptr++;
-
-            /* The following gives 65535 for an alpha of 0, which is fine,
-             * otherwise if 0/0 is represented as some other value there is more
-             * likely to be a discontinuity which will probably damage
-             * compression when moving from a fully transparent area to a
-             * nearly transparent one.  (The assumption here is that opaque
-             * areas tend not to be 0 intensity.)
-             */
-            if (component >= alpha)
-               component = 65535;
-
-            /* component<alpha, so component/alpha is less than one and
-             * component*reciprocal is less than 2^31.
-             */
-            else if (component > 0 && alpha < 65535)
-            {
-               png_uint_32 calc = component * reciprocal;
-               calc += 16384; /* round to nearest */
-               component = (png_uint_16)(calc >> 15);
-            }
-
-            *out_ptr++ = component;
-         }
-         while (--c > 0);
-
-         /* Skip to next component (skip the intervening alpha channel) */
-         ++in_ptr;
-         ++out_ptr;
-      }
-
-      png_write_row(png_ptr, png_voidcast(png_const_bytep, display->local_row));
-      input_row += display->row_bytes/(sizeof (png_uint_16));
-   }
-
-   return 1;
-}
-
-/* Given 16-bit input (1 to 4 channels) write 8-bit output.  If an alpha channel
- * is present it must be removed from the components, the components are then
- * written in sRGB encoding.  No components are added or removed.
- */
-static int
-png_write_image_8bit(png_voidp argument)
-{
-   png_image_write_control *display = png_voidcast(png_image_write_control*,
-      argument);
-   png_imagep image = display->image;
-   png_structp png_ptr = image->opaque->png_ptr;
-
-   png_const_uint_16p input_row = png_voidcast(png_const_uint_16p,
-      display->first_row);
-   png_bytep output_row = png_voidcast(png_bytep, display->local_row);
-   png_uint_32 y = image->height;
-   int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1;
-
-   if (image->format & PNG_FORMAT_FLAG_ALPHA)
-   {
-      png_bytep row_end;
-      int aindex;
-
-      if (image->format & PNG_FORMAT_FLAG_AFIRST)
-      {
-         aindex = -1;
-         ++input_row; /* To point to the first component */
-         ++output_row;
-      }
-
-      else
-         aindex = channels;
-
-      /* Use row_end in place of a loop counter: */
-      row_end = output_row + image->width * (channels+1);
-
-      while (y-- > 0)
-      {
-         png_const_uint_16p in_ptr = input_row;
-         png_bytep out_ptr = output_row;
-
-         if (aindex != 0) while (out_ptr < row_end) /* Alpha channel case */
-         {
-            png_uint_16 alpha = in_ptr[aindex];
-            png_uint_32 reciprocal = 0;
-            int c;
-
-            /* Scale and write the alpha channel.  See pngrtran.c
-             * png_do_scale_16_to_8 for a discussion of this calculation.  The
-             * code here has machine native values, so use:
-             *
-             *    (V * 255 + 32895) >> 16
-             */
-            out_ptr[aindex] = (png_byte)((alpha * 255 + 32895) >> 16);
-
-            /* Calculate a reciprocal.  As above the calculation can be done to
-             * 15 bits of accuracy, however the output needs to be scaled in the
-             * range 0..255*65535, so include that scaling here.
-             */
-            if (alpha > 0 && alpha < 65535)
-               reciprocal = (((0xffff*0xff)<<7)+(alpha>>1))/alpha;
-
-            c = channels;
-            do /* always at least one channel */
-            {
-               /* Need 32 bit accuracy in the sRGB tables */
-               png_uint_32 component = *in_ptr++;
-
-               /* The following gives 1.0 for an alpha of 0, which is fine,
-                * otherwise if 0/0 is represented as some other value there is
-                * more likely to be a discontinuity which will probably damage
-                * compression when moving from a fully transparent area to a
-                * nearly transparent one.  (The assumption here is that opaque
-                * areas tend not to be 0 intensity.)
-                */
-               if (component >= alpha)
-                  *out_ptr++ = 255;
-
-               /* component<alpha, so component/alpha is less than one and
-                * component*reciprocal is less than 2^31.
-                */
-               else if (component > 0)
-               {
-                  if (alpha < 65535)
-                  {
-                     component *= reciprocal;
-                     component += 64; /* round to nearest */
-                     component >>= 7;
-                  }
-
-                  else
-                     component *= 255;
-
-                  /* Convert the component to sRGB. */
-                  *out_ptr++ = (png_byte)PNG_sRGB_FROM_LINEAR(component);
-               }
-
-               else
-                  *out_ptr++ = 0;
-            }
-            while (--c > 0);
-
-            /* Skip to next component (skip the intervening alpha channel) */
-            ++in_ptr;
-            ++out_ptr;
-         } /* while out_ptr < row_end */
-
-         png_write_row(png_ptr, png_voidcast(png_const_bytep,
-            display->local_row));
-         input_row += display->row_bytes/(sizeof (png_uint_16));
-      } /* while y */
-   }
-
-   else
-   {
-      /* No alpha channel, so the row_end really is the end of the row and it
-       * is sufficient to loop over the components one by one.
-       */
-      png_bytep row_end = output_row + image->width * channels;
-
-      while (y-- > 0)
-      {
-         png_const_uint_16p in_ptr = input_row;
-         png_bytep out_ptr = output_row;
-
-         while (out_ptr < row_end)
-         {
-            png_uint_32 component = *in_ptr++;
-
-            component *= 255;
-            *out_ptr++ = (png_byte)PNG_sRGB_FROM_LINEAR(component);
-         }
-
-         png_write_row(png_ptr, output_row);
-         input_row += display->row_bytes/(sizeof (png_uint_16));
-      }
-   }
-
-   return 1;
-}
-
-static int
-png_image_write_main(png_voidp argument)
-{
-   png_image_write_control *display = png_voidcast(png_image_write_control*,
-      argument);
-   png_imagep image = display->image;
-   png_structp png_ptr = image->opaque->png_ptr;
-   png_infop info_ptr = image->opaque->info_ptr;
-   png_uint_32 format = image->format;
-
-   int linear = (format & PNG_FORMAT_FLAG_LINEAR) != 0; /* input */
-   int alpha = (format & PNG_FORMAT_FLAG_ALPHA) != 0;
-   int write_16bit = linear && !display->convert_to_8bit;
-
-   /* Default the 'row_stride' parameter if required. */
-   if (display->row_stride == 0)
-      display->row_stride = PNG_IMAGE_ROW_STRIDE(*image);
-
-   /* Set the required transforms then write the rows in the correct order. */
-   png_set_IHDR(png_ptr, info_ptr, image->width, image->height,
-      write_16bit ? 16 : 8,
-      ((format & PNG_FORMAT_FLAG_COLOR) ? PNG_COLOR_MASK_COLOR : 0) +
-      ((format & PNG_FORMAT_FLAG_ALPHA) ? PNG_COLOR_MASK_ALPHA : 0),
-      PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
-   /* Counter-intuitively the data transformations must be called *after*
-    * png_write_info, not before as in the read code, but the 'set' functions
-    * must still be called before.  Just set the color space information, never
-    * write an interlaced image.
-    */
-   if (write_16bit)
-   {
-      /* The gamma here is 1.0 (linear) and the cHRM chunk matches sRGB. */
-      png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_LINEAR);
-
-      if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB))
-         png_set_cHRM_fixed(png_ptr, info_ptr,
-            /* color      x       y */
-            /* white */ 31270, 32900,
-            /* red   */ 64000, 33000,
-            /* green */ 30000, 60000,
-            /* blue  */ 15000,  6000
-         );
-   }
-
-   else if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB))
-      png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_PERCEPTUAL);
-
-   /* Else writing an 8-bit file and the *colors* aren't sRGB, but the 8-bit
-    * space must still be gamma encoded.
-    */
-   else
-      png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_sRGB_INVERSE);
-
-   /* Write the file header. */
-   png_write_info(png_ptr, info_ptr);
-
-   /* Now set up the data transformations (*after* the header is written),
-    * remove the handled transformations from the 'format' flags for checking.
-    *
-    * First check for a little endian system if writing 16 bit files.
-    */
-   if (write_16bit)
-   {
-      PNG_CONST png_uint_16 le = 0x0001;
-
-      if (*(png_const_bytep)&le)
-         png_set_swap(png_ptr);
-   }
-
-#  ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-      if (format & PNG_FORMAT_FLAG_BGR)
-      {
-         if (format & PNG_FORMAT_FLAG_COLOR)
-            png_set_bgr(png_ptr);
-         format &= ~PNG_FORMAT_FLAG_BGR;
-      }
-#  endif
-
-#  ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-      if (format & PNG_FORMAT_FLAG_AFIRST)
-      {
-         if (format & PNG_FORMAT_FLAG_ALPHA)
-            png_set_swap_alpha(png_ptr);
-         format &= ~PNG_FORMAT_FLAG_AFIRST;
-      }
-#  endif
-
-   /* That should have handled all (both) the transforms. */
-   if ((format & ~(png_uint_32)(PNG_FORMAT_FLAG_COLOR | PNG_FORMAT_FLAG_LINEAR |
-         PNG_FORMAT_FLAG_ALPHA)) != 0)
-      png_error(png_ptr, "png_write_image: unsupported transformation");
-
-   {
-      png_const_bytep row = png_voidcast(png_const_bytep, display->buffer);
-      ptrdiff_t row_bytes = display->row_stride;
-
-      if (linear)
-         row_bytes *= sizeof (png_uint_16);
-
-      if (row_bytes < 0)
-         row += (image->height-1) * (-row_bytes);
-
-      display->first_row = row;
-      display->row_bytes = row_bytes;
-   }
-
-   /* Check for the cases that currently require a pre-transform on the row
-    * before it is written.  This only applies when the input is 16-bit and
-    * either there is an alpha channel or it is converted to 8-bit.
-    */
-   if ((linear && alpha) || display->convert_to_8bit)
-   {
-      png_bytep row = png_voidcast(png_bytep, png_malloc(png_ptr,
-         png_get_rowbytes(png_ptr, info_ptr)));
-      int result;
-
-      display->local_row = row;
-      if (write_16bit)
-         result = png_safe_execute(image, png_write_image_16bit, display);
-      else
-         result = png_safe_execute(image, png_write_image_8bit, display);
-      display->local_row = NULL;
-
-      png_free(png_ptr, row);
-
-      /* Skip the 'write_end' on error: */
-      if (!result)
-         return 0;
-   }
-
-   /* Otherwise this is the case where the input is in a format currently
-    * supported by the rest of the libpng write code; call it directly.
-    */
-   else
-   {
-      png_const_bytep row = png_voidcast(png_const_bytep, display->first_row);
-      ptrdiff_t row_bytes = display->row_bytes;
-      png_uint_32 y = image->height;
-
-      while (y-- > 0)
-      {
-         png_write_row(png_ptr, row);
-         row += row_bytes;
-      }
-   }
-
-   png_write_end(png_ptr, info_ptr);
-   return 1;
-}
-
-int PNGAPI
-png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit,
-   const void *buffer, png_int_32 row_stride)
-{
-   /* Write the image to the given (FILE*). */
-   if (image != NULL)
-   {
-      if (file != NULL)
-      {
-         if (png_image_write_init(image))
-         {
-            png_image_write_control display;
-            int result;
-
-            /* This is slightly evil, but png_init_io doesn't do anything other
-             * than this and we haven't changed the standard IO functions so
-             * this saves a 'safe' function.
-             */
-            image->opaque->png_ptr->io_ptr = file;
-
-            memset(&display, 0, sizeof display);
-            display.image = image;
-            display.buffer = buffer;
-            display.row_stride = row_stride;
-            display.convert_to_8bit = convert_to_8bit;
-
-            result = png_safe_execute(image, png_image_write_main, &display);
-            png_image_free(image);
-            return result;
-         }
-
-         else
-            return 0;
-      }
-
-      else
-         return png_image_error(image,
-            "png_image_write_to_stdio: invalid argument");
-   }
-
-   else
-      return 0;
-}
-
-int PNGAPI
-png_image_write_to_file(png_imagep image, const char *file_name,
-   int convert_to_8bit, const void *buffer, png_int_32 row_stride)
-{
-   /* Write the image to the named file. */
-   if (image != NULL)
-   {
-      if (file_name != NULL)
-      {
-         FILE *fp = fopen(file_name, "wb");
-
-         if (fp != NULL)
-         {
-            if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer,
-               row_stride))
-            {
-               int error; /* from fflush/fclose */
-
-               /* Make sure the file is flushed correctly. */
-               if (fflush(fp) == 0 && ferror(fp) == 0)
-               {
-                  if (fclose(fp) == 0)
-                     return 1;
-
-                  error = errno; /* from fclose */
-               }
-
-               else
-               {
-                  error = errno; /* from fflush or ferror */
-                  (void)fclose(fp);
-               }
-
-               (void)remove(file_name);
-               /* The image has already been cleaned up; this is just used to
-                * set the error (because the original write succeeded).
-                */
-               return png_image_error(image, strerror(error));
-            }
-
-            else
-            {
-               /* Clean up: just the opened file. */
-               (void)fclose(fp);
-               (void)remove(file_name);
-               return 0;
-            }
-         }
-
-         else
-            return png_image_error(image, strerror(errno));
-      }
-
-      else
-         return png_image_error(image,
-            "png_image_write_to_file: invalid argument");
-   }
-
-   else
-      return 0;
-}
-#endif /* PNG_STDIO_SUPPORTED */
-#endif /* SIMPLIFIED_WRITE */
 #endif /* PNG_WRITE_SUPPORTED */
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -1,8 +1,8 @@

