[master] Imported from libpng-1.4.3.tar

[master] The "vstudio" project was missing from the .zip and .7z distributions
[master] Added missing quotation marks in the aix block of configure.ac
2025-07-10 18:04:09 +02:00 · 2010-06-25 20:19:59 -05:00 · 2010-05-17 08:31:53 -05:00 · 2010-05-14 15:40:31 -05:00 · 2010-05-14 15:38:51 -05:00 · 2010-05-06 06:48:47 -05:00
110 changed files with 2875 additions and 2510 deletions
--- a/359
+++ b/359
@@ -1,5 +1,5 @@

-Libpng 1.4.0 - January 3, 2010
+Libpng 1.4.3 - June 26, 2010

 This is a public release of libpng, intended for use in production codes.

@@ -8,353 +8,32 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script

-   libpng-1.4.0.tar.xz (LZMA-compressed, recommended)
-   libpng-1.4.0.tar.gz
-   libpng-1.4.0.tar.bz2
+   libpng-1.4.3.tar.xz (LZMA-compressed, recommended)
+   libpng-1.4.3.tar.gz
+   libpng-1.4.3.tar.bz2

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

-   lpng140.zip
-   lpng140.7z
+   lpng143.zip
+   lpng143.7z

 Other information:

-   libpng-1.4.0-README.txt
-   libpng-1.4.0-LICENSE.txt
+   libpng-1.4.3-README.txt
+   libpng-1.4.3-LICENSE.txt

-Changes since the last public release (1.2.10):
+Changes since the last public release (1.4.2):
+  Added missing quotation marks in the aix block of configure.ac
+  The new "vstudio" project was missing from the zip and 7z distributions.
+  Rewrote png_process_IDAT_data to consistently treat extra data as warnings
+    and handle end conditions more cleanly.
+  Removed the now-redundant check for out-of-bounds new_row from example.c
+  Changed char *msg to PNG_CONST char *msg in pngrutil.c
+  Stop memory leak when reading a malformed sCAL chunk.

-version 1.4.0 [January 3, 2010]
-
-  Enabled iTXt support (changes png_struct, thus requires so-number change).
-  Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
-  Eliminated PNG_1_0_X and PNG_1_2_X macros.
-  Removed deprecated functions png_read_init, png_write_init, png_info_init,
-    png_permit_empty_plte, png_set_gray_1_2_4_to_8, and removed the
-    deprecated macro PNG_MAX_UINT.
-  Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
-  Removed all  WIN32_WCE #ifdefs except those involving the
-    time.h "tm" structure (Cosmin)
-  Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
-  Replaced sprintf() with png_sprintf() (Simon-Pierre)
-  Revised makefiles to avoid making links to libpng.so.*
-  Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
-    writing an embedded PNG without the 8-byte signature.
-  Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
-  Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
-  Scripts/libpng.pc.in contained "configure" style version info and would
-    not work with makefiles.
-  Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
-    buffer overflow.
-  Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb))
-  Changed sonum from 0 to 1.
-  Removed unused prototype for png_check_sig() from png.h
-  Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
-  Avoided potential buffer overflow and optimized buffer in
-    png_write_sCAL(), png_write_sCAL_s() (Cosmin).
-  Removed the include directories and libraries from CFLAGS and LDFLAGS
-    in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
-  Exported png_write_sig (Cosmin).
-  Optimized buffer in png_handle_cHRM() (Cosmin).
-  Allow zero-length IDAT chunks after the entire zlib datastream, but not
-    after another intervening chunk type.
-  Set pHYs = 2835 x 2835 pixels per meter, and added
-    pngtest now produces, and made some cosmetic changes to pngtest output.
-    sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin).
-  Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error().
-  Revised INSTALL and autogen.sh
-  Fixed typo in several makefiles (-W1 should be -Wl)
-  Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
-  Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
-    reading out of bounds.
-  Added demonstration of user chunk support in pngtest.c, to support the
-    public sTER chunk and a private vpAg chunk.
-  Removed ordinals from scripts/pngw32.def and removed png_info_int and
-    png_set_gray_1_2_4_to_8 entries.
-  Inline call of png_get_uint_32() in png_get_uint_31().
-  Removed WINCE and Netware projects.
-  Removed standalone Y2KINFO file.
-  Removed AC_FUNC_MALLOC from configure.ac.
-  Added a warning when writing iCCP profile with mismatched profile length.
-  Patched pnggccrd.c to assemble on x86_64 platforms.
-  Moved chunk header reading into a separate function png_read_chunk_header()
-    in pngrutil.c.  The chunk header (len+sig) is now serialized in a single
-    operation (Cosmin).
-  Implemented support for I/O states. Added png_ptr member io_state, and
-    functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
-    (Cosmin).
-  Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin).
-  Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin).
-  Removed the include directories and libraries from CFLAGS and LDFLAGS
-    in scripts/makefile.gcc (Cosmin).
-  Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin).
-  Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin).
-  Added pngintrn.h to the Visual C++ projects (Cosmin).
-  Removed scripts/list (Cosmin).
-  Updated copyright year in scripts/pngwin.def (Cosmin).
-  Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin).
-  Disallowed the user to redefine png_size_t, and enforced a consistent use
-    of png_size_t across libpng (Cosmin).
-  Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends
-    to png_size_t (Cosmin).
-  Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin).
-  Removed some unnecessary type casts (Cosmin).
-  Changed prototype of png_get_compression_buffer_size() and
-    png_set_compression_buffer_size() to work with png_size_t instead of
-    png_uint_32 (Cosmin).
-  Removed png_memcpy_check() and png_memset_check() (Cosmin).
-  Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin).
-  Clarified that png_zalloc() does not clear the allocated memory,
-    and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin).
-  Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in
-    pngconf.h, and used it in all memory allocation functions (Cosmin).
-  Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file
-    mentioning that the symbols declared in that file are private, and
-    updated the scripts and the Visual C++ projects accordingly (Cosmin).
-  Removing trailing '.' from the warning and error messages (Cosmin).
-  Revised many of the makefiles to write their defines in pngdefs.h.
-  Changed "logical" to "bitwise" in the documentation.
-  Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
-  Add a typecast to stifle compiler warning in pngrutil.c
-  Detect and fix attempt to write wrong iCCP profile length.
-  Fix potential buffer overflow in sPLT chunk handler.
-  Fix Makefile.am to not try to link to noexistent files.
-  Check all exported functions for NULL png_ptr.
-  Built Makefile.in with automake-1.9.6 instead of 1.9.2.
-  Add "install: all" in Makefile.am so "configure; make install" will work.
-  Added a typecast in png_zalloc().
-  Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c
-  Add "png_bytep" typecast to profile while calculating length in pngwutil.c
-  Added scripts/CMakeLists.txt
-  Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
-    to eliminate a vulnerability (CVE-2007-2554, CERT VU#684664)
-  Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
-    can be free'ed in case of error.  Revised unknown chunk handling in
-    pngrutil.c and pngpread.c to use this structure.
-  Prefer PNG_USE_PNGVCRD when _MSC_VER is defined in pngconf.h
-  Revised pngvcrd.c for improved efficiency.
-  Moved local array "chunkdata" from pngrutil.c to the png_struct, so
-    it will be freed by png_read_destroy() in case of a read error (Kurt
-    Christensen).
-  Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
-  Change all  "chunkdata" to "png_ptr->chunkdata" in png_decompress_chunk(),
-    and remove "chunkdata" from parameter list.
-  Put a call to png_check_chunk_name() in png_read_chunk_header().
-  Removed two calls to png_check_chunk_name() occuring later in the process.
-  Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
-  Added png_push_have_buffer() function to pngpread.c
-  Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros.
-  Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS.
-  Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code.
-  Synced contrib directory and configure files with libpng-1.2.30beta06.
-  Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta)
-  Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings.
-  Updated contrib/visupng/cexcept.h to version 2.0.1
-  Added PNG_LITERAL_CHARACTER macros for #, [, and ].
-  Moved newline character from individual png_debug messages into the
-    png_debug macros.
-  Allow user to #define their own png_debug, png_debug1, and png_debug2.
-  Added PNG_STRING_NEWLINE macro
-  Added PNG_STRING_COPYRIGHT macro.
-  Added non-ISO versions of png_debug macros.
-  Added PNG_WRITE_FLUSH_SUPPORTED and PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED
-    blocks around new png_flush() call.
-  Revised PNG_NO_STDIO version of png_write_flush()
-  Added png_get|set_chunk_cache_max() to limit the total number of sPLT,
-    text, and unknown chunks that can be stored.
-  Shortened tIME_string to 29 bytes in pngtest.c
-  Revised makefile.darwin to fix shared library numbering.
-  Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8()
-    in example.c (debian bug report)
-  Sync with tEXt vulnerability fix in libpng-1.2.33rc02.
-  Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c,
-    and pngwrite.c
-  Added check for zero-area RGB cHRM triange in png_check_cHRM() and
-    png_check_cHRM_fixed().
-  Revised png_warning() to write its message on standard output by default
-    when warning_fn is NULL.
-  Eliminated png_check_cHRM().  Instead, always use png_check_cHRM_fixed().
-  In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant
-    check for all-zero coordinates that is detected by the triangle check.
-  Rearranged test expressions in png_check_cHRM_fixed() to avoid internal
-    overflows.
-  Added PNG_NO_CHECK_cHRM conditional.
-  Fixed string vs pointer-to-string error in png_check_keyword().
-  Added PNG_NO_CHECK_cHRM conditional.
-  Merge png_debug with version 1.2.34beta04.
-  Removed redundant check for key==NULL before calling png_check_keyword()
-    to ensure that new_key gets initialized and removed extra warning
-    (Merge with version 1.2.34beta05 -- Arvan Pritchard).
-  Added PNG_TRANSFORM_STRIP_FILLER_BEFORE and PNG_TRANSFORM_STRIP_FILLER_AFTER
-    conditionals and deprecated PNG_TRANSFORM_STRIP_FILLER (Jim Barry).
-  Turned off PNG_READ_DITHER_SUPPORTED by default.
-  Combined several instances of png_malloc(); png_memset() into png_calloc().
-  Fixed order of #ifdef directives in the png_debug defines in png.h
-    (bug introduced in libpng-1.2.34).
-  Revised comments in png_set_read_fn() and png_set_write_fn().
-  Use png_calloc() instead of png_malloc() to allocate big_row_buf when
-    reading an interlaced file, to avoid a possible UMR.
-  Revised libpng*.txt and png.h documentation about use of png_write_flush()
-    and png_set_write_fn().
-  Removed fflush() from pngtest.c.
-  Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
-  Removed fflush() from pngtest.c.
-  Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
-  Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
-  Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
-  Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
-    application code writers to bypass the check for multiple inclusion
-    of setjmp.h when they know that it is safe to ignore the situation.
-  Eliminated internal use of setjmp() in pngread.c and pngwrite.c
-  Eliminated deprecated png_read_init_3() and png_write_init_3() functions.
-  Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
-    "shadowed declaration" warning from gcc-4.3.3.
-  Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
-    warning about a global "gamma" variable in math.h on some platforms.
-  Removed pngprefs.h and MMX from makefiles
-  Rebuilt configure scripts with autoconf-2.63 instead of 2.62
-  Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
-  Reformated sources in libpng style (3-space intentation, comment format)
-  Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG)
-  Added sections about the git repository and our coding style to the
-    documentation
-  Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
-  Conditionally compile png_read_finish_row() which is not used by
-    progressive readers.
-  Added contrib/pngminim/preader to demonstrate building minimal progressive
-    decoder, based on contrib/gregbook with embedded libpng and zlib.
-  In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
-    is only one makefile in those directories, and revised the README files
-    accordingly.
-  Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
-    and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
-  Added a section in the documentation about using png_get_io_ptr() in
-    configure scripts to detect the presence of libpng.
-  Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
-    multiple times and to specify the sample order in the tRNS chunk,
-    because the ISO PNG specification has a typo in the tRNS table.
-  Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
-    PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
-    available for ignoring known chunks even when not saving unknown chunks.
-  Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
-    "#if defined()" and "if !defined()" where possible.
-  Eliminated PNG_LEGACY_SUPPORTED code.
-  Moved the various unknown chunk macro definitions outside of the
-     PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
-  Added a reference to the libpng license in each file.
-  Relocated INVERT_ALPHA within png_read_png() and png_write_png().
-  Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
-  Added an "xcode" project to the projects directory (Alam Arias).
-  Avoid some tests in filter selection in pngwutil.c
-  Avoid a possible NULL dereference in debug build, in png_set_text_2().
-    (bug introduced in libpng-0.95, discovered by Evan Rouault)
-  Rebuilt configure scripts with autoconf-2.65
-  Replaced *.tar.lzma with *.tar.xz in distribution.  Get the xz codec
-    from <http://tukaani.org/xz>.
-  Reject attempt to write iCCP chunk with negative embedded profile length
-    (JD Chen)
-  Changed "trans" to "trans_alpha" and changed "trans_values" to "trans_color".
-  Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt,
-    and the "noconfig" files from the distribution.
-  Moved CMakeLists.txt from scripts into the main libpng directory.
-  Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
-  Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h
-  Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros.
-  Use png_malloc plus a loop instead of png_calloc() to initialize
-    row_pointers in png_read_png().
-  Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays.
-  Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc().
-  Removed scripts/libpng.icc
-  Changed typecast of filler from png_byte to png_uint_16 in png_set_filler().
-    (Dennis Gustafsson)
-  Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h
-  Expanded TAB characters in pngrtran.c
-  Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid
-    compiler complaints about doubly declaring things "const".
-  Eliminated unused png_ptr->row_buf_size
-  Changed all "#if [!]defined(X)" to "if[n]def X" where possible.
-  Moved redundant IHDR checking into new png_check_IHDR() in png.c
-    and report all errors found in the IHDR data.
-  Eliminated useless call to png_check_cHRM() from pngset.c
-  Eliminated a shadowed declaration of "pp" in png_handle_sPLT().
-  Patched ltmain.sh for wince support.
-  Added PNG_CONVERT_tIME_SUPPORTED macro.
-  Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED
-  Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED
-  Updated scripts/pngw32.def and projects/wince/png32ce.def
-  Copied projects/wince/png32ce.def to the scripts directory.
-  Added scripts/makefile.cegcc
-  Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0
-  Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and
-    PNG_ALLOCATED macros to detect deprecated direct access to the
-    png_struct or info_struct members and other deprecated usage in
-    applications (John Bowler).
-  Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS,
-    to prevent warnings about direct access to png structs by libpng
-    functions while building libpng.  They need to be tested, especially
-    those using compilers other than gcc.
-  Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
-  Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG".
-    They should work but still need to be updated to remove
-    references to pnggccrd.c or pngvcrd.c and ASM building.
-  Added README.txt to the beos, cbuilder5, netware, and xcode projects warning
-    that they need to be updated, to remove references to pnggccrd.c and
-    pngvcrd.c and to depend on pngpriv.h
-  Removed three direct references to read_info_ptr members in pngtest.c
-    that were detected by the new PNG_DEPSTRUCT macro.
-  Moved the png_debug macro definitions and the png_read_destroy(),
-    png_write_destroy() and png_far_to_near() prototypes from png.h
-    to pngpriv.h (John Bowler)
-  Moved the synopsis lines for png_read_destroy(), png_write_destroy()
-    png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3.
-  Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
-  Removed dependency of pngtest.o on pngpriv.h in the makefiles.
-  Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile
-  Changed png_check_sig() to !png_sig_cmp() in contrib programs.
-  Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c
-  Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c
-  Added dependency on pngpriv.h in contrib/pngminim/*/makefile
-  Revised Makefile.am to use libpng.sys while building libpng.so
-    so that only PNG_EXPORT functions are exported.
-  Removed the deprecated png_check_sig() function/macro.
-  Removed recently removed function names from scripts/*.def
-  Added PNG_PRIVATE macro definition in pngconf.h for possible future use.
-  Removed projects/beos and netware.txt; no one seems to be supporting them.
-  Moved libpng-config.in and libpng.pc-configure.in out of the scripts
-    directory, to libpng-config.in and libpng.pc.in, respectively, and
-    modified Makefile.am and configure.ac accordingly.  Now "configure"
-    needs nothing from the "scripts" directory.
-  Removed ASM builds from projects/visualc6 and projects/visualc71
-  Removed scripts/makefile.nommx and makefile.vcawin32
-  Revised CMakeLists.txt to account for new location of libpng-config.in
-    and libpng.pc.in
-  Updated INSTALL to reflect removal and relocation of files.
-  Moved descriptions of makefiles and other scripts out of INSTALL into
-    scripts/README.txt
-  Updated the copyright year in scripts/pngwin.rc from 2006 to 2009.
-  Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt
-  Align row_buf on 16-byte boundary in memory.
-  Make the 'png_jmpbuf' macro expand to a call that records the correct
-    longjmp function as well as returning a pointer to the setjmp
-    jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'.
-    (John Bowler)
-  Changed "/255" to "/255.0" in background calculations to make it clear
-    that the 255 is used as a double.
-  Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files.
-  Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco
-    to put png.h and pngconf.h in $prefix/include, like the other scripts,
-    instead of in $prefix/include/libpng.  Also revised makefile.sco
-    to put them in $prefix/include/libpng14 instead of in
-    $prefix/include/libpng/libpng14.
-  Added "bit_depth" parameter to the private png_build_gamma_table() function.
-  Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c
-  Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr
-    in pngtest.c
-
-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
+Send comments/corrections/commendations to glennrp at users.sourceforge.net
+or to png-mng-implement at lists.sf.net (subscription required; visit
+https://lists.sourceforge.net/lists/listinfo/png-mng-implement).

 Glenn R-P
--- a/166
+++ b/166
@@ -1672,7 +1672,7 @@ version 1.2.15rc2 [December 21, 2006]
  Added scripts/makefile.nommx

 version 1.2.15rc3 [December 25, 2006]
-  Fixed shared library numbering error that was intruduced in 1.2.15beta6.
+  Fixed shared library numbering error that was introduced in 1.2.15beta6.

 version 1.2.15rc4 [December 27, 2006]
  Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set.
@@ -2054,7 +2054,10 @@ version 1.4.0beta46 [December 10, 2008]
    PNG_TRANSFORM_STRIP_FILLER (Jim Barry).

 version 1.4.0beta47 [December 15, 2008]
-  Turned off PNG_READ_DITHER_SUPPORTED by default.
+  Support for dithering was disabled by default, because it has never
+    been well tested and doesn't work very well.  The code has not
+    been removed, however, and can be enabled by building libpng with
+    PNG_READ_DITHER_SUPPORTED defined.

 version 1.4.0beta48 [February 14, 2009]
  Added new exported function png_calloc().
@@ -2122,7 +2125,7 @@ version 1.4.0beta57 [May 2, 2009]
  Removed pngprefs.h and MMX from makefiles

 version 1.4.0beta58 [May 14, 2009]
-  Changed pngw32.def to pngwin.def in makefile.mingw (typo was intruduced
+  Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced
    in beta57).
  Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)

@@ -2458,11 +2461,158 @@ version 1.4.0rc08 [January 2, 2010]
 version 1.4.0 [January 3, 2010]
  No changes.

-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
+version 1.4.1beta01 [January 8, 2010]
+  Updated CMakeLists.txt for consistent indentation and to avoid an
+    unclosed if-statement warning (Philip Lowman).
+  Revised Makefile.am and Makefile.in to remove references to Y2KINFO,
+    KNOWNBUG, and libpng.la (Robert Schwebel).
+  Revised the makefiles to install the same files and symbolic
+    links as configure, except for libpng.la and libpng14.la.
+  Make png_set|get_compression_buffer_size() available even when
+    PNG_WRITE_SUPPORTED is not enabled.
+  Revised Makefile.am and Makefile.in to simplify their maintenance.
+  Revised scripts/makefile.linux to install a link to libpng14.so.14.1
+
+version 1.4.1beta02 [January 9, 2010]
+  Revised the rest of the makefiles to install a link to libpng14.so.14.1
+
+version 1.4.1beta03 [January 10, 2010]
+  Removed png_set_premultiply_alpha() from scripts/*.def
+
+version 1.4.1rc01 [January 16, 2010]
+  No changes.
+
+version 1.4.1beta04 [January 23, 2010]
+  Revised png_decompress_chunk() to improve speed and memory usage when
+    decoding large chunks.
+  Added png_set|get_chunk_malloc_max() functions.
+
+version 1.4.1beta05 [January 26, 2010]
+  Relocated "int k" declaration in pngtest.c to minimize its scope.
+
+version 1.4.1beta06 [January 28, 2010]
+  Revised png_decompress_chunk() to use a two-pass method suggested by
+    John Bowler.
+
+version 1.4.1beta07 [February 6, 2010]
+  Folded some long lines in the source files.
+  Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX,
+    and a PNG_USER_LIMITS_SUPPORTED flag.
+  Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as
+    png_ptr->png_user_chunk_malloc_max.
+  Revised png_push_save_buffer() to do fewer but larger png_malloc() calls.
+
+version 1.4.1beta08 [February 6, 2010]
+  Minor cleanup and updating of dates and copyright year.
+
+version 1.4.1beta09 [February 7, 2010]
+  Reverted to original png_push_save_buffer() code.
+
+version 1.4.1beta10 [February 9, 2010]
+  Return allocated "old_buffer" in png_push_save_buffer() before calling
+    png_error(), to avoid a potential memory leak.
+
+version 1.4.1beta11 [February 12, 2010]
+  Relocated misplaced closing curley bracket in png_decompress_chunk().
+  Removed unused "buffer_size" variable from png_decompress_chunk().
+  Removed the cbuilder5 project, which has not been updated to 1.4.0.
+  Complete rewrite of two-pass png_decompress_chunk() by John Bowler.
+
+version 1.4.1beta12 [February 14, 2010]
+  Fixed type declaration of png_get_user_malloc_max() in pngget.c (Daisuke
+    Nishikawa)
+
+version 1.4.1rc02 [January 18, 2010]
+  No changes.
+
+version 1.4.1rc03 [February 19, 2010]
+  Noted in scripts/makefile.mingw that it expects to be run under MSYS.
+  Removed obsolete unused MMX-querying support from contrib/gregbook
+  Removed the AIX redefinition of jmpbuf in png.h
+  Define _ALL_SOURCE in configure.ac, makefile.aix, and CMakeLists.txt
+    when using AIX compiler.
+
+version 1.4.1rc04 [February 19, 2010]
+  Removed unused gzio.c from contrib/pngminim gather and makefile scripts
+
+version 1.4.1 [February 25, 2010]
+
+version 1.4.2beta01 [April 1, 2010]
+  Conditionally compile an "else" statement in png_decompress_chunk().
+  Restored the macro definition of png_check_sig().
+
+version 1.4.2rc01 [April 10, 2010]
+  No changes.
+
+version 1.4.2rc02 [April 16, 2010]
+  Documented the fact that png_set_dither() was disabled since libpng-1.4.0.
+  Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect
+    more accurately what it actually does.  At the same time, renamed
+    the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to
+    PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.
+
+version 1.4.2rc03 [April 24, 2010]
+  Added some "(long)" typecasts to printf calls in png_handle_cHRM().
+  Relaxed the overly-restrictive permissions of some files.
+
+version 1.4.2rc04 [April 28, 2010]
+  Added the "vstudio" project to replace "visualc6" and "visualc71" which
+    will be removed from libpng-1.5.0.
+  Demonstrate in example.c that lang_key should be initialized.
+  Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in
+    contrib/pngminim/decoder/pngusr.h to make a smaller decoder application.
+
+version 1.4.2rc05 [April 29, 2010]
+  Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined.
+  Removed dummy_inflate.c and uncompr.c from contrib/pngminim/encoder
+  Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED
+    in gregbook/readpng2.c
+  Corrected protection of png_get_user_transform_ptr. The API declaration in
+    png.h is removed if both READ and WRITE USER_TRANSFORM are turned off
+    but was left defined in pngtrans.c
+
+version 1.4.2rc06 [May 3, 2010]
+  Moved declarations of umsg[] inside the proper #ifdef blocks in pngrutil.c
+
+version 1.4.2 [May 6, 2010]
+
+version 1.4.3beta01 [June 18, 2010]
+  Added missing quotation marks in the aix block of configure.ac
+  The new "vstudio" project was missing from the zip and 7z distributions.
+  In pngpread.c: png_push_have_row() add check for new_row > height
+
+version 1.4.3beta02 [June 18, 2010]
+  Removed the now-redundant check for out-of-bounds new_row from example.c
+
+version 1.4.3beta03 [June 18, 2010]
+  In pngpread.c: png_push_finish_row() add check for too many rows.
+
+version 1.4.3beta04 [June 19, 2010]
+  In pngpread.c: png_push_process_row() add check for too many rows.
+  Removed the checks added in beta01 and beta03, as they are now redundant.
+
+version 1.4.3beta05 [June 20, 2010]
+  Rewrote png_process_IDAT_data to consistently treat extra data as warnings
+    and handle end conditions more cleanly.
+  Removed the new (beta04) check in png_push_process_row().
+
+version 1.4.3rc01 [June 21, 2010]
+  Revised some comments in png_process_IDAT_data().
+
+version 1.4.3rc02 [June 22, 2010]
+  Changed char *msg to PNG_CONST char *msg in pngrutil.c
+  Stop memory leak when reading a malformed sCAL chunk.
+  Removed some trailing blanks.
+
+version 1.4.3rc03 [June 23, 2010]
+  Revised pngpread.c patch of beta05 to avoid an endless loop.
+
+version 1.4.3 [June 26, 2010]
+  Updated some of the "last changed" dates.
+
+Send comments/corrections/commendations to glennrp at users.sourceforge.net
+or to png-mng-implement at lists.sf.net (subscription required; visit
+https://lists.sourceforge.net/lists/listinfo/png-mng-implement).

 Glenn R-P
 */ }
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,11 +1,17 @@
 cmake_minimum_required(VERSION 2.4.3)
+set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
+
 if(UNIX AND NOT DEFINED CMAKE_BUILD_TYPE)
-   set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING "Choose the type of
-   build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug
-   Release RelWithDebInfo MinSizeRel.")
+  set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING 
+      "Choose the type of build, options are:
+         None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used)
+         Debug
+         Release
+         RelWithDebInfo
+         MinSizeRel.")
 endif()

-project(PNG C)
+project(libpng C)
 enable_testing()

 # Copyright (C) 2007-2010 Glenn Randers-Pehrson
@@ -16,28 +22,26 @@ enable_testing()

 set(PNGLIB_MAJOR 1)
 set(PNGLIB_MINOR 4)
-set(PNGLIB_RELEASE 0)
+set(PNGLIB_RELEASE 3)
 set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
 set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})

-set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
-
 # needed packages
 find_package(ZLIB REQUIRED)
 include_directories(${ZLIB_INCLUDE_DIR})

 if(NOT WIN32)
- find_library(M_LIBRARY
-     NAMES m
-     PATHS /usr/lib /usr/local/lib
- )
- if(NOT M_LIBRARY)
-   message(STATUS
-     "math library 'libm' not found - floating point support disabled")
- endif()
+  find_library(M_LIBRARY
+    NAMES m
+    PATHS /usr/lib /usr/local/lib
+  )
+  if(NOT M_LIBRARY)
+    message(STATUS
+      "math library 'libm' not found - floating point support disabled")
+  endif()
 else()
- # not needed on windows
- set(M_LIBRARY "")
+  # not needed on windows
+  set(M_LIBRARY "")
 endif()

 # COMMAND LINE OPTIONS
@@ -54,9 +58,9 @@ endif()

 if(MINGW)
  option(PNG_TESTS  "Build pngtest" NO)
-else(MINGW)
+else()
  option(PNG_TESTS  "Build pngtest" YES)
-endif(MINGW)
+endif()

 option(PNG_NO_CONSOLE_IO "FIXME" YES)
 option(PNG_NO_STDIO      "FIXME" YES)
@@ -68,21 +72,22 @@ option(PNGARG            "FIXME" YES)
 # maybe needs improving, but currently I don't know when we can enable what :)
 set(png_asm_tmp "OFF")
 if(NOT WIN32)
- find_program(uname_executable NAMES uname PATHS /bin /usr/bin /usr/local/bin)
- if(uname_executable)
-   EXEC_PROGRAM(${uname_executable} ARGS --machine OUTPUT_VARIABLE uname_output)
-   if("uname_output" MATCHES "^.*i[1-9]86.*$")
+  find_program(uname_executable NAMES uname PATHS /bin /usr/bin /usr/local/bin)
+  if(uname_executable)
+    exec_program(${uname_executable}
+                 ARGS --machine OUTPUT_VARIABLE uname_output)
+    if("uname_output" MATCHES "^.*i[1-9]86.*$")
      set(png_asm_tmp "ON")
-   else("uname_output" MATCHES "^.*i[1-9]86.*$")
+    else("uname_output" MATCHES "^.*i[1-9]86.*$")
      set(png_asm_tmp "OFF")
-   endif("uname_output" MATCHES "^.*i[1-9]86.*$")
- endif(uname_executable)
+    endif("uname_output" MATCHES "^.*i[1-9]86.*$")
+  endif(uname_executable)
 else()
- # this env var is normally only set on win64
- SET(TEXT "ProgramFiles(x86)")
- if("$ENV{${TEXT}}" STREQUAL "")
-  set(png_asm_tmp "ON")
- endif("$ENV{${TEXT}}" STREQUAL "")
+  # this env var is normally only set on win64
+  set(TEXT "ProgramFiles(x86)")
+  if("$ENV{${TEXT}}" STREQUAL "")
+    set(png_asm_tmp "ON")
+  endif("$ENV{${TEXT}}" STREQUAL "")
 endif()

 # SET LIBNAME
@@ -94,93 +99,98 @@ set(CMAKE_DEBUG_POSTFIX "d")

 # OUR SOURCES
 set(libpng_sources
- png.h
- pngconf.h
+  png.h
+  pngconf.h
 pngpriv.h
- 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.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
 )
 set(pngtest_sources
-       pngtest.c
+  pngtest.c
 )
 # SOME NEEDED DEFINITIONS

 add_definitions(-DPNG_CONFIGURE_LIBPNG)

+if(_AIX)
+  add_definitions(-D_ALL_SOURCE)
+endif(_AIX)
+
 if(MSVC)
  add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
 endif(MSVC)

 if(PNG_SHARED OR  NOT MSVC)
-	#if building msvc static this has NOT to be defined
-	add_definitions(-DZLIB_DLL)
+  #if building msvc static this has NOT to be defined
+  add_definitions(-DZLIB_DLL)
 endif()

+
 if(PNG_CONSOLE_IO_SUPPORTED)
- add_definitions(-DPNG_CONSOLE_IO_SUPPORTED)
+  add_definitions(-DPNG_CONSOLE_IO_SUPPORTED)
 endif()

 if(PNG_NO_CONSOLE_IO)
- add_definitions(-DPNG_NO_CONSOLE_IO)
+  add_definitions(-DPNG_NO_CONSOLE_IO)
 endif()

 if(PNG_NO_STDIO)
- add_definitions(-DPNG_NO_STDIO)
+  add_definitions(-DPNG_NO_STDIO)
 endif()

 if(PNG_DEBUG)
- add_definitions(-DPNG_DEBUG)
+  add_definitions(-DPNG_DEBUG)
 endif()

 if(NOT M_LIBRARY AND NOT WIN32)
- add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED)
+  add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED)
 endif()

 # NOW BUILD OUR TARGET
-include_directories(${PNG_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
+include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})

 if(PNG_SHARED)
- add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
- if(MSVC)
-   # msvc does not append 'lib' - do it here to have consistent name
-   set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
- endif()
- target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
+  add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
+  if(MSVC)
+    # msvc does not append 'lib' - do it here to have consistent name
+    set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
+  endif()
+  target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
 endif()

 if(PNG_STATIC)
 # does not work without changing name
- set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
- add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
- if(MSVC)
-   # msvc does not append 'lib' - do it here to have consistent name
-   set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
- endif()
+  set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
+  add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
+  if(MSVC)
+    # msvc does not append 'lib' - do it here to have consistent name
+    set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
+  endif()
 endif()


 if(PNG_SHARED AND WIN32)
- set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
+  set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
 endif()

 if(PNG_TESTS AND PNG_SHARED)
-# does not work with msvc due to png_lib_ver issue
- add_executable(pngtest ${pngtest_sources})
- target_link_libraries(pngtest ${PNG_LIB_NAME})
- add_test(pngtest pngtest ${PNG_SOURCE_DIR}/pngtest.png)
+  # does not work with msvc due to png_lib_ver issue
+  add_executable(pngtest ${pngtest_sources})
+  target_link_libraries(pngtest ${PNG_LIB_NAME})
+  add_test(pngtest pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png)
 endif()


@@ -191,62 +201,69 @@ set(exec_prefix ${CMAKE_INSTALL_PREFIX})
 set(libdir      ${CMAKE_INSTALL_PREFIX}/lib)
 set(includedir  ${CMAKE_INSTALL_PREFIX}/include)

-configure_file(${PNG_SOURCE_DIR}/libpng.pc.in
-  ${PNG_BINARY_DIR}/libpng.pc)
-configure_file(${PNG_SOURCE_DIR}/libpng-config.in
-  ${PNG_BINARY_DIR}/libpng-config)
-configure_file(${PNG_SOURCE_DIR}/libpng.pc.in
-  ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc)
-configure_file(${PNG_SOURCE_DIR}/libpng-config.in
-  ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
+  ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
+  ${CMAKE_CURRENT_BINARY_DIR}/libpng-config)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
+  ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
+  ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config)

 # SET UP LINKS
 if(PNG_SHARED)
  set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#    VERSION 14.${PNGLIB_RELEASE}.1.4.0
-     VERSION 14.${PNGLIB_RELEASE}.0
-     SOVERSION 14
-     CLEAN_DIRECT_OUTPUT 1)
+#   VERSION 14.${PNGLIB_RELEASE}.1.4.3
+    VERSION 14.${PNGLIB_RELEASE}.0
+    SOVERSION 14
+    CLEAN_DIRECT_OUTPUT 1)
 endif()
 if(PNG_STATIC)
  if(NOT WIN32)
    # that's uncool on win32 - it overwrites our static import lib...
    set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
-       OUTPUT_NAME ${PNG_LIB_NAME}
-       CLEAN_DIRECT_OUTPUT 1)
+      OUTPUT_NAME ${PNG_LIB_NAME}
+      CLEAN_DIRECT_OUTPUT 1)
  endif()
 endif()

 # INSTALL
 if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
-    if(PNG_SHARED)
-        install(TARGETS ${PNG_LIB_NAME}
+  if(PNG_SHARED)
+    install(TARGETS ${PNG_LIB_NAME}
            RUNTIME DESTINATION bin
            LIBRARY DESTINATION lib
            ARCHIVE DESTINATION lib)
-    endif()
-    if(PNG_STATIC)
-        install(TARGETS ${PNG_LIB_NAME_STATIC}
+  endif()
+  if(PNG_STATIC)
+    install(TARGETS ${PNG_LIB_NAME_STATIC}
            LIBRARY DESTINATION lib
            ARCHIVE DESTINATION lib)
-    endif()
+  endif()
 endif()

 if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
-    install(FILES png.h pngconf.h pngpriv.h         DESTINATION include)
-    install(FILES png.h pngconf.h pngpriv.h         DESTINATION include/${PNGLIB_NAME})
+  install(FILES png.h pngconf.h         DESTINATION include)
+  install(FILES png.h pngconf.h         DESTINATION include/${PNGLIB_NAME})
 endif()
 if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL )
-    install(PROGRAMS ${PNG_BINARY_DIR}/libpng-config      DESTINATION bin)
-    install(PROGRAMS ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
+  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
+  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+          DESTINATION bin)
 endif()
 if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
-    install(FILES libpng.3 libpngpf.3             DESTINATION man/man3)
-    install(FILES png.5                           DESTINATION man/man5)
-    install(FILES ${PNG_BINARY_DIR}/libpng.pc     DESTINATION lib/pkgconfig)
-    install(FILES ${PNG_BINARY_DIR}/libpng-config      DESTINATION bin)
-    install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc  DESTINATION lib/pkgconfig)
-    install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
+  # Install man pages
+  install(FILES libpng.3 libpngpf.3             DESTINATION man/man3)
+  install(FILES png.5                           DESTINATION man/man5)
+  # Install pkg-config files
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
+          DESTINATION lib/pkgconfig)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
+          DESTINATION bin)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
+          DESTINATION lib/pkgconfig)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+          DESTINATION bin)
 endif()

 # what's with libpng.txt and all the extra files?
--- a/4
+++ b/4
@@ -1,5 +1,5 @@

-Installing libpng version 1.4.0 - January 3, 2010
+Installing libpng version 1.4.3 - June 26, 2010

 On Unix/Linux and similar systems, you can simply type

@@ -46,7 +46,7 @@ to have access to the zlib.h and zconf.h include files that
 correspond to the version of zlib that's installed.

 You can rename the directories that you downloaded (they
-might be called "libpng-1.4.0" or "libpng14" and "zlib-1.2.3"
+might be called "libpng-1.4.3" or "libpng14" and "zlib-1.2.3"
 or "zlib123") so that you have directories called "zlib" and "libpng".

 Your directory structure should look like this:
--- a/4
+++ b/4
@@ -10,7 +10,7 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.4.0, January 3, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.3, June 26, 2010, are
 Copyright (c) 2004, 2006-2007 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
-January 3, 2010
+June 26, 2010
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,12 +1,6 @@
 # Makefile.am:
 #   Source file for Makefile.in (and hence Makefile)
 #
-# Makefile.am need only be changed on a major version number
-# change (e.g. libpng12 --> libpng13).  In that case seach
-# this file for every instance of the old base name (libpng12)
-# and change to the new one (libpng13), then change the
-# -version-number settings below so that the new values have
-# the correct major part (first field).

 PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@

@@ -16,7 +10,7 @@ AUTOMAKE_OPTIONS = foreign
 # test programs - run on make check, make distcheck
 check_PROGRAMS= pngtest
 pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng14.la
+pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
 TESTS = test-pngtest.sh
 TESTS_ENVIRONMENT= srcdir=$(srcdir) 

@@ -24,33 +18,32 @@ TESTS_ENVIRONMENT= srcdir=$(srcdir)
 dist_man_MANS= libpng.3 libpngpf.3 png.5

 # generate the -config scripts if required
-binconfigs= libpng14-config 
-EXTRA_SCRIPTS= libpng-config libpng14-config
+binconfigs= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config 
+EXTRA_SCRIPTS= libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
 bin_SCRIPTS= @binconfigs@

 # rules to build libpng, only build the old library on request
-lib_LTLIBRARIES=libpng14.la
-EXTRA_LTLIBRARIES= libpng.la
-libpng14_la_SOURCES = png.c pngset.c pngget.c pngrutil.c \
+lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
+# EXTRA_LTLIBRARIES= libpng.la
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = 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 \
 	png.h pngconf.h pngpriv.h

-libpng14_la_CPPFLAGS = @LIBPNG_DEFINES@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS = @LIBPNG_DEFINES@

-# MAJOR UPGRADE: the version-number settings below must be changed.
-libpng14_la_LDFLAGS = -no-undefined -export-dynamic \
-	-version-number 14:@PNGLIB_RELEASE@:0
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \
+	-version-number @PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0

 if HAVE_LD_VERSION_SCRIPT
  # Versioned symbols and restricted exports
-  libpng14_la_LDFLAGS += -Wl,--version-script=libpng.vers
-  libpng14_la_DEPENDENCIES = libpng.vers
+  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
+  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
 else
  # Only restricted exports when possible
-  libpng14_la_LDFLAGS += -export-symbols libpng.sym
-  libpng14_la_DEPENDENCIES = libpng.sym
+  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -export-symbols libpng.sym
+  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym
 endif

 # Avoid depending upon Character Ranges.
@@ -63,11 +56,11 @@ pkginclude_HEADERS= png.h pngconf.h
 # pkg-config stuff, note that libpng.pc is always required in order
 # to get the correct library
 pkgconfigdir = @pkgconfigdir@
-pkgconfig_DATA = libpng14.pc
+pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc

 #extra source distribution files.
 EXTRA_DIST= \
-	ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+	ANNOUNCE CHANGES INSTALL LICENSE README TODO \
 	pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
 	${srcdir}/projects/cbuilder5/* \
 	${srcdir}/projects/visualc6/* \
@@ -80,9 +73,9 @@ EXTRA_DIST= \
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.4.0.txt
+	example.c libpng-1.4.3.txt

-CLEANFILES= pngout.png libpng14.pc libpng14-config libpng.vers \
+CLEANFILES= pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers \
 libpng.sym

 MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
@@ -121,13 +114,13 @@ install-data-hook:
 	cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
 	cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc

-# do evil things to libpng to cause libpng14 to be used
+# 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
 	@set -x;\
 	cd $(DESTDIR)$(libdir);\
-	for ext in a la so sl dylib; do\
+	for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ sl dylib; do\
 		rm -f libpng.$$ext;\
                if test -f $(PNGLIB_BASENAME).$$ext; then\
                       $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
--- a/Makefile.in
+++ b/Makefile.in
@@ -18,12 +18,6 @@
 # Makefile.am:
 #   Source file for Makefile.in (and hence Makefile)
 #
-# Makefile.am need only be changed on a major version number
-# change (e.g. libpng12 --> libpng13).  In that case seach
-# this file for every instance of the old base name (libpng12)
-# and change to the new one (libpng13), then change the
-# -version-number settings below so that the new values have
-# the correct major part (first field).



@@ -91,25 +85,33 @@ am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
 	"$(DESTDIR)$(man3dir)" "$(DESTDIR)$(man5dir)" \
 	"$(DESTDIR)$(pkgconfigdir)" "$(DESTDIR)$(pkgincludedir)"
 LTLIBRARIES = $(lib_LTLIBRARIES)
-libpng_la_LIBADD =
-libpng_la_SOURCES = libpng.c
-libpng_la_OBJECTS = libpng.lo
-libpng14_la_LIBADD =
-am_libpng14_la_OBJECTS = libpng14_la-png.lo libpng14_la-pngset.lo \
-	libpng14_la-pngget.lo libpng14_la-pngrutil.lo \
-	libpng14_la-pngtrans.lo libpng14_la-pngwutil.lo \
-	libpng14_la-pngread.lo libpng14_la-pngrio.lo \
-	libpng14_la-pngwio.lo libpng14_la-pngwrite.lo \
-	libpng14_la-pngrtran.lo libpng14_la-pngwtran.lo \
-	libpng14_la-pngmem.lo libpng14_la-pngerror.lo \
-	libpng14_la-pngpread.lo
-libpng14_la_OBJECTS = $(am_libpng14_la_OBJECTS)
-libpng14_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
-	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
-	$(libpng14_la_LDFLAGS) $(LDFLAGS) -o $@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LIBADD =
+am_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS =  \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.lo \
+	libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.lo
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS =  \
+	$(am_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS)
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LINK = $(LIBTOOL) --tag=CC \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+	$(AM_CFLAGS) $(CFLAGS) \
+	$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS) $(LDFLAGS) -o \
+	$@
 am_pngtest_OBJECTS = pngtest.$(OBJEXT)
 pngtest_OBJECTS = $(am_pngtest_OBJECTS)
-pngtest_DEPENDENCIES = libpng14.la
+pngtest_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
 SCRIPTS = $(bin_SCRIPTS)
 DEFAULT_INCLUDES = -I.@am__isrc@
 depcomp = $(SHELL) $(top_srcdir)/depcomp
@@ -124,8 +126,10 @@ CCLD = $(CC)
 LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = libpng.c $(libpng14_la_SOURCES) $(pngtest_SOURCES)
-DIST_SOURCES = libpng.c $(libpng14_la_SOURCES) $(pngtest_SOURCES)
+SOURCES = $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES) \
+	$(pngtest_SOURCES)
+DIST_SOURCES = $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES) \
+	$(pngtest_SOURCES)
 man3dir = $(mandir)/man3
 man5dir = $(mandir)/man5
 NROFF = nroff
@@ -232,7 +236,7 @@ am__tar = @am__tar@
 am__untar = @am__untar@

 # generate the -config scripts if required
-binconfigs = libpng14-config 
+binconfigs = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config 
 bindir = @bindir@
 build = @build@
 build_alias = @build_alias@
@@ -283,40 +287,40 @@ PNGLIB_BASENAME = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
 # libpng does not follow GNU file name conventions
 AUTOMAKE_OPTIONS = foreign
 pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng14.la
+pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
 TESTS = test-pngtest.sh
 TESTS_ENVIRONMENT = srcdir=$(srcdir) 

 # man pages
 dist_man_MANS = libpng.3 libpngpf.3 png.5
-EXTRA_SCRIPTS = libpng-config libpng14-config
+EXTRA_SCRIPTS = libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
 bin_SCRIPTS = @binconfigs@

 # rules to build libpng, only build the old library on request
-lib_LTLIBRARIES = libpng14.la
-EXTRA_LTLIBRARIES = libpng.la
-libpng14_la_SOURCES = png.c pngset.c pngget.c pngrutil.c \
+lib_LTLIBRARIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
+# EXTRA_LTLIBRARIES= libpng.la
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = 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 \
 	png.h pngconf.h pngpriv.h

-libpng14_la_CPPFLAGS = @LIBPNG_DEFINES@
-
-# MAJOR UPGRADE: the version-number settings below must be changed.
-libpng14_la_LDFLAGS = -no-undefined -export-dynamic -version-number \
-	14:@PNGLIB_RELEASE@:0 $(am__append_1) $(am__append_2)
-@HAVE_LD_VERSION_SCRIPT_FALSE@libpng14_la_DEPENDENCIES = libpng.sym
-@HAVE_LD_VERSION_SCRIPT_TRUE@libpng14_la_DEPENDENCIES = libpng.vers
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS = @LIBPNG_DEFINES@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined \
+	-export-dynamic -version-number \
+	@PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0 \
+	$(am__append_1) $(am__append_2)
+@HAVE_LD_VERSION_SCRIPT_FALSE@libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym
+@HAVE_LD_VERSION_SCRIPT_TRUE@libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers

 # Avoid depending upon Character Ranges.
 AN = '_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
 pkginclude_HEADERS = png.h pngconf.h
-pkgconfig_DATA = libpng14.pc
+pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc

 #extra source distribution files.
 EXTRA_DIST = \
-	ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+	ANNOUNCE CHANGES INSTALL LICENSE README TODO \
 	pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
 	${srcdir}/projects/cbuilder5/* \
 	${srcdir}/projects/visualc6/* \
@@ -329,9 +333,9 @@ EXTRA_DIST = \
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.4.0.txt
+	example.c libpng-1.4.3.txt

-CLEANFILES = pngout.png libpng14.pc libpng14-config libpng.vers \
+CLEANFILES = pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers \
 libpng.sym

 MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
@@ -428,10 +432,8 @@ clean-libLTLIBRARIES:
 	  echo "rm -f \"$${dir}/so_locations\""; \
 	  rm -f "$${dir}/so_locations"; \
 	done
-libpng.la: $(libpng_la_OBJECTS) $(libpng_la_DEPENDENCIES) 
-	$(LINK)  $(libpng_la_OBJECTS) $(libpng_la_LIBADD) $(LIBS)
-libpng14.la: $(libpng14_la_OBJECTS) $(libpng14_la_DEPENDENCIES) 
-	$(libpng14_la_LINK) -rpath $(libdir) $(libpng14_la_OBJECTS) $(libpng14_la_LIBADD) $(LIBS)
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la: $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS) $(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:
 	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
@@ -485,22 +487,21 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c

-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-png.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngerror.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngget.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngmem.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngpread.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngread.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngrio.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngrtran.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngrutil.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngset.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngtrans.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngwio.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngwrite.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngwtran.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng14_la-pngwutil.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@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.Plo@am__quote@
+@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)/pngtest.Po@am__quote@

 .c.o:
@@ -524,110 +525,110 @@ distclean-compile:
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<

-libpng14_la-png.lo: png.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-png.lo -MD -MP -MF $(DEPDIR)/libpng14_la-png.Tpo -c -o libpng14_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-png.Tpo $(DEPDIR)/libpng14_la-png.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='png.c' object='libpng14_la-png.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.lo: png.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-png.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='png.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c

-libpng14_la-pngset.lo: pngset.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngset.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngset.Tpo -c -o libpng14_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngset.Tpo $(DEPDIR)/libpng14_la-pngset.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngset.c' object='libpng14_la-pngset.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.lo: pngset.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-pngset.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngset.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c

-libpng14_la-pngget.lo: pngget.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngget.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngget.Tpo -c -o libpng14_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngget.Tpo $(DEPDIR)/libpng14_la-pngget.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngget.c' object='libpng14_la-pngget.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.lo: pngget.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-pngget.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngget.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c

-libpng14_la-pngrutil.lo: pngrutil.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngrutil.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngrutil.Tpo -c -o libpng14_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngrutil.Tpo $(DEPDIR)/libpng14_la-pngrutil.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrutil.c' object='libpng14_la-pngrutil.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.lo: pngrutil.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-pngrutil.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrutil.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c

-libpng14_la-pngtrans.lo: pngtrans.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngtrans.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngtrans.Tpo -c -o libpng14_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngtrans.Tpo $(DEPDIR)/libpng14_la-pngtrans.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngtrans.c' object='libpng14_la-pngtrans.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.lo: pngtrans.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-pngtrans.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngtrans.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c

-libpng14_la-pngwutil.lo: pngwutil.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngwutil.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngwutil.Tpo -c -o libpng14_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngwutil.Tpo $(DEPDIR)/libpng14_la-pngwutil.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwutil.c' object='libpng14_la-pngwutil.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo: pngwutil.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-pngwutil.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwutil.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c

-libpng14_la-pngread.lo: pngread.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngread.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngread.Tpo -c -o libpng14_la-pngread.lo `test -f 'pngread.c' || echo '$(srcdir)/'`pngread.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngread.Tpo $(DEPDIR)/libpng14_la-pngread.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngread.c' object='libpng14_la-pngread.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.lo: pngread.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-pngread.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.lo `test -f 'pngread.c' || echo '$(srcdir)/'`pngread.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngread.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngread.lo `test -f 'pngread.c' || echo '$(srcdir)/'`pngread.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngread.lo `test -f 'pngread.c' || echo '$(srcdir)/'`pngread.c

-libpng14_la-pngrio.lo: pngrio.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngrio.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngrio.Tpo -c -o libpng14_la-pngrio.lo `test -f 'pngrio.c' || echo '$(srcdir)/'`pngrio.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngrio.Tpo $(DEPDIR)/libpng14_la-pngrio.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrio.c' object='libpng14_la-pngrio.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.lo: pngrio.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-pngrio.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.lo `test -f 'pngrio.c' || echo '$(srcdir)/'`pngrio.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrio.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngrio.lo `test -f 'pngrio.c' || echo '$(srcdir)/'`pngrio.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrio.lo `test -f 'pngrio.c' || echo '$(srcdir)/'`pngrio.c

-libpng14_la-pngwio.lo: pngwio.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngwio.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngwio.Tpo -c -o libpng14_la-pngwio.lo `test -f 'pngwio.c' || echo '$(srcdir)/'`pngwio.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngwio.Tpo $(DEPDIR)/libpng14_la-pngwio.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwio.c' object='libpng14_la-pngwio.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.lo: pngwio.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-pngwio.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.lo `test -f 'pngwio.c' || echo '$(srcdir)/'`pngwio.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwio.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngwio.lo `test -f 'pngwio.c' || echo '$(srcdir)/'`pngwio.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwio.lo `test -f 'pngwio.c' || echo '$(srcdir)/'`pngwio.c

-libpng14_la-pngwrite.lo: pngwrite.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngwrite.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngwrite.Tpo -c -o libpng14_la-pngwrite.lo `test -f 'pngwrite.c' || echo '$(srcdir)/'`pngwrite.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngwrite.Tpo $(DEPDIR)/libpng14_la-pngwrite.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwrite.c' object='libpng14_la-pngwrite.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.lo: pngwrite.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-pngwrite.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.lo `test -f 'pngwrite.c' || echo '$(srcdir)/'`pngwrite.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwrite.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngwrite.lo `test -f 'pngwrite.c' || echo '$(srcdir)/'`pngwrite.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwrite.lo `test -f 'pngwrite.c' || echo '$(srcdir)/'`pngwrite.c

-libpng14_la-pngrtran.lo: pngrtran.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngrtran.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngrtran.Tpo -c -o libpng14_la-pngrtran.lo `test -f 'pngrtran.c' || echo '$(srcdir)/'`pngrtran.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngrtran.Tpo $(DEPDIR)/libpng14_la-pngrtran.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrtran.c' object='libpng14_la-pngrtran.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.lo: pngrtran.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-pngrtran.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.lo `test -f 'pngrtran.c' || echo '$(srcdir)/'`pngrtran.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrtran.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngrtran.lo `test -f 'pngrtran.c' || echo '$(srcdir)/'`pngrtran.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngrtran.lo `test -f 'pngrtran.c' || echo '$(srcdir)/'`pngrtran.c

-libpng14_la-pngwtran.lo: pngwtran.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngwtran.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngwtran.Tpo -c -o libpng14_la-pngwtran.lo `test -f 'pngwtran.c' || echo '$(srcdir)/'`pngwtran.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngwtran.Tpo $(DEPDIR)/libpng14_la-pngwtran.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwtran.c' object='libpng14_la-pngwtran.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.lo: pngwtran.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-pngwtran.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.lo `test -f 'pngwtran.c' || echo '$(srcdir)/'`pngwtran.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwtran.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngwtran.lo `test -f 'pngwtran.c' || echo '$(srcdir)/'`pngwtran.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngwtran.lo `test -f 'pngwtran.c' || echo '$(srcdir)/'`pngwtran.c

-libpng14_la-pngmem.lo: pngmem.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngmem.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngmem.Tpo -c -o libpng14_la-pngmem.lo `test -f 'pngmem.c' || echo '$(srcdir)/'`pngmem.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngmem.Tpo $(DEPDIR)/libpng14_la-pngmem.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngmem.c' object='libpng14_la-pngmem.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.lo: pngmem.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-pngmem.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.lo `test -f 'pngmem.c' || echo '$(srcdir)/'`pngmem.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngmem.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngmem.lo `test -f 'pngmem.c' || echo '$(srcdir)/'`pngmem.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngmem.lo `test -f 'pngmem.c' || echo '$(srcdir)/'`pngmem.c

-libpng14_la-pngerror.lo: pngerror.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngerror.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngerror.Tpo -c -o libpng14_la-pngerror.lo `test -f 'pngerror.c' || echo '$(srcdir)/'`pngerror.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngerror.Tpo $(DEPDIR)/libpng14_la-pngerror.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngerror.c' object='libpng14_la-pngerror.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.lo: pngerror.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-pngerror.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.lo `test -f 'pngerror.c' || echo '$(srcdir)/'`pngerror.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngerror.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngerror.lo `test -f 'pngerror.c' || echo '$(srcdir)/'`pngerror.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngerror.lo `test -f 'pngerror.c' || echo '$(srcdir)/'`pngerror.c

-libpng14_la-pngpread.lo: pngpread.c
-@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng14_la-pngpread.lo -MD -MP -MF $(DEPDIR)/libpng14_la-pngpread.Tpo -c -o libpng14_la-pngpread.lo `test -f 'pngpread.c' || echo '$(srcdir)/'`pngpread.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng14_la-pngpread.Tpo $(DEPDIR)/libpng14_la-pngpread.Plo
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngpread.c' object='libpng14_la-pngpread.lo' libtool=yes @AMDEPBACKSLASH@
+libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.lo: pngpread.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-pngpread.lo -MD -MP -MF $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.Tpo -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.lo `test -f 'pngpread.c' || echo '$(srcdir)/'`pngpread.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.Tpo $(DEPDIR)/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngpread.c' object='libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng14_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng14_la-pngpread.lo `test -f 'pngpread.c' || echo '$(srcdir)/'`pngpread.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) $(CFLAGS) -c -o libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la-pngpread.lo `test -f 'pngpread.c' || echo '$(srcdir)/'`pngpread.c

 mostlyclean-libtool:
 	-rm -f *.lo
@@ -1238,13 +1239,13 @@ install-data-hook:
 	cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
 	cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc

-# do evil things to libpng to cause libpng14 to be used
+# 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
 	@set -x;\
 	cd $(DESTDIR)$(libdir);\
-	for ext in a la so sl dylib; do\
+	for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ sl dylib; do\
 		rm -f libpng.$$ext;\
                if test -f $(PNGLIB_BASENAME).$$ext; then\
                       $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
--- a/12
+++ b/12
@@ -1,4 +1,4 @@
-README for libpng version 1.4.0 - January 3, 2010 (shared library 14.0)
+README for libpng version 1.4.3 - June 26, 2010 (shared library 14.0)
 See the note about version numbers near the top of png.h

 See INSTALL for instructions on how to install libpng.
@@ -185,9 +185,9 @@ Files in this distribution:
       makefile.std     =>  Generic UNIX makefile (cc, creates static
                            libpng.a)
       makefile.elf     =>  Linux/ELF makefile symbol versioning,
-                            gcc, creates libpng14.so.14.1.4.0)
+                            gcc, creates libpng14.so.14.1.4.3)
       makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng14.so.14.1.4.0)
+                            (gcc, creates libpng14.so.14.1.4.3)
       makefile.gcc     =>  Generic makefile (gcc, creates static libpng.a)
       makefile.knr     =>  Archaic UNIX Makefile that converts files with
                            ansi2knr (Requires ansi2knr.c from
@@ -209,12 +209,12 @@ Files in this distribution:
       makefile.openbsd =>  OpenBSD makefile
       makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
       makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng14.so.14.1.4.0)
+                            (gcc, creates libpng14.so.14.1.4.3)
       makefile.sunos   =>  Sun makefile
       makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng14.so.14.1.4.0)
+                            (gcc, creates libpng14.so.14.1.4.3)
       makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng14.so.14.1.4.0)
+                            (gcc, creates libpng14.so.14.1.4.3)
       makefile.32sunu  =>  Sun Ultra 32-bit makefile
       makefile.64sunu  =>  Sun Ultra 64-bit makefile
       makefile.sco     =>  For SCO OSr5  ELF and Unixware 7 with Native cc
--- a/2
+++ b/2
@@ -9,7 +9,7 @@ Fix problem with C++ and EXTERN "C".
 cHRM transformation.
 Improve setjmp/longjmp usage or remove it in favor of returning error codes.
 Add "grayscale->palette" transformation and "palette->grayscale" detection.
-Improved dithering.
+Improved quantizing and dithering.
 Multi-lingual error and warning message support.
 Complete sRGB transformation (presently it simply uses gamma=0.45455).
 Man pages for function calls.
--- a/31
+++ b/31
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.65 for libpng 1.4.0.
+# Generated by GNU Autoconf 2.65 for libpng 1.4.3.
 #
 # Report bugs to <png-mng-implement@lists.sourceforge.net>.
 #
@@ -701,8 +701,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='libpng'
 PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.4.0'
-PACKAGE_STRING='libpng 1.4.0'
+PACKAGE_VERSION='1.4.3'
+PACKAGE_STRING='libpng 1.4.3'
 PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
 PACKAGE_URL=''

@@ -1432,7 +1432,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-\`configure' configures libpng 1.4.0 to adapt to many kinds of systems.
+\`configure' configures libpng 1.4.3 to adapt to many kinds of systems.

 Usage: $0 [OPTION]... [VAR=VALUE]...

@@ -1502,7 +1502,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of libpng 1.4.0:";;
+     short | recursive ) echo "Configuration of libpng 1.4.3:";;
   esac
  cat <<\_ACEOF

@@ -1607,7 +1607,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-libpng configure 1.4.0
+libpng configure 1.4.3
 generated by GNU Autoconf 2.65

 Copyright (C) 2009 Free Software Foundation, Inc.
@@ -2032,7 +2032,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.

-It was created by libpng $as_me 1.4.0, which was
+It was created by libpng $as_me 1.4.3, which was
 generated by GNU Autoconf 2.65.  Invocation command line was

  $ $0 $@
@@ -2840,7 +2840,7 @@ fi

 # Define the identity of the package.
 PACKAGE='libpng'
- VERSION='1.4.0'
+ VERSION='1.4.3'


 cat >>confdefs.h <<_ACEOF
@@ -2904,10 +2904,10 @@ fi



-PNGLIB_VERSION=1.4.0
+PNGLIB_VERSION=1.4.3
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=4
-PNGLIB_RELEASE=0
+PNGLIB_RELEASE=3



@@ -11415,7 +11415,12 @@ else
 fi


-LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG
+case $host_os in
+  aix*)
+   LIBPNG_DEFINES="-DPNG_CONFIGURE_LIBPNG -D_ALL_SOURCE";;
+  *)
+   LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG;;
+esac
 LIBPNG_DEFINES=$LIBPNG_DEFINES


@@ -12027,7 +12032,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by libpng $as_me 1.4.0, which was
+This file was extended by libpng $as_me 1.4.3, which was
 generated by GNU Autoconf 2.65.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -12093,7 +12098,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-libpng config.status 1.4.0
+libpng config.status 1.4.3
 configured by $0, generated by GNU Autoconf 2.65,
  with options \\"\$ac_cs_config\\"

--- a/configure.ac
+++ b/configure.ac
@@ -18,15 +18,15 @@ AC_PREREQ(2.59)

 dnl Version number stuff here:

-AC_INIT([libpng], [1.4.0], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.4.3], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE

-PNGLIB_VERSION=1.4.0
+PNGLIB_VERSION=1.4.3
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=4
-PNGLIB_RELEASE=0
+PNGLIB_RELEASE=3

 dnl End of version number stuff

@@ -59,7 +59,12 @@ AC_CHECK_FUNCS([memset], , AC_ERROR([memset not found in libc]))
 AC_CHECK_FUNCS([pow], , AC_CHECK_LIB(m, pow, , AC_ERROR([cannot find pow])) )
 AC_CHECK_LIB(z, zlibVersion, , AC_ERROR([zlib not installed]))

-LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG
+case $host_os in
+  aix*)
+   LIBPNG_DEFINES="-DPNG_CONFIGURE_LIBPNG -D_ALL_SOURCE";;
+  *)
+   LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG;;
+esac
 LIBPNG_DEFINES=$LIBPNG_DEFINES
 AC_SUBST(LIBPNG_DEFINES)

--- a/contrib/gregbook/readpng2.c
+++ b/contrib/gregbook/readpng2.c
@@ -73,84 +73,10 @@ static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg);

 void readpng2_version_info(void)
 {
-#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \
-    (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
-    defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-    /*
-     * WARNING:  This preprocessor approach means that the following code
-     *           cannot be used with a libpng DLL older than 1.2.0--the
-     *           compiled-in symbols for the new functions will not exist.
-     *           (Could use dlopen() and dlsym() on Unix and corresponding
-     *           calls for Windows, but not portable...)
-     */
-    {
-        int mmxsupport = png_mmx_support();
-        if (mmxsupport < 0)
-            fprintf(stderr, "   Compiled with libpng %s; using libpng %s "
-              "without MMX support.\n", PNG_LIBPNG_VER_STRING, png_libpng_ver);
-        else {
-            int compilerID;
-            png_uint_32 mmx_mask = png_get_mmx_flagmask(
-              PNG_SELECT_READ | PNG_SELECT_WRITE, &compilerID);
+    fprintf(stderr, "   Compiled with libpng %s; using libpng %s\n",
+      PNG_LIBPNG_VER_STRING, png_libpng_ver);

-            fprintf(stderr, "   Compiled with libpng %s; using libpng %s "
-              "with MMX support\n   (%s version).", PNG_LIBPNG_VER_STRING,
-              png_libpng_ver, compilerID == 1? "MSVC++" :
-              (compilerID == 2? "GNU C" : "unknown"));
-            fprintf(stderr, "  Processor (x86%s) %s MMX instructions.\n",
-#if defined(__x86_64__)
-              "_64",
-#else
-              "",
-#endif
-              mmxsupport? "supports" : "does not support");
-            if (mmxsupport > 0) {
-                int num_optims = 0;
-
-                fprintf(stderr,
-                  "      Potential MMX optimizations supported by libpng:\n");
-                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)
-                    ++num_optims;
-                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_UP)
-                    ++num_optims;
-                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)
-                    ++num_optims;
-                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)
-                    ++num_optims;
-                if (num_optims)
-                    fprintf(stderr,
-                      "         decoding %s row filters (reading)\n",
-                      (num_optims == 4)? "all non-trivial" : "some");
-                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) {
-                    fprintf(stderr, "         combining rows (reading)\n");
-                    ++num_optims;
-                }
-                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_INTERLACE) {
-                    fprintf(stderr,
-                      "         expanding interlacing (reading)\n");
-                    ++num_optims;
-                }
-                mmx_mask &= ~( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW  \
-                             | PNG_ASM_FLAG_MMX_READ_INTERLACE    \
-                             | PNG_ASM_FLAG_MMX_READ_FILTER_SUB   \
-                             | PNG_ASM_FLAG_MMX_READ_FILTER_UP    \
-                             | PNG_ASM_FLAG_MMX_READ_FILTER_AVG   \
-                             | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH );
-                if (mmx_mask) {
-                    fprintf(stderr, "         other (unknown)\n");
-                    ++num_optims;
-                }
-                if (num_optims == 0)
-                    fprintf(stderr, "         (none)\n");
-            }
-        }
-    }
-#else
-    fprintf(stderr, "   Compiled with libpng %s; using libpng %s "
-      "without MMX support.\n", PNG_LIBPNG_VER_STRING, png_libpng_ver);
-#endif
-
-    fprintf(stderr, "   Compiled with zlib %s; using zlib %s.\n",
+    fprintf(stderr, "   and with zlib %s; using zlib %s.\n",
      ZLIB_VERSION, zlib_version);
 }

@@ -203,7 +129,7 @@ int readpng2_init(mainprog_info *mainprog_ptr)
    }


-#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
+#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
    /* prepare the reader to ignore all recognized chunks whose data won't be
     * used, i.e., all chunks recognized by libpng except for IHDR, PLTE, IDAT,
     * IEND, tRNS, bKGD, gAMA, and sRGB (small performance improvement) */
@@ -232,7 +158,7 @@ int readpng2_init(mainprog_info *mainprog_ptr)
        png_set_keep_unknown_chunks(png_ptr, 1 /* PNG_HANDLE_CHUNK_NEVER */,
          chunks_to_ignore, sizeof(chunks_to_ignore)/5);
    }
-#endif /* PNG_UNKNOWN_CHUNKS_SUPPORTED */
+#endif /* PNG_HANDLE_AS_UNKNOWN_SUPPORTED */


    /* instead of doing png_init_io() here, now we set up our callback
@@ -242,96 +168,6 @@ int readpng2_init(mainprog_info *mainprog_ptr)
      readpng2_info_callback, readpng2_row_callback, readpng2_end_callback);


-    /*
-     * may as well enable or disable MMX routines here, if supported;
-     *
-     * to enable all:  mask = png_get_mmx_flagmask (
-     *                   PNG_SELECT_READ | PNG_SELECT_WRITE, &compilerID);
-     *                 flags = png_get_asm_flags (png_ptr);
-     *                 flags |= mask;
-     *                 png_set_asm_flags (png_ptr, flags);
-     *
-     * to disable all:  mask = png_get_mmx_flagmask (
-     *                   PNG_SELECT_READ | PNG_SELECT_WRITE, &compilerID);
-     *                  flags = png_get_asm_flags (png_ptr);
-     *                  flags &= ~mask;
-     *                  png_set_asm_flags (png_ptr, flags);
-     */
-
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
-    defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-    /*
-     * WARNING:  This preprocessor approach means that the following code
-     *           cannot be used with a libpng DLL older than 1.2.0--the
-     *           compiled-in symbols for the new functions will not exist.
-     *           (Could use dlopen() and dlsym() on Unix and corresponding
-     *           calls for Windows, but not portable...)
-     */
-    {
-#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
-        png_uint_32 mmx_disable_mask = 0;
-        png_uint_32 asm_flags, mmx_mask;
-        int compilerID;
-
-        if (mainprog_ptr->nommxfilters)
-            mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_FILTER_SUB   \
-                                | PNG_ASM_FLAG_MMX_READ_FILTER_UP    \
-                                | PNG_ASM_FLAG_MMX_READ_FILTER_AVG   \
-                                | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH );
-        if (mainprog_ptr->nommxcombine)
-            mmx_disable_mask |= PNG_ASM_FLAG_MMX_READ_COMBINE_ROW;
-        if (mainprog_ptr->nommxinterlace)
-            mmx_disable_mask |= PNG_ASM_FLAG_MMX_READ_INTERLACE;
-        asm_flags = png_get_asm_flags(png_ptr);
-        png_set_asm_flags(png_ptr, asm_flags & ~mmx_disable_mask);
-
-
-        /* Now query libpng's asm settings, just for yuks.  Note that this
-         * differs from the querying of its *potential* MMX capabilities
-         * in readpng2_version_info(); this is true runtime verification. */
-
-        asm_flags = png_get_asm_flags(png_ptr);
-        mmx_mask = png_get_mmx_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE,
-          &compilerID);
-        if (asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_COMPILED)
-            fprintf(stderr,
-              "  MMX support (%s version) is compiled into libpng\n",
-              compilerID == 1? "MSVC++" :
-              (compilerID == 2? "GNU C" : "unknown"));
-        else
-            fprintf(stderr, "  MMX support is not compiled into libpng\n");
-        fprintf(stderr, "  MMX instructions are %ssupported by CPU\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU)? "" : "not ");
-        fprintf(stderr, "  MMX read support for combining rows is %sabled\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)? "en" : "dis");
-        fprintf(stderr,
-          "  MMX read support for expanding interlacing is %sabled\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE)? "en" : "dis");
-        fprintf(stderr, "  MMX read support for \"sub\" filter is %sabled\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "en" : "dis");
-        fprintf(stderr, "  MMX read support for \"up\" filter is %sabled\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "en" : "dis");
-        fprintf(stderr, "  MMX read support for \"avg\" filter is %sabled\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "en" : "dis");
-        fprintf(stderr, "  MMX read support for \"Paeth\" filter is %sabled\n",
-          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "en" : "dis");
-        asm_flags &= (mmx_mask & ~( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW  \
-                                  | PNG_ASM_FLAG_MMX_READ_INTERLACE    \
-                                  | PNG_ASM_FLAG_MMX_READ_FILTER_SUB   \
-                                  | PNG_ASM_FLAG_MMX_READ_FILTER_UP    \
-                                  | PNG_ASM_FLAG_MMX_READ_FILTER_AVG   \
-                                  | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ));
-        if (asm_flags)
-            fprintf(stderr,
-              "  additional MMX support is also enabled (0x%02lx)\n",
-              asm_flags);
-#else  /* !PNG_ASSEMBLER_CODE_SUPPORTED */
-        fprintf(stderr, "  MMX querying is disabled in libpng.\n");
-#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
-    }
-#endif
-
-
    /* make sure we save our pointers for use in readpng2_decode_data() */

    mainprog_ptr->png_ptr = png_ptr;
--- a/contrib/gregbook/readpng2.h
+++ b/contrib/gregbook/readpng2.h
@@ -96,11 +96,6 @@ typedef struct _mainprog_info {
    int rowbytes;
    int channels;
    int need_bgcolor;
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-    int nommxfilters;
-    int nommxcombine;
-    int nommxinterlace;
-#endif
    int state;
    uch bg_red;
    uch bg_green;
--- a/contrib/gregbook/rpng2-win.c
+++ b/contrib/gregbook/rpng2-win.c
@@ -32,6 +32,7 @@
    - 2.01:  fixed 64-bit typo in readpng2.c
    - 2.02:  fixed improper display of usage screen on PNG error(s); fixed
              unexpected-EOF and file-read-error cases
+    - 2.03:  removed runtime MMX-enabling/disabling and obsolete -mmx* options

  ---------------------------------------------------------------------------

@@ -395,18 +396,6 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
            }
        } else if (!strncmp(*argv, "-timing", 2)) {
            timing = TRUE;
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-        } else if (!strncmp(*argv, "-nommxfilters", 7)) {
-            rpng2_info.nommxfilters = TRUE;
-        } else if (!strncmp(*argv, "-nommxcombine", 7)) {
-            rpng2_info.nommxcombine = TRUE;
-        } else if (!strncmp(*argv, "-nommxinterlace", 7)) {
-            rpng2_info.nommxinterlace = TRUE;
-        } else if (!strcmp(*argv, "-nommx")) {
-            rpng2_info.nommxfilters = TRUE;
-            rpng2_info.nommxcombine = TRUE;
-            rpng2_info.nommxinterlace = TRUE;
-#endif
        } else {
            if (**argv != '-') {
                filename = *argv;
@@ -430,9 +419,6 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
        readpng2_version_info();
        fprintf(stderr, "\n"
          "Usage:  %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-          "        %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
-#endif
          "        %*s file.png\n\n"
          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
@@ -445,10 +431,6 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
          "\t\t  transparent images; overrides -bgcolor option\n"
          "    -timing\tenables delay for every block read, to simulate modem\n"
          "\t\t  download of image (~36 Kbps)\n"
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-          "    -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
-          "\t\t  combining rows, and expanding interlacing, respectively\n"
-#endif
          "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
          "Press Q or Esc to quit this usage screen. ",
          PROGNAME,
--- a/contrib/gregbook/rpng2-x.c
+++ b/contrib/gregbook/rpng2-x.c
@@ -40,6 +40,7 @@
    - 2.02:  fixed improper display of usage screen on PNG error(s); fixed
              unexpected-EOF and file-read-error cases; fixed Trace() cut-and-
              paste bugs
+    - 2.03:  deleted runtime MMX-enabling/disabling and obsolete -mmx* options

  ---------------------------------------------------------------------------

@@ -94,7 +95,7 @@

 #define PROGNAME  "rpng2-x"
 #define LONGNAME  "Progressive PNG Viewer for X"
-#define VERSION   "2.02 of 16 March 2008"
+#define VERSION   "2.03 of 25 February 2010"
 #define RESNAME   "rpng2"	/* our X resource application name */
 #define RESCLASS  "Rpng"	/* our X resource class name */

