[libpng10] Imported from libpng-1.0.23rc1.tar

[libpng10] Imported from libpng-1.0.22.tar
[libpng10] Imported from libpng-1.0.22rc1.tar
2025-07-10 18:04:09 +02:00 · 2011-09-03 12:23:49 -05:00 · 2011-09-03 12:23:46 -05:00 · 2011-09-03 12:23:43 -05:00 · 2011-09-03 12:23:41 -05:00 · 2011-09-03 12:23:38 -05:00
69 changed files with 1701 additions and 1604 deletions
--- a/56
+++ b/56
@@ -1,5 +1,5 @@

-Libpng 1.2.19beta2 - May 19, 2007
+Libpng 1.0.23rc1 - December 18, 2006

 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -9,44 +9,60 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script

-   libpng-1.2.19beta2.tar.gz
-   libpng-1.2.19beta2.tar.bz2
+   libpng-1.0.23rc1.tar.gz
+   libpng-1.0.23rc1.tar.bz2

 Source files with LF line endings (for Unix/Linux) without the
 "configure" script

-   libpng-1.2.19beta2-no-config.tar.gz
-   libpng-1.2.19beta2-no-config.tar.bz2
+   libpng-1.0.23rc1-no-config.tar.gz
+   libpng-1.0.23rc1-no-config.tar.bz2

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

-   lp1219b02.zip
-   lp1219b02.tar.bz2
+   lp1023r01.zip
+   lp1023r01.tar.bz2

 Project files

-   libpng-1.2.19beta2-project-netware.zip
-   libpng-1.2.19beta2-project-wince.zip
+   libpng-1.0.23rc1-project-netware.zip
+   libpng-1.0.23rc1-project-wince.zip

 Other information:

-   libpng-1.2.19beta2-README.txt
-   libpng-1.2.19beta2-KNOWNBUGS.txt
-   libpng-1.2.19beta2-LICENSE.txt
-   libpng-1.2.19beta2-Y2K-compliance.txt
+   libpng-1.0.23rc1-README.txt
+   libpng-1.0.23rc1-KNOWNBUGS.txt
+   libpng-1.0.23rc1-LICENSE.txt
+   libpng-1.0.23rc1-Y2K-compliance.txt

-Changes since the last public release (1.2.18):
+Changes since the last public release (1.0.22):

-version 1.2.19beta1 [May 18, 2007]
-  Changed "const static" to "static PNG_CONST" everywhere, mostly undoing
-    change of libpng-1.2.17beta2.  Changed other "const" to "PNG_CONST"
+version 1.2.15beta1 [December 3, 2006]
+  Generated configure with autoconf-2.61 instead of 2.60
+  Revised configure.ac to update libpng.pc and libpng-config.

-version 1.2.19beta2 [May 19, 2007]
-  Fixed png_do_expand() to only use the appropriate bits of tRNS value.
+version 1.2.15beta2 [December 3, 2006]
+  Always export MMX asm functions, just stubs if not building pnggccrd.c
+
+version 1.2.15beta3 [December 4, 2006]
+  Add "png_bytep" typecast to profile while calculating length in pngwutil.c
+
+version 1.2.15beta4 [December 7, 2006]
+  Added scripts/CMakeLists.txt
+  Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta
+
+version 1.2.15beta5 [December 7, 2996]
+  Changed some instances of PNG_ASSEMBER_* to PNG_MMX_* in pnggccrd.c
+  Revised scripts/CMakeLists.txt
+
+version 1.2.15beta6 [December 13, 2006]
+  Revised scripts/CMakeLists.txt and configure.ac
+
+version 1.2.15rc1 [December 18, 2006]
+  Revised scripts/CMakeLists.txt

 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
--- a/89
+++ b/89
@@ -977,21 +977,15 @@ version 1.2.0beta1 [May 6, 2001]
  Bumped DLLNUM to 2.
  Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
    by default.
-  Added runtime selection of MMX features.
-  Added png_set_strip_error_numbers function and related macros.
 version 1.2.0beta2 [May 7, 2001]
  Finished merging 1.2.0beta1 with version 1.0.11
  Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
 version 1.2.0beta3 [May 17, 2001]
-  Enabled user memory function by default.
  Modified png_create_struct so it passes user mem_ptr to user memory allocator.
  Increased png_mng_features flag from png_byte to png_uint_32.
-  Bumped shared-library (so-number) and dll-number to 3.
 version 1.2.0beta4 [June 23, 2001]
  Check for missing profile length field in iCCP chunk and free chunk_data
     in case of truncated iCCP chunk.
-  Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
-  Bumped dll-number from 2 to 3 in makefile.cygwin
  Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
     if user attempts to run it on an 8-bit display.
  Updated contrib/gregbook
@@ -1070,7 +1064,6 @@ version 1.2.2beta3 [March 7, 2002]
  Modified shared-library makefiles to install pkgconfig/libpngNN.pc.
  Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown
  Removed unused png_write_destroy_info prototype from png.h
-  Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case
  Added install-shared target to all makefiles that make shared libraries.
  Stopped a double free of palette, hist, and trans when not using free_me.
  Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64.
@@ -1265,8 +1258,6 @@ version 1.2.6beta3 [July 18, 2004]
  Updated scripts/makefile.vc(a)win32 (Cosmin).
  Updated the MSVC project (Simon-Pierre, Cosmin).
  Updated the Borland C++ Builder project (Cosmin).
-  Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
-  Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
  Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
  Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
    (Cosmin).
@@ -1358,7 +1349,6 @@ version 1.2.7beta2 [August 28, 2004]
  Fixed bug with sCAL chunk and big-endian machines (David Munro).
  Undid new code added in 1.2.6rc2 to update the color_type in
    png_set_filler().
-  Added png_set_add_alpha() that updates color type.
 version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004]
  Revised png_set_strip_filler() to not remove alpha if color_type has alpha.

@@ -1369,7 +1359,6 @@ version 1.2.8beta1 [November 1, 2004]
  Fixed bug in png_text_compress() that would fail to complete a large block.
  Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during
    strip alpha operation in png_do_strip_filler().
-  Added PNG_1_2_X definition in pngconf.h
  #ifdef out png_info_init in png.c and png_read_init in pngread.c (as of 1.3.0)
 version 1.2.8beta2 [November 2, 2004]
  Reduce color_type to a nonalpha type after strip alpha operation in
@@ -1480,7 +1469,7 @@ version 1.2.9beta5 [March 4, 2006]
  Restored scripts/makefile.elf which was inadvertently deleted.

 version 1.2.9beta6 [March 6, 2006]
-  Fixed typo (19) in configuration files.
+  Fixed typo (23) in configuration files.

 version 1.2.9beta7 [March 7, 2006]
  Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am
@@ -1655,7 +1644,7 @@ version 1.2.15beta4 [December 7, 2006]
  Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta

 version 1.2.15beta5 [December 7, 2006]
-  Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c
+  Changed some instances of PNG_ASSEMBER_* to PNG_MMX_* in pnggccrd.c
  Revised scripts/CMakeLists.txt

 version 1.2.15beta6 [December 13, 2006]
@@ -1664,80 +1653,6 @@ version 1.2.15beta6 [December 13, 2006]
 version 1.2.15rc1 [December 18, 2006]
  Revised scripts/CMakeLists.txt

-version 1.2.15rc2 [December 21, 2006]
-  Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
-  Added scripts/makefile.nommx
-
-version 1.2.15rc3 [December 25, 2006]
-  Fixed shared library numbering error that was intruduced 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.
-
-version 1.2.15rc5 [December 31, 2006]
-  Revised handling of rgb_to_gray.
-
-version 1.2.15 [January 5, 2007]
-  Added some (unsigned long) typecasts in pngtest.c to avoid printing errors.
-
-version 1.2.16beta1 [January 6, 2007]
-  Fix bugs in makefile.nommx
-
-version 1.2.16beta2 [January 16, 2007]
-  Revised scripts/CMakeLists.txt
- 
-version 1.2.16 [January 31, 2007]
-  No changes.
- 
-version 1.2.17beta1 [March 6, 2007]
-  Revised scripts/CMakeLists.txt to install both shared and static libraries.
-  Deleted a redundant line from pngset.c.
- 
-version 1.2.17beta2 [April 26, 2007]
-  Relocated misplaced test for png_ptr == NULL in pngpread.c
-  Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN
-    flags.
-  Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_*
-  Added pngerror() when write_IHDR fails in deflateInit2().
-  Added "const" to some array declarations.
-  Mention examples of libpng usage in the libpng*.txt and libpng.3 documents.
-
-version 1.2.17rc1 [May 4, 2007]
-  No changes.
-
-version 1.2.17rc2 [May 8, 2007]
-  Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications
-    calling set_unknown_chunk_location() need them.
-  Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in
-    png_set_expand_gray_1_2_4_to_8().
-  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.
- 
-version 1.2.17rc3 [May 8, 2007]
-  Revised symbol-handling in configure script.
-
-version 1.2.17rc4 [May 10, 2007]
-  Revised unknown chunk handling to avoid storing unknown critical chunks.
-
-version 1.0.25 [May 15, 2007]
-version 1.2.17 [May 15, 2007]
-  Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
-    to eliminate a vulnerability (CVE-2007-2554, CERT VU#684664)
-
-version 1.0.26 [May 15, 2007]
-version 1.2.18 [May 15, 2007]
-  Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script
-
-version 1.2.19beta1 [May 18, 2007]
-  Changed "const static" to "static PNG_CONST" everywhere, mostly undoing
-    change of libpng-1.2.17beta2.  Changed other "const" to "PNG_CONST"
-  Changed some handling of unused parameters, to avoid compiler warnings.
-    "if (unused == NULL) return;" becomes "unused = unused".
-
-version 1.2.19beta2 [May 19, 2007]
-  Fixed png_do_expand() to only use the appropriate bits of tRNS value.
-
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
--- a/25
+++ b/25
@@ -1,5 +1,5 @@

-Installing libpng version 1.2.19beta2 - May 19, 2007
+Installing libpng version 1.0.23rc1 - December 18, 2006

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

@@ -30,7 +30,7 @@ Or you can use one of the "projects" in the "projects" directory.
 If you want to use "cmake" (see www.cmake.org), copy CMakeLists.txt
 from the "scripts" directory to this directory and type

-   cmake . [-DPNG_MMX=YES] -DCMAKE_INSTALL_PREFIX=/path
+   cmake . [-DPNG_MMX] -DCMAKE_INSTALL_PREFIX=/path
   make
   make install

@@ -44,7 +44,7 @@ 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-1.2.19beta2" or "lpng109" and "zlib-1.2.1"
+might be called "libpng-1.0.23rc1" or "lpng109" and "zlib-1.2.1"
 or "zlib121") so that you have directories called "zlib" and "libpng".

 Your directory structure should look like this:
@@ -101,15 +101,12 @@ include
 CMakeLists.txt    =>  "cmake" script
 makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
 makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng12.so.0.1.2.19beta2)
+                       gcc, creates libpng10.so.0.1.0.23rc1)
 makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng12.so.0.1.2.19beta2)
+                       (gcc, creates libpng10.so.0.1.0.23rc1)
 makefile.gcmmx    =>  Linux/ELF makefile
-                       (gcc, creates libpng12.so.0.1.2.19beta2,
+                       (gcc, creates libpng10.so.0.1.0.23rc1,
                       uses assembler code tuned for Intel MMX platform)
- makefile.nommx    =>  Linux/ELF makefile
-                       (gcc, creates libpng12.so.0.1.2.19beta2
-                       does not use Intel MMX assembler code)
 makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
 makefile.knr      =>  Archaic UNIX Makefile that converts files with
                       ansi2knr (Requires ansi2knr.c from
@@ -126,17 +123,17 @@ include
 makefile.intel    =>  Intel C/C++ version 4.0 and later
 libpng.icc        =>  Project file for IBM VisualAge/C++ version 4.0 or later
 makefile.netbsd   =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
- makefile.ne12bsd  =>  NetBSD/cc makefile, uses PNGGCCRD,
-                       makes libpng12.so
+ makefile.ne10bsd  =>  NetBSD/cc makefile, uses PNGGCCRD,
+                       makes libpng10.so
 makefile.openbsd  =>  OpenBSD makefile
 makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
 makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng12.so.0.1.2.19beta2)
+                       creates libpng10.so.0.1.0.23rc1)
 makefile.sunos    =>  Sun makefile
 makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng12.so.0.1.2.19beta2)
+                       creates libpng10.so.0.1.0.23rc1)
 makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng12.so.0.1.2.19beta2)
+                       creates libpng10.so.0.1.0.23rc1)
 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
@@ -1,5 +1,5 @@

-Known bugs in libpng version 1.2.19beta2
+Known bugs in libpng version 1.0.23rc1

 1. April 22, 2001: pnggccrd.c has been reported to crash on NetBSD when
   reading interlaced PNG files, when assembler code is enabled but running
--- a/6
+++ b/6
@@ -8,8 +8,8 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
 If you modify libpng you may insert additional notices immediately following
 this sentence.

-libpng versions 1.2.6, August 15, 2004, through 1.2.19beta2, May 19, 2007, are
-Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
+libpng versions 1.2.6, August 15, 2004, through 1.0.23rc1, December 18, 2006, are
+Copyright (c) 2004, 2006 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

@@ -106,4 +106,4 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-May 19, 2007
+December 18, 2006
--- a/Makefile.am
+++ b/Makefile.am
@@ -16,7 +16,7 @@ AUTOMAKE_OPTIONS = foreign
 # test programs - run on make check, make distcheck
 check_PROGRAMS= pngtest
 pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng12.la
+pngtest_LDADD = libpng10.la
 TESTS = test-pngtest.sh
 TESTS_ENVIRONMENT= srcdir=$(srcdir) 

@@ -24,39 +24,39 @@ TESTS_ENVIRONMENT= srcdir=$(srcdir)
 dist_man_MANS= libpng.3 libpngpf.3 png.5

 # generate the -config scripts if required
-binconfigs= libpng12-config 
-EXTRA_SCRIPTS= libpng-config libpng12-config
+binconfigs= libpng10-config 
+EXTRA_SCRIPTS= libpng-config libpng10-config
 bin_SCRIPTS= @binconfigs@

 # rules to build libpng, only build the old library on request
-lib_LTLIBRARIES=libpng12.la @compatlib@
+lib_LTLIBRARIES=libpng10.la @compatlib@
 EXTRA_LTLIBRARIES= libpng.la
-libpng12_la_SOURCES = png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
+libpng10_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 pnggccrd.c \
 	png.h pngconf.h
-libpng_la_SOURCES = $(libpng12_la_SOURCES)
+libpng_la_SOURCES = $(libpng10_la_SOURCES)

 libpng_la_CPPFLAGS = @LIBPNG_DEFINES@
-libpng12_la_CPPFLAGS = @LIBPNG_DEFINES@
+libpng10_la_CPPFLAGS = @LIBPNG_DEFINES@

 # MAJOR UPGRADE: the version-number settings below must be changed.
-libpng12_la_LDFLAGS = -no-undefined -export-dynamic \
-	-version-number 0:@PNGLIB_RELEASE@:0
+libpng10_la_LDFLAGS = -no-undefined -export-dynamic \
+	-version-number 0:@PNGLIB_MINOR@:0
 # -rpath is needed as automake doesn't know the directory
 libpng_la_LDFLAGS = -rpath '$(libdir)' -no-undefined -export-dynamic \
-	-version-number 3:@PNGLIB_RELEASE@:0
+	-version-number 2:@PNGLIB_MINOR@:0

 if HAVE_LD_VERSION_SCRIPT
  # Versioned symbols and restricted exports
-  libpng12_la_LDFLAGS += -Wl,--version-script=libpng.vers
-  libpng12_la_DEPENDENCIES = libpng.vers
+  libpng10_la_LDFLAGS += -Wl,--version-script=libpng.vers
+  libpng10_la_DEPENDENCIES = libpng.vers
 else
  # Only restricted exports when possible
-  libpng12_la_LDFLAGS += -export-symbols libpng.sym
-  libpng12_la_DEPENDENCIES = libpng.sym
+  libpng10_la_LDFLAGS += -export-symbols libpng.sym
+  libpng10_la_DEPENDENCIES = libpng.sym
 endif
-libpng_la_DEPENDENCIES = $(libpng12_la_DEPENDENCIES)
+libpng_la_DEPENDENCIES = $(libpng10_la_DEPENDENCIES)

 #distribute headers in /usr/include/libpng/*
 pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
@@ -65,7 +65,7 @@ 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 = libpng12.pc
+pkgconfig_DATA = libpng10.pc

 #extra source distribution files.
 EXTRA_DIST= \
@@ -85,7 +85,7 @@ EXTRA_DIST= \
 	$(TESTS) \
 	example.c libpng.txt pngvcrd.c 

-CLEANFILES= pngout.png libpng12.pc libpng12-config libpng.vers \
+CLEANFILES= pngout.png libpng10.pc libpng10-config libpng.vers \
 libpng.sym

 $(PNGLIB_BASENAME).pc: libpng.pc
@@ -117,7 +117,7 @@ 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 libpng12 to be used
+# do evil things to libpng to cause libpng10 to be used
 install-exec-hook:
 	cd $(DESTDIR)$(bindir); rm -f libpng-config
 	cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
--- a/Makefile.in
+++ b/Makefile.in
@@ -27,7 +27,7 @@



-SOURCES = $(libpng_la_SOURCES) $(libpng12_la_SOURCES) $(pngtest_SOURCES)
+SOURCES = $(libpng_la_SOURCES) $(libpng10_la_SOURCES) $(pngtest_SOURCES)

 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
@@ -91,19 +91,19 @@ am__objects_1 = libpng_la-png.lo libpng_la-pngset.lo \
 	libpng_la-pnggccrd.lo
 am_libpng_la_OBJECTS = $(am__objects_1)
 libpng_la_OBJECTS = $(am_libpng_la_OBJECTS)
-libpng12_la_LIBADD =
-am_libpng12_la_OBJECTS = libpng12_la-png.lo libpng12_la-pngset.lo \
-	libpng12_la-pngget.lo libpng12_la-pngrutil.lo \
-	libpng12_la-pngtrans.lo libpng12_la-pngwutil.lo \
-	libpng12_la-pngread.lo libpng12_la-pngrio.lo \
-	libpng12_la-pngwio.lo libpng12_la-pngwrite.lo \
-	libpng12_la-pngrtran.lo libpng12_la-pngwtran.lo \
-	libpng12_la-pngmem.lo libpng12_la-pngerror.lo \
-	libpng12_la-pngpread.lo libpng12_la-pnggccrd.lo
-libpng12_la_OBJECTS = $(am_libpng12_la_OBJECTS)
+libpng10_la_LIBADD =
+am_libpng10_la_OBJECTS = libpng10_la-png.lo libpng10_la-pngset.lo \
+	libpng10_la-pngget.lo libpng10_la-pngrutil.lo \
+	libpng10_la-pngtrans.lo libpng10_la-pngwutil.lo \
+	libpng10_la-pngread.lo libpng10_la-pngrio.lo \
+	libpng10_la-pngwio.lo libpng10_la-pngwrite.lo \
+	libpng10_la-pngrtran.lo libpng10_la-pngwtran.lo \
+	libpng10_la-pngmem.lo libpng10_la-pngerror.lo \
+	libpng10_la-pngpread.lo libpng10_la-pnggccrd.lo
+libpng10_la_OBJECTS = $(am_libpng10_la_OBJECTS)
 am_pngtest_OBJECTS = pngtest.$(OBJEXT)
 pngtest_OBJECTS = $(am_pngtest_OBJECTS)
-pngtest_DEPENDENCIES = libpng12.la
+pngtest_DEPENDENCIES = libpng10.la
 binSCRIPT_INSTALL = $(INSTALL_SCRIPT)
 SCRIPTS = $(bin_SCRIPTS)
 DEFAULT_INCLUDES = -I. -I$(srcdir) -I.
@@ -117,9 +117,9 @@ LTCOMPILE = $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) \
 CCLD = $(CC)
 LINK = $(LIBTOOL) --mode=link --tag=CC $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
-SOURCES = $(libpng_la_SOURCES) $(libpng12_la_SOURCES) \
+SOURCES = $(libpng_la_SOURCES) $(libpng10_la_SOURCES) \
 	$(pngtest_SOURCES)
-DIST_SOURCES = $(libpng_la_SOURCES) $(libpng12_la_SOURCES) \
+DIST_SOURCES = $(libpng_la_SOURCES) $(libpng10_la_SOURCES) \
 	$(pngtest_SOURCES)
 man3dir = $(mandir)/man3
 man5dir = $(mandir)/man5
@@ -203,7 +203,6 @@ PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PNGLIB_MAJOR = @PNGLIB_MAJOR@
 PNGLIB_MINOR = @PNGLIB_MINOR@
-PNGLIB_RELEASE = @PNGLIB_RELEASE@
 PNGLIB_VERSION = @PNGLIB_VERSION@
 POW_LIB = @POW_LIB@
 RANLIB = @RANLIB@
@@ -226,7 +225,7 @@ am__tar = @am__tar@
 am__untar = @am__untar@