 /* pngwtran.c - transforms the data in a row for PNG writers
 *
- * Last changed in libpng 1.5.6 [November 3, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -45,8 +45,20 @@ png_do_write_transformations(png_structp png_ptr, png_row_infop row_info)

 #ifdef PNG_WRITE_FILLER_SUPPORTED
   if (png_ptr->transformations & PNG_FILLER)
-      png_do_strip_channel(row_info, png_ptr->row_buf + 1,
-         !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
+   {
+      if (png_ptr->color_type & (PNG_COLOR_MASK_ALPHA|PNG_COLOR_MASK_PALETTE))
+      {
+         /* GA, RGBA or palette; in any of these cases libpng will not do the
+          * the correct thing (whatever that might be).
+          */
+         png_warning(png_ptr, "incorrect png_set_filler call ignored");
+         png_ptr->transformations &= ~PNG_FILLER;
+      }
+
+      else
+         png_do_strip_channel(row_info, png_ptr->row_buf + 1,
+            !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
+   }
 #endif

 #ifdef PNG_WRITE_PACKSWAP_SUPPORTED
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,8 +1,8 @@

 /* pngwutil.c - utilities to write a PNG file
 *
- * Last changed in libpng 1.5.6 [November 3, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.14 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -460,24 +460,21 @@ png_text_compress(png_structp png_ptr,
               old_ptr = comp->output_ptr;

               comp->output_ptr = (png_bytepp)png_malloc(png_ptr,
-                   (png_alloc_size_t)
-                   (comp->max_output_ptr * png_sizeof(png_charpp)));
+                   (comp->max_output_ptr * png_sizeof(png_bytep)));

               png_memcpy(comp->output_ptr, old_ptr, old_max
-                   * png_sizeof(png_charp));
+                   * png_sizeof(png_bytep));

               png_free(png_ptr, old_ptr);
            }
            else
               comp->output_ptr = (png_bytepp)png_malloc(png_ptr,
-                   (png_alloc_size_t)
-                   (comp->max_output_ptr * png_sizeof(png_charp)));
+                   (comp->max_output_ptr * png_sizeof(png_bytep)));
         }

         /* Save the data */
         comp->output_ptr[comp->num_output_ptr] =
-             (png_bytep)png_malloc(png_ptr,
-             (png_alloc_size_t)png_ptr->zbuf_size);
+             (png_bytep)png_malloc(png_ptr, png_ptr->zbuf_size);

         png_memcpy(comp->output_ptr[comp->num_output_ptr], png_ptr->zbuf,
             png_ptr->zbuf_size);
@@ -569,14 +566,15 @@ png_text_compress(png_structp png_ptr,

 /* Ship the compressed text out via chunk writes */
 static void /* PRIVATE */
-png_write_compressed_data_out(png_structp png_ptr, compression_state *comp)
+png_write_compressed_data_out(png_structp png_ptr, compression_state *comp,
+   png_size_t data_len)
 {
   int i;

   /* Handle the no-compression case */
   if (comp->input)
   {
-      png_write_chunk_data(png_ptr, comp->input, comp->input_len);
+      png_write_chunk_data(png_ptr, comp->input, data_len);

      return;
   }
@@ -585,7 +583,7 @@ png_write_compressed_data_out(png_structp png_ptr, compression_state *comp)
   /* The zbuf_size test is because the code below doesn't work if zbuf_size is
    * '1'; simply skip it to avoid memory overwrite.
    */
-   if (comp->input_len >= 2 && comp->input_len < 16384 && png_ptr->zbuf_size > 1)
+   if (data_len >= 2 && comp->input_len < 16384 && png_ptr->zbuf_size > 1)
   {
      unsigned int z_cmf;  /* zlib compression method and flags */

@@ -1164,8 +1162,7 @@ png_write_iCCP(png_structp png_ptr, png_const_charp name, int compression_type,

   if (profile_len)
   {
-      comp.input_len = profile_len;
-      png_write_compressed_data_out(png_ptr, &comp);
+      png_write_compressed_data_out(png_ptr, &comp, profile_len);
   }

   png_write_chunk_end(png_ptr);
@@ -1370,7 +1367,8 @@ png_write_tRNS(png_structp png_ptr, png_const_bytep trans_alpha,
      }

      /* Write the chunk out as it is */
-      png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha, (png_size_t)num_trans);
+      png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha,
+         (png_size_t)num_trans);
   }

   else if (color_type == PNG_COLOR_TYPE_GRAY)
@@ -1735,8 +1733,7 @@ png_write_zTXt(png_structp png_ptr, png_const_charp key, png_const_charp text,
   png_write_chunk_data(png_ptr, &buf, (png_size_t)1);

   /* Write the compressed data */
-   comp.input_len = text_len;
-   png_write_compressed_data_out(png_ptr, &comp);
+   png_write_compressed_data_out(png_ptr, &comp, text_len);

