Imported from libpng-1.2.7beta1.tar

2004-08-25 22:00:45 -05:00 · 2004-08-25 22:00:45 -05:00 · a4981d4ded
commit a4981d4ded
parent 37f116a900
72 changed files with 490 additions and 25673 deletions
--- a/117
+++ b/117
@ -1,114 +1,19 @@
-Libpng 1.2.6 - August 15, 2004
+Libpng 1.2.7beta1 - August 26, 2004
-This is a public release of libpng, intended for use in production codes.
+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.
-Changes since the last public release (1.2.5):
+Changes since the last public release (1.2.6):
-  Commented out warning about uninitialized mmx_support in pnggccrd.c.
+version 1.2.7beta1 [August 26, 2004]
  Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
  Relocated two more misplaced PNGAPI lines in pngtest.c
  Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
    introduced in version 1.0.2.
  Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
  Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
  Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
  Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
  Added "#!/bin/sh" at the top of configure, for recognition of the
    'x' flag under Cygwin (Cosmin).
  Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
  Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
  Fixed the special memory handler for Borland C under DOS, in pngmem.c
    (Cosmin).
  Removed some spurious assignments in pngrutil.c (Cosmin).
  Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
    on 16-bit platforms (Cosmin).
  Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
  Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
    in png_handle_sRGB() (Cosmin).
  Added compression_type to png_struct, and optimized the window size
    inside the deflate stream (Cosmin).
  Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
  Fixed handling of unknown chunks that come after IDAT (Cosmin).
  Allowed png_error() and png_warning() to work even if png_ptr == NULL
    (Cosmin).
  Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
    (Cosmin).
  Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
  Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
    values in png.c (Simon-Pierre, Cosmin).
  Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
  Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
    (Simon-Pierre).
  Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
    of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
  Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
  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).
  Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
    projects/cbuilder5/ (Cosmin).
  Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
    and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
  Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
  Updated contrib/visupng/VisualPng.dsp (Cosmin).
  Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
  Added a separate distribution with "configure" and supporting files (Junichi).
  Added user ability to change png_size_t via a PNG_SIZE_T macro.
  Added png_sizeof() and png_convert_size() functions.
  Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
  Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
    which would indicate an overflow.
  Changed sPLT failure action from png_error to png_warning and abandon chunk.
  Changed sCAL and iCCP failures from png_error to png_warning and abandon.
  Added png_get_uint_31(png_ptr, buf) function.
  Added PNG_UINT_32_MAX macro.
  Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
  Made png_zalloc() issue a png_warning and return NULL on potential
    overflow.
  Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
  Revised Borland portion of png_malloc() to return NULL or issue
    png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
  Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
    sequential read support.
  Added some "#if PNG_WRITE_SUPPORTED" blocks.
  #ifdef'ed out some redundancy in png_malloc_default().
  Use png_malloc instead of png_zalloc to allocate the pallete.
  Rearranged order of processing of color types in png_handle_tRNS().
  Added PNG_ROWBYTES macro to calculate rowbytes without integer overflow.
  Updated makefile.darwin and removed makefile.macosx from scripts directory.
  Imposed default one million column, one-million row limits on the image
    dimensions, and added png_set_user_limits() function and
    PNG_SET_USER_LIMITS_SUPPORTED macro to override them.
  Fixed wrong cast of returns from png_get_user_width|height_max().
  Fixed buffer overflow vulnerability in png_handle_tRNS()
  Fixed integer arithmetic overflow vulnerability in png_read_png().
  Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
    duplicate chunk types to go undetected.
  Changed some "keep the compiler happy" from empty statements to returns,
 Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution
  Revised makefile.darwin and makefile.solaris.  Removed makefile.macosx.
  Revised pngtest's png_debug_malloc() to use png_malloc() instead of
     png_malloc_default() which is not supposed to be exported.
  Fixed old bug in RGB to Gray transformation.
  Fixed problem with 64-bit compilers by casting arguments to abs()
    to png_int_32.
  Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
  Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
  Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
  Added code to update the row_info->colortype in png_do_read_filler() (MSB).
  Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
    trouble with some 64-bit compilers.  Created PNG_OUT_OF_RANGE() macro.
  Revised documentation of png_set_keep_unknown_chunks().
  Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
  Moved  "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
  Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
  Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
  Removed unused pngasmrd.h file.
  Removed unused pngasmrd.h file.
  Removed references to uu.net for archived files.  Added references to
    PNG Spec (second edition) and the PNG ISO/IEC Standard.
  Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
  Fixed bug with "optimized window size" in the IDAT datastream.
 Send comments/corrections/commendations to
 png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net
--- a/58
+++ b/58
@ -4,6 +4,7 @@ CHANGES - changes for libpng
 version 0.2
  added reader into png.h
  fixed small problems in stub file
 version 0.3
  added pull reader
  split up pngwrite.c to several files
@ -14,6 +15,7 @@ version 0.3
  interfaced with zlib 0.5
  added K&R support
  added check for 64 KB blocks for 16 bit machines
 version 0.4
  cleaned up code and commented code
  simplified time handling into png_time
@ -24,23 +26,28 @@ version 0.4
  interfaced with zlib 0.71
  cleaned up zTXt reader and writer (using zlib's Reset functions)
  split transformations into pngrtran.c and pngwtran.c
 version 0.5
  interfaced with zlib 0.8
  fixed many reading and writing bugs
  saved using 3 spaces instead of tabs
 version 0.6
  added png_large_malloc() and png_large_free()
  added png_size_t
  cleaned up some compiler warnings
  added png_start_read_image()
 version 0.7
  cleaned up lots of bugs
  finished dithering and other stuff
  added test program
  changed name from pnglib to libpng
 version 0.71 [June, 1995]
  changed pngtest.png for zlib 0.93
  fixed error in libpng.txt and example.c
 version 0.8
  cleaned up some bugs
  added png_set_filler()
@ -57,27 +64,34 @@ version 0.8
  enabled png_set_shift to work with paletted images on read
  added png_read_update_info() - updates info structure with
     transformations
 version 0.81 [August, 1995]
  incorporated Tim Wegner's medium model code (thanks, Tim)
 version 0.82 [September, 1995]
  [unspecified changes]
 version 0.85 [December, 1995]
  added more medium model code (almost everything's a far)
  added i/o, error, and memory callback functions
  fixed some bugs (16 bit, 4 bit interlaced, etc.)
  added first run progressive reader (barely tested)
 version 0.86 [January, 1996]
  fixed bugs
  improved documentation
 version 0.87 [January, 1996]
  fixed medium model bugs
  fixed other bugs introduced in 0.85 and 0.86
  added some minor documentation
 version 0.88 [January, 1996]
  fixed progressive bugs
  replaced tabs with spaces
  cleaned up documentation
  added callbacks for read/write and warning/error functions
 version 0.89 [July, 1996]
  added new initialization API to make libpng work better with shared libs
     we now have png_create_read_struct(), png_create_write_struct(),
@ -104,6 +118,7 @@ version 0.89 [July, 1996]
     into a binary when only reading or writing functionality is used
  new pngtest image also has interlacing and zTXt
  updated documentation to reflect new API
 version 0.90 [January, 1997]
  made CRC errors/warnings on critical and ancillary chunks configurable
  libpng will use the zlib CRC routines by (compile-time) default
@ -125,6 +140,7 @@ version 0.90 [January, 1997]
       be able to handle all chunks via a callback mechanism
  try to fix Linux "setjmp" buffer size problems
  removed png_large_malloc, png_large_free, and png_realloc functions.
 version 0.95 [March, 1997]
  fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
  fixed bug in PNG file signature compares when start != 0
@ -159,6 +175,7 @@ version 0.95 [March, 1997]
     functions in pngget.c to get infomation in info_ptr.  This isolates
     the application from the internal organization of png_info_struct
     (good for shared library implementations).
 version 0.96 [May, 1997]
  fixed serious bug with < 8bpp images introduced in 0.95
  fixed 256-color transparency bug (Greg Roelofs)
@ -169,6 +186,7 @@ version 0.96 [May, 1997]
  added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
  added typecasts to quiet compiler errors
  added more debugging info
 version 0.97 [January, 1998]
  removed PNG_USE_OWN_CRC capability
  relocated png_set_crc_action from pngrutil.c to pngrtran.c
@ -191,6 +209,7 @@ version 0.97 [January, 1998]
  added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
  regularized version numbering scheme and bumped shared-library major
     version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs)
 version 0.98 [January, 1998]
  cleaned up some typos in libpng.txt and in code documentation
  fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
@ -202,6 +221,7 @@ version 0.98 [January, 1998]
     PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
  added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
  changed srgb_intent from png_byte to int to avoid compiler bugs
 version 0.99 [January 30, 1998]
  free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
  fixed a longstanding "packswap" bug in pngtrans.c
@ -262,6 +282,7 @@ version 0.99h [March 6, 1998, evening]
  Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
  and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
  Added user transform capability
 version 1.00 [March 7, 1998]
  Changed several typedefs in pngrutil.c
  Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
@ -271,6 +292,7 @@ version 1.00 [March 7, 1998]
  changed some typedefs (s_start, etc.) in pngrutil.c
  fixed dimensions of "short_months" array in pngwrite.c
  Replaced ansi2knr.c with the one from jpeg-v6
 version 1.0.0 [March 8, 1998]
  Changed name from 1.00 to 1.0.0 (Adam Costello)
  Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
@ -285,6 +307,7 @@ version 1.0.0b [March 13, 1998]
  Quieted compiler complaints about two empty "for" loops in pngrutil.c
  Minor changes to makefile.s2x
  Removed #ifdef/#endif around a png_free() in pngread.c
 version 1.0.1 [March 14, 1998]
  Changed makefile.s2x to reduce security risk of using a relative pathname
  Fixed some typos in the documentation (Greg).
@ -353,6 +376,7 @@ version 1.0.1e [June 6, 1998]
    and revised pngtest.c to demonstrate their use, replacing the
    PNGTEST_DEBUG_MEM feature.
  Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
 version 1.0.2 [June 14, 1998]
  Fixed two bugs in makefile.bor .
 version 1.0.2a [December 30, 1998]
@ -387,6 +411,7 @@ version 1.0.2a [January 6, 1999]
  Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
  Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
    which is obsolete.
 version 1.0.3 [January 14, 1999]
  Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
  Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
@ -439,6 +464,7 @@ version 1.0.3d [September 4, 1999]
  Fixed type casting of igamma in pngrutil.c
  Added new png_expand functions to scripts/pngdef.pas and pngos2.def
  Added a demo read_user_transform_fn that examines the row filters in pngtest.c
 version 1.0.4 [September 24, 1999]
  Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
  Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
@ -477,6 +503,7 @@ version 1.0.4f [October 15, 1999]
  Added type casting mostly in pngrtran.c and pngwtran.c
  Removed some pointless "ptr = NULL" in pngmem.c
  Added a "contrib" directory containing the source code from Greg's book.
 version 1.0.5 [October 15, 1999]
  Minor editing of the INSTALL and README files.
 version 1.0.5a [October 23, 1999]
@ -660,6 +687,7 @@ version 1.0.5v [March 11, 2000]
  Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt.
  Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3,
    revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin)
 version 1.0.6 [March 20, 2000]
  Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c
  Added makefile.sggcc (SGI IRIX with gcc)
@ -798,6 +826,7 @@ version 1.0.7beta18 [June 23, 2000]
 version 1.0.7rc2 [June 28, 2000]
  Updated license to include disclaimers required by UCITA.
  Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
 version 1.0.7 [July 1, 2000]
  Revised the definition of "trans_values" in libpng.3/libpng.txt
 version 1.0.8beta1 [July 8, 2000]
@ -822,6 +851,7 @@ version 1.0.8beta4 [July 14, 2000]
  Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
 version 1.0.8rc1 [July 16, 2000]
  Revised png_debug() macros and statements to eliminate compiler warnings.
 version 1.0.8 [July 24, 2000]
  Added png_flush() in pngwrite.c, after png_write_IEND().
  Updated makefile.hpux to build a shared library.
@ -892,6 +922,7 @@ version 1.0.9beta11 [January 19, 2001]
    be re-enabled in version 1.2.0.
 version 1.0.9rc2 [January 22, 2001]
  Revised cygwin support.
 version 1.0.9 [January 31, 2001]
  Added check of cygwin's ALL_STATIC in pngconf.h
  Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.
@ -913,6 +944,7 @@ version 1.0.10rc1 [March 23, 2001]
    and png_strlen.
  Revised png_mmx_supported() function in pnggccrd.c to return proper value.
  Fixed bug in progressive reading (pngpread.c) with small images (height < 8).
 version 1.0.10 [March 30, 2001]
  Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin
  Added beos project files (Chris Herborth)
@ -930,6 +962,7 @@ version 1.0.11beta4 [April 20, 2001]
    from user's malloc_fn().
  Removed some useless type casts of the NULL pointer.