@@ -434,18 +435,6 @@ int main(int argc, char **argv)
                else if (loop_interval > 100000)   /* bit more than one day */
                    loop_interval = 100000;
            }
-#endif
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-        } else if (!strncmp(*argv, "-nommxfilters", 7)) {
-            rpng2_info.nommxfilters = TRUE;
-        } else if (!strncmp(*argv, "-nommxcombine", 7)) {
-            rpng2_info.nommxcombine = TRUE;
-        } else if (!strncmp(*argv, "-nommxinterlace", 7)) {
-            rpng2_info.nommxinterlace = TRUE;
-        } else if (!strcmp(*argv, "-nommx")) {
-            rpng2_info.nommxfilters = TRUE;
-            rpng2_info.nommxcombine = TRUE;
-            rpng2_info.nommxinterlace = TRUE;
 #endif
        } else {
            if (**argv != '-') {
@@ -468,9 +457,6 @@ int main(int argc, char **argv)
        readpng2_version_info();
        fprintf(stderr, "\n"
          "Usage:  %s [-display xdpy] [-gamma exp] [-bgcolor bg | -bgpat pat]\n"
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-          "        %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
-#endif
 #ifdef FEATURE_LOOP
          "        %*s [-usleep dur | -timing] [-pause] [-loop [sec]] file.png\n\n"
 #else
@@ -490,10 +476,6 @@ int main(int argc, char **argv)
          "    -loop\tloops through background images after initial display\n"
          "\t\t  is complete (depends on -bgpat)\n"
          "    sec \tseconds to display each background image (default = 2)\n"
-#endif
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
-          "    -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
-          "\t\t  combining rows, and expanding interlacing, respectively\n"
 #endif
          "    dur \tduration in microseconds to wait after displaying each\n"
          "\t\t  row (for demo purposes)\n"
--- a/contrib/pngminim/decoder/gather.sh
+++ b/contrib/pngminim/decoder/gather.sh
@@ -5,4 +5,4 @@ rm example.c pngtest.c pngpread.c pngw*.c
 # change the following 2 lines if zlib is somewhere else
 cp ../../../../zlib/*.h .
 cp ../../../../zlib/*.c .
-rm minigzip.c example.c compress.c deflate.c 
+rm minigzip.c example.c compress.c deflate.c gz*
--- a/contrib/pngminim/decoder/makefile
+++ b/contrib/pngminim/decoder/makefile
@@ -15,7 +15,7 @@ O=.o
 L=.a
 E=

-ZOBJS  = adler32$(O) crc32$(O) gzio$(O) \
+ZOBJS  = adler32$(O) crc32$(O) \
 	 infback$(O) inffast$(O) inflate$(O) inftrees$(O) \
 	 trees$(O) uncompr$(O) zutil$(O)

--- a/contrib/pngminim/decoder/pngusr.h
+++ b/contrib/pngminim/decoder/pngusr.h
@@ -23,9 +23,10 @@
 #define png_error(s1,s2) png_err(s1)
 #define png_chunk_error(s1,s2) png_err(s1)

+#define PNG_NO_READ_BGR
 #define PNG_NO_READ_GAMMA
 #define PNG_NO_READ_BACKGROUND
-#define PNG_NO_READ_DITHER
+#define PNG_NO_READ_QUANTIZE
 #define PNG_NO_READ_INVERT
 #define PNG_NO_READ_SHIFT
 #define PNG_NO_READ_PACK
@@ -59,6 +60,7 @@
 #define PNG_NO_WRITE_SUPPORTED

 #define PNG_NO_INFO_IMAGE
+#define PNG_NO_IO_STATE
 #define PNG_NO_USER_MEM
 #define PNG_NO_FIXED_POINT_SUPPORTED
 #define PNG_NO_MNG_FEATURES
@@ -69,5 +71,9 @@
 #define PNG_NO_ERROR_NUMBERS
 #define PNG_NO_EASY_ACCESS
 #define PNG_NO_PROGRESSIVE_READ
+#define PNG_NO_USER_LIMITS
+#define PNG_NO_SET_USER_LIMITS
+#define PNG_NO_TIME_RFC1123

 #endif /* MINRDPNGCONF_H */
+
--- a/contrib/pngminim/encoder/dummy_inflate.c
+++ b/contrib/pngminim/encoder/dummy_inflate.c
@@ -1,27 +0,0 @@
-#include "zlib.h"
-
-int ZEXPORT inflate(strm, flush)
-z_streamp strm;
-int flush;
-{ return Z_OK ; }
-
-int ZEXPORT inflateReset(strm)
-z_streamp strm;
-{ return Z_OK ; }
-
-int ZEXPORT inflateEnd(strm)
-z_streamp strm;
-{ return Z_STREAM_ERROR ; }
-
-int ZEXPORT inflateInit_(strm, version, stream_size)
-z_streamp strm;
-const char *version;
-int stream_size;
-{ return Z_OK ; }
-
-int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
-z_streamp strm;
-int windowBits;
-const char *version;
-int stream_size;
-{ return Z_STREAM_ERROR ; }
--- a/contrib/pngminim/encoder/gather.sh
+++ b/contrib/pngminim/encoder/gather.sh
@@ -6,4 +6,4 @@ rm example.c pngtest.c pngr*.c pngpread.c
 cp ../../../../zlib/*.h .
 cp ../../../../zlib/*.c .
 rm inf*.[ch]
-rm minigzip.c example.c
+rm uncompr.c minigzip.c example.c gz*
--- a/contrib/pngminim/encoder/makefile
+++ b/contrib/pngminim/encoder/makefile
@@ -14,9 +14,8 @@ O=.o
 L=.a
 E=

-ZOBJS  = adler32$(O) compress$(O) crc32$(O) deflate$(O) gzio$(O) \
-	 dummy_inflate$(O) \
-	 trees$(O) uncompr$(O) zutil$(O)
+ZOBJS  = adler32$(O) compress$(O) crc32$(O) deflate$(O) \
+	 trees$(O) zutil$(O)

 OBJS  = pnm2pngm$(O) png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
 	pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \
--- a/contrib/pngminim/encoder/pngusr.h
+++ b/contrib/pngminim/encoder/pngusr.h
@@ -22,8 +22,9 @@
 #define png_chunk_error(s1,s2) png_err(s1)

 #define PNG_NO_WRITE_BACKGROUND
+#define PNG_NO_WRITE_BGR
 #define PNG_NO_WRITE_GAMMA
-#define PNG_NO_WRITE_DITHER
+#define PNG_NO_WRITE_QUANTIZE
 #define PNG_NO_WRITE_INVERT
 #define PNG_NO_WRITE_SHIFT
 #define PNG_NO_WRITE_PACK
@@ -58,6 +59,7 @@
 #define PNG_NO_WRITE_FLUSH

 #define PNG_NO_INFO_IMAGE
+#define PNG_NO_IO_STATE
 #define PNG_NO_USER_MEM
 #define PNG_NO_FIXED_POINT_SUPPORTED
 #define PNG_NO_MNG_FEATURES
@@ -67,5 +69,8 @@
 #define PNG_NO_ZALLOC_ZERO
 #define PNG_NO_ERROR_NUMBERS
 #define PNG_NO_EASY_ACCESS
+#define PNG_NO_USER_LIMITS
+#define PNG_NO_SET_USER_LIMITS
+#define PNG_NO_TIME_RFC1143

 #endif /* MINWRPNGCONF_H */
--- a/contrib/pngminim/preader/gather.sh
+++ b/contrib/pngminim/preader/gather.sh
@@ -6,4 +6,4 @@ rm example.c pngtest.c pngw*.c
 # change the following 2 lines if zlib is somewhere else
 cp ../../../../zlib/*.h .
 cp ../../../../zlib/*.c .
-rm minigzip.c example.c compress.c deflate.c 
+rm minigzip.c example.c compress.c deflate.c gz*
--- a/contrib/pngminim/preader/makefile
+++ b/contrib/pngminim/preader/makefile
@@ -31,7 +31,7 @@ O=.o
 L=.a
 E=

-ZOBJS  = adler32$(O) crc32$(O) gzio$(O) \
+ZOBJS  = adler32$(O) crc32$(O) \
 	 infback$(O) inffast$(O) inflate$(O) inftrees$(O) \
 	 trees$(O) uncompr$(O) zutil$(O)

--- a/contrib/pngminim/preader/pngusr.h
+++ b/contrib/pngminim/preader/pngusr.h
@@ -19,6 +19,7 @@
 #define png_error(s1,s2) png_err(s1)
 #define png_chunk_error(s1,s2) png_err(s1)

+#define PNG_NO_READ_BGR
 #define PNG_NO_READ_DITHER
 #define PNG_NO_READ_INVERT
 #define PNG_NO_READ_SHIFT
@@ -50,6 +51,7 @@
 #define PNG_NO_WRITE_SUPPORTED

 #define PNG_NO_INFO_IMAGE
+#define PNG_NO_IO_STATE
 #define PNG_NO_USER_MEM
 #define PNG_NO_FIXED_POINT_SUPPORTED
 #define PNG_NO_MNG_FEATURES
@@ -59,5 +61,8 @@
 #define PNG_NO_ZALLOC_ZERO
 #define PNG_NO_ERROR_NUMBERS
 #define PNG_NO_EASY_ACCESS
+#define PNG_NO_USER_LIMITS
+#define PNG_NO_SET_USER_LIMITS
+#define PNG_NO_TIME_RFC1143

 #endif /* MINPRDPNGCONF_H */
--- a/contrib/pngsuite/ftbbn1g04.png
+++ b/contrib/pngsuite/ftbbn1g04.png
--- a/contrib/pngsuite/ftbbn2c16.png
+++ b/contrib/pngsuite/ftbbn2c16.png
--- a/contrib/pngsuite/ftbbn3p08.png
+++ b/contrib/pngsuite/ftbbn3p08.png
--- a/contrib/pngsuite/ftbgn2c16.png
+++ b/contrib/pngsuite/ftbgn2c16.png
--- a/contrib/pngsuite/ftbgn3p08.png
+++ b/contrib/pngsuite/ftbgn3p08.png
--- a/contrib/pngsuite/ftbrn2c08.png
+++ b/contrib/pngsuite/ftbrn2c08.png
--- a/contrib/pngsuite/ftbwn1g16.png
+++ b/contrib/pngsuite/ftbwn1g16.png
--- a/contrib/pngsuite/ftbwn3p08.png
+++ b/contrib/pngsuite/ftbwn3p08.png
--- a/contrib/pngsuite/ftbyn3p08.png
+++ b/contrib/pngsuite/ftbyn3p08.png
--- a/contrib/pngsuite/ftp0n1g08.png
+++ b/contrib/pngsuite/ftp0n1g08.png
--- a/contrib/pngsuite/ftp0n2c08.png
+++ b/contrib/pngsuite/ftp0n2c08.png
--- a/contrib/pngsuite/ftp0n3p08.png
+++ b/contrib/pngsuite/ftp0n3p08.png
--- a/contrib/pngsuite/ftp1n3p08.png
+++ b/contrib/pngsuite/ftp1n3p08.png
--- a/example.c
+++ b/example.c
@@ -2,7 +2,7 @@
 #if 0 /* in case someone actually tries to compile this */

 /* example.c - an example of using libpng
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.2 [May 6, 2010]
 * This file has been placed in the public domain by the authors.
 * Maintained 1998-2010 Glenn Randers-Pehrson
 * Maintained 1996, 1997 Andreas Dilger)
@@ -160,7 +160,7 @@ void read_png(FILE *fp, unsigned int sig_read)  /* File is already open */
    * If you have enough memory to read in the entire image at once,
    * and you need to specify only transforms that can be controlled
    * with one of the PNG_TRANSFORM_* bits (this presently excludes
-    * dithering, filling, setting background, and doing gamma
+    * quantizing, filling, setting background, and doing gamma
    * adjustment), then you can read the entire image (including
    * pixels) into the info structure with this call:
    */
@@ -271,7 +271,8 @@ void read_png(FILE *fp, unsigned int sig_read)  /* File is already open */
         png_set_gamma(png_ptr, screen_gamma, 0.45455);
   }

-   /* Dither RGB files down to 8 bit palette or reduce palettes
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+   /* Quantize RGB files down to 8 bit palette or reduce palettes
    * to the number of colors available on your screen.
    */
   if (color_type & PNG_COLOR_MASK_COLOR)
@@ -282,10 +283,11 @@ void read_png(FILE *fp, unsigned int sig_read)  /* File is already open */
      /* This reduces the image to the application supplied palette */
      if (/* We have our own palette */)
      {
-         /* An array of colors to which the image should be dithered */
+         /* An array of colors to which the image should be quantized */
         png_color std_color_cube[MAX_SCREEN_COLORS];

-         png_set_dither(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
+         /* Prior to libpng-1.4.2, this was png_set_dither(). */
+         png_set_quantize(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
            MAX_SCREEN_COLORS, NULL, 0);
      }
      /* This reduces the image to the palette supplied in the file */
@@ -295,10 +297,11 @@ void read_png(FILE *fp, unsigned int sig_read)  /* File is already open */

         png_get_hIST(png_ptr, info_ptr, &histogram);

-         png_set_dither(png_ptr, palette, num_palette,
+         png_set_quantize(png_ptr, palette, num_palette,
                        max_screen_colors, histogram, 0);
      }
   }
+#endif /* PNG_READ_QUANTIZE_SUPPORTED */

   /* Invert monochrome files to have 0 as white and 1 as black */
   png_set_invert_mono(png_ptr);
@@ -509,20 +512,17 @@ row_callback(png_structp png_ptr, png_bytep new_row,
    * shown below:
    */

-   /* Check if row_num is in bounds. */
-   if ((row_num >= 0) && (row_num < height))
-   {
-     /* Get pointer to corresponding row in our
-      * PNG read buffer.
-      */
-     png_bytep old_row = ((png_bytep *)our_data)[row_num];
+   /* Get pointer to corresponding row in our
+    * PNG read buffer.
+    */
+   png_bytep old_row = ((png_bytep *)our_data)[row_num];
+
+   /* If both rows are allocated then copy the new row
+    * data to the corresponding row data.
+    */
+   if ((old_row != NULL) && (new_row != NULL))
+   png_progressive_combine_row(png_ptr, old_row, new_row);

-     /* If both rows are allocated then copy the new row
-      * data to the corresponding row data.
-      */
-     if ((old_row != NULL) && (new_row != NULL))
-     png_progressive_combine_row(png_ptr, old_row, new_row);
-   }
   /*
    * The rows and passes are called in order, so you don't really
    * need the row_num and pass, but I'm supplying them because it
@@ -684,8 +684,11 @@ void write_png(char *file_name /* , ... other image information ... */)
   text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt;
 #ifdef PNG_iTXt_SUPPORTED
   text_ptr[0].lang = NULL;
+   text_ptr[0].lang_key = NULL;
   text_ptr[1].lang = NULL;
+   text_ptr[1].lang_key = NULL;
   text_ptr[2].lang = NULL;
+   text_ptr[2].lang_key = NULL;
 #endif
   png_set_text(png_ptr, info_ptr, text_ptr, 3);

--- a/libpng-1.4.3.txt
+++ b/libpng-1.4.3.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.4.0 - January 3, 2010
+ libpng version 1.4.3 - June 26, 2010
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
 Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng

 Based on:

- libpng versions 0.97, January 1998, through 1.4.0 - January 3, 2010
+ libpng versions 0.97, January 1998, through 1.4.3 - June 26, 2010
 Updated and distributed by Glenn Randers-Pehrson
 Copyright (c) 1998-2009 Glenn Randers-Pehrson

@@ -241,9 +241,13 @@ free any memory.
    }

 If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_SETJMP_NOT_SUPPORTED, in which case
+you can compile libpng with PNG_NO_SETJMP, in which case
 errors will result in a call to PNG_ABORT() which defaults to abort().

+You can #define PNG_ABORT() to a function that does something
+more useful than abort(), as long as your function does not
+return.
+
 Now you need to set up the input code.  The default for libpng is to
 use the C function fread().  If you use this, you will need to pass a
 valid FILE * in the function png_init_io().  Be sure that the file is
@@ -260,6 +264,15 @@ libpng know that there are some bytes missing from the start of the file.

    png_set_sig_bytes(png_ptr, number);

+You can change the zlib compression buffer size to be used while
+reading compressed data with
+
+    png_set_compression_buffer_size(png_ptr, buffer_size);
+
+where the default size is 8192 bytes.  Note that the buffer size
+is changed immediately and the buffer is reallocated immediately,
+instead of setting a flag to be acted upon later.
+
 Setting up callback code

 You can set up a callback function to handle any unknown chunks in the
@@ -423,6 +436,18 @@ where 0x7fffffffL means unlimited.  You can retrieve this limit with
 This limit also applies to the number of buffers that can be allocated
 by png_decompress_chunk() while decompressing iTXt, zTXt, and iCCP chunks.

+You can also set a limit on the amount of memory that a compressed chunk
+other than IDAT can occupy, with
+
+   png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max);
+
+and you can retrieve the limit with
+
+   chunk_malloc_max = png_get_chunk_malloc_max(png_ptr);
+
+Any chunks that would cause either of these limits to be exceeded will
+be ignored.
+
 The high-level read interface

 At this point there are two ways to proceed; through the high-level
@@ -454,7 +479,7 @@ you want to do are limited to the following set:
                                to RGB (or GA to RGBA)

 (This excludes setting a background color, doing gamma transformation,
-dithering, and setting filler.)  If this is the case, simply do this:
+quantizing, and setting filler.)  If this is the case, simply do this:

    png_read_png(png_ptr, info_ptr, png_transforms, NULL)

@@ -878,7 +903,7 @@ things.
 As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
 added.  It expands the sample depth without changing tRNS to alpha.

-As of libpng version 1.4.0, not all possible expansions are supported.
+As of libpng version 1.4.3, not all possible expansions are supported.

 In the following table, the 01 means grayscale with depth<8, 31 means
 indexed with depth<8, other numerals represent the color type, "T" means
@@ -1138,6 +1163,40 @@ recommended that PNG viewers support gamma correction.
   else
      png_set_gamma(png_ptr, screen_gamma, 0.45455);

+If you need to reduce an RGB file to a paletted file, or if a paletted
+file has more entries then will fit on your screen, png_set_quantize()
+will do that.  Note that this is a simple match dither that merely
+finds the closest color available.  This should work fairly well with
+optimized palettes, and fairly badly with linear color cubes.  If you
+pass a palette that is larger then maximum_colors, the file will
+reduce the number of colors in the palette so it will fit into
+maximum_colors.  If there is a histogram, it will use it to make
+more intelligent choices when reducing the palette.  If there is no
+histogram, it may not do as good a job.
+
+   if (color_type & PNG_COLOR_MASK_COLOR)
+   {
+      if (png_get_valid(png_ptr, info_ptr,
+         PNG_INFO_PLTE))
+      {
+         png_uint_16p histogram = NULL;
+
+         png_get_hIST(png_ptr, info_ptr,
+            &histogram);
+         png_set_quantize(png_ptr, palette, num_palette,
+            max_screen_colors, histogram, 1);
+      }
+      else
+      {
+         png_color std_color_cube[MAX_SCREEN_COLORS] =
+            { ... colors ... };
+
+         png_set_quantize(png_ptr, std_color_cube,
+            MAX_SCREEN_COLORS, MAX_SCREEN_COLORS,
+            NULL,0);
+      }
+   }
+
 PNG files describe monochrome as black being zero and white being one.
 The following code will reverse this (make black be one and white be
 zero):
@@ -1667,9 +1726,13 @@ section below for more information on the libpng error handling.
    return;

 If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_SETJMP_NOT_SUPPORTED, in which case
+you can compile libpng with PNG_NO_SETJMP, in which case
 errors will result in a call to PNG_ABORT() which defaults to abort().

+You can #define PNG_ABORT() to a function that does something
+more useful than abort(), as long as your function does not
+return.
+
 Now you need to set up the output code.  The default for libpng is to
 use the C function fwrite().  If you use this, you will need to pass a
 valid FILE * in the function png_init_io().  Be sure that the file is
@@ -2479,7 +2542,7 @@ via
 Your replacement memory functions must have prototypes as follows:

    png_voidp malloc_fn(png_structp png_ptr,
-       png_size_t size);
+       png_alloc_size_t size);
    void free_fn(png_structp png_ptr, png_voidp ptr);

 Your malloc_fn() must return NULL in case of failure.  The png_malloc()
@@ -2530,8 +2593,9 @@ Error handling in libpng is done through png_error() and png_warning().
 Errors handled through png_error() are fatal, meaning that png_error()
 should never return to its caller.  Currently, this is handled via
 setjmp() and longjmp() (unless you have compiled libpng with
-PNG_SETJMP_NOT_SUPPORTED, in which case it is handled via PNG_ABORT()),
-but you could change this to do things like exit() if you should wish.
+PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()),
+but you could change this to do things like exit() if you should wish,
+as long as your function does not return.

 On non-fatal errors, png_warning() is called
 to print a warning message, and then control returns to the calling code.
@@ -3063,6 +3127,8 @@ We changed the prototype for png_malloc() from
 to
    png_malloc(png_structp png_ptr, png_alloc_size_t size)

+This also applies to the prototype for the user replacement malloc_fn().
+
 The png_calloc() function was added and is used in place of
 of "png_malloc(); png_memset();" except in the case in png_read_png()
 where the array consists of pointers; in this case a "for" loop is used
@@ -3082,6 +3148,15 @@ The png_zalloc() and png_zfree() functions are no longer exported.
 The png_zalloc() function no longer zeroes out the memory that it
 allocates.

+Support for dithering was disabled by default in libpng-1.4.0, because
+been well tested and doesn't actually "dither".  The code was not
+removed, however, and could be enabled by building libpng with
+PNG_READ_DITHER_SUPPORTED defined.  In libpng-1.4.2, this support
+was reenabled, but the function was renamed png_set_quantize() to
+reflect more accurately what it actually does.  At the same time,
+the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to
+PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.
+
 We removed the trailing '.' from the warning and error messages.

 X. Detecting libpng
@@ -3151,12 +3226,12 @@ the statement that follows the comment:
    /* Single-line comment */
    statement;

-    /* Multiple-line
-     * comment
+    /* This is a multiple-line
+     * comment.
     */
    statement;

-Very short comments can be placed at the end of the statement
+Very short comments can be placed after the end of the statement
 to which they pertain:

    statement;    /* comment */
@@ -3203,9 +3278,9 @@ macros begin with "PNG_".

 We put a space after each comma and after each semicolon
 in "for" statments, and we put spaces before and after each
-C binary operator and after "for" or "while".  We don't
-put a space between a typecast and the expression being
-cast, nor do we put one between a function name and the
+C binary operator and after "for" or "while", and before
+"?".  We don't put a space between a typecast and the expression
+being cast, nor do we put one between a function name and the
 left parenthesis that follows it:

    for (i = 2; i > 0; --i)
@@ -3222,13 +3297,13 @@ Other rules can be inferred by inspecting the libpng source.

 XIII. Y2K Compliance in libpng

-January 3, 2010
+June 26, 2010

 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 1.4.0 are Y2K compliant.  It is my belief that earlier
+upward through 1.4.3 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
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "January 3, 2010"
+.TH LIBPNG 3 "June 26, 2010"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0
+libpng \- Portable Network Graphics (PNG) Reference Library 1.4.3
 .SH SYNOPSIS
 \fI\fB

@@ -192,6 +192,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0

 \fI\fB

+\fBpng_alloc_size_t png_get_chunk_malloc_max (png_structp \fIpng_ptr\fP\fB);\fP
+
+\fI\fB
+
 \fBpng_voidp png_get_mem_ptr(png_structp \fIpng_ptr\fP\fB);\fP

 \fI\fB
@@ -450,10 +454,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0

 \fI\fB

-\fBvoid png_set_dither (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_dither\fP\fB);\fP
-
-\fI\fB
-
 \fBvoid png_set_error_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarning_fn\fP\fB);\fP

 \fI\fB
@@ -538,6 +538,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0

 \fI\fB

+\fBvoid png_set_chunk_malloc_max (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIuser_chunk_cache_max\fP\fB);\fP
+
+\fI\fB
+
 \fBvoid png_set_mem_fn(png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP

 \fI\fB
@@ -574,6 +578,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0

 \fI\fB

+\fBvoid png_set_quantize (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_quantize\fP\fB);\fP
+
+\fI\fB
+
 \fBvoid png_set_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fIread_data_fn\fP\fB);\fP

 \fI\fB
@@ -777,7 +785,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.4.0 - January 3, 2010
+ libpng version 1.4.3 - June 26, 2010
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
 Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -788,7 +796,7 @@ libpng.txt - A description on how to use and modify libpng

 Based on:

- libpng versions 0.97, January 1998, through 1.4.0 - January 3, 2010
+ libpng versions 0.97, January 1998, through 1.4.3 - June 26, 2010
 Updated and distributed by Glenn Randers-Pehrson
 Copyright (c) 1998-2009 Glenn Randers-Pehrson

@@ -1018,9 +1026,13 @@ free any memory.
    }

 If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_SETJMP_NOT_SUPPORTED, in which case
+you can compile libpng with PNG_NO_SETJMP, in which case
 errors will result in a call to PNG_ABORT() which defaults to abort().

+You can #define PNG_ABORT() to a function that does something
+more useful than abort(), as long as your function does not
+return.
+
 Now you need to set up the input code.  The default for libpng is to
 use the C function fread().  If you use this, you will need to pass a
 valid FILE * in the function png_init_io().  Be sure that the file is
@@ -1037,6 +1049,15 @@ libpng know that there are some bytes missing from the start of the file.

    png_set_sig_bytes(png_ptr, number);

+You can change the zlib compression buffer size to be used while
+reading compressed data with
+
+    png_set_compression_buffer_size(png_ptr, buffer_size);
+
+where the default size is 8192 bytes.  Note that the buffer size
+is changed immediately and the buffer is reallocated immediately,
+instead of setting a flag to be acted upon later.
+
 .SS Setting up callback code

 You can set up a callback function to handle any unknown chunks in the
@@ -1200,6 +1221,18 @@ where 0x7fffffffL means unlimited.  You can retrieve this limit with
 This limit also applies to the number of buffers that can be allocated
 by png_decompress_chunk() while decompressing iTXt, zTXt, and iCCP chunks.

+You can also set a limit on the amount of memory that a compressed chunk
+other than IDAT can occupy, with
+
+   png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max);
+
+and you can retrieve the limit with
+
+   chunk_malloc_max = png_get_chunk_malloc_max(png_ptr);
+
+Any chunks that would cause either of these limits to be exceeded will
+be ignored.
+
 .SS The high-level read interface

 At this point there are two ways to proceed; through the high-level
@@ -1231,7 +1264,7 @@ you want to do are limited to the following set:
                                to RGB (or GA to RGBA)

 (This excludes setting a background color, doing gamma transformation,
-dithering, and setting filler.)  If this is the case, simply do this:
+quantizing, and setting filler.)  If this is the case, simply do this:

    png_read_png(png_ptr, info_ptr, png_transforms, NULL)

@@ -1655,7 +1688,7 @@ things.
 As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
 added.  It expands the sample depth without changing tRNS to alpha.

-As of libpng version 1.4.0, not all possible expansions are supported.
+As of libpng version 1.4.3, not all possible expansions are supported.

 In the following table, the 01 means grayscale with depth<8, 31 means
 indexed with depth<8, other numerals represent the color type, "T" means
@@ -1915,6 +1948,40 @@ recommended that PNG viewers support gamma correction.
   else
      png_set_gamma(png_ptr, screen_gamma, 0.45455);

+If you need to reduce an RGB file to a paletted file, or if a paletted
+file has more entries then will fit on your screen, png_set_quantize()
+will do that.  Note that this is a simple match dither that merely
+finds the closest color available.  This should work fairly well with
+optimized palettes, and fairly badly with linear color cubes.  If you
+pass a palette that is larger then maximum_colors, the file will
+reduce the number of colors in the palette so it will fit into
+maximum_colors.  If there is a histogram, it will use it to make
+more intelligent choices when reducing the palette.  If there is no
+histogram, it may not do as good a job.
+
+   if (color_type & PNG_COLOR_MASK_COLOR)
+   {
+      if (png_get_valid(png_ptr, info_ptr,
+         PNG_INFO_PLTE))
+      {
+         png_uint_16p histogram = NULL;
+
+         png_get_hIST(png_ptr, info_ptr,
+            &histogram);
+         png_set_quantize(png_ptr, palette, num_palette,
+            max_screen_colors, histogram, 1);
+      }
+      else
+      {
+         png_color std_color_cube[MAX_SCREEN_COLORS] =
+            { ... colors ... };
+
+         png_set_quantize(png_ptr, std_color_cube,
+            MAX_SCREEN_COLORS, MAX_SCREEN_COLORS,
+            NULL,0);
+      }
+   }
+
 PNG files describe monochrome as black being zero and white being one.
 The following code will reverse this (make black be one and white be
 zero):
@@ -2444,9 +2511,13 @@ section below for more information on the libpng error handling.
    return;

 If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_SETJMP_NOT_SUPPORTED, in which case
+you can compile libpng with PNG_NO_SETJMP, in which case
 errors will result in a call to PNG_ABORT() which defaults to abort().

+You can #define PNG_ABORT() to a function that does something
+more useful than abort(), as long as your function does not
+return.
+
 Now you need to set up the output code.  The default for libpng is to
 use the C function fwrite().  If you use this, you will need to pass a
 valid FILE * in the function png_init_io().  Be sure that the file is
@@ -3256,7 +3327,7 @@ via
 Your replacement memory functions must have prototypes as follows:

    png_voidp malloc_fn(png_structp png_ptr,
-       png_size_t size);
+       png_alloc_size_t size);
    void free_fn(png_structp png_ptr, png_voidp ptr);

 Your malloc_fn() must return NULL in case of failure.  The png_malloc()
@@ -3307,8 +3378,9 @@ Error handling in libpng is done through png_error() and png_warning().
 Errors handled through png_error() are fatal, meaning that png_error()
 should never return to its caller.  Currently, this is handled via
 setjmp() and longjmp() (unless you have compiled libpng with
-PNG_SETJMP_NOT_SUPPORTED, in which case it is handled via PNG_ABORT()),
-but you could change this to do things like exit() if you should wish.
+PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()),
+but you could change this to do things like exit() if you should wish,
+as long as your function does not return.

 On non-fatal errors, png_warning() is called
 to print a warning message, and then control returns to the calling code.
@@ -3840,6 +3912,8 @@ We changed the prototype for png_malloc() from
 to
    png_malloc(png_structp png_ptr, png_alloc_size_t size)

+This also applies to the prototype for the user replacement malloc_fn().
+
 The png_calloc() function was added and is used in place of
 of "png_malloc(); png_memset();" except in the case in png_read_png()
 where the array consists of pointers; in this case a "for" loop is used
@@ -3859,6 +3933,15 @@ The png_zalloc() and png_zfree() functions are no longer exported.
 The png_zalloc() function no longer zeroes out the memory that it
 allocates.

+Support for dithering was disabled by default in libpng-1.4.0, because
+been well tested and doesn't actually "dither".  The code was not
+removed, however, and could be enabled by building libpng with
+PNG_READ_DITHER_SUPPORTED defined.  In libpng-1.4.2, this support
+was reenabled, but the function was renamed png_set_quantize() to
+reflect more accurately what it actually does.  At the same time,
+the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to
+PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.
+
 We removed the trailing '.' from the warning and error messages.

 .SH X. Detecting libpng
@@ -3928,12 +4011,12 @@ the statement that follows the comment:
    /* Single-line comment */
    statement;

-    /* Multiple-line
-     * comment
+    /* This is a multiple-line
+     * comment.
     */
    statement;

-Very short comments can be placed at the end of the statement
+Very short comments can be placed after the end of the statement
 to which they pertain:

    statement;    /* comment */
@@ -3980,9 +4063,9 @@ macros begin with "PNG_".

 We put a space after each comma and after each semicolon
 in "for" statments, and we put spaces before and after each
-C binary operator and after "for" or "while".  We don't
-put a space between a typecast and the expression being
-cast, nor do we put one between a function name and the
+C binary operator and after "for" or "while", and before
+"?".  We don't put a space between a typecast and the expression
+being cast, nor do we put one between a function name and the
 left parenthesis that follows it:

    for (i = 2; i > 0; --i)
@@ -3999,13 +4082,13 @@ Other rules can be inferred by inspecting the libpng source.

 .SH XIII. Y2K Compliance in libpng

-January 3, 2010
+June 26, 2010

 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 1.4.0 are Y2K compliant.  It is my belief that earlier
+upward through 1.4.3 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
@@ -4178,6 +4261,17 @@ the first widely used release:
 1.4.0beta88-109     14    10400  14.so.14.0[.0]
 1.4.0rc02-08        14    10400  14.so.14.0[.0]
 1.4.0               14    10400  14.so.14.0[.0]
+ 1.4.1beta01-03      14    10401  14.so.14.1[.0]
+ 1.4.1rc01           14    10401  14.so.14.1[.0]
+ 1.4.1beta04-12      14    10401  14.so.14.1[.0]
+ 1.4.1rc02-04        14    10401  14.so.14.1[.0]
+ 1.4.1               14    10401  14.so.14.1[.0]
+ 1.4.2beta01         14    10402  14.so.14.2[.0]
+ 1.4.2rc02-06        14    10402  14.so.14.2[.0]
+ 1.4.2               14    10402  14.so.14.2[.0]
+ 1.4.3beta01-05      14    10403  14.so.14.3[.0]
+ 1.4.3rc01-03        14    10403  14.so.14.3[.0]
+ 1.4.3               14    10403  14.so.14.3[.0]

 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -4233,7 +4327,7 @@ possible without all of you.

 Thanks to Frank J. T. Wojcik for helping with the documentation.

-Libpng version 1.4.0 - January 3, 2010:
+Libpng version 1.4.3 - June 26, 2010:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).