   /* Close the chunk */
   png_write_chunk_end(png_ptr);
@@ -1827,7 +1824,7 @@ png_write_iTXt(png_structp png_ptr, int compression, png_const_charp key,
   png_write_chunk_data(png_ptr, (lang_key ? (png_const_bytep)lang_key : cbuf),
       (png_size_t)(lang_key_len + 1));

-   png_write_compressed_data_out(png_ptr, &comp);
+   png_write_compressed_data_out(png_ptr, &comp, text_len);

   png_write_chunk_end(png_ptr);

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+#
+@if not exist pngconfig.dfa $(MAKE) $(__MAKEOPTS__) -f pngconfig.mak defaults
+@if exist config.inf type config.inf
+@echo Checking for the libpng configuration file pnglibconf.h
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-# configuration header.  You can ignore this file if you don't need to
-# configure libpng; a default configuration will be built.
-#
-# For more information build libpng.wpj under the IDE and then read the
-# generated files:
-#
-#    config.inf: Basic configuration information for a standard build.
-#    pngconfig.dfa: Advanced configuration for non-standard libpng builds.
-#
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-ECHO=echo
-COPY=copy
-#
-# If your configuration needs to test compiler flags when building
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-CC=wcl386
-CPP=$(CC) -pw0
-#
-# Read awk from the environment if set, else it can be set on the command
-# line (the default approach is to set the %awk% environment variable in the
-# IDE libpng.wpj 'before' rule - this setting is local.)
-!ifdef %awk
-AWK=$(%awk)
-!endif
-#
-# pnglibconf.h must exist in the source directory, this is the final rule
-# which copies the local built version (and this is the default target for
-# this makefile.)
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- $(COPY) pnglibconf.h $@
-
-!ifdef AWK
-# CPPFLAGS should contain the options to control the result,
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-# as appropriate
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-
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- $(DELETE) $@ dfn.c dfn1.out dfn2.out
- $(ECHO) $#include "pnglibconf.dfn" >dfn.c
- $(CPP) $(DFNFLAGS) dfn.c >dfn1.out
- $(AWK) -f << dfn1.out >dfn2.out
-/^.*PNG_DEFN_MAGIC-.*-PNG_DEFN_END.*$$/{
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- sub(/ *-PNG_DEFN_END.*$$/, "")
- gsub(/ *@@@ */, "")
- print
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-<<
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-
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- $(COPY) dfn2.out $@
- $(DELETE) dfn1.out dfn2.out
-
-!else
-# The following lines are used to copy scripts\pnglibconf.h.prebuilt and make
-# the required change to the calling convention.
-#
-# By default libpng is built to use the __cdecl calling convention on
-# Windows.  This gives compatibility with MSVC and GCC.  Unfortunately it
-# does not work with OpenWatcom because OpenWatcom implements longjmp using
-# the __watcall convention (compared with both MSVC and GCC which use __cdecl
-# for library functions.)
-#
-# Thus the default must be changed to build on OpenWatcom and, once changed,
-# the result will not be compatible with applications built using other
-# compilers (in fact attempts to build will fail at compile time.)
-#
-pnglibconf.h: ..\..\scripts\pnglibconf.h.prebuilt .existsonly
- @$(ECHO) .
- @$(ECHO) .
- @$(ECHO) $$(AWK) NOT AVAILABLE: COPYING scripts\pnglibconf.h.prebuilt
- @$(ECHO) .
- @$(ECHO) .
- vi -q -k ":1,$$s/PNG_API_RULE 0$$/PNG_API_RULE 2/\n:w! $@\n:q!\n" ..\..\scripts\pnglibconf.h.prebuilt
- @$(ECHO) .
- @$(ECHO) .
- @$(ECHO) YOU HAVE A DEFAULT CONFIGURATION BECAUSE YOU DO NOT HAVE AWK!
- @$(ECHO) .
- @$(ECHO) .
- @type << >pngconfig.inf
-This is the default configuration of libpng.lib, if you wish to
-change the configuration please consult the instructions in
-projects/owatcom/pngconfig.dfa.
-<<
-
-!endif
-
-# Make the default files
-defaults: .symbolic
- @$(COPY) << config.inf
-$# The libpng project is incompletely configured.  To complete configuration
-$# please complete the following steps:
-$#
-$#   1) Edit the 'before' rule of libpng.wpj (from the IDE) to define the
-$#      locations of the zlib include file zlib.h and the built zlib library,
-$#      zlib.lib.
-$#
-$#   2) If you want to change libpng to a non-standard configuration also
-$#      change the definition of 'awk' in the before rule to the name of your
-$#      awk command.  For more instructions on configuration read
-$#      pngconfig.dfa.
-$#
-$#   3) Delete this file (config.inf).
-<<
- @$(COPY) << pngconfig.dfa
-$# pngconfig.dfa: this file contains configuration options for libpng.
-$# If emtpy the standard configuration will be built.  For this file to be
-$# used a working version of the program 'awk' is required and the program
-$# must be identified in the 'before' rule of the project.
-$#
-$# If you don't already have 'awk', or the version of awk you have seems not
-$# to work, download Brian Kernighan's awk (Brian Kernighan is the author of
-$# awk.)  You can find source code and a built executable (called awk95.exe)
-$# here:
-$#
-$#     http://www.cs.princeton.edu/~bwk/btl.mirror/
-$#
-$# The executable works just fine.
-$#
-$# If build issues errors after a change to pngconfig.dfa you have entered
-$# inconsistent feature requests, or even malformed requests, in
-$# pngconfig.dfa.  The error messages from awk should be comprehensible, but
-$# if not simply go back to the start (nothing but comments in this file) and
-$# enter configuration lines one by one until one produces an error.  (Or, of
-$# course, do the standard binary chop.)
-$#
-$# You need to rebuild everything after a change to pnglibconf.dfa - i.e. you
-$# must do Actions/Mark All Targets for Remake.  This is because the compiler
-$# generated dependency information (as of OpenWatcom 1.9) does not record the
-$# dependency on pnglibconf.h correctly.
-$#
-$# If awk isn't set then this file is bypassed.  If you just want the standard
-$# configuration it is automatically produced from the distributed version
-$# (scripts\pnglibconf.h.prebuilt) by editting PNG_API_RULE to 2 (to force use
-$# of the OpenWatcom library calling convention.)
-$#
-<<
-
-clean:: .symbolic
- $(DELETE) ..\..\pnglibconf.h pnglibconf.* dfn.c *.out pngconfig.inf
- $(DELETE) *.obj *.mbr *.sym *.err *.pch libpng.mk
- $(DELETE) libpng.lib libpng.lbr libpng.lb1 libpng.cbr libpng.mk1
- $(DELETE) pngtest.exe pngtest.map pngtest.lk1 pngtest.mk1
- $(DELETE) pngvalid.exe pngvalid.map pngvalid.lk1 pngvalid.mk1
-
-distclean:: clean .symbolic
- $(DELETE) zlib.inf awk.inf config.inf pngconfig.dfa
+# This is an OpenWatcom make file which builds pnglibconf.h - the libpng
+# configuration header.  You can ignore this file if you don't need to
+# configure libpng; a default configuration will be built.
+#
+# For more information build libpng.wpj under the IDE and then read the
+# generated files:
+#
+#    config.inf: Basic configuration information for a standard build.
+#    pngconfig.dfa: Advanced configuration for non-standard libpng builds.
+#
+DELETE=rm -f
+ECHO=echo
+COPY=copy
+#
+# If your configuration needs to test compiler flags when building
+# pnglibconf.h you may need to override the following on the wmake command
+# line:
+CFLAGS=
+CC=wcl386
+CPP=$(CC) -pw0
+#
+# Read awk from the environment if set, else it can be set on the command
+# line (the default approach is to set the %awk% environment variable in the
+# IDE libpng.wpj 'before' rule - this setting is local.)
+!ifdef %awk
+AWK=$(%awk)
+!endif
+#
+# pnglibconf.h must exist in the source directory, this is the final rule
+# which copies the local built version (and this is the default target for
+# this makefile.)
+..\..\pnglibconf.h: pnglibconf.h
+ $(COPY) pnglibconf.h $@
+
+!ifdef AWK
+# CPPFLAGS should contain the options to control the result,
+# but DEFS and CFLAGS are also supported here, override
+# as appropriate
+DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
+
+pnglibconf.h: pnglibconf.dfn
+ $(DELETE) $@ dfn.c dfn1.out dfn2.out
+ $(ECHO) $#include "pnglibconf.dfn" >dfn.c
+ $(CPP) $(DFNFLAGS) dfn.c >dfn1.out
+ $(AWK) -f << dfn1.out >dfn2.out
+/^.*PNG_DEFN_MAGIC-.*-PNG_DEFN_END.*$$/{
+ sub(/^.*PNG_DEFN_MAGIC-/, "")
+ sub(/ *-PNG_DEFN_END.*$$/, "")
+ gsub(/ *@@@ */, "")
+ print
+}
+<<
+ $(COPY) dfn2.out $@
+ @type << >pngconfig.inf
+This is a locally configurable build of libpng.lib; for configuration
+instructions consult and edit projects/openwatcom/pngconfig.dfa
+<<
+ $(DELETE) dfn.c dfn1.out dfn2.out
+
+pnglibconf.dfn: ..\..\scripts\pnglibconf.dfa ..\..\scripts\options.awk pngconfig.dfa ..\..\pngconf.h
+ $(DELETE) $@ dfn1.out dfn2.out
+ $(AWK) -f ..\..\scripts\options.awk out=dfn1.out version=search ..\..\pngconf.h ..\..\scripts\pnglibconf.dfa pngconfig.dfa $(DFA_XTRA) 1>&2