  Added makefile.netbsd
 version 1.0.11 [April 27, 2001]
  Revised makefile.netbsd
 version 1.0.12beta1 [May 14, 2001]
@ -978,6 +1011,7 @@ version 1.2.0beta5 [August 8, 2001]
  Revised makefile.sgi and makefile.sggcc
  Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
  Removed restriction that do_invert_mono only operate on 1-bit opaque files
 version 1.2.0 [September 1, 2001]
  Changed a png_warning() to png_debug() in pnggccrd.c
  Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
@ -1011,6 +1045,7 @@ version 1.2.1rc2 [December 4, 2001]
  Always allocate 256-entry internal palette, hist, and trans arrays, to
    avoid out-of-bounds memory reference caused by invalid PNG datastreams.
  Added a check for prefix_length > data_length in iCCP chunk handler.
 version 1.2.1 [December 7, 2001]
  None.
 version 1.2.2beta1 [February 22, 2002]
@ -1064,6 +1099,7 @@ version 1.0.13rc1 [April 7, 2002]
  Save the ebx register in pnggccrd.c (Sami Farin)
  Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner).
  Updated makefiles to put headers in include/libpng and remove old include/*.h.
 version 1.2.2 [April 15, 2002]
 version 1.0.13 [April 15, 2002]
  Revised description of png_set_filter() in libpng.3/libpng.txt.
@ -1118,6 +1154,7 @@ version 1.2.3rc6 [May 14, 2002]
  Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp.
  Removed leftover libpng-config "sed" script from four makefiles.
  Revised libpng-config creating script in 16 makefiles.
 version 1.2.3 [May 22, 2002]
  Revised libpng-config target in makefile.cygwin.
  Removed description of png_set_mem_fn() from documentation.
@ -1147,6 +1184,7 @@ version 1.2.4beta3 [June 28, 2002]
 version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
  Added "test-installed" target to makefile.cygwin and makefile.sco.
  Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
 version 1.2.4 and 1.0.14 [July 8, 2002]
  Changed png_warning() to png_error() when width is too large to process.
 version 1.2.4patch01 [July 20, 2002]
@ -1173,6 +1211,7 @@ version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
  Added missing "; fi" to makefile.32sunu.
 version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
  Revised libpng-config script.
 version 1.2.5 and 1.0.15 [October 3, 2002]
  Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
    and makefile.aix.
@ -1263,7 +1302,7 @@ version 1.2.6beta4 [July 28, 2004]
  Added some "#if PNG_WRITE_SUPPORTED" blocks.
  #ifdef'ed out some redundancy in png_malloc_default().
  Use png_malloc instead of png_zalloc to allocate the pallete.
-version 1.2.6rc1 [August 4, 2004]
+version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
  Fixed buffer overflow vulnerability in png_handle_tRNS()
  Fixed integer arithmetic overflow vulnerability in png_read_png().
  Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
@ -1277,7 +1316,7 @@ version 1.2.6rc1 [August 4, 2004]
  Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro.
  Fixed wrong cast of returns from png_get_user_width|height_max().
  Changed some "keep the compiler happy" from empty statements to returns,
-version 1.2.6rc2 [August 7, 2004]
+version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004]
  Revised makefile.darwin and makefile.solaris.  Removed makefile.macosx.
  Revised pngtest's png_debug_malloc() to use png_malloc() instead of
    png_malloc_default() which is not supposed to be exported.
@ -1291,21 +1330,28 @@ version 1.2.6rc2 [August 7, 2004]
  Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
  Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
  Added code to update the row_info->colortype in png_do_read_filler() (MSB).
-version 1.2.6rc3 [August 9, 2004]
+version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004]
  Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
    trouble with some 64-bit compilers.  Created PNG_OUT_OF_RANGE() macro.
  Revised documentation of png_set_keep_unknown_chunks().
  Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
  Moved  "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
  Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
-version 1.2.6rc4 [August 10, 2004]
+version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004]
  Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of
    "pinfo" was out of place).
-version 1.2.6rc5 [August 10, 2004]
+version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004]
  Moved  "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
     section of png.h where they were inadvertently placed in version rc3.
-version 1.2.6rc6 [August 15, 2004]
+
 version 1.0.16 and 1.2.6 [August 15, 2004]
  Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
 version 1.2.7beta1 [August 26, 2004]
  Removed unused pngasmrd.h file.
  Removed references to uu.net for archived files.  Added references to
    PNG Spec (second edition) and the PNG ISO/IEC Standard.
  Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
  Fixed bug with "optimized window size" in the IDAT datastream.
 Send comments/corrections/commendations to
 png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net
--- a/96
+++ b/96
@ -1,5 +1,5 @@
-Installing libpng version 1.2.6 - %DATE%
+Installing libpng version 1.2.7beta1 - August 26, 2004
 Before installing libpng, you must first install zlib.  zlib
 can usually be found wherever you got libpng.  zlib can be
@ -10,8 +10,8 @@ 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-1.2.6" or "lpng109" and "zlib-1.1.3"
+might be called "libpng-1.2.7beta1" or "lpng109" and "zlib-1.2.1"
-or "zlib113") so that you have directories called "zlib" and "libpng".
+or "zlib121") so that you have directories called "zlib" and "libpng".
 Your directory structure should look like this:
@ -23,14 +23,13 @@ Your directory structure should look like this:
          *.c
          contrib
             gregbook
             msvctest
             pngminus
             pngsuite
             visupng
          projects
             beos
-             borland
+             c5builder (Borland)
-             msvc
+             visualc6 (msvc)
             netware.txt
             wince.txt
          scripts
@ -48,13 +47,16 @@ If the line endings in the files look funny, you may wish to get the other
 distribution of libpng.  It is available in both tar.gz (UNIX style line
 endings) and zip (DOS style line endings) formats.
 If you are building libpng with MSVC, you can enter the libpng\msvc directory
 and follow the instructions in msvc\README.txt.
-You can build libpng for WindowsCE by entering the downloading and installing
+If you are building libpng with MSVC, you can enter the
-the libpng\wince directory as instructed in the projects\wince.txt file, and
+libpng projects\visualc6 directory and follow the instructions in
 projects\visualc6\README.txt.
 You can build libpng for WindowsCE by downloading and installing
 the projects\wince directory as instructed in the projects\wince.txt file, and
 then following the instructions in the README* files.  Similarly, you can
-build libpng for Netware as instructed in projects\netware.txt.
+build libpng for Netware or Beos as instructed in projects\netware.txt
 or projects\beos.
 Else enter the zlib directory and follow the instructions in zlib/README,
 then come back here and choose the appropriate makefile.sys in the scripts
@ -64,8 +66,10 @@ The files that are presently available in the scripts directory
 include
 makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
- makefile.linux    =>  Linux/ELF makefile (gcc, creates libpng%SONAME%.so.%SONUM%.1.2.6)
+ makefile.linux    =>  Linux/ELF makefile
- makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng%SONAME%.so.%SONUM%.1.2.6,
+                       (gcc, creates libpng12.so.0.1.2.7beta1)
 makefile.gcmmx    =>  Linux/ELF makefile
                       (gcc, creates libpng12.so.0.1.2.7beta1,
                       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
@ -73,23 +77,26 @@ include
                       ftp://ftp.cs.wisc.edu/ghost)
 makefile.aix      =>  AIX/gcc makefile
 makefile.cygwin   =>  Cygwin/gcc makefile
- makefile.darwin   =>  Darwin makefile
+ makefile.darwin   =>  Darwin makefile, can use on MacosX
 makefile.dec      =>  DEC Alpha UNIX makefile
- makefile.hpgcc    =>  FreeBSD makefile
+ makefile.freebsd  =>  FreeBSD makefile
 makefile.hpgcc    =>  HPUX makefile using gcc
 makefile.hpux     =>  HPUX (10.20 and 11.00) makefile
 makefile.ibmc     =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
 makefile.intel    =>  Intel C/C++ version 4.0 and later
 libpng.icc        =>  Project file for IBM VisualAge/C++ version 4.0 or later
 makefile.macosx   =>  MACOS X Makefile
 makefile.netbsd   =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
- makefile.ne%SONUM%bsd  =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng%SONUM%.so
+ makefile.ne0bsd  =>  NetBSD/cc makefile, uses PNGGCCRD,
                       makes libpng0.so
 makefile.openbsd  =>  OpenBSD makefile
 makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
- makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng%SONAME%.so.%SONUM%.1.2.6)
+ makefile.sggcc    =>  Silicon Graphics (gcc,
                       creates libpng12.so.0.1.2.7beta1)
 makefile.sunos    =>  Sun makefile
- makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng%SONAME%.so.%SONUM%.1.2.6)
+ makefile.solaris  =>  Solaris 2.X makefile (gcc,
- makefile.so9      =>  Solaris 9 makefile (gcc, creates libpng%SONAME%.so.%SONUM%.1.2.6)
+                       creates libpng12.so.0.1.2.7beta1)
 makefile.so9      =>  Solaris 9 makefile (gcc,
                       creates libpng12.so.0.1.2.7beta1)
 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
@ -130,13 +137,13 @@ target directories to match your preferences.
 Then read pngconf.h to see if you want to make any configuration
 changes.
-Then just run "make test" which will create the libpng library in
+Then just run "make" which will create the libpng library in
-this directory and run a quick test that reads the "pngtest.png"
+this directory and "make test" which will run a quick test that reads
-file and writes a "pngout.png" file that should be identical to it.
+the "pngtest.png" file and writes a "pngout.png" file that should be
-Look for "9782 zero samples" in the output of the test.  For more
+identical to it.  Look for "9782 zero samples" in the output of the
-confidence, you can run another test by typing "pngtest pngnow.png"
+test.  For more confidence, you can run another test by typing
-and looking for "289 zero samples" in the output.  Also, you can
+"pngtest pngnow.png" and looking for "289 zero samples" in the output.
-run "pngtest -m *.png" in the "contrib/pngsuite" directory and compare
+Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
 your output with the result shown in contrib/pngsuite/README.
 Most of the makefiles will allow you to run "make install" to
@ -145,26 +152,17 @@ do that, run "make install" in the zlib directory first if necessary).
 Some also allow you to run "make test-installed" after you have
 run "make install".
 If you encounter a compiler error message complaining about the
 lines
      __png.h__ already includes setjmp.h;
      __dont__ include it again.;
 This means you have compiled another module that includes setjmp.h,
 which is hazardous because the two modules might not include exactly
 the same setjmp.h.  If you are sure that you know what you are doing
 and that they are exactly the same, then you can comment out or
 delete the two lines.  Better yet, use the cexcept interface
 instead, as demonstrated in contrib/visupng of the libpng distribution.
 Further information can be found in the README and libpng.txt
-files, in the individual makefiles, in png.h, in the README files in
+files, in the individual makefiles, in png.h, and the manual pages
-subdirectories of the LIB directory, and the manual pages libpng.3 and png.5.
+libpng.3 and png.5.
 Using the ./configure script -- 16 December 2002.
 =================================================
 The ./configure script should work compatibly with what scripts/makefile.*
 did, however there are some options you need to add to configure explicitly,
 which previously was done semi-automatically (if you didn't edit
 scripts/makefile.* yourself, that is)
 CFLAGS="-Wall -O3 -funroll-loops \
 -malign-loops=2 -malign-functions=2" ./configure --prefix=/usr/include \
 --with-pkgconfigdir=/usr/lib/pkgconfig --includedir=/usr/include
 You can alternatively specify --includedir=/usr/include, /usr/local/include,
 /usr/include/png12, or whatever.
--- a/2
+++ b/2
@ -1,5 +1,5 @@
-Known bugs in libpng version 1.2.6
+Known bugs in libpng version 1.2.7beta1
 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/4
+++ b/4
@ -8,7 +8,7 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
 If you modify libpng you may insert additional notices immediately following
 this sentence.
-libpng version 1.2.6, August 15, 2004, is
+libpng version 1.2.6, August 26, 2004, is
 Copyright (c) 2004 Glenn Randers-Pehrson, and is
 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@users.sourceforge.net
-August 15, 2004
+August 26, 2004
--- a/Makefile.am
+++ b/Makefile.am
@ -1,66 +0,0 @@
 # test
 check_PROGRAMS= pngtest
 pngtest_SOURCES = pngtest.c
 pngtest_LDADD = libpng.la
 TESTS = test-pngtest.sh
 TESTS_ENVIRONMENT= srcdir=$(srcdir) 
 dist_man_MANS= libpng.3 libpngpf.3 png.5
 include_HEADERS= png.h pngconf.h 
 bin_SCRIPTS=libpng-config libpng12-config 
 #rules to build libpng
 lib_LTLIBRARIES=libpng12.la libpng.la
 libpng12_la_SOURCES = png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c \
 	png.h pngconf.h 
 libpng_la_SOURCES = $(libpng12_la_SOURCES)
 libpng12_la_LDFLAGS = -export-dynamic -version-info $(LIBPNG12_VERSION_INFO)
 libpng_la_LDFLAGS = -export-dynamic -version-info $(LIBPNG3_VERSION_INFO)
 #distribute headers in /usr/include/libpng/*
 pkginclude_HEADERS= png.h pngconf.h
 #extra source distribution files.