 # generate the -config scripts if required
-binconfigs = libpng12-config 
+binconfigs = libpng10-config 
 bindir = @bindir@
 build = @build@
 build_alias = @build_alias@
@@ -272,39 +271,39 @@ PNGLIB_BASENAME = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
 # libpng does not follow GNU file name conventions
 AUTOMAKE_OPTIONS = foreign
 pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng12.la
+pngtest_LDADD = libpng10.la
 TESTS = test-pngtest.sh
 TESTS_ENVIRONMENT = srcdir=$(srcdir) 

 # man pages
 dist_man_MANS = libpng.3 libpngpf.3 png.5
-EXTRA_SCRIPTS = libpng-config libpng12-config
+EXTRA_SCRIPTS = libpng-config libpng10-config
 bin_SCRIPTS = @binconfigs@

 # rules to build libpng, only build the old library on request
-lib_LTLIBRARIES = libpng12.la @compatlib@
+lib_LTLIBRARIES = libpng10.la @compatlib@
 EXTRA_LTLIBRARIES = libpng.la
-libpng12_la_SOURCES = png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
+libpng10_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 pnggccrd.c \
 	png.h pngconf.h

-libpng_la_SOURCES = $(libpng12_la_SOURCES)
+libpng_la_SOURCES = $(libpng10_la_SOURCES)
 libpng_la_CPPFLAGS = @LIBPNG_DEFINES@
-libpng12_la_CPPFLAGS = @LIBPNG_DEFINES@
+libpng10_la_CPPFLAGS = @LIBPNG_DEFINES@

 # MAJOR UPGRADE: the version-number settings below must be changed.
-libpng12_la_LDFLAGS = -no-undefined -export-dynamic -version-number \
-	0:@PNGLIB_RELEASE@:0 $(am__append_1) $(am__append_2)
+libpng10_la_LDFLAGS = -no-undefined -export-dynamic -version-number \
+	0:@PNGLIB_MINOR@:0 $(am__append_1) $(am__append_2)
 # -rpath is needed as automake doesn't know the directory
 libpng_la_LDFLAGS = -rpath '$(libdir)' -no-undefined -export-dynamic \
-	-version-number 3:@PNGLIB_RELEASE@:0
+	-version-number 2:@PNGLIB_MINOR@:0

-@HAVE_LD_VERSION_SCRIPT_FALSE@libpng12_la_DEPENDENCIES = libpng.sym
-@HAVE_LD_VERSION_SCRIPT_TRUE@libpng12_la_DEPENDENCIES = libpng.vers
-libpng_la_DEPENDENCIES = $(libpng12_la_DEPENDENCIES)
+@HAVE_LD_VERSION_SCRIPT_FALSE@libpng10_la_DEPENDENCIES = libpng.sym
+@HAVE_LD_VERSION_SCRIPT_TRUE@libpng10_la_DEPENDENCIES = libpng.vers
+libpng_la_DEPENDENCIES = $(libpng10_la_DEPENDENCIES)
 pkginclude_HEADERS = png.h pngconf.h
-pkgconfig_DATA = libpng12.pc
+pkgconfig_DATA = libpng10.pc

 #extra source distribution files.
 EXTRA_DIST = \
@@ -324,7 +323,7 @@ EXTRA_DIST = \
 	$(TESTS) \
 	example.c libpng.txt pngvcrd.c 

-CLEANFILES = pngout.png libpng12.pc libpng12-config libpng.vers \
+CLEANFILES = pngout.png libpng10.pc libpng10-config libpng.vers \
 libpng.sym

 all: config.h
@@ -415,8 +414,8 @@ clean-libLTLIBRARIES:
 	done
 libpng.la: $(libpng_la_OBJECTS) $(libpng_la_DEPENDENCIES) 
 	$(LINK)  $(libpng_la_LDFLAGS) $(libpng_la_OBJECTS) $(libpng_la_LIBADD) $(LIBS)
-libpng12.la: $(libpng12_la_OBJECTS) $(libpng12_la_DEPENDENCIES) 
-	$(LINK) -rpath $(libdir) $(libpng12_la_LDFLAGS) $(libpng12_la_OBJECTS) $(libpng12_la_LIBADD) $(LIBS)
+libpng10.la: $(libpng10_la_OBJECTS) $(libpng10_la_DEPENDENCIES) 
+	$(LINK) -rpath $(libdir) $(libpng10_la_LDFLAGS) $(libpng10_la_OBJECTS) $(libpng10_la_LIBADD) $(LIBS)

 clean-checkPROGRAMS:
 	@list='$(check_PROGRAMS)'; for p in $$list; do \
@@ -453,22 +452,22 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c

-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-png.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngerror.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pnggccrd.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngget.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngmem.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngpread.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngread.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngrio.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngrtran.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngrutil.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngset.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngtrans.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngwio.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngwrite.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngwtran.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng12_la-pngwutil.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-png.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngerror.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pnggccrd.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngget.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngmem.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngpread.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngread.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngrio.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngrtran.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngrutil.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngset.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngtrans.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngwio.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngwrite.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngwtran.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng10_la-pngwutil.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng_la-png.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng_la-pngerror.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libpng_la-pnggccrd.Plo@am__quote@
@@ -620,117 +619,117 @@ libpng_la-pnggccrd.lo: pnggccrd.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng_la-pnggccrd.lo `test -f 'pnggccrd.c' || echo '$(srcdir)/'`pnggccrd.c

-libpng12_la-png.lo: png.c
-@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng12_la-png.lo -MD -MP -MF "$(DEPDIR)/libpng12_la-png.Tpo" -c -o libpng12_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c; \
-@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng12_la-png.Tpo" "$(DEPDIR)/libpng12_la-png.Plo"; else rm -f "$(DEPDIR)/libpng12_la-png.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='png.c' object='libpng12_la-png.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-png.lo: png.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-png.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-png.Tpo" -c -o libpng10_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-png.Tpo" "$(DEPDIR)/libpng10_la-png.Plo"; else rm -f "$(DEPDIR)/libpng10_la-png.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='png.c' object='libpng10_la-png.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c
+@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng10_la-png.lo `test -f 'png.c' || echo '$(srcdir)/'`png.c

-libpng12_la-pngset.lo: pngset.c
-@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng12_la-pngset.lo -MD -MP -MF "$(DEPDIR)/libpng12_la-pngset.Tpo" -c -o libpng12_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c; \
-@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng12_la-pngset.Tpo" "$(DEPDIR)/libpng12_la-pngset.Plo"; else rm -f "$(DEPDIR)/libpng12_la-pngset.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngset.c' object='libpng12_la-pngset.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-pngset.lo: pngset.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-pngset.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-pngset.Tpo" -c -o libpng10_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-pngset.Tpo" "$(DEPDIR)/libpng10_la-pngset.Plo"; else rm -f "$(DEPDIR)/libpng10_la-pngset.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngset.c' object='libpng10_la-pngset.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c
+@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng10_la-pngset.lo `test -f 'pngset.c' || echo '$(srcdir)/'`pngset.c

-libpng12_la-pngget.lo: pngget.c
-@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng12_la-pngget.lo -MD -MP -MF "$(DEPDIR)/libpng12_la-pngget.Tpo" -c -o libpng12_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c; \
-@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng12_la-pngget.Tpo" "$(DEPDIR)/libpng12_la-pngget.Plo"; else rm -f "$(DEPDIR)/libpng12_la-pngget.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngget.c' object='libpng12_la-pngget.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-pngget.lo: pngget.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-pngget.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-pngget.Tpo" -c -o libpng10_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-pngget.Tpo" "$(DEPDIR)/libpng10_la-pngget.Plo"; else rm -f "$(DEPDIR)/libpng10_la-pngget.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngget.c' object='libpng10_la-pngget.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c
+@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng10_la-pngget.lo `test -f 'pngget.c' || echo '$(srcdir)/'`pngget.c

-libpng12_la-pngrutil.lo: pngrutil.c
-@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng12_la-pngrutil.lo -MD -MP -MF "$(DEPDIR)/libpng12_la-pngrutil.Tpo" -c -o libpng12_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c; \
-@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng12_la-pngrutil.Tpo" "$(DEPDIR)/libpng12_la-pngrutil.Plo"; else rm -f "$(DEPDIR)/libpng12_la-pngrutil.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrutil.c' object='libpng12_la-pngrutil.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-pngrutil.lo: pngrutil.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-pngrutil.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-pngrutil.Tpo" -c -o libpng10_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-pngrutil.Tpo" "$(DEPDIR)/libpng10_la-pngrutil.Plo"; else rm -f "$(DEPDIR)/libpng10_la-pngrutil.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngrutil.c' object='libpng10_la-pngrutil.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c
+@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng10_la-pngrutil.lo `test -f 'pngrutil.c' || echo '$(srcdir)/'`pngrutil.c

-libpng12_la-pngtrans.lo: pngtrans.c
-@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng12_la-pngtrans.lo -MD -MP -MF "$(DEPDIR)/libpng12_la-pngtrans.Tpo" -c -o libpng12_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c; \
-@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng12_la-pngtrans.Tpo" "$(DEPDIR)/libpng12_la-pngtrans.Plo"; else rm -f "$(DEPDIR)/libpng12_la-pngtrans.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngtrans.c' object='libpng12_la-pngtrans.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-pngtrans.lo: pngtrans.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-pngtrans.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-pngtrans.Tpo" -c -o libpng10_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-pngtrans.Tpo" "$(DEPDIR)/libpng10_la-pngtrans.Plo"; else rm -f "$(DEPDIR)/libpng10_la-pngtrans.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngtrans.c' object='libpng10_la-pngtrans.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c
+@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng10_la-pngtrans.lo `test -f 'pngtrans.c' || echo '$(srcdir)/'`pngtrans.c

-libpng12_la-pngwutil.lo: pngwutil.c
-@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng12_la-pngwutil.lo -MD -MP -MF "$(DEPDIR)/libpng12_la-pngwutil.Tpo" -c -o libpng12_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c; \
-@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng12_la-pngwutil.Tpo" "$(DEPDIR)/libpng12_la-pngwutil.Plo"; else rm -f "$(DEPDIR)/libpng12_la-pngwutil.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwutil.c' object='libpng12_la-pngwutil.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-pngwutil.lo: pngwutil.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-pngwutil.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-pngwutil.Tpo" -c -o libpng10_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-pngwutil.Tpo" "$(DEPDIR)/libpng10_la-pngwutil.Plo"; else rm -f "$(DEPDIR)/libpng10_la-pngwutil.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pngwutil.c' object='libpng10_la-pngwutil.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-pngwutil.lo `test -f 'pngwutil.c' || echo '$(srcdir)/'`pngwutil.c
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-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pnggccrd.c' object='libpng12_la-pnggccrd.lo' libtool=yes @AMDEPBACKSLASH@
+libpng10_la-pnggccrd.lo: pnggccrd.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libpng10_la-pnggccrd.lo -MD -MP -MF "$(DEPDIR)/libpng10_la-pnggccrd.Tpo" -c -o libpng10_la-pnggccrd.lo `test -f 'pnggccrd.c' || echo '$(srcdir)/'`pnggccrd.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/libpng10_la-pnggccrd.Tpo" "$(DEPDIR)/libpng10_la-pnggccrd.Plo"; else rm -f "$(DEPDIR)/libpng10_la-pnggccrd.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='pnggccrd.c' object='libpng10_la-pnggccrd.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng12_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng12_la-pnggccrd.lo `test -f 'pnggccrd.c' || echo '$(srcdir)/'`pnggccrd.c
+@am__fastdepCC_FALSE@	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libpng10_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libpng10_la-pnggccrd.lo `test -f 'pnggccrd.c' || echo '$(srcdir)/'`pnggccrd.c

 mostlyclean-libtool:
 	-rm -f *.lo
@@ -1267,7 +1266,7 @@ 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 libpng12 to be used
+# do evil things to libpng to cause libpng10 to be used
 install-exec-hook:
 	cd $(DESTDIR)$(bindir); rm -f libpng-config
 	cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
--- a/16
+++ b/16
@@ -1,4 +1,4 @@
-README for libpng version 1.2.19beta2 - May 19, 2007 (shared library 12.0)
+README for libpng version 1.0.23rc1 - December 18, 2006 (shared library 10.0)
 See the note about version numbers near the top of png.h

 See INSTALL for instructions on how to install libpng.
@@ -190,11 +190,11 @@ Files in this distribution:
       descrip.mms      =>  VMS makefile for MMS or MMK
       makefile.std     =>  Generic UNIX makefile (cc, creates static libpng.a)
       makefile.elf     =>  Linux/ELF makefile symbol versioning,
-                            gcc, creates libpng12.so.0.1.2.19beta2)
+                            gcc, creates libpng10.so.0.1.0.23rc1)
       makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng12.so.0.1.2.19beta2)
+                            (gcc, creates libpng10.so.0.1.0.23rc1)
       makefile.gcmmx   =>  Linux/ELF makefile
-                            (gcc, creates libpng12.so.0.1.2.19beta2,
+                            (gcc, creates libpng10.so.0.1.0.23rc1,
                            uses assembler code tuned for Intel MMX platform)
       makefile.gcc     =>  Generic makefile (gcc, creates static libpng.a)
       makefile.knr     =>  Archaic UNIX Makefile that converts files with
@@ -212,16 +212,16 @@ Files in this distribution:
       makefile.intel   =>  Intel C/C++ version 4.0 and later
       libpng.icc       =>  Project file, IBM VisualAge/C++ 4.0 or later
       makefile.netbsd  =>  NetBSD/cc makefile, PNGGCCRD, makes libpng.so.
-       makefile.ne12bsd  =>  NetBSD/cc makefile, PNGGCCRD, makes libpng12.so
+       makefile.ne10bsd  =>  NetBSD/cc makefile, PNGGCCRD, makes libpng10.so
       makefile.openbsd =>  OpenBSD makefile
       makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
       makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng12.so.0.1.2.19beta2)
+                            (gcc, creates libpng10.so.0.1.0.23rc1)
       makefile.sunos   =>  Sun makefile
       makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng12.so.0.1.2.19beta2)
+                            (gcc, creates libpng10.so.0.1.0.23rc1)
       makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng12.so.0.1.2.19beta2)
+                            (gcc, creates libpng10.so.0.1.0.23rc1)
       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/4
+++ b/4
@@ -1,13 +1,13 @@
   Y2K compliance in libpng:
   =========================

-      May 19, 2007
+      December 18, 2006

      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 1.2.19beta2 are Y2K compliant.  It is my belief that earlier
+      upward through 1.0.23rc1 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
--- a/80
+++ b/80
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.61 for libpng 1.2.19beta2.
+# Generated by GNU Autoconf 2.61 for libpng 1.0.23rc1.
 #
 # Report bugs to <png-mng-implement@lists.sourceforge.net>.
 #
@@ -728,8 +728,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='libpng'
 PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.2.19beta2'
-PACKAGE_STRING='libpng 1.2.19beta2'
+PACKAGE_VERSION='1.0.23rc1'
+PACKAGE_STRING='libpng 1.0.23rc1'
 PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'

 ac_unique_file="pngget.c"
@@ -882,7 +882,6 @@ HAVE_LD_VERSION_SCRIPT_FALSE
 PNGLIB_VERSION
 PNGLIB_MAJOR
 PNGLIB_MINOR
-PNGLIB_RELEASE
 pkgconfigdir
 binconfigs
 compatlib
@@ -1405,7 +1404,7 @@ 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 1.2.19beta2 to adapt to many kinds of systems.
+\`configure' configures libpng 1.0.23rc1 to adapt to many kinds of systems.

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

@@ -1475,7 +1474,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of libpng 1.2.19beta2:";;
+     short | recursive ) echo "Configuration of libpng 1.0.23rc1:";;
   esac
  cat <<\_ACEOF

@@ -1585,7 +1584,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-libpng configure 1.2.19beta2
+libpng configure 1.0.23rc1
 generated by GNU Autoconf 2.61

 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1599,7 +1598,7 @@ 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 1.2.19beta2, which was
+It was created by libpng $as_me 1.0.23rc1, which was
 generated by GNU Autoconf 2.61.  Invocation command line was

  $ $0 $@
@@ -2269,7 +2268,7 @@ fi

 # Define the identity of the package.
 PACKAGE='libpng'
- VERSION='1.2.19beta2'
+ VERSION='1.0.23rc1'


 cat >>confdefs.h <<_ACEOF
@@ -2440,10 +2439,9 @@ fi



-PNGLIB_VERSION=1.2.19beta2
+PNGLIB_VERSION=1.0.23rc1
 PNGLIB_MAJOR=1
-PNGLIB_MINOR=2
-PNGLIB_RELEASE=19
+PNGLIB_MINOR=0



@@ -4776,7 +4774,7 @@ ia64-*-hpux*)
  ;;
 *-*-irix6*)
  # Find out which ABI we are using.
-  echo '#line 4779 "configure"' > conftest.$ac_ext
+  echo '#line 4777 "configure"' > conftest.$ac_ext
  if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
@@ -7278,11 +7276,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7281: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7279: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:7285: \$? = $ac_status" >&5
+   echo "$as_me:7283: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -7546,11 +7544,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7549: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7547: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:7553: \$? = $ac_status" >&5
+   echo "$as_me:7551: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -7650,11 +7648,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7653: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7651: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:7657: \$? = $ac_status" >&5
+   echo "$as_me:7655: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -9958,7 +9956,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 9961 "configure"
+#line 9959 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -10058,7 +10056,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 10061 "configure"
+#line 10059 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -12394,11 +12392,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:12397: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:12395: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:12401: \$? = $ac_status" >&5
+   echo "$as_me:12399: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -12498,11 +12496,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:12501: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:12499: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:12505: \$? = $ac_status" >&5
+   echo "$as_me:12503: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -14068,11 +14066,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14071: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14069: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:14075: \$? = $ac_status" >&5
+   echo "$as_me:14073: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -14172,11 +14170,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14175: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14173: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:14179: \$? = $ac_status" >&5
+   echo "$as_me:14177: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -16370,11 +16368,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16373: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16371: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:16377: \$? = $ac_status" >&5
+   echo "$as_me:16375: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -16638,11 +16636,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16641: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16639: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:16645: \$? = $ac_status" >&5
+   echo "$as_me:16643: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -16742,11 +16740,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16745: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16743: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:16749: \$? = $ac_status" >&5
+   echo "$as_me:16747: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -20550,8 +20548,8 @@ fi


 LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG
-{ echo "$as_me:$LINENO: checking if assembler code in pnggccrd.c can be compiled without PNG_NO_MMX_CODE" >&5
-echo $ECHO_N "checking if assembler code in pnggccrd.c can be compiled without PNG_NO_MMX_CODE... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: checking if assembler code in pnggccrd.c can be compiled" >&5
+echo $ECHO_N "checking if assembler code in pnggccrd.c can be compiled... $ECHO_C" >&6; }
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -20631,7 +20629,6 @@ fi



-
 # Additional arguments (and substitutions)
 # Allow the pkg-config directory to be set

@@ -21119,7 +21116,7 @@ exec 6>&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 1.2.19beta2, which was
+This file was extended by libpng $as_me 1.0.23rc1, which was
 generated by GNU Autoconf 2.61.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -21172,7 +21169,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-libpng config.status 1.2.19beta2
+libpng config.status 1.0.23rc1
 configured by $0, generated by GNU Autoconf 2.61,
  with options \\"`echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

@@ -21506,14 +21503,13 @@ HAVE_LD_VERSION_SCRIPT_FALSE!$HAVE_LD_VERSION_SCRIPT_FALSE$ac_delim
 PNGLIB_VERSION!$PNGLIB_VERSION$ac_delim
 PNGLIB_MAJOR!$PNGLIB_MAJOR$ac_delim
 PNGLIB_MINOR!$PNGLIB_MINOR$ac_delim
-PNGLIB_RELEASE!$PNGLIB_RELEASE$ac_delim
 pkgconfigdir!$pkgconfigdir$ac_delim
 binconfigs!$binconfigs$ac_delim
 compatlib!$compatlib$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF

-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 21; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 20; then
    break
  elif $ac_last_try; then
    { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@
 dnl Process this file with autoconf to produce a configure script.
 dnl
 dnl Minor upgrades (compatible ABI): increment the package version
-dnl (third field in two places below) and set the PNGLIB_RELEASE
+dnl (third field in two places below) and set the PNGLIB_MINOR
 dnl variable.
 dnl
 dnl Major upgrades (incompatible ABI): increment the package major
@@ -18,15 +18,14 @@ AC_PREREQ(2.59)

 dnl Version number stuff here:

-AC_INIT([libpng], [1.2.19beta2], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.0.23rc1], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE

-PNGLIB_VERSION=1.2.19beta2
+PNGLIB_VERSION=1.0.23rc1
 PNGLIB_MAJOR=1
-PNGLIB_MINOR=2
-PNGLIB_RELEASE=19
+PNGLIB_MINOR=0

 dnl End of version number stuff

@@ -88,7 +87,6 @@ AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
 AC_SUBST(PNGLIB_VERSION)
 AC_SUBST(PNGLIB_MAJOR)
 AC_SUBST(PNGLIB_MINOR)
-AC_SUBST(PNGLIB_RELEASE)

 # Additional arguments (and substitutions)
 # Allow the pkg-config directory to be set
--- a/example.c
+++ b/example.c
@@ -4,7 +4,7 @@
 /* example.c - an example of using libpng
 * Last changed in libpng 1.2.1 December 7, 2001.
 * This file has been placed in the public domain by the authors.
- * Maintained 1998-2007 Glenn Randers-Pehrson
+ * Maintained 1998-2001 Glenn Randers-Pehrson
 * Maintained 1996, 1997 Andreas Dilger)
 * Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
--- a/libpng.3
+++ b/libpng.3
--- a/libpng-1.2.19beta2.txt
+++ b/libpng-1.2.19beta2.txt
@@ -1,9 +1,9 @@
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.2.19beta2 - May 19, 2007
+ libpng version 1.0.23rc1 - December 18, 2006
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
- Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ Copyright (c) 1998-2005 Glenn Randers-Pehrson
 For conditions of distribution and use, see copyright
 notice in png.h.