+ $(AWK) -f ..\..\scripts\options.awk out=dfn2.out dfn1.out 1>&2
+ $(COPY) dfn2.out $@
+ $(DELETE) dfn1.out dfn2.out
+
+!else
+# The following lines are used to copy scripts\pnglibconf.h.prebuilt and make
+# the required change to the calling convention.
+#
+# By default libpng is built to use the __cdecl calling convention on
+# Windows.  This gives compatibility with MSVC and GCC.  Unfortunately it
+# does not work with OpenWatcom because OpenWatcom implements longjmp using
+# the __watcall convention (compared with both MSVC and GCC which use __cdecl
+# for library functions.)
+#
+# Thus the default must be changed to build on OpenWatcom and, once changed,
+# the result will not be compatible with applications built using other
+# compilers (in fact attempts to build will fail at compile time.)
+#
+pnglibconf.h: ..\..\scripts\pnglibconf.h.prebuilt .existsonly
+ @$(ECHO) .
+ @$(ECHO) .
+ @$(ECHO) $$(AWK) NOT AVAILABLE: COPYING scripts\pnglibconf.h.prebuilt
+ @$(ECHO) .
+ @$(ECHO) .
+ vi -q -k ":1,$$s/PNG_API_RULE 0$$/PNG_API_RULE 2/\n:w! $@\n:q!\n" ..\..\scripts\pnglibconf.h.prebuilt
+ @$(ECHO) .
+ @$(ECHO) .
+ @$(ECHO) YOU HAVE A DEFAULT CONFIGURATION BECAUSE YOU DO NOT HAVE AWK!
+ @$(ECHO) .
+ @$(ECHO) .
+ @type << >pngconfig.inf
+This is the default configuration of libpng.lib, if you wish to
+change the configuration please consult the instructions in
+projects/owatcom/pngconfig.dfa.
+<<
+
+!endif
+
+# Make the default files
+defaults: .symbolic
+ @$(COPY) << config.inf
+$# The libpng project is incompletely configured.  To complete configuration
+$# please complete the following steps:
+$#
+$#   1) Edit the 'before' rule of libpng.wpj (from the IDE) to define the
+$#      locations of the zlib include file zlib.h and the built zlib library,
+$#      zlib.lib.
+$#
+$#   2) If you want to change libpng to a non-standard configuration also
+$#      change the definition of 'awk' in the before rule to the name of your
+$#      awk command.  For more instructions on configuration read
+$#      pngconfig.dfa.
+$#
+$#   3) Delete this file (config.inf).
+<<
+ @$(COPY) << pngconfig.dfa
+$# pngconfig.dfa: this file contains configuration options for libpng.
+$# If emtpy the standard configuration will be built.  For this file to be
+$# used a working version of the program 'awk' is required and the program
+$# must be identified in the 'before' rule of the project.
+$#
+$# If you don't already have 'awk', or the version of awk you have seems not
+$# to work, download Brian Kernighan's awk (Brian Kernighan is the author of
+$# awk.)  You can find source code and a built executable (called awk95.exe)
+$# here:
+$#
+$#     http://www.cs.princeton.edu/~bwk/btl.mirror/
+$#
+$# The executable works just fine.
+$#
+$# If build issues errors after a change to pngconfig.dfa you have entered
+$# inconsistent feature requests, or even malformed requests, in
+$# pngconfig.dfa.  The error messages from awk should be comprehensible, but
+$# if not simply go back to the start (nothing but comments in this file) and
+$# enter configuration lines one by one until one produces an error.  (Or, of
+$# course, do the standard binary chop.)
+$#
+$# You need to rebuild everything after a change to pnglibconf.dfa - i.e. you
+$# must do Actions/Mark All Targets for Remake.  This is because the compiler
+$# generated dependency information (as of OpenWatcom 1.9) does not record the
+$# dependency on pnglibconf.h correctly.
+$#
+$# If awk isn't set then this file is bypassed.  If you just want the standard
+$# configuration it is automatically produced from the distributed version
+$# (scripts\pnglibconf.h.prebuilt) by editting PNG_API_RULE to 2 (to force use
+$# of the OpenWatcom library calling convention.)
+$#
+<<
+
+clean:: .symbolic
+ $(DELETE) ..\..\pnglibconf.h pnglibconf.* dfn.c *.out pngconfig.inf
+ $(DELETE) *.obj *.mbr *.sym *.err *.pch libpng.mk
+ $(DELETE) libpng.lib libpng.lbr libpng.lb1 libpng.cbr libpng.mk1
+ $(DELETE) pngtest.exe pngtest.map pngtest.lk1 pngtest.mk1
+ $(DELETE) pngvalid.exe pngvalid.map pngvalid.lk1 pngvalid.mk1
+
+distclean:: clean .symbolic
+ $(DELETE) zlib.inf awk.inf config.inf pngconfig.dfa
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--- a/projects/vstudio/WARNING
+++ b/projects/vstudio/WARNING
@@ -0,0 +1,23 @@
+WARNING
+=======
+Libpng 1.5 erroneously uses /MD when building debug DLL versions of libpng.
+It should use /MDd - you can change this under properties\C/C++\Code
+Generation\Runtime Library if you need to use the debug runtime for debug
+builds.  This will be changed in libpng 1.6 but is currently retained for
+compatibility with older libpng 1.5 releases.
+
+The runtime library settings for each build are as follows:
+
+           Release        Debug
+DLL         /MD            /MD
+Library     /MT            /MTd
+
+The Visual Studio 2010 defaults for a Win32 DLL or Static Library project are
+as follows:
+
+                 Release     Debug
+DLL               /MD         /MDd
+Static Library    /MD         /MDd
+
+Notice that by default static library builds use the DLL runtime, not the
+static library runtime.
--- a/projects/vstudio/libpng/libpng.vcxproj
+++ b/projects/vstudio/libpng/libpng.vcxproj
@@ -23,8 +23,8 @@
    <Keyword>Win32Proj</Keyword>
    <RootNamespace>libpng</RootNamespace>
  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <Import Project="$(SolutionDir)\zlib.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
    <ConfigurationType>DynamicLibrary</ConfigurationType>
    <CharacterSet>MultiByte</CharacterSet>
--- a/projects/vstudio/pnglibconf/pnglibconf.vcxproj
+++ b/projects/vstudio/pnglibconf/pnglibconf.vcxproj
@@ -17,6 +17,7 @@
    <WholeProgramOptimization>true</WholeProgramOptimization>
    <CharacterSet>MultiByte</CharacterSet>
  </PropertyGroup>
+  <Import Project="$(SolutionDir)\zlib.props" />
  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
  <ImportGroup Label="ExtensionSettings">
  </ImportGroup>
--- a/projects/vstudio/pngstest/pngstest.vcxproj
+++ b/projects/vstudio/pngstest/pngstest.vcxproj
@@ -1,218 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug Library|Win32">
-      <Configuration>Debug Library</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release Library|Win32">
-      <Configuration>Release Library</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{9B36B6FE-7FC0-434F-A71F-BBEF8099F1D8}</ProjectGuid>
-    <Keyword>Win32Proj</Keyword>
-    <RootNamespace>pngstest</RootNamespace>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <Import Project="$(SolutionDir)\zlib.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <LinkIncremental>false</LinkIncremental>
-    <CustomBuildAfterTargets />
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
-    <LinkIncremental>false</LinkIncremental>
-    <CustomBuildAfterTargets />
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <LinkIncremental>false</LinkIncremental>
-    <CustomBuildAfterTargets />
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
-    <LinkIncremental>false</LinkIncremental>
-    <CustomBuildAfterTargets />
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
-      <WarningLevel>Level4</WarningLevel>
-      <MinimalRebuild>false</MinimalRebuild>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <Optimization>Disabled</Optimization>
-      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;PNG_USE_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
-      <CompileAsManaged>false</CompileAsManaged>
-      <TreatWarningAsError>true</TreatWarningAsError>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <StringPooling>true</StringPooling>
-      <FunctionLevelLinking>false</FunctionLevelLinking>
-      <BrowseInformation>true</BrowseInformation>
-      <FloatingPointExceptions>false</FloatingPointExceptions>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>libpng15.lib;zlib.lib</AdditionalDependencies>
-      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
-    </Link>
-    <CustomBuildStep>
-      <Message>Executing libpng simplified API test program</Message>
-      <Command>"$(OutDir)pngstest.exe" --log --touch "$(IntDir)pngstest.out" ../../../contrib/pngsuite/basn0g01.png ../../../contrib/pngsuite/basn0g02.png ../../../contrib/pngsuite/basn0g04.png ../../../contrib/pngsuite/basn0g08.png ../../../contrib/pngsuite/basn0g16.png ../../../contrib/pngsuite/basn2c08.png ../../../contrib/pngsuite/basn2c16.png ../../../contrib/pngsuite/basn3p01.png ../../../contrib/pngsuite/basn3p02.png ../../../contrib/pngsuite/basn3p04.png ../../../contrib/pngsuite/basn3p08.png ../../../contrib/pngsuite/basn4a08.png ../../../contrib/pngsuite/basn4a16.png ../../../contrib/pngsuite/basn6a08.png ../../../contrib/pngsuite/basn6a16.png ../../../contrib/pngsuite/ftbbn1g04.png ../../../contrib/pngsuite/ftbbn2c16.png ../../../contrib/pngsuite/ftbbn3p08.png ../../../contrib/pngsuite/ftbgn2c16.png ../../../contrib/pngsuite/ftbgn3p08.png ../../../contrib/pngsuite/ftbrn2c08.png ../../../contrib/pngsuite/ftbwn1g16.png ../../../contrib/pngsuite/ftbwn3p08.png ../../../contrib/pngsuite/ftbyn3p08.png ../../../contrib/pngsuite/ftp0n1g08.png ../../../contrib/pngsuite/ftp0n2c08.png ../../../contrib/pngsuite/ftp0n3p08.png ../../../contrib/pngsuite/ftp1n3p08.png</Command>