 EXTRA_DIST= ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
 	pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
 	${srcdir}/projects/cbuilder5/* ${srcdir}/projects/beos/* ${srcdir}/projects/visualc6/* \
 	${srcdir}/projects/wince.txt ${srcdir}/projects/netware.txt \
 	${srcdir}/scripts/* \
 	${srcdir}/contrib/gregbook/* \
 	${srcdir}/contrib/pngminus/* \
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
 	example.c libpng.txt pngasmrd.h pnggccrd.c pngvcrd.c 
 CLEANFILES= pngout.png libpng.pc libpng12.pc libpng-config libpng12-config
 libpng.pc:
 	cat ${srcdir}/scripts/libpng.pc.in | \
 	sed -e 's,[@]PREFIX[@],$(prefix),' -e 's,[@]INCLUDEDIR[@],$(includedir),' > libpng.pc
 libpng12.pc: libpng.pc
 	cp libpng.pc libpng12.pc
 install-data-local: libpng.pc libpng12.pc
 	@INSTALL@ -d @PKGCONFIGDIR@
 	@INSTALL_DATA@ libpng.pc @PKGCONFIGDIR@
 	@INSTALL_DATA@ libpng12.pc @PKGCONFIGDIR@
 uninstall-local:
 	rm -f @PKGCONFIGDIR@/libpng.pc
 	rm -f @PKGCONFIGDIR@/libpng12.pc
 libpng-config:
 	( cat ${srcdir}/scripts/libpng-config-head.in; \
 	echo prefix=\"$(prefix)\"; \
 	echo I_opts=\"-I$(includedir)\"; \
 	echo L_opts=\"-L$(libdir)\"; \
 	echo R_opts=\"-Wl,-rpath,$(libdir)\"; \
 	echo libs=\"-lpng12 -lz -lm\"; \
 	cat ${srcdir}/scripts/libpng-config-body.in ) > libpng-config
 libpng12-config: libpng-config
 	cp libpng-config libpng12-config
--- a/Makefile.in
+++ b/Makefile.in
@ -1,898 +0,0 @@
 # Makefile.in generated by automake 1.7.2 from Makefile.am.
 # @configure_input@
 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
 # Free Software Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 # PARTICULAR PURPOSE.
@SET_MAKE@
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 VPATH = @srcdir@
 pkgdatadir = $(datadir)/@PACKAGE@
 pkglibdir = $(libdir)/@PACKAGE@
 pkgincludedir = $(includedir)/@PACKAGE@
 top_builddir = .
 am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
 INSTALL = @INSTALL@
 install_sh_DATA = $(install_sh) -c -m 644
 install_sh_PROGRAM = $(install_sh) -c
 install_sh_SCRIPT = $(install_sh) -c
 INSTALL_HEADER = $(INSTALL_DATA)
 transform = $(program_transform_name)
 NORMAL_INSTALL = :
 PRE_INSTALL = :
 POST_INSTALL = :
 NORMAL_UNINSTALL = :
 PRE_UNINSTALL = :
 POST_UNINSTALL = :
 host_triplet = @host@
 ACLOCAL = @ACLOCAL@
 AMDEP_FALSE = @AMDEP_FALSE@
 AMDEP_TRUE = @AMDEP_TRUE@
 AMTAR = @AMTAR@
 AUTOCONF = @AUTOCONF@
 AUTOHEADER = @AUTOHEADER@
 AUTOMAKE = @AUTOMAKE@
 AWK = @AWK@
 CC = @CC@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
 CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
 ECHO = @ECHO@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
 LIBPNG12_VERSION_INFO = @LIBPNG12_VERSION_INFO@
 LIBPNG3_VERSION_INFO = @LIBPNG3_VERSION_INFO@
 LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@
 LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
 MAKEINFO = @MAKEINFO@
 OBJEXT = @OBJEXT@
 PACKAGE = @PACKAGE@
 PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
 PACKAGE_NAME = @PACKAGE_NAME@
 PACKAGE_STRING = @PACKAGE_STRING@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKGCONFIGDIR = @PKGCONFIGDIR@
 POW_LIB = @POW_LIB@
 RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
 VERSION = @VERSION@
 ac_ct_CC = @ac_ct_CC@
 ac_ct_RANLIB = @ac_ct_RANLIB@
 ac_ct_STRIP = @ac_ct_STRIP@
 am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
 am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
 am__include = @am__include@
 am__quote = @am__quote@
 bindir = @bindir@
 build = @build@
 build_alias = @build_alias@
 build_cpu = @build_cpu@
 build_os = @build_os@
 build_vendor = @build_vendor@
 datadir = @datadir@
 exec_prefix = @exec_prefix@
 host = @host@
 host_alias = @host_alias@
 host_cpu = @host_cpu@
 host_os = @host_os@
 host_vendor = @host_vendor@
 includedir = @includedir@
 infodir = @infodir@
 install_sh = @install_sh@
 libdir = @libdir@
 libexecdir = @libexecdir@
 localstatedir = @localstatedir@
 mandir = @mandir@
 oldincludedir = @oldincludedir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 sysconfdir = @sysconfdir@
 target_alias = @target_alias@
 # test
 check_PROGRAMS = pngtest
 pngtest_SOURCES = pngtest.c
 pngtest_LDADD = libpng.la
 TESTS = test-pngtest.sh
 TESTS_ENVIRONMENT = srcdir=$(srcdir) 
 dist_man_MANS = libpng.3 libpngpf.3 png.5
 include_HEADERS = png.h pngconf.h 
 bin_SCRIPTS = libpng-config libpng12-config 
 #rules to build libpng
 lib_LTLIBRARIES = libpng12.la libpng.la
 libpng12_la_SOURCES = png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c \
 	png.h pngconf.h 
 libpng_la_SOURCES = $(libpng12_la_SOURCES)
 libpng12_la_LDFLAGS = -export-dynamic -version-info $(LIBPNG12_VERSION_INFO)
 libpng_la_LDFLAGS = -export-dynamic -version-info $(LIBPNG3_VERSION_INFO)
 #distribute headers in /usr/include/libpng/*
 pkginclude_HEADERS = png.h pngconf.h
 #extra source distribution files.
 EXTRA_DIST = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
 	pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
 	${srcdir}/projects/borland/* ${srcdir}/projects/beos/* ${srcdir}/projects/msvc/* \
 	${srcdir}/projects/wince.txt ${srcdir}/projects/netware.txt \
 	${srcdir}/scripts/* \
 	${srcdir}/contrib/gregbook/* \
 	${srcdir}/contrib/msvctest/* \
 	${srcdir}/contrib/pngminus/* \
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
 	example.c libpng.txt pngasmrd.h pnggccrd.c pngvcrd.c 
 CLEANFILES = pngout.png libpng.pc libpng12.pc libpng-config libpng12-config
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = config.h
 CONFIG_CLEAN_FILES =
 LTLIBRARIES = $(lib_LTLIBRARIES)
 libpng_la_LIBADD =
 am__objects_1 = png.lo pngset.lo pngget.lo pngrutil.lo pngtrans.lo \
 	pngwutil.lo pngread.lo pngrio.lo pngwio.lo pngwrite.lo \
 	pngrtran.lo pngwtran.lo pngmem.lo pngerror.lo pngpread.lo
 am_libpng_la_OBJECTS = $(am__objects_1)
 libpng_la_OBJECTS = $(am_libpng_la_OBJECTS)
 libpng12_la_LIBADD =
 am_libpng12_la_OBJECTS = png.lo pngset.lo pngget.lo pngrutil.lo \
 	pngtrans.lo pngwutil.lo pngread.lo pngrio.lo pngwio.lo \
 	pngwrite.lo pngrtran.lo pngwtran.lo pngmem.lo pngerror.lo \
 	pngpread.lo
 libpng12_la_OBJECTS = $(am_libpng12_la_OBJECTS)
 check_PROGRAMS = pngtest$(EXEEXT)
 am_pngtest_OBJECTS = pngtest.$(OBJEXT)
 pngtest_OBJECTS = $(am_pngtest_OBJECTS)
 pngtest_DEPENDENCIES = libpng.la
 pngtest_LDFLAGS =
 SCRIPTS = $(bin_SCRIPTS)
 DEFAULT_INCLUDES =  -I. -I$(srcdir) -I.
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@AMDEP_TRUE@DEP_FILES = ./$(DEPDIR)/png.Plo ./$(DEPDIR)/pngerror.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngget.Plo ./$(DEPDIR)/pngmem.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngpread.Plo ./$(DEPDIR)/pngread.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngrio.Plo ./$(DEPDIR)/pngrtran.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngrutil.Plo ./$(DEPDIR)/pngset.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngtest.Po ./$(DEPDIR)/pngtrans.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngwio.Plo ./$(DEPDIR)/pngwrite.Plo \
@AMDEP_TRUE@	./$(DEPDIR)/pngwtran.Plo ./$(DEPDIR)/pngwutil.Plo
 COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
 	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) \
 	$(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 CCLD = $(CC)
 LINK = $(LIBTOOL) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
 DIST_SOURCES = $(libpng_la_SOURCES) $(libpng12_la_SOURCES) \
 	$(pngtest_SOURCES)
 NROFF = nroff
 MANS = $(dist_man_MANS)
 HEADERS = $(include_HEADERS) $(pkginclude_HEADERS)
 DIST_COMMON = README $(dist_man_MANS) $(include_HEADERS) \
 	$(pkginclude_HEADERS) INSTALL Makefile.am Makefile.in TODO \
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 SOURCES = $(libpng_la_SOURCES) $(libpng12_la_SOURCES) $(pngtest_SOURCES)
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am
 .SUFFIXES:
 .SUFFIXES: .c .lo .o .obj
 am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
 configure.lineno
 $(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.ac $(ACLOCAL_M4)
 	cd $(top_srcdir) && \
 	  $(AUTOMAKE) --foreign  Makefile
 Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
 	cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)
 $(top_builddir)/config.status: $(srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	$(SHELL) ./config.status --recheck
 $(srcdir)/configure:  $(srcdir)/configure.ac $(ACLOCAL_M4) $(CONFIGURE_DEPENDENCIES)
 	cd $(srcdir) && $(AUTOCONF)
 $(ACLOCAL_M4):  configure.ac 
 	cd $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
 config.h: stamp-h1
 	@if test ! -f $@; then \
 	  rm -f stamp-h1; \
 	  $(MAKE) stamp-h1; \
 	else :; fi
 stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
 	@rm -f stamp-h1
 	cd $(top_builddir) && $(SHELL) ./config.status config.h
 $(srcdir)/config.h.in:  $(top_srcdir)/configure.ac $(ACLOCAL_M4) 
 	cd $(top_srcdir) && $(AUTOHEADER)
 	touch $(srcdir)/config.h.in
 distclean-hdr:
 	-rm -f config.h stamp-h1
 libLTLIBRARIES_INSTALL = $(INSTALL)
 install-libLTLIBRARIES: $(lib_LTLIBRARIES)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(libdir)
 	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
 	  if test -f $$p; then \
 	    f="`echo $$p | sed -e 's|^.*/||'`"; \
 	    echo " $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) $$p $(DESTDIR)$(libdir)/$$f"; \
 	    $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) $$p $(DESTDIR)$(libdir)/$$f; \
 	  else :; fi; \
 	done
 uninstall-libLTLIBRARIES:
 	@$(NORMAL_UNINSTALL)
 	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
 	    p="`echo $$p | sed -e 's|^.*/||'`"; \
 	  echo " $(LIBTOOL) --mode=uninstall rm -f $(DESTDIR)$(libdir)/$$p"; \
 	  $(LIBTOOL) --mode=uninstall rm -f $(DESTDIR)$(libdir)/$$p; \
 	done
 clean-libLTLIBRARIES:
 	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
 	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
 	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
 	  test "$$dir" = "$$p" && dir=.; \
 	  echo "rm -f \"$${dir}/so_locations\""; \
 	  rm -f "$${dir}/so_locations"; \
 	done
 libpng.la: $(libpng_la_OBJECTS) $(libpng_la_DEPENDENCIES) 
 	$(LINK) -rpath $(libdir) $(libpng_la_LDFLAGS) $(libpng_la_OBJECTS) $(libpng_la_LIBADD) $(LIBS)
 libpng12.la: $(libpng12_la_OBJECTS) $(libpng12_la_DEPENDENCIES) 
 	$(LINK) -rpath $(libdir) $(libpng12_la_LDFLAGS) $(libpng12_la_OBJECTS) $(libpng12_la_LIBADD) $(LIBS)
 clean-checkPROGRAMS:
 	@list='$(check_PROGRAMS)'; for p in $$list; do \
 	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
 	  echo " rm -f $$p $$f"; \
 	  rm -f $$p $$f ; \
 	done
 pngtest$(EXEEXT): $(pngtest_OBJECTS) $(pngtest_DEPENDENCIES) 
 	@rm -f pngtest$(EXEEXT)
 	$(LINK) $(pngtest_LDFLAGS) $(pngtest_OBJECTS) $(pngtest_LDADD) $(LIBS)
 binSCRIPT_INSTALL = $(INSTALL_SCRIPT)
 install-binSCRIPTS: $(bin_SCRIPTS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(bindir)
 	@list='$(bin_SCRIPTS)'; for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  if test -f $$d$$p; then \
 	    f=`echo "$$p" | sed 's|^.*/||;$(transform)'`; \
 	    echo " $(binSCRIPT_INSTALL) $$d$$p $(DESTDIR)$(bindir)/$$f"; \
 	    $(binSCRIPT_INSTALL) $$d$$p $(DESTDIR)$(bindir)/$$f; \
 	  else :; fi; \
 	done