@@ -4256,7 +4350,7 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.4.0, January 3, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.3, June 26, 2010, are
 Copyright (c) 2004,2006-2007 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
@@ -4355,7 +4449,7 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-January 3, 2010
+June 26, 2010

 .\" end of man page

--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "January 3, 2010"
+.TH LIBPNGPF 3 "June 26, 2010"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0
+libpng \- Portable Network Graphics (PNG) Reference Library 1.4.3
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
@@ -145,14 +145,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0

 \fI\fB

-\fI\fB
-
-\fBvoid png_do_dither (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIpalette_lookup\fP\fB, png_bytep \fIdither_lookup\fP\fB);\fP
-
-\fI\fB
-
-\fI\fB
-
 \fBvoid png_do_expand (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_16p \fItrans_value\fP\fB);\fP

 \fI\fB
@@ -195,6 +187,12 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0

 \fI\fB

+\fBvoid png_do_quantize (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIpalette_lookup\fP\fB, png_bytep \fIquantize_lookup\fP\fB);\fP
+
+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_read_filler (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, png_uint_32 \fIflags\fP\fB);\fP

 \fI\fB
--- a/new_push_process_row.c
+++ b/new_push_process_row.c
@@ -0,0 +1,204 @@
+void /* PRIVATE */
+png_push_process_row(png_structp png_ptr)
+{
+   png_ptr->row_info.color_type = png_ptr->color_type;
+   png_ptr->row_info.width = png_ptr->iwidth;
+   png_ptr->row_info.channels = png_ptr->channels;
+   png_ptr->row_info.bit_depth = png_ptr->bit_depth;
+   png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
+
+   png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
+       png_ptr->row_info.width);
+
+   png_read_filter_row(png_ptr, &(png_ptr->row_info),
+       png_ptr->row_buf + 1, png_ptr->prev_row + 1,
+       (int)(png_ptr->row_buf[0]));
+
+   png_memcpy(png_ptr->prev_row, png_ptr->row_buf, png_ptr->rowbytes + 1);
+
+   if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA))
+      png_do_read_transformations(png_ptr);
+
+#ifdef PNG_READ_INTERLACING_SUPPORTED
+   /* Blow up interlaced rows to full size */
+   if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
+   {
+      if (png_ptr->pass < 6)
+/*       old interface (pre-1.0.9):
+         png_do_read_interlace(&(png_ptr->row_info),
+             png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
+ */
+         png_do_read_interlace(png_ptr);
+
+    switch (png_ptr->pass)
+    {
+         case 0:
+         {
+            int i;
+            for (i = 0; i < 8 && png_ptr->pass == 0; i++)
+            {
+               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+               png_read_push_finish_row(png_ptr); /* Updates png_ptr->pass */
+            }
+
+            if (png_ptr->pass == 2) /* Pass 1 might be empty */
+            {
+               for (i = 0; i < 4 && png_ptr->pass == 2; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
+            }
+
+            if (png_ptr->pass == 4 && png_ptr->height <= 4)
+            {
+               for (i = 0; i < 2 && png_ptr->pass == 4; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
+            }
+
+            if (png_ptr->pass == 6 && png_ptr->height <= 4)
+            {
+                  png_push_have_row(png_ptr, NULL);
+                png_read_push_finish_row(png_ptr);
+            }
+
+            break;
+         }
+
+         case 1:
+         {
+            int i;
+            for (i = 0; i < 8 && png_ptr->pass == 1; i++)
+            {
+               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            if (png_ptr->pass == 2) /* Skip top 4 generated rows */
+            {
+               for (i = 0; i < 4 && png_ptr->pass == 2; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
+            }
+
+            break;
+         }
+
+         case 2:
+         {
+            int i;
+
+            for (i = 0; i < 4 && png_ptr->pass == 2; i++)
+            {
+               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            for (i = 0; i < 4 && png_ptr->pass == 2; i++)
+            {
+                  png_push_have_row(png_ptr, NULL);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            if (png_ptr->pass == 4) /* Pass 3 might be empty */
+            {
+               for (i = 0; i < 2 && png_ptr->pass == 4; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
+            }
+
+            break;
+         }
+
+         case 3:
+         {
+            int i;
+
+            for (i = 0; i < 4 && png_ptr->pass == 3; i++)
+            {
+               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            if (png_ptr->pass == 4) /* Skip top two generated rows */
+            {
+               for (i = 0; i < 2 && png_ptr->pass == 4; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
+            }
+
+            break;
+         }
+
+         case 4:
+         {
+            int i;
+
+            for (i = 0; i < 2 && png_ptr->pass == 4; i++)
+            {
+               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            for (i = 0; i < 2 && png_ptr->pass == 4; i++)
+            {
+                  png_push_have_row(png_ptr, NULL);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            if (png_ptr->pass == 6) /* Pass 5 might be empty */
+            {
+                  png_push_have_row(png_ptr, NULL);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            break;
+         }
+
+         case 5:
+         {
+            int i;
+
+            for (i = 0; i < 2 && png_ptr->pass == 5; i++)
+            {
+               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            if (png_ptr->pass == 6) /* Skip top generated row */
+            {
+                  png_push_have_row(png_ptr, NULL);
+               png_read_push_finish_row(png_ptr);
+            }
+
+            break;
+         }
+         case 6:
+         {
+            png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+            png_read_push_finish_row(png_ptr);
+
+            if (png_ptr->pass != 6)
+               break;
+
+                  png_push_have_row(png_ptr, NULL);
+            png_read_push_finish_row(png_ptr);
+         }
+      }
+   }
+   else
+#endif
+   {
+      png_push_have_row(png_ptr, png_ptr->row_buf + 1);
+      png_read_push_finish_row(png_ptr);
+   }
+}
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "January 3, 2010"
+.TH PNG 5 "June 26, 2010"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
--- a/png.c
+++ b/png.c
@@ -1,7 +1,7 @@

 /* png.c - location for general purpose libpng functions
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.2 [May 6, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -17,7 +17,7 @@
 #include "pngpriv.h"

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_4_0 Your_png_h_is_not_version_1_4_0;
+typedef version_1_4_3 Your_png_h_is_not_version_1_4_3;

 /* Version information for C files.  This had better match the version
 * string defined in png.h.
@@ -551,13 +551,13 @@ png_get_copyright(png_structp png_ptr)
 #else
 #ifdef __STDC__
   return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.4.0 - January 3, 2010" PNG_STRING_NEWLINE \
+     "libpng version 1.4.3 - June 26, 2010" PNG_STRING_NEWLINE \
     "Copyright (c) 1998-2010 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 ((png_charp) "libpng version 1.4.0 - January 3, 2010\
+      return ((png_charp) "libpng version 1.4.3 - June 26, 2010\
      Copyright (c) 1998-2010 Glenn Randers-Pehrson\
      Copyright (c) 1996-1997 Andreas Dilger\
      Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
@@ -622,7 +622,9 @@ png_handle_as_unknown(png_structp png_ptr, png_bytep chunk_name)
   return 0;
 }
 #endif
+#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */

+#ifdef PNG_READ_SUPPORTED
 /* This function, added to libpng-1.0.6g, is untested. */
 int PNGAPI
 png_reset_zstream(png_structp png_ptr)
@@ -631,7 +633,7 @@ png_reset_zstream(png_structp png_ptr)
      return Z_STREAM_ERROR;
   return (inflateReset(&png_ptr->zstream));
 }
-#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
+#endif /* PNG_READ_SUPPORTED */

 /* This function was added to libpng-1.0.7 */
 png_uint_32 PNGAPI
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@

 /* png.h - header file for PNG reference library
 *
- * libpng version 1.4.0 - January 3, 2010
+ * libpng version 1.4.3 - June 26, 2010
 * Copyright (c) 1998-2010 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 1.4.0 - January 3, 2010: Glenn
+ *  libpng versions 0.97, January 1998, through 1.4.3 - June 26, 2010: Glenn
 *  See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@@ -134,6 +134,17 @@
 *    1.4.0beta88-109         14    10400  14.so.14.0[.0]
 *    1.4.0rc02-08            14    10400  14.so.14.0[.0]
 *    1.4.0                   14    10400  14.so.14.0[.0]
+ *    1.4.1beta01-03          14    10401  14.so.14.1[.0]
+ *    1.4.1rc01               14    10401  14.so.14.1[.0]
+ *    1.4.1beta04-12          14    10401  14.so.14.1[.0]
+ *    1.4.1rc02-04            14    10401  14.so.14.1[.0]
+ *    1.4.1                   14    10401  14.so.14.1[.0]
+ *    1.4.2beta01             14    10402  14.so.14.2[.0]
+ *    1.4.2rc02-06            14    10402  14.so.14.2[.0]
+ *    1.4.2                   14    10402  14.so.14.2[.0]
+ *    1.4.3beta01-05          14    10403  14.so.14.3[.0]
+ *    1.4.3rc01-03            14    10403  14.so.14.3[.0]
+ *    1.4.3                   14    10403  14.so.14.3[.0]
 *
 *    Henceforth the source version will match the shared-library major
 *    and minor numbers; the shared-library major version number will be
@@ -165,7 +176,7 @@
 *
 * This code is released under the libpng license.
 *
- * libpng versions 1.2.6, August 15, 2004, through 1.4.0, January 3, 2010, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.4.3, June 26, 2010, are
 * Copyright (c) 2004, 2006-2010 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:
@@ -277,13 +288,13 @@
 * Y2K compliance in libpng:
 * =========================
 *
- *    January 3, 2010
+ *    June 26, 2010
 *
 *    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 1.4.0 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.4.3 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
@@ -339,9 +350,9 @@
 */

 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.4.0"
+#define PNG_LIBPNG_VER_STRING "1.4.3"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.4.0 - January 3, 2010\n"
+   " libpng version 1.4.3 - June 26, 2010\n"

 #define PNG_LIBPNG_VER_SONUM   14
 #define PNG_LIBPNG_VER_DLLNUM  14
@@ -349,7 +360,7 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   4
-#define PNG_LIBPNG_VER_RELEASE 0
+#define PNG_LIBPNG_VER_RELEASE 3
 /* This should match the numeric part of the final component of
 * PNG_LIBPNG_VER_STRING, omitting any leading zero:
 */
@@ -379,17 +390,13 @@
 * 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 10400 /* 1.4.0 */
+#define PNG_LIBPNG_VER 10403 /* 1.4.3 */

 #ifndef PNG_VERSION_INFO_ONLY
 /* Include the compression library's header */
 #include "zlib.h"
 #endif

-#ifdef AIX
-#define jmpbuf __jmpbuf
-#endif
-
 /* Include all user configurable info, including optional assembler routines */
 #include "pngconf.h"

@@ -629,25 +636,38 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp;
 typedef struct png_info_struct
 {
   /* the following are necessary for every PNG file */
-   png_uint_32 width PNG_DEPSTRUCT;       /* width of image in pixels (from IHDR) */
-   png_uint_32 height PNG_DEPSTRUCT;      /* height of image in pixels (from IHDR) */
-   png_uint_32 valid PNG_DEPSTRUCT;       /* valid chunk data (see PNG_INFO_ below) */
-   png_size_t rowbytes PNG_DEPSTRUCT;     /* bytes needed to hold an untransformed row */
-   png_colorp palette PNG_DEPSTRUCT;      /* array of color values (valid & PNG_INFO_PLTE) */
-   png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in "palette" (PLTE) */
-   png_uint_16 num_trans PNG_DEPSTRUCT;   /* number of transparent palette color (tRNS) */
-   png_byte bit_depth PNG_DEPSTRUCT;      /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */
-   png_byte color_type PNG_DEPSTRUCT;     /* see PNG_COLOR_TYPE_ below (from IHDR) */
+   png_uint_32 width PNG_DEPSTRUCT;  /* width of image in pixels (from IHDR) */
+   png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels (from IHDR) */
+   png_uint_32 valid PNG_DEPSTRUCT;  /* valid chunk data (see PNG_INFO_
+                                        below) */
+   png_size_t rowbytes PNG_DEPSTRUCT; /* bytes needed to hold an untransformed
+                                         row */
+   png_colorp palette PNG_DEPSTRUCT;      /* array of color values
+                                             (valid & PNG_INFO_PLTE) */
+   png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in
+                                             "palette" (PLTE) */
+   png_uint_16 num_trans PNG_DEPSTRUCT;   /* number of transparent palette
+                                             color (tRNS) */
+   png_byte bit_depth PNG_DEPSTRUCT;      /* 1, 2, 4, 8, or 16 bits/channel
+                                             (from IHDR) */
+   png_byte color_type PNG_DEPSTRUCT;     /* see PNG_COLOR_TYPE_ below
+                                             (from IHDR) */
   /* The following three should have been named *_method not *_type */
-   png_byte compression_type PNG_DEPSTRUCT; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */
-   png_byte filter_type PNG_DEPSTRUCT;    /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
-   png_byte interlace_type PNG_DEPSTRUCT; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
+   png_byte compression_type PNG_DEPSTRUCT; /* must be
+                                             PNG_COMPRESSION_TYPE_BASE (IHDR) */
+   png_byte filter_type PNG_DEPSTRUCT;    /* must be PNG_FILTER_TYPE_BASE
+                                             (from IHDR) */
+   png_byte interlace_type PNG_DEPSTRUCT; /* One of PNG_INTERLACE_NONE,
+                                             PNG_INTERLACE_ADAM7 */

   /* The following is informational only on read, and not used on writes. */
-   png_byte channels PNG_DEPSTRUCT;       /* number of data channels per pixel (1, 2, 3, 4) */
+   png_byte channels PNG_DEPSTRUCT;       /* number of data channels per
+                                             pixel (1, 2, 3, 4) */
   png_byte pixel_depth PNG_DEPSTRUCT;    /* number of bits per pixel */
-   png_byte spare_byte PNG_DEPSTRUCT;     /* to align the data, and for future use */
-   png_byte signature[8] PNG_DEPSTRUCT;   /* magic bytes read by libpng from start of file */
+   png_byte spare_byte PNG_DEPSTRUCT;     /* to align the data, and for
+                                             future use */
+   png_byte signature[8] PNG_DEPSTRUCT;   /* magic bytes read by libpng
+                                             from start of file */

   /* The rest of the data is optional.  If you are reading, check the
    * valid field to see if the information in these are valid.  If you
@@ -660,13 +680,15 @@ typedef struct png_info_struct
    * on which the image was created, normally in the range [1.0, 2.5].
    * Data is valid if (valid & PNG_INFO_gAMA) is non-zero.
    */
-   float gamma PNG_DEPSTRUCT; /* gamma value of image, if (valid & PNG_INFO_gAMA) */
+   float gamma PNG_DEPSTRUCT; /* gamma value of image,
+                                 if (valid & PNG_INFO_gAMA) */
 #endif

 #ifdef PNG_sRGB_SUPPORTED
    /* GR-P, 0.96a */
    /* Data valid if (valid & PNG_INFO_sRGB) non-zero. */
-   png_byte srgb_intent PNG_DEPSTRUCT; /* sRGB rendering intent [0, 1, 2, or 3] */
+   png_byte srgb_intent PNG_DEPSTRUCT; /* sRGB rendering intent
+                                          [0, 1, 2, or 3] */
 #endif

 #ifdef PNG_TEXT_SUPPORTED
@@ -711,8 +733,10 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
    * single color specified that should be treated as fully transparent.
    * Data is valid if (valid & PNG_INFO_tRNS) is non-zero.
    */
-   png_bytep trans_alpha PNG_DEPSTRUCT;    /* alpha values for paletted image */
-   png_color_16 trans_color PNG_DEPSTRUCT; /* transparent color for non-palette image */
+   png_bytep trans_alpha PNG_DEPSTRUCT;    /* alpha values for paletted
+                                              image */
+   png_color_16 trans_color PNG_DEPSTRUCT; /* transparent color for
+                                              non-palette image */
 #endif

 #if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
@@ -743,7 +767,8 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
    */
   png_uint_32 x_pixels_per_unit PNG_DEPSTRUCT; /* horizontal pixel density */
   png_uint_32 y_pixels_per_unit PNG_DEPSTRUCT; /* vertical pixel density */
-   png_byte phys_unit_type PNG_DEPSTRUCT; /* resolution type (see PNG_RESOLUTION_ below) */
+   png_byte phys_unit_type PNG_DEPSTRUCT; /* resolution type (see
+                                             PNG_RESOLUTION_ below) */
 #endif

 #ifdef PNG_hIST_SUPPORTED
@@ -790,14 +815,19 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
   png_charp pcal_purpose PNG_DEPSTRUCT;  /* pCAL chunk description string */
   png_int_32 pcal_X0 PNG_DEPSTRUCT;      /* minimum value */
   png_int_32 pcal_X1 PNG_DEPSTRUCT;      /* maximum value */
-   png_charp pcal_units PNG_DEPSTRUCT;    /* Latin-1 string giving physical units */
-   png_charpp pcal_params PNG_DEPSTRUCT;  /* ASCII strings containing parameter values */
-   png_byte pcal_type PNG_DEPSTRUCT;      /* equation type (see PNG_EQUATION_ below) */
-   png_byte pcal_nparams PNG_DEPSTRUCT;   /* number of parameters given in pcal_params */
+   png_charp pcal_units PNG_DEPSTRUCT;    /* Latin-1 string giving physical
+                                             units */
+   png_charpp pcal_params PNG_DEPSTRUCT;  /* ASCII strings containing
+                                             parameter values */
+   png_byte pcal_type PNG_DEPSTRUCT;      /* equation type
+                                             (see PNG_EQUATION_ below) */
+   png_byte pcal_nparams PNG_DEPSTRUCT;   /* number of parameters given
+                                             in pcal_params */
 #endif

 /* New members added in libpng-1.0.6 */
-   png_uint_32 free_me PNG_DEPSTRUCT;     /* flags items libpng is responsible for freeing */
+   png_uint_32 free_me PNG_DEPSTRUCT;     /* flags items libpng is
+                                             responsible for freeing */

 #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
 defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
@@ -809,7 +839,8 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
 #ifdef PNG_iCCP_SUPPORTED
   /* iCCP chunk data. */
   png_charp iccp_name PNG_DEPSTRUCT;     /* profile name */
-   png_charp iccp_profile PNG_DEPSTRUCT;  /* International Color Consortium profile data */
+   png_charp iccp_profile PNG_DEPSTRUCT;  /* International Color Consortium
+                                             profile data */
                            /* Note to maintainer: should be png_bytep */
   png_uint_32 iccp_proflen PNG_DEPSTRUCT;  /* ICC profile data length */
   png_byte iccp_compression PNG_DEPSTRUCT; /* Always zero */
@@ -841,13 +872,15 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
 #endif

 #ifdef PNG_INFO_IMAGE_SUPPORTED
-   /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) non-zero */
+   /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS)
+      non-zero */
   /* Data valid if (valid & PNG_INFO_IDAT) non-zero */
   png_bytepp row_pointers PNG_DEPSTRUCT;        /* the image bits */
 #endif

 #if defined(PNG_FIXED_POINT_SUPPORTED) && defined(PNG_gAMA_SUPPORTED)
-   png_fixed_point int_gamma PNG_DEPSTRUCT; /* gamma of image, if (valid & PNG_INFO_gAMA) */
+   png_fixed_point int_gamma PNG_DEPSTRUCT; /* gamma of image,
+                                               if (valid & PNG_INFO_gAMA) */
 #endif

 #if defined(PNG_cHRM_SUPPORTED) && defined(PNG_FIXED_POINT_SUPPORTED)
@@ -994,7 +1027,8 @@ typedef void (PNGAPI *png_write_status_ptr) PNGARG((png_structp, png_uint_32,
   int));

 #ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, png_infop));
+typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp,
+   png_infop));
 typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop));
 typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep,
   png_uint_32, int));
@@ -1007,7 +1041,8 @@ typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp,
 #endif

 #ifdef PNG_USER_CHUNKS_SUPPORTED
-typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp));
+typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp,
+   png_unknown_chunkp));
 #endif
 #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
 typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp));
@@ -1059,83 +1094,128 @@ struct png_struct_def
 {
 #ifdef PNG_SETJMP_SUPPORTED
   jmp_buf jmpbuf PNG_DEPSTRUCT;            /* used in png_error */
-   png_longjmp_ptr longjmp_fn PNG_DEPSTRUCT;/* setjmp non-local goto function. */
+   png_longjmp_ptr longjmp_fn PNG_DEPSTRUCT;/* setjmp non-local goto
+                                               function. */
 #endif
-   png_error_ptr error_fn PNG_DEPSTRUCT;    /* function for printing errors and aborting */
-   png_error_ptr warning_fn PNG_DEPSTRUCT;  /* function for printing warnings */
-   png_voidp error_ptr PNG_DEPSTRUCT;       /* user supplied struct for error functions */
-   png_rw_ptr write_data_fn PNG_DEPSTRUCT;  /* function for writing output data */
-   png_rw_ptr read_data_fn PNG_DEPSTRUCT;   /* function for reading input data */
-   png_voidp io_ptr PNG_DEPSTRUCT;          /* ptr to application struct for I/O functions */
+   png_error_ptr error_fn PNG_DEPSTRUCT;    /* function for printing
+                                               errors and aborting */
+   png_error_ptr warning_fn PNG_DEPSTRUCT;  /* function for printing
+                                               warnings */
+   png_voidp error_ptr PNG_DEPSTRUCT;       /* user supplied struct for
+                                               error functions */
+   png_rw_ptr write_data_fn PNG_DEPSTRUCT;  /* function for writing
+                                               output data */
+   png_rw_ptr read_data_fn PNG_DEPSTRUCT;   /* function for reading
+                                               input data */
+   png_voidp io_ptr PNG_DEPSTRUCT;          /* ptr to application struct
+                                               for I/O functions */

 #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-   png_user_transform_ptr read_user_transform_fn PNG_DEPSTRUCT; /* user read transform */
+   png_user_transform_ptr read_user_transform_fn PNG_DEPSTRUCT; /* user read
+                                                                 transform */
 #endif

 #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-   png_user_transform_ptr write_user_transform_fn PNG_DEPSTRUCT; /* user write transform */
+   png_user_transform_ptr write_user_transform_fn PNG_DEPSTRUCT; /* user write
+                                                                  transform */
 #endif

 /* These were added in libpng-1.0.2 */
 #ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
    defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-   png_voidp user_transform_ptr PNG_DEPSTRUCT; /* user supplied struct for user transform */
-   png_byte user_transform_depth PNG_DEPSTRUCT;    /* bit depth of user transformed pixels */
-   png_byte user_transform_channels PNG_DEPSTRUCT; /* channels in user transformed pixels */
+   png_voidp user_transform_ptr PNG_DEPSTRUCT; /* user supplied struct
+                                                  for user transform */
+   png_byte user_transform_depth PNG_DEPSTRUCT;    /* bit depth of user
+                                                      transformed pixels */
+   png_byte user_transform_channels PNG_DEPSTRUCT; /* channels in user
+                                                      transformed pixels */
 #endif
 #endif

-   png_uint_32 mode PNG_DEPSTRUCT;          /* tells us where we are in the PNG file */
-   png_uint_32 flags PNG_DEPSTRUCT;         /* flags indicating various things to libpng */
-   png_uint_32 transformations PNG_DEPSTRUCT; /* which transformations to perform */
+   png_uint_32 mode PNG_DEPSTRUCT;          /* tells us where we are in
+                                               the PNG file */
+   png_uint_32 flags PNG_DEPSTRUCT;         /* flags indicating various
+                                               things to libpng */
+   png_uint_32 transformations PNG_DEPSTRUCT; /* which transformations
+                                                 to perform */

-   z_stream zstream PNG_DEPSTRUCT;          /* pointer to decompression structure (below) */
+   z_stream zstream PNG_DEPSTRUCT;          /* pointer to decompression
+                                               structure (below) */
   png_bytep zbuf PNG_DEPSTRUCT;            /* buffer for zlib */
   png_size_t zbuf_size PNG_DEPSTRUCT;      /* size of zbuf */
   int zlib_level PNG_DEPSTRUCT;            /* holds zlib compression level */
   int zlib_method PNG_DEPSTRUCT;           /* holds zlib compression method */
-   int zlib_window_bits PNG_DEPSTRUCT;      /* holds zlib compression window bits */
-   int zlib_mem_level PNG_DEPSTRUCT;        /* holds zlib compression memory level */
-   int zlib_strategy PNG_DEPSTRUCT;         /* holds zlib compression strategy */
+   int zlib_window_bits PNG_DEPSTRUCT;      /* holds zlib compression window
+                                               bits */
+   int zlib_mem_level PNG_DEPSTRUCT;        /* holds zlib compression memory
+                                               level */
+   int zlib_strategy PNG_DEPSTRUCT;         /* holds zlib compression
+                                               strategy */

   png_uint_32 width PNG_DEPSTRUCT;         /* width of image in pixels */
   png_uint_32 height PNG_DEPSTRUCT;        /* height of image in pixels */
   png_uint_32 num_rows PNG_DEPSTRUCT;      /* number of rows in current pass */
   png_uint_32 usr_width PNG_DEPSTRUCT;     /* width of row at start of write */
   png_size_t rowbytes PNG_DEPSTRUCT;       /* size of row in bytes */
-   png_size_t irowbytes PNG_DEPSTRUCT;      /* size of current interlaced row in bytes */
-   png_uint_32 iwidth PNG_DEPSTRUCT;        /* width of current interlaced row in pixels */
+#if 0 /* Replaced with the following in libpng-1.4.1 */
+   png_size_t irowbytes PNG_DEPSTRUCT;
+#endif
+/* Added in libpng-1.4.1 */
+#ifdef PNG_USER_LIMITS_SUPPORTED
+   /* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk
+    * can occupy when decompressed.  0 means unlimited.
+    * We will change the typedef from png_size_t to png_alloc_size_t
+    * in libpng-1.6.0
+    */
+   png_alloc_size_t user_chunk_malloc_max PNG_DEPSTRUCT;
+#endif
+   png_uint_32 iwidth PNG_DEPSTRUCT;        /* width of current interlaced
+                                               row in pixels */
   png_uint_32 row_number PNG_DEPSTRUCT;    /* current row in interlace pass */
-   png_bytep prev_row PNG_DEPSTRUCT;        /* buffer to save previous (unfiltered) row */
-   png_bytep row_buf PNG_DEPSTRUCT;         /* buffer to save current (unfiltered) row */
-   png_bytep sub_row PNG_DEPSTRUCT;         /* buffer to save "sub" row when filtering */
-   png_bytep up_row PNG_DEPSTRUCT;          /* buffer to save "up" row when filtering */
-   png_bytep avg_row PNG_DEPSTRUCT;         /* buffer to save "avg" row when filtering */
-   png_bytep paeth_row PNG_DEPSTRUCT;       /* buffer to save "Paeth" row when filtering */
-   png_row_info row_info PNG_DEPSTRUCT;     /* used for transformation routines */
+   png_bytep prev_row PNG_DEPSTRUCT;        /* buffer to save previous
+                                               (unfiltered) row */
+   png_bytep row_buf PNG_DEPSTRUCT;         /* buffer to save current
+                                               (unfiltered) row */
+   png_bytep sub_row PNG_DEPSTRUCT;         /* buffer to save "sub" row
+                                               when filtering */
+   png_bytep up_row PNG_DEPSTRUCT;          /* buffer to save "up" row
+                                               when filtering */
+   png_bytep avg_row PNG_DEPSTRUCT;         /* buffer to save "avg" row
+                                               when filtering */
+   png_bytep paeth_row PNG_DEPSTRUCT;       /* buffer to save "Paeth" row
+                                               when filtering */
+   png_row_info row_info PNG_DEPSTRUCT;     /* used for transformation
+                                               routines */

   png_uint_32 idat_size PNG_DEPSTRUCT;     /* current IDAT size for read */
   png_uint_32 crc PNG_DEPSTRUCT;           /* current chunk CRC value */
   png_colorp palette PNG_DEPSTRUCT;        /* palette from the input file */
-   png_uint_16 num_palette PNG_DEPSTRUCT;   /* number of color entries in palette */
+   png_uint_16 num_palette PNG_DEPSTRUCT;   /* number of color entries in
+                                               palette */
   png_uint_16 num_trans PNG_DEPSTRUCT;     /* number of transparency values */
-   png_byte chunk_name[5] PNG_DEPSTRUCT;    /* null-terminated name of current chunk */
-   png_byte compression PNG_DEPSTRUCT;      /* file compression type (always 0) */
+   png_byte chunk_name[5] PNG_DEPSTRUCT;    /* null-terminated name of current
+                                               chunk */
+   png_byte compression PNG_DEPSTRUCT;      /* file compression type
+                                               (always 0) */
   png_byte filter PNG_DEPSTRUCT;           /* file filter type (always 0) */
-   png_byte interlaced PNG_DEPSTRUCT;       /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
+   png_byte interlaced PNG_DEPSTRUCT;       /* PNG_INTERLACE_NONE,
+                                               PNG_INTERLACE_ADAM7 */
   png_byte pass PNG_DEPSTRUCT;             /* current interlace pass (0 - 6) */
-   png_byte do_filter PNG_DEPSTRUCT;        /* row filter flags (see PNG_FILTER_ below ) */
+   png_byte do_filter PNG_DEPSTRUCT;        /* row filter flags (see
+                                               PNG_FILTER_ below ) */
   png_byte color_type PNG_DEPSTRUCT;       /* color type of file */
   png_byte bit_depth PNG_DEPSTRUCT;        /* bit depth of file */
   png_byte usr_bit_depth PNG_DEPSTRUCT;    /* bit depth of users row */
   png_byte pixel_depth PNG_DEPSTRUCT;      /* number of bits per pixel */
   png_byte channels PNG_DEPSTRUCT;         /* number of channels in file */
   png_byte usr_channels PNG_DEPSTRUCT;     /* channels at start of write */
-   png_byte sig_bytes PNG_DEPSTRUCT;        /* magic bytes read/written from start of file */
+   png_byte sig_bytes PNG_DEPSTRUCT;        /* magic bytes read/written from
+                                               start of file */

 #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
-   png_uint_16 filler PNG_DEPSTRUCT;           /* filler bytes for pixel expansion */
+   png_uint_16 filler PNG_DEPSTRUCT;           /* filler bytes for pixel
+                                                  expansion */
 #endif

 #ifdef PNG_bKGD_SUPPORTED
@@ -1143,73 +1223,108 @@ struct png_struct_def
 #  ifdef PNG_FLOATING_POINT_SUPPORTED
   float background_gamma PNG_DEPSTRUCT;
 #  endif
-   png_color_16 background PNG_DEPSTRUCT;   /* background color in screen gamma space */
+   png_color_16 background PNG_DEPSTRUCT;   /* background color in
+                                               screen gamma space */
 #ifdef PNG_READ_GAMMA_SUPPORTED
-   png_color_16 background_1 PNG_DEPSTRUCT; /* background normalized to gamma 1.0 */
+   png_color_16 background_1 PNG_DEPSTRUCT; /* background normalized
+                                               to gamma 1.0 */
 #endif
 #endif /* PNG_bKGD_SUPPORTED */

 #ifdef PNG_WRITE_FLUSH_SUPPORTED
-   png_flush_ptr output_flush_fn PNG_DEPSTRUCT; /* Function for flushing output */
-   png_uint_32 flush_dist PNG_DEPSTRUCT;    /* how many rows apart to flush, 0 - no flush */
-   png_uint_32 flush_rows PNG_DEPSTRUCT;    /* number of rows written since last flush */
+   png_flush_ptr output_flush_fn PNG_DEPSTRUCT; /* Function for flushing
+                                               output */
+   png_uint_32 flush_dist PNG_DEPSTRUCT;    /* how many rows apart to flush,
+                                               0 - no flush */
+   png_uint_32 flush_rows PNG_DEPSTRUCT;    /* number of rows written since
+                                               last flush */
 #endif

 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
-   int gamma_shift PNG_DEPSTRUCT;      /* number of "insignificant" bits 16-bit gamma */
+   int gamma_shift PNG_DEPSTRUCT;      /* number of "insignificant" bits
+                                          16-bit gamma */
 #ifdef PNG_FLOATING_POINT_SUPPORTED
   float gamma PNG_DEPSTRUCT;          /* file gamma value */
-   float screen_gamma PNG_DEPSTRUCT;   /* screen gamma value (display_exponent) */
+   float screen_gamma PNG_DEPSTRUCT;   /* screen gamma value
+                                          (display_exponent) */
 #endif
 #endif

 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
-   png_bytep gamma_table PNG_DEPSTRUCT;     /* gamma table for 8-bit depth files */
+   png_bytep gamma_table PNG_DEPSTRUCT;     /* gamma table for 8-bit
+                                               depth files */
   png_bytep gamma_from_1 PNG_DEPSTRUCT;    /* converts from 1.0 to screen */
   png_bytep gamma_to_1 PNG_DEPSTRUCT;      /* converts from file to 1.0 */
-   png_uint_16pp gamma_16_table PNG_DEPSTRUCT; /* gamma table for 16-bit depth files */
-   png_uint_16pp gamma_16_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to screen */
+   png_uint_16pp gamma_16_table PNG_DEPSTRUCT; /* gamma table for 16-bit
+                                                  depth files */
+   png_uint_16pp gamma_16_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to
+                                                   screen */
   png_uint_16pp gamma_16_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */
 #endif

 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED)
-   png_color_8 sig_bit PNG_DEPSTRUCT;       /* significant bits in each available channel */
+   png_color_8 sig_bit PNG_DEPSTRUCT;       /* significant bits in each
+                                               available channel */
 #endif

 #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
-   png_color_8 shift PNG_DEPSTRUCT;         /* shift for significant bit tranformation */
+   png_color_8 shift PNG_DEPSTRUCT;         /* shift for significant bit
+                                               tranformation */
 #endif

 #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \
 || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
-   png_bytep trans_alpha PNG_DEPSTRUCT;           /* alpha values for paletted files */
-   png_color_16 trans_color PNG_DEPSTRUCT;  /* transparent color for non-paletted files */
+   png_bytep trans_alpha PNG_DEPSTRUCT;           /* alpha values for
+                                                     paletted files */
+   png_color_16 trans_color PNG_DEPSTRUCT;  /* transparent color for
+                                               non-paletted files */
 #endif

-   png_read_status_ptr read_row_fn PNG_DEPSTRUCT;   /* called after each row is decoded */
-   png_write_status_ptr write_row_fn PNG_DEPSTRUCT; /* called after each row is encoded */
+   png_read_status_ptr read_row_fn PNG_DEPSTRUCT;   /* called after each
+                                                       row is decoded */
+   png_write_status_ptr write_row_fn PNG_DEPSTRUCT; /* called after each
+                                                       row is encoded */
 #ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-   png_progressive_info_ptr info_fn PNG_DEPSTRUCT; /* called after header data fully read */
-   png_progressive_row_ptr row_fn PNG_DEPSTRUCT;   /* called after each prog. row is decoded */
-   png_progressive_end_ptr end_fn PNG_DEPSTRUCT;   /* called after image is complete */
-   png_bytep save_buffer_ptr PNG_DEPSTRUCT;        /* current location in save_buffer */
-   png_bytep save_buffer PNG_DEPSTRUCT;            /* buffer for previously read data */
-   png_bytep current_buffer_ptr PNG_DEPSTRUCT;     /* current location in current_buffer */
-   png_bytep current_buffer PNG_DEPSTRUCT;         /* buffer for recently used data */
-   png_uint_32 push_length PNG_DEPSTRUCT;          /* size of current input chunk */
-   png_uint_32 skip_length PNG_DEPSTRUCT;          /* bytes to skip in input data */
-   png_size_t save_buffer_size PNG_DEPSTRUCT;      /* amount of data now in save_buffer */
-   png_size_t save_buffer_max PNG_DEPSTRUCT;       /* total size of save_buffer */
-   png_size_t buffer_size PNG_DEPSTRUCT;           /* total amount of available input data */
-   png_size_t current_buffer_size PNG_DEPSTRUCT;   /* amount of data now in current_buffer */
-   int process_mode PNG_DEPSTRUCT;                 /* what push library is currently doing */
-   int cur_palette PNG_DEPSTRUCT;                  /* current push library palette index */
+   png_progressive_info_ptr info_fn PNG_DEPSTRUCT; /* called after header
+                                                      data fully read */
+   png_progressive_row_ptr row_fn PNG_DEPSTRUCT;   /* called after each
+                                                      prog. row is decoded */
+   png_progressive_end_ptr end_fn PNG_DEPSTRUCT;   /* called after image
+                                                      is complete */
+   png_bytep save_buffer_ptr PNG_DEPSTRUCT;        /* current location in
+                                                      save_buffer */
+   png_bytep save_buffer PNG_DEPSTRUCT;            /* buffer for previously
+                                                      read data */
+   png_bytep current_buffer_ptr PNG_DEPSTRUCT;     /* current location in
+                                                      current_buffer */
+   png_bytep current_buffer PNG_DEPSTRUCT;         /* buffer for recently
+                                                      used data */
+   png_uint_32 push_length PNG_DEPSTRUCT;          /* size of current input
+                                                      chunk */
+   png_uint_32 skip_length PNG_DEPSTRUCT;          /* bytes to skip in
+                                                      input data */
+   png_size_t save_buffer_size PNG_DEPSTRUCT;      /* amount of data now
+                                                      in save_buffer */
+   png_size_t save_buffer_max PNG_DEPSTRUCT;       /* total size of
+                                                      save_buffer */
+   png_size_t buffer_size PNG_DEPSTRUCT;           /* total amount of
+                                                      available input data */
+   png_size_t current_buffer_size PNG_DEPSTRUCT;   /* amount of data now
+                                                      in current_buffer */
+   int process_mode PNG_DEPSTRUCT;                 /* what push library
+                                                      is currently doing */
+   int cur_palette PNG_DEPSTRUCT;                  /* current push library
+                                                      palette index */

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

 #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
@@ -1223,36 +1338,46 @@ struct png_struct_def
   png_uint_16 offset_table_count_free PNG_DEPSTRUCT;
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
-   png_bytep palette_lookup PNG_DEPSTRUCT;         /* lookup table for dithering */
-   png_bytep dither_index PNG_DEPSTRUCT;           /* index translation for palette files */
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+   png_bytep palette_lookup PNG_DEPSTRUCT; /* lookup table for quantizing */
+   png_bytep quantize_index PNG_DEPSTRUCT; /* index translation for palette
+                                              files */
 #endif

-#if defined(PNG_READ_DITHER_SUPPORTED) || defined(PNG_hIST_SUPPORTED)
+#if defined(PNG_READ_QUANTIZE_SUPPORTED) || defined(PNG_hIST_SUPPORTED)
   png_uint_16p hist PNG_DEPSTRUCT;                /* histogram */
 #endif

 #ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
-   png_byte heuristic_method PNG_DEPSTRUCT;        /* heuristic for row filter selection */
-   png_byte num_prev_filters PNG_DEPSTRUCT;        /* number of weights for previous rows */
-   png_bytep prev_filters PNG_DEPSTRUCT;           /* filter type(s) of previous row(s) */
-   png_uint_16p filter_weights PNG_DEPSTRUCT;      /* weight(s) for previous line(s) */
-   png_uint_16p inv_filter_weights PNG_DEPSTRUCT;  /* 1/weight(s) for previous line(s) */
-   png_uint_16p filter_costs PNG_DEPSTRUCT;        /* relative filter calculation cost */
-   png_uint_16p inv_filter_costs PNG_DEPSTRUCT;    /* 1/relative filter calculation cost */
+   png_byte heuristic_method PNG_DEPSTRUCT;        /* heuristic for row
+                                                      filter selection */
+   png_byte num_prev_filters PNG_DEPSTRUCT;        /* number of weights
+                                                      for previous rows */
+   png_bytep prev_filters PNG_DEPSTRUCT;           /* filter type(s) of
+                                                      previous row(s) */
+   png_uint_16p filter_weights PNG_DEPSTRUCT;      /* weight(s) for previous
+                                                      line(s) */
+   png_uint_16p inv_filter_weights PNG_DEPSTRUCT;  /* 1/weight(s) for
+                                                      previous line(s) */
+   png_uint_16p filter_costs PNG_DEPSTRUCT;        /* relative filter
+                                                      calculation cost */
+   png_uint_16p inv_filter_costs PNG_DEPSTRUCT;    /* 1/relative filter
+                                                      calculation cost */
 #endif

 #ifdef PNG_TIME_RFC1123_SUPPORTED
-   png_charp time_buffer PNG_DEPSTRUCT;            /* String to hold RFC 1123 time text */
+   png_charp time_buffer PNG_DEPSTRUCT; /* String to hold RFC 1123 time text */
 #endif

 /* New members added in libpng-1.0.6 */

-   png_uint_32 free_me PNG_DEPSTRUCT;     /* flags items libpng is responsible for freeing */
+   png_uint_32 free_me PNG_DEPSTRUCT;    /* flags items libpng is
+                                            responsible for freeing */