-      <Outputs>$(IntDir)pngstest.out</Outputs>
-      <Inputs>$(OutDir)pngstest.exe</Inputs>
-    </CustomBuildStep>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
-    <ClCompile>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
-      <WarningLevel>Level4</WarningLevel>
-      <MinimalRebuild>false</MinimalRebuild>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <Optimization>Disabled</Optimization>
-      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
-      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
-      <CompileAsManaged>false</CompileAsManaged>
-      <TreatWarningAsError>true</TreatWarningAsError>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <StringPooling>true</StringPooling>
-      <FunctionLevelLinking>false</FunctionLevelLinking>
-      <BrowseInformation>true</BrowseInformation>
-      <FloatingPointExceptions>false</FloatingPointExceptions>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>libpng15.lib;zlib.lib</AdditionalDependencies>
-      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
-    </Link>
-    <CustomBuildStep>
-      <Message>Executing libpng simplified API test program</Message>
-      <Command>"$(OutDir)pngstest.exe" --log --touch "$(IntDir)pngstest.out" ../../../contrib/pngsuite/basn0g01.png ../../../contrib/pngsuite/basn0g02.png ../../../contrib/pngsuite/basn0g04.png ../../../contrib/pngsuite/basn0g08.png ../../../contrib/pngsuite/basn0g16.png ../../../contrib/pngsuite/basn2c08.png ../../../contrib/pngsuite/basn2c16.png ../../../contrib/pngsuite/basn3p01.png ../../../contrib/pngsuite/basn3p02.png ../../../contrib/pngsuite/basn3p04.png ../../../contrib/pngsuite/basn3p08.png ../../../contrib/pngsuite/basn4a08.png ../../../contrib/pngsuite/basn4a16.png ../../../contrib/pngsuite/basn6a08.png ../../../contrib/pngsuite/basn6a16.png ../../../contrib/pngsuite/ftbbn1g04.png ../../../contrib/pngsuite/ftbbn2c16.png ../../../contrib/pngsuite/ftbbn3p08.png ../../../contrib/pngsuite/ftbgn2c16.png ../../../contrib/pngsuite/ftbgn3p08.png ../../../contrib/pngsuite/ftbrn2c08.png ../../../contrib/pngsuite/ftbwn1g16.png ../../../contrib/pngsuite/ftbwn3p08.png ../../../contrib/pngsuite/ftbyn3p08.png ../../../contrib/pngsuite/ftp0n1g08.png ../../../contrib/pngsuite/ftp0n2c08.png ../../../contrib/pngsuite/ftp0n3p08.png ../../../contrib/pngsuite/ftp1n3p08.png</Command>
-      <Outputs>$(IntDir)pngstest.out</Outputs>
-      <Inputs>$(OutDir)pngstest.exe</Inputs>
-    </CustomBuildStep>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <ClCompile>
-      <WarningLevel>Level4</WarningLevel>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <Optimization>Full</Optimization>
-      <FunctionLevelLinking>false</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;PNG_USE_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
-      <CompileAsManaged>false</CompileAsManaged>
-      <TreatWarningAsError>true</TreatWarningAsError>
-      <StringPooling>true</StringPooling>
-      <MinimalRebuild>false</MinimalRebuild>
-      <BrowseInformation>true</BrowseInformation>
-      <WholeProgramOptimization>true</WholeProgramOptimization>
-      <FloatingPointExceptions>false</FloatingPointExceptions>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>libpng15.lib;zlib.lib</AdditionalDependencies>
-      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
-      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
-    </Link>
-    <CustomBuildStep>
-      <Message>Executing libpng simplified API test program</Message>
-      <Command>"$(OutDir)pngstest.exe" --log --touch "$(IntDir)pngstest.out" ../../../contrib/pngsuite/basn0g01.png ../../../contrib/pngsuite/basn0g02.png ../../../contrib/pngsuite/basn0g04.png ../../../contrib/pngsuite/basn0g08.png ../../../contrib/pngsuite/basn0g16.png ../../../contrib/pngsuite/basn2c08.png ../../../contrib/pngsuite/basn2c16.png ../../../contrib/pngsuite/basn3p01.png ../../../contrib/pngsuite/basn3p02.png ../../../contrib/pngsuite/basn3p04.png ../../../contrib/pngsuite/basn3p08.png ../../../contrib/pngsuite/basn4a08.png ../../../contrib/pngsuite/basn4a16.png ../../../contrib/pngsuite/basn6a08.png ../../../contrib/pngsuite/basn6a16.png ../../../contrib/pngsuite/ftbbn1g04.png ../../../contrib/pngsuite/ftbbn2c16.png ../../../contrib/pngsuite/ftbbn3p08.png ../../../contrib/pngsuite/ftbgn2c16.png ../../../contrib/pngsuite/ftbgn3p08.png ../../../contrib/pngsuite/ftbrn2c08.png ../../../contrib/pngsuite/ftbwn1g16.png ../../../contrib/pngsuite/ftbwn3p08.png ../../../contrib/pngsuite/ftbyn3p08.png ../../../contrib/pngsuite/ftp0n1g08.png ../../../contrib/pngsuite/ftp0n2c08.png ../../../contrib/pngsuite/ftp0n3p08.png ../../../contrib/pngsuite/ftp1n3p08.png</Command>
-      <Outputs>$(IntDir)pngstest.out</Outputs>
-      <Inputs>$(OutDir)pngstest.exe</Inputs>
-    </CustomBuildStep>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
-    <ClCompile>
-      <WarningLevel>Level4</WarningLevel>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <Optimization>Full</Optimization>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>false</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
-      <CompileAsManaged>false</CompileAsManaged>
-      <TreatWarningAsError>true</TreatWarningAsError>
-      <StringPooling>true</StringPooling>
-      <MinimalRebuild>false</MinimalRebuild>
-      <BrowseInformation>true</BrowseInformation>
-      <WholeProgramOptimization>true</WholeProgramOptimization>
-      <FloatingPointExceptions>false</FloatingPointExceptions>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>libpng15.lib;zlib.lib</AdditionalDependencies>
-      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
-      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
-    </Link>
-    <CustomBuildStep>
-      <Message>Executing libpng simplified API test program</Message>
-      <Command>"$(OutDir)pngstest.exe" --log --touch "$(IntDir)pngstest.out" ../../../contrib/pngsuite/basn0g01.png ../../../contrib/pngsuite/basn0g02.png ../../../contrib/pngsuite/basn0g04.png ../../../contrib/pngsuite/basn0g08.png ../../../contrib/pngsuite/basn0g16.png ../../../contrib/pngsuite/basn2c08.png ../../../contrib/pngsuite/basn2c16.png ../../../contrib/pngsuite/basn3p01.png ../../../contrib/pngsuite/basn3p02.png ../../../contrib/pngsuite/basn3p04.png ../../../contrib/pngsuite/basn3p08.png ../../../contrib/pngsuite/basn4a08.png ../../../contrib/pngsuite/basn4a16.png ../../../contrib/pngsuite/basn6a08.png ../../../contrib/pngsuite/basn6a16.png ../../../contrib/pngsuite/ftbbn1g04.png ../../../contrib/pngsuite/ftbbn2c16.png ../../../contrib/pngsuite/ftbbn3p08.png ../../../contrib/pngsuite/ftbgn2c16.png ../../../contrib/pngsuite/ftbgn3p08.png ../../../contrib/pngsuite/ftbrn2c08.png ../../../contrib/pngsuite/ftbwn1g16.png ../../../contrib/pngsuite/ftbwn3p08.png ../../../contrib/pngsuite/ftbyn3p08.png ../../../contrib/pngsuite/ftp0n1g08.png ../../../contrib/pngsuite/ftp0n2c08.png ../../../contrib/pngsuite/ftp0n3p08.png ../../../contrib/pngsuite/ftp1n3p08.png</Command>
-      <Outputs>$(IntDir)pngstest.out</Outputs>
-      <Inputs>$(OutDir)pngstest.exe</Inputs>
-    </CustomBuildStep>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClCompile Include="..\..\..\contrib\libtests\pngstest.c" />
-  </ItemGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>
--- a/projects/vstudio/pngtest/pngtest.vcxproj
+++ b/projects/vstudio/pngtest/pngtest.vcxproj
@@ -23,8 +23,8 @@
    <Keyword>Win32Proj</Keyword>
    <RootNamespace>pngtest</RootNamespace>
  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <Import Project="$(SolutionDir)\zlib.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <CharacterSet>Unicode</CharacterSet>
--- a/projects/vstudio/pngvalid/pngvalid.vcxproj
+++ b/projects/vstudio/pngvalid/pngvalid.vcxproj
@@ -23,8 +23,8 @@
    <Keyword>Win32Proj</Keyword>
    <RootNamespace>pngvalid</RootNamespace>
  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <Import Project="$(SolutionDir)\zlib.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <CharacterSet>Unicode</CharacterSet>
@@ -210,7 +210,7 @@
    </CustomBuildStep>
  </ItemDefinitionGroup>
  <ItemGroup>
-    <ClCompile Include="..\..\..\pngvalid.c" />
+    <ClCompile Include="..\..\..\contrib\libtests\pngvalid.c" />
  </ItemGroup>
  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
  <ImportGroup Label="ExtensionTargets">
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@