@@ -33,10 +33,6 @@ it is heavily commented and should include everything most people
 will need.  We assume that libpng is already installed; see the
 INSTALL file for instructions on how to install libpng.

-For examples of libpng usage, see the files "example.c", "pngtest.c",
-and the files in the "contrib" directory, all of which are included in the
-libpng distribution.
-
 Libpng was written as a companion to the PNG specification, as a way
 of reducing the amount of time and effort it takes to support the PNG
 file format in application programs.
@@ -307,28 +303,6 @@ To inform libpng about your function, use

    png_set_read_status_fn(png_ptr, read_row_callback);

-Width and height limits
-
-The PNG specification allows the width and height of an image to be as
-large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
-Since very few applications really need to process such large images,
-we have imposed an arbitrary 1-million limit on rows and columns.
-Larger images will be rejected immediately with a png_error() call. If
-you wish to override this limit, you can use
-
-   png_set_user_limits(png_ptr, width_max, height_max);
-
-to set your own limits, or use width_max = height_max = 0x7fffffffL
-to allow all valid dimensions (libpng may reject some very large images
-anyway because of potential buffer overflow conditions).
-
-You should put this statement after you create the PNG structure and
-before calling png_read_info(), png_read_png(), or png_process_data().
-If you need to retrieve the limits that are being applied, use
-
-   width_max = png_get_user_width_max(png_ptr);
-   height_max = png_get_user_height_max(png_ptr);
-
 Unknown-chunk handling

 Now you get to set the way the library processes unknown chunks in the
@@ -771,7 +745,7 @@ unless the library has been told to transform it into another format.
 For example, 4 bit/pixel paletted or grayscale data will be returned
 2 pixels/byte with the leftmost pixel in the high-order bits of the
 byte, unless png_set_packing() is called.  8-bit RGB data will be stored
-in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
+in RGB RGB RGB format unless png_set_filler()
 is called to insert filler bytes, either before or after each RGB triplet.
 16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
 byte of the color value first, unless png_set_strip_16() is called to
@@ -779,7 +753,7 @@ transform it to regular RGB RGB triplets, or png_set_filler() or
 png_set_add alpha() is called to insert filler bytes, either before or
 after each RRGGBB triplet.  Similarly, 8-bit or 16-bit grayscale data can
 be modified with
-png_set_filler(), png_set_add_alpha(), or png_set_strip_16().
+png_set_filler() or png_set_strip_16().

 The following code transforms grayscale images of less than 8 to 8 bits,
 changes paletted images to RGB, and adds a full alpha channel if there is
@@ -791,7 +765,7 @@ viewing application that wishes to treat all images in the same way.
        png_set_palette_to_rgb(png_ptr);

    if (color_type == PNG_COLOR_TYPE_GRAY &&
-        bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr);
+        bit_depth < 8) png_set_gray_1_2_4_to_8(png_ptr);

    if (png_get_valid(png_ptr, info_ptr,
        PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr);
@@ -801,11 +775,6 @@ in libpng version 1.0.4, with the function names expanded to improve code
 readability.  In some future version they may actually do different
 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.
-At the same time, png_set_gray_1_2_4_to_8() was deprecated, and it
-will be removed from a future version.
-
 PNG can have files with 16 bits per channel.  If you only can handle
 8 bits per channel, this will strip the pixels down to 8 bit.

@@ -869,16 +838,7 @@ does not affect images that already have full alpha channels.  To add an
 opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which
 will generate RGBA pixels.

-Note that png_set_filler() does not change the color type.  If you want
-to do that, you can add a true alpha channel with
-
-    if (color_type == PNG_COLOR_TYPE_RGB ||
           color_type == PNG_COLOR_TYPE_GRAY)
-    png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
-
-where "filler" contains the alpha value to assign to each pixel.
-This function was added in libpng-1.2.7.
-
 If you are reading an image with an alpha channel, and you need the
 data as ARGB instead of the normal PNG format RGBA:

@@ -2726,126 +2686,7 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
 having level = 0 will be printed.  There aren't any such statements in
 this version of libpng, but if you insert some they will be printed.

-VI.  Runtime optimization
-
-A new feature in libpng 1.2.0 is the ability to dynamically switch between
-standard and optimized versions of some routines.  Currently these are
-limited to three computationally intensive tasks when reading PNG files:
-decoding row filters, expanding interlacing, and combining interlaced or
-transparent row data with previous row data.  Currently the optimized
-versions are available only for x86 (Intel, AMD, etc.) platforms with
-MMX support, though this may change in future versions.  (For example,
-the non-MMX assembler optimizations for zlib might become similarly
-runtime-selectable in future releases, in which case libpng could be
-extended to support them.  Alternatively, the compile-time choice of
-floating-point versus integer routines for gamma correction might become
-runtime-selectable.)
-
-Because such optimizations tend to be very platform- and compiler-dependent,
-both in how they are written and in how they perform, the new runtime code
-in libpng has been written to allow programs to query, enable, and disable
-either specific optimizations or all such optimizations.  For example, to
-enable all possible optimizations (bearing in mind that some "optimizations"
-may actually run more slowly in rare cases):
-
-    #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-       png_uint_32 mask, flags;
-
-       flags = png_get_asm_flags(png_ptr);
-       mask = png_get_asm_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE);
-       png_set_asm_flags(png_ptr, flags | mask);
-    #endif
-
-To enable only optimizations relevant to reading PNGs, use PNG_SELECT_READ
-by itself when calling png_get_asm_flagmask(); similarly for optimizing
-only writing.  To disable all optimizations:
-
-    #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-       flags = png_get_asm_flags(png_ptr);
-       mask = png_get_asm_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE);
-       png_set_asm_flags(png_ptr, flags & ~mask);
-    #endif
-
-To enable or disable only MMX-related features, use png_get_mmx_flagmask()
-in place of png_get_asm_flagmask().  The mmx version takes one additional
-parameter:
-
-    #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-       int selection = PNG_SELECT_READ | PNG_SELECT_WRITE;
-       int compilerID;
-
-       mask = png_get_mmx_flagmask(selection, &compilerID);
-    #endif
-
-On return, compilerID will indicate which version of the MMX assembler
-optimizations was compiled.  Currently two flavors exist:  Microsoft
-Visual C++ (compilerID == 1) and GNU C (a.k.a. gcc/gas, compilerID == 2).
-On non-x86 platforms or on systems compiled without MMX optimizations, a
-value of -1 is used.
-
-Note that both png_get_asm_flagmask() and png_get_mmx_flagmask() return
-all valid, settable optimization bits for the version of the library that's
-currently in use.  In the case of shared (dynamically linked) libraries,
-this may include optimizations that did not exist at the time the code was
-written and compiled.  It is also possible, of course, to enable only known,
-specific optimizations; for example:
-
-    #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-       flags = 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 ;
-       png_set_asm_flags(png_ptr, flags);
-    #endif
-
-This method would enable only the MMX read-optimizations available at the
-time of libpng 1.2.0's release, regardless of whether a later version of
-the DLL were actually being used.  (Also note that these functions did not
-exist in versions older than 1.2.0, so any attempt to run a dynamically
-linked app on such an older version would fail.)
-
-To determine whether the processor supports MMX instructions at all, use
-the png_mmx_support() function:
-
-    #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
-       mmxsupport = png_mmx_support();
-    #endif
-
-It returns -1 if MMX support is not compiled into libpng, 0 if MMX code
-is compiled but MMX is not supported by the processor, or 1 if MMX support
-is fully available.  Note that png_mmx_support(), png_get_mmx_flagmask(),
-and png_get_asm_flagmask() all may be called without allocating and ini-
-tializing any PNG structures (for example, as part of a usage screen or
-"about" box).
-
-The following code can be used to prevent an application from using the
-thread_unsafe features, even if libpng was built with PNG_THREAD_UNSAFE_OK
-defined:
-
-#if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) \
-  && defined(PNG_THREAD_UNSAFE_OK)
-    /* Disable thread-unsafe features of pnggccrd */
-    if (png_access_version_number() >= 10200)
-    {
-      png_uint_32 mmx_disable_mask = 0;
-      png_uint_32 asm_flags;
-
-      mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW  \
-                          | PNG_ASM_FLAG_MMX_READ_FILTER_SUB   \
-                          | PNG_ASM_FLAG_MMX_READ_FILTER_AVG   \
-                          | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH );
-      asm_flags = png_get_asm_flags(png_ptr);
-      png_set_asm_flags(png_ptr, asm_flags & ~mmx_disable_mask);
-    }
-#endif
-
-For more extensive examples of runtime querying, enabling and disabling
-of optimized features, see contrib/gregbook/readpng2.c in the libpng
-source-code distribution.
-
-VII.  MNG support
+VI.  MNG support

 The MNG specification (available at http://www.libpng.org/pub/mng) allows
 certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@@ -2870,7 +2711,7 @@ or any other MNG chunks; your application must provide its own support for
 them.  You may wish to consider using libmng (available at
 http://www.libmng.com) instead.

-VIII.  Changes to Libpng from version 0.88
+VII.  Changes to Libpng from version 0.88

 It should be noted that versions of libpng later than 0.96 are not
 distributed by the original libpng author, Guy Schalnat, nor by
@@ -2919,15 +2760,15 @@ application:

   png_uint_32 application_vn = PNG_LIBPNG_VER;

-IX. Y2K Compliance in libpng
+VIII. Y2K Compliance in libpng

-May 19, 2007
+December 18, 2006

 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 1.2.19beta2 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.23rc1 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/libpngpf.3
+++ b/libpngpf.3
@@ -1,266 +1,776 @@
-.TH LIBPNGPF 3 "May 19, 2007"
+.TH LIBPNGPF 3 "December 18, 2006"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.19beta2
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.23rc1
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_build_gamma_table (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_build_grayscale_palette (int \fP\fIbit_depth\fP\fB, png_colorp \fIpalette\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_calculate_crc (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIptr\fP\fB, png_size_t \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_check_chunk_name (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBpng_size_t png_check_keyword (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charpp \fInew_key\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fImask\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_correct_palette (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBint png_crc_error (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBint png_crc_finish (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIskip\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_crc_read (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuf\fP\fB, png_size_t \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBpng_voidp png_create_struct (int \fItype\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBpng_voidp png_create_struct_2 (int \fP\fItype\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_voidp \fImem_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBpng_charp png_decompress_chunk (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcomp_type\fP\fB, png_charp \fP\fIchunkdata\fP\fB, png_size_t \fP\fIchunklength\fP\fB, png_size_t \fP\fIprefix_length\fP\fB, png_size_t \fI*data_length\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_destroy_struct (png_voidp \fIstruct_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_destroy_struct_2 (png_voidp \fP\fIstruct_ptr\fP\fB, png_free_ptr \fP\fIfree_fn\fP\fB, png_voidp \fImem_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_background (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_16p \fP\fItrans_values\fP\fB, png_color_16p \fP\fIbackground\fP\fB, png_color_16p \fP\fIbackground_1\fP\fB, png_bytep \fP\fIgamma_table\fP\fB, png_bytep \fP\fIgamma_from_1\fP\fB, png_bytep \fP\fIgamma_to_1\fP\fB, png_uint_16pp \fP\fIgamma_16\fP\fB, png_uint_16pp \fP\fIgamma_16_from_1\fP\fB, png_uint_16pp \fP\fIgamma_16_to_1\fP\fB, int \fIgamma_shift\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_bgr (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_chop (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\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
+
+\fI\fB
+
 \fBvoid png_do_expand_palette (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_colorp \fP\fIpalette\fP\fB, png_bytep \fP\fItrans\fP\fB, int \fInum_trans\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_gamma (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIgamma_table\fP\fB, png_uint_16pp \fP\fIgamma_16_table\fP\fB, int \fIgamma_shift\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_gray_to_rgb (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_invert (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_pack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fIbit_depth\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_packswap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\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
+
+\fI\fB
+
 \fBvoid png_do_read_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fP\fIpass\fP\fB, png_uint_32 \fItransformations\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_read_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_read_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBint png_do_rgb_to_gray (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_shift (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_8p \fIbit_depth\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_strip_filler (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fIflags\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_swap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_unpack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_unshift (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_8p \fIsig_bits\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_write_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fIpass\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_write_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_write_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_do_write_transformations (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid *png_far_to_near (png_structp png_ptr,png_voidp \fP\fIptr\fP\fB, int \fIcheck\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_flush (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_IEND (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_iTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_handle_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_info_destroy (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_init_mmx_flags (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_init_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_process_IDAT_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_length\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_process_some_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_check_crc (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_crc_finish (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_crc_skip (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_fill_buffer (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_handle_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_handle_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_handle_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_have_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_have_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_have_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_process_row (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_read_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_read_IDAT (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_read_sig (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_read_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_read_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_restore_buffer (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_length\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_push_save_buffer (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_read_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_read_filter_row (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIprev_row\fP\fB, int \fIfilter\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_read_finish_row (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_read_push_finish_row (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_read_start_row (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_read_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_reset_crc (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBint png_set_text_2 (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_cHRM (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_filtered_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIfiltered_row\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_find_filter (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fIrow_info\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_finish_row (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_gAMA (png_structp \fP\fIpng_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIint_file_gamma\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_uint_16p \fP\fIhist\fP\fB, int \fInum_hist\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_charp \fP\fIprofile\fP\fB, int \fIproflen\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_IDAT (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_IEND (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fP\fIfilter_type\fP\fB, int \fIinterlace_type\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_iTXt (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcompression\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fIlang\fP\fB, png_charp \fP\fItranslated_key\fP\fB, png_charp \fItext\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIx_offset\fP\fB, png_uint_32 \fP\fIy_offset\fP\fB, int \fIunit_type\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIx_pixels_per_unit\fP\fB, png_uint_32 \fP\fIy_pixels_per_unit\fP\fB, int \fIunit_type\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, png_uint_32 \fInum_pal\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fP\fIsbit\fP\fB, int \fIcolor_type\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_sCAL_s (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIunit\fP\fB, png_charp \fP\fIwidth\fP\fB, png_charp \fIheight\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_sig (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_sRGB (png_structp \fP\fIpng_ptr\fP\fB, int \fIintent\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_spalette_p \fIpalette\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_start_row (png_structp \fIpng_ptr\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fItext\fP\fB, png_size_t \fItext_len\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fItrans\fP\fB, png_color_16p \fP\fIvalues\fP\fB, int \fP\fInumber\fP\fB, int \fIcolor_type\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_write_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fItext\fP\fB, png_size_t \fP\fItext_len\fP\fB, int \fIcompression\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoidpf png_zalloc (voidpf \fP\fIpng_ptr\fP\fB, uInt \fP\fIitems\fP\fB, uInt \fIsize\fP\fB);\fP

+\fI\fB
+
+\fI\fB
+
 \fBvoid png_zfree (voidpf \fP\fIpng_ptr\fP\fB, voidpf \fIptr\fP\fB);\fP

 \fI\fB

+\fI\fB
+
 .SH DESCRIPTION
 The functions listed above are used privately by libpng
 and are not recommended for use by applications.  They are
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "May 19, 2007"
+.TH PNG 5 "December 18, 2006"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
--- a/png.c
+++ b/png.c
@@ -1,9 +1,9 @@

 /* png.c - location for general purpose libpng functions
 *
- * Last changed in libpng 1.2.19 May 19, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 */
@@ -13,20 +13,20 @@
 #include "png.h"

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_19beta2 Your_png_h_is_not_version_1_2_19beta2;
+typedef version_1_0_23rc1 Your_png_h_is_not_version_1_0_23rc1;

 /* Version information for C files.  This had better match the version
 * string defined in png.h.  */

 #ifdef PNG_USE_GLOBAL_ARRAYS
 /* png_libpng_ver was changed to a function in version 1.0.5c */
-PNG_CONST char png_libpng_ver[18] = PNG_LIBPNG_VER_STRING;
+const char png_libpng_ver[18] = PNG_LIBPNG_VER_STRING;

 #ifdef PNG_READ_SUPPORTED

 /* png_sig was changed to a function in version 1.0.5c */
 /* Place to hold the signature string for a PNG file. */
-PNG_CONST png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
+const png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
 #endif /* PNG_READ_SUPPORTED */

 /* Invoke global declarations for constant strings for known chunk types */
@@ -56,32 +56,32 @@ PNG_zTXt;
 /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */

 /* start of interlace block */
-PNG_CONST int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
+const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};

 /* offset to next interlace block */
-PNG_CONST int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};

 /* start of interlace block in the y direction */
-PNG_CONST int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
+const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};

 /* offset to next interlace block in the y direction */
-PNG_CONST int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
+const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};

 /* width of interlace block (used in assembler routines only) */
-#ifdef PNG_HAVE_MMX_COMBINE_ROW
-PNG_CONST int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
+#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
+const int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
 #endif

 /* Height of interlace block.  This is not currently used - if you need
 * it, uncomment it here and in png.h
-PNG_CONST int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
+const int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
 */

 /* Mask to determine which pixels are valid in a pass */
-PNG_CONST int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
+const int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};

 /* Mask to determine which pixels to overwrite while displaying */
-PNG_CONST int FARDATA png_pass_dsp_mask[]
+const int FARDATA png_pass_dsp_mask[]
   = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};

 #endif /* PNG_READ_SUPPORTED */
@@ -490,11 +490,6 @@ if (mask & PNG_FREE_SPLT)
 #endif