 #ifdef PNG_USER_CHUNKS_SUPPORTED
   png_voidp user_chunk_ptr PNG_DEPSTRUCT;
-   png_user_chunk_ptr read_user_chunk_fn PNG_DEPSTRUCT; /* user read chunk handler */
+   png_user_chunk_ptr read_user_chunk_fn PNG_DEPSTRUCT; /* user read
+                                                           chunk handler */
 #endif

 #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
@@ -1291,31 +1416,37 @@ struct png_struct_def

 /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
 #ifdef PNG_USER_MEM_SUPPORTED
-   png_voidp mem_ptr PNG_DEPSTRUCT;                /* user supplied struct for mem functions */
-   png_malloc_ptr malloc_fn PNG_DEPSTRUCT;         /* function for allocating memory */
-   png_free_ptr free_fn PNG_DEPSTRUCT;             /* function for freeing memory */
+   png_voidp mem_ptr PNG_DEPSTRUCT;             /* user supplied struct for
+                                                   mem functions */
+   png_malloc_ptr malloc_fn PNG_DEPSTRUCT;      /* function for
+                                                   allocating memory */
+   png_free_ptr free_fn PNG_DEPSTRUCT;          /* function for
+                                                   freeing memory */
 #endif

 /* New member added in libpng-1.0.13 and 1.2.0 */
-   png_bytep big_row_buf PNG_DEPSTRUCT;         /* buffer to save current (unfiltered) row */
+   png_bytep big_row_buf PNG_DEPSTRUCT;         /* buffer to save current
+                                                   (unfiltered) row */

-#ifdef PNG_READ_DITHER_SUPPORTED
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
 /* The following three members were added at version 1.0.14 and 1.2.4 */
-   png_bytep dither_sort PNG_DEPSTRUCT;            /* working sort array */
-   png_bytep index_to_palette PNG_DEPSTRUCT;       /* where the original index currently is */
-                                     /* in the palette */
-   png_bytep palette_to_index PNG_DEPSTRUCT;       /* which original index points to this */
-                                     /* palette color */
+   png_bytep quantize_sort PNG_DEPSTRUCT;          /* working sort array */
+   png_bytep index_to_palette PNG_DEPSTRUCT;       /* where the original
+                                                     index currently is
+                                                     in the palette */
+   png_bytep palette_to_index PNG_DEPSTRUCT;       /* which original index
+                                                      points to this
+                                                      palette color */
 #endif

 /* New members added in libpng-1.0.16 and 1.2.6 */
   png_byte compression_type PNG_DEPSTRUCT;

-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED
   png_uint_32 user_width_max PNG_DEPSTRUCT;
   png_uint_32 user_height_max PNG_DEPSTRUCT;
   /* Added in libpng-1.4.0: Total number of sPLT, text, and unknown
-    * chunks that can be stored (0x7fffffff means unlimited).
+    * chunks that can be stored (0 means unlimited).
    */
   png_uint_32 user_chunk_cache_max PNG_DEPSTRUCT;
 #endif
@@ -1333,8 +1464,8 @@ struct png_struct_def
 /* New member added in libpng-1.2.30 */
  png_charp chunkdata PNG_DEPSTRUCT;  /* buffer for reading chunk data */

-/* New member added in libpng-1.4.0 */
 #ifdef PNG_IO_STATE_SUPPORTED
+/* New member added in libpng-1.4.0 */
   png_uint_32 io_state PNG_DEPSTRUCT;
 #endif
 };
@@ -1343,7 +1474,7 @@ struct png_struct_def
 /* This triggers a compiler error in png.c, if png.c and png.h
 * do not agree upon the version number.
 */
-typedef png_structp version_1_4_0;
+typedef png_structp version_1_4_3;

 typedef png_struct FAR * FAR * png_structpp;

@@ -1370,6 +1501,11 @@ extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr,
 extern PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start,
   png_size_t num_to_check));

+/* Simple signature checking function.  This is the same as calling
+ * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n).
+ */
+#define png_check_sig(sig,n) !png_sig_cmp((sig), 0, (n))
+
 /* Allocate and initialize png_ptr struct for reading, and any other memory. */
 extern PNG_EXPORT(png_structp,png_create_read_struct)
   PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
@@ -1380,15 +1516,11 @@ extern PNG_EXPORT(png_structp,png_create_write_struct)
   PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
   png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED;

-#ifdef PNG_WRITE_SUPPORTED
 extern PNG_EXPORT(png_size_t,png_get_compression_buffer_size)
   PNGARG((png_structp png_ptr));
-#endif

-#ifdef PNG_WRITE_SUPPORTED
 extern PNG_EXPORT(void,png_set_compression_buffer_size)
   PNGARG((png_structp png_ptr, png_size_t size));
-#endif

 /* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp
 * match up.
@@ -1402,7 +1534,8 @@ extern PNG_EXPORT(void,png_set_compression_buffer_size)
 * indicating an ABI mismatch.
 */
 extern PNG_EXPORT(jmp_buf*, png_set_longjmp_fn)
-   PNGARG((png_structp png_ptr, png_longjmp_ptr longjmp_fn, size_t jmp_buf_size));
+   PNGARG((png_structp png_ptr, png_longjmp_ptr longjmp_fn, size_t
+       jmp_buf_size));
 #  define png_jmpbuf(png_ptr) \
   (*png_set_longjmp_fn((png_ptr), longjmp, sizeof (jmp_buf)))
 #else
@@ -1410,8 +1543,10 @@ extern PNG_EXPORT(jmp_buf*, png_set_longjmp_fn)
   (LIBPNG_WAS_COMPILED_WITH__PNG_NO_SETJMP)
 #endif

+#ifdef PNG_READ_SUPPORTED
 /* Reset the compression stream */
 extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr));
+#endif

 /* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */
 #ifdef PNG_USER_MEM_SUPPORTED
@@ -1547,7 +1682,8 @@ extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr));
 extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr));
 #endif

-#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED)
+#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \
+    defined(PNG_WRITE_PACKSWAP_SUPPORTED)
 /* Swap packing order of pixels in bytes. */
 extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr));
 #endif
@@ -1587,12 +1723,16 @@ extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr,
 extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr));
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
-/* Turn on dithering, and reduce the palette to the number of colors available. */
-extern PNG_EXPORT(void,png_set_dither) PNGARG((png_structp png_ptr,
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+/* Turn on quantizing, and reduce the palette to the number of colors
+ * available.  Prior to libpng-1.4.2, this was png_set_dither().
+ */
+extern PNG_EXPORT(void,png_set_quantize) PNGARG((png_structp png_ptr,
   png_colorp palette, int num_palette, int maximum_colors,
-   png_uint_16p histogram, int full_dither));
+   png_uint_16p histogram, int full_quantize));
 #endif
+/* This migration aid will be removed from libpng-1.5.0 */
+#define png_set_dither png_set_quantize

 #ifdef PNG_READ_GAMMA_SUPPORTED
 /* Handle gamma correction. Screen_gamma=(display_exponent) */
@@ -1805,7 +1945,8 @@ extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr,

 #ifdef PNG_STDIO_SUPPORTED
 /* Initialize the input/output for the PNG file to the default functions. */
-extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp));
+extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr,
+    png_FILE_p fp));
 #endif

 /* Replace the (error and abort), and warning functions with user
@@ -2362,7 +2503,8 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,

 extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr));
 extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr));
+extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp
+    png_ptr));
 extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));

 #ifdef PNG_MNG_FEATURES_SUPPORTED
@@ -2397,6 +2539,11 @@ extern PNG_EXPORT(void,png_set_chunk_cache_max) PNGARG((png_structp
   png_ptr, png_uint_32 user_chunk_cache_max));
 extern PNG_EXPORT(png_uint_32,png_get_chunk_cache_max)
   PNGARG((png_structp png_ptr));
+/* Added in libpng-1.4.1 */
+extern PNG_EXPORT(void,png_set_chunk_malloc_max) PNGARG((png_structp
+   png_ptr, png_alloc_size_t user_chunk_cache_max));
+extern PNG_EXPORT(png_alloc_size_t,png_get_chunk_malloc_max)
+   PNGARG((png_structp png_ptr));
 #endif

 #if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED)
@@ -2459,16 +2606,18 @@ extern PNG_EXPORT(png_bytep,png_get_io_chunk_name)

 /* fg and bg should be in `gamma 1.0' space; alpha is the opacity          */

-#  define png_composite(composite, fg, alpha, bg)                            \
-     { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) * (png_uint_16)(alpha) \
-                        +        (png_uint_16)(bg)*(png_uint_16)(255 -       \
-                        (png_uint_16)(alpha)) + (png_uint_16)128);           \
+#  define png_composite(composite, fg, alpha, bg)         \
+     { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) \
+           * (png_uint_16)(alpha)                         \
+           + (png_uint_16)(bg)*(png_uint_16)(255          \
+           - (png_uint_16)(alpha)) + (png_uint_16)128);   \
       (composite) = (png_byte)((temp + (temp >> 8)) >> 8); }

-#  define png_composite_16(composite, fg, alpha, bg)                         \
-     { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) * (png_uint_32)(alpha) \
-                        + (png_uint_32)(bg)*(png_uint_32)(65535L -           \
-                        (png_uint_32)(alpha)) + (png_uint_32)32768L);        \
+#  define png_composite_16(composite, fg, alpha, bg)       \
+     { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg)  \
+           * (png_uint_32)(alpha)                          \
+           + (png_uint_32)(bg)*(png_uint_32)(65535L        \
+           - (png_uint_32)(alpha)) + (png_uint_32)32768L); \
       (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); }

 #else  /* Standard method using integer division */
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@

 /* pngconf.h - machine configurable file for libpng
 *
- * libpng version 1.4.0 - January 3, 2010
+ * libpng version 1.4.3 - June 26, 2010
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -28,7 +28,9 @@

 /* Added at libpng-1.2.9 */

-/* config.h is created by and PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
+/* config.h is created by and PNG_CONFIGURE_LIBPNG is set by the "configure"
+ * script.
+ */
 #ifdef PNG_CONFIGURE_LIBPNG
 #  ifdef HAVE_CONFIG_H
 #    include "config.h"
@@ -389,18 +391,32 @@

 /* Other defines for things like memory and the like can go here.  */

-/* This controls how fine the dithering gets.  As this allocates
+/* This controls how fine the quantizing gets.  As this allocates
 * a largish chunk of memory (32K), those who are not as concerned
- * with dithering quality can decrease some or all of these.
+ * with quantizing quality can decrease some or all of these.
 */
-#ifndef PNG_DITHER_RED_BITS
-#  define PNG_DITHER_RED_BITS 5
+
+/* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS
+ * These migration aids will be removed from libpng-1.5.0.
+ */
+#ifdef PNG_DITHER_RED_BITS
+#  define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS
 #endif
-#ifndef PNG_DITHER_GREEN_BITS
-#  define PNG_DITHER_GREEN_BITS 5
+#ifdef PNG_DITHER_GREEN_BITS
+#  define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS
 #endif
-#ifndef PNG_DITHER_BLUE_BITS
-#  define PNG_DITHER_BLUE_BITS 5
+#ifdef PNG_DITHER_BLUE_BITS
+#  define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS
+#endif
+
+#ifndef PNG_QUANTIZE_RED_BITS
+#  define PNG_QUANTIZE_RED_BITS 5
+#endif
+#ifndef PNG_QUANTIZE_GREEN_BITS
+#  define PNG_QUANTIZE_GREEN_BITS 5
+#endif
+#ifndef PNG_QUANTIZE_BLUE_BITS
+#  define PNG_QUANTIZE_BLUE_BITS 5
 #endif

 /* This controls how fine the gamma correction becomes when you
@@ -497,11 +513,12 @@
 #  ifndef PNG_NO_READ_INVERT
 #    define PNG_READ_INVERT_SUPPORTED
 #  endif
-#if 0 /* removed from libpng-1.4.0 */
-#  ifndef PNG_NO_READ_DITHER
-#    define PNG_READ_DITHER_SUPPORTED
+#  ifndef PNG_NO_READ_QUANTIZE
+     /* Prior to libpng-1.4.0 this was PNG_READ_DITHER_SUPPORTED */
+#    ifndef PNG_NO_READ_DITHER  /* This migration aid will be removed */
+#      define PNG_READ_QUANTIZE_SUPPORTED
+#    endif
 #  endif
-#endif /* 0 */
 #  ifndef PNG_NO_READ_BACKGROUND
 #    define PNG_READ_BACKGROUND_SUPPORTED
 #  endif
@@ -672,14 +689,29 @@
 #endif

 /* Added at libpng-1.2.6 */
-#ifndef PNG_SET_USER_LIMITS_SUPPORTED
-#  ifndef PNG_NO_SET_USER_LIMITS
+#ifndef PNG_NO_SET_USER_LIMITS
+#  ifndef PNG_SET_USER_LIMITS_SUPPORTED
 #    define PNG_SET_USER_LIMITS_SUPPORTED
+#  endif
+  /* Feature added at libpng-1.4.0, this flag added at 1.4.1 */
+#  ifndef PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
+#    define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
+#  endif
+  /* Feature added at libpng-1.4.1, this flag added at 1.4.1 */
+#  ifndef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
+#    define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
+#  endif
+#endif
+
+/* Added at libpng-1.2.43 */
+#ifndef PNG_USER_LIMITS_SUPPORTED
+#  ifndef PNG_NO_USER_LIMITS
+#    define PNG_USER_LIMITS_SUPPORTED
 #  endif
 #endif

 /* Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGs no matter
- * how large, set these limits to 0x7fffffffL
+ * how large, set these two limits to 0x7fffffffL
 */
 #ifndef PNG_USER_WIDTH_MAX
 #  define PNG_USER_WIDTH_MAX 1000000L
@@ -688,9 +720,16 @@
 #  define PNG_USER_HEIGHT_MAX 1000000L
 #endif

-/* Added at libpng-1.4.0 */
+/* Added at libpng-1.2.43.  To accept all valid PNGs no matter
+ * how large, set these two limits to 0.
+ */
 #ifndef PNG_USER_CHUNK_CACHE_MAX
-#  define PNG_USER_CHUNK_CACHE_MAX 0x7fffffffL
+#  define PNG_USER_CHUNK_CACHE_MAX 0
+#endif
+
+/* Added at libpng-1.2.43 */
+#ifndef PNG_USER_CHUNK_MALLOC_MAX
+#  define PNG_USER_CHUNK_MALLOC_MAX 0
 #endif

 /* Added at libpng-1.4.0 */
@@ -861,20 +900,22 @@
 #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */

 #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
-#  define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
+#  ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
+#    define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
+#  endif
 #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
 #    define PNG_UNKNOWN_CHUNKS_SUPPORTED
 #  endif
-#endif
-#if !defined(PNG_NO_READ_USER_CHUNKS) && \
-     defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
-#  define PNG_READ_USER_CHUNKS_SUPPORTED
-#  define PNG_USER_CHUNKS_SUPPORTED
-#  ifdef PNG_NO_READ_UNKNOWN_CHUNKS
-#    undef PNG_NO_READ_UNKNOWN_CHUNKS
+#  ifndef PNG_READ_USER_CHUNKS_SUPPORTED
+#    define PNG_READ_USER_CHUNKS_SUPPORTED
 #  endif
-#  ifdef PNG_NO_HANDLE_AS_UNKNOWN
-#    undef PNG_NO_HANDLE_AS_UNKNOWN
+#endif
+#ifndef PNG_NO_READ_USER_CHUNKS
+#  ifndef PNG_READ_USER_CHUNKS_SUPPORTED
+#    define PNG_READ_USER_CHUNKS_SUPPORTED
+#  endif
+#  ifndef PNG_USER_CHUNKS_SUPPORTED
+#    define PNG_USER_CHUNKS_SUPPORTED
 #  endif
 #endif
 #ifndef PNG_NO_HANDLE_AS_UNKNOWN
@@ -1016,8 +1057,10 @@

 #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */

-#if !defined(PNG_NO_WRITE_FILTER) && !defined(PNG_WRITE_FILTER_SUPPORTED)
-#  define PNG_WRITE_FILTER_SUPPORTED
+#ifndef PNG_NO_WRITE_FILTER
+#  ifndef PNG_WRITE_FILTER_SUPPORTED
+#    define PNG_WRITE_FILTER_SUPPORTED
+#  endif
 #endif

 #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
--- a/pngget.c
+++ b/pngget.c
@@ -1,7 +1,7 @@

 /* pngget.c - retrieval of values from info struct
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.2 [May 6, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -872,17 +872,16 @@ png_get_user_chunk_ptr(png_structp png_ptr)
 }
 #endif

-#ifdef PNG_WRITE_SUPPORTED
 png_size_t PNGAPI
 png_get_compression_buffer_size(png_structp png_ptr)
 {
   return (png_ptr ? png_ptr->zbuf_size : 0L);
 }
-#endif


 #ifdef PNG_SET_USER_LIMITS_SUPPORTED
-/* These functions were added to libpng 1.2.6 */
+/* These functions were added to libpng 1.2.6 and were enabled
+ * by default in libpng-1.4.0 */
 png_uint_32 PNGAPI
 png_get_user_width_max (png_structp png_ptr)
 {
@@ -897,11 +896,18 @@ png_get_user_height_max (png_structp png_ptr)
 png_uint_32 PNGAPI
 png_get_chunk_cache_max (png_structp png_ptr)
 {
-    return (png_ptr? png_ptr->user_chunk_cache_max? 0x7fffffffL :
-       png_ptr->user_chunk_cache_max - 1 : 0);
+    return (png_ptr? png_ptr->user_chunk_cache_max : 0);
+}
+/* This function was added to libpng 1.4.1 */
+png_alloc_size_t PNGAPI
+png_get_chunk_malloc_max (png_structp png_ptr)
+{
+    return (png_ptr?
+       png_ptr->user_chunk_malloc_max : 0);
 }
 #endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */

+/* These functions were added to libpng 1.4.0 */
 #ifdef PNG_IO_STATE_SUPPORTED
 png_uint_32 PNGAPI
 png_get_io_state (png_structp png_ptr)
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,7 +1,7 @@

 /* pngmem.c - stub functions for memory allocation
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.2 [May 6, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -201,7 +201,7 @@ png_malloc_default(png_structp png_ptr, png_alloc_size_t size)
            {
 #ifndef PNG_USER_MEM_SUPPORTED
               if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
-                  png_error(png_ptr, "Out Of Memory"); /* Note "O" and "M" */
+                  png_error(png_ptr, "Out Of Memory"); /* Note "O", "M" */
               else
                  png_warning(png_ptr, "Out Of Memory");
 #endif
@@ -229,7 +229,7 @@ png_malloc_default(png_structp png_ptr, png_alloc_size_t size)
            {
 #ifndef PNG_USER_MEM_SUPPORTED
               if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
-                  png_error(png_ptr, "Out Of memory"); /* Note "O" and "M" */
+                  png_error(png_ptr, "Out Of memory"); /* Note "O", "m" */
               else
                  png_warning(png_ptr, "Out Of memory");
 #endif
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,7 +1,7 @@

 /* pngpread.c - read a png file in push mode
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.3 [June 26, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -329,7 +329,9 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
      png_ptr->mode |= PNG_HAVE_IDAT;
      png_ptr->process_mode = PNG_READ_IDAT_MODE;
      png_push_have_info(png_ptr, info_ptr);
-      png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes;
+      png_ptr->zstream.avail_out =
+          (uInt) PNG_ROWBYTES(png_ptr->pixel_depth,
+          png_ptr->iwidth) + 1;
      png_ptr->zstream.next_out = png_ptr->row_buf;
      return;
   }
@@ -698,8 +700,13 @@ 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(png_ptr,
+      png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
         (png_size_t)new_max);
+      if (png_ptr->save_buffer == NULL)
+      {
+        png_free(png_ptr, old_buffer);
+        png_error(png_ptr, "Insufficient memory for save_buffer");
+      }
      png_memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size);
      png_free(png_ptr, old_buffer);
      png_ptr->save_buffer_max = new_max;
@@ -772,8 +779,7 @@ png_push_read_IDAT(png_structp png_ptr)

      png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size);

-      if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
-         png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size);
+      png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size);

      png_ptr->idat_size -= save_size;
      png_ptr->buffer_size -= save_size;
@@ -796,8 +802,8 @@ png_push_read_IDAT(png_structp png_ptr)
         save_size = png_ptr->current_buffer_size;

      png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
-      if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
-        png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size);
+
+      png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size);

      png_ptr->idat_size -= save_size;
      png_ptr->buffer_size -= save_size;
@@ -822,60 +828,101 @@ void /* PRIVATE */
 png_process_IDAT_data(png_structp png_ptr, png_bytep buffer,
   png_size_t buffer_length)
 {
-   int ret;
-
-   if ((png_ptr->flags & PNG_FLAG_ZLIB_FINISHED) && buffer_length)
-      png_benign_error(png_ptr, "Extra compression data");
+   /* The caller checks for a non-zero buffer length. */
+   if (!(buffer_length > 0) || buffer == NULL)
+      png_error(png_ptr, "No IDAT data (internal error)");

+   /* This routine must process all the data it has been given
+    * before returning, calling the row callback as required to
+    * handle the uncompressed results.
+    */
   png_ptr->zstream.next_in = buffer;
   png_ptr->zstream.avail_in = (uInt)buffer_length;
-   for (;;)
+
+   /* Keep going until the decompressed data is all processed
+    * or the stream marked as finished.
+    */
+   while (png_ptr->zstream.avail_in > 0 &&
+	  !(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
   {
-      ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH);
-      if (ret != Z_OK)
+      int ret;
+
+      /* We have data for zlib, but we must check that zlib
+       * has somewhere to put the results.  It doesn't matter
+       * if we don't expect any results -- it may be the input
+       * data is just the LZ end code.
+       */
+      if (!(png_ptr->zstream.avail_out > 0))
      {
-         if (ret == Z_STREAM_END)
-         {
-            if (png_ptr->zstream.avail_in)
-               png_benign_error(png_ptr, "Extra compressed data");
-
-            if (!(png_ptr->zstream.avail_out))
-            {
-               png_push_process_row(png_ptr);
-            }
-
-            png_ptr->mode |= PNG_AFTER_IDAT;
-            png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
-            break;
-         }
-         else if (ret == Z_BUF_ERROR)
-            break;
-
-         else
-            png_error(png_ptr, "Decompression Error");
-      }
-      if (!(png_ptr->zstream.avail_out))
-      {
-         if ((
-#ifdef PNG_READ_INTERLACING_SUPPORTED
-             png_ptr->interlaced && png_ptr->pass > 6) ||
-             (!png_ptr->interlaced &&
-#endif
-             png_ptr->row_number == png_ptr->num_rows))
-         {
-           if (png_ptr->zstream.avail_in)
-             png_warning(png_ptr, "Too much data in IDAT chunks");
-           png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
-           break;
-         }
-         png_push_process_row(png_ptr);
-         png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes;
+         png_ptr->zstream.avail_out =
+             (uInt) PNG_ROWBYTES(png_ptr->pixel_depth,
+             png_ptr->iwidth) + 1;
         png_ptr->zstream.next_out = png_ptr->row_buf;
      }

-      else
-         break;
+      /* Using Z_SYNC_FLUSH here means that an unterminated
+       * LZ stream can still be handled (a stream with a missing
+       * end code), otherwise (Z_NO_FLUSH) a future zlib
+       * implementation might defer output and, therefore,
+       * change the current behavior.  (See comments in inflate.c
+       * for why this doesn't happen at present with zlib 1.2.5.)
+       */
+      ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH);
+
+      /* Check for any failure before proceeding. */
+      if (ret != Z_OK && ret != Z_STREAM_END)
+      {
+	 /* Terminate the decompression. */
+	 png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
+
+         /* This may be a truncated stream (missing or
+	  * damaged end code).  Treat that as a warning.
+	  */
+         if (png_ptr->row_number >= png_ptr->num_rows ||
+	     png_ptr->pass > 6)
+	    png_warning(png_ptr, "Truncated compressed data in IDAT");
+	 else
+	    png_error(png_ptr, "Decompression error in IDAT");
+
+	 /* Skip the check on unprocessed input */
+         return;
+      }
+
+      /* Did inflate output any data? */
+      if (png_ptr->zstream.next_out != png_ptr->row_buf)
+      {
+	 /* Is this unexpected data after the last row?
+	  * If it is, artificially terminate the LZ output
+	  * here.
+	  */
+         if (png_ptr->row_number >= png_ptr->num_rows ||
+	     png_ptr->pass > 6)
+         {
+	    /* Extra data. */
+	    png_warning(png_ptr, "Extra compressed data in IDAT");
+            png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
+	    /* Do no more processing; skip the unprocessed
+	     * input check below.
+	     */
+            return;
+	 }
+
+	 /* Do we have a complete row? */
+	 if (png_ptr->zstream.avail_out == 0)
+	    png_push_process_row(png_ptr);
+      }
+
+      /* And check for the end of the stream. */
+      if (ret == Z_STREAM_END)
+	 png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
   }
+
+   /* All the data should have been processed, if anything
+    * is left at this point we have bytes of IDAT data
+    * after the zlib end code.
+    */
+   if (png_ptr->zstream.avail_in > 0)
+      png_warning(png_ptr, "Extra compression data");
 }

 void /* PRIVATE */
@@ -891,8 +938,8 @@ png_push_process_row(png_structp png_ptr)
       png_ptr->row_info.width);

   png_read_filter_row(png_ptr, &(png_ptr->row_info),
-      png_ptr->row_buf + 1, png_ptr->prev_row + 1,
-      (int)(png_ptr->row_buf[0]));
+       png_ptr->row_buf + 1, png_ptr->prev_row + 1,
+       (int)(png_ptr->row_buf[0]));

   png_memcpy(png_ptr->prev_row, png_ptr->row_buf, png_ptr->rowbytes + 1);

@@ -906,7 +953,7 @@ png_push_process_row(png_structp png_ptr)
      if (png_ptr->pass < 6)
 /*       old interface (pre-1.0.9):
         png_do_read_interlace(&(png_ptr->row_info),
-            png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
+             png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
 */
         png_do_read_interlace(png_ptr);

@@ -941,7 +988,7 @@ png_push_process_row(png_structp png_ptr)

            if (png_ptr->pass == 6 && png_ptr->height <= 4)
            {
-                png_push_have_row(png_ptr, NULL);
+                  png_push_have_row(png_ptr, NULL);
                png_read_push_finish_row(png_ptr);
            }

@@ -981,7 +1028,7 @@ png_push_process_row(png_structp png_ptr)

            for (i = 0; i < 4 && png_ptr->pass == 2; i++)
            {
-               png_push_have_row(png_ptr, NULL);
+                  png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
            }

@@ -1031,13 +1078,13 @@ png_push_process_row(png_structp png_ptr)

            for (i = 0; i < 2 && png_ptr->pass == 4; i++)
            {
-               png_push_have_row(png_ptr, NULL);
+                  png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
            }

            if (png_ptr->pass == 6) /* Pass 5 might be empty */
            {
-               png_push_have_row(png_ptr, NULL);
+                  png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
            }

@@ -1056,7 +1103,7 @@ png_push_process_row(png_structp png_ptr)

            if (png_ptr->pass == 6) /* Skip top generated row */
            {
-               png_push_have_row(png_ptr, NULL);
+                  png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
            }

@@ -1070,7 +1117,7 @@ png_push_process_row(png_structp png_ptr)
            if (png_ptr->pass != 6)
               break;

-            png_push_have_row(png_ptr, NULL);
+                  png_push_have_row(png_ptr, NULL);
            png_read_push_finish_row(png_ptr);
         }
      }
@@ -1134,9 +1181,6 @@ png_read_push_finish_row(png_structp png_ptr)
            png_pass_start[png_ptr->pass]) /
            png_pass_inc[png_ptr->pass];

-         png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,
-            png_ptr->iwidth) + 1;
-
         if (png_ptr->transformations & PNG_INTERLACE)
            break;

@@ -1385,7 +1429,7 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)

               tmp = text;
               text = (png_charp)png_malloc(png_ptr, text_size +
-                  (png_ptr->zbuf_size 
+                  (png_ptr->zbuf_size
                  - png_ptr->zstream.avail_out + 1));

               png_memcpy(text, tmp, text_size);
@@ -1607,7 +1651,7 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
      }
 #endif
      png_memcpy((png_charp)png_ptr->unknown_chunk.name,
-                 (png_charp)png_ptr->chunk_name, 
+                 (png_charp)png_ptr->chunk_name,
                 png_sizeof(png_ptr->unknown_chunk.name));
      png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name) - 1]
        = '\0';
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -1,7 +1,7 @@

 /* pngpriv.h - private declarations for use inside libpng
 *
- * libpng version 1.4.0 - January 3, 2010
+ * libpng version 1.4.3 - June 26, 2010
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2010 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -106,7 +106,7 @@
 #define PNG_SHIFT               0x0008
 #define PNG_SWAP_BYTES          0x0010
 #define PNG_INVERT_MONO         0x0020
-#define PNG_DITHER              0x0040
+#define PNG_QUANTIZE            0x0040 /* formerly PNG_DITHER */
 #define PNG_BACKGROUND          0x0080
 #define PNG_BACKGROUND_EXPAND   0x0100
                          /*    0x0200 unused */
@@ -351,8 +351,8 @@ PNG_EXTERN void png_write_IEND PNGARG((png_structp png_ptr));
 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));
+PNG_EXTERN void png_write_gAMA_fixed PNGARG((png_structp png_ptr,
+    png_fixed_point file_gamma));
 #endif
 #endif

@@ -556,7 +556,8 @@ PNG_EXTERN void png_do_strip_filler PNGARG((png_row_infop row_info,
 PNG_EXTERN void png_do_swap PNGARG((png_row_infop row_info, png_bytep row));
 #endif

-#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED)
+#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \
+    defined(PNG_WRITE_PACKSWAP_SUPPORTED)
 PNG_EXTERN void png_do_packswap PNGARG((png_row_infop row_info, png_bytep row));
 #endif

@@ -587,9 +588,9 @@ PNG_EXTERN void png_do_invert PNGARG((png_row_infop row_info, png_bytep row));
 PNG_EXTERN void png_do_chop PNGARG((png_row_infop row_info, png_bytep row));
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
-PNG_EXTERN void png_do_dither PNGARG((png_row_infop row_info,
-   png_bytep row, png_bytep palette_lookup, png_bytep dither_lookup));
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+PNG_EXTERN void png_do_quantize PNGARG((png_row_infop row_info,
+   png_bytep row, png_bytep palette_lookup, png_bytep quantize_lookup));

 #  ifdef PNG_CORRECT_PALETTE_SUPPORTED
 PNG_EXTERN void png_correct_palette PNGARG((png_structp png_ptr,
--- a/pngread.c
+++ b/pngread.c
@@ -1,7 +1,7 @@

 /* pngread.c - read a PNG file
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.1 [February 25, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -31,7 +31,9 @@ png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr,
      warn_fn, NULL, NULL, NULL));
 }

-/* Alternate create PNG structure for reading, and allocate any memory needed. */
+/* Alternate create PNG structure for reading, and allocate any memory
+ * needed.
+ */
 png_structp PNGAPI
 png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
   png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
@@ -65,11 +67,17 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
      return (NULL);

   /* Added at libpng-1.2.6 */
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED
   png_ptr->user_width_max = PNG_USER_WIDTH_MAX;
   png_ptr->user_height_max = PNG_USER_HEIGHT_MAX;
-   /* Added at libpng-1.4.0 */
+#  ifdef PNG_USER_CHUNK_CACHE_MAX
+   /* Added at libpng-1.2.43 and 1.4.0 */
   png_ptr->user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX;
+#  endif
+#  ifdef PNG_SET_USER_CHUNK_MALLOC_MAX
+   /* Added at libpng-1.2.43 and 1.4.1 */
+   png_ptr->user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX;
+#  endif
 #endif

 #ifdef PNG_SETJMP_SUPPORTED
@@ -477,7 +485,8 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
   if (png_ptr->transformations & PNG_FILLER)
      png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined");
 #endif
-#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && !defined(PNG_READ_PACKSWAP_SUPPORTED)
+#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \
+    !defined(PNG_READ_PACKSWAP_SUPPORTED)
   if (png_ptr->transformations & PNG_PACKSWAP)
      png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined");
 #endif
@@ -580,7 +589,9 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
      png_error(png_ptr, "Invalid attempt to read row data");

   png_ptr->zstream.next_out = png_ptr->row_buf;
-   png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes;
+   png_ptr->zstream.avail_out =
+       (uInt)(PNG_ROWBYTES(png_ptr->pixel_depth,
+       png_ptr->iwidth) + 1);
   do
   {
      if (!(png_ptr->zstream.avail_in))
@@ -1044,7 +1055,8 @@ png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,

 /* Free all memory used by the read (old method) */
 void /* PRIVATE */
-png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr)
+png_read_destroy(png_structp png_ptr, png_infop info_ptr,
+    png_infop end_info_ptr)
 {
 #ifdef PNG_SETJMP_SUPPORTED
   jmp_buf tmp_jmp;
@@ -1068,9 +1080,9 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
   png_free(png_ptr, png_ptr->big_row_buf);
   png_free(png_ptr, png_ptr->prev_row);
   png_free(png_ptr, png_ptr->chunkdata);
-#ifdef PNG_READ_DITHER_SUPPORTED
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
   png_free(png_ptr, png_ptr->palette_lookup);
-   png_free(png_ptr, png_ptr->dither_index);
+   png_free(png_ptr, png_ptr->quantize_index);
 #endif
 #ifdef PNG_READ_GAMMA_SUPPORTED
   png_free(png_ptr, png_ptr->gamma_table);
@@ -1245,7 +1257,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
         png_set_expand(png_ptr);
 #endif

-   /* We don't handle background color or gamma transformation or dithering.
+   /* We don't handle background color or gamma transformation or quantizing.
    */

 #ifdef PNG_READ_INVERT_SUPPORTED
--- a/pngrio.c
+++ b/pngrio.c
@@ -1,7 +1,7 @@

 /* pngrio.c - functions for data input
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.1 [February 25, 2010]
 * Copyright (c) 1998-2010 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.)
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,7 +1,7 @@

 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.2 [May 6, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -141,13 +141,13 @@ png_set_strip_alpha(png_structp png_ptr)
 }
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
-/* Dither file to 8 bit.  Supply a palette, the current number
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+/* Quantize file to 8 bit.  Supply a palette, the current number
 * of elements in the palette, the maximum number of elements
 * allowed, and a histogram if possible.  If the current number
 * of colors is greater then the maximum number, the palette will be
- * modified to fit in the maximum number.  "full_dither" indicates
- * whether we need a dithering cube set up for RGB images, or if we
+ * modified to fit in the maximum number.  "full_quantize" indicates
+ * whether we need a quantizeing cube set up for RGB images, or if we
 * simply are reducing the number of colors in a paletted image.
 */

@@ -161,24 +161,24 @@ typedef png_dsort FAR *       png_dsortp;
 typedef png_dsort FAR * FAR * png_dsortpp;

 void PNGAPI
-png_set_dither(png_structp png_ptr, png_colorp palette,
+png_set_quantize(png_structp png_ptr, png_colorp palette,
   int num_palette, int maximum_colors, png_uint_16p histogram,
-   int full_dither)
+   int full_quantize)
 {
-   png_debug(1, "in png_set_dither");
+   png_debug(1, "in png_set_quantize");

   if (png_ptr == NULL)
      return;
-   png_ptr->transformations |= PNG_DITHER;
+   png_ptr->transformations |= PNG_QUANTIZE;

-   if (!full_dither)
+   if (!full_quantize)
   {
      int i;

-      png_ptr->dither_index = (png_bytep)png_malloc(png_ptr,
+      png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr,
         (png_uint_32)(num_palette * png_sizeof(png_byte)));
      for (i = 0; i < num_palette; i++)
-         png_ptr->dither_index[i] = (png_byte)i;
+         png_ptr->quantize_index[i] = (png_byte)i;
   }

   if (num_palette > maximum_colors)
@@ -192,12 +192,12 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
         int i;

         /* Initialize an array to sort colors */
-         png_ptr->dither_sort = (png_bytep)png_malloc(png_ptr,
+         png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr,
            (png_uint_32)(num_palette * png_sizeof(png_byte)));

-         /* Initialize the dither_sort array */
+         /* Initialize the quantize_sort array */
         for (i = 0; i < num_palette; i++)
-            png_ptr->dither_sort[i] = (png_byte)i;
+            png_ptr->quantize_sort[i] = (png_byte)i;

         /* Find the least used palette entries by starting a
          * bubble sort, and running it until we have sorted
@@ -214,14 +214,14 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
            done = 1;
            for (j = 0; j < i; j++)
            {
-               if (histogram[png_ptr->dither_sort[j]]
-                   < histogram[png_ptr->dither_sort[j + 1]])
+               if (histogram[png_ptr->quantize_sort[j]]
+                   < histogram[png_ptr->quantize_sort[j + 1]])
               {
                  png_byte t;

-                  t = png_ptr->dither_sort[j];
-                  png_ptr->dither_sort[j] = png_ptr->dither_sort[j + 1];
-                  png_ptr->dither_sort[j + 1] = t;
+                  t = png_ptr->quantize_sort[j];
+                  png_ptr->quantize_sort[j] = png_ptr->quantize_sort[j + 1];
+                  png_ptr->quantize_sort[j + 1] = t;
                  done = 0;
               }
            }
@@ -230,7 +230,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
         }

         /* Swap the palette around, and set up a table, if necessary */
-         if (full_dither)
+         if (full_quantize)
         {
            int j = num_palette;