 VisualStudio instructions

-libpng version 1.5.7beta05 - November 18, 2011
+libpng version 1.5.14beta08 - January 10, 2013

 Copyright (c) 1998-2010 Glenn Randers-Pehrson

@@ -13,6 +13,14 @@ This directory  contains support for building libpng under MicroSoft
 VisualStudio 2010.  It may also work under later versions of VisualStudio.
 You should be familiar with VisualStudio before using this directory.

+WARNING
+=======
+Libpng 1.5 erroneously uses /MD when building debug DLL versions of libpng.
+It should use /MDd - you can change this under properties\C/C++\Code
+Generation\Runtime Library if you need to use the debug runtime for debug
+builds.  This will be changed in libpng 1.6 but is currently retained for
+compatibility with older libpng 1.5 releases.
+
 Initial preparations
 ====================
 You must enter some information in zlib.props before attempting to build
--- a/projects/vstudio/vstudio.sln
+++ b/projects/vstudio/vstudio.sln
@@ -24,13 +24,6 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngvalid", "pngvalid\pngval
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pnglibconf", "pnglibconf\pnglibconf.vcxproj", "{EB33566E-DA7F-4D28-9077-88C0B7C77E35}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngstest", "pngstest\pngstest.vcxproj", "{277AC57F-313B-4D06-B119-A3CDB672D2FF}"
-	ProjectSection(ProjectDependencies) = postProject
-		{60F89955-91C6-3A36-8000-13C592FEC2DF} = {60F89955-91C6-3A36-8000-13C592FEC2DF}
-		{EB33566E-DA7F-4D28-9077-88C0B7C77E35} = {EB33566E-DA7F-4D28-9077-88C0B7C77E35}
-		{D6973076-9317-4EF2-A0B8-B7A18AC0713E} = {D6973076-9317-4EF2-A0B8-B7A18AC0713E}
-	EndProjectSection
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug Library|Win32 = Debug Library|Win32
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
 * zlib.props - location of zlib source
 *
- * libpng version 1.5.7beta05 - November 18, 2011
+ * libpng version 1.5.14beta08 - January 10, 2013
 *
 * Copyright (c) 1998-2011 Glenn Randers-Pehrson
 *
@@ -33,5 +33,13 @@
 	 below:
     -->
    <ZLibSrcDir>..\..\..\..\zlib-1.2.5</ZLibSrcDir>
+
+    <!-- The following line allows compilation for an ARM target with Visual
+         Studio 2012.  Notice that this is not supported by the Visual Studio
+         2012 IDE and that the programs that result cannot be run unless they
+         signed by Microsoft.  This is therefore untested; only Microsoft can
+         test it:
+     -->
+    <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
  </PropertyGroup>
 </Project>
--- a/projects/vstudio/zlib/zlib.vcxproj
+++ b/projects/vstudio/zlib/zlib.vcxproj
@@ -34,8 +34,8 @@
  <PropertyGroup Label="Globals">
    <Keyword>Win32Proj</Keyword>
  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <Import Project="$(SolutionDir)\zlib.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="Configuration">
    <ConfigurationType>StaticLibrary</ConfigurationType>
  </PropertyGroup>
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,9 +1,9 @@

-Makefiles for  libpng version 1.5.7beta05 - November 18, 2011
+Makefiles for  libpng version 1.5.14beta08 - January 10, 2013

 pnglibconf.h.prebuilt       =>  Stores configuration settings
 makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng15.so.15.1.5.7beta05)
+                       (gcc, creates libpng15.so.15.1.5.14beta08)
 makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
 makefile.knr      =>  Archaic UNIX Makefile that converts files with
                       ansi2knr (Requires ansi2knr.c from
@@ -15,12 +15,13 @@ pnglibconf.h.prebuilt       =>  Stores configuration settings
 makefile.bc32     =>  32-bit Borland C++ (all modules compiled in C mode)
 makefile.beos     =>  beos makefile
 makefile.bor      =>  Borland makefile (uses bcc)
- makefile.cegcc    =>  minge32ce for Windows CE makefile
+ makefile.cegcc    =>  minge32ce for Windows CE makefile (only included in the
+                       tar distributions, because it depends on "configure")
 makefile.darwin   =>  Darwin makefile, can use on MacosX
 makefile.dec      =>  DEC Alpha UNIX makefile
 makefile.dj2      =>  DJGPP 2 makefile
 makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       (gcc, creates libpng15.so.15.1.5.7beta05)
+                       (gcc, creates libpng15.so.15.1.5.14beta08)
 makefile.freebsd  =>  FreeBSD makefile
 makefile.gcc      =>  Generic gcc makefile
 makefile.hpgcc    =>  HPUX makefile using gcc
@@ -35,12 +36,12 @@ pnglibconf.h.prebuilt       =>  Stores configuration settings
 makefile.os2      =>  OS/2 Makefile (gcc and emx, requires libpng.def)
 makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
 makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng15.so.15.1.5.7beta05)
+                       creates libpng15.so.15.1.5.14beta08)
 makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
 makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng15.so.15.1.5.7beta05)
+                       creates libpng15.so.15.1.5.14beta08)
 makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng15.so.15.1.5.7beta05)
+                       creates libpng15.so.15.1.5.14beta08)
 makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
 makefile.sunos    =>  Sun makefile
 makefile.32sunu   =>  Sun Ultra 32-bit makefile
@@ -57,7 +58,7 @@ Other supporting scripts:
 libpng-config-body.in => used by several makefiles to create libpng-config
 libpng-config-head.in => used by several makefiles to create libpng-config
 libpng.pc.in      =>  Used by several makefiles to create libpng.pc
- pngwin.rc         =>  Used by the visualc71 project.
+ pngwin.rc         =>  Used by the visualc71 and vstudio projects.
 pngwin.def        =>  Used by makefile.os2
 pngwin.dfn        =>  Used to maintain pngwin.def
 SCOPTIONS.ppc     =>  Used with smakefile.ppc
--- a/scripts/def.dfn
+++ b/scripts/def.dfn
@@ -1,6 +1,6 @@
 /* def.dfn - define format of libpng.def
 *
- * Last changed in libpng version 1.5.0 [(PENDING RELEASE)]
+ * Last changed in libpng version 1.5.7 [December 15, 2011]
 * Copyright (c) 2010-2011 Glenn Randers-Pehrson
 *
 * This code is released under the libpng license.
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@

 # Modeled after libxml-config.

-version=1.5.7beta05
+version=1.5.14beta08
 prefix=""
 libdir=""
 libs=""
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@ includedir=@includedir@/libpng15

 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.5.7beta05
+Version: 1.5.14beta08
 Libs: -L${libdir} -lpng15
 Cflags: -I${includedir}
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,7 +23,7 @@

 VERMAJ = 1
 VERMIN = 5
-VERMIC = 7
+VERMIC = 14
 VER = $(VERMAJ).$(VERMIN).$(VERMIC)
 NAME = libpng
 PACKAGE = $(NAME)-$(VER)
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -15,10 +15,8 @@ prefix=/usr/local
 exec_prefix=$(prefix)

 # Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
+ZLIBLIB=/usr/lib
+ZLIBINC=/usr/include

 # Library name:
 LIBNAME = libpng15
@@ -37,7 +35,7 @@ MKDIR_P=mkdir -p
 LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f
-ARCH="-arch i386 -arch x86_64"
+ARCH=-arch ppc -arch i386 -arch x86_64

 # CFLAGS=-I$(ZLIBINC) -W -Wall -O3 -funroll-loops
 CFLAGS=-I$(ZLIBINC) -W -Wall -O -funroll-loops $(ARCH)
@@ -107,7 +105,7 @@ $(LIBSOMAJ): $(OBJSDLL)
 	$(CC) -dynamiclib \
 	 -install_name $(LIBPATH)/$(LIBSOMAJ) \
 	 -current_version 15 -compatibility_version 15 \
-	 -o $(LIBSOMAJ) \
+ 	 $(ARCH) -o $(LIBSOMAJ) \
 	 $(OBJSDLL) -L$(ZLIBLIB) -lz

 pngtest: pngtest.o $(LIBSO)
@@ -136,10 +134,10 @@ install-static: install-headers libpng.a
 install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
 	-@$(RM_F) $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOREL)
+	-@$(RM_F) $(DL)/$(LIBSOMAJ)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
-	chmod 755 $(DL)/$(LIBSOREL)
+	cp $(LIBSOMAJ) $(DL)
+	chmod 755 $(DL)/$(LIBSOMAJ)
 	(cd $(DL); \
 	$(LN_SF) $(LIBSOREL) $(LIBSO); \
 	$(LN_SF) $(LIBSO) $(OLDSO))
--- a/scripts/makefile.freebsd
+++ b/scripts/makefile.freebsd
@@ -11,8 +11,8 @@ SHLIB_VER?=     15
 LIB=		png
 SHLIB_MAJOR=	${SHLIB_VER}
 SHLIB_MINOR=	0
-NOPROFILE=	YES
-NOOBJ=          YES
+NO_PROFILE=	YES
+NO_OBJ=          YES