 uninstall-binSCRIPTS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(bin_SCRIPTS)'; for p in $$list; do \
 	  f=`echo "$$p" | sed 's|^.*/||;$(transform)'`; \
 	  echo " rm -f $(DESTDIR)$(bindir)/$$f"; \
 	  rm -f $(DESTDIR)$(bindir)/$$f; \
 	done
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT) core *.core
 distclean-compile:
 	-rm -f *.tab.c
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/png.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngerror.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngget.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngmem.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngpread.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngread.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngrio.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngrtran.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngrutil.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngset.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngtest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngtrans.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngwio.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngwrite.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngwtran.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pngwutil.Plo@am__quote@
 distclean-depend:
 	-rm -rf ./$(DEPDIR)
 .c.o:
@am__fastdepCC_TRUE@	if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" \
@am__fastdepCC_TRUE@	  -c -o $@ `test -f '$<' || echo '$(srcdir)/'`$<; \
@am__fastdepCC_TRUE@	then mv "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; \
@am__fastdepCC_TRUE@	else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \
@am__fastdepCC_TRUE@	fi
@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@	$(COMPILE) -c `test -f '$<' || echo '$(srcdir)/'`$<
 .c.obj:
@am__fastdepCC_TRUE@	if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" \
@am__fastdepCC_TRUE@	  -c -o $@ `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(srcdir)/$<'; fi`; \
@am__fastdepCC_TRUE@	then mv "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; \
@am__fastdepCC_TRUE@	else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \
@am__fastdepCC_TRUE@	fi
@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@	$(COMPILE) -c `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(srcdir)/$<'; fi`
 .c.lo:
@am__fastdepCC_TRUE@	if $(LTCOMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" \
@am__fastdepCC_TRUE@	  -c -o $@ `test -f '$<' || echo '$(srcdir)/'`$<; \
@am__fastdepCC_TRUE@	then mv "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Plo"; \
@am__fastdepCC_TRUE@	else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \
@am__fastdepCC_TRUE@	fi
@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	depfile='$(DEPDIR)/$*.Plo' tmpdepfile='$(DEPDIR)/$*.TPlo' @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ `test -f '$<' || echo '$(srcdir)/'`$<
 mostlyclean-libtool:
 	-rm -f *.lo
 clean-libtool:
 	-rm -rf .libs _libs
 distclean-libtool:
 	-rm -f libtool
 uninstall-info-am:
 man3dir = $(mandir)/man3
 install-man3: $(man3_MANS) $(man_MANS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(man3dir)
 	@list='$(man3_MANS) $(dist_man3_MANS) $(nodist_man3_MANS)'; \
 	l2='$(man_MANS) $(dist_man_MANS) $(nodist_man_MANS)'; \
 	for i in $$l2; do \
 	  case "$$i" in \
 	    *.3*) list="$$list $$i" ;; \
 	  esac; \
 	done; \
 	for i in $$list; do \
 	  if test -f $(srcdir)/$$i; then file=$(srcdir)/$$i; \
 	  else file=$$i; fi; \
 	  ext=`echo $$i | sed -e 's/^.*\\.//'`; \
 	  case "$$ext" in \
 	    3*) ;; \
 	    *) ext='3' ;; \
 	  esac; \
 	  inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
 	  inst=`echo $$inst | sed -e 's/^.*\///'`; \
 	  inst=`echo $$inst | sed '$(transform)'`.$$ext; \
 	  echo " $(INSTALL_DATA) $$file $(DESTDIR)$(man3dir)/$$inst"; \
 	  $(INSTALL_DATA) $$file $(DESTDIR)$(man3dir)/$$inst; \
 	done
 uninstall-man3:
 	@$(NORMAL_UNINSTALL)
 	@list='$(man3_MANS) $(dist_man3_MANS) $(nodist_man3_MANS)'; \
 	l2='$(man_MANS) $(dist_man_MANS) $(nodist_man_MANS)'; \
 	for i in $$l2; do \
 	  case "$$i" in \
 	    *.3*) list="$$list $$i" ;; \
 	  esac; \
 	done; \
 	for i in $$list; do \
 	  ext=`echo $$i | sed -e 's/^.*\\.//'`; \
 	  case "$$ext" in \
 	    3*) ;; \
 	    *) ext='3' ;; \
 	  esac; \
 	  inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
 	  inst=`echo $$inst | sed -e 's/^.*\///'`; \
 	  inst=`echo $$inst | sed '$(transform)'`.$$ext; \
 	  echo " rm -f $(DESTDIR)$(man3dir)/$$inst"; \
 	  rm -f $(DESTDIR)$(man3dir)/$$inst; \
 	done
 man5dir = $(mandir)/man5
 install-man5: $(man5_MANS) $(man_MANS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(man5dir)
 	@list='$(man5_MANS) $(dist_man5_MANS) $(nodist_man5_MANS)'; \
 	l2='$(man_MANS) $(dist_man_MANS) $(nodist_man_MANS)'; \
 	for i in $$l2; do \
 	  case "$$i" in \
 	    *.5*) list="$$list $$i" ;; \
 	  esac; \
 	done; \
 	for i in $$list; do \
 	  if test -f $(srcdir)/$$i; then file=$(srcdir)/$$i; \
 	  else file=$$i; fi; \
 	  ext=`echo $$i | sed -e 's/^.*\\.//'`; \
 	  case "$$ext" in \
 	    5*) ;; \
 	    *) ext='5' ;; \
 	  esac; \
 	  inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
 	  inst=`echo $$inst | sed -e 's/^.*\///'`; \
 	  inst=`echo $$inst | sed '$(transform)'`.$$ext; \
 	  echo " $(INSTALL_DATA) $$file $(DESTDIR)$(man5dir)/$$inst"; \
 	  $(INSTALL_DATA) $$file $(DESTDIR)$(man5dir)/$$inst; \
 	done
 uninstall-man5:
 	@$(NORMAL_UNINSTALL)
 	@list='$(man5_MANS) $(dist_man5_MANS) $(nodist_man5_MANS)'; \
 	l2='$(man_MANS) $(dist_man_MANS) $(nodist_man_MANS)'; \
 	for i in $$l2; do \
 	  case "$$i" in \
 	    *.5*) list="$$list $$i" ;; \
 	  esac; \
 	done; \
 	for i in $$list; do \
 	  ext=`echo $$i | sed -e 's/^.*\\.//'`; \
 	  case "$$ext" in \
 	    5*) ;; \
 	    *) ext='5' ;; \
 	  esac; \
 	  inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
 	  inst=`echo $$inst | sed -e 's/^.*\///'`; \
 	  inst=`echo $$inst | sed '$(transform)'`.$$ext; \
 	  echo " rm -f $(DESTDIR)$(man5dir)/$$inst"; \
 	  rm -f $(DESTDIR)$(man5dir)/$$inst; \
 	done
 includeHEADERS_INSTALL = $(INSTALL_HEADER)
 install-includeHEADERS: $(include_HEADERS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(includedir)
 	@list='$(include_HEADERS)'; for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  f="`echo $$p | sed -e 's|^.*/||'`"; \
 	  echo " $(includeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(includedir)/$$f"; \
 	  $(includeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(includedir)/$$f; \
 	done
 uninstall-includeHEADERS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(include_HEADERS)'; for p in $$list; do \
 	  f="`echo $$p | sed -e 's|^.*/||'`"; \
 	  echo " rm -f $(DESTDIR)$(includedir)/$$f"; \
 	  rm -f $(DESTDIR)$(includedir)/$$f; \
 	done
 pkgincludeHEADERS_INSTALL = $(INSTALL_HEADER)
 install-pkgincludeHEADERS: $(pkginclude_HEADERS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(pkgincludedir)
 	@list='$(pkginclude_HEADERS)'; for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  f="`echo $$p | sed -e 's|^.*/||'`"; \
 	  echo " $(pkgincludeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(pkgincludedir)/$$f"; \
 	  $(pkgincludeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(pkgincludedir)/$$f; \
 	done
 uninstall-pkgincludeHEADERS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(pkginclude_HEADERS)'; for p in $$list; do \
 	  f="`echo $$p | sed -e 's|^.*/||'`"; \
 	  echo " rm -f $(DESTDIR)$(pkgincludedir)/$$f"; \
 	  rm -f $(DESTDIR)$(pkgincludedir)/$$f; \
 	done
 ETAGS = etags
 ETAGSFLAGS =
 CTAGS = ctags
 CTAGSFLAGS =
 tags: TAGS
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
 	  done | \
 	  $(AWK) '    { files[$$0] = 1; } \
 	       END { for (i in files) print i; }'`; \
 	mkid -fID $$unique
 TAGS:  $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
 		$(TAGS_FILES) $(LISP)
 	tags=; \
 	here=`pwd`; \
 	list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
 	  done | \
 	  $(AWK) '    { files[$$0] = 1; } \
 	       END { for (i in files) print i; }'`; \
 	test -z "$(ETAGS_ARGS)$$tags$$unique" \
 	  || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
 	     $$tags $$unique
 ctags: CTAGS
 CTAGS:  $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
 		$(TAGS_FILES) $(LISP)
 	tags=; \
 	here=`pwd`; \
 	list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
 	  done | \
 	  $(AWK) '    { files[$$0] = 1; } \
 	       END { for (i in files) print i; }'`; \
 	test -z "$(CTAGS_ARGS)$$tags$$unique" \
 	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
 	     $$tags $$unique
 GTAGS:
 	here=`$(am__cd) $(top_builddir) && pwd` \
 	  && cd $(top_srcdir) \
 	  && gtags -i $(GTAGS_ARGS) $$here
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 check-TESTS: $(TESTS)
 	@failed=0; all=0; xfail=0; xpass=0; skip=0; \
 	srcdir=$(srcdir); export srcdir; \
 	list='$(TESTS)'; \
 	if test -n "$$list"; then \
 	  for tst in $$list; do \
 	    if test -f ./$$tst; then dir=./; \
 	    elif test -f $$tst; then dir=; \
 	    else dir="$(srcdir)/"; fi; \
 	    if $(TESTS_ENVIRONMENT) $${dir}$$tst; then \
 	      all=`expr $$all + 1`; \
 	      case " $(XFAIL_TESTS) " in \
 	      *" $$tst "*) \
 	        xpass=`expr $$xpass + 1`; \
 	        failed=`expr $$failed + 1`; \
 	        echo "XPASS: $$tst"; \
 	      ;; \
 	      *) \
 	        echo "PASS: $$tst"; \
 	      ;; \
 	      esac; \
 	    elif test $$? -ne 77; then \
 	      all=`expr $$all + 1`; \
 	      case " $(XFAIL_TESTS) " in \
 	      *" $$tst "*) \
 	        xfail=`expr $$xfail + 1`; \
 	        echo "XFAIL: $$tst"; \
 	      ;; \
 	      *) \
 	        failed=`expr $$failed + 1`; \
 	        echo "FAIL: $$tst"; \
 	      ;; \
 	      esac; \
 	    else \
 	      skip=`expr $$skip + 1`; \
 	      echo "SKIP: $$tst"; \
 	    fi; \
 	  done; \
 	  if test "$$failed" -eq 0; then \
 	    if test "$$xfail" -eq 0; then \
 	      banner="All $$all tests passed"; \
 	    else \
 	      banner="All $$all tests behaved as expected ($$xfail expected failures)"; \
 	    fi; \
 	  else \
 	    if test "$$xpass" -eq 0; then \
 	      banner="$$failed of $$all tests failed"; \
 	    else \
 	      banner="$$failed of $$all tests did not behave as expected ($$xpass unexpected passes)"; \
 	    fi; \
 	  fi; \
 	  dashes="$$banner"; \
 	  skipped=""; \
 	  if test "$$skip" -ne 0; then \
 	    skipped="($$skip tests were not run)"; \
 	    test `echo "$$skipped" | wc -c` -gt `echo "$$banner" | wc -c` && \
 	      dashes="$$skipped"; \
 	  fi; \
 	  report=""; \
 	  if test "$$failed" -ne 0 && test -n "$(PACKAGE_BUGREPORT)"; then \
 	    report="Please report to $(PACKAGE_BUGREPORT)"; \
 	    test `echo "$$report" | wc -c` -gt `echo "$$banner" | wc -c` && \
 	      dashes="$$report"; \
 	  fi; \
 	  dashes=`echo "$$dashes" | sed s/./=/g`; \
 	  echo "$$dashes"; \
 	  echo "$$banner"; \
 	  test -n "$$skipped" && echo "$$skipped"; \
 	  test -n "$$report" && echo "$$report"; \
 	  echo "$$dashes"; \
 	  test "$$failed" -eq 0; \
 	else :; fi
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 top_distdir = .