 #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
-  if(png_ptr->unknown_chunk.data)
-  {
-    png_free(png_ptr, png_ptr->unknown_chunk.data);
-    png_ptr->unknown_chunk.data = NULL;
-  }
 #ifdef PNG_FREE_ME_SUPPORTED
 if ((mask & PNG_FREE_UNKN) & info_ptr->free_me)
 #else
@@ -705,11 +700,12 @@ png_sig_bytes(void)
 png_charp PNGAPI
 png_get_copyright(png_structp png_ptr)
 {
-   png_ptr = png_ptr;  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) "\n libpng version 1.2.19beta2 - May 19, 2007\n\
-   Copyright (c) 1998-2007 Glenn Randers-Pehrson\n\
+   if (&png_ptr != NULL)  /* silence compiler warning about unused png_ptr */
+   return ((png_charp) "\n libpng version 1.0.23rc1 - December 18, 2006\n\
+   Copyright (c) 1998-2006 Glenn Randers-Pehrson\n\
   Copyright (c) 1996-1997 Andreas Dilger\n\
   Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
+   return ((png_charp) "");
 }

 /* The following return the library version as a short string in the
@@ -724,24 +720,27 @@ png_charp PNGAPI
 png_get_libpng_ver(png_structp png_ptr)
 {
   /* Version of *.c files used when building libpng */
-   png_ptr = png_ptr;  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) PNG_LIBPNG_VER_STRING);
+   if (&png_ptr != NULL)  /* silence compiler warning about unused png_ptr */
+      return ((png_charp) PNG_LIBPNG_VER_STRING);
+   return ((png_charp) "");
 }

 png_charp PNGAPI
 png_get_header_ver(png_structp png_ptr)
 {
   /* Version of *.h files used when building libpng */
-   png_ptr = png_ptr;  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) PNG_LIBPNG_VER_STRING);
+   if (&png_ptr != NULL)  /* silence compiler warning about unused png_ptr */
+      return ((png_charp) PNG_LIBPNG_VER_STRING);
+   return ((png_charp) "");
 }

 png_charp PNGAPI
 png_get_header_version(png_structp png_ptr)
 {
   /* Returns longer string containing both version and date */
-   png_ptr = png_ptr;  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) PNG_HEADER_VERSION_STRING);
+   if (&png_ptr != NULL)  /* silence compiler warning about unused png_ptr */
+      return ((png_charp) PNG_HEADER_VERSION_STRING);
+   return ((png_charp) "");
 }

 #if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
@@ -752,7 +751,7 @@ png_handle_as_unknown(png_structp png_ptr, png_bytep chunk_name)
   /* check chunk_name and return "keep" value if it's on the list, else 0 */
   int i;
   png_bytep p;
-   if(png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list<=0)
+   if((png_ptr == NULL && chunk_name == NULL) || png_ptr->num_chunk_list<=0)
      return 0;
   p=png_ptr->chunk_list+png_ptr->num_chunk_list*5-5;
   for (i = png_ptr->num_chunk_list; i; i--, p-=5)
@@ -797,13 +796,13 @@ png_init_mmx_flags (png_structp png_ptr)

    if (png_mmx_support() > 0) {
        png_ptr->asm_flags |= PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU
-#    ifdef PNG_HAVE_MMX_COMBINE_ROW
+#    ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
                              | PNG_ASM_FLAG_MMX_READ_COMBINE_ROW
 #    endif
-#    ifdef PNG_HAVE_MMX_READ_INTERLACE
+#    ifdef PNG_HAVE_ASSEMBLER_READ_INTERLACE
                              | PNG_ASM_FLAG_MMX_READ_INTERLACE
 #    endif
-#    ifndef PNG_HAVE_MMX_READ_FILTER_ROW
+#    ifndef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
                              ;
 #    else
                              | PNG_ASM_FLAG_MMX_READ_FILTER_SUB
--- a/png.h
+++ b/png.h
@@ -1,15 +1,15 @@

 /* png.h - header file for PNG reference library
 *
- * libpng version 1.2.19beta2 - May 19, 2007
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * libpng version 1.0.23rc1 - December 18, 2006
+ * Copyright (c) 1998-2006 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.)
 *
 * 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 1.2.19beta2 - May 19, 2007: Glenn
+ *  libpng versions 0.97, January 1998, through 1.0.23rc1 - December 18, 2006: Glenn
 *  See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@@ -135,22 +135,8 @@
 *    1.0.22                  10    10022  10.so.0.22[.0]
 *    1.2.14                  13    10214  12.so.0.14[.0]
 *    1.2.15beta1-6           13    10215  12.so.0.15[.0]
- *    1.0.23rc1-5             10    10023  10.so.0.23[.0]
- *    1.2.15rc1-5             13    10215  12.so.0.15[.0]
- *    1.0.23                  10    10023  10.so.0.23[.0]
- *    1.2.15                  13    10215  12.so.0.15[.0]
- *    1.2.16beta1-2           13    10216  12.so.0.16[.0]
- *    1.2.16rc1               13    10216  12.so.0.16[.0]
- *    1.0.24                  10    10024  10.so.0.24[.0]
- *    1.2.16                  13    10216  12.so.0.16[.0]
- *    1.2.17beta1-2           13    10217  12.so.0.17[.0]
- *    1.0.25rc1               10    10025  10.so.0.25[.0]
- *    1.2.17rc1-3             13    10217  12.so.0.17[.0]
- *    1.0.25                  10    10025  10.so.0.25[.0]
- *    1.2.17                  13    10217  12.so.0.17[.0]
- *    1.0.26                  10    10026  10.so.0.26[.0]
- *    1.2.18                  13    10218  12.so.0.18[.0]
- *    1.2.19beta1             13    10219  12.so.0.19[.0]
+ *    1.0.23rc1               10    10023  10.so.0.23[.0]
+ *    1.2.15rc1               13    10215  12.so.0.15[.0]
 *
 *    Henceforth the source version will match the shared-library major
 *    and minor numbers; the shared-library major version number will be
@@ -180,8 +166,8 @@
 * If you modify libpng you may insert additional notices immediately following
 * this sentence.
 *
- * libpng versions 1.2.6, August 15, 2004, through 1.2.19beta2, May 19, 2007, are
- * Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
+ * libpng versions 1.2.6, August 15, 2004, through 1.0.23rc1, December 18, 2006, are
+ * Copyright (c) 2004, 2006 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:
 *
@@ -292,13 +278,13 @@
 * Y2K compliance in libpng:
 * =========================
 *
- *    May 19, 2007
+ *    December 18, 2006
 *
 *    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 1.2.19beta2 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.0.23rc1 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
@@ -354,21 +340,21 @@
 */

 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.2.19beta2"
+#define PNG_LIBPNG_VER_STRING "1.0.23rc1"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.19beta2 - May 19, 2007 (header)\n"
+   " libpng version 1.0.23rc1 - December 18, 2006 (header)\n"

 #define PNG_LIBPNG_VER_SONUM   0
-#define PNG_LIBPNG_VER_DLLNUM  13
+#define PNG_LIBPNG_VER_DLLNUM  10

 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
-#define PNG_LIBPNG_VER_MINOR   2
-#define PNG_LIBPNG_VER_RELEASE 19
+#define PNG_LIBPNG_VER_MINOR   0
+#define PNG_LIBPNG_VER_RELEASE 23
 /* This should match the numeric part of the final component of
 * PNG_LIBPNG_VER_STRING, omitting any leading zero: */

-#define PNG_LIBPNG_VER_BUILD  2
+#define PNG_LIBPNG_VER_BUILD  1

 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -385,14 +371,14 @@
 #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with
                                       PNG_LIBPNG_BUILD_PRIVATE */

-#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_BETA
+#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_RC

 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
 * We must not include leading zeros.
 * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
 * 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 10219 /* 1.2.19 */
+#define PNG_LIBPNG_VER 10023 /* 1.0.23 */

 #ifndef PNG_VERSION_INFO_ONLY
 /* include the compression library's header */
@@ -480,7 +466,7 @@ extern "C" {
 * the version above.
 */
 #ifdef PNG_USE_GLOBAL_ARRAYS
-PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18];
+PNG_EXPORT_VAR (const char) png_libpng_ver[18];
  /* need room for 99.99.99beta99z */
 #else
 #define png_libpng_ver png_get_header_ver(NULL)
@@ -489,17 +475,17 @@ PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18];
 #ifdef PNG_USE_GLOBAL_ARRAYS
 /* This was removed in version 1.0.5c */
 /* Structures to facilitate easy interlacing.  See png.c for more details */
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_start[7];
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_inc[7];
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_ystart[7];
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_yinc[7];
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_mask[7];
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_dsp_mask[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_start[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_inc[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_ystart[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_yinc[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_mask[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_dsp_mask[7];
 #ifdef PNG_USE_PNGGCCRD
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_width[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_width[7];
 #endif
 /* This isn't currently used.  If you need it, see png.c for more details.
-PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_height[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_height[7];
 */
 #endif

@@ -1396,18 +1382,13 @@ struct png_struct_def
   png_uint_32 user_height_max;
 #endif

-/* New member added in libpng-1.0.25 and 1.2.17 */
-#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
-   /* storage for unknown chunk that the library doesn't recognize. */
-   png_unknown_chunk unknown_chunk;
-#endif
 };


 /* 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_2_19beta2;
+typedef png_structp version_1_0_23rc1;

 typedef png_struct FAR * FAR * png_structpp;

@@ -2403,7 +2384,7 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
   handling or default unknown chunk handling is not desired.  Any chunks not
   listed will be handled in the default manner.  The IHDR and IEND chunks
   must not be listed.
-      keep = 0: follow default behaviour
+      keep = 0: follow default behavour
           = 1: do not keep
           = 2: keep only if safe-to-copy
           = 3: keep even if unsafe-to-copy
@@ -2684,21 +2665,16 @@ extern PNG_EXPORT(void,png_save_uint_16)
 * be found in the files where the functions are located.
 */

+#if defined(PNG_INTERNAL)

-/* Various modes of operation, that are visible to applications because
- * they are used for unknown chunk location.
+/* Various modes of operation.  Note that after an init, mode is set to
+ * zero automatically when the structure is created.
 */
 #define PNG_HAVE_IHDR               0x01
 #define PNG_HAVE_PLTE               0x02
 #define PNG_HAVE_IDAT               0x04
 #define PNG_AFTER_IDAT              0x08 /* Have complete zlib datastream */
 #define PNG_HAVE_IEND               0x10
-
-#if defined(PNG_INTERNAL)
-
-/* More modes of operation.  Note that after an init, mode is set to
- * zero automatically when the structure is created.
- */
 #define PNG_HAVE_gAMA               0x20
 #define PNG_HAVE_cHRM               0x40
 #define PNG_HAVE_sRGB               0x80
@@ -2818,7 +2794,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
 #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
 /* place to hold the signature string for a PNG file. */
 #ifdef PNG_USE_GLOBAL_ARRAYS
-   PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sig[8];
+   PNG_EXPORT_VAR (const png_byte FARDATA) png_sig[8];
 #else
 #if 0
 #define png_sig png_sig_bytes(NULL)
@@ -2830,50 +2806,50 @@ extern PNG_EXPORT(void,png_save_uint_16)
 * define the name here, and add an invocation of the macro in png.c and
 * wherever it's needed.
 */
-#define PNG_IHDR PNG_CONST png_byte png_IHDR[5] = { 73,  72,  68,  82, '\0'}
-#define PNG_IDAT PNG_CONST png_byte png_IDAT[5] = { 73,  68,  65,  84, '\0'}
-#define PNG_IEND PNG_CONST png_byte png_IEND[5] = { 73,  69,  78,  68, '\0'}
-#define PNG_PLTE PNG_CONST png_byte png_PLTE[5] = { 80,  76,  84,  69, '\0'}
-#define PNG_bKGD PNG_CONST png_byte png_bKGD[5] = { 98,  75,  71,  68, '\0'}
-#define PNG_cHRM PNG_CONST png_byte png_cHRM[5] = { 99,  72,  82,  77, '\0'}
-#define PNG_gAMA PNG_CONST png_byte png_gAMA[5] = {103,  65,  77,  65, '\0'}
-#define PNG_hIST PNG_CONST png_byte png_hIST[5] = {104,  73,  83,  84, '\0'}
-#define PNG_iCCP PNG_CONST png_byte png_iCCP[5] = {105,  67,  67,  80, '\0'}
-#define PNG_iTXt PNG_CONST png_byte png_iTXt[5] = {105,  84,  88, 116, '\0'}
-#define PNG_oFFs PNG_CONST png_byte png_oFFs[5] = {111,  70,  70, 115, '\0'}
-#define PNG_pCAL PNG_CONST png_byte png_pCAL[5] = {112,  67,  65,  76, '\0'}
-#define PNG_sCAL PNG_CONST png_byte png_sCAL[5] = {115,  67,  65,  76, '\0'}
-#define PNG_pHYs PNG_CONST png_byte png_pHYs[5] = {112,  72,  89, 115, '\0'}
-#define PNG_sBIT PNG_CONST png_byte png_sBIT[5] = {115,  66,  73,  84, '\0'}
-#define PNG_sPLT PNG_CONST png_byte png_sPLT[5] = {115,  80,  76,  84, '\0'}
-#define PNG_sRGB PNG_CONST png_byte png_sRGB[5] = {115,  82,  71,  66, '\0'}
-#define PNG_tEXt PNG_CONST png_byte png_tEXt[5] = {116,  69,  88, 116, '\0'}
-#define PNG_tIME PNG_CONST png_byte png_tIME[5] = {116,  73,  77,  69, '\0'}
-#define PNG_tRNS PNG_CONST png_byte png_tRNS[5] = {116,  82,  78,  83, '\0'}
-#define PNG_zTXt PNG_CONST png_byte png_zTXt[5] = {122,  84,  88, 116, '\0'}
+#define PNG_IHDR const png_byte png_IHDR[5] = { 73,  72,  68,  82, '\0'}
+#define PNG_IDAT const png_byte png_IDAT[5] = { 73,  68,  65,  84, '\0'}
+#define PNG_IEND const png_byte png_IEND[5] = { 73,  69,  78,  68, '\0'}
+#define PNG_PLTE const png_byte png_PLTE[5] = { 80,  76,  84,  69, '\0'}
+#define PNG_bKGD const png_byte png_bKGD[5] = { 98,  75,  71,  68, '\0'}
+#define PNG_cHRM const png_byte png_cHRM[5] = { 99,  72,  82,  77, '\0'}
+#define PNG_gAMA const png_byte png_gAMA[5] = {103,  65,  77,  65, '\0'}
+#define PNG_hIST const png_byte png_hIST[5] = {104,  73,  83,  84, '\0'}
+#define PNG_iCCP const png_byte png_iCCP[5] = {105,  67,  67,  80, '\0'}
+#define PNG_iTXt const png_byte png_iTXt[5] = {105,  84,  88, 116, '\0'}
+#define PNG_oFFs const png_byte png_oFFs[5] = {111,  70,  70, 115, '\0'}
+#define PNG_pCAL const png_byte png_pCAL[5] = {112,  67,  65,  76, '\0'}
+#define PNG_sCAL const png_byte png_sCAL[5] = {115,  67,  65,  76, '\0'}
+#define PNG_pHYs const png_byte png_pHYs[5] = {112,  72,  89, 115, '\0'}
+#define PNG_sBIT const png_byte png_sBIT[5] = {115,  66,  73,  84, '\0'}
+#define PNG_sPLT const png_byte png_sPLT[5] = {115,  80,  76,  84, '\0'}
+#define PNG_sRGB const png_byte png_sRGB[5] = {115,  82,  71,  66, '\0'}
+#define PNG_tEXt const png_byte png_tEXt[5] = {116,  69,  88, 116, '\0'}
+#define PNG_tIME const png_byte png_tIME[5] = {116,  73,  77,  69, '\0'}
+#define PNG_tRNS const png_byte png_tRNS[5] = {116,  82,  78,  83, '\0'}
+#define PNG_zTXt const png_byte png_zTXt[5] = {122,  84,  88, 116, '\0'}

 #ifdef PNG_USE_GLOBAL_ARRAYS
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_IHDR[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_IDAT[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_IEND[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_PLTE[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_bKGD[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_cHRM[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_gAMA[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_hIST[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_iCCP[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_iTXt[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_oFFs[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_pCAL[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sCAL[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_pHYs[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sBIT[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sPLT[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sRGB[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_tEXt[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_tIME[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_tRNS[5];
-PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_zTXt[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_IHDR[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_IDAT[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_IEND[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_PLTE[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_bKGD[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_cHRM[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_gAMA[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_hIST[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_iCCP[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_iTXt[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_oFFs[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_pCAL[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_sCAL[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_pHYs[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_sBIT[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_sPLT[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_sRGB[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_tEXt[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_tIME[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_tRNS[5];
+PNG_EXPORT_VAR (const png_byte FARDATA) png_zTXt[5];
 #endif /* PNG_USE_GLOBAL_ARRAYS */

 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,9 +1,9 @@

 /* pngconf.h - machine configurable file for libpng
 *
- * libpng version 1.2.19beta2 - May 19, 2007
+ * libpng version 1.0.23rc1 - December 18, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2005 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.)
 */
@@ -17,18 +17,12 @@
 #ifndef PNGCONF_H
 #define PNGCONF_H

-#define PNG_1_2_X
+#define PNG_1_0_X

 /* 
 * PNG_USER_CONFIG has to be defined on the compiler command line. This
 * includes the resource compiler for Windows DLL configurations.
 */
-#ifdef PNG_USER_CONFIG
-#  ifndef PNG_USER_PRIVATEBUILD
-#    define PNG_USER_PRIVATEBUILD
-#  endif
-#include "pngusr.h"
-#endif

 /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
 #ifdef PNG_CONFIGURE_LIBPNG
@@ -733,14 +727,10 @@
 #  ifndef PNG_ASSEMBLER_CODE_SUPPORTED
 #    define PNG_ASSEMBLER_CODE_SUPPORTED
 #  endif
-
-#if 0 /* we may not need this any more. */
 #  if defined(XP_MACOSX) && !defined(PNG_NO_MMX_CODE)
     /* work around Intel-Mac compiler bug */
 #    define PNG_NO_MMX_CODE
 #  endif
-#endif
-
 #  if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) && \
     defined(__MMX__)
 #    define PNG_MMX_CODE_SUPPORTED
@@ -1462,9 +1452,9 @@ typedef z_stream FAR *  png_zstreamp;
 * MMX will be detected at run time and used if present.
 */
 #ifdef PNG_USE_PNGVCRD
-#  define PNG_HAVE_MMX_COMBINE_ROW
-#  define PNG_HAVE_MMX_READ_INTERLACE
-#  define PNG_HAVE_MMX_READ_FILTER_ROW
+#  define PNG_HAVE_ASSEMBLER_COMBINE_ROW
+#  define PNG_HAVE_ASSEMBLER_READ_INTERLACE
+#  define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
 #endif

 /* Set this in the makefile for gcc/as on Pentium, not here. */
@@ -1472,9 +1462,9 @@ typedef z_stream FAR *  png_zstreamp;
 * MMX will be detected at run time and used if present.
 */
 #ifdef PNG_USE_PNGGCCRD
-#  define PNG_HAVE_MMX_COMBINE_ROW
-#  define PNG_HAVE_MMX_READ_INTERLACE
-#  define PNG_HAVE_MMX_READ_FILTER_ROW
+#  define PNG_HAVE_ASSEMBLER_COMBINE_ROW
+#  define PNG_HAVE_ASSEMBLER_READ_INTERLACE
+#  define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
 #endif
 /* - see pnggccrd.c for info about what is currently enabled */

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

 /* pngerror.c - stub functions for i/o and memory allocation
 *
- * Last changed in libpng 1.2.19 May 19, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2006 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -228,7 +228,9 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
   PNG_ABORT();
 #endif
 #ifdef PNG_NO_CONSOLE_IO
-   error_message = error_message; /* make compiler happy */ ;
+   /* make compiler happy */ ;
+   if (&error_message != NULL)
+      return;
 #endif
 }