@@ -239,11 +239,11 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
             */
            for (i = 0; i < maximum_colors; i++)
            {
-               if ((int)png_ptr->dither_sort[i] >= maximum_colors)
+               if ((int)png_ptr->quantize_sort[i] >= maximum_colors)
               {
                  do
                     j--;
-                  while ((int)png_ptr->dither_sort[j] >= maximum_colors);
+                  while ((int)png_ptr->quantize_sort[j] >= maximum_colors);
                  palette[i] = palette[j];
               }
            }
@@ -258,32 +258,32 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
            for (i = 0; i < maximum_colors; i++)
            {
               /* Only move the colors we need to */
-               if ((int)png_ptr->dither_sort[i] >= maximum_colors)
+               if ((int)png_ptr->quantize_sort[i] >= maximum_colors)
               {
                  png_color tmp_color;

                  do
                     j--;
-                  while ((int)png_ptr->dither_sort[j] >= maximum_colors);
+                  while ((int)png_ptr->quantize_sort[j] >= maximum_colors);

                  tmp_color = palette[j];
                  palette[j] = palette[i];
                  palette[i] = tmp_color;
                  /* Indicate where the color went */
-                  png_ptr->dither_index[j] = (png_byte)i;
-                  png_ptr->dither_index[i] = (png_byte)j;
+                  png_ptr->quantize_index[j] = (png_byte)i;
+                  png_ptr->quantize_index[i] = (png_byte)j;
               }
            }

            /* Find closest color for those colors we are not using */
            for (i = 0; i < num_palette; i++)
            {
-               if ((int)png_ptr->dither_index[i] >= maximum_colors)
+               if ((int)png_ptr->quantize_index[i] >= maximum_colors)
               {
                  int min_d, k, min_k, d_index;

                  /* Find the closest color to one we threw out */
-                  d_index = png_ptr->dither_index[i];
+                  d_index = png_ptr->quantize_index[i];
                  min_d = PNG_COLOR_DIST(palette[d_index], palette[0]);
                  for (k = 1, min_k = 0; k < maximum_colors; k++)
                  {
@@ -298,12 +298,12 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
                     }
                  }
                  /* Point to closest color */
-                  png_ptr->dither_index[i] = (png_byte)min_k;
+                  png_ptr->quantize_index[i] = (png_byte)min_k;
               }
            }
         }
-         png_free(png_ptr, png_ptr->dither_sort);
-         png_ptr->dither_sort = NULL;
+         png_free(png_ptr, png_ptr->quantize_sort);
+         png_ptr->quantize_sort = NULL;
      }
      else
      {
@@ -410,19 +410,19 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
                        num_new_palette--;
                        palette[png_ptr->index_to_palette[j]]
                          = palette[num_new_palette];
-                        if (!full_dither)
+                        if (!full_quantize)
                        {
                           int k;

                           for (k = 0; k < num_palette; k++)
                           {
-                              if (png_ptr->dither_index[k] ==
+                              if (png_ptr->quantize_index[k] ==
                                 png_ptr->index_to_palette[j])
-                                 png_ptr->dither_index[k] =
+                                 png_ptr->quantize_index[k] =
                                    png_ptr->index_to_palette[next_j];
-                              if ((int)png_ptr->dither_index[k] ==
+                              if ((int)png_ptr->quantize_index[k] ==
                                 num_new_palette)
-                                 png_ptr->dither_index[k] =
+                                 png_ptr->quantize_index[k] =
                                    png_ptr->index_to_palette[j];
                           }
                        }
@@ -432,8 +432,10 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
                        png_ptr->palette_to_index[png_ptr->index_to_palette[j]]
                           = png_ptr->palette_to_index[num_new_palette];

-                        png_ptr->index_to_palette[j] = (png_byte)num_new_palette;
-                        png_ptr->palette_to_index[num_new_palette] = (png_byte)j;
+                        png_ptr->index_to_palette[j] =
+                            (png_byte)num_new_palette;
+                        png_ptr->palette_to_index[num_new_palette] =
+                            (png_byte)j;
                     }
                     if (num_new_palette <= maximum_colors)
                        break;
@@ -473,15 +475,15 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
   }
   png_ptr->num_palette = (png_uint_16)num_palette;

-   if (full_dither)
+   if (full_quantize)
   {
      int i;
      png_bytep distance;
-      int total_bits = PNG_DITHER_RED_BITS + PNG_DITHER_GREEN_BITS +
-         PNG_DITHER_BLUE_BITS;
-      int num_red = (1 << PNG_DITHER_RED_BITS);
-      int num_green = (1 << PNG_DITHER_GREEN_BITS);
-      int num_blue = (1 << PNG_DITHER_BLUE_BITS);
+      int total_bits = PNG_QUANTIZE_RED_BITS + PNG_QUANTIZE_GREEN_BITS +
+         PNG_QUANTIZE_BLUE_BITS;
+      int num_red = (1 << PNG_QUANTIZE_RED_BITS);
+      int num_green = (1 << PNG_QUANTIZE_GREEN_BITS);
+      int num_blue = (1 << PNG_QUANTIZE_BLUE_BITS);
      png_size_t num_entries = ((png_size_t)1 << total_bits);

      png_ptr->palette_lookup = (png_bytep )png_calloc(png_ptr,
@@ -494,15 +496,16 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
      for (i = 0; i < num_palette; i++)
      {
         int ir, ig, ib;
-         int r = (palette[i].red >> (8 - PNG_DITHER_RED_BITS));
-         int g = (palette[i].green >> (8 - PNG_DITHER_GREEN_BITS));
-         int b = (palette[i].blue >> (8 - PNG_DITHER_BLUE_BITS));
+         int r = (palette[i].red >> (8 - PNG_QUANTIZE_RED_BITS));
+         int g = (palette[i].green >> (8 - PNG_QUANTIZE_GREEN_BITS));
+         int b = (palette[i].blue >> (8 - PNG_QUANTIZE_BLUE_BITS));

         for (ir = 0; ir < num_red; ir++)
         {
            /* int dr = abs(ir - r); */
            int dr = ((ir > r) ? ir - r : r - ir);
-            int index_r = (ir << (PNG_DITHER_BLUE_BITS + PNG_DITHER_GREEN_BITS));
+            int index_r = (ir << (PNG_QUANTIZE_BLUE_BITS +
+                PNG_QUANTIZE_GREEN_BITS));

            for (ig = 0; ig < num_green; ig++)
            {
@@ -510,7 +513,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
               int dg = ((ig > g) ? ig - g : g - ig);
               int dt = dr + dg;
               int dm = ((dr > dg) ? dr : dg);
-               int index_g = index_r | (ig << PNG_DITHER_BLUE_BITS);
+               int index_g = index_r | (ig << PNG_QUANTIZE_BLUE_BITS);

               for (ib = 0; ib < num_blue; ib++)
               {
@@ -533,7 +536,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
      png_free(png_ptr, distance);
   }
 }
-#endif
+#endif /* PNG_READ_QUANTIZE_SUPPORTED */

 #if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED)
 /* Transform the image from the file_gamma to the screen_gamma.  We
@@ -747,8 +750,9 @@ png_init_read_transformations(png_structp png_ptr)
   png_debug(1, "in png_init_read_transformations");

  {
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) || defined(PNG_READ_SHIFT_SUPPORTED) \
- || defined(PNG_READ_GAMMA_SUPPORTED)
+#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
+    defined(PNG_READ_SHIFT_SUPPORTED) || \
+    defined(PNG_READ_GAMMA_SUPPORTED)
   int color_type = png_ptr->color_type;
 #endif

@@ -945,7 +949,8 @@ png_init_read_transformations(png_structp png_ptr)
                  back.red = (png_byte)(pow(
                     (double)png_ptr->background.red/255.0, gs) * 255.0 + .5);
                  back.green = (png_byte)(pow(
-                     (double)png_ptr->background.green/255.0, gs) * 255.0 + .5);
+                     (double)png_ptr->background.green/255.0, gs) * 255.0
+                         + .5);
                  back.blue = (png_byte)(pow(
                     (double)png_ptr->background.blue/255.0, gs) * 255.0 + .5);
               }
@@ -1224,8 +1229,8 @@ png_read_transform_info(png_structp png_ptr, png_infop info_ptr)
      info_ptr->color_type &= ~PNG_COLOR_MASK_COLOR;
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
-   if (png_ptr->transformations & PNG_DITHER)
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+   if (png_ptr->transformations & PNG_QUANTIZE)
   {
      if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
          (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) &&
@@ -1357,7 +1362,8 @@ png_do_read_transformations(png_structp png_ptr)
   if (png_ptr->transformations & PNG_RGB_TO_GRAY)
   {
      int rgb_error =
-         png_do_rgb_to_gray(png_ptr, &(png_ptr->row_info), png_ptr->row_buf + 1);
+         png_do_rgb_to_gray(png_ptr, &(png_ptr->row_info),
+             png_ptr->row_buf + 1);
      if (rgb_error)
      {
         png_ptr->rgb_to_gray_status=1;
@@ -1445,13 +1451,13 @@ png_do_read_transformations(png_structp png_ptr)
      png_do_chop(&(png_ptr->row_info), png_ptr->row_buf + 1);
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
-   if (png_ptr->transformations & PNG_DITHER)
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+   if (png_ptr->transformations & PNG_QUANTIZE)
   {
-      png_do_dither((png_row_infop)&(png_ptr->row_info), png_ptr->row_buf + 1,
-         png_ptr->palette_lookup, png_ptr->dither_index);
+      png_do_quantize((png_row_infop)&(png_ptr->row_info), png_ptr->row_buf + 1,
+         png_ptr->palette_lookup, png_ptr->quantize_index);
      if (png_ptr->row_info.rowbytes == (png_uint_32)0)
-         png_error(png_ptr, "png_do_dither returned rowbytes=0");
+         png_error(png_ptr, "png_do_quantize returned rowbytes=0");
   }
 #endif

@@ -2343,7 +2349,8 @@ png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row)
                  {
                     png_uint_16 red_1   = png_ptr->gamma_16_to_1[(red&0xff) >>
                                  png_ptr->gamma_shift][red>>8];
-                     png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >>
+                     png_uint_16 green_1 =
+                         png_ptr->gamma_16_to_1[(green&0xff) >>
                                  png_ptr->gamma_shift][green>>8];
                     png_uint_16 blue_1  = png_ptr->gamma_16_to_1[(blue&0xff) >>
                                  png_ptr->gamma_shift][blue>>8];
@@ -2439,13 +2446,14 @@ png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row)
                  else
                  {
                     png_uint_16 red_1   = png_ptr->gamma_16_to_1[(red&0xff) >>
-                                  png_ptr->gamma_shift][red>>8];
-                     png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >>
-                                  png_ptr->gamma_shift][green>>8];
+                         png_ptr->gamma_shift][red>>8];
+                     png_uint_16 green_1 =
+                         png_ptr->gamma_16_to_1[(green&0xff) >>
+                         png_ptr->gamma_shift][green>>8];
                     png_uint_16 blue_1  = png_ptr->gamma_16_to_1[(blue&0xff) >>
-                                  png_ptr->gamma_shift][blue>>8];
+                         png_ptr->gamma_shift][blue>>8];
                     png_uint_16 gray16  = (png_uint_16)((rc * red_1
-                                  + gc * green_1 + bc * blue_1)>>15);
+                         + gc * green_1 + bc * blue_1)>>15);
                     w = png_ptr->gamma_16_from_1[(gray16&0xff) >>
                         png_ptr->gamma_shift][gray16 >> 8];
                     rgb_error |= 1;
@@ -3375,10 +3383,10 @@ png_do_gamma(png_row_infop row_info, png_bytep row,
                  int d = *sp & 0x03;

                  *sp = (png_byte)(
-                        ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)])   ) & 0xc0)|
-                        ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)|
-                        ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)|
-                        ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) ));
+                      ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)])   ) & 0xc0)|
+                      ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)|
+                      ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)|
+                      ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) ));
                  sp++;
               }
            }
@@ -3392,7 +3400,7 @@ png_do_gamma(png_row_infop row_info, png_bytep row,
                  int lsb = *sp & 0x0f;

                  *sp = (png_byte)((((int)gamma_table[msb | (msb >> 4)]) & 0xf0)
-                          | (((int)gamma_table[(lsb << 4) | lsb]) >> 4));
+                      | (((int)gamma_table[(lsb << 4) | lsb]) >> 4));
                  sp++;
               }
            }
@@ -3782,16 +3790,16 @@ png_do_expand(png_row_infop row_info, png_bytep row,
 }
 #endif

-#ifdef PNG_READ_DITHER_SUPPORTED
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
 void /* PRIVATE */
-png_do_dither(png_row_infop row_info, png_bytep row,
-    png_bytep palette_lookup, png_bytep dither_lookup)
+png_do_quantize(png_row_infop row_info, png_bytep row,
+    png_bytep palette_lookup, png_bytep quantize_lookup)
 {
   png_bytep sp, dp;
   png_uint_32 i;
   png_uint_32 row_width=row_info->width;

-   png_debug(1, "in png_do_dither");
+   png_debug(1, "in png_do_quantize");

   {
      if (row_info->color_type == PNG_COLOR_TYPE_RGB &&
@@ -3813,14 +3821,14 @@ png_do_dither(png_row_infop row_info, png_bytep row,
             *    (((g >> 3) & 0x1f) << 5) |
             *    ((b >> 3) & 0x1f);
             */
-            p = (((r >> (8 - PNG_DITHER_RED_BITS)) &
-               ((1 << PNG_DITHER_RED_BITS) - 1)) <<
-               (PNG_DITHER_GREEN_BITS + PNG_DITHER_BLUE_BITS)) |
-               (((g >> (8 - PNG_DITHER_GREEN_BITS)) &
-               ((1 << PNG_DITHER_GREEN_BITS) - 1)) <<
-               (PNG_DITHER_BLUE_BITS)) |
-               ((b >> (8 - PNG_DITHER_BLUE_BITS)) &
-               ((1 << PNG_DITHER_BLUE_BITS) - 1));
+            p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) &
+               ((1 << PNG_QUANTIZE_RED_BITS) - 1)) <<
+               (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) |
+               (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) &
+               ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) <<
+               (PNG_QUANTIZE_BLUE_BITS)) |
+               ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) &
+               ((1 << PNG_QUANTIZE_BLUE_BITS) - 1));

            *dp++ = palette_lookup[p];
         }
@@ -3842,14 +3850,14 @@ png_do_dither(png_row_infop row_info, png_bytep row,
            b = *sp++;
            sp++;

-            p = (((r >> (8 - PNG_DITHER_RED_BITS)) &
-               ((1 << PNG_DITHER_RED_BITS) - 1)) <<
-               (PNG_DITHER_GREEN_BITS + PNG_DITHER_BLUE_BITS)) |
-               (((g >> (8 - PNG_DITHER_GREEN_BITS)) &
-               ((1 << PNG_DITHER_GREEN_BITS) - 1)) <<
-               (PNG_DITHER_BLUE_BITS)) |
-               ((b >> (8 - PNG_DITHER_BLUE_BITS)) &
-               ((1 << PNG_DITHER_BLUE_BITS) - 1));
+            p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) &
+               ((1 << PNG_QUANTIZE_RED_BITS) - 1)) <<
+               (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) |
+               (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) &
+               ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) <<
+               (PNG_QUANTIZE_BLUE_BITS)) |
+               ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) &
+               ((1 << PNG_QUANTIZE_BLUE_BITS) - 1));

            *dp++ = palette_lookup[p];
         }
@@ -3859,12 +3867,12 @@ png_do_dither(png_row_infop row_info, png_bytep row,
         row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
      }
      else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
-         dither_lookup && row_info->bit_depth == 8)
+         quantize_lookup && row_info->bit_depth == 8)
      {
         sp = row;
         for (i = 0; i < row_width; i++, sp++)
         {
-            *sp = dither_lookup[*sp];
+            *sp = quantize_lookup[*sp];
         }
      }
   }
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,7 +1,7 @@

 /* pngrutil.c - utilities to read a PNG file
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.3 [June 26, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -201,6 +201,97 @@ png_crc_error(png_structp png_ptr)

 #if defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) || \
    defined(PNG_READ_iCCP_SUPPORTED)
+static png_size_t
+png_inflate(png_structp png_ptr, const png_byte *data, png_size_t size,
+        png_bytep output, png_size_t output_size)
+{
+   png_size_t count = 0;
+
+   png_ptr->zstream.next_in = (png_bytep)data; /* const_cast: VALID */
+   png_ptr->zstream.avail_in = size;
+
+   while (1)
+   {
+      int ret, avail;
+
+      /* Reset the output buffer each time round - we empty it
+       * after every inflate call.
+       */
+      png_ptr->zstream.next_out = png_ptr->zbuf;
+      png_ptr->zstream.avail_out = png_ptr->zbuf_size;
+
+      ret = inflate(&png_ptr->zstream, Z_NO_FLUSH);
+      avail = png_ptr->zbuf_size - png_ptr->zstream.avail_out;
+
+      /* First copy/count any new output - but only if we didn't
+       * get an error code.
+       */
+      if ((ret == Z_OK || ret == Z_STREAM_END) && avail > 0)
+      {
+         if (output != 0 && output_size > count)
+         {
+            int copy = output_size - count;
+            if (avail < copy) copy = avail;
+            png_memcpy(output + count, png_ptr->zbuf, copy);
+         }
+         count += avail;
+      }
+
+      if (ret == Z_OK)
+         continue;
+
+      /* Termination conditions - always reset the zstream, it
+       * must be left in inflateInit state.
+       */
+      png_ptr->zstream.avail_in = 0;
+      inflateReset(&png_ptr->zstream);
+
+      if (ret == Z_STREAM_END)
+         return count; /* NOTE: may be zero. */
+
+      /* Now handle the error codes - the API always returns 0
+       * and the error message is dumped into the uncompressed
+       * buffer if available.
+       */
+      {
+         PNG_CONST char *msg;
+         if (png_ptr->zstream.msg != 0)
+            msg = png_ptr->zstream.msg;
+         else
+         {
+#ifdef PNG_STDIO_SUPPORTED
+            char umsg[52];
+
+            switch (ret)
+            {
+               case Z_BUF_ERROR:
+                  msg = "Buffer error in compressed datastream in %s chunk";
+                  break;
+               case Z_DATA_ERROR:
+                  msg = "Data error in compressed datastream in %s chunk";
+                  break;
+               default:
+                  msg = "Incomplete compressed datastream in %s chunk";
+                  break;
+            }
+
+            png_snprintf(umsg, sizeof umsg, msg, png_ptr->chunk_name);
+            msg = umsg;
+#else
+            msg = "Damaged compressed datastream in chunk other than IDAT";
+#endif
+         }
+
+         png_warning(png_ptr, msg);
+      }
+
+      /* 0 means an error - notice that this code simple ignores
+       * zero length compressed chunks as a result.
+       */
+      return 0;
+   }
+}
+
 /*
 * Decompress trailing data in a chunk.  The assumption is that chunkdata
 * points at an allocated area holding the contents of a chunk with a
@@ -210,185 +301,114 @@ png_crc_error(png_structp png_ptr)
 */
 void /* PRIVATE */
 png_decompress_chunk(png_structp png_ptr, int comp_type,
-                              png_size_t chunklength,
-                              png_size_t prefix_size, png_size_t *newlength)
+    png_size_t chunklength,
+    png_size_t prefix_size, png_size_t *newlength)
 {
-   static PNG_CONST char msg[] = "Error decoding compressed chunk";
-   png_charp text;
-   png_size_t text_size;
-
-   if (comp_type == PNG_COMPRESSION_TYPE_BASE)
+   /* The caller should guarantee this */
+   if (prefix_size > chunklength)
   {
-      int ret = Z_OK;
-      png_ptr->zstream.next_in = (png_bytep)(png_ptr->chunkdata + prefix_size);
-      png_ptr->zstream.avail_in = (uInt)(chunklength - prefix_size);
-      png_ptr->zstream.next_out = png_ptr->zbuf;
-      png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
-
-      text_size = 0;
-      text = NULL;
-
-      while (png_ptr->zstream.avail_in)
-      {
-         ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH);
-         if (ret != Z_OK && ret != Z_STREAM_END)
-         {
-            if (png_ptr->zstream.msg != NULL)
-               png_warning(png_ptr, png_ptr->zstream.msg);
-            else
-               png_warning(png_ptr, msg);
-            inflateReset(&png_ptr->zstream);
-            png_ptr->zstream.avail_in = 0;
-
-            if (text ==  NULL)
-            {
-               text_size = prefix_size + png_sizeof(msg) + 1;
-               text = (png_charp)png_malloc_warn(png_ptr, text_size);
-               if (text ==  NULL)
-                 {
-                    png_free(png_ptr, png_ptr->chunkdata);
-                    png_ptr->chunkdata = NULL;
-                    png_error(png_ptr, "Not enough memory to decompress chunk");
-                 }
-               png_memcpy(text, png_ptr->chunkdata, prefix_size);
-            }
-
-            text[text_size - 1] = 0x00;
-
-            /* Copy what we can of the error message into the text chunk */
-            text_size = (png_size_t)(chunklength -
-              (text - png_ptr->chunkdata) - 1);
-            if (text_size > png_sizeof(msg))
-               text_size = png_sizeof(msg);
-            png_memcpy(text + prefix_size, msg, text_size);
-            break;
-         }
-         if (!png_ptr->zstream.avail_out || ret == Z_STREAM_END)
-         {
-            if (text == NULL)
-            {
-               text_size = prefix_size +
-                   png_ptr->zbuf_size - png_ptr->zstream.avail_out;
-               text = (png_charp)png_malloc_warn(png_ptr, text_size + 1);
-               if (text ==  NULL)
-               {
-                  png_free(png_ptr, png_ptr->chunkdata);
-                  png_ptr->chunkdata = NULL;
-                  png_error(png_ptr,
-                    "Not enough memory to decompress chunk");
-               }
-               png_memcpy(text + prefix_size, png_ptr->zbuf,
-                    text_size - prefix_size);
-               png_memcpy(text, png_ptr->chunkdata, prefix_size);
-               *(text + text_size) = 0x00;
-            }
-            else
-            {
-               png_charp tmp;
-
-               tmp = text;
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
-               if ((png_ptr->user_chunk_cache_max != 0) &&
-                  (--png_ptr->user_chunk_cache_max == 0))
-               {
-                  png_warning(png_ptr, "No space in chunk cache");
-                  text = NULL;
-               }
-
-               else
-               {
-#endif
-                  text = (png_charp)png_malloc_warn(png_ptr,
-                     (png_size_t)(text_size +
-                      png_ptr->zbuf_size - png_ptr->zstream.avail_out + 1));
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
-               }
-#endif
-               if (text == NULL)
-               {
-                  png_free(png_ptr, tmp);
-                  png_free(png_ptr, png_ptr->chunkdata);
-                  png_ptr->chunkdata = NULL;
-                  png_error(png_ptr,
-                    "Not enough memory to decompress chunk");
-               }
-               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) = 0x00;
-            }
-            if (ret == Z_STREAM_END)
-               break;
-            else
-            {
-               png_ptr->zstream.next_out = png_ptr->zbuf;
-               png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
-            }
-         }
-      }
-      if (ret != Z_STREAM_END)
-      {
-#ifdef PNG_STDIO_SUPPORTED
-         char umsg[52];
-
-         if (ret == Z_BUF_ERROR)
-            png_snprintf(umsg, 52,
-                "Buffer error in compressed datastream in %s chunk",
-                png_ptr->chunk_name);
-
-         else if (ret == Z_DATA_ERROR)
-            png_snprintf(umsg, 52,
-                "Data error in compressed datastream in %s chunk",
-                png_ptr->chunk_name);
-
-         else
-            png_snprintf(umsg, 52,
-                "Incomplete compressed datastream in %s chunk",
-                png_ptr->chunk_name);
-
-         png_warning(png_ptr, umsg);
-#else
-         png_warning(png_ptr,
-            "Incomplete compressed datastream in chunk other than IDAT");
-#endif
-         text_size = prefix_size;
-         if (text ==  NULL)
-         {
-            text = (png_charp)png_malloc_warn(png_ptr, text_size+1);
-            if (text == NULL)
-              {
-                png_free(png_ptr, png_ptr->chunkdata);
-                png_ptr->chunkdata = NULL;
-                png_error(png_ptr, "Not enough memory for text");
-              }
-            png_memcpy(text, png_ptr->chunkdata, prefix_size);
-         }
-         *(text + text_size) = 0x00;
-      }
-
-      inflateReset(&png_ptr->zstream);
-      png_ptr->zstream.avail_in = 0;
-
-      png_free(png_ptr, png_ptr->chunkdata);
-      png_ptr->chunkdata = text;
-      *newlength=text_size;
+      /* The recovery is to delete the chunk. */
+      png_warning(png_ptr, "invalid chunklength");
+      prefix_size = 0; /* To delete everything */
   }
+
+   else if (comp_type == PNG_COMPRESSION_TYPE_BASE)
+   {
+      png_size_t expanded_size = png_inflate(png_ptr,
+                (png_bytep)(png_ptr->chunkdata + prefix_size),
+                chunklength - prefix_size,
+                0/*output*/, 0/*output size*/);
+
+      /* 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 &&
+          (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) &&
+          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
+       * has already been output (warning) or the size really is zero
+       * 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
+#endif
+      if (expanded_size > 0)
+      {
+         /* Success (maybe) - really uncompress the chunk. */
+         png_size_t new_size = 0;
+         png_charp text = png_malloc_warn(png_ptr,
+                        prefix_size + expanded_size + 1);
+
+         if (text != NULL)
+         {
+            png_memcpy(text, png_ptr->chunkdata, prefix_size);
+            new_size = png_inflate(png_ptr,
+                (png_bytep)(png_ptr->chunkdata + prefix_size),
+                chunklength - prefix_size,
+                (png_bytep)(text + prefix_size), expanded_size);
+            text[prefix_size + expanded_size] = 0; /* just in case */
+
+            if (new_size == expanded_size)
+            {
+               png_free(png_ptr, png_ptr->chunkdata);
+               png_ptr->chunkdata = text;
+               *newlength = prefix_size + expanded_size;
+               return; /* The success return! */
+            }
+
+            png_warning(png_ptr, "png_inflate logic error");
+            png_free(png_ptr, text);
+         }
+         else
+          png_warning(png_ptr, "Not enough memory to decompress chunk");
+      }
+   }
+
   else /* if (comp_type != PNG_COMPRESSION_TYPE_BASE) */
   {
 #ifdef PNG_STDIO_SUPPORTED
      char umsg[50];

-      png_snprintf(umsg, 50, "Unknown zTXt compression type %d", comp_type);
+      png_snprintf(umsg, sizeof umsg, "Unknown zTXt compression type %d",
+          comp_type);
      png_warning(png_ptr, umsg);
 #else
      png_warning(png_ptr, "Unknown zTXt compression type");
 #endif

-      *(png_ptr->chunkdata + prefix_size) = 0x00;
-      *newlength = prefix_size;
+      /* The recovery is to simply drop the data. */
   }
+
+   /* Generic error return - leave the prefix, delete the compressed
+    * data, reallocate the chunkdata to remove the potentially large
+    * amount of compressed data.
+    */
+   {
+      png_charp text = png_malloc_warn(png_ptr, prefix_size + 1);
+      if (text != NULL)
+      {
+         if (prefix_size > 0)
+            png_memcpy(text, png_ptr->chunkdata, prefix_size);
+         png_free(png_ptr, png_ptr->chunkdata);
+         png_ptr->chunkdata = text;
+
+         /* This is an extra zero in the 'uncompressed' part. */
+         *(png_ptr->chunkdata + prefix_size) = 0x00;
+      }
+      /* Ignore a malloc error here - it is safe. */
+   }
+
+   *newlength = prefix_size;
 }
 #endif

@@ -879,9 +899,11 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
               green_x, green_y, blue_x, blue_y);
 #else
            fprintf(stderr, "wx=%ld, wy=%ld, rx=%ld, ry=%ld\n",
-               int_x_white, int_y_white, int_x_red, int_y_red);
+               (long)int_x_white, (long)int_y_white,
+               (long)int_x_red, (long)int_y_red);
            fprintf(stderr, "gx=%ld, gy=%ld, bx=%ld, by=%ld\n",
-               int_x_green, int_y_green, int_x_blue, int_y_blue);
+               (long)int_x_green, (long)int_y_green,
+               (long)int_x_blue, (long)int_y_blue);
 #endif
 #endif /* PNG_CONSOLE_IO_SUPPORTED */
         }
@@ -1109,6 +1131,18 @@ 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 = NULL;
      png_warning(png_ptr, "Ignoring truncated iCCP profile");
+#ifdef PNG_STDIO_SUPPORTED
+ {
+    char umsg[50];
+
+    png_snprintf(umsg, 50, "declared profile size = %lu",
+        (unsigned long)profile_size);
+    png_warning(png_ptr, umsg);
+    png_snprintf(umsg, 50, "actual profile length = %lu",
+        (unsigned long)profile_length);
+    png_warning(png_ptr, umsg);
+ }
+#endif
      return;
   }

@@ -1135,7 +1169,7 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_debug(1, "in png_handle_sPLT");

-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED

   if (png_ptr->user_chunk_cache_max != 0)
   {
@@ -1185,7 +1219,8 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_ptr->chunkdata[slength] = 0x00;

-   for (entry_start = (png_bytep)png_ptr->chunkdata; *entry_start; entry_start++)
+   for (entry_start = (png_bytep)png_ptr->chunkdata; *entry_start;
+       entry_start++)
      /* Empty loop to find end of name */ ;
   ++entry_start;

@@ -1778,6 +1813,7 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (png_ptr->chunkdata == NULL)
   {
      png_warning(png_ptr, "Out of memory while processing sCAL chunk");
+      png_crc_finish(png_ptr, length);
      return;
   }
   slength = (png_size_t)length;
@@ -1799,6 +1835,8 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (*vp)
   {
      png_warning(png_ptr, "malformed width string in sCAL chunk");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
      return;
   }
 #else
@@ -1807,6 +1845,8 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (swidth == NULL)
   {
      png_warning(png_ptr, "Out of memory while processing sCAL chunk width");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
      return;
   }
   png_memcpy(swidth, ep, png_strlen(ep));
@@ -1820,8 +1860,7 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (png_ptr->chunkdata + slength < ep)
   {
      png_warning(png_ptr, "Truncated sCAL chunk");
-#if defined(PNG_FIXED_POINT_SUPPORTED) && \
-    !defined(PNG_FLOATING_POINT_SUPPORTED)
+#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
      png_free(png_ptr, swidth);
 #endif
      png_free(png_ptr, png_ptr->chunkdata);
@@ -1834,6 +1873,11 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (*vp)
   {
      png_warning(png_ptr, "malformed height string in sCAL chunk");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
+#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
+      png_free(png_ptr, swidth);
+#endif
      return;
   }
 #else
@@ -1842,6 +1886,11 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (sheight == NULL)
   {
      png_warning(png_ptr, "Out of memory while processing sCAL chunk height");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
+#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
+      png_free(png_ptr, swidth);
+#endif
      return;
   }
   png_memcpy(sheight, ep, png_strlen(ep));
@@ -1939,7 +1988,7 @@ png_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_debug(1, "in png_handle_tEXt");

-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED
   if (png_ptr->user_chunk_cache_max != 0)
   {
      if (png_ptr->user_chunk_cache_max == 1)
@@ -2041,7 +2090,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_debug(1, "in png_handle_zTXt");

-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED
   if (png_ptr->user_chunk_cache_max != 0)
   {
      if (png_ptr->user_chunk_cache_max == 1)
@@ -2162,7 +2211,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_debug(1, "in png_handle_iTXt");

-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED
   if (png_ptr->user_chunk_cache_max != 0)
   {
      if (png_ptr->user_chunk_cache_max == 1)
@@ -2306,7 +2355,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   png_debug(1, "in png_handle_unknown");

-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+#ifdef PNG_USER_LIMITS_SUPPORTED
   if (png_ptr->user_chunk_cache_max != 0)
   {
      if (png_ptr->user_chunk_cache_max == 1)
@@ -2361,7 +2410,8 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
       png_memcpy((png_charp)png_ptr->unknown_chunk.name,
                  (png_charp)png_ptr->chunk_name,
                  png_sizeof(png_ptr->unknown_chunk.name));
-       png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name)-1] = '\0';
+       png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name)-1]
+           = '\0';
       png_ptr->unknown_chunk.size = (png_size_t)length;
       if (length == 0)
         png_ptr->unknown_chunk.data = NULL;
@@ -2833,7 +2883,8 @@ png_do_read_interlace(png_structp png_ptr)
         default:
         {
            png_size_t pixel_bytes = (row_info->pixel_depth >> 3);
-            png_bytep sp = row + (png_size_t)(row_info->width - 1) * pixel_bytes;
+            png_bytep sp = row + (png_size_t)(row_info->width - 1)
+                * pixel_bytes;
            png_bytep dp = row + (png_size_t)(final_width - 1) * pixel_bytes;

            int jstop = png_pass_inc[pass];
@@ -3028,9 +3079,6 @@ png_read_finish_row(png_structp png_ptr)
            png_pass_start[png_ptr->pass]) /
            png_pass_inc[png_ptr->pass];

-         png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,
-            png_ptr->iwidth) + 1;
-
         if (!(png_ptr->transformations & PNG_INTERLACE))
         {
            png_ptr->num_rows = (png_ptr->height +
@@ -3155,16 +3203,12 @@ png_read_start_row(png_structp png_ptr)
         png_pass_inc[png_ptr->pass] - 1 -
         png_pass_start[png_ptr->pass]) /
         png_pass_inc[png_ptr->pass];
-
-         png_ptr->irowbytes =
-            PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->iwidth) + 1;
   }
   else
 #endif /* PNG_READ_INTERLACING_SUPPORTED */
   {
      png_ptr->num_rows = png_ptr->height;
      png_ptr->iwidth = png_ptr->width;
-      png_ptr->irowbytes = png_ptr->rowbytes + 1;
   }
   max_pixel_depth = png_ptr->pixel_depth;

@@ -3329,7 +3373,8 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
   png_debug1(3, "iwidth = %lu,", png_ptr->iwidth);
   png_debug1(3, "num_rows = %lu,", png_ptr->num_rows);
   png_debug1(3, "rowbytes = %lu,", png_ptr->rowbytes);
-   png_debug1(3, "irowbytes = %lu", png_ptr->irowbytes);
+   png_debug1(3, "irowbytes = %lu",
+       PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->iwidth) + 1);

   png_ptr->flags |= PNG_FLAG_ROW_INIT;
 }
--- a/pngset.c
+++ b/pngset.c
@@ -1,7 +1,7 @@

 /* pngset.c - storage of image information into info struct
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.1 [February 25, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -1093,7 +1093,6 @@ png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)
 }
 #endif

-#ifdef PNG_WRITE_SUPPORTED
 void PNGAPI
 png_set_compression_buffer_size(png_structp png_ptr,
    png_size_t size)
@@ -1106,7 +1105,6 @@ png_set_compression_buffer_size(png_structp png_ptr,
    png_ptr->zstream.next_out = png_ptr->zbuf;
    png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
 }
-#endif

 void PNGAPI
 png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask)
@@ -1132,18 +1130,24 @@ png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max,
   png_ptr->user_width_max = user_width_max;
   png_ptr->user_height_max = user_height_max;
 }
+
 /* This function was added to libpng 1.4.0 */
 void PNGAPI
 png_set_chunk_cache_max (png_structp png_ptr,
   png_uint_32 user_chunk_cache_max)
 {
-    if (png_ptr == NULL)
-      return;
-    png_ptr->user_chunk_cache_max = user_chunk_cache_max;
-    if (user_chunk_cache_max == 0x7fffffffL)  /* Unlimited */
-       png_ptr->user_chunk_cache_max = 0;
-    else
-       png_ptr->user_chunk_cache_max = user_chunk_cache_max + 1;
+    if (png_ptr)
+       png_ptr->user_chunk_cache_max = user_chunk_cache_max;
+}
+
+/* This function was added to libpng 1.4.1 */
+void PNGAPI
+png_set_chunk_malloc_max (png_structp png_ptr,
+   png_alloc_size_t user_chunk_malloc_max)
+{
+    if (png_ptr)
+       png_ptr->user_chunk_malloc_max =
+          (png_size_t)user_chunk_malloc_max;
 }
 #endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */

--- a/pngtest.c
+++ b/pngtest.c
@@ -1,7 +1,7 @@

 /* pngtest.c - a simple test program to test libpng
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.1 [February 25, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -859,8 +859,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
   {
      png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
         blue_y;
-      if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
-         &red_y, &green_x, &green_y, &blue_x, &blue_y))
+      if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y,
+         &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y))
      {
         png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,
            red_y, green_x, green_y, blue_x, blue_y);
@@ -1012,7 +1012,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
      if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
          &scal_height))
      {
-         png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height);
+         png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width,
+             scal_height);
      }
   }
 #endif
@@ -1465,14 +1466,14 @@ main(int argc, char *argv[])
 #endif
      for (i=2; i<argc; ++i)
      {
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-         int k;
-#endif
         int kerror;
         fprintf(STDERR, "\n Testing %s:", argv[i]);
         kerror = test_one_file(argv[i], outname);
         if (kerror == 0)
         {
+#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
+            int k;
+#endif
 #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
            fprintf(STDERR, "\n PASS (%lu zero samples)\n",
               (unsigned long)zero_samples);
@@ -1558,8 +1559,7 @@ main(int argc, char *argv[])
                for (k = 0; k<256; k++)
                   if (filters_used[k])
                      fprintf(STDERR, " Filter %d was used %lu times\n",
-                         k,
-                         (unsigned long)filters_used[k]);
+                         k, (unsigned long)filters_used[k]);
 #endif
 #ifdef PNG_TIME_RFC1123_SUPPORTED
             if (tIME_chunk_present != 0)
@@ -1627,4 +1627,4 @@ main(int argc, char *argv[])
 }