 distdir = $(PACKAGE)-$(VERSION)
 am__remove_distdir = \
  { test ! -d $(distdir) \
    || { find $(distdir) -type d ! -perm -200 -exec chmod u+w {} ';' \
         && rm -fr $(distdir); }; }
 GZIP_ENV = --best
 distuninstallcheck_listfiles = find . -type f -print
 distcleancheck_listfiles = find . -type f -print
 distdir: $(DISTFILES)
 	$(am__remove_distdir)
 	mkdir $(distdir)
 	$(mkinstalldirs) $(distdir)/${srcdir}/contrib/gregbook $(distdir)/${srcdir}/contrib/msvctest $(distdir)/${srcdir}/contrib/pngminus $(distdir)/${srcdir}/contrib/pngsuite $(distdir)/${srcdir}/contrib/visupng $(distdir)/${srcdir}/projects $(distdir)/${srcdir}/projects/beos $(distdir)/${srcdir}/projects/borland $(distdir)/${srcdir}/projects/msvc $(distdir)/${srcdir}/scripts
 	@srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
 	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
 	list='$(DISTFILES)'; for file in $$list; do \
 	  case $$file in \
 	    $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
 	    $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
 	  esac; \
 	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
 	  dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
 	  if test "$$dir" != "$$file" && test "$$dir" != "."; then \
 	    dir="/$$dir"; \
 	    $(mkinstalldirs) "$(distdir)$$dir"; \
 	  else \
 	    dir=''; \
 	  fi; \
 	  if test -d $$d/$$file; then \
 	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
 	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
 	    fi; \
 	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
 	  else \
 	    test -f $(distdir)/$$file \
 	    || cp -p $$d/$$file $(distdir)/$$file \
 	    || exit 1; \
 	  fi; \
 	done
 	-find $(distdir) -type d ! -perm -777 -exec chmod a+rwx {} \; -o \
 	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
 	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
 	  ! -type d ! -perm -444 -exec $(SHELL) $(install_sh) -c -m a+r {} {} \; \
 	|| chmod -R a+r $(distdir)
 dist-gzip: distdir
 	$(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
 	$(am__remove_distdir)
 dist dist-all: distdir
 	$(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
 	$(am__remove_distdir)
 # This target untars the dist file and tries a VPATH configuration.  Then
 # it guarantees that the distribution is self-contained by making another
 # tarfile.
 distcheck: dist
 	$(am__remove_distdir)
 	GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | $(AMTAR) xf -
 	chmod -R a-w $(distdir); chmod a+w $(distdir)
 	mkdir $(distdir)/=build
 	mkdir $(distdir)/=inst
 	chmod a-w $(distdir)
 	dc_install_base=`$(am__cd) $(distdir)/=inst && pwd` \
 	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
 	  && cd $(distdir)/=build \
 	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
 	    $(DISTCHECK_CONFIGURE_FLAGS) \
 	  && $(MAKE) $(AM_MAKEFLAGS) \
 	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
 	  && $(MAKE) $(AM_MAKEFLAGS) check \
 	  && $(MAKE) $(AM_MAKEFLAGS) install \
 	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
 	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
 	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
 	        distuninstallcheck \
 	  && chmod -R a-w "$$dc_install_base" \
 	  && ({ \
 	       (cd ../.. && $(mkinstalldirs) "$$dc_destdir") \
 	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
 	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
 	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
 	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
 	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
 	  && rm -rf "$$dc_destdir" \
 	  && $(MAKE) $(AM_MAKEFLAGS) dist-gzip \
 	  && rm -f $(distdir).tar.gz \
 	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck
 	$(am__remove_distdir)
 	@echo "$(distdir).tar.gz is ready for distribution" | \
 	  sed 'h;s/./=/g;p;x;p;x'
 distuninstallcheck:
 	cd $(distuninstallcheck_dir) \
 	&& test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
 	   || { echo "ERROR: files left after uninstall:" ; \
 	        if test -n "$(DESTDIR)"; then \
 	          echo "  (check DESTDIR support)"; \
 	        fi ; \
 	        $(distuninstallcheck_listfiles) ; \
 	        exit 1; } >&2
 distcleancheck: distclean
 	if test '$(srcdir)' = . ; then \
 	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
 	  exit 1 ; \
 	fi
 	test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
 	  || { echo "ERROR: files left in build directory after distclean:" ; \
 	       $(distcleancheck_listfiles) ; \
 	       exit 1; } >&2
 check-am: all-am
 	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
 	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
 check: check-am
 all-am: Makefile $(LTLIBRARIES) $(SCRIPTS) $(MANS) $(HEADERS) config.h
 installdirs:
 	$(mkinstalldirs) $(DESTDIR)$(libdir) $(DESTDIR)$(bindir) $(DESTDIR)$(man3dir) $(DESTDIR)$(man5dir) $(DESTDIR)$(includedir) $(DESTDIR)$(pkgincludedir)
 install: install-am
 install-exec: install-exec-am
 install-data: install-data-am
 uninstall: uninstall-am
 install-am: all-am
 	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
 installcheck: installcheck-am
 install-strip:
 	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
 	  INSTALL_STRIP_FLAG=-s \
 	  `test -z '$(STRIP)' || \
 	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
 mostlyclean-generic:
 clean-generic:
 	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
 distclean-generic:
 	-rm -f Makefile $(CONFIG_CLEAN_FILES)
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 clean-am: clean-checkPROGRAMS clean-generic clean-libLTLIBRARIES \
 	clean-libtool mostlyclean-am
 distclean: distclean-am
 	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
 distclean-am: clean-am distclean-compile distclean-depend \
 	distclean-generic distclean-hdr distclean-libtool \
 	distclean-tags
 dvi: dvi-am
 dvi-am:
 info: info-am
 info-am:
 install-data-am: install-data-local install-includeHEADERS install-man \
 	install-pkgincludeHEADERS
 install-exec-am: install-binSCRIPTS install-libLTLIBRARIES
 install-info: install-info-am
 install-man: install-man3 install-man5
 installcheck-am:
 maintainer-clean: maintainer-clean-am
 	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
 	-rm -rf autom4te.cache
 maintainer-clean-am: distclean-am maintainer-clean-generic
 mostlyclean: mostlyclean-am
 mostlyclean-am: mostlyclean-compile mostlyclean-generic \
 	mostlyclean-libtool
 pdf: pdf-am
 pdf-am:
 ps: ps-am
 ps-am:
 uninstall-am: uninstall-binSCRIPTS uninstall-includeHEADERS \
 	uninstall-info-am uninstall-libLTLIBRARIES uninstall-local \
 	uninstall-man uninstall-pkgincludeHEADERS
 uninstall-man: uninstall-man3 uninstall-man5
 .PHONY: CTAGS GTAGS all all-am check check-TESTS check-am clean \
 	clean-checkPROGRAMS clean-generic clean-libLTLIBRARIES \
 	clean-libtool ctags dist dist-all dist-gzip distcheck distclean \
 	distclean-compile distclean-depend distclean-generic \
 	distclean-hdr distclean-libtool distclean-tags distcleancheck \
 	distdir distuninstallcheck dvi dvi-am info info-am install \
 	install-am install-binSCRIPTS install-data install-data-am \
 	install-data-local install-exec install-exec-am \
 	install-includeHEADERS install-info install-info-am \
 	install-libLTLIBRARIES install-man install-man3 install-man5 \
 	install-pkgincludeHEADERS install-strip installcheck \
 	installcheck-am installdirs maintainer-clean \
 	maintainer-clean-generic mostlyclean mostlyclean-compile \
 	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
 	tags uninstall uninstall-am uninstall-binSCRIPTS \
 	uninstall-includeHEADERS uninstall-info-am \
 	uninstall-libLTLIBRARIES uninstall-local uninstall-man \
 	uninstall-man3 uninstall-man5 uninstall-pkgincludeHEADERS
 libpng.pc:
 	cat ${srcdir}/scripts/libpng.pc.in | \
 	sed -e 's,[@]PREFIX[@],$(prefix),' -e 's,[@]INCLUDEDIR[@],$(includedir),' > libpng.pc
 libpng12.pc: libpng.pc
 	cp libpng.pc libpng12.pc
 install-data-local: libpng.pc libpng12.pc
 	@INSTALL@ -d @PKGCONFIGDIR@
 	@INSTALL_DATA@ libpng.pc @PKGCONFIGDIR@
 	@INSTALL_DATA@ libpng12.pc @PKGCONFIGDIR@
 uninstall-local:
 	rm -f @PKGCONFIGDIR@/libpng.pc
 	rm -f @PKGCONFIGDIR@/libpng12.pc
 libpng-config:
 	( cat ${srcdir}/scripts/libpng-config-head.in; \
 	echo prefix=\"$(prefix)\"; \
 	echo I_opts=\"-I$(includedir)\"; \
 	echo L_opts=\"-L$(libdir)\"; \
 	echo R_opts=\"-Wl,-rpath,$(libdir)\"; \
 	echo libs=\"-lpng12 -lz -lm\"; \
 	cat ${srcdir}/scripts/libpng-config-body.in ) > libpng-config
 libpng12-config: libpng-config
 	cp libpng-config libpng12-config
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT:
--- a/59
+++ b/59
@ -1,4 +1,4 @@
-README for libpng version 1.2.6 - August 15, 2004 (shared library 12.0)
+README for libpng version 1.2.7beta1 - August 26, 2004 (shared library 12.0)
 See the note about version numbers near the top of png.h
 See INSTALL for instructions on how to install libpng.
@ -77,16 +77,15 @@ compression library that is useful for more things than just PNG files.
 You can use zlib as a drop-in replacement for fread() and fwrite() if
 you are so inclined.
-zlib should be available at the same place that libpng is.
+zlib should be available at the same place that libpng is, or at.
-If not, it should be at ftp.uu.net in /graphics/png
+ftp://ftp.info-zip.org/pub/infozip/zlib
 Eventually, it will be at ftp.uu.net in /pub/archiving/zip/zlib
 You may also want a copy of the PNG specification.  It is available
-as an RFC and a W3C Recommendation.  Failing
+as an RFC, a W3C Recommendation, and an ISO/IEC Standard.  You can find
-these resources you can try ftp.uu.net in the /graphics/png directory.
+these at http://www.libpng.org/pub/png/documents/
-This code is currently being archived at ftp.uu.net in the
+This code is currently being archived at libpng.sf.net in the
-/graphics/png directory, and on CompuServe, Lib 20 (PNG SUPPORT)
+[DOWNLOAD] area, and on CompuServe, Lib 20 (PNG SUPPORT)
 at GO GRAPHSUP.  If you can't find it in any of those places,
 e-mail me, and I'll help you find it.
@ -122,10 +121,10 @@ and ...".  If in doubt, send questions to me.  I'll bounce them
 to others, if necessary.
 Please do not send suggestions on how to change PNG.  We have
-been discussing PNG for three years now, and it is official and
+been discussing PNG for nine years now, and it is official and
 finished.  If you have suggestions for libpng, however, I'll
-gladly listen.  Even if your suggestion is not used for version
+gladly listen.  Even if your suggestion is not used immediately,
-1.0, it may be used later.
+it may be used later.
 Files in this distribution:
@ -173,9 +172,9 @@ Files in this distribution:
       visupng      =>  Contains a MSVC workspace for VisualPng
      projects      =>  Contains project files and workspaces for building DLL
       beos             =>  Contains a Beos workspace for building libpng
-       borland          =>  Contains a Borland workspace for building libpng
+       c5builder        =>  Contains a Borland workspace for building libpng
                            and zlib
-       msvc             =>  Contains a Microsoft Visual C++ (MSVC) workspace
+       visualc6         =>  Contains a Microsoft Visual C++ (MSVC) workspace
                            for building libpng and zlib
       netware.txt      =>  Contains instructions for downloading a set of
                            project files for building libpng and zlib on
@ -187,10 +186,10 @@ Files in this distribution:
       descrip.mms      =>  VMS makefile for MMS or MMK
       makefile.std     =>  Generic UNIX makefile (cc, creates static libpng.a)
       makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng12.so.0.1.2.5)
+                            (gcc, creates libpng12.so.0.1.2.7beta1)
-       makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
+       makefile.gcmmx   =>  Linux/ELF makefile
-                            libpng12.so.0.1.2.5, uses assembler code
+                            (gcc, creates libpng12.so.0.1.2.7beta1,
-                            tuned for Intel MMX platform)
+                            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
                            ansi2knr (Requires ansi2knr.c from
@ -205,17 +204,17 @@ Files in this distribution:
       makefile.ibmc    =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
       makefile.intel   =>  Intel C/C++ version 4.0 and later
       libpng.icc       =>  Project file, IBM VisualAge/C++ 4.0 or later
       makefile.macosx  =>  MACOS X Makefile
       makefile.netbsd  =>  NetBSD/cc makefile, PNGGCCRD, makes libpng.so.
       makefile.ne0bsd  =>  NetBSD/cc makefile, PNGGCCRD, makes libpng0.so
       makefile.openbsd =>  OpenBSD makefile
       makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
-       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.5)
+       makefile.sggcc   =>  Silicon Graphics
                            (gcc, creates libpng12.so.0.1.2.7beta1)
       makefile.sunos   =>  Sun makefile
       makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng12.so.0.1.2.5)
+                            (gcc, creates libpng12.so.0.1.2.7beta1)
       makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng12.so.0.1.2.5)
+                            (gcc, creates libpng12.so.0.1.2.7beta1)
       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
@ -244,26 +243,16 @@ Files in this distribution:
       makevms.com      =>  VMS build script
       pngdef.pas       =>  Defines for a png32bd.dll with Borland C++ 4.5
       SCOPTIONS.ppc    =>  Used with smakefile.ppc
      mangle        =>  Directory containing scripts to build libpng12m.so:
       mangle.in        =>  Function-decoration macros added to png.h by the
                            makefiles.
       makefile.linux   =>  Linux/ELF makefile
                            (gcc, creates libpng12m.so.0.1.2.5)
       makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
                            libpng12.so.0m.1.2.5, uses assembler code
                            tuned for Intel MMX platform)
       makefile.sgi     =>  Silicon Graphics (cc, creates libpng12m.so)
       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng12m.so)
 Good luck, and happy coding.