@@ -265,9 +267,13 @@ png_default_warning(png_structp png_ptr, png_const_charp warning_message)
 #  endif
     fprintf(stderr, "libpng warning: %s\n", warning_message);
 #else
-   warning_message = warning_message; /* make compiler happy */ ;
+   /* make compiler happy */ ;
+   if (warning_message)
+     return;
 #endif
-   png_ptr = png_ptr; /* make compiler happy */ ;
+   /* make compiler happy */ ;
+   if (png_ptr)
+      return;
 }

 /* This function is called when the application wants to use another method
--- a/pnggccrd.c
+++ b/pnggccrd.c
@@ -7,9 +7,9 @@
 *     and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
 *     for Intel's performance analysis of the MMX vs. non-MMX code.
 *
- * Last changed in libpng 1.2.19 May 17, 2007
+ * Last changed in libpng 1.2.9 April 14, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 Glenn Randers-Pehrson
 * Copyright (c) 1998, Intel Corporation
 *
 * Based on MSVC code contributed by Nirav Chhatrapati, Intel Corp., 1998.
@@ -250,9 +250,9 @@
 int PNGAPI png_mmx_support(void);

 #ifdef PNG_USE_LOCAL_ARRAYS
-static PNG_CONST int FARDATA png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
-static PNG_CONST int FARDATA png_pass_inc[7]   = {8, 8, 4, 4, 2, 2, 1};
-static PNG_CONST int FARDATA png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
+static const int FARDATA png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
+static const int FARDATA png_pass_inc[7]   = {8, 8, 4, 4, 2, 2, 1};
+static const int FARDATA png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
 #endif

 #if defined(PNG_MMX_CODE_SUPPORTED)
@@ -311,30 +311,30 @@ static PNG_CONST int FARDATA png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
 static int _unmask;
 #endif

-static PNG_CONST unsigned long long _mask8_0  = 0x0102040810204080LL;
+static unsigned long long _mask8_0  = 0x0102040810204080LL;

-static PNG_CONST unsigned long long _mask16_1 = 0x0101020204040808LL;
-static PNG_CONST unsigned long long _mask16_0 = 0x1010202040408080LL;
+static unsigned long long _mask16_1 = 0x0101020204040808LL;
+static unsigned long long _mask16_0 = 0x1010202040408080LL;

-static PNG_CONST unsigned long long _mask24_2 = 0x0101010202020404LL;
-static PNG_CONST unsigned long long _mask24_1 = 0x0408080810101020LL;
-static PNG_CONST unsigned long long _mask24_0 = 0x2020404040808080LL;
+static unsigned long long _mask24_2 = 0x0101010202020404LL;
+static unsigned long long _mask24_1 = 0x0408080810101020LL;
+static unsigned long long _mask24_0 = 0x2020404040808080LL;

-static PNG_CONST unsigned long long _mask32_3 = 0x0101010102020202LL;
-static PNG_CONST unsigned long long _mask32_2 = 0x0404040408080808LL;
-static PNG_CONST unsigned long long _mask32_1 = 0x1010101020202020LL;
-static PNG_CONST unsigned long long _mask32_0 = 0x4040404080808080LL;
+static unsigned long long _mask32_3 = 0x0101010102020202LL;
+static unsigned long long _mask32_2 = 0x0404040408080808LL;
+static unsigned long long _mask32_1 = 0x1010101020202020LL;
+static unsigned long long _mask32_0 = 0x4040404080808080LL;

-static PNG_CONST unsigned long long _mask48_5 = 0x0101010101010202LL;
-static PNG_CONST unsigned long long _mask48_4 = 0x0202020204040404LL;
-static PNG_CONST unsigned long long _mask48_3 = 0x0404080808080808LL;
-static PNG_CONST unsigned long long _mask48_2 = 0x1010101010102020LL;
-static PNG_CONST unsigned long long _mask48_1 = 0x2020202040404040LL;
-static PNG_CONST unsigned long long _mask48_0 = 0x4040808080808080LL;
+static unsigned long long _mask48_5 = 0x0101010101010202LL;
+static unsigned long long _mask48_4 = 0x0202020204040404LL;
+static unsigned long long _mask48_3 = 0x0404080808080808LL;
+static unsigned long long _mask48_2 = 0x1010101010102020LL;
+static unsigned long long _mask48_1 = 0x2020202040404040LL;
+static unsigned long long _mask48_0 = 0x4040808080808080LL;

-static PNG_CONST unsigned long long _const4   = 0x0000000000FFFFFFLL;
-//static PNG_CONST unsigned long long _const5 = 0x000000FFFFFF0000LL;     // NOT USED
-static PNG_CONST unsigned long long _const6   = 0x00000000000000FFLL;
+static unsigned long long _const4   = 0x0000000000FFFFFFLL;
+//static unsigned long long _const5 = 0x000000FFFFFF0000LL;     // NOT USED
+static unsigned long long _const6   = 0x00000000000000FFLL;

 // These are used in the row-filter routines and should/would be local
 //  variables if not for gcc addressing limitations.
--- a/pngget.c
+++ b/pngget.c
@@ -1,9 +1,9 @@

 /* pngget.c - retrieval of values from info struct
 *
- * Last changed in libpng 1.2.15 January 5, 2007
+ * Last changed in libpng 1.2.9 April 14, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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/pngpread.c
+++ b/pngpread.c
@@ -1,9 +1,9 @@

 /* pngpread.c - read a png file in push mode
 *
- * Last changed in libpng 1.2.19 May 19, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 */
@@ -990,25 +990,25 @@ png_read_push_finish_row(png_structp png_ptr)
   /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */

   /* start of interlace block */
-   PNG_CONST int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
+   const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};

   /* offset to next interlace block */
-   PNG_CONST int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+   const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};

   /* start of interlace block in the y direction */
-   PNG_CONST int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
+   const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};

   /* offset to next interlace block in the y direction */
-   PNG_CONST int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
+   const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};

   /* Width of interlace block.  This is not currently used - if you need
    * it, uncomment it here and in png.h
-   PNG_CONST int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
+   const int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
   */

   /* Height of interlace block.  This is not currently used - if you need
    * it, uncomment it here and in png.h
-   PNG_CONST int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
+   const int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
   */
 #endif

@@ -1062,7 +1062,8 @@ png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
   if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
      {
         png_error(png_ptr, "Out of place tEXt");
-         info_ptr = info_ptr; /* to quiet some compiler warnings */
+         /* to quiet some compiler warnings */
+         if(info_ptr == NULL) return;
      }

 #ifdef PNG_MAX_MALLOC_64K
@@ -1158,7 +1159,8 @@ png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
   if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
      {
         png_error(png_ptr, "Out of place zTXt");
-         info_ptr = info_ptr; /* to quiet some compiler warnings */
+         /* to quiet some compiler warnings */
+         if(info_ptr == NULL) return;
      }

 #ifdef PNG_MAX_MALLOC_64K
@@ -1350,7 +1352,8 @@ png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
   if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
      {
         png_error(png_ptr, "Out of place iTXt");
-         info_ptr = info_ptr; /* to quiet some compiler warnings */
+         /* to quiet some compiler warnings */
+         if(info_ptr == NULL) return;
      }

 #ifdef PNG_MAX_MALLOC_64K
@@ -1477,12 +1480,16 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
 #endif
         png_chunk_error(png_ptr, "unknown critical chunk");

-      info_ptr = info_ptr; /* to quiet some compiler warnings */
+      /* to quiet compiler warnings about unused info_ptr */
+      if (info_ptr == NULL)
+         return;
   }

 #if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
   if (png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS)
   {
+       png_unknown_chunk chunk;
+
 #ifdef PNG_MAX_MALLOC_64K
       if (length > (png_uint_32)65535L)
       {
@@ -1491,35 +1498,28 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
           length = (png_uint_32)65535L;
       }
 #endif
-       png_strcpy((png_charp)png_ptr->unknown_chunk.name,
-         (png_charp)png_ptr->chunk_name);
-       png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr, length);
-       png_ptr->unknown_chunk.size = (png_size_t)length;
-       png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length);
+
+       png_strcpy((png_charp)chunk.name, (png_charp)png_ptr->chunk_name);
+       chunk.data = (png_bytep)png_malloc(png_ptr, length);
+       png_crc_read(png_ptr, chunk.data, length);
+       chunk.size = length;
 #if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
       if(png_ptr->read_user_chunk_fn != NULL)
       {
          /* callback to user unknown chunk handler */
-          int ret;
-          ret = (*(png_ptr->read_user_chunk_fn))
-            (png_ptr, &png_ptr->unknown_chunk);
-          if (ret < 0)
-             png_chunk_error(png_ptr, "error in user chunk");
-          if (ret == 0)
+          if ((*(png_ptr->read_user_chunk_fn)) (png_ptr, &chunk) <= 0)
          {
             if (!(png_ptr->chunk_name[0] & 0x20))
                if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
                     PNG_HANDLE_CHUNK_ALWAYS)
                   png_chunk_error(png_ptr, "unknown critical chunk");
-                png_set_unknown_chunks(png_ptr, info_ptr,
-                   &png_ptr->unknown_chunk, 1);
          }
+             png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1);
       }
-#else
-       png_set_unknown_chunks(png_ptr, info_ptr, &png_ptr->unknown_chunk, 1);
+       else
 #endif
-       png_free(png_ptr, png_ptr->unknown_chunk.data);
-       png_ptr->unknown_chunk.data = NULL;
+          png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1);
+       png_free(png_ptr, chunk.data);
   }
   else
 #endif
@@ -1553,11 +1553,11 @@ void PNGAPI
 png_progressive_combine_row (png_structp png_ptr,
   png_bytep old_row, png_bytep new_row)
 {
+   if(png_ptr == NULL) return;
 #ifdef PNG_USE_LOCAL_ARRAYS
-   PNG_CONST int FARDATA png_pass_dsp_mask[7] =
+   const int FARDATA png_pass_dsp_mask[7] =
      {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
 #endif
-   if(png_ptr == NULL) return;
   if (new_row != NULL)    /* new_row must == png_ptr->row_buf here. */
      png_combine_row(png_ptr, old_row, png_pass_dsp_mask[png_ptr->pass]);
 }
--- a/pngread.c
+++ b/pngread.c
@@ -1,9 +1,9 @@

 /* pngread.c - read a PNG file
 *
- * Last changed in libpng 1.2.17 May 15, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 *
@@ -568,9 +568,8 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
 {
 #ifdef PNG_USE_LOCAL_ARRAYS
   PNG_IDAT;
-   PNG_CONST int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55,
-     0xff};
-   PNG_CONST int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
+   const int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
+   const int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
 #endif
   int ret;
   if(png_ptr == NULL) return;
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,9 +1,9 @@

 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * Last changed in libpng 1.2.17 May 15, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 *
@@ -94,6 +94,17 @@ png_set_background(png_structp png_ptr,
   png_ptr->background_gamma = (float)background_gamma;
   png_ptr->background_gamma_type = (png_byte)(background_gamma_code);
   png_ptr->transformations |= (need_expand ? PNG_BACKGROUND_EXPAND : 0);
+
+   /* Note:  if need_expand is set and color_type is either RGB or RGB_ALPHA
+    * (in which case need_expand is superfluous anyway), the background color
+    * might actually be gray yet not be flagged as such. This is not a problem
+    * for the current code, which uses PNG_BACKGROUND_IS_GRAY only to
+    * decide when to do the png_do_gray_to_rgb() transformation.
+    */
+   if ((need_expand && !(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) ||
+       (!need_expand && background_color->red == background_color->green &&
+        background_color->red == background_color->blue))
+      png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
 }
 #endif

@@ -583,7 +594,7 @@ png_set_expand_gray_1_2_4_to_8(png_structp png_ptr)
 {
   png_debug(1, "in png_set_expand_gray_1_2_4_to_8\n");
   if(png_ptr == NULL) return;
-   png_ptr->transformations |= PNG_EXPAND;
+   png_ptr->transformations |= PNG_EXPAND_tRNS;
 }
 #endif

@@ -721,32 +732,6 @@ png_init_read_transformations(png_structp png_ptr)
 #endif

 #if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED)
-
-#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED)
-   /* Detect gray background and attempt to enable optimization
-    * for gray --> RGB case */
-   /* Note:  if PNG_BACKGROUND_EXPAND is set and color_type is either RGB or
-    * RGB_ALPHA (in which case need_expand is superfluous anyway), the
-    * background color might actually be gray yet not be flagged as such.
-    * This is not a problem for the current code, which uses
-    * PNG_BACKGROUND_IS_GRAY only to decide when to do the
-    * png_do_gray_to_rgb() transformation.
-    */
-   if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
-       !(color_type & PNG_COLOR_MASK_COLOR))
-   {
-          png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
-   } else if ((png_ptr->transformations & PNG_BACKGROUND) &&
-              !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
-              (png_ptr->transformations & PNG_GRAY_TO_RGB) &&
-              png_ptr->background.red == png_ptr->background.green &&
-              png_ptr->background.red == png_ptr->background.blue)
-   {
-          png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
-          png_ptr->background.gray = png_ptr->background.red;
-   }
-#endif
-
   if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
       (png_ptr->transformations & PNG_EXPAND))
   {
@@ -1293,9 +1278,9 @@ png_do_read_transformations(png_structp png_ptr)
      if(rgb_error)
      {
         png_ptr->rgb_to_gray_status=1;
-         if(png_ptr->transformations & PNG_RGB_TO_GRAY_WARN)
+         if(png_ptr->transformations == PNG_RGB_TO_GRAY_WARN)
            png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel");
-         if(png_ptr->transformations & PNG_RGB_TO_GRAY_ERR)
+         if(png_ptr->transformations == PNG_RGB_TO_GRAY_ERR)
            png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel");
      }
   }
@@ -3699,7 +3684,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
            {
               case 1:
               {
-                  gray = (png_uint_16)((gray&0x01)*0xff);
+                  gray = (png_uint_16)(gray*0xff);
                  sp = row + (png_size_t)((row_width - 1) >> 3);
                  dp = row + (png_size_t)row_width - 1;
                  shift = 7 - (int)((row_width + 7) & 0x07);
@@ -3723,7 +3708,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
               }
               case 2:
               {
-                  gray = (png_uint_16)((gray&0x03)*0x55);
+                  gray = (png_uint_16)(gray*0x55);
                  sp = row + (png_size_t)((row_width - 1) >> 2);
                  dp = row + (png_size_t)row_width - 1;
                  shift = (int)((3 - ((row_width + 3) & 0x03)) << 1);
@@ -3746,7 +3731,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
               }
               case 4:
               {
-                  gray = (png_uint_16)((gray&0x07)*0x11);
+                  gray = (png_uint_16)(gray*0x11);
                  sp = row + (png_size_t)((row_width - 1) >> 1);
                  dp = row + (png_size_t)row_width - 1;
                  shift = (int)((1 - ((row_width + 1) & 0x01)) << 2);
@@ -3776,7 +3761,6 @@ png_do_expand(png_row_infop row_info, png_bytep row,
         {
            if (row_info->bit_depth == 8)
            {
-               gray = gray & 0xff;
               sp = row + (png_size_t)row_width - 1;
               dp = row + (png_size_t)(row_width << 1) - 1;
               for (i = 0; i < row_width; i++)
@@ -3790,13 +3774,12 @@ png_do_expand(png_row_infop row_info, png_bytep row,
            }
            else if (row_info->bit_depth == 16)
            {
-               png_byte gray_high = (gray >> 8) & 0xff;
-               png_byte gray_low = gray & 0xff;
               sp = row + row_info->rowbytes - 1;
               dp = row + (row_info->rowbytes << 1) - 1;
               for (i = 0; i < row_width; i++)
               {
-                  if (*(sp-1) == gray_high && *(sp) == gray_low) 
+                  if (((png_uint_16)*(sp) |
+                     ((png_uint_16)*(sp - 1) << 8)) == gray)
                  {
                     *dp-- = 0;
                     *dp-- = 0;
@@ -3821,14 +3804,13 @@ png_do_expand(png_row_infop row_info, png_bytep row,
      {
         if (row_info->bit_depth == 8)
         {
-            png_byte red = trans_value->red & 0xff;
-            png_byte green = trans_value->green & 0xff;
-            png_byte blue = trans_value->blue & 0xff;
            sp = row + (png_size_t)row_info->rowbytes - 1;
            dp = row + (png_size_t)(row_width << 2) - 1;
            for (i = 0; i < row_width; i++)
            {
-               if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue)
+               if (*(sp - 2) == trans_value->red &&
+                  *(sp - 1) == trans_value->green &&
+                  *(sp - 0) == trans_value->blue)
                  *dp-- = 0;
               else
                  *dp-- = 0xff;
@@ -3839,22 +3821,16 @@ png_do_expand(png_row_infop row_info, png_bytep row,
         }
         else if (row_info->bit_depth == 16)
         {
-            png_byte red_high = (trans_value->red > 8) & 0xff;
-            png_byte green_high = (trans_value->green > 8) & 0xff;
-            png_byte blue_high = (trans_value->blue > 8) & 0xff;
-            png_byte red_low = trans_value->red & 0xff;
-            png_byte green_low = trans_value->green & 0xff;
-            png_byte blue_low = trans_value->blue & 0xff;
            sp = row + row_info->rowbytes - 1;
            dp = row + (png_size_t)(row_width << 3) - 1;
            for (i = 0; i < row_width; i++)
            {
-               if (*(sp - 4) == red_high &&
-                  *(sp - 5) == red_low &&
-                  *(sp - 2) == green_high &&
-                  *(sp - 3) == green_low &&
-                  *(sp - 0) == blue_high &&
-                  *(sp - 1) == blue_low)
+               if ((((png_uint_16)*(sp - 4) |
+                  ((png_uint_16)*(sp - 5) << 8)) == trans_value->red) &&
+                  (((png_uint_16)*(sp - 2) |
+                  ((png_uint_16)*(sp - 3) << 8)) == trans_value->green) &&
+                  (((png_uint_16)*(sp - 0) |
+                  ((png_uint_16)*(sp - 1) << 8)) == trans_value->blue))
               {
                  *dp-- = 0;
                  *dp-- = 0;
@@ -3974,7 +3950,7 @@ png_do_dither(png_row_infop row_info, png_bytep row,

 #ifdef PNG_FLOATING_POINT_SUPPORTED
 #if defined(PNG_READ_GAMMA_SUPPORTED)
-static PNG_CONST int png_gamma_shift[] =
+static int png_gamma_shift[] =
   {0x10, 0x21, 0x42, 0x84, 0x110, 0x248, 0x550, 0xff0, 0x00};

 /* We build the 8- or 16-bit gamma tables here.  Note that for 16-bit
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,9 +1,9 @@

 /* pngrutil.c - utilities to read a PNG file
 *
- * Last changed in libpng 1.2.19 May 19, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 *
@@ -19,7 +19,7 @@
 #ifdef PNG_FLOATING_POINT_SUPPORTED
 #  if defined(_WIN32_WCE)
 /* strtod() function is not supported on WindowsCE */
-__inline double png_strtod(png_structp png_ptr, PNG_CONST char *nptr, char **endptr)
+__inline double png_strtod(png_structp png_ptr, const char *nptr, char **endptr)
 {
   double result = 0;
   int len;
@@ -181,7 +181,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
                              png_charp chunkdata, png_size_t chunklength,
                              png_size_t prefix_size, png_size_t *newlength)
 {
-   static PNG_CONST char msg[] = "Error decoding compressed text";
+   static char msg[] = "Error decoding compressed text";
   png_charp text;
   png_size_t text_size;

@@ -563,7 +563,7 @@ png_handle_IEND(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   }
   png_crc_finish(png_ptr, length);

-   if (info_ptr == NULL) /* quiet compiler warnings about unused info_ptr */
+   if (&info_ptr == NULL) /* quiet compiler warnings about unused info_ptr */
      return;
 }