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_4_0 your_png_h_is_not_version_1_4_0;
+typedef version_1_4_3 your_png_h_is_not_version_1_4_3;
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,7 +1,7 @@

 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.2 [April 29, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -655,7 +655,6 @@ png_set_user_transform_info(png_structp png_ptr, png_voidp
        "This version of libpng does not support user transform info");
 #endif
 }
-#endif

 /* This function returns a pointer to the user_transform_ptr associated with
 * the user transform functions.  The application should free any memory
@@ -673,4 +672,6 @@ png_get_user_transform_ptr(png_structp png_ptr)
   return (NULL);
 #endif
 }
+#endif /* PNG_READ_USER_TRANSFORM_SUPPORTED ||
+	  PNG_WRITE_USER_TRANSFORM_SUPPORTED */
 #endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
--- a/pngwio.c
+++ b/pngwio.c
@@ -155,7 +155,7 @@ png_default_flush(png_structp png_ptr)
 *                 arguments a pointer to a png_struct.  After a call to
 *                 the flush function, there should be no data in any buffers
 *                 or pending transmission.  If the output method doesn't do
- *                 any buffering of ouput, a function prototype must still be
+ *                 any buffering of output, a function prototype must still be
 *                 supplied although it doesn't have to do anything.  If
 *                 PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
 *                 time, output_flush_fn will be ignored, although it must be
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -38,7 +38,8 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
   /* Write PNG signature */
   png_write_sig(png_ptr);
 #ifdef PNG_MNG_FEATURES_SUPPORTED
-   if ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted))
+   if ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) && \
+      (png_ptr->mng_features_permitted))
   {
      png_warning(png_ptr, "MNG features are not allowed in a PNG datastream");
      png_ptr->mng_features_permitted = 0;
@@ -680,9 +681,11 @@ png_write_row(png_structp png_ptr, png_bytep row)
      if (png_ptr->transformations & PNG_FILLER)
         png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined");
 #endif
-#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && defined(PNG_READ_PACKSWAP_SUPPORTED)
+#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \
+    defined(PNG_READ_PACKSWAP_SUPPORTED)
      if (png_ptr->transformations & PNG_PACKSWAP)
-         png_warning(png_ptr, "PNG_WRITE_PACKSWAP_SUPPORTED is not defined");
+         png_warning(png_ptr,
+             "PNG_WRITE_PACKSWAP_SUPPORTED is not defined");
 #endif
 #if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED)
      if (png_ptr->transformations & PNG_PACK)
@@ -936,7 +939,7 @@ png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
      {
        png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);

-#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
+#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
        if (png_ptr->num_chunk_list)
        {
           png_free(png_ptr, png_ptr->chunk_list);
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -1,7 +1,7 @@

 /* pngwtran.c - transforms the data in a row for PNG writers
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.1 [February 25, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -30,7 +30,8 @@ png_do_write_transformations(png_structp png_ptr)
 #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
   if (png_ptr->transformations & PNG_USER_TRANSFORM)
      if (png_ptr->write_user_transform_fn != NULL)
-        (*(png_ptr->write_user_transform_fn)) /* User write transform function */
+        (*(png_ptr->write_user_transform_fn)) /* User write transform
+                                                 function */
          (png_ptr,                    /* png_ptr */
           &(png_ptr->row_info),       /* row_info:     */
             /*  png_uint_32 width;          width of row */
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@

 /* pngwutil.c - utilities to write a PNG file
 *
- * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Last changed in libpng 1.4.1 [February 25, 2010]
 * Copyright (c) 1998-2010 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.)
@@ -436,7 +436,8 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
            case 4:
            case 8:
            case 16: png_ptr->channels = 1; break;
-            default: png_error(png_ptr, "Invalid bit depth for grayscale image");
+            default: png_error(png_ptr,
+                         "Invalid bit depth for grayscale image");
         }
         break;
      case PNG_COLOR_TYPE_RGB:
@@ -639,7 +640,9 @@ png_write_PLTE(png_structp png_ptr, png_colorp palette, png_uint_32 num_pal)
      png_write_chunk_data(png_ptr, buf, (png_size_t)3);
   }
 #else
-   /* This is a little slower but some buggy compilers need to do this instead */
+   /* This is a little slower but some buggy compilers need to do this
+    * instead
+    */
   pal_ptr=palette;
   for (i = 0; i < num_pal; i++)
   {
@@ -2103,7 +2106,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
   png_uint_32 row_bytes = row_info->rowbytes;
 #ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
   int num_p_filters = (int)png_ptr->num_prev_filters;
-#endif 
+#endif

   png_debug(1, "in png_write_find_filter");

@@ -2113,7 +2116,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
      /* These will never be selected so we need not test them. */
      filter_to_do &= ~(PNG_FILTER_UP | PNG_FILTER_PAETH);
  }
-#endif 
+#endif

   /* Find out how many bytes offset each pixel is */
   bpp = (row_info->pixel_depth + 7) >> 3;
--- a/projects/cbuilder5/README.txt
+++ b/projects/cbuilder5/README.txt
@@ -1,11 +0,0 @@
-The cbuilder5 project has not been updated to libpng-1.4.0.
-
-It needs to depend on pngpriv.h
-
-It needs to *not* depend on pnggccrd.c or pngvcrd.c
-
-It needs to DEFINE PNG_NO_PEDANTIC_WARNING while building
-the library, but not while building an application.
-
-If an updated version is not received, this project will
-be removed when libpng-1.4.0 is released.
--- a/projects/cbuilder5/libpng.bpf
+++ b/projects/cbuilder5/libpng.bpf
@@ -1,22 +0,0 @@
-USEUNIT("libpng.cpp");
-USEUNIT("..\..\png.c");
-USEUNIT("..\..\pngerror.c");
-USEUNIT("..\..\pngget.c");
-USEUNIT("..\..\pngmem.c");
-USEUNIT("..\..\pngpread.c");
-USEUNIT("..\..\pngread.c");
-USEUNIT("..\..\pngrio.c");
-USEUNIT("..\..\pngrtran.c");
-USEUNIT("..\..\pngrutil.c");
-USEUNIT("..\..\pngset.c");
-USEUNIT("..\..\pngtrans.c");
-USEUNIT("..\..\pngwio.c");
-USEUNIT("..\..\pngwrite.c");
-USEUNIT("..\..\pngwtran.c");
-USEUNIT("..\..\pngwutil.c");
-USELIB("..\..\..\zlib\zlib.lib");
-//---------------------------------------------------------------------------
-This file is used by the project manager only and should be treated like the project file
-
-
-DllEntryPoint
--- a/projects/cbuilder5/libpng.bpg
+++ b/projects/cbuilder5/libpng.bpg
@@ -1,25 +0,0 @@
-#------------------------------------------------------------------------------
-VERSION = BWS.01
-#------------------------------------------------------------------------------
-!ifndef ROOT
-ROOT = $(MAKEDIR)\..
-!endif
-#------------------------------------------------------------------------------
-MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
-DCC = $(ROOT)\bin\dcc32.exe $**
-BRCC = $(ROOT)\bin\brcc32.exe $**
-#------------------------------------------------------------------------------
-PROJECTS = libpngstat.lib libpng.dll
-#------------------------------------------------------------------------------
-default: $(PROJECTS)
-#------------------------------------------------------------------------------
-
-libpngstat.lib: libpngstat.bpr
-  $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
-  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
-
-libpng.dll: libpng.bpr
-  $(ROOT)\bin\bpr2mak $**
-  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
-
-
--- a/projects/cbuilder5/libpng.bpr
+++ b/projects/cbuilder5/libpng.bpr
@@ -1,157 +0,0 @@
-<?xml version='1.0' encoding='utf-8' ?>
-<!-- C++Builder XML Project -->
-<PROJECT>
-  <MACROS>
-    <VERSION value="BCB.05.03"/>
-    <PROJECT value="libpng.dll"/>
-    <OBJFILES value="libpng.obj ..\..\pngwutil.obj ..\..\pngerror.obj ..\..\pngget.obj 
-      ..\..\pngmem.obj ..\..\pngpread.obj ..\..\pngread.obj ..\..\pngrio.obj 
-      ..\..\pngrtran.obj ..\..\pngrutil.obj ..\..\pngset.obj ..\..\pngtrans.obj 
-      ..\..\pngwio.obj ..\..\pngwrite.obj ..\..\pngwtran.obj ..\..\png.obj"/>
-    <RESFILES value=""/>
-    <DEFFILE value=""/>
-    <RESDEPEN value="$(RESFILES)"/>
-    <LIBFILES value="..\..\..\zlib\zlib.lib"/>
-    <LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
-    <SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
-    <PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi 
-      ibsmp50.bpi vcldbx50.bpi TeeUI50.bpi TeeDB50.bpi Tee50.bpi TeeQR50.bpi 
-      VCLIB50.bpi bcbie50.bpi vclie50.bpi Inetdb50.bpi Inet50.bpi NMFast50.bpi 
-      dclocx50.bpi bcb97axserver50.bpi SIMULUSCOMPONENTS.bpi Simulus2.bpi"/>
-    <PATHCPP value=".;..\.."/>
-    <PATHPAS value=".;"/>
-    <PATHRC value=".;"/>
-    <PATHASM value=".;"/>
-    <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
-    <RELEASELIBPATH value="$(BCB)\lib\release"/>
-    <LINKER value="tlink32"/>
-    <USERDEFINES value="PNG_BUILD_DLL;PNG_NO_MODULEDEF"/>
-    <SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL"/>
-    <MAINSOURCE value="libpng.bpf"/>
-    <INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>
-    <LIBPATH value="..\..;$(BCB)\lib\obj;$(BCB)\lib"/>
-    <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wucp -wstv -wstu -wsig -wpin 
-      -wnod -wnak -wdef -wcln -wbbf -wasm -wamp -wamb"/>
-  </MACROS>
-  <OPTIONS>
-    <CFLAG1 value="-WD -O2 -w -Vx -Ve -x- -RT- -X- -a8 -5 -b- -d -k- -vi -tWD -tWM -c"/>
-    <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
-    <RFLAGS value=""/>
-    <AFLAGS value="/mx /w2 /zn"/>
-    <LFLAGS value="-D&quot;&quot; -aa -Tpd -x -Gn -Gi -w"/>
-  </OPTIONS>
-  <LINKER>
-    <ALLOBJ value="c0d32.obj $(OBJFILES)"/>
-    <ALLRES value="$(RESFILES)"/>
-    <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mti.lib"/>
-  </LINKER>
-  <IDEOPTIONS>
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=1
-Locale=2057
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=18
-Item0=..\..;..\..\..\zlib;$(BCB)\include
-Item1=..\..;P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
-Item2=..\..;..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
-Item3=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
-Item4=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
-Item5=..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
-Item6=..\Source\ThirdParty\PortableNetworkGraphics;P:\Development\Source\ThirdParty\ZLibCompression;$(BCB)\include
-Item7=..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\include
-Item8=$(BCB)\include
-Item9=..\Source;..\Source\General\Templates;..\Source\SIMUtilities;$(BCB)\include;$(BCB)\include\vcl
-Item10=P:\Development\Source\;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
-Item11=P:\Development\Source;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
-Item12=P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
-Item13=P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities;$(BCB)\include;$(BCB)\include\vcl
-Item14=P:\Development\Source\General\Templates\;$(BCB)\include;$(BCB)\include\vcl
-Item15=P:\Development\Source\General\Templates;$(BCB)\include;$(BCB)\include\vcl
-Item16=P:\Development\Source;$(BCB)\include;$(BCB)\include\vcl
-Item17=$(BCB)\include;$(BCB)\include\vcl
-
-[HistoryLists\hlLibraryPath]
-Count=10
-Item0=..\..;$(BCB)\lib\obj;$(BCB)\lib
-Item1=..\..;..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\lib\obj;$(BCB)\lib
-Item2=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\lib\obj;$(BCB)\lib
-Item3=..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\lib\obj;$(BCB)\lib
-Item4=$(BCB)\lib\obj;$(BCB)\lib
-Item5=..\Source\SIMUtilities;..\Source;$(BCB)\lib\obj;$(BCB)\lib
-Item6=P:\Development\Source\SIMUtilities\;P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
-Item7=P:\Development\Source\SIMUtilities;P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
-Item8=P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
-Item9=P:\Development\Source;$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[HistoryLists\hlConditionals]
-Count=20
-Item0=ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF
-Item1=_DEBUG;ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF
-Item2=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_NO_MODULEDEF
-Item3=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF;PNG_NO_GLOBAL_ARRAYS
-Item4=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF;PNG_SETJMP_NOT_SUPPORTED;PNG_DEBUG_FILE=stderr
-Item5=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG;PNG_NO_MODULEDEF;PNG_SETJMP_NOT_SUPPORTED
-Item6=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF;PNG_SETJMP_NOT_SUPPORTED
-Item7=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF
-Item8=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5
-Item9=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG
-Item10=PNG_BUILD_DLL;ZLIB_DLL
-Item11=PNG_BUILD_DLL
-Item12=PNG_DLL;PNG_BUILD_DLL;ZLIB_DLL
-Item13=PNG_DLL;PNG_BUILD_DLL;PNG_NO_GLOBAL_ARRAYS;ZLIB_DLL
-Item14=PNG_DLL;PNG_BUILD_DLL;PNG_NO_GLOBAL_ARRAYS
-Item15=PNG_DLL;PNG_BUILD_DLL
-Item16=PNG_DLL;PNG_BUILD_DLL;PNG_MODULEDEF
-Item17=_HTML_FORM
-Item18=_DEBUG;_HTML_FORM
-Item19=_DEBUG
-
-[HistoryLists\hlIntOutputDir]
-Count=2
-Item0=..\Obj
-Item1=P:\Development\Obj
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=P:\Development\Executables\LibPNGTestApp.exe
-RemoteHost=
-RemotePath=
-RemoteDebug=0
-
-[Compiler]
-ShowInfoMsgs=0
-LinkDebugVcl=0
-LinkCGLIB=0
-  </IDEOPTIONS>
-</PROJECT>
--- a/projects/cbuilder5/libpng.cpp
+++ b/projects/cbuilder5/libpng.cpp
@@ -1,29 +0,0 @@
-//---------------------------------------------------------------------------
-#include <windows.h>
-//---------------------------------------------------------------------------
-//   Important note about DLL memory management when your DLL uses the
-//   static version of the RunTime Library:
-//
-//   If your DLL exports any functions that pass String objects (or structs/
-//   classes containing nested Strings) as parameter or function results,
-//   you will need to add the library MEMMGR.LIB to both the DLL project and
-//   any other projects that use the DLL.  You will also need to use MEMMGR.LIB
-//   if any other projects which use the DLL will be performing new or delete
-//   operations on any non-TObject-derived classes which are exported from the
-//   DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
-//   EXE's to use the BORLNDMM.DLL as their memory manager.  In these cases,
-//   the file BORLNDMM.DLL should be deployed along with your DLL.
-//
-//   To avoid using BORLNDMM.DLL, pass string information using "char *" or
-//   ShortString parameters.
-//
-//   If your DLL uses the dynamic version of the RTL, you do not need to
-//   explicitly add MEMMGR.LIB as this will be done implicitly for you
-//---------------------------------------------------------------------------
-
-int WINAPI DllEntryPoint(HINSTANCE, unsigned long, void*)
-{
-    return 1;
-}
-//---------------------------------------------------------------------------
- 
--- a/projects/cbuilder5/libpng.readme.txt
+++ b/projects/cbuilder5/libpng.readme.txt
@@ -1,25 +0,0 @@
-Project files to build libpng using Borland C++ Builder v5.0
-
-In order to build and use libpng, please follow these steps:
-
- 1). Install zlib in a directory at the same level with libpng.
-
- 2). In a console window, go to the zlib directory and type:
-       make -f win32\Makefile.bor
-     After performing this step, you should have a file named
-     zlib.lib in the zlib directory.
-
- 3). Add the following conditional define to your project:
-       PNG_USE_DLL
-
- 4). Add libpng.lib or libpngstat.lib to the project.
-     Build the project.
-
- 5). If the build fails, add the paths to png.h and zlib.h to
-     your include path, and restart the build.
-
-By default, the libpng project uses zlib as a static library.  If
-you wish to use zlib as a DLL, please read the important notes from
-the zlib DLL FAQ, found inside the zlib distribution.
-
-See the libpng documentation for instructions on how to use the code.
--- a/projects/cbuilder5/libpngstat.bpf
+++ b/projects/cbuilder5/libpngstat.bpf
@@ -1,22 +0,0 @@
-USEUNIT("..\..\png.c");
-USEUNIT("..\..\pngerror.c");
-USEUNIT("..\..\pngget.c");
-USEUNIT("..\..\pngmem.c");
-USEUNIT("..\..\pngpread.c");
-USEUNIT("..\..\pngread.c");
-USEUNIT("..\..\pngrio.c");
-USEUNIT("..\..\pngrtran.c");
-USEUNIT("..\..\pngrutil.c");
-USEUNIT("..\..\pngset.c");
-USEUNIT("..\..\pngtrans.c");
-USEUNIT("..\..\pngwio.c");
-USEUNIT("..\..\pngwrite.c");
-USEUNIT("..\..\pngwtran.c");
-USEUNIT("..\..\pngwutil.c");
-USELIB("..\..\..\zlib\zlib.lib");
-//---------------------------------------------------------------------------
-#define Library
-
-// To add a file to the library use the Project menu 'Add to Project'.
-
- 
--- a/projects/cbuilder5/libpngstat.bpr
+++ b/projects/cbuilder5/libpngstat.bpr
@@ -1,109 +0,0 @@
-<?xml version='1.0' encoding='utf-8' ?>
-<!-- C++Builder XML Project -->
-<PROJECT>
-  <MACROS>
-    <VERSION value="BCB.05.03"/>
-    <PROJECT value="libpngstat.lib"/>
-    <OBJFILES value="..\..\pngerror.obj ..\..\png.obj ..\..\pngwutil.obj ..\..\pngmem.obj 
-      ..\..\pngpread.obj ..\..\pngread.obj ..\..\pngrio.obj ..\..\pngrtran.obj 
-      ..\..\pngrutil.obj ..\..\pngset.obj ..\..\pngtrans.obj ..\..\pngwio.obj 
-      ..\..\pngwrite.obj ..\..\pngwtran.obj ..\..\pngget.obj"/>
-    <RESFILES value=""/>
-    <DEFFILE value=""/>
-    <RESDEPEN value="$(RESFILES)"/>
-    <LIBFILES value="..\..\..\zlib\zlib.lib"/>
-    <LIBRARIES value=""/>
-    <PACKAGES value=""/>
-    <PATHCPP value=".;..\.."/>
-    <PATHPAS value=".;"/>
-    <PATHRC value=".;"/>
-    <PATHASM value=".;"/>
-    <LINKER value="TLib"/>
-    <USERDEFINES value=""/>
-    <SYSDEFINES value="_RTLDLL;NO_STRICT"/>
-    <MAINSOURCE value="libpngstat.bpf"/>
-    <INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>
-    <LIBPATH value="..\..;$(BCB)\lib\obj;$(BCB)\lib"/>
-    <WARNINGS value="-w-par"/>
-    <LISTFILE value=""/>
-  </MACROS>
-  <OPTIONS>
-    <CFLAG1 value="-O2 -w -Vx -Ve -X- -a8 -5 -b- -d -k- -vi -c -tW -tWM"/>
-    <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
-    <AFLAGS value="/mx /w2 /zn"/>
-    <LFLAGS value=""/>
-  </OPTIONS>
-  <LINKER>
-    <ALLOBJ value="$(OBJFILES)"/>
-    <ALLLIB value=""/>
-  </LINKER>
-  <IDEOPTIONS>
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=2057
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=..\..;P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
-Item1=..\..;$(BCB)\include;$(BCB)\include\vcl
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=..\..;$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[HistoryLists\hlConditionals]
-Count=1
-Item0=_DEBUG
-
-[HistoryLists\hlTlibPageSize]
-Count=1
-Item0=0x0010
-
-[Debugging]
-DebugSourceDirs=$(BCB)\source\vcl
-
-[Parameters]
-RunParams=
-HostApplication=
-RemoteHost=
-RemotePath=
-RemoteDebug=0
-
-[Compiler]
-ShowInfoMsgs=0
-LinkDebugVcl=0
-LinkCGLIB=0
-
-[Language]
-ActiveLang=
-ProjectLang=
-RootDir=
-  </IDEOPTIONS>
-</PROJECT>
--- a/projects/cbuilder5/zlib.readme.txt
+++ b/projects/cbuilder5/zlib.readme.txt
@@ -1,14 +0,0 @@
-The project that builds libpng under Borland C++ Builder does not
-explicitly build zlib.  By taking this decision, there is no need
-to update the libpng project each time when there is a change in
-the list of zlib source files.  After all, this list is private to
-zlib, and applications (such as libpng) should not assume anything
-about it.
-
-If you wish to contribute a project that builds zlib under Borland
-C++ Builder, please submit it to the zlib developers, not to the
-libpng developers.
-
-By default, the libpng project uses zlib as a static library.  If
-you wish to use zlib as a DLL, please read the important notes from
-the zlib DLL FAQ, found inside the zlib distribution.
--- a/projects/visualc6/README.txt
+++ b/projects/visualc6/README.txt
@@ -6,6 +6,8 @@ Copyright (C) 2004 Cosmin Truta.
 This code is released under the libpng license.
 For conditions of distribution and use, see copyright notice in png.h

+NOTE: This project will be removed from libpng-1.5.0.  It has
+been replaced with the "vstudio" project.

 Assumptions:
 * The libpng source files are in ..\..
--- a/projects/visualc71/README.txt
+++ b/projects/visualc71/README.txt
@@ -5,6 +5,9 @@ Copyright (C) 2004 Simon-Pierre Cadieux.
 This code is released under the libpng license.
 For conditions of distribution and use, see copyright notice in png.h

+NOTE: This project will be removed from libpng-1.5.0.  It has
+been replaced with the "vstudio" project.
+
 Assumptions:
 * The libpng source files are in ..\..
 * The zlib source files are in ..\..\..\zlib
--- a/projects/visualc71/README_zlib.txt
+++ b/projects/visualc71/README_zlib.txt
@@ -10,6 +10,8 @@ Copyright (C) 2004 Cosmin Truta.
 This code is released under the libpng license.
 For conditions of distribution and use, see copyright notice in zlib.h.

+NOTE: This project will be removed from libpng-1.5.0.  It has
+been replaced with the "vstudio" project.

 To use:

--- a/projects/vstudio/libpng/libpng.vcxproj
+++ b/projects/vstudio/libpng/libpng.vcxproj
@@ -0,0 +1,233 @@
+<?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>{D6973076-9317-4EF2-A0B8-B7A18AC0713E}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>libpng</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(SolutionDir)\zlib.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</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)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <CustomBuildBeforeTargets>
+    </CustomBuildBeforeTargets>
+    <TargetName>$(ProjectName)14</TargetName>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <CustomBuildBeforeTargets />
+    <TargetName>$(ProjectName)14</TargetName>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <CustomBuildBeforeTargets>
+    </CustomBuildBeforeTargets>
+    <TargetName>$(ProjectName)14</TargetName>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <CustomBuildBeforeTargets />
+    <TargetName>$(ProjectName)14</TargetName>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <MinimalRebuild>false</MinimalRebuild>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PreprocessorDefinitions>WIN32;PNG_BUILD_DLL;PNG_NO_MODULEDEF;_DEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <FloatingPointExceptions>false</FloatingPointExceptions>
+      <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
+      <PrecompiledHeaderFile>png.h</PrecompiledHeaderFile>
+      <BrowseInformation>true</BrowseInformation>
+      <CompileAs>CompileAsC</CompileAs>
+      <StringPooling>true</StringPooling>
+      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
+      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <Optimization>Disabled</Optimization>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>zlib.lib;msvcrtd.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+      <Version>14</Version>
+      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <MinimalRebuild>false</MinimalRebuild>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <FloatingPointExceptions>false</FloatingPointExceptions>
+      <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
+      <PrecompiledHeaderFile>png.h</PrecompiledHeaderFile>
+      <BrowseInformation>true</BrowseInformation>
+      <CompileAs>CompileAsC</CompileAs>
+      <StringPooling>true</StringPooling>
+      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
+      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;PNG_BUILD_DLL;PNG_NO_MODULEDEF;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FloatingPointExceptions>false</FloatingPointExceptions>
+      <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
+      <PrecompiledHeaderFile>png.h</PrecompiledHeaderFile>
+      <BrowseInformation>true</BrowseInformation>
+      <CompileAs>CompileAsC</CompileAs>
+      <StringPooling>true</StringPooling>
+      <MinimalRebuild>false</MinimalRebuild>
+      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
+      <AdditionalIncludeDirectories>$(ZLib1Dir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <Optimization>Full</Optimization>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>zdll.lib;msvcrt.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+      <Version>14</Version>
+      <AdditionalLibraryDirectories>$(ZLib1Dir)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FloatingPointExceptions>false</FloatingPointExceptions>
+      <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
+      <PrecompiledHeaderFile>png.h</PrecompiledHeaderFile>
+      <BrowseInformation>true</BrowseInformation>
+      <CompileAs>CompileAsC</CompileAs>
+      <StringPooling>true</StringPooling>
+      <MinimalRebuild>false</MinimalRebuild>
+      <DisableSpecificWarnings>4996;4127</DisableSpecificWarnings>
+      <AdditionalIncludeDirectories>$(ZLib1Dir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <Optimization>Full</Optimization>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\png.c">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="..\..\..\pngerror.c" />
+    <ClCompile Include="..\..\..\pngget.c" />
+    <ClCompile Include="..\..\..\pngmem.c" />
+    <ClCompile Include="..\..\..\pngpread.c" />
+    <ClCompile Include="..\..\..\pngread.c" />
+    <ClCompile Include="..\..\..\pngrio.c" />
+    <ClCompile Include="..\..\..\pngrtran.c" />
+    <ClCompile Include="..\..\..\pngrutil.c" />
+    <ClCompile Include="..\..\..\pngset.c" />
+    <ClCompile Include="..\..\..\pngtrans.c" />
+    <ClCompile Include="..\..\..\pngwio.c" />
+    <ClCompile Include="..\..\..\pngwrite.c" />
+    <ClCompile Include="..\..\..\pngwtran.c" />
+    <ClCompile Include="..\..\..\pngwutil.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="..\..\..\scripts\pngwin.rc">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">true</ExcludedFromBuild>
+    </ResourceCompile>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/projects/vstudio/pngtest/pngtest.vcxproj
+++ b/projects/vstudio/pngtest/pngtest.vcxproj
@@ -0,0 +1,217 @@
+<?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>{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>pngtest</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)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <MinimalRebuild>false</MinimalRebuild>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      <CompileAsManaged>false</CompileAsManaged>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <StringPooling>true</StringPooling>
+      <FunctionLevelLinking>false</FunctionLevelLinking>
+      <BrowseInformation>true</BrowseInformation>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>libpng14.lib;zlib.lib;msvcrtd.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
+    </Link>
+    <CustomBuildStep>
+      <Message>Executing PNG test program</Message>
+      <Command>"$(OutDir)pngtest.exe" ..\..\..\pngtest.png "$(IntDir)pngout.png"</Command>
+      <Outputs>$(IntDir)pngout.png</Outputs>
+      <Inputs>..\..\..\pngtest.png;$(OutDir)pngtest.exe</Inputs>
+    </CustomBuildStep>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <MinimalRebuild>false</MinimalRebuild>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      <CompileAsManaged>false</CompileAsManaged>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <StringPooling>true</StringPooling>
+      <FunctionLevelLinking>false</FunctionLevelLinking>
+      <BrowseInformation>true</BrowseInformation>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>libpng14.lib;zlib.lib;msvcrtd.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
+    </Link>
+    <CustomBuildStep>
+      <Message>Executing PNG test program</Message>
+      <Command>"$(OutDir)pngtest.exe" ..\..\..\pngtest.png "$(IntDir)pngout.png"</Command>
+      <Outputs>$(IntDir)pngout.png</Outputs>
+      <Inputs>..\..\..\pngtest.png;$(OutDir)pngtest.exe</Inputs>
+    </CustomBuildStep>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Full</Optimization>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>false</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(ZLib1Dir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      <CompileAsManaged>false</CompileAsManaged>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <StringPooling>true</StringPooling>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BrowseInformation>true</BrowseInformation>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>libpng14.lib;msvcrt.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+      <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
+    </Link>
+    <CustomBuildStep>
+      <Message>Executing PNG test program</Message>
+      <Command>"$(OutDir)pngtest.exe" ..\..\..\pngtest.png "$(IntDir)pngout.png"</Command>
+      <Outputs>$(IntDir)pngout.png</Outputs>
+      <Inputs>..\..\..\pngtest.png;$(OutDir)pngtest.exe</Inputs>
+    </CustomBuildStep>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Full</Optimization>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>false</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(ZLib1Dir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      <CompileAsManaged>false</CompileAsManaged>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <StringPooling>true</StringPooling>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BrowseInformation>true</BrowseInformation>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>libpng14.lib;zlib.lib;msvcrt.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+      <AdditionalLibraryDirectories>$(OutDir);$(ZLib1Dir)</AdditionalLibraryDirectories>
+    </Link>
+    <CustomBuildStep>
+      <Message>Executing PNG test program</Message>
+      <Command>$(OutDir)pngtest.exe ..\..\..\pngtest.png $(IntDir)pngout.png</Command>
+      <Command>"$(OutDir)pngtest.exe" ..\..\..\pngtest.png "$(IntDir)pngout.png"</Command>
+      <Outputs>$(IntDir)pngout.png</Outputs>
+      <Inputs>..\..\..\pngtest.png;$(OutDir)pngtest.exe</Inputs>
+    </CustomBuildStep>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\pngtest.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -0,0 +1,93 @@
+
+VisualStudio instructions
+
+libpng version 1.4.3 - June 26, 2010
+
+Copyright (c) 1998-2010 Glenn Randers-Pehrson
+
+This code is released under the libpng license.
+For conditions of distribution and use, see the disclaimer
+and license in png.h
+
+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.
+
+This is a slightly modified copy of the 'vstudio' solution from libpng
+1.5; it is intended to provide compatibility for libpng 1.4 with later
+releases of zlib (from 1.2.4) and to provide a migration aid for 1.5.
+
+A 'VB' DLL is no longer produced - use the standard 'Release' DLL.
+
+Initial preparations
+====================
+You should install the 'official' build of zlib on your system - follow the
+instructions provided on http://www.zlib.net.  When a new release is being
+made of zlib the instructions disappear for a while until the new official
+build is available.  You will have to wait.
+
+You must enter some information in zlib.props before attempting to build
+with this 'solution'.  Please read and edit zlib.props first.  You will
+probably not be familiar with the contents of zlib.props - do not worry,
+it is mostly harmless.
+
+Make sure that your official build layout matches the requirements listed
+in zlib.props.  Prior to zlib-1.2.4 the official build (1.2.3) placed
+include and library files in different directories - if you find this
+has happened just put them all in the same directory.
+
+This is all you need to do to build the 'release' and 'release library'
+configurations.
+
+Debugging
+=========
+The release configurations default to /Ox optimization.  Full debugging
+information is produced (in the .pdb), but if you encounter a problem the
+optimization may make it difficult to debug.  Simply rebuild with a lower
+optimization level (e.g. /Od.)
+
+Stop reading here
+=================
+You have enough information to build a working application.
+
+Debug versions have limited support
+===================================
+This solution includes limited support for debug versions of libpng.  You
+do not need these unless your own solution itself uses debug builds (it is
+far more effective to debug on the release builds, there is no point building
+a special debug build.)
+
+If, despite the previous paragraph, you still feel you need a debug build you
+will have to download the zlib source as well (http://www.zlib.net) and include
+the directory where you unpack it in zlib.props.  This solution will then be
+able to build a minimal zlib sufficient for libpng.  This build is only
+suitable for making a debug libpng.
+
+The debug build of libpng is minimally supported.  Support for debug builds of
+zlib is also minimal.  You really don't want to do this.
+
+This solution only supports the Multi-Threaded DLL C Runtime
+============================================================
+If you examine the solution you will find that it very deliberately lists
+exactly which MicroSoft DLLs it is linking against.  It explicitly links
+against msvcrt.lib.  The debug version links against msvcrtd.lib (this is
+why it is a debug version - it's nothing to do with having any special
+debug support, it doesn't).
+
+These versions of the MicroSoft C runtime correspond to the compiler flags
+/MD (release) and /MDd (debug) - the "Multi-Threaded DLL" implementation of the
+C runtime library.
+
+If you need to change this then you will have to make sure that both the
+compiler flags and the ".lib" in the linker dependences match up.  Fortunately
+neither zlib nor libpng require libraries other than a C runtime and
+kernel32.
+
+You cannot pass (FILE*) objects from a different runtime (including msvcrtd
+to msvcrt) to libpng.  If you do then your program will crash within libpng
+when it first makes a file read or write call.
+
+It is likely if you have read this far that you have found you can't avoid
+having multiple C runtimes in your program.  This is OK, it does work, but
+you will have to implement the libpng file read/write callbacks rather than
+using the internal libpng default.  This is easy.
--- a/projects/vstudio/vstudio.sln
+++ b/projects/vstudio/vstudio.sln
@@ -0,0 +1,49 @@
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual C++ Express 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libpng", "libpng\libpng.vcxproj", "{D6973076-9317-4EF2-A0B8-B7A18AC0713E}"
+	ProjectSection(ProjectDependencies) = postProject
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C} = {18040998-CC22-2BAE-FE7A-C0A3038F1D5C}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngtest", "pngtest\pngtest.vcxproj", "{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}"
+	ProjectSection(ProjectDependencies) = postProject
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E} = {D6973076-9317-4EF2-A0B8-B7A18AC0713E}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "zlib\zlib.vcxproj", "{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug Library|Win32 = Debug Library|Win32
+		Debug|Win32 = Debug|Win32
+		Release Library|Win32 = Release Library|Win32
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Debug Library|Win32.ActiveCfg = Debug Library|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Debug Library|Win32.Build.0 = Debug Library|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Debug|Win32.ActiveCfg = Debug|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Debug|Win32.Build.0 = Debug|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Release Library|Win32.ActiveCfg = Release Library|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Release Library|Win32.Build.0 = Release Library|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Release|Win32.ActiveCfg = Release|Win32
+		{D6973076-9317-4EF2-A0B8-B7A18AC0713E}.Release|Win32.Build.0 = Release|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Debug Library|Win32.ActiveCfg = Debug Library|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Debug Library|Win32.Build.0 = Debug Library|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Debug|Win32.Build.0 = Debug|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Release Library|Win32.ActiveCfg = Release Library|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Release Library|Win32.Build.0 = Release Library|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Release|Win32.ActiveCfg = Release|Win32
+		{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}.Release|Win32.Build.0 = Release|Win32
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}.Debug Library|Win32.ActiveCfg = Debug Library|Win32
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}.Debug Library|Win32.Build.0 = Debug Library|Win32
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}.Debug|Win32.ActiveCfg = Debug|Win32
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}.Debug|Win32.Build.0 = Debug|Win32
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}.Release Library|Win32.ActiveCfg = Debug|Win32
+		{18040998-CC22-2BAE-FE7A-C0A3038F1D5C}.Release|Win32.ActiveCfg = Debug|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ * zlib.props - location of zlib source and build
+ *
+ * libpng version 1.4.3 - June 26, 2010
+ *
+ * Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+
+ * You must edit this file to record the location of the zlib
+ * official and debug builds unless they are in the default
+ * directories:
+
+ *   official: zlib1
+ *   debug:    zlib debug
+ -->
+
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Label="Globals">
+    <!-- Place the name of the directory containing the official
+         build of zlib and the corresponding header files in this
+         property.  The directory is expected to contain at least:
+
+            zdll.lib  # The DLL import library
+            zlib.lib  # The static library
+            zlib.h    # The header file
+            zconf.h   # Another header file included by zlib.h
+     -->
+    <ZLib1Dir>..\..\..\..\zlib124-dll\zlib-1.2.4</ZLib1Dir>
+
+    <!-- Place the name of the directory containing the source of
+         zlib used for debugging in this property.
+         The directory need only contain the '.c' and '.h' files
+         from the source.  For your own sanity make sure that the
+         '.h' files in the source match those from the 'official'
+         build above.
+     -->
+    <ZLibSrcDir>..\..\..\..\zlib-1.2.4</ZLibSrcDir>
+  </PropertyGroup>
+</Project>
--- a/projects/vstudio/zlib/zlib.vcxproj
+++ b/projects/vstudio/zlib/zlib.vcxproj
@@ -0,0 +1,112 @@
+<?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>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="$(ZLibSrcDir)\adler32.c" />
+    <ClCompile Include="$(ZLibSrcDir)\compress.c" />
+    <ClCompile Include="$(ZLibSrcDir)\crc32.c" />
+    <ClCompile Include="$(ZLibSrcDir)\deflate.c" />
+    <ClCompile Include="$(ZLibSrcDir)\infback.c" />
+    <ClCompile Include="$(ZLibSrcDir)\inffast.c" />
+    <ClCompile Include="$(ZLibSrcDir)\inflate.c" />
+    <ClCompile Include="$(ZLibSrcDir)\inftrees.c" />
+    <ClCompile Include="$(ZLibSrcDir)\trees.c" />
+    <ClCompile Include="$(ZLibSrcDir)\uncompr.c" />
+    <ClCompile Include="$(ZLibSrcDir)\zutil.c" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(SolutionDir)\zlib.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+  </PropertyGroup>
+  <Import Project="$(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>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;ZLIB_DLL;_DEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <Version>1</Version>
+      <AdditionalDependencies>msvcrtd.lib;kernel32.lib</AdditionalDependencies>
+      <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+    </ClCompile>
+    <Link>
+      <TargetMachine>MachineX86</TargetMachine>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;DEBUGZLIB_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <TargetMachine>MachineX86</TargetMachine>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/projects/xcode/libpng.xcodeproj/project.pbxproj
+++ b/projects/xcode/libpng.xcodeproj/project.pbxproj
@@ -226,7 +226,7 @@
 				COPY_PHASE_STRIP = NO;
 				DYLIB_COMPATIBILITY_VERSION = 14;
 				DYLIB_CURRENT_VERSION = 14;
-				FRAMEWORK_VERSION = 1.4.0;
+				FRAMEWORK_VERSION = 1.4.3;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;
@@ -244,7 +244,7 @@
 			buildSettings = {
 				DYLIB_COMPATIBILITY_VERSION = 14;
 				DYLIB_CURRENT_VERSION = 14;
-				FRAMEWORK_VERSION = 1.4.0;
+				FRAMEWORK_VERSION = 1.4.3;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,8 +1,8 @@