-Glenn Randers-Pehrson
+-Glenn Randers-Pehrson (current maintainer)
- Internet: randeg@alum.rpi.edu
+ Internet: glennrp@users.sourceforge.net
-Andreas Eric Dilger
+-Andreas Eric Dilger (former maintainer, 1996-1997)
 Internet: adilger@enel.ucalgary.ca
 Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/
-Guy Eric Schalnat
+-Guy Eric Schalnat (original author and former maintainer, 1995-1996)
 (formerly of Group 42, Inc)
 Internet: gschal@infinet.com
--- a/4
+++ b/4
@ -1,13 +1,13 @@
   Y2K compliance in libpng:
   =========================
-      August 15, 2004
+      August 26, 2004
      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 1.2.6 are Y2K compliant.  It is my belief that earlier
+      upward through 1.2.7beta1 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/aclocal.m4
+++ b/aclocal.m4
--- a/autogen.sh
+++ b/autogen.sh
@ -1,5 +0,0 @@
 #! /bin/sh
 # a quick hack script to generate necessary files from 
 # auto* tools.
 libtoolize -c -f && aclocal && autoheader && automake --foreign -a -c && autoconf
--- a/config.guess
+++ b/config.guess
--- a/config.h.in
+++ b/config.h.in
@ -1,92 +0,0 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 /* Define to 1 if you have the <fcntl.h> header file. */
 #undef HAVE_FCNTL_H
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 /* Define to 1 if you have the `m' library (-lm). */
 #undef HAVE_LIBM
 /* Define to 1 if you have the `z' library (-lz). */
 #undef HAVE_LIBZ
 /* Define to 1 if your system has a GNU libc compatible `malloc' function, and
   to 0 otherwise. */
 #undef HAVE_MALLOC
 /* Define to 1 if you have the <malloc.h> header file. */
 #undef HAVE_MALLOC_H
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 /* Define to 1 if you have the `memset' function. */
 #undef HAVE_MEMSET
 /* Define to 1 if you have the `pow' function. */
 #undef HAVE_POW
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 /* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 /* Define to 1 if you have the `strrchr' function. */
 #undef HAVE_STRRCHR
 /* Define to 1 if you have the <sys/stat.h> header file. */
 #undef HAVE_SYS_STAT_H
 /* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 /* Name of package */
 #undef PACKAGE
 /* Define to the address where bug reports for this package should be sent. */
 #undef PACKAGE_BUGREPORT
 /* Define to the full name of this package. */
 #undef PACKAGE_NAME
 /* Define to the full name and version of this package. */
 #undef PACKAGE_STRING
 /* Define to the one symbol short name of this package. */
 #undef PACKAGE_TARNAME
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 /* Define to 1 if your <sys/time.h> declares `struct tm'. */
 #undef TM_IN_SYS_TIME
 /* Version number of package */
 #undef VERSION
 /* Define to empty if `const' does not conform to ANSI C. */
 #undef const
 /* Define to rpl_malloc if the replacement function should be used. */
 #undef malloc
 /* Define to `unsigned' if <sys/types.h> does not define. */
 #undef size_t
--- a/config.sub
+++ b/config.sub
--- a/10617
+++ b/10617
--- a/configure.ac
+++ b/configure.ac
@ -1,41 +0,0 @@
 # Process this file with autoconf to produce a configure script.
 m4_define(PNGPKG_VERSION,[1.2.6-automake])
 AC_INIT([libpng], PNGPKG_VERSION, png-implement@ccrc.wustl.edu)
 AM_INIT_AUTOMAKE([libpng], PNGPKG_VERSION)
 AC_CONFIG_SRCDIR([pngget.c])
 AM_CONFIG_HEADER([config.h])
 # Checks for programs.
 AC_PROG_CC
 AC_PROG_MAKE_SET
 AC_PROG_LIBTOOL
 # Checks for header files.
 AC_PATH_X
 AC_HEADER_STDC
 AC_CHECK_HEADERS([fcntl.h malloc.h stdlib.h string.h strings.h unistd.h])
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_TYPE_SIZE_T
 AC_STRUCT_TM
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_FUNC_STRTOD
 AC_CHECK_FUNCS([memset pow strrchr])
 AC_CHECK_FUNC(sqrt, , AC_CHECK_LIB(m, sqrt,, [cannot find sqrt]))
 AC_CHECK_LIB(z, zlibVersion,, AC_ERROR([ZLib not installed]))
 AC_ARG_WITH(pkgconfigdir, AC_HELP_STRING([--with-pkgconfigdir],[Use the specified pkgconfig dir (default is prefix/lib/pkgconfig)]),[PKGCONFIGDIR=${withval}],[PKGCONFIGDIR='${prefix}/lib/pkgconfig'])
 AC_MSG_CHECKING([pkgconfig directory])
 AC_MSG_RESULT([$PKGCONFIGDIR])
 AC_SUBST([PKGCONFIGDIR])
 AC_SUBST(LIBPNG12_VERSION_INFO,0:0:0)
 AC_SUBST(LIBPNG3_VERSION_INFO,3:0:0)
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT
--- a/423
+++ b/423
@ -1,423 +0,0 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 # Copyright 1999, 2000 Free Software Foundation, Inc.
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2, or (at your option)
 # any later version.
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 # 02111-1307, USA.
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  echo "depcomp: Variables source, object and depmode must be set" 1>&2
  exit 1
 fi
 # `libtool' can also be set to `yes' or `no'.
 if test -z "$depfile"; then
   base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
   dir=`echo "$object" | sed 's,/.*$,/,'`
   if test "$dir" = "$object"; then
      dir=
   fi
   # FIXME: should be _deps on DOS.
   depfile="$dir.deps/$base"
 fi
 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
 rm -f "$tmpdepfile"
 # Some modes work just like other modes, but use different flags.  We
 # parameterize here, but still list the modes in the big case below,
 # to make depend.m4 easier to write.  Note that we *cannot* use a case
 # here, because this file can only contain one case statement.
 if test "$depmode" = hp; then
  # HP compiler uses -M and no extra arg.
  gccflag=-M
  depmode=gcc
 fi
 if test "$depmode" = dashXmstdout; then
   # This is just like dashmstdout with a different argument.
   dashmflag=-xM
   depmode=dashmstdout
 fi
 case "$depmode" in
 gcc3)
 ## gcc 3 implements dependency tracking that does exactly what
 ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
 ## it if -MD -MP comes after the -MF stuff.  Hmm.
  "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
  stat=$?
  if test $stat -eq 0; then :
  else
    rm -f "$tmpdepfile"
    exit $stat
  fi
  mv "$tmpdepfile" "$depfile"
  ;;
 gcc)
 ## There are various ways to get dependency output from gcc.  Here's
 ## why we pick this rather obscure method:
 ## - Don't want to use -MD because we'd like the dependencies to end
 ##   up in a subdir.  Having to rename by hand is ugly.
 ##   (We might end up doing this anyway to support other compilers.)
 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
 ##   -MM, not -M (despite what the docs say).
 ## - Using -M directly means running the compiler twice (even worse
 ##   than renaming).
  if test -z "$gccflag"; then
    gccflag=-MD,
  fi
  "$@" -Wp,"$gccflag$tmpdepfile"
  stat=$?
  if test $stat -eq 0; then :
  else
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
 ## The second -e expression handles DOS-style file names with drive letters.
  sed -e 's/^[^:]*: / /' \
      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
 ## This next piece of magic avoids the `deleted header file' problem.
 ## The problem is that when a header file which appears in a .P file
 ## is deleted, the dependency causes make to die (because there is
 ## typically no way to rebuild the header).  We avoid this by adding
 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 ## this for us directly.
  tr ' ' '
 ' < "$tmpdepfile" |
 ## Some versions of gcc put a space before the `:'.  On the theory
 ## that the space means something, we add a space to the output as
 ## well.
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;
 hp)
  # This case exists only to let depend.m4 do its work.  It works by
  # looking at the text of this script.  This case will never be run,
  # since it is checked for above.
  exit 1
  ;;
 sgi)
  if test "$libtool" = yes; then
    "$@" "-Wp,-MDupdate,$tmpdepfile"
  else
    "$@" -MDupdate "$tmpdepfile"
  fi
  stat=$?
  if test $stat -eq 0; then :
  else
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"
  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
    echo "$object : \\" > "$depfile"
    # Clip off the initial element (the dependent).  Don't try to be
    # clever and replace this with sed code, as IRIX sed won't handle
    # lines with more than a fixed number of characters (4096 in
    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
    # the IRIX cc adds comments like `#:fec' to the end of the
    # dependency line.
    tr ' ' '
 ' < "$tmpdepfile" \
    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
    tr '
 ' ' ' >> $depfile
    echo >> $depfile
    # The second pass generates a dummy entry for each header file.
    tr ' ' '
 ' < "$tmpdepfile" \
   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
   >> $depfile
  else
    # The sourcefile does not contain any dependencies, so just
    # store a dummy comment line, to avoid errors with the Makefile
    # "include basename.Plo" scheme.
    echo "#dummy" > "$depfile"
  fi
  rm -f "$tmpdepfile"
  ;;
 aix)
  # The C for AIX Compiler uses -M and outputs the dependencies
  # in a .u file.  This file always lives in the current directory.
  # Also, the AIX compiler puts `$object:' at the start of each line;
  # $object doesn't have directory information.
  stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
  tmpdepfile="$stripped.u"
  outname="$stripped.o"
  if test "$libtool" = yes; then
    "$@" -Wc,-M
  else
    "$@" -M
  fi
  stat=$?
  if test $stat -eq 0; then :
  else
    rm -f "$tmpdepfile"
    exit $stat
  fi
  if test -f "$tmpdepfile"; then
    # Each line is of the form `foo.o: dependent.h'.
    # Do two passes, one to just change these to
    # `$object: dependent.h' and one to simply `dependent.h:'.
    sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
    sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
  else
    # The sourcefile does not contain any dependencies, so just
    # store a dummy comment line, to avoid errors with the Makefile
    # "include basename.Plo" scheme.
    echo "#dummy" > "$depfile"
  fi
  rm -f "$tmpdepfile"
  ;;
 tru64)
   # The Tru64 compiler uses -MD to generate dependencies as a side
   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
   # dependencies in `foo.d' instead, so we check for that too.
   # Subdirectories are respected.
   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
   test "x$dir" = "x$object" && dir=
   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
   if test "$libtool" = yes; then
      tmpdepfile1="$dir.libs/$base.lo.d"
      tmpdepfile2="$dir.libs/$base.d"
      "$@" -Wc,-MD
   else
      tmpdepfile1="$dir$base.o.d"
      tmpdepfile2="$dir$base.d"
      "$@" -MD
   fi
   stat=$?
   if test $stat -eq 0; then :
   else
      rm -f "$tmpdepfile1" "$tmpdepfile2"
      exit $stat
   fi
   if test -f "$tmpdepfile1"; then
      tmpdepfile="$tmpdepfile1"
   else
      tmpdepfile="$tmpdepfile2"
   fi
   if test -f "$tmpdepfile"; then
      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
      # That's a space and a tab in the [].
      sed -e 's,^.*\.[a-z]*:[ 	]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
   else
      echo "#dummy" > "$depfile"
   fi
   rm -f "$tmpdepfile"
   ;;
 #nosideeffect)
  # This comment above is used by automake to tell side-effect
  # dependency tracking mechanisms from slower ones.
 dashmstdout)
  # Important note: in order to support this mode, a compiler *must*
  # always write the proprocessed file to stdout, regardless of -o.
  "$@" || exit $?