@@ -1314,10 +1314,7 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   }

   if (png_crc_finish(png_ptr, 0))
-   {
-      png_ptr->num_trans = 0;
      return;
-   }

   png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans,
      &(png_ptr->trans_values));
@@ -2176,6 +2173,8 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if ((png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) ||
       (png_ptr->read_user_chunk_fn != NULL))
   {
+       png_unknown_chunk chunk;
+
 #ifdef PNG_MAX_MALLOC_64K
       if (length > (png_uint_32)65535L)
       {
@@ -2184,35 +2183,30 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
           length = (png_uint_32)65535L;
       }
 #endif
-       png_strcpy((png_charp)png_ptr->unknown_chunk.name,
-         (png_charp)png_ptr->chunk_name);
-       png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr, length);
-       png_ptr->unknown_chunk.size = (png_size_t)length;
-       png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length);
+       png_strcpy((png_charp)chunk.name, (png_charp)png_ptr->chunk_name);
+       chunk.data = (png_bytep)png_malloc(png_ptr, length);
+       chunk.size = (png_size_t)length;
+       png_crc_read(png_ptr, (png_bytep)chunk.data, length);
 #if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
       if(png_ptr->read_user_chunk_fn != NULL)
       {
          /* callback to user unknown chunk handler */
-          int ret;
-          ret = (*(png_ptr->read_user_chunk_fn))
-            (png_ptr, &png_ptr->unknown_chunk);
-          if (ret < 0)
-             png_chunk_error(png_ptr, "error in user chunk");
-          if (ret == 0)
+          if ((*(png_ptr->read_user_chunk_fn)) (png_ptr, &chunk) <= 0)
          {
             if (!(png_ptr->chunk_name[0] & 0x20))
                if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
                     PNG_HANDLE_CHUNK_ALWAYS)
+                 {
+                   png_free(png_ptr, chunk.data);
                   png_chunk_error(png_ptr, "unknown critical chunk");
-             png_set_unknown_chunks(png_ptr, info_ptr,
-               &png_ptr->unknown_chunk, 1);
+                 }
+             png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1);
          }
       }
-#else
-       png_set_unknown_chunks(png_ptr, info_ptr, &png_ptr->unknown_chunk, 1);
+       else
 #endif
-       png_free(png_ptr, png_ptr->unknown_chunk.data);
-       png_ptr->unknown_chunk.data = NULL;
+          png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1);
+       png_free(png_ptr, chunk.data);
   }
   else
 #endif
@@ -2221,7 +2215,8 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   png_crc_finish(png_ptr, skip);

 #if !defined(PNG_READ_USER_CHUNKS_SUPPORTED)
-   info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */
+   if (&info_ptr == NULL) /* quiet compiler warnings about unused info_ptr */
+      return;
 #endif
 }

@@ -2473,7 +2468,7 @@ png_do_read_interlace(png_structp png_ptr)
 #ifdef PNG_USE_LOCAL_ARRAYS
   /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */
   /* offset to next interlace block */
-   PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
 #endif

   png_debug(1,"in png_do_read_interlace (stock C version)\n");
@@ -2680,7 +2675,8 @@ png_do_read_interlace(png_structp png_ptr)
      row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width);
   }
 #if !defined(PNG_READ_PACKSWAP_SUPPORTED)
-   transformations = transformations; /* silence compiler warning */
+   if (&transformations == NULL) /* silence compiler warning */
+      return;
 #endif
 }
 #endif /* !PNG_HAVE_MMX_READ_INTERLACE */
@@ -2818,16 +2814,16 @@ png_read_finish_row(png_structp png_ptr)
   /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */

   /* start of interlace block */
-   PNG_CONST int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
+   const int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};

   /* offset to next interlace block */
-   PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};

   /* start of interlace block in the y direction */
-   PNG_CONST int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
+   const int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};

   /* offset to next interlace block in the y direction */
-   PNG_CONST int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
+   const int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
 #endif

   png_debug(1, "in png_read_finish_row\n");
@@ -2945,16 +2941,16 @@ png_read_start_row(png_structp png_ptr)
   /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */

   /* start of interlace block */
-   PNG_CONST int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
+   const int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};

   /* offset to next interlace block */
-   PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};

   /* start of interlace block in the y direction */
-   PNG_CONST int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
+   const int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};

   /* offset to next interlace block in the y direction */
-   PNG_CONST int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
+   const int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
 #endif

   int max_pixel_depth;
--- a/pngset.c
+++ b/pngset.c
@@ -1,9 +1,9 @@

 /* pngset.c - storage of image information into info struct
 *
- * Last changed in libpng 1.2.17 May 15, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 *
@@ -877,9 +877,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
         textp->itxt_length = 0;
 #endif
      }
-#if 0 /* appears to be redundant; */
      info_ptr->text[info_ptr->num_text]= *textp;
-#endif
      info_ptr->num_text++;
      png_debug1(3, "transferred text chunk %d\n", info_ptr->num_text);
   }
@@ -1202,13 +1200,13 @@ png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags)
 #ifdef PNG_MMX_CODE_SUPPORTED

    settable_mmx_flags =
-#ifdef PNG_HAVE_MMX_COMBINE_ROW
+#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
                         PNG_ASM_FLAG_MMX_READ_COMBINE_ROW  |
 #endif
-#ifdef PNG_HAVE_MMX_READ_INTERLACE
+#ifdef PNG_HAVE_ASSEMBLER_READ_INTERLACE
                         PNG_ASM_FLAG_MMX_READ_INTERLACE    |
 #endif
-#ifdef PNG_HAVE_MMX_READ_FILTER_ROW
+#ifdef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
                         PNG_ASM_FLAG_MMX_READ_FILTER_SUB   |
                         PNG_ASM_FLAG_MMX_READ_FILTER_UP    |
                         PNG_ASM_FLAG_MMX_READ_FILTER_AVG   |
--- a/pngtest.c
+++ b/pngtest.c
@@ -81,6 +81,18 @@ static float t_start, t_stop, t_decode, t_encode, t_misc;
 #include <time.h>
 #endif

+/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
+#ifndef png_jmpbuf
+#  define png_jmpbuf(png_ptr) png_ptr->jmpbuf
+#endif
+
+#ifdef PNGTEST_TIMING
+static float t_start, t_stop, t_decode, t_encode, t_misc;
+#if !defined(PNG_tIME_SUPPORTED)
+#include <time.h>
+#endif
+#endif
+
 #if defined(PNG_TIME_RFC1123_SUPPORTED)
 static int tIME_chunk_present=0;
 static char tIME_string[30] = "no tIME chunk present in file";
@@ -103,16 +115,6 @@ static int status_pass=1;
 static int status_dots_requested=0;
 static int status_dots=1;

-/* In case a system header (e.g., on AIX) defined jmpbuf */
-#ifdef jmpbuf
-#  undef jmpbuf
-#endif
-
-/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
-#ifndef png_jmpbuf
-#  define png_jmpbuf(png_ptr) png_ptr->jmpbuf
-#endif
-
 void
 #ifdef PNG_1_0_X
 PNGAPI
@@ -534,8 +536,7 @@ png_debug_malloc(png_structp png_ptr, png_uint_32 size)
      /* Make sure the caller isn't assuming zeroed memory. */
      png_memset(pinfo->pointer, 0xdd, pinfo->size);
      if(verbose)
-         printf("png_malloc %lu bytes at %x\n",(unsigned long)size,
-          pinfo->pointer);
+         printf("png_malloc %lu bytes at %x\n",size,pinfo->pointer);
      return (png_voidp)(pinfo->pointer);
   }
 }
@@ -1187,7 +1188,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
      iwidth = png_get_image_width(write_ptr, write_info_ptr);
      iheight = png_get_image_height(write_ptr, write_info_ptr);
      fprintf(STDERR, "Image width = %lu, height = %lu\n",
-         (unsigned long)iwidth, (unsigned long)iheight);
+         iwidth, iheight);
   }
 #endif

@@ -1311,8 +1312,7 @@ main(int argc, char *argv[])
   fprintf(STDERR, "   with zlib   version %s\n", ZLIB_VERSION);
   fprintf(STDERR,"%s",png_get_copyright(NULL));
   /* Show the version of libpng used in building the library */
-   fprintf(STDERR," library (%lu):%s",
-      (unsigned long)png_access_version_number(),
+   fprintf(STDERR," library (%lu):%s", png_access_version_number(),
      png_get_header_version(NULL));
   /* Show the version of libpng used in building the application */
   fprintf(STDERR," pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
@@ -1400,8 +1400,7 @@ main(int argc, char *argv[])
         if (kerror == 0)
         {
 #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-            fprintf(STDERR, "\n PASS (%lu zero samples)\n",
-               (unsigned long)zero_samples);
+            fprintf(STDERR, "\n PASS (%lu zero samples)\n",zero_samples);
 #else
            fprintf(STDERR, " PASS\n");
 #endif
@@ -1409,7 +1408,7 @@ 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,filters_used[k]);
 #endif
 #if defined(PNG_TIME_RFC1123_SUPPORTED)
         if(tIME_chunk_present != 0)
@@ -1434,7 +1433,7 @@ main(int argc, char *argv[])
               current_allocation);
            while (pinfo != NULL)
            {
-               fprintf(STDERR, " %lu bytes at %x\n", (unsigned long)pinfo->size,
+               fprintf(STDERR, " %lu bytes at %x\n", pinfo->size,
                 (unsigned int) pinfo->pointer);
               pinfo = pinfo->next;
            }
@@ -1474,8 +1473,7 @@ main(int argc, char *argv[])
                int k;
 #endif
 #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-                fprintf(STDERR, "\n PASS (%lu zero samples)\n",
-                   (unsigned long)zero_samples);
+                fprintf(STDERR, "\n PASS (%lu zero samples)\n",zero_samples);
 #else
                fprintf(STDERR, " PASS\n");
 #endif
@@ -1483,7 +1481,7 @@ 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,filters_used[k]);
 #endif
 #if defined(PNG_TIME_RFC1123_SUPPORTED)
             if(tIME_chunk_present != 0)
@@ -1511,7 +1509,7 @@ main(int argc, char *argv[])
             while (pinfo != NULL)
             {
                fprintf(STDERR," %lu bytes at %x\n",
-                   (unsigned long)pinfo->size, (unsigned int)pinfo->pointer);
+                   pinfo->size, (unsigned int)pinfo->pointer);
                pinfo = pinfo->next;
             }
          }
@@ -1551,4 +1549,4 @@ main(int argc, char *argv[])
 }

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_19beta2 your_png_h_is_not_version_1_2_19beta2;
+typedef version_1_0_23rc1 your_png_h_is_not_version_1_0_23rc1;
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,9 +1,9 @@

 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * Last changed in libpng 1.2.17 May 15, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 */
@@ -652,11 +652,10 @@ png_set_user_transform_info(png_structp png_ptr, png_voidp
 png_voidp PNGAPI
 png_get_user_transform_ptr(png_structp png_ptr)
 {
-#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
   if (png_ptr == NULL) return (NULL);
+#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
   return ((png_voidp)png_ptr->user_transform_ptr);
-#else
-   return (NULL);
 #endif
+   return (NULL);
 }
 #endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
--- a/pngvcrd.c
+++ b/pngvcrd.c
@@ -3,9 +3,9 @@
 *
 * For Intel x86 CPU and Microsoft Visual C++ compiler
 *
- * Last changed in libpng 1.2.17 May 15, 2007
+ * Last changed in libpng 1.2.6 - August 15, 2004
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * Copyright (c) 1998, Intel Corporation
 *
 * Contributed by Nirav Chhatrapati, Intel Corporation, 1998
@@ -110,7 +110,7 @@ void /* PRIVATE */
 png_combine_row(png_structp png_ptr, png_bytep row, int mask)
 {
 #ifdef PNG_USE_LOCAL_ARRAYS
-   PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
 #endif

   png_debug(1,"in png_combine_row_asm\n");
@@ -1005,7 +1005,7 @@ png_do_read_interlace(png_structp png_ptr)
   int pass = png_ptr->pass;
   png_uint_32 transformations = png_ptr->transformations;
 #ifdef PNG_USE_LOCAL_ARRAYS
-   PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
 #endif

   png_debug(1,"in png_do_read_interlace\n");
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,9 +1,9 @@

 /* pngwrite.c - general routines to write a PNG file
 *
- * Last changed in libpng 1.2.15 January 5, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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/pngwutil.c
+++ b/pngwutil.c
@@ -1,9 +1,9 @@

 /* pngwutil.c - utilities to write a PNG file
 *
- * Last changed in libpng 1.2.15 January 5, 2007
+ * Last changed in libpng 1.2.13 November 13, 2006
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2006 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.)
 */
@@ -523,10 +523,9 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
      png_ptr->zlib_window_bits = 15;
   if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_METHOD))
      png_ptr->zlib_method = 8;
-   if (deflateInit2(&png_ptr->zstream, png_ptr->zlib_level,
+   deflateInit2(&png_ptr->zstream, png_ptr->zlib_level,
      png_ptr->zlib_method, png_ptr->zlib_window_bits,
-      png_ptr->zlib_mem_level, png_ptr->zlib_strategy) != Z_OK)
-       png_error(png_ptr, "zlib failed to initialize compressor");
+      png_ptr->zlib_mem_level, png_ptr->zlib_strategy);
   png_ptr->zstream.next_out = png_ptr->zbuf;
   png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
   /* libpng is not interested in zstream.data_type */
--- a/projects/visualc6/README.txt
+++ b/projects/visualc6/README.txt
@@ -31,11 +31,11 @@ To use:

 This project builds the libpng binaries as follows:

-* Win32_DLL_Release\libpng13.dll      DLL build
-* Win32_DLL_Debug\libpng13d.dll       DLL build (debug version)
-* Win32_DLL_ASM_Release\libpng13.dll  DLL build using ASM code
-* Win32_DLL_ASM_Debug\libpng13d.dll   DLL build using ASM (debug version)
-* Win32_DLL_VB\libpng13vb.dll         DLL build for Visual Basic, using stdcall
+* Win32_DLL_Release\libpng10.dll      DLL build
+* Win32_DLL_Debug\libpng10d.dll       DLL build (debug version)
+* Win32_DLL_ASM_Release\libpng10.dll  DLL build using ASM code
+* Win32_DLL_ASM_Debug\libpng10d.dll   DLL build using ASM (debug version)
+* Win32_DLL_VB\libpng10vb.dll         DLL build for Visual Basic, using stdcall
 * Win32_LIB_Release\libpng.lib        static build
 * Win32_LIB_Debug\libpngd.lib         static build (debug version)
 * Win32_LIB_ASM_Release\libpng.lib    static build using ASM code
--- a/projects/visualc6/libpng.dsp
+++ b/projects/visualc6/libpng.dsp
@@ -63,7 +63,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /dll /machine:I386
-# ADD LINK32 zlib1.lib /nologo /dll /machine:I386 /out:"Win32_DLL_Release\libpng13.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_Release"
+# ADD LINK32 zlib1.lib /nologo /dll /machine:I386 /out:"Win32_DLL_Release\libpng10.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_Release"

 !ELSEIF  "$(CFG)" == "libpng - Win32 DLL Debug"

@@ -94,7 +94,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /dll /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 zlib1d.lib /nologo /dll /debug /machine:I386 /out:"Win32_DLL_Debug\libpng13d.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_Debug"
+# ADD LINK32 zlib1d.lib /nologo /dll /debug /machine:I386 /out:"Win32_DLL_Debug\libpng10d.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_Debug"

 !ELSEIF  "$(CFG)" == "libpng - Win32 DLL ASM Release"

@@ -125,7 +125,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /dll /machine:I386
-# ADD LINK32 zlib1.lib /nologo /dll /machine:I386 /out:"Win32_DLL_ASM_Release\libpng13.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Release"
+# ADD LINK32 zlib1.lib /nologo /dll /machine:I386 /out:"Win32_DLL_ASM_Release\libpng10.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Release"

 !ELSEIF  "$(CFG)" == "libpng - Win32 DLL ASM Debug"

@@ -156,7 +156,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /dll /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 zlib1d.lib /nologo /dll /debug /machine:I386 /out:"Win32_DLL_ASM_Debug\libpng13d.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Debug"
+# ADD LINK32 zlib1d.lib /nologo /dll /debug /machine:I386 /out:"Win32_DLL_ASM_Debug\libpng10d.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Debug"

 !ELSEIF  "$(CFG)" == "libpng - Win32 DLL VB"

@@ -187,10 +187,10 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /dll /machine:I386
-# ADD LINK32 zlib1.lib /nologo /dll /machine:I386 /out:"Win32_DLL_VB\libpng13vb.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_Release"
+# ADD LINK32 zlib1.lib /nologo /dll /machine:I386 /out:"Win32_DLL_VB\libpng10vb.dll" /libpath:"..\..\..\zlib\projects\visualc6\Win32_DLL_Release"
 # Begin Special Build Tool
 OutDir=.\Win32_DLL_VB
-TargetName=libpng13vb
+TargetName=libpng10vb
 SOURCE="$(InputPath)"
 PostBuild_Cmds=echo    Deleting $(targetname) import library and export file (Not required for VB projects)	del $(outdir)\$(targetname).lib	del $(outdir)\$(targetname).exp
 # End Special Build Tool
--- a/projects/visualc6/pngtest.dsp
+++ b/projects/visualc6/pngtest.dsp
@@ -58,7 +58,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /machine:I386
-# ADD LINK32 Win32_DLL_Release\libpng13.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_Release\zlib1.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 Win32_DLL_Release\libpng10.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_Release\zlib1.lib /nologo /subsystem:console /machine:I386
 # Begin Special Build Tool
 OutDir=.\Win32_DLL_Release
 SOURCE="$(InputPath)"
@@ -90,7 +90,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 Win32_DLL_Debug\libpng13d.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_Debug\zlib1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 Win32_DLL_Debug\libpng10d.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_Debug\zlib1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
 # Begin Special Build Tool
 OutDir=.\Win32_DLL_Debug
 SOURCE="$(InputPath)"
@@ -122,7 +122,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /machine:I386
-# ADD LINK32 Win32_DLL_ASM_Release\libpng13.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Release\zlib1.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 Win32_DLL_ASM_Release\libpng10.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Release\zlib1.lib /nologo /subsystem:console /machine:I386
 # Begin Special Build Tool
 OutDir=.\Win32_DLL_ASM_Release
 SOURCE="$(InputPath)"
@@ -154,7 +154,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 Win32_DLL_ASM_Debug\libpng13d.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Debug\zlib1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 Win32_DLL_ASM_Debug\libpng10d.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Debug\zlib1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
 # Begin Special Build Tool
 OutDir=.\Win32_DLL_ASM_Debug
 SOURCE="$(InputPath)"
--- a/projects/visualc71/README.txt
+++ b/projects/visualc71/README.txt
@@ -32,11 +32,11 @@ To use:

 This project builds the libpng binaries as follows:

-* Win32_DLL_Release\libpng13.dll      DLL build
-* Win32_DLL_Debug\libpng13d.dll       DLL build (debug version)
-* Win32_DLL_ASM_Release\libpng13.dll  DLL build using ASM code
-* Win32_DLL_ASM_Debug\libpng13d.dll   DLL build using ASM (debug version)
-* Win32_DLL_VB\libpng13vb.dll         DLL build for Visual Basic, using stdcall
+* Win32_DLL_Release\libpng10.dll      DLL build
+* Win32_DLL_Debug\libpng10d.dll       DLL build (debug version)
+* Win32_DLL_ASM_Release\libpng10.dll  DLL build using ASM code
+* Win32_DLL_ASM_Debug\libpng10d.dll   DLL build using ASM (debug version)
+* Win32_DLL_VB\libpng10vb.dll         DLL build for Visual Basic, using stdcall
 * Win32_LIB_Release\libpng.lib        static build
 * Win32_LIB_Debug\libpngd.lib         static build (debug version)
 * Win32_LIB_ASM_Release\libpng.lib    static build using ASM code
--- a/projects/visualc71/libpng.vcproj
+++ b/projects/visualc71/libpng.vcproj
@@ -30,7 +30,7 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				OutputFile="$(OutDir)/libpng13.dll"
+				OutputFile="$(OutDir)/libpng10.dll"
 				LinkIncremental="1"
 				ModuleDefinitionFile="..\..\scripts\pngw32.def"/>
 			<Tool
@@ -78,7 +78,7 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				OutputFile="$(OutDir)/libpng13d.dll"
+				OutputFile="$(OutDir)/libpng10d.dll"
 				ModuleDefinitionFile="..\..\scripts\pngw32.def"
 				GenerateDebugInformation="TRUE"/>
 			<Tool
@@ -126,7 +126,7 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				OutputFile="$(OutDir)/libpng13.dll"
+				OutputFile="$(OutDir)/libpng10.dll"
 				LinkIncremental="1"
 				ModuleDefinitionFile="..\..\scripts\pngw32.def"/>
 			<Tool
@@ -175,7 +175,7 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				OutputFile="$(OutDir)/libpng13d.dll"
+				OutputFile="$(OutDir)/libpng10d.dll"
 				ModuleDefinitionFile="..\..\scripts\pngw32.def"
 				GenerateDebugInformation="TRUE"/>
 			<Tool
@@ -224,7 +224,7 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				OutputFile="$(OutDir)/libpng13vb.dll"
+				OutputFile="$(OutDir)/libpng10vb.dll"
 				LinkIncremental="1"/>
 			<Tool
 				Name="VCMIDLTool"/>
--- a/projects/visualc71/pngtest.vcproj
+++ b/projects/visualc71/pngtest.vcproj
@@ -226,7 +226,7 @@ $(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
 				Name="VCLinkerTool"
 				OutputFile="$(OutDir)/pngtest.exe"
 				LinkIncremental="1"
-				IgnoreDefaultLibraryNames="$(IntDir)\libpng13vb.lib"
+				IgnoreDefaultLibraryNames="$(IntDir)\libpng10vb.lib"
 				SubSystem="1"
 				TargetMachine="1"/>
 			<Tool
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -1,11 +1,8 @@
 project(PNG)