-Makefiles for  libpng version 1.4.0 - January 3, 2010
+Makefiles for  libpng version 1.4.3 - June 26, 2010

 makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng14.so.14.1.4.0)
+                       (gcc, creates libpng14.so.14.1.4.3)
 makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
 makefile.knr      =>  Archaic UNIX Makefile that converts files with
                       ansi2knr (Requires ansi2knr.c from
@@ -20,7 +20,7 @@ Makefiles for  libpng version 1.4.0 - January 3, 2010
 makefile.dec      =>  DEC Alpha UNIX makefile
 makefile.dj2      =>  DJGPP 2 makefile
 makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng14.so.14.1.4.0)
+                       gcc, creates libpng14.so.14.1.4.3)
 makefile.freebsd  =>  FreeBSD makefile
 makefile.gcc      =>  Generic gcc makefile
 makefile.hpgcc    =>  HPUX makefile using gcc
@@ -36,12 +36,12 @@ Makefiles for  libpng version 1.4.0 - January 3, 2010
 makefile.os2      =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
 makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
 makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng14.so.14.1.4.0)
+                       creates libpng14.so.14.1.4.3)
 makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
 makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng14.so.14.1.4.0)
+                       creates libpng14.so.14.1.4.3)
 makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng14.so.14.1.4.0)
+                       creates libpng14.so.14.1.4.3)
 makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
 makefile.sunos    =>  Sun makefile
 makefile.32sunu   =>  Sun Ultra 32-bit makefile
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@

 # Modeled after libxml-config.

-version=1.4.0
+version=1.4.3
 prefix=""
 libdir=""
 libs=""
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@ includedir=@includedir@/libpng14

 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.4.0
+Version: 1.4.3
 Libs: -L${libdir} -lpng14
 Cflags: -I${includedir}
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -1,6 +1,6 @@
 # makefile for libpng on Solaris 2.x with cc
 # Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2010 Glenn Randers-Pehrson
 # Copyright (C) 1998 Greg Roelofs
 # Copyright (C) 1996, 1997 Andreas Dilger

@@ -11,16 +11,12 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.14
-OLDSOVER=libpng.so.14.$(PNGMIN)

 # Utilities:
 CC=cc
@@ -113,10 +109,7 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	@case "`type ld`" in *ucb*) \
 	echo; \
 	echo '## WARNING:'; \
@@ -130,11 +123,7 @@ $(LIBSOVER): $(OBJSDLL)
 	;; \
 	esac
 	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
-	 -o $(LIBSOVER) $(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(OLDSOMAJ) \
-	 -o $(OLDSOVER)  $(OBJSDLL)
+	 -o $(LIBSOMAJ) $(OBJSDLL)

 pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -158,24 +147,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
 	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ).$(PNGVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -229,7 +210,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -1,6 +1,6 @@
 # makefile for libpng on Solaris 2.x with cc
 # Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2010 Glenn Randers-Pehrson
 # Copyright (C) 1998 Greg Roelofs
 # Copyright (C) 1996, 1997 Andreas Dilger

@@ -11,16 +11,12 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.14
-OLDSOVER=libpng.so.14.$(PNGMIN)

 # Utilities:
 CC=cc
@@ -113,10 +109,7 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	@case "`type ld`" in *ucb*) \
 	echo; \
 	echo '## WARNING:'; \
@@ -130,11 +123,7 @@ $(LIBSOVER): $(OBJSDLL)
 	;; \
 	esac
 	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
-	 -o $(LIBSOVER) $(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(OLDSOMAJ) \
-	 -o $(OLDSOVER)  $(OBJSDLL)
+	 -o $(LIBSOMAJ) $(OBJSDLL)

 pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -158,24 +147,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
 	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ).$(PNGVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -229,7 +210,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -23,8 +23,6 @@ LN_SF = ln -f -s

 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 prefix=/usr/local
 INCPATH=$(prefix)/include
@@ -48,7 +46,7 @@ LDDEBUG =
 CRELEASE = -O2
 LDRELEASE = -s
 WARNMORE=-W -Wall
-CFLAGS = -I$(ZLIBINC) $(WARNMORE) $(CRELEASE)
+CFLAGS = -D_ALL_SOURCE -I$(ZLIBINC) $(WARNMORE) $(CRELEASE)
 LDFLAGS = -L. -L$(ZLIBLIB) -lpng14 -lz -lm $(LDRELEASE)

 # File extensions
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -1,6 +1,6 @@
 # makefile for libpng on BeOS x86 ELF with gcc
 # modified from makefile.linux by Sander Stoks
-# Copyright (C) 2002, 2006, 2008 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2008, 2010 Glenn Randers-Pehrson
 # Copyright (C) 1999 Greg Roelofs
 # Copyright (C) 1996, 1997 Andreas Dilger
 #
@@ -11,16 +11,12 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.14
-OLDSOVER=libpng.so.14.$(PNGMIN)

 # Utilities:
 CC=gcc
@@ -105,16 +101,9 @@ $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
 	cp $(LIBSO)* /boot/home/config/lib

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	$(CC) -nostart -Wl,-soname,$(LIBSOMAJ) -o \
-	$(LIBSOVER) $(OBJSDLL) $(LDFLAGS)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(CC) -nostart -Wl,-soname,$(OLDSOMAJ) -o \
-	$(OLDSOVER) $(OBJSDLL) $(LDFLAGS)
+	$(LIBSOMAJ) $(OBJSDLL) $(LDFLAGS)

 pngtest: pngtest.o $(LIBSO)
 	$(CC) -L$(ZLIBLIB) -L. -lz -lpng14 -o pngtest pngtest.o
@@ -138,23 +127,17 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
+
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -206,7 +189,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
 	$(LIBSO) $(LIBSOMAJ)* pngtesti \
-	$(OLDSOVER) \
 	libpng.pc

 # DO NOT DELETE THIS LINE -- make depend depends on it.
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,12 +23,12 @@

 VERMAJ = 1
 VERMIN = 4
-VERMIC = 0
+VERMIC = 3
 VER = $(VERMAJ).$(VERMIN).$(VERMIC)
 NAME = libpng
 PACKAGE = $(NAME)-$(VER)

-BIN = libpng14-0.dll libpng-14.dll
+BIN = libpng14-0.dll
 LIB = libpng14.a libpng14.dll.a libpng.a libpng.dll.a scripts/png32ce.def
 INCLUDE = png.h pngconf.h pngpriv.h
 PC = libpng14.pc libpng.pc
@@ -64,7 +64,7 @@ copy-src:

 compilation:
 	@echo " * Compilation of $(PACKAGE)"
-	cd $(PACKAGE) && CPPFLAGS="$(CPPFLAGS) -DPNG_BUILD_DLL -DPNG_CONSOLE_IO_SUPPORTED -DPNG_NO_MMX_CODE -D_WIN32_WCE=0x0420" CFLAGS="$(CFLAGS) -mms-bitfields -O3 -pipe -fomit-frame-pointer" LDFLAGS="$(LDFLAGS) -Wl,--enable-auto-import -Wl,-s" ./configure --prefix=/opt/wince --host=arm-mingw32ce && make
+	cd $(PACKAGE) && CPPFLAGS="$(CPPFLAGS) -DPNG_BUILD_DLL -DPNG_CONSOLE_IO_SUPPORTED -D_WIN32_WCE=0x0420" CFLAGS="$(CFLAGS) -mms-bitfields -O3 -pipe -fomit-frame-pointer" LDFLAGS="$(LDFLAGS) -Wl,--enable-auto-import -Wl,-s" ./configure --prefix=/opt/wince --host=arm-mingw32ce && make

 copy:
 	@echo " * Copy of binary and development files"
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -68,8 +68,6 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng14
 PNGMAJ = 14
 CYGDLL = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=cygpng$(CYGDLL).dll
 STATLIB=libpng.a
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -1,5 +1,5 @@
 # makefile for libpng on Darwin / Mac OS X
-# Copyright (C) 2002, 2004, 2006, 2008 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2004, 2006, 2008, 2010 Glenn Randers-Pehrson
 # Copyright (C) 2001 Christoph Pfisterer
 # derived from makefile.linux:
 #  Copyright (C) 1998, 1999 Greg Roelofs
@@ -22,16 +22,12 @@ ZLIBINC=../zlib
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).dylib
 LIBSOMAJ=$(LIBNAME).$(PNGMAJ).dylib
-LIBSOVER=$(LIBNAME).$(PNGVER).dylib
+LIBSOREL=$(LIBNAME).$(PNGMAJ).$(RELEASE).dylib
 OLDSO=libpng.dylib
-OLDSOMAJ=libpng.14.dylib
-OLDSOVER=libpng.14.$(PNGMIN).dylib

 # Utilities:
 CC=cc
@@ -101,21 +97,11 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	$(CC) -dynamiclib \
 	 -install_name $(LIBPATH)/$(LIBSOMAJ) \
 	 -current_version 14 -compatibility_version 14 \
-	 -o $(LIBSOVER) \
-	 $(OBJSDLL) -L$(ZLIBLIB) -lz
-
-$(OLDSOVER): $(OBJSDLL)
-	$(CC) -dynamiclib \
-	 -install_name $(LIBPATH)/$(OLDSOMAJ) \
-	 -current_version 14 -compatibility_version 14 \
-	 -o $(OLDSOVER) \
+	 -o $(LIBSOMAJ) \
 	 $(OBJSDLL) -L$(ZLIBLIB) -lz

 pngtest: pngtest.o $(LIBSO)
@@ -141,24 +127,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSO) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBNAME).$(PNGVER)*.dylib
-	-@$(RM_F) $(DL)/$(LIBNAME).$(PNGMAJ)*.dylib
 	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/libpng.3.$(PNGMIN)*.dylib
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -209,7 +187,6 @@ test-installed:

 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
-	$(OLDSOVER) \
 	libpng.pc $(LIBNAME).*dylib pngtesti

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -1,5 +1,5 @@
 # makefile for libpng on DEC Alpha Unix
-# Copyright (C) 2000-2002, 2006 Glenn Randers-Pehrson
+# Copyright (C) 2000-2002, 2006, 2010 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 #
 # This code is released under the libpng license.
@@ -8,17 +8,13 @@

 # Library name:
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng14

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.14
-OLDSOVER=libpng.so.14.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -90,17 +86,10 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJS)
+$(LIBSOMAJ): $(OBJS)
 	$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
 	-soname $(LIBSOMAJ)

-$(OLDSOVER): $(OBJS)
-	$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
-	-soname $(OLDSOMAJ)
-
 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

@@ -123,29 +112,22 @@ install-static: install-headers libpng.a
 	-@/bin/rm -f $(DL)/libpng.a
 	(cd $(DL); $(LN_SF)(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@/bin/rm -f $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@/bin/rm -f $(DL)/$(LIBSOMAJ)
-	-@/bin/rm -f $(DL)/$(OLDSO)
-	-@/bin/rm -f $(DL)/$(OLDSOMAJ)
-	-@/bin/rm -f $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
+	-@$(RM_F) $(DL)/$(OLDSO)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF)(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF)(LIBSOMAJ) $(LIBSO))
+	$(LN_SF) $(LIBSOREL) $(LIBSO); \
+	$(LN_SF) $(LIBSO) $(OLDSO))
 	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-	-@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
-	-@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
+	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
 	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
 	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
-	(cd $(DL)/pkgconfig; $(LN_SF)(LIBNAME).pc libpng.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
@@ -193,7 +175,6 @@ test-installed:
 clean:
 	/bin/rm -f *.o libpng.a pngtest pngtesti pngout.png \
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
-	$(OLDSOVER) \
 	libpng.pc

 # DO NOT DELETE THIS LINE -- make depend depends on it.
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -1,5 +1,5 @@
 # makefile for libpng.a and libpng14.so on Linux ELF with gcc
-# Copyright (C) 1998, 1999, 2002, 2006, 2008 Greg Roelofs
+# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010 Greg Roelofs
 # and Glenn Randers-Pehrson
 # Copyright (C) 1996, 1997 Andreas Dilger
 #
@@ -16,16 +16,13 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.so
 OLDSOMAJ=libpng.so.14
-OLDSOVER=libpng.so.14.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -136,19 +133,10 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL) libpng.syms
+$(LIBSOMAJ): $(OBJSDLL) libpng.syms
 	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
 	-Wl,-version-script,libpng.syms \
-	-o $(LIBSOVER) \
-	$(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL) libpng.syms
-	$(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
-	-Wl,-version-script,libpng.syms \
-	-o $(OLDSOVER) \
+	-o $(LIBSOMAJ) \
 	$(OBJSDLL)

 pngtest: pngtest.o $(LIBSO)
@@ -183,23 +171,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -251,7 +232,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
 	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -1,5 +1,5 @@
 # makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
-# Copyright (C) 1999-2002, 2006, 2009 Glenn Randers-Pehrson
+# Copyright (C) 1999-2002, 2006, 2009, 2010 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42
 # contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
 #
@@ -21,16 +21,12 @@ ZLIBINC=/opt/zlib/include
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).sl
 LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).sl.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.sl
-OLDSOMAJ=libpng.sl.14
-OLDSOVER=libpng.sl.14.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -108,16 +104,9 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	$(LD) -b +s \
-	+h $(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(LD) -b +s \
-	+h $(OLDSOMAJ) -o $(OLDSOVER) $(OBJSDLL)
+	+h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)

 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
@@ -141,23 +130,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -211,7 +193,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -1,5 +1,5 @@
 # makefile for libpng on HP-UX using GCC with the HP ANSI/C linker.
-# Copyright (C) 2002, 2006-2008 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006-2008, 2010 Glenn Randers-Pehrson
 # Copyright (C) 2001, Laurent faillie
 # Copyright (C) 1998, 1999 Greg Roelofs
 # Copyright (C) 1996, 1997 Andreas Dilger
@@ -11,16 +11,12 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).sl
 LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).sl.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.sl
-OLDSOMAJ=libpng.sl.14
-OLDSOVER=libpng.sl.14.$(PNGMIN)

 # Utilities:
 CC=gcc
@@ -116,16 +112,9 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	$(LD) -b +s \
-	+h $(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(LD) -b +s \
-	+h $(OLDSOMAJ) -o $(OLDSOVER) $(OBJSDLL)
+	+h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)

 pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -150,23 +139,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -220,7 +202,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -1,5 +1,5 @@
 # makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
-# Copyright (C) 1999-2002, 2006 Glenn Randers-Pehrson
+# Copyright (C) 1999-2002, 2006, 2010 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42
 # contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
 #
@@ -21,16 +21,12 @@ ZLIBINC=/opt/zlib/include
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
 LIBSO=$(LIBNAME).sl
 LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).sl.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.sl
-OLDSOMAJ=libpng.sl.14
-OLDSOVER=libpng.sl.14.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -105,16 +101,9 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
 	$(LD) -b +s \
-	+h $(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(LD) -b +s \
-	+h $(OLDSOMAJ) -o $(OLDSOVER) $(OBJSDLL)
+	+h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)

 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
@@ -138,23 +127,16 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -208,7 +190,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -1,5 +1,5 @@
 # makefile for libpng.a and libpng14.so on Linux ELF with gcc
-# Copyright (C) 1998, 1999, 2002, 2006, 2008 Greg Roelofs and
+# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010 Greg Roelofs and
 # Glenn Randers-Pehrson
 # Copyright (C) 1996, 1997 Andreas Dilger
 #
@@ -10,16 +10,13 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)
+RELEASE = 3

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
+LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.14
-OLDSOVER=libpng.so.14.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -114,16 +111,8 @@ libpng-config:
 $(LIBSO): $(LIBSOMAJ)
 	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

-$(LIBSOMAJ): $(LIBSOVER)
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
-
-$(LIBSOVER): $(OBJSDLL)
-	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOVER) $(OBJSDLL)
-
-$(OLDSOVER): $(OBJSDLL)
-	$(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
-	-o $(OLDSOVER) \
-	$(OBJSDLL)
+$(LIBSOMAJ): $(OBJSDLL)
+	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)

 pngtest: pngtest.o $(LIBSO)
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -157,23 +146,17 @@ install-static: install-headers libpng.a
 	-@$(RM_F) $(DL)/libpng.a
 	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
+install-shared: install-headers $(LIBSOMAJ) libpng.pc
 	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
+	-@$(RM_F) $(DL)/$(LIBSO)
+	-@$(RM_F) $(DL)/$(LIBSOREL)
 	-@$(RM_F) $(DL)/$(OLDSO)
-	-@$(RM_F) $(DL)/$(OLDSOMAJ)
-	-@$(RM_F) $(DL)/$(OLDSOVER)*
-	cp $(LIBSOVER) $(DL)
-	cp $(OLDSOVER) $(DL)
-	chmod 755 $(DL)/$(LIBSOVER)
-	chmod 755 $(DL)/$(OLDSOVER)
+	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
+	chmod 755 $(DL)/$(LIBSOREL)
 	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
+	$(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
@@ -225,7 +208,6 @@ test-installed:
 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
 	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
-	$(OLDSOVER) \
 	libpng.pc

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -14,6 +14,10 @@

 # Built from makefile.cygwin

+# This makefile expects to be run under the MSYS shell (part of
+# the MINGW project) and not under CMD.EXE which does not provide
+# "cat" or "sed".
+
 # This makefile intends to support building outside the src directory
 # if desired. When invoking it, specify an argument to SRCDIR on the
 # command line that points to the top of the directory where your source
@@ -68,8 +72,6 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng14
 PNGMAJ = 14
 MINGDLL = 14
-PNGMIN = 1.4.0
-PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=libpng$(MINGDLL).dll
 STATLIB=libpng.a
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng14

 LIB=	png14
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.4.0
+SHLIB_MINOR=	1.4.3
 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=	3
-SHLIB_MINOR=	1.4.0
+SHLIB_MINOR=	1.4.3
 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/Show More
+++ b/Show More
Author	SHA1	Message	Date
Glenn Randers-Pehrson	a582b8f840	[master] Imported from libpng-1.4.3.tar	2010-06-25 20:19:59 -05:00
Glenn Randers-Pehrson	5316f66005	[master] The "vstudio" project was missing from the .zip and .7z distributions	2010-05-17 08:31:53 -05:00
Glenn Randers-Pehrson	f86905457a	[master] Added missing quotation marks in the aix block of configure.ac	2010-05-14 15:40:31 -05:00
Glenn Randers-Pehrson	abb211c4e8	[master] Bump to version 1.4.3beta01	2010-05-14 15:38:51 -05:00
Glenn Randers-Pehrson	bb56c39d16	[master] Imported from libpng-1.4.2.tar	2010-05-06 06:48:47 -05:00
Glenn Randers-Pehrson	77237196c7	[master] Imported from libpng-1.4.2rc06.tar	2010-05-04 09:34:13 -05:00
Glenn Randers-Pehrson	a310a3b398	[master] Moved declarations of umsg[] inside the proper #ifdef blocks in pngrutil.c	2010-05-04 09:32:02 -05:00
Glenn Randers-Pehrson	e0f6c7d90b	[master] Revert to version 1.4.2rc05	2010-05-04 09:24:32 -05:00
Glenn Randers-Pehrson	a1587302aa	[master] Use bitwise AND instead of integer arithmetic MOD in pngrutil.c calculation of the png_ptr->rowbuf pointer into png_ptr->big_row_buf.	2010-05-03 21:57:13 -05:00
Glenn Randers-Pehrson	cc0bff446b	[master] Changed a typecast in pngrutil.c to stifle compiler warning in the calculation of the png_ptr->rowbuf pointer into png_ptr->big_row_buf.	2010-05-03 21:28:50 -05:00
Glenn Randers-Pehrson	9b8ddff5b7	[master] Added a typecast in pngrutil.c to stifle compiler warning in the calculation of the png_ptr->rowbuf pointer into png_ptr->big_row_buf.	2010-05-03 15:19:11 -05:00
Glenn Randers-Pehrson	ac4942e26b	[master] Moved declarations of umsg[] inside proper #ifdef blocks in pngrutil.c	2010-05-03 15:18:09 -05:00
Glenn Randers-Pehrson	2c55e3e917	[master] Bump to version 1.4.2rc06	2010-04-29 11:47:15 -05:00
Glenn Randers-Pehrson	db082802c6	[master] Bump to version 1.4.2rc05	2010-04-29 11:44:55 -05:00
Glenn Randers-Pehrson	b367fb5ac6	[master] Bump to version 1.4.2rc06	2010-04-29 11:20:42 -05:00
Glenn Randers-Pehrson	e9ab2f8d94	[master] Imported from libpng-1.4.2rc05.tar	2010-04-29 11:08:01 -05:00
Glenn Randers-Pehrson	a845cca037	[master] Corrected protection of png_get_user_transform_ptr. The API declaration in png.h is removed if both READ and WRITE USER_TRANSFORM are turned off but was left defined in pngtrans.c	2010-04-29 10:43:23 -05:00
Glenn Randers-Pehrson	3ab6ef0aa1	[master] Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED in gregbook/readpng2.c to PNG_HANDLE_AS_UNKNOWN_SUPPORTED	2010-04-29 10:34:18 -05:00
Glenn Randers-Pehrson	198ed18b9e	[master] Bump to version 1.4.2rc05	2010-04-29 09:41:01 -05:00
Glenn Randers-Pehrson	9110473f93	[master] Removed dummy_inflate.c and uncompr.c from contrib/pngminim/encoder	2010-04-29 09:38:05 -05:00
Glenn Randers-Pehrson	97313e0aab	[master] Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined.	2010-04-29 09:22:01 -05:00
Glenn Randers-Pehrson	8876e74e43	[master] Remove mislocated files from projects/visualc6	2010-04-26 23:02:39 -05:00
Glenn Randers-Pehrson	510227e39e	[master] Imported from libpng-1.4.2rc04.tar	2010-04-26 22:51:30 -05:00
Glenn Randers-Pehrson	7a1f214166	[master] Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in contrib/pngminim/decoder/pngusr.h to make a smaller decoder application.	2010-04-26 22:41:53 -05:00
Glenn Randers-Pehrson	5913dd10f1	[master] Added the "vstudio" project to replace "visualc6" and "visualc71" which will be removed from libpng-1.5.0.	2010-04-26 16:28:35 -05:00
Glenn Randers-Pehrson	087ebd80da	[master] Imported from libpng-1.4.2rc03.tar	2010-04-24 13:58:16 -05:00
Glenn Randers-Pehrson	bc9267e3a6	[master] Move png_set_quantize and png_do_quantize to proper locations in docs.	2010-04-16 10:41:02 -05:00
Glenn Randers-Pehrson	a019c335c9	[master] Bump to version 1.4.2rc03	2010-04-16 10:25:20 -05:00
Glenn Randers-Pehrson	ed49c8c1b6	[master] Trivial revision of documentation.	2010-04-16 10:04:53 -05:00
Glenn Randers-Pehrson	2a243fc074	[master] Added some "(long)" typecasts to printf calls in png_handle_cHRM().	2010-04-16 09:41:27 -05:00
Glenn Randers-Pehrson	47045ce402	[master] Bump to version 1.4.2rc02	2010-04-16 07:45:21 -05:00
Glenn Randers-Pehrson	d6e67586bf	[master] Imported from libpng-1.4.2rc02.tar	2010-04-16 07:28:21 -05:00
Glenn Randers-Pehrson	6e9783bd25	[master] Updated the scripts/*.def lists to include png_set_quantize()	2010-04-16 07:26:01 -05:00
Glenn Randers-Pehrson	8dc3729522	[master] Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect more accurately what it actually does. At the same time, renamed the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.	2010-04-16 07:24:52 -05:00
Glenn Randers-Pehrson	7aad4e7fb4	[master] Expanded CHANGES entry about disabling dithering support.	2010-04-13 22:31:25 -05:00
Glenn Randers-Pehrson	930af7d50b	[master] Documented the fact that png_set_dither() is no longer supported.	2010-04-13 22:08:21 -05:00
Glenn Randers-Pehrson	0f544f62d6	[master] Imported from libpng-1.4.2rc01.tar	2010-04-10 06:43:07 -05:00
Glenn Randers-Pehrson	398c212955	[master] Bump to version 1.4.2beta02	2010-04-01 07:52:00 -05:00
Glenn Randers-Pehrson	2ec1fc60c3	[master] Imported from libpng-1.4.2beta01.tar	2010-04-01 07:41:11 -05:00
Glenn Randers-Pehrson	c01ee053b1	[master] Imported from libpng-1.4.1.tar	2010-02-25 05:45:01 -06:00
Glenn Randers-Pehrson	b0baee5e36	[master] Removed unused gzio.c from contrib/pngminim gather and makefile scripts. This is necessary when libz is updated to version 1.2.4.	2010-02-21 23:12:32 -06:00
Glenn Randers-Pehrson	b55295cb12	[master] Imported from libpng-1.4.1rc04.tar	2010-02-19 19:23:47 -06:00
Glenn Randers-Pehrson	5928ee97ca	[master] Define _ALL_SOURCE in configure.ac, makefile.aix, and CMakeLists.txt when using the AIX compiler.	2010-02-19 19:22:08 -06:00
Glenn Randers-Pehrson	2445ad4331	[master] Imported from libpng-1.4.1rc03.tar	2010-02-19 15:09:07 -06:00
Glenn Randers-Pehrson	93d6d9d835	[master] Define _ALLSOURCE in pngconf.h when building with nonANSI AIX compiler. otherwise AIX reserves "jmpbuf" and renames it to "__jmpbuf".	2010-02-19 15:02:46 -06:00
Glenn Randers-Pehrson	d207e6a6ad	[master] Removed obsolete unused MMX-querying support from contrib/gregbook	2010-02-19 07:52:06 -06:00
Glenn Randers-Pehrson	df6f3f404a	[master] Noted in scripts/makefile.mingw that it expects to be run under MSYS.	2010-02-18 23:04:25 -06:00
Glenn Randers-Pehrson	357c1c8c53	[master] Imported from libpng-1.4.1rc02.tar	2010-02-18 07:07:19 -06:00
Glenn Randers-Pehrson	44827ccad8	[master] Fixed typo in ANNOUNCE and CHANGES.	2010-02-14 07:43:22 -06:00
Glenn Randers-Pehrson	0d1a2dd7a9	[master] Bump to version 1.4.1beta13	2010-02-14 07:42:15 -06:00
Glenn Randers-Pehrson	471c9b47fe	[master] Imported from libpng-1.4.1beta12.tar	2010-02-14 07:05:57 -06:00
Glenn Randers-Pehrson	23b9a2fda0	[master] Fixed incorrect typecast of png_get_user_malloc_max() in pngget.c	2010-02-14 06:48:09 -06:00
Glenn Randers-Pehrson	7d6103ad6c	[master] Imported from libpng-1.4.1beta11.tar	2010-02-12 21:33:07 -06:00
Glenn Randers-Pehrson	ec39f8f8d7	[master] Update announcements about png_decompress_chunk().	2010-02-12 21:25:37 -06:00
Glenn Randers-Pehrson	a2cde53c87	[master]	2010-02-12 21:07:14 -06:00
Glenn Randers-Pehrson	13714e87f2	[master] Imported from libpng-1.4.1beta10.tar	2010-02-08 15:58:31 -06:00
Glenn Randers-Pehrson	9101d75316	[master] Return allocated "old_buffer" in png_push_save_buffer() before calling png_error(), to avoid a potential memory leak.	2010-02-08 15:56:17 -06:00
Glenn Randers-Pehrson	233edbf415	[master] Imported from libpng-1.4.1beta09.tar	2010-02-07 23:05:33 -06:00
Glenn Randers-Pehrson	bd209f75fa	[master] Reverted to original png_push_save_buffer() code.	2010-02-07 23:02:42 -06:00
Glenn Randers-Pehrson	27854a478e	[master] Fixed incorrect test in new png_push_save_buffer() code.	2010-02-07 20:02:02 -06:00
Glenn Randers-Pehrson	f12a87a96c	[master] Imported from libpng-1.4.1beta08.tar	2010-02-06 19:48:53 -06:00
Glenn Randers-Pehrson	cb4358ddbb	[master] Revert to version 1.4.1beta07	2010-02-06 13:48:45 -06:00
Glenn Randers-Pehrson	c4819d78ba	[master] Fix scripting typo in pngwrite.c	2010-02-06 13:44:20 -06:00
Glenn Randers-Pehrson	0b721cd4c4	[master] Bump to version libpng-1.4.1beta08	2010-02-06 13:03:51 -06:00
Glenn Randers-Pehrson	b025757328	[master] Bump to version libpng-1.4.1beta07	2010-02-06 12:17:51 -06:00
Glenn Randers-Pehrson	4bd73b6947	[master] Revised png_push_save_buffer() to do fewer but larger png_mallocs Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as png_ptr->png_user_chunk_malloc_max.	2010-02-06 12:15:07 -06:00
Glenn Randers-Pehrson	f3c42680db	[master] Fixed an incorrect #ifdef in pngwrite.c	2010-02-06 10:44:22 -06:00
Glenn Randers-Pehrson	c10066205d	[master] Fixed indentation in some png.h comments.	2010-02-05 17:31:42 -06:00
Glenn Randers-Pehrson	21b7aaa428	[master] Imported from libpng-1.4.1beta07.tar	2010-02-05 16:30:38 -06:00
Glenn Randers-Pehrson	d7225fdfce	[master] Folded some long lines in png.h Most of them were too long because of recent insertion of PNG_DEPSTRUCT.	2010-02-05 15:35:41 -06:00
Glenn Randers-Pehrson	deb870c77d	[master] Added defineable PNG_USER_CHUNK_CACHE_MAX and PNG_USER_CHUNK_MALLOC_MAX	2010-02-05 15:32:42 -06:00
Glenn Randers-Pehrson	c05538959b	[master] Revised documentation to mention the change in the prototype for the user malloc_fn().	2010-02-02 06:47:13 -06:00
Glenn Randers-Pehrson	f6c761dda1	[master] Imported from libpng-1.4.1beta06.tar	2010-01-28 07:22:50 -06:00
Glenn Randers-Pehrson	877b08d6d2	[master] Implement two-pass png_decompress_chunk() function suggested by John Bowler. Does not waste memory, does only one malloc() to the measured decompressed size.	2010-01-28 07:16:15 -06:00
Glenn Randers-Pehrson	a69064328b	[master] Undo recent pngtest changes The problem was with a buggy compiler (gcc-4.0.1) not a libpng problem and not worth attempting to work around.	2010-01-27 07:05:02 -06:00
Glenn Randers-Pehrson	01b9566e50	[master] Use int copies instead of longs in pngtest.c to try to appease the Mac compiler	2010-01-26 23:27:21 -06:00
Glenn Randers-Pehrson	ca3a100be6	[master] Revised pngtest.c for the sake of an optimizing compiler	2010-01-26 22:45:58 -06:00
Glenn Randers-Pehrson	1655e4ddb0	[master] Imported from libpng-1.4.1beta05.tar	2010-01-26 06:56:04 -06:00
Glenn Randers-Pehrson	526f839764	[master] Relocated "int k" declaration in pngtest.c to work around a compiler optimization bug.	2010-01-26 06:51:00 -06:00
Glenn Randers-Pehrson	1a86bd2a09	[master] Revised png_decompress_chunk() to improve speed and memory usage when decoding large chunks.	2010-01-22 22:50:46 -06:00
Glenn Randers-Pehrson	610e7b5bd6	[master] Added png_set\|get_chunk_malloc_max() functions.	2010-01-22 19:48:40 -06:00
Glenn Randers-Pehrson	86f6c04d84	[master] Imported from libpng-1.4.1beta04.tar	2010-01-22 19:34:44 -06:00
Glenn Randers-Pehrson	fb3a1da4bb	[master] Bump to version 1.4.1beta04	2010-01-22 19:29:47 -06:00
Glenn Randers-Pehrson	525efcbb7b	[master] Imported from libpng-1.4.1rc01.tar	2010-01-16 08:05:12 -06:00
Glenn Randers-Pehrson	ea4340e1ec	[master] Imported from libpng-1.4.1beta03.tar	2010-01-10 16:53:46 -06:00
Glenn Randers-Pehrson	91f3864fbd	[master] Removed png_set_premultiply_alpha() from scripts/*.def Implementation of this function was postponed.	2010-01-10 16:51:01 -06:00
Glenn Randers-Pehrson	14fa704caf	[master] Imported from libpng-1.4.1beta02.tar	2010-01-09 13:13:30 -06:00
Glenn Randers-Pehrson	ad1f8180a5	[master] Updated makefiles to link to libpng14.so.14.1	2010-01-07 23:28:16 -06:00
Glenn Randers-Pehrson	e364f899af	[master] Imported from libpng-1.4.1beta01.tar	2010-01-07 22:39:45 -06:00
Glenn Randers-Pehrson	40683870ea	[master] Update PNG_LIBPNG_VER_NUM to 1.4.1	2010-01-07 22:27:30 -06:00
Glenn Randers-Pehrson	7569d7c069	[master] Updated documentation about png_set_compression_buffer_size().	2010-01-07 11:37:53 -06:00
Glenn Randers-Pehrson	c87ddbb3ce	[master] Make png_set\|get_compression_buffer_size() available even when PNG_WRITE_SUPPORTED is not enabled. There was no good reason for this restriction, and PNG readers can gain a speed benefit in reading large iCCP chunks by increasing png_ptr->zbuf_size via these functions.	2010-01-07 11:10:16 -06:00
Glenn Randers-Pehrson	793fedcf57	[master] Revise makefile.linux to build libpng.so.14.1	2010-01-07 11:00:07 -06:00
Glenn Randers-Pehrson	74fd86a69e	[master] Updated copyright year in revised makefiles.	2010-01-07 08:19:31 -06:00
Glenn Randers-Pehrson	f234091207	[master] Restored "; \" that was lost from makefiles in the previous change	2010-01-07 08:14:16 -06:00
Glenn Randers-Pehrson	772b72139a	[master] Revised the makefiles to install the same files and symbolic links as configure, except for libpng.la and libpng14.la.	2010-01-06 23:11:53 -06:00
Glenn Randers-Pehrson	6e6a844baf	[master] Revise scripts/makefile.linux to not make libpng.so.NN	2010-01-06 22:30:32 -06:00
Glenn Randers-Pehrson	2f2f80273b	[master] Undid recent change to the Makefiles. People don't need libpng.so.NN	2010-01-06 17:39:57 -06:00
Glenn Randers-Pehrson	353d8860ac	[master] Revised scripts/makefile.linux to make the same files as configure, except for libpng.la and libpng14.la. Many other scripts to be fixed soon.	2010-01-06 14:45:03 -06:00
Glenn Randers-Pehrson	fab96cb72a	[master] Revised Makefile.am and Makefile.in to make libpng.so.14, libpng.sl.14, and libpng.14.dylib links in the installed library directory.	2010-01-06 14:16:49 -06:00
Glenn Randers-Pehrson	2203e41900	[master] Revised Makefile.am and Makefile.in to remove references to Y2KINFO, KNOWNBUG, and libpng.la (Robert Schwebel).	2010-01-04 06:26:41 -06:00
Glenn Randers-Pehrson	e16f2bc5f7	[master] Updated CMakeLists.txt for consistent indentation and to avoid an unclosed if-statement warning (Philip Lowman).	2010-01-04 06:25:28 -06:00
Glenn Randers-Pehrson	2381cf3269	[master] Bump to version 1.4.1beta01	2010-01-03 17:02:38 -06:00