  # Remove the call to Libtool.
  if test "$libtool" = yes; then
    while test $1 != '--mode=compile'; do
      shift
    done
    shift
  fi
  # Remove `-o $object'.  We will use -o /dev/null later,
  # however we can't do the remplacement now because
  # `-o $object' might simply not be used
  IFS=" "
  for arg
  do
    case $arg in
    -o)
      shift
      ;;
    $object)
      shift
      ;;
    *)
      set fnord "$@" "$arg"
      shift # fnord
      shift # $arg
      ;;
    esac
  done
  test -z "$dashmflag" && dashmflag=-M
  "$@" -o /dev/null $dashmflag | sed 's:^[^:]*\:[ 	]*:'"$object"'\: :' > "$tmpdepfile"
  rm -f "$depfile"
  cat < "$tmpdepfile" > "$depfile"
  tr ' ' '
 ' < "$tmpdepfile" | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;
 dashXmstdout)
  # This case only exists to satisfy depend.m4.  It is never actually
  # run, as this mode is specially recognized in the preamble.
  exit 1
  ;;
 makedepend)
  "$@" || exit $?
  # X makedepend
  shift
  cleared=no
  for arg in "$@"; do
    case $cleared in
    no)
      set ""; shift
      cleared=yes ;;
    esac
    case "$arg" in
    -D*|-I*)
      set fnord "$@" "$arg"; shift ;;
    -*)
      ;;
    *)
      set fnord "$@" "$arg"; shift ;;
    esac
  done
  obj_suffix="`echo $object | sed 's/^.*\././'`"
  touch "$tmpdepfile"
  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
  rm -f "$depfile"
  cat < "$tmpdepfile" > "$depfile"
  sed '1,2d' "$tmpdepfile" | tr ' ' '
 ' | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile" "$tmpdepfile".bak
  ;;
 cpp)
  # Important note: in order to support this mode, a compiler *must*
  # always write the proprocessed file to stdout.
  "$@" || exit $?
  # Remove the call to Libtool.
  if test "$libtool" = yes; then
    while test $1 != '--mode=compile'; do
      shift
    done
    shift
  fi
  # Remove `-o $object'.
  IFS=" "
  for arg
  do
    case $arg in
    -o)
      shift
      ;;
    $object)
      shift
      ;;
    *)
      set fnord "$@" "$arg"
      shift # fnord
      shift # $arg
      ;;
    esac
  done
  "$@" -E |
    sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
    sed '$ s: \\$::' > "$tmpdepfile"
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  cat < "$tmpdepfile" >> "$depfile"
  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;
 msvisualcpp)
  # Important note: in order to support this mode, a compiler *must*
  # always write the proprocessed file to stdout, regardless of -o,
  # because we must use -o when running libtool.
  "$@" || exit $?
  IFS=" "
  for arg
  do
    case "$arg" in
    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 	set fnord "$@"
 	shift
 	shift
 	;;
    *)
 	set fnord "$@" "$arg"
 	shift
 	shift
 	;;
    esac
  done
  "$@" -E |
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
  echo "	" >> "$depfile"
  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;
 none)
  exec "$@"
  ;;
 *)
  echo "Unknown depmode $depmode" 1>&2
  exit 1
  ;;
 esac
 exit 0
--- a/276
+++ b/276
@ -1,276 +0,0 @@
 #!/bin/sh
 #
 # install - install a program, script, or datafile
 # This comes from X11R5 (mit/util/scripts/install.sh).
 #
 # Copyright 1991 by the Massachusetts Institute of Technology
 #
 # Permission to use, copy, modify, distribute, and sell this software and its
 # documentation for any purpose is hereby granted without fee, provided that
 # the above copyright notice appear in all copies and that both that
 # copyright notice and this permission notice appear in supporting
 # documentation, and that the name of M.I.T. not be used in advertising or
 # publicity pertaining to distribution of the software without specific,
 # written prior permission.  M.I.T. makes no representations about the
 # suitability of this software for any purpose.  It is provided "as is"
 # without express or implied warranty.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent
 # `make' implicit rules from creating a file called install from it
 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
 # from scratch.  It can only install one file at a time, a restriction
 # shared with many OS's install programs.
 # set DOITPROG to echo to test this script
 # Don't use :- since 4.3BSD and earlier shells don't like it.
 doit="${DOITPROG-}"
 # put in absolute paths if you don't have them in your path; or use env. vars.
 mvprog="${MVPROG-mv}"
 cpprog="${CPPROG-cp}"
 chmodprog="${CHMODPROG-chmod}"
 chownprog="${CHOWNPROG-chown}"
 chgrpprog="${CHGRPPROG-chgrp}"
 stripprog="${STRIPPROG-strip}"
 rmprog="${RMPROG-rm}"
 mkdirprog="${MKDIRPROG-mkdir}"
 transformbasename=""
 transform_arg=""
 instcmd="$mvprog"
 chmodcmd="$chmodprog 0755"
 chowncmd=""
 chgrpcmd=""
 stripcmd=""
 rmcmd="$rmprog -f"
 mvcmd="$mvprog"
 src=""
 dst=""
 dir_arg=""
 while [ x"$1" != x ]; do
    case $1 in
 	-c) instcmd=$cpprog
 	    shift
 	    continue;;
 	-d) dir_arg=true
 	    shift
 	    continue;;
 	-m) chmodcmd="$chmodprog $2"
 	    shift
 	    shift
 	    continue;;
 	-o) chowncmd="$chownprog $2"
 	    shift
 	    shift
 	    continue;;
 	-g) chgrpcmd="$chgrpprog $2"
 	    shift
 	    shift
 	    continue;;
 	-s) stripcmd=$stripprog
 	    shift
 	    continue;;
 	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
 	    shift
 	    continue;;
 	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
 	    shift
 	    continue;;
 	*)  if [ x"$src" = x ]
 	    then
 		src=$1
 	    else
 		# this colon is to work around a 386BSD /bin/sh bug
 		:
 		dst=$1
 	    fi
 	    shift
 	    continue;;
    esac
 done
 if [ x"$src" = x ]
 then
 	echo "$0: no input file specified" >&2
 	exit 1
 else
 	:
 fi
 if [ x"$dir_arg" != x ]; then
 	dst=$src
 	src=""
 	if [ -d "$dst" ]; then
 		instcmd=:
 		chmodcmd=""
 	else
 		instcmd=$mkdirprog
 	fi
 else
 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 # might cause directories to be created, which would be especially bad
 # if $src (and thus $dsttmp) contains '*'.
 	if [ -f "$src" ] || [ -d "$src" ]
 	then
 		:
 	else
 		echo "$0: $src does not exist" >&2
 		exit 1
 	fi
 	if [ x"$dst" = x ]
 	then
 		echo "$0: no destination specified" >&2
 		exit 1
 	else
 		:
 	fi
 # If destination is a directory, append the input filename; if your system
 # does not like double slashes in filenames, you may need to add some logic
 	if [ -d "$dst" ]
 	then
 		dst=$dst/`basename "$src"`
 	else
 		:
 	fi
 fi
 ## this sed command emulates the dirname command
 dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
 # Make sure that the destination directory exists.
 #  this part is taken from Noah Friedman's mkinstalldirs script
 # Skip lots of stat calls in the usual case.
 if [ ! -d "$dstdir" ]; then
 defaultIFS='
 	'
 IFS="${IFS-$defaultIFS}"
 oIFS=$IFS
 # Some sh's can't handle IFS=/ for some reason.
 IFS='%'
 set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
 IFS=$oIFS
 pathcomp=''
 while [ $# -ne 0 ] ; do
 	pathcomp=$pathcomp$1
 	shift
 	if [ ! -d "$pathcomp" ] ;
        then
 		$mkdirprog "$pathcomp"
 	else
 		:
 	fi
 	pathcomp=$pathcomp/
 done
 fi
 if [ x"$dir_arg" != x ]
 then
 	$doit $instcmd "$dst" &&
 	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
 	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
 	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
 	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
 else
 # If we're going to rename the final executable, determine the name now.
 	if [ x"$transformarg" = x ]
 	then
 		dstfile=`basename "$dst"`
 	else
 		dstfile=`basename "$dst" $transformbasename |
 			sed $transformarg`$transformbasename
 	fi
 # don't allow the sed command to completely eliminate the filename
 	if [ x"$dstfile" = x ]
 	then
 		dstfile=`basename "$dst"`
 	else
 		:
 	fi
 # Make a couple of temp file names in the proper directory.
 	dsttmp=$dstdir/#inst.$$#
 	rmtmp=$dstdir/#rm.$$#
 # Trap to clean up temp files at exit.
 	trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
 	trap '(exit $?); exit' 1 2 13 15
 # Move or copy the file name to the temp name
 	$doit $instcmd "$src" "$dsttmp" &&
 # and set any options; do chmod last to preserve setuid bits
 # If any of these fail, we abort the whole thing.  If we want to
 # ignore errors from any of these, just make sure not to ignore
 # errors from the above "$doit $instcmd $src $dsttmp" command.
 	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
 	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
 	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
 	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
 # Now remove or move aside any old file at destination location.  We try this
 # two ways since rm can't unlink itself on some systems and the destination
 # file might be busy for other reasons.  In this case, the final cleanup
 # might fail but the new file should still install successfully.
 {
 	if [ -f "$dstdir/$dstfile" ]
 	then
 		$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
 		$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
 		{
 		  echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
 		  (exit 1); exit
 		}
 	else
 		:
 	fi
 } &&
 # Now rename the file to the real destination.
 	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
 fi &&
 # The final little trick to "correctly" pass the exit status to the exit trap.
 {
 	(exit 0); exit
 }
--- a/libpng.3
+++ b/libpng.3
@ -1,6 +1,6 @@
-.TH LIBPNG 3 "August 15, 2004"
+.TH LIBPNG 3 "August 26, 2004"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta1
 .SH SYNOPSIS
 \fI\fB
@ -773,7 +773,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
- libpng version 1.2.6 - August 15, 2004
+ libpng version 1.2.7beta1 - August 26, 2004
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp@users.sourceforge.net>
 Copyright (c) 1998-2004 Glenn Randers-Pehrson
@ -810,19 +810,23 @@ 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.
-The PNG-1.2 specification is available at <http://www.libpng.org/pub/png>
+The PNG specification (second edition), November 2003, is available as
-and at <ftp://ftp.uu.net/graphics/png/documents/>.
+a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2003 (E)) at
 <http://www.w3.org/TR/2003/REC-PNG-20031110/
 The W3C and ISO documents have identical technical content.
 The PNG-1.2 specification is available at
 <http://www.libpng.org/pub/png/documents/>
 The PNG-1.0 specification is available
-as RFC 2083 <ftp://ftp.uu.net/graphics/png/documents/> and as a
+as RFC 2083 <http://www.libpng.org/pub/png/documents/> and as a
 W3C Recommendation <http://www.w3.org/TR/REC.png.html>. Some
 additional chunks are described in the special-purpose public chunks
-documents at <ftp://ftp.uu.net/graphics/png/documents/>.
+documents at <http://www.libpng.org/pub/png/documents/>.
 Other information
 about PNG, and the latest version of libpng, can be found at the PNG home
-page, <http://www.libpng.org/pub/png/>
+page, <http://www.libpng.org/pub/png/>.
 and at <ftp://ftp.uu.net/graphics/png/>.
 Most users will not have to modify the library significantly; advanced
 users may want to modify it more.  All attempts were made to make it as
@ -855,7 +859,6 @@ same instance of a structure.  Note: thread safety may be defeated
 by use of some of the MMX assembler code in pnggccrd.c, which is only
 compiled when the user defines PNG_THREAD_UNSAFE_OK.
 .SH II. Structures
 There are two main structures that are important to libpng, png_struct
@ -1170,6 +1173,9 @@ then png_read_image(), and finally png_read_end().
 (The final parameter of this call is not yet used.  Someday it might point
 to transformation parameters required by some future input transform.)
 You must use png_transforms and not call any png_set_transform() functions
 when you use png_read_png().
 After you have called png_read_png(), you can retrieve the image data
 with
@ -2770,6 +2776,9 @@ then png_write_image(), and finally png_write_end().
 (The final parameter of this call is not yet used.  Someday it might point
 to transformation parameters required by some future output transform.)
 You must use png_transforms and not call any png_set_transform() functions
 when you use png_write_png().
 .SS The low-level write interface
 If you are going the low-level route instead, you are now ready to
@ -3581,7 +3590,8 @@ this version of libpng, but if you insert some they will be printed.
 %-%of optimized features, see contrib/gregbook/readpng2.c in the libpng
 %-%source-code distribution.
 %-%
-.SH VI.  MNG support
+%-%.SH VII.  MNG support
 %+%.SH 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.
@ -3606,7 +3616,8 @@ 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.
-.SH VII.  Changes to Libpng from version 0.88
+%-%.SH VIII.  Changes to Libpng from version 0.88
 %+%.SH 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
@ -3655,15 +3666,16 @@ application:
   png_uint_32 application_vn = PNG_LIBPNG_VER;
-.SH VII. Y2K Compliance in libpng
+%-%.SH IX. Y2K Compliance in libpng
 %+%.SH VIII. Y2K Compliance in libpng
-August 15, 2004
+August 26, 2004
 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 1.2.6 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.7beta1 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
@ -3806,6 +3818,7 @@ the first widely used release:
 1.2.6rc1-5          13    10206  12.so.0.1.2.6rc1-5
 1.0.16              10    10016  10.so.0.1.0.16
 1.2.6               13    10206  12.so.0.1.2.6
 1.2.7beta1          13    10207  12.so.0.1.2.7beta1
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@ -3822,7 +3835,7 @@ libpngpf(3), png(5)
 .LP
 .IR libpng :
 .IP
-ftp://ftp.uu.net/graphics/png
+http://libpng.sourceforge.net (follow the [DOWNLOAD] link)
 http://www.libpng.org/pub/png
 .LP
@ -3832,8 +3845,6 @@ http://www.libpng.org/pub/png
 .I libpng
 or at
 .br
 ftp://ftp.uu.net/pub/archiving/zip/zlib
 .br
 ftp://ftp.info-zip.org/pub/infozip/zlib
 .LP
@ -3863,7 +3874,7 @@ possible without all of you.