-# Copyright (C) 2007 Glenn Randers-Pehrson
-# For conditions of distribution and use, see copyright notice in png.h
-
 set(PNGLIB_MAJOR 1)
-set(PNGLIB_MINOR 2)
-set(PNGLIB_RELEASE 19)
+set(PNGLIB_MINOR 0)
+set(PNGLIB_RELEASE 23)
 set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
 set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})

@@ -17,8 +14,7 @@ if(NOT WIN32)
     PATHS /usr/lib /usr/local/lib
 )
 if(NOT M_LIBRARY)
-   message(STATUS
-     "math library 'libm' not found - floating point support disabled")
+   message(STATUS "math library 'libm' not found - floating point support disabled")
 endif(NOT M_LIBRARY)
 else(NOT WIN32)
 # not needed on windows
@@ -28,7 +24,6 @@ endif(NOT WIN32)

 # COMMAND LINE OPTIONS
 option(PNG_SHARED "Build shared lib" YES)
-option(PNG_STATIC "Build static lib" YES)
 option(PNG_TESTS  "Build pngtest" YES)
 option(PNG_NO_CONSOLE_IO "FIXME" YES)
 option(PNG_NO_STDIO      "FIXME" YES)
@@ -63,6 +58,11 @@ set(PNG_LIB_NAME ${PNG_LIB_NAME}png${PNGLIB_MAJOR}${PNGLIB_MINOR})
 # to distinguish between debug and release lib
 set(CMAKE_DEBUG_POSTFIX "d")

+# append _static to static lib
+if(NOT PNG_SHARED)
+ set(PNG_LIB_NAME ${PNG_LIB_NAME}_static)
+endif(NOT PNG_SHARED)
+

 # OUR SOURCES
 set(libpng_sources
@@ -87,12 +87,13 @@ set(libpng_sources
 set(pngtest_sources
       pngtest.c
 )
+
+
 # SOME NEEDED DEFINITIONS
 add_definitions(-DZLIB_DLL)

 if(MSVC)
- add_definitions(-DPNG_USE_PNGVCRD -DPNG_NO_MODULEDEF
-   -D_CRT_SECURE_NO_DEPRECATE)
+ add_definitions(-DPNG_USE_PNGVCRD -DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
 set(libpng_sources ${libpng_sources}
         pngvcrd.c
 )
@@ -141,14 +142,11 @@ include_directories(${PNG_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})

 if(PNG_SHARED)
 add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
- target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
+else(PNG_SHARED)
+ add_library(STATIC ${libpng_sources})
 endif(PNG_SHARED)
-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})
-endif(PNG_STATIC)

+target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
 if(PNG_SHARED AND WIN32)
 set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
 endif(PNG_SHARED AND WIN32)
@@ -163,39 +161,24 @@ endif(PNG_TESTS)

 # CREATE PKGCONFIG FILES
 # we use the same files like ./configure, so we have to set its vars
-set(prefix      ${CMAKE_INSTALL_PREFIX})
-set(exec_prefix ${CMAKE_INSTALL_PREFIX})
+set(prefix      ${CMAKE_INSTALL_PREFIX}/bin)
+set(exec_prefix ${CMAKE_INSTALL_PREFIX}/bin)
 set(libdir      ${CMAKE_INSTALL_PREFIX}/lib)
 set(includedir  ${CMAKE_INSTALL_PREFIX}/include)

-configure_file(${PNG_SOURCE_DIR}/scripts/libpng.pc.in
-  ${PNG_BINARY_DIR}/libpng.pc)
-configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
-  ${PNG_BINARY_DIR}/libpng-config)
-configure_file(${PNG_SOURCE_DIR}/scripts/libpng.pc.in
-  ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc)
-configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
-  ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config)
-
-# SET UP LINKS
-set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#    VERSION 0.${PNGLIB_RELEASE}.1.2.19beta2
-     VERSION 0.${PNGLIB_RELEASE}.0
-     SOVERSION 0
-     CLEAN_DIRECT_OUTPUT 1)
-set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
-     OUTPUT_NAME ${PNG_LIB_NAME}
-     CLEAN_DIRECT_OUTPUT 1)
+configure_file(${PNG_SOURCE_DIR}/scripts/libpng.pc.in ${PNG_BINARY_DIR}/libpng.pc)
+configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in ${PNG_BINARY_DIR}/libpng-config)
+configure_file(${PNG_SOURCE_DIR}/scripts/libpng.pc.in ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc)
+configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config)

 # INSTALL
-install_targets(/lib ${PNG_LIB_NAME} ${PNG_LIB_NAME_STATIC})
-install(FILES png.h pngconf.h         DESTINATION include)
-install(FILES png.h pngconf.h         DESTINATION include/${PNGLIB_NAME})
+install_targets(/lib ${PNG_LIB_NAME})
+install(FILES png.h pngconf.h                 DESTINATION include)
+install(FILES png.h pngconf.h                 DESTINATION include/${PNGLIB_NAME})
 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}/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)

 # what's with libpng.txt and all the extra files?
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -8,7 +8,7 @@

 # Modeled after libxml-config.

-version=1.2.19beta2
+version=1.0.23rc1
 prefix=""
 libdir=""
 libs=""
--- a/scripts/libpng-config.in
+++ b/scripts/libpng-config.in
@@ -3,7 +3,7 @@
 # libpng-config
 # provides configuration info for libpng.

-# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2004, 2006 Glenn Randers-Pehrson
 # For conditions of distribution and use, see copyright notice in png.h

 # Modeled after libxml-config.
--- a/scripts/libpng.pc-configure.in
+++ b/scripts/libpng.pc-configure.in
@@ -1,10 +1,10 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
-includedir=@includedir@/libpng12
+includedir=@includedir@/libpng10

 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.2.19beta2
-Libs: -L${libdir} -lpng12
+Version: 1.0.23rc1
+Libs: -L${libdir} -lpng10
 Cflags: -I${includedir} @LIBPNG_NO_MMX@
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -1,10 +1,10 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
-includedir=@includedir@/libpng12
+includedir=@includedir@/libpng10

 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.2.19beta2
-Libs: -L${libdir} -lpng12
+Version: 1.0.23rc1
+Libs: -L${libdir} -lpng10
 Cflags: -I${includedir}
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -6,9 +6,9 @@
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME=libpng12
+LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -16,8 +16,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 CC=cc
@@ -30,7 +30,7 @@ RM_F=/bin/rm -f
 SUN_CC_FLAGS=-fast -xtarget=ultra
 SUN_LD_FLAGS=-fast -xtarget=ultra

-# where make install puts libpng.a, libpng12.so and libpng12/png.h
+# where make install puts libpng.a, libpng10.so and libpng10/png.h
 prefix=/a
 exec_prefix=$(prefix)

@@ -99,7 +99,7 @@ libpng-config:
 	echo R_opts=\"-R$(LIBPATH)\"; \
 	echo ccopts=\"-xtarget=ultra\"; \
 	echo ldopts=\"-xtarget=ultra\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -6,9 +6,9 @@
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME=libpng12
+LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -16,8 +16,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 CC=cc
@@ -30,7 +30,7 @@ RM_F=/bin/rm -f
 SUN_CC_FLAGS=-fast -xtarget=ultra -xarch=v9
 SUN_LD_FLAGS=-fast -xtarget=ultra -xarch=v9

-# where make install puts libpng.a, libpng12.so and libpng12/png.h
+# where make install puts libpng.a, libpng10.so and libpng10/png.h
 prefix=/a
 exec_prefix=$(prefix)

@@ -48,7 +48,7 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
 CFLAGS=-I$(ZLIBINC) $(SUN_CC_FLAGS) \
 	# $(WARNMORE) -g -DPNG_DEBUG=5
-LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm

 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
@@ -99,7 +99,7 @@ libpng-config:
 	echo R_opts=\"-R$(LIBPATH)\"; \
 	echo ccopts=\"-xtarget=ultra -xarch=v9\"; \
 	echo ldopts=\"-xtarget=ultra -xarch=v9\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -18,9 +18,9 @@ RANLIB = ranlib
 RM_F = rm -f
 LN_SF = ln -f -s

-LIBNAME=libpng12
+LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 prefix=/usr/local
@@ -46,7 +46,7 @@ CRELEASE = -O2
 LDRELEASE = -s
 WARNMORE=-Wall
 CFLAGS = -I$(ZLIBINC) $(WARNMORE) $(CRELEASE)
-LDFLAGS = -L. -L$(ZLIBLIB) -lpng12 -lz -lm $(LDRELEASE)
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng10 -lz -lm $(LDRELEASE)

 # File extensions
 O=.o
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -6,9 +6,9 @@
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME=libpng12
+LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -16,8 +16,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 CC=gcc
@@ -46,7 +46,7 @@ CFLAGS=-I$(ZLIBINC) -Wall -O1 -funroll-loops \
 # LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz
 LDFLAGS=-L. -Wl,-soname=$(LIBSOMAJ) -L$(ZLIBLIB) -lz

-# where make install puts libpng.a, libpng12.so*, and png.h
+# where make install puts libpng.a, libpng10.so*, and png.h
 prefix=/usr/local
 exec_prefix=$(prefix)
 INCPATH=$(prefix)/include
@@ -90,7 +90,7 @@ libpng-config:
 	( cat scripts/libpng-config-head.in; \
 	echo prefix=\"$(prefix)\"; \
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
-	echo libs=\"-lpng12 -lz \"; \
+	echo libs=\"-lpng10 -lz \"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

@@ -110,7 +110,7 @@ $(OLDSOVER): $(OBJSDLL)
 	$(OLDSOVER) $(OBJSDLL) $(LDFLAGS)

 pngtest: pngtest.o $(LIBSO)
-	$(CC) -L$(ZLIBLIB) -L. -lz -lpng12 -o pngtest pngtest.o
+	$(CC) -L$(ZLIBLIB) -L. -lz -lpng10 -o pngtest pngtest.o

 test: pngtest
 	./pngtest
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -77,10 +77,10 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
        -Wall -O3 $(ALIGN) -funroll-loops \
 	-fomit-frame-pointer) # $(WARNMORE) -g -DPNG_DEBUG=5

-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-CYGDLL = 12
-PNGMIN = 1.2.19beta2
+CYGDLL = 10
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=cygpng$(CYGDLL).dll
@@ -268,16 +268,16 @@ test-dd:
 	echo
 	echo Testing installed dynamic shared library in $(DL).
 	$(CC) -I$(DI) $(CFLAGS) \
-	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
+	   `$(BINPATH)/libpng10-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
-	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
+	   -o pngtestd `$(BINPATH)/libpng10-config --ldflags`
 	./pngtestd pngtest.png

 test-installed:
 	$(CC) $(CFLAGS) \
-	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
+	   `$(BINPATH)/libpng10-config --cflags` pngtest.c \
 	   -L$(ZLIBLIB) \
-	   -o pngtesti$(EXE) `$(BINPATH)/libpng12-config --ldflags`
+	   -o pngtesti$(EXE) `$(BINPATH)/libpng10-config --ldflags`
 	./pngtesti$(EXE) pngtest.png

 clean:
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -6,7 +6,7 @@
 #  Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

-# where "make install" puts libpng.a, libpng12.dylib, png.h and pngconf.h
+# where "make install" puts libpng.a, libpng10.dylib, png.h and pngconf.h
 prefix=/usr/local
 exec_prefix=$(prefix)

@@ -17,9 +17,9 @@ ZLIBLIB=../zlib
 ZLIBINC=../zlib

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -27,8 +27,8 @@ LIBSO=$(LIBNAME).dylib
 LIBSOMAJ=$(LIBNAME).$(PNGMAJ).dylib
 LIBSOVER=$(LIBNAME).$(PNGVER).dylib
 OLDSO=libpng.dylib
-OLDSOMAJ=libpng.3.dylib
-OLDSOVER=libpng.3.$(PNGMIN).dylib
+OLDSOMAJ=libpng.2.dylib
+OLDSOVER=libpng.2.$(PNGMIN).dylib

 # Utilities:
 CC=cc
@@ -39,7 +39,7 @@ RANLIB=ranlib
 RM_F=/bin/rm -f

 CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng10 -lz

 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
@@ -87,7 +87,7 @@ libpng-config:
 	echo prefix=\"$(prefix)\"; \
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz\"; \
+	echo libs=\"-lpng10 -lz\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -5,17 +5,17 @@

 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
+LIBNAME = libpng10

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -76,7 +76,7 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo ccopts=\"-std\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -1,4 +1,4 @@
-# makefile for libpng.a and libpng12.so on Linux ELF with gcc
+# makefile for libpng.a and libpng10.so on Linux ELF with gcc
 # Copyright (C) 1998, 1999, 2002, 2006 Greg Roelofs and Glenn Randers-Pehrson
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h
@@ -6,13 +6,13 @@
 # Modified for Debian by Junichi Uekawa and Josselin Mouette
 # Major modifications are:
 #    * link libpng explicitly with libz and libm
-#    * $(OLDSO).3 is a symlink rather than a different library
+#    * $(OLDSO).2 is a symlink rather than a different library
 #    * versioned symbols

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -20,8 +20,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -31,8 +31,8 @@ LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f

-# where "make install" puts libpng12.a, libpng12.so*,
-# libpng12/png.h and libpng12/pngconf.h
+# where "make install" puts libpng10.a, libpng10.so*,
+# libpng10/png.h and libpng10/pngconf.h
 # Prefix must be a full pathname.
 prefix=/usr/local
 exec_prefix=$(prefix)
@@ -56,7 +56,7 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 CFLAGS=-Wall -D_REENTRANT -O2 \
 	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5

-LDFLAGS=-L. -lpng12
+LDFLAGS=-L. -lpng10
 LDFLAGS_A=libpng.a -lz -lm
 LIBADDFLAGS=-lz -lm

@@ -103,7 +103,7 @@ libpng.pc:

 libpng.syms: png.h pngconf.h
 	$(CC) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
-	awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG12_%s {global:\n",PNGMAJ)}\
+	awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG10_%s {global:\n",PNGMAJ)}\
 	{ for (i=1;i+2<=NF;++i)\
 		if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\
 			print $$(i+1) ";";\
@@ -120,8 +120,8 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo L_opts=\"\"; \
 	echo R_opts=\"\"; \
-	echo libs=\"-lpng12\"; \
-	echo all_libs=\"-lpng12 $(LIBADDFLAGS)\"; \
+	echo libs=\"-lpng10\"; \
+	echo all_libs=\"-lpng10 $(LIBADDFLAGS)\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.freebsd
+++ b/scripts/makefile.freebsd
@@ -1,5 +1,5 @@
 # makefile for libpng under FreeBSD
-# Copyright (C) 2002, 2007 Glenn Randers-Pehrson and Andrey A. Chernov
+# Copyright (C) 2002 Glenn Randers-Pehrson and Andrey A. Chernov
 # For conditions of distribution and use, see copyright notice in png.h

 PREFIX?=        /usr/local
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -1,4 +1,4 @@
-# makefile for libpng.a and libpng12.so on Linux ELF with gcc using MMX
+# makefile for libpng.a and libpng10.so on Linux ELF with gcc using MMX
 # assembler code
 # Copyright 2002, 2006 Greg Roelofs and Glenn Randers-Pehrson
 # Copyright 1998-2001 Greg Roelofs
@@ -14,9 +14,9 @@
 #        the background!  Context switches between MMX and FPU are expensive.

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -24,8 +24,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 CC = gcc
@@ -36,8 +36,8 @@ MKDIR_P = mkdir -p
 RANLIB = ranlib
 RM_F = /bin/rm -f

-# where "make install" puts libpng12.a, libpng12.so*,
-# libpng12/png.h and libpng12/pngconf.h
+# where "make install" puts libpng10.a, libpng10.so*,
+# libpng10/png.h and libpng10/pngconf.h
 # Prefix must be a full pathname.
 prefix=/usr/local
 exec_prefix=$(prefix)
@@ -72,7 +72,7 @@ CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall \
 #	-m486 -malign-double -ffast-math \
 #	$(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer 

-LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng10 -lz -lm
 LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm


@@ -123,7 +123,7 @@ libpng-config:
 	echo cppflags=\"-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
 	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -16,9 +16,9 @@ ZLIBINC=/opt/zlib/include
 #   SHAREDLIB=libz.sl

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -26,8 +26,8 @@ LIBSO=$(LIBNAME).sl
 LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).sl.$(PNGVER)
 OLDSO=libpng.sl
-OLDSOMAJ=libpng.sl.3
-OLDSOVER=libpng.sl.3.$(PNGMIN)
+OLDSOMAJ=libpng.sl.2
+OLDSOVER=libpng.sl.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -45,7 +45,7 @@ CCFLAGS=-I$(ZLIBINC) -O -Ae -Wl,+vnocompatwarnings +DD64 \

 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm

-# where make install puts libpng.a, libpng12.sl, and png.h
+# where make install puts libpng.a, libpng10.sl, and png.h
 prefix=/opt/libpng
 exec_prefix=$(prefix)
 INCPATH=$(prefix)/include
@@ -94,7 +94,7 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo ccopts=\"-Ae +DA1.1 +DS2.0\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -6,9 +6,9 @@
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -16,8 +16,8 @@ LIBSO=$(LIBNAME).sl
 LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).sl.$(PNGVER)
 OLDSO=libpng.sl
-OLDSOMAJ=libpng.sl.3
-OLDSOVER=libpng.sl.3.$(PNGMIN)
+OLDSOMAJ=libpng.sl.2
+OLDSOVER=libpng.sl.2.$(PNGMIN)

 # Utilities:
 CC=gcc
@@ -55,8 +55,8 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \

 CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
 	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
-#LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm
+#LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng10 -lz -lm
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng10 -lz -lm

 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
@@ -102,7 +102,7 @@ libpng-config:
 	( cat scripts/libpng-config-head.in; \
 	echo prefix=\"$(prefix)\"; \
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -16,9 +16,9 @@ ZLIBINC=/opt/zlib/include
 #   SHAREDLIB=libz.sl

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -26,8 +26,8 @@ LIBSO=$(LIBNAME).sl
 LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).sl.$(PNGVER)
 OLDSO=libpng.sl
-OLDSOMAJ=libpng.sl.3
-OLDSOVER=libpng.sl.3.$(PNGMIN)
+OLDSOMAJ=libpng.sl.2
+OLDSOVER=libpng.sl.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -37,7 +37,7 @@ LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f

-# where make install puts libpng.a, libpng12.sl, and png.h
+# where make install puts libpng.a, libpng10.sl, and png.h
 prefix=/opt/libpng
 exec_prefix=$(prefix)
 INCPATH=$(prefix)/include
@@ -91,7 +91,7 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo ccopts=\"-Ae +DA1.1 +DS2.0\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -1,12 +1,12 @@
-# makefile for libpng.a and libpng12.so on Linux ELF with gcc
+# makefile for libpng.a and libpng10.so on Linux ELF with gcc
 # Copyright (C) 1998, 1999, 2002, 2006 Greg Roelofs and Glenn Randers-Pehrson
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -14,8 +14,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -25,8 +25,8 @@ LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f