 # where make install puts libpng.a and png.h
 DESTDIR=	${PREFIX}
@@ -25,7 +25,10 @@ MANDIR=		/man/man
 SYMLINKS=       libpng/png.h ${INCSDIR}/../png.h \
 		libpng/pngconf.h ${INCSDIR}/../pngconf.h \
 		libpng/pnglibconf.h ${INCSDIR}/../pnglibconf.h
+
 LDADD+=         -lm -lz
+#LDADD+=         -lm -lz -lssp_nonshared   # for OSVERSION >= 800000 ?
+
 DPADD+=         ${LIBM} ${LIBZ}

 CFLAGS+= -I.
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng15
 PNGMAJ = 15
-RELEASE = 7
+RELEASE = 14

 # Shared library names:
 LIBSO=$(LIBNAME).so
@@ -236,4 +236,4 @@ pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pn
 pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
 pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

-pngtest.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h pnglibconf.h
--- a/scripts/makefile.msys
+++ b/scripts/makefile.msys
@@ -0,0 +1,204 @@
+# makefile for libpng using MSYS/gcc (shared, static library)
+# Copyright (C) 2012 Glenn Randers-Pehrson and Christopher M. Wheeler
+#
+# Portions taken from makefile.linux:
+# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2011 Greg Roelofs and
+# Glenn Randers-Pehrson
+# Copyright (C) 2000 Cosmin Truta
+# Copyright (C) 1996, 1997 Andreas Dilger
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+#
+# This code is released under the libpng license.
+# For conditions of distribution and use, see the disclaimer
+# and license in png.h
+# # # # # # # # # # # # # # # # #
+prefix=/usr/local
+exec_prefix=$(prefix)
+
+# Library name:
+LIBNAME = libpng15
+PNGMAJ = 15
+RELEASE = 14
+
+# Shared library names:
+LIBSO=$(LIBNAME).dll
+LIBSOMAJ=$(LIBNAME).dll.$(PNGMAJ)
+LIBSOREL=$(PNGMAJ).$(RELEASE)
+OLDSO=libpng.dll
+
+# Where the zlib library and include files are located.
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+ZLIBLIB=/usr/local/lib
+ZLIBINC=/usr/local/include
+
+# Compiler, linker, lib and other tools
+CC = gcc
+LD = $(CC)
+AR_RC = ar rcs
+RANLIB = ranlib
+RM_F = rm -rf
+MKDIR_P=mkdir -p
+LN_SF=ln -sf
+
+#ARCH = -march=pentium3
+#ARCH = -march=i686
+ARCH = 
+CDEBUG = -g -DPNG_DEBUG=5
+LDDEBUG =
+CRELEASE = -O2
+LDRELEASE = -s
+#CFLAGS = -W -Wall $(CDEBUG)
+CFLAGS = -W -Wall $(CRELEASE) $(ARCH)
+#LDFLAGS = $(LDDEBUG)
+LDFLAGS = $(LDRELEASE)
+LIBS = -lz -lm
+
+# File extensions
+O=.o
+A=.a
+EXE=.exe
+
+INCPATH=$(prefix)/include
+LIBPATH=$(exec_prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(exec_prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location.  Example:
+#
+#    make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+# Variables
+OBJS =  png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
+	pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
+	pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+
+# Targets
+all: static shared
+
+# see scripts/pnglibconf.mak for more options
+pnglibconf.h: scripts/pnglibconf.h.prebuilt
+	cp scripts/pnglibconf.h.prebuilt $@
+
+.c$(O):
+	$(CC) -c $(CFLAGS) -I$(ZLIBINC) $<
+
+static: libpng$(A) pngtest$(EXE)
+
+shared: $(LIBSOMAJ)
+	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSO)
+
+$(LIBSO): $(LIBSOMAJ)
+	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
+
+$(LIBSOMAJ):
+	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ)
+
+libpng$(A): $(OBJS)
+	$(AR_RC) $@ $(OBJS)
+	$(RANLIB) $@
+
+install-headers: png.h pngconf.h pnglibconf.h
+	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
+	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
+	cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
+	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
+	-@$(RM_F) $(DI)/libpng
+	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
+	cp libpng.a $(DL)/$(LIBNAME).a
+	-@$(RM_F) $(DL)/libpng.a
+	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
+
+libpng.pc:
+	cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
+	-e s!@exec_prefix@!$(exec_prefix)! \
+	-e s!@libdir@!$(LIBPATH)! \
+	-e s!@includedir@!$(INCPATH)! \
+	-e s!-lpng15!-lpng15\ -lz\ -lm! > libpng.pc
+
+libpng-config:
+	( cat scripts/libpng-config-head.in; \
+	echo prefix=\"$(prefix)\"; \
+	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
+	echo L_opts=\"-L$(LIBPATH)\"; \
+	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
+	echo libs=\"-lpng15 -lz -lm\"; \
+	cat scripts/libpng-config-body.in ) > libpng-config
+
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
+	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	cp $(LIBSO) $(DL)/$(LIBSOREL)
+	(cd $(DL); \
+	$(LN_SF) $(LIBSOREL) $(LIBSO); \
+	$(LN_SF) $(LIBSO) $(OLDSO))
+
+	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
+	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
+	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
+	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
+	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
+	-@$(RM_F) $(DM)/man3/libpng.3
+	-@$(RM_F) $(DM)/man3/libpngpf.3
+	cp libpng.3 $(DM)/man3
+	cp libpngpf.3 $(DM)/man3
+	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
+	-@$(RM_F) $(DM)/man5/png.5
+	cp png.5 $(DM)/man5
+
+install-config: libpng-config
+	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
+	-@$(RM_F) $(DB)/libpng-config
+	-@$(RM_F) $(DB)/$(LIBNAME)-config
+	cp libpng-config $(DB)/$(LIBNAME)-config
+	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+test: pngtest$(EXE)
+	./pngtest$(EXE)
+
+pngtest$(EXE): pngtest$(O) libpng$(A)
+	$(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest$(O) libpng$(A) $(LIBS)
+
+clean:
+	$(RM_F) *$(O) libpng$(A) pngtest$(EXE) pngout.png pnglibconf.h $(LIBSO) \
+	$(LIBSOMAJ) libpng-config
+
+png$(O):      png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget$(O):   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem$(O):   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread$(O):  png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio$(O):   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset$(O):   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio$(O):   png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+
+pngtest$(O):  png.h pngconf.h pnglibconf.h
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng15

 LIB=	png15
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.5.7beta05
+SHLIB_MINOR=	1.5.14beta08
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include

 LIB=	png
 SHLIB_MAJOR=	15
-SHLIB_MINOR=	1.5.7beta05
+SHLIB_MINOR=	1.5.14beta08
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -11,7 +11,7 @@ LIBDIR=	${PREFIX}/lib
 MANDIR= ${PREFIX}/man/cat

 SHLIB_MAJOR=	15
-SHLIB_MINOR=	1.5.7beta05
+SHLIB_MINOR=	1.5.14beta08

 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
--- a/scripts/options.awk
+++ b/scripts/options.awk
@@ -1,7 +1,7 @@
 #!/bin/awk -f
 # scripts/options.awk - library build configuration control
 #
-# last changed in libpng version 1.5.7 - (PENDING RELEASE)
+# last changed in libpng version 1.5.7 - December 15, 2011
 #
 # Copyright (c) 1998-2011 Glenn Randers-Pehrson
 #
@@ -42,7 +42,7 @@ BEGIN{
   comment=start cx             # Comment start
   cend="*/" end                # Comment end
   def=start "#define PNG_" ct  # Arbitrary define
-   sup=ct "_SUPPORTED" end      # end supported option
+   sup=ct "_SUPPORTED 1" end    # end supported option
   und=comment "#undef PNG_" ct # Unsupported option
   une=ct "_SUPPORTED" cend     # end unsupported option
   error=start "ERROR:"         # error message
@@ -102,6 +102,7 @@ pre && version == "search" && version_file != FILENAME{

 pre && version == "search" && $0 ~ /^ \* libpng version/{
   version = substr($0, 4)
+   gsub(/\./, " PNG_JOIN . PNG_JOIN", version)
   print "version =", version >out
   next
 }
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -21,13 +21,13 @@ file pnglibconf.h scripts/pnglibconf.dfa PNGLCONF_H
 # C compiler to generate 'pnglibconf.h' - a list of all the
 # configuration options.  The file lists the various options
 # that can *only* be specified during the libpng build;
-# pnglibconf.h freezes the definitons selected for the specific
+# pnglibconf.h freezes the definitions selected for the specific
 # build.
 #
 # The syntax is detailed in scripts/options.awk, this is a summary
 # only:
 #
-# setting <name> [requires ...] [default]
+# setting <name> [default]
 #    #define PNG_<name> <value>  /* value comes from current setting */
 # option <name> [requires ...] [if ...] [enables ...] [disabled]
 #    #define PNG_<name>_SUPPORTED if the requirements are met and
@@ -266,20 +266,22 @@ option SET_USER_LIMITS enables SET_CHUNK_CACHE_LIMIT

 option SET_USER_LIMITS enables SET_CHUNK_MALLOC_LIMIT

-# Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGs no matter
-# how large, set these two limits to 0x7fffffff
+# Libpng limits.
+#
+# If these settings are *not* set libpng will not limit the size of
+# images or the size of data in ancilliary chunks.  This does lead to
+# security issues if PNG files come from untrusted sources.
+setting USER_WIDTH_MAX
+setting USER_HEIGHT_MAX
+setting USER_CHUNK_CACHE_MAX
+setting USER_CHUNK_MALLOC_MAX