-# where "make install" puts libpng12.a, libpng12.so*,
-# libpng12/png.h and libpng12/pngconf.h
+# where "make install" puts libpng10.a, libpng10.so*,
+# libpng10/png.h and libpng10/pngconf.h
 # Prefix must be a full pathname.
 prefix=/usr/local
 exec_prefix=$(prefix)
@@ -50,7 +50,7 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
 	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5

-LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng10 -lz -lm
 LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm

 INCPATH=$(prefix)/include
@@ -99,7 +99,7 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
 	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -73,10 +73,10 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
        -Wall -O3 $(ALIGN) -funroll-loops \
 	-fomit-frame-pointer) # $(WARNMORE) -g -DPNG_DEBUG=5

-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-MINGDLL = 12
-PNGMIN = 1.2.19beta2
+MINGDLL = 10
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 SHAREDLIB=libpng$(MINGDLL).dll
@@ -264,16 +264,16 @@ test-dd:
 	echo
 	echo Testing installed dynamic shared library in $(DL).
 	$(CC) -I$(DI) $(CFLAGS) \
-	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
+	   `$(BINPATH)/libpng10-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
-	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
+	   -o pngtestd `$(BINPATH)/libpng10-config --ldflags`
 	./pngtestd pngtest.png

 test-installed:
 	$(CC) $(CFLAGS) \
-	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
+	   `$(BINPATH)/libpng10-config --cflags` pngtest.c \
 	   -L$(ZLIBLIB) \
-	   -o pngtesti$(EXE) `$(BINPATH)/libpng12-config --ldflags`
+	   -o pngtesti$(EXE) `$(BINPATH)/libpng10-config --ldflags`
 	./pngtesti$(EXE) pngtest.png

 clean:
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -2,7 +2,6 @@
 # make obj && make depend && make && make test
 # make includes && make install
 # Copyright (C) 2002 Patrick R.L. Welche
-# Copyright (C) 2007 Glenn Randers-Pehrson
 # For conditions of distribution and use, see copyright notice in png.h

 # You should also run makefile.netbsd
@@ -10,11 +9,11 @@
 LOCALBASE?=/usr/local
 LIBDIR=	${LOCALBASE}/lib
 MANDIR= ${LOCALBASE}/man
-INCSDIR=${LOCALBASE}/include/libpng12
+INCSDIR=${LOCALBASE}/include/libpng10

 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.19beta2
+SHLIB_MINOR=	1.0.23rc1
 SRCS=	pnggccrd.c 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
@@ -2,7 +2,6 @@
 # make obj && make depend && make && make test
 # make includes && make install
 # Copyright (C) 2002 Patrick R.L. Welche
-# Copyright (C) 2007 Glenn Randers-Pehrson
 # For conditions of distribution and use, see copyright notice in png.h

 # You should also run makefile.ne0bsd
@@ -14,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng

 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.2.19beta2
+SHLIB_MINOR=	1.0.23rc1
 SRCS=	pnggccrd.c 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.nommx
+++ b/scripts/makefile.nommx
@@ -1,248 +0,0 @@
-# makefile for libpng.a and libpng12.so on Linux ELF with gcc
-# Copyright (C) 1998, 1999, 2002, 2006, 2007 Greg Roelofs and
-# Glenn Randers-Pehrson
-# Copyright (C) 1996, 1997 Andreas Dilger
-# For conditions of distribution and use, see copyright notice in png.h
-
-# Library name:
-LIBNAME = libpng12
-PNGMAJ = 0
-PNGMIN = 1.2.19beta2
-PNGVER = $(PNGMAJ).$(PNGMIN)
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOVER=$(LIBNAME).so.$(PNGVER)
-OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
-
-# Utilities:
-AR_RC=ar rc
-CC=gcc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-RM_F=/bin/rm -f
-
-# where "make install" puts libpng12.a, libpng12.so*,
-# libpng12/png.h and libpng12/pngconf.h
-# Prefix must be a full pathname.
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located.
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-ALIGN=
-# for i386:
-#ALIGN=-malign-loops=2 -malign-functions=2
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-	-Wmissing-declarations -Wtraditional -Wcast-align \
-	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-
-# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-
-CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
-	-DPNG_NO_MMX_CODE \
-	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
-
-LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
-LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location.  Example:
-#
-#    make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
-	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
-	pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES:      .c .o .pic.o
-
-.c.pic.o:
-	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
-
-libpng.a: $(OBJS)
-	$(AR_RC) $@ $(OBJS)
-	$(RANLIB) $@
-
-libpng.pc:
-	cat scripts/libpng.pc.in | sed -e s!@PREFIX@!$(prefix)! \
-	| sed -e "s!Cflags: !Cflags: -DPNG_NO_MMX_CODE !"> libpng.pc
-
-libpng-config:
-	( cat scripts/libpng-config-head.in; \
-	echo prefix=\"$(prefix)\"; \
-	echo I_opts=\"-I$(INCPATH)/$(LIBNAME) -DPNG_NO_MMX_CODE\"; \
-	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
-	cat scripts/libpng-config-body.in ) > libpng-config
-	chmod +x libpng-config
-
-$(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)
-
-pngtest: pngtest.o $(LIBSO)
-	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-pngtest-static: pngtest.o libpng.a
-	$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
-
-test: pngtest pngtest-static
-	@echo ""
-	@echo "   Running pngtest dynamically linked with $(LIBSO):"
-	@echo ""
-	./pngtest
-	@echo ""
-	@echo "   Running pngtest statically linked with libpng.a:"
-	@echo ""
-	./pngtest-static
-
-install-headers: png.h pngconf.h
-	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
-	cp png.h pngconf.h $(DI)/$(LIBNAME)
-	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
-	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h
-	-@$(RM_F) $(DI)/libpng
-	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
-	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	cp libpng.a $(DL)/$(LIBNAME).a
-	chmod 644 $(DL)/$(LIBNAME).a
-	-@$(RM_F) $(DL)/libpng.a
-	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOVER) libpng.pc \
-	$(OLDSOVER)
-	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
-	-@$(RM_F) $(DL)/$(LIBSOMAJ)
-	-@$(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)
-	(cd $(DL); \
-	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
-	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
-	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
-	$(LN_SF) $(LIBSOMAJ) $(LIBSO))
-	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
-	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
-	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
-	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
-	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-	-@$(RM_F) $(DM)/man3/libpng.3
-	-@$(RM_F) $(DM)/man3/libpngpf.3
-	cp libpng.3 $(DM)/man3
-	cp libpngpf.3 $(DM)/man3
-	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-	-@$(RM_F) $(DM)/man5/png.5
-	cp png.5 $(DM)/man5
-
-install-config: libpng-config
-	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-	-@$(RM_F) $(DB)/libpng-config
-	-@$(RM_F) $(DB)/$(LIBNAME)-config
-	cp libpng-config $(DB)/$(LIBNAME)-config
-	chmod 755 $(DB)/$(LIBNAME)-config
-	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location.  Use test-dd to test it
-# before then.
-
-test-dd:
-	echo
-	echo Testing installed dynamic shared library in $(DL).
-	$(CC) -I$(DI) -I$(ZLIBINC) \
-	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-	   -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
-	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
-	./pngtestd pngtest.png
-
-test-installed:
-	$(CC) -I$(ZLIBINC) \
-	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-	   -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
-	./pngtesti pngtest.png
-
-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
-writelock:
-	chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h
-pngerror.o pngerror.pic.o: png.h pngconf.h
-pngrio.o pngrio.pic.o: png.h pngconf.h
-pngwio.o pngwio.pic.o: png.h pngconf.h
-pngmem.o pngmem.pic.o: png.h pngconf.h
-pngset.o pngset.pic.o: png.h pngconf.h
-pngget.o pngget.pic.o: png.h pngconf.h
-pngread.o pngread.pic.o: png.h pngconf.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h
-pngpread.o pngpread.pic.o: png.h pngconf.h
-
-pngtest.o: png.h pngconf.h
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -1,6 +1,5 @@
 # makefile for libpng
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-# Copyright (C) 2007 Glenn Randers-Pehrson
 # For conditions of distribution and use, see copyright notice in png.h

 PREFIX?= /usr/local
@@ -8,7 +7,7 @@ LIBDIR=	${PREFIX}/lib
 MANDIR= ${PREFIX}/man/cat

 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.19beta2
+SHLIB_MINOR=	1.0.23rc1

 LIB=	png
 SRCS=	png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -7,9 +7,9 @@
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -17,8 +17,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 CC=cc
@@ -39,7 +39,7 @@ ZLIBLIB=../zlib
 ZLIBINC=../zlib

 CFLAGS= -dy -belf -I$(ZLIBINC) -O3
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng10 -lz -lm

 INCPATH=$(prefix)/include/libpng
 LIBPATH=$(exec_prefix)/lib
@@ -87,7 +87,7 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo ccopts=\"-belf\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -1,12 +1,12 @@
-# makefile for libpng.a and libpng12.so, SGI IRIX with 'cc'
+# makefile for libpng.a and libpng10.so, SGI IRIX with 'cc'
 # Copyright (C) 2001-2002, 2006 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME=libpng12
+LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -14,8 +14,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -25,7 +25,7 @@ LN_SF=ln -sf
 RANLIB=echo
 RM_F=/bin/rm -f

-# Where make install puts libpng.a, libpng12.so, and libpng12/png.h
+# Where make install puts libpng.a, libpng10.so, and libpng10/png.h
 # Prefix must be a full pathname.

 prefix=/usr/local
@@ -96,7 +96,7 @@ libpng-config:
 	echo ldopts=\"$(ABI)\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
 	echo libdir=\"$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -1,12 +1,12 @@
-# makefile for libpng.a and libpng12.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002, 2006, 2007 Glenn Randers-Pehrson
+# makefile for libpng.a and libpng10.so, SGI IRIX with 'cc'
+# Copyright (C) 2001-2002, 2006 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME=libpng12
+LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -14,8 +14,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -25,7 +25,7 @@ LN_SF=ln -sf
 RANLIB=echo
 RM_F=/bin/rm -f

-# Where make install puts libpng.a, libpng12.so, and libpng12/png.h
+# Where make install puts libpng.a, libpng10.so, and libpng10/png.h
 # Prefix must be a full pathname.

 prefix=/usr/local
@@ -48,7 +48,7 @@ WARNMORE=-fullwarn
 #CFLAGS= $(ABI) -I$(ZLIBINC) -O $(WARNMORE) -KPIC -DPNG_USE_PNGGCCRD # -g -DPNG_DEBUG=5
 CFLAGS=$(ABI) -I$(ZLIBINC) -O $(WARNMORE) -DPNG_USE_PNGGCCRD \
  -DPNG_NO_MMX_CODE
-LDFLAGS_A=$(ABI) -L. -L$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS_A=$(ABI) -L. -L$(ZLIBLIB) -lpng10 -lz -lm
 LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
 LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
  -set_version sgi$(PNGMAJ).0
@@ -101,7 +101,7 @@ libpng-config:
 	echo ldopts=\"$(ABI)\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
 	echo libdir=\"$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -8,17 +8,17 @@

 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)
-LIBNAME = libpng12
+LIBNAME = libpng10

 # Shared library names:
 LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 # gcc 2.95 doesn't work.
@@ -49,7 +49,7 @@ ZLIBINC=/usr/include
 	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
 #CFLAGS=-I$(ZLIBINC) -Wall -O3 $(WARNMORE) -g -DPNG_DEBUG=5
 CFLAGS=-I$(ZLIBINC) -O3
-LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm

 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
@@ -97,7 +97,7 @@ libpng-config:
 	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
 	echo R_opts=\"-R$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -1,14 +1,14 @@
 # makefile for libpng on Solaris 2.x with gcc
-# Copyright (C) 2004, 2006, 2007 Glenn Randers-Pehrson
+# Copyright (C) 2004, 2006 Glenn Randers-Pehrson
 # Contributed by William L. Sebok, based on makefile.linux
 # Copyright (C) 1998 Greg Roelofs
 # Copyright (C) 1996, 1997 Andreas Dilger
 # For conditions of distribution and use, see copyright notice in png.h

 # Library name:
-LIBNAME = libpng12
+LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.2.19beta2
+PNGMIN = 1.0.23rc1
 PNGVER = $(PNGMAJ).$(PNGMIN)

 # Shared library names:
@@ -16,8 +16,8 @@ LIBSO=$(LIBNAME).so
 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 LIBSOVER=$(LIBNAME).so.$(PNGVER)
 OLDSO=libpng.so
-OLDSOMAJ=libpng.so.3
-OLDSOVER=libpng.so.3.$(PNGMIN)
+OLDSOMAJ=libpng.so.2
+OLDSOVER=libpng.so.2.$(PNGMIN)

 # Utilities:
 AR_RC=ar rc
@@ -27,7 +27,7 @@ LN_SF=ln -f -s
 RANLIB=echo
 RM_F=/bin/rm -f

-# Where make install puts libpng.a, libpng12.so*, and png.h
+# Where make install puts libpng.a, libpng10.so*, and png.h
 prefix=/usr/local
 exec_prefix=$(prefix)

@@ -45,7 +45,7 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
 CFLAGS=-I$(ZLIBINC) -Wall -O \
 	# $(WARNMORE) -g -DPNG_DEBUG=5
-LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm

 INCPATH=$(prefix)/include
 LIBPATH=$(exec_prefix)/lib
@@ -94,7 +94,7 @@ libpng-config:
 	echo cppflags=\"-DPNG_USE_PNGGCCRD -DPNG_NO_MMX_CODE\"; \
 	echo L_opts=\"-L$(LIBPATH)\"; \
 	echo R_opts=\"-R$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
+	echo libs=\"-lpng10 -lz -lm\"; \
 	cat scripts/libpng-config-body.in ) > libpng-config
 	chmod +x libpng-config

--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------

-; Version 1.2.19beta2
+; Version 1.0.23rc1

 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
@@ -184,44 +184,6 @@ EXPORTS
  png_convert_to_rfc1123
  png_set_invalid

-; Added at version 1.2.0:
-  png_mmx_support
-  png_permit_empty_plte
-  png_permit_mng_features
-  png_get_mmx_flagmask
-  png_get_asm_flagmask
-  png_get_asm_flags
-  png_get_mmx_bitdepth_threshold
-  png_get_mmx_rowbytes_threshold
-  png_set_asm_flags
-  png_init_mmx_flags
-
-; Added at version 1.2.2:
-  png_handle_as_unknown
-
-; Added at version 1.2.2 and deleted from 1.2.3:
-; png_zalloc
-; png_zfree
-
-; Added at version 1.2.4
-  png_malloc_warn
-
-; Added at version 1.2.6
-  png_set_user_limits
-  png_get_user_height_max
-  png_get_user_width_max
-; Added at version 1.2.7
-  png_set_add_alpha
-
-; Added at version 1.2.9
-  png_get_uint_32
-  png_save_uint_32
-  png_get_uint_16
-  png_save_uint_16
-  png_get_int_32
-  png_save_int_32
-  png_get_uint_31
-  png_set_expand_gray_1_2_4_to_8

 ; These are not present when libpng is compiled with PNG_NO_GLOBAL_ARRAYS
  png_libpng_ver
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY

 EXPORTS
-;Version 1.2.19beta2
+;Version 1.0.23rc1
  png_build_grayscale_palette  @1
  png_check_sig        @2
  png_chunk_error      @3
@@ -191,46 +191,3 @@ EXPORTS
  png_write_init_3    @176
  png_info_init_3 @177
  png_destroy_struct  @178
-; Added at version 1.2.0
-; For use with PNG_USER_MEM_SUPPORTED
-  png_destroy_struct_2  @179
-  png_create_read_struct_2 @180
-  png_create_write_struct_2 @181
-  png_malloc_default @182
-  png_free_default @183
-; MNG features
-  png_permit_mng_features  @184
-; MMX support
-  png_mmx_support  @185
-; png_get_mmx_flagmask  @186
-  png_get_asm_flagmask  @187
-  png_get_asm_flags  @188
-; png_get_mmx_bitdepth_threshold  @189
-; png_get_mmx_rowbytes_threshold  @190
-  png_set_asm_flags  @191
-; png_init_mmx_flags  @192
-; Strip error numbers
-  png_set_strip_error_numbers @193
-; Added at version 1.2.2
-  png_handle_as_unknown @194
-; Added at version 1.2.2 and deleted from 1.2.3
-; png_zalloc @195
-; png_zfree @196
-; Added at version 1.2.4
-  png_malloc_warn @195
-; Added at version 1.2.6
-  png_malloc_warn @195
-  png_get_user_height_max @196
-  png_get_user_width_max @197
-  png_set_user_limits @198
-; Added at version 1.2.7
-  png_set_add_alpha @199
-; Added at version 1.2.9
-  png_get_uint_32 @200
-  png_save_uint_32 @201
-  png_get_uint_16 @202
-  png_save_uint_16 @203
-  png_get_int_32 @204
-  png_save_int_32 @205
-  png_get_uint_31 @206
-  png_set_expand_gray_1_2_4_to_8  @207
Author	SHA1	Message	Date
Glenn Randers-Pehrson	e696c7205a	[libpng10] Imported from libpng-1.0.23rc1.tar	2011-09-03 12:23:49 -05:00
Glenn Randers-Pehrson	1ff473f3fd	[libpng10] Imported from libpng-1.0.22.tar	2011-09-03 12:23:46 -05:00
Glenn Randers-Pehrson	b88935a8b2	[libpng10] Imported from libpng-1.0.22rc1.tar	2011-09-03 12:23:43 -05:00
Glenn Randers-Pehrson	64b481e714	[libpng10] Imported from libpng-1.0.21.tar	2011-09-03 12:23:41 -05:00
Glenn Randers-Pehrson	0f5e1e5a39	[libpng10] Imported from libpng-1.0.21rc2.tar	2011-09-03 12:23:38 -05:00
Glenn Randers-Pehrson	6fbb54d253	[libpng10] Imported from libpng-1.0.21rc1.tar	2011-09-03 12:23:36 -05:00
Glenn Randers-Pehrson	fba872492b	[libpng10] Imported from libpng-1.0.20.tar	2011-09-03 12:23:33 -05:00
Glenn Randers-Pehrson	82282113b9	[libpng10] Imported from libpng-1.0.19.tar	2011-09-03 12:23:31 -05:00
Glenn Randers-Pehrson	a095d92224	[libpng10] Imported from libpng-1.0.19rc5.tar	2011-09-03 12:23:28 -05:00
Glenn Randers-Pehrson	ff518067c3	[libpng10] Imported from libpng-1.0.19rc2.tar	2011-09-03 12:23:26 -05:00
Glenn Randers-Pehrson	db576fa76b	[libpng10] Imported from libpng-1.0.19rc1.tar	2011-09-03 12:23:23 -05:00
Glenn Randers-Pehrson	b6c4193528	[libpng10] Imported from libpng-1.0.18.tar	2011-09-03 12:23:20 -05:00
Glenn Randers-Pehrson	df8fc6680e	[libpng10] Imported from libpng-1.0.17.tar	2011-09-03 12:23:18 -05:00
Glenn Randers-Pehrson	f47b4b1bf7	[libpng10] Imported from libpng-1.0.16.tar	2011-09-03 12:23:16 -05:00
Glenn Randers-Pehrson	4fc3118b59	[libpng10] Imported from libpng-1.0.15.tar	2011-09-03 12:23:14 -05:00
Glenn Randers-Pehrson	3bdb7fed6e	[libpng10] Imported from libpng-1.0.15rc3.tar	2011-09-03 12:23:11 -05:00
Glenn Randers-Pehrson	0e928a62e9	[libpng10] Imported from libpng-1.0.15rc2.tar	2011-09-03 12:23:09 -05:00
Glenn Randers-Pehrson	88f07c8451	[libpng10] Imported from libpng-1.0.15rc1.tar	2011-09-03 12:23:07 -05:00
Glenn Randers-Pehrson	787081f75b	[libpng10] Imported from libpng-1.0.14.tar	2011-09-03 12:23:05 -05:00
Glenn Randers-Pehrson	80b4f15ae3	[libpng10] Imported from libpng-1.0.13.tar	2011-09-03 12:23:02 -05:00