-setting USER_WIDTH_MAX default 1000000
-setting USER_HEIGHT_MAX default 1000000
-
-# Added at libpng-1.2.43.  To accept all valid PNGs no matter
-# how large, set these two limits to 0.
-
-setting USER_CHUNK_CACHE_MAX default 0
-
-# Added at libpng-1.2.43
-
-setting USER_CHUNK_MALLOC_MAX default 0
+# To default all these settings to values that are large but probably
+# safe turn the SAFE_LIMITS option on; this will cause the value in
+# pngpriv.h to be used.  Individual values can also be set, simply set
+# them in pngusr.dfa with '@#define PNG_setting value' lines.
+option SAFE_LIMITS enables USER_LIMITS disabled
+= SAFE_LIMITS SAFE_LIMITS

 # All of the following options relate to code capabilities for
 # processing image data before creating a PNG or after reading one.
@@ -296,7 +298,7 @@ option READ enables READ_INTERLACING
 # processing after that has happened.  You need to be sure to enable
 # READ_SCALE_16_TO_8 or READ_STRIP_16_TO_8 when you disable READ_16BIT for
 # this to work properly.  You should disable the other option if you need to
-# ensure a particular convertion (otherwise the app can chose.)
+# ensure a particular conversion (otherwise the app can chose.)

 option READ_16BIT requires READ enables 16BIT

@@ -577,30 +579,12 @@ option WRITE_COMPRESSED_TEXT enables WRITE_TEXT

 option INFO_IMAGE

-# Simplified API options
-# Read:
-option SIMPLIFIED_READ requires SEQUENTIAL_READ READ_TRANSFORMS SETJMP
-option SIMPLIFIED_READ enables READ_EXPAND READ_16BIT READ_EXPAND_16
-option SIMPLIFIED_READ enables READ_SCALE_16_TO_8 READ_RGB_TO_GRAY
-option SIMPLIFIED_READ enables READ_ALPHA_MODE READ_BACKGROUND READ_STRIP_ALPHA
-option SIMPLIFIED_READ enables READ_FILLER READ_SWAP
+# added at libpng-1.5.10
+# Turn this off to disable warning about invalid palette index and
+# leave the num_palette_max member out of the png structure.

-option SIMPLIFIED_READ_AFIRST requires SIMPLIFIED_READ disabled
-option READ_SWAP_ALPHA enables SIMPLIFIED_READ_AFIRST
+option CHECK_FOR_INVALID_INDEX enables READ_CHECK_FOR_INVALID_INDEX
+option CHECK_FOR_INVALID_INDEX enables WRITE_CHECK_FOR_INVALID_INDEX
+option READ_CHECK_FOR_INVALID_INDEX requires READ CHECK_FOR_INVALID_INDEX
+option WRITE_CHECK_FOR_INVALID_INDEX requires WRITE CHECK_FOR_INVALID_INDEX

-option SIMPLIFIED_READ_BGR requires SIMPLIFIED_READ disabled
-option READ_BGR enables SIMPLIFIED_READ_BGR
-
-# Write:
-option SIMPLIFIED_WRITE requires WRITE STDIO SETJMP
-option SIMPLIFIED_WRITE enables WRITE_SWAP WRITE_gAMA WRITE_sRGB WRITE_cHRM
-
-option SIMPLIFIED_WRITE_AFIRST requires SIMPLIFIED_WRITE disabled
-option WRITE_SWAP_ALPHA enables SIMPLIFIED_WRITE_AFIRST
-
-option SIMPLIFIED_WRITE_BGR requires SIMPLIFIED_WRITE disabled
-option WRITE_BGR enables SIMPLIFIED_WRITE_BGR
-
-# Formats:
-option FORMAT_AFIRST if SIMPLIFIED_READ_AFIRST SIMPLIFIED_WRITE_AFIRST
-option FORMAT_BGR if SIMPLIFIED_READ_BGR SIMPLIFIED_WRITE_BGR
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -3,9 +3,9 @@

 /* pnglibconf.h - library build configuration */

-/* Libpng 1.5.7beta05 - November 18, 2011 */
+/* Libpng 1.5.14beta08 - January 10, 2013 */

-/* Copyright (c) 1998-2011 Glenn Randers-Pehrson */
+/* Copyright (c) 1998-2012 Glenn Randers-Pehrson */

 /* This code is released under the libpng license. */
 /* For conditions of distribution and use, see the disclaimer */
@@ -31,10 +31,6 @@
 #define PNG_QUANTIZE_GREEN_BITS 5
 #define PNG_QUANTIZE_RED_BITS 5
 #define PNG_sCAL_PRECISION 5
-#define PNG_USER_CHUNK_CACHE_MAX 0
-#define PNG_USER_CHUNK_MALLOC_MAX 0
-#define PNG_USER_HEIGHT_MAX 1000000
-#define PNG_USER_WIDTH_MAX 1000000
 #define PNG_WEIGHT_SHIFT 8
 #define PNG_ZBUF_SIZE 8192
 /* end of settings */
@@ -45,6 +41,7 @@
 #define PNG_bKGD_SUPPORTED
 #define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
 #define PNG_CHECK_cHRM_SUPPORTED
+#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
 #define PNG_cHRM_SUPPORTED
 #define PNG_CONSOLE_IO_SUPPORTED
 #define PNG_CONVERT_tIME_SUPPORTED
@@ -54,8 +51,6 @@
 #define PNG_FIXED_POINT_SUPPORTED
 #define PNG_FLOATING_ARITHMETIC_SUPPORTED
 #define PNG_FLOATING_POINT_SUPPORTED
-#define PNG_FORMAT_AFIRST_SUPPORTED
-#define PNG_FORMAT_BGR_SUPPORTED
 #define PNG_gAMA_SUPPORTED
 #define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
 #define PNG_hIST_SUPPORTED
@@ -76,6 +71,7 @@
 #define PNG_READ_BACKGROUND_SUPPORTED
 #define PNG_READ_BGR_SUPPORTED
 #define PNG_READ_bKGD_SUPPORTED
+#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
 #define PNG_READ_cHRM_SUPPORTED
 #define PNG_READ_COMPOSITE_NODIV_SUPPORTED
 #define PNG_READ_COMPRESSED_TEXT_SUPPORTED
@@ -128,12 +124,6 @@
 #define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
 #define PNG_SETJMP_SUPPORTED
 #define PNG_SET_USER_LIMITS_SUPPORTED
-#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_READ_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_SUPPORTED
 #define PNG_sPLT_SUPPORTED
 #define PNG_sRGB_SUPPORTED
 #define PNG_STDIO_SUPPORTED
@@ -153,6 +143,7 @@
 #define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
 #define PNG_WRITE_BGR_SUPPORTED
 #define PNG_WRITE_bKGD_SUPPORTED
+#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
 #define PNG_WRITE_cHRM_SUPPORTED
 #define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
 #define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -5,7 +5,7 @@
 LIBRARY

 EXPORTS
-;Version 1.5.7beta05
+;Version 1.5.14beta08
 png_access_version_number @1
 png_set_sig_bytes @2
 png_sig_cmp @3
@@ -239,10 +239,4 @@ EXPORTS
 png_get_cHRM_XYZ_fixed @231
 png_set_cHRM_XYZ @232
 png_set_cHRM_XYZ_fixed @233
- png_image_begin_read_from_file @234
- png_image_begin_read_from_stdio @235
- png_image_begin_read_from_memory @236
- png_image_finish_read @237
- png_image_free @238
- png_image_write_to_file @239
- png_image_write_to_stdio @240
+ png_set_check_for_invalid_index @234
--- a/test-pngstest.sh
+++ b/test-pngstest.sh
@@ -1,22 +0,0 @@
-#!/bin/sh
-#
-# Run the simplified API tests
-err=0
-
-echo >> pngtest-log.txt
-echo "============ pngstest.sh ==============" >> pngtest-log.txt
-
-echo "Running test-pngstest.sh on contrib/pngsuite/*.png"
-for opts in "" "--background"
-do
-   if ./pngstest --log "$@" $opts ${srcdir}/contrib/pngsuite/*.png \
-      >>pngtest-log.txt 2>&1
-   then
-      echo "  PASS: pngstest $opts"
-   else
-      echo "  FAIL: pngstest $opts"
-      err=1
-   fi
-done
-   
-exit $err