 Thanks to Frank J. T. Wojcik for helping with the documentation.
-Libpng version 1.2.6 - August 15, 2004:
+Libpng version 1.2.7beta1 - August 26, 2004:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp@users.sourceforge.net).
@ -3880,7 +3891,7 @@ included in the libpng distribution, the latter shall prevail.)
 If you modify libpng you may insert additional notices immediately following
 this sentence.
-libpng version 1.2.6, August 15, 2004, is
+libpng version 1.2.6, August 26, 2004, is
 Copyright (c) 2004 Glenn Randers-Pehrson, and is
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@ -3979,7 +3990,7 @@ certification mark of the Open Source Initiative.
 Glenn Randers-Pehrson
 glennrp@users.sourceforge.net
-August 15, 2004
+August 26, 2004
 .\" end of man page
--- a/libpng.txt
+++ b/libpng.txt
@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
- libpng version 1.2.6 - August 15, 2004
+ libpng version 1.2.7beta1 - August 26, 2004
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp@users.sourceforge.net>
 Copyright (c) 1998-2004 Glenn Randers-Pehrson
@ -37,19 +37,23 @@ 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.
-The PNG-1.2 specification is available at <http://www.libpng.org/pub/png>
+The PNG specification (second edition), November 2003, is available as
-and at <ftp://ftp.uu.net/graphics/png/documents/>.
+a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2003 (E)) at
 <http://www.w3.org/TR/2003/REC-PNG-20031110/
 The W3C and ISO documents have identical technical content.
 The PNG-1.2 specification is available at
 <http://www.libpng.org/pub/png/documents/>
 The PNG-1.0 specification is available
-as RFC 2083 <ftp://ftp.uu.net/graphics/png/documents/> and as a
+as RFC 2083 <http://www.libpng.org/pub/png/documents/> and as a
 W3C Recommendation <http://www.w3.org/TR/REC.png.html>. Some
 additional chunks are described in the special-purpose public chunks
-documents at <ftp://ftp.uu.net/graphics/png/documents/>.
+documents at <http://www.libpng.org/pub/png/documents/>.
 Other information
 about PNG, and the latest version of libpng, can be found at the PNG home
-page, <http://www.libpng.org/pub/png/>
+page, <http://www.libpng.org/pub/png/>.
 and at <ftp://ftp.uu.net/graphics/png/>.
 Most users will not have to modify the library significantly; advanced
 users may want to modify it more.  All attempts were made to make it as
@ -82,7 +86,6 @@ same instance of a structure.  Note: thread safety may be defeated
 by use of some of the MMX assembler code in pnggccrd.c, which is only
 compiled when the user defines PNG_THREAD_UNSAFE_OK.
 II. Structures
 There are two main structures that are important to libpng, png_struct
@ -397,6 +400,9 @@ then png_read_image(), and finally png_read_end().
 (The final parameter of this call is not yet used.  Someday it might point
 to transformation parameters required by some future input transform.)
 You must use png_transforms and not call any png_set_transform() functions
 when you use png_read_png().
 After you have called png_read_png(), you can retrieve the image data
 with
@ -1997,6 +2003,9 @@ then png_write_image(), and finally png_write_end().
 (The final parameter of this call is not yet used.  Someday it might point
 to transformation parameters required by some future output transform.)
 You must use png_transforms and not call any png_set_transform() functions
 when you use png_write_png().
 The low-level write interface
 If you are going the low-level route instead, you are now ready to
@ -2808,7 +2817,7 @@ For more extensive examples of runtime querying, enabling and disabling
 of optimized features, see contrib/gregbook/readpng2.c in the libpng
 source-code distribution.
-VI.  MNG support
+VII.  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.
@ -2833,7 +2842,7 @@ 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.
-VII.  Changes to Libpng from version 0.88
+VIII.  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
@ -2882,15 +2891,15 @@ application:
   png_uint_32 application_vn = PNG_LIBPNG_VER;
-VII. Y2K Compliance in libpng
+IX. Y2K Compliance in libpng
-August 15, 2004
+August 26, 2004
 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 1.2.6 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.7beta1 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
@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "August 15, 2004"
+.TH LIBPNGPF 3 "August 26, 2004"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta1
 (private functions)
 .SH SYNOPSIS
 \fB\fB#include <png.h>\fP\fP
--- a/ltmain.sh
+++ b/ltmain.sh
--- a/336
+++ b/336
@ -1,336 +0,0 @@
 #! /bin/sh
 # Common stub for a few missing GNU programs while installing.
 # Copyright (C) 1996, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
 # Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2, or (at your option)
 # any later version.
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 # 02111-1307, USA.
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 if test $# -eq 0; then
  echo 1>&2 "Try \`$0 --help' for more information"
  exit 1
 fi
 run=:
 # In the cases where this matters, `missing' is being run in the
 # srcdir already.
 if test -f configure.ac; then
  configure_ac=configure.ac
 else
  configure_ac=configure.in
 fi
 case "$1" in
 --run)
  # Try to run requested program, and just exit if it succeeds.
  run=
  shift
  "$@" && exit 0
  ;;
 esac
 # If it does not exist, or fails to run (possibly an outdated version),
 # try to emulate it.
 case "$1" in
  -h|--h|--he|--hel|--help)
    echo "\
 $0 [OPTION]... PROGRAM [ARGUMENT]...
 Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
 error status if there is no known handling for PROGRAM.
 Options:
  -h, --help      display this help and exit
  -v, --version   output version information and exit
  --run           try to run the given command, and emulate it if it fails
 Supported PROGRAM values:
  aclocal      touch file \`aclocal.m4'
  autoconf     touch file \`configure'
  autoheader   touch file \`config.h.in'
  automake     touch all \`Makefile.in' files
  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
  flex         create \`lex.yy.c', if possible, from existing .c
  help2man     touch the output file
  lex          create \`lex.yy.c', if possible, from existing .c
  makeinfo     touch the output file
  tar          try tar, gnutar, gtar, then tar without non-portable flags
  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]"
    ;;
  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
    echo "missing 0.4 - GNU automake"
    ;;
  -*)
    echo 1>&2 "$0: Unknown \`$1' option"
    echo 1>&2 "Try \`$0 --help' for more information"
    exit 1
    ;;
  aclocal*)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
         to install the \`Automake' and \`Perl' packages.  Grab them from
         any GNU archive site."
    touch aclocal.m4
    ;;
  autoconf)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`${configure_ac}'.  You might want to install the
         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
         archive site."
    touch configure
    ;;
  autoheader)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
         from any GNU archive site."
    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
    test -z "$files" && files="config.h"
    touch_files=
    for f in $files; do
      case "$f" in
      *:*) touch_files="$touch_files "`echo "$f" |
 				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
      *) touch_files="$touch_files $f.in";;
      esac
    done
    touch $touch_files
    ;;
  automake*)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
         You might want to install the \`Automake' and \`Perl' packages.
         Grab them from any GNU archive site."
    find . -type f -name Makefile.am -print |
 	   sed 's/\.am$/.in/' |
 	   while read f; do touch "$f"; done
    ;;
  autom4te)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is needed, and you do not seem to have it handy on your
         system.  You might have modified some files without having the
         proper tools for further handling them.
         You can get \`$1Help2man' as part of \`Autoconf' from any GNU
         archive site."
    file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
    test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
    if test -f "$file"; then
 	touch $file
    else
 	test -z "$file" || exec >$file
 	echo "#! /bin/sh"
 	echo "# Created by GNU Automake missing as a replacement of"
 	echo "#  $ $@"
 	echo "exit 0"
 	chmod +x $file
 	exit 1
    fi
    ;;
  bison|yacc)
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified a \`.y' file.  You may need the \`Bison' package
         in order for those modifications to take effect.  You can get
         \`Bison' from any GNU archive site."
    rm -f y.tab.c y.tab.h
    if [ $# -ne 1 ]; then
        eval LASTARG="\${$#}"
 	case "$LASTARG" in
 	*.y)
 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
 	    if [ -f "$SRCFILE" ]; then
 	         cp "$SRCFILE" y.tab.c
 	    fi
 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
 	    if [ -f "$SRCFILE" ]; then
 	         cp "$SRCFILE" y.tab.h
 	    fi
 	  ;;
 	esac
    fi
    if [ ! -f y.tab.h ]; then
 	echo >y.tab.h
    fi
    if [ ! -f y.tab.c ]; then
 	echo 'main() { return 0; }' >y.tab.c
    fi
    ;;
  lex|flex)
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified a \`.l' file.  You may need the \`Flex' package
         in order for those modifications to take effect.  You can get
         \`Flex' from any GNU archive site."
    rm -f lex.yy.c
    if [ $# -ne 1 ]; then
        eval LASTARG="\${$#}"
 	case "$LASTARG" in
 	*.l)
 	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
 	    if [ -f "$SRCFILE" ]; then
 	         cp "$SRCFILE" lex.yy.c
 	    fi
 	  ;;
 	esac
    fi
    if [ ! -f lex.yy.c ]; then
 	echo 'main() { return 0; }' >lex.yy.c
    fi
    ;;
  help2man)
    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
       # We have it, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
 	 you modified a dependency of a manual page.  You may need the
 	 \`Help2man' package in order for those modifications to take
 	 effect.  You can get \`Help2man' from any GNU archive site."
    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
    if test -z "$file"; then
 	file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
    fi
    if [ -f "$file" ]; then
 	touch $file
    else
 	test -z "$file" || exec >$file
 	echo ".ab help2man is required to generate this page"
 	exit 1
    fi
    ;;
  makeinfo)
    if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then
       # We have makeinfo, but it failed.
       exit 1
    fi
    echo 1>&2 "\
 WARNING: \`$1' is missing on your system.  You should only need it if
         you modified a \`.texi' or \`.texinfo' file, or any other file
         indirectly affecting the aspect of the manual.  The spurious
         call might also be the consequence of using a buggy \`make' (AIX,
         DU, IRIX).  You might want to install the \`Texinfo' package or
         the \`GNU make' package.  Grab either from any GNU archive site."
    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
    if test -z "$file"; then
      file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
      file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
    fi
    touch $file
    ;;
  tar)
    shift
    if test -n "$run"; then
      echo 1>&2 "ERROR: \`tar' requires --run"
      exit 1
    fi
    # We have already tried tar in the generic part.
    # Look for gnutar/gtar before invocation to avoid ugly error
    # messages.
    if (gnutar --version > /dev/null 2>&1); then
       gnutar "$@" && exit 0
    fi
    if (gtar --version > /dev/null 2>&1); then
       gtar "$@" && exit 0
    fi
    firstarg="$1"
    if shift; then
 	case "$firstarg" in
 	*o*)
 	    firstarg=`echo "$firstarg" | sed s/o//`
 	    tar "$firstarg" "$@" && exit 0
 	    ;;
 	esac
 	case "$firstarg" in
 	*h*)
 	    firstarg=`echo "$firstarg" | sed s/h//`
 	    tar "$firstarg" "$@" && exit 0
 	    ;;
 	esac
    fi
    echo 1>&2 "\
 WARNING: I can't seem to be able to run \`tar' with the given arguments.
         You may want to install GNU tar or Free paxutils, or check the
         command line arguments."
    exit 1
    ;;
  *)
    echo 1>&2 "\
 WARNING: \`$1' is needed, and you do not seem to have it handy on your
         system.  You might have modified some files without having the
         proper tools for further handling them.  Check the \`README' file,
         it often tells you about the needed prerequirements for installing
         this package.  You may also peek at any GNU archive site, in case
         some other package would contain this missing \`$1' program."
    exit 1
    ;;
 esac
 exit 0
--- a/111
+++ b/111
@ -1,111 +0,0 @@
 #! /bin/sh
 # mkinstalldirs --- make directory hierarchy
 # Author: Noah Friedman <friedman@prep.ai.mit.edu>
 # Created: 1993-05-16
 # Public domain
 errstatus=0
 dirmode=""
 usage="\
 Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..."
 # process command line arguments
 while test $# -gt 0 ; do
  case $1 in
    -h | --help | --h*)         # -h for help
      echo "$usage" 1>&2
      exit 0
      ;;
    -m)                         # -m PERM arg
      shift
      test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
      dirmode=$1
      shift
      ;;
    --)                         # stop option processing
      shift
      break
      ;;
    -*)                         # unknown option
      echo "$usage" 1>&2
      exit 1
      ;;
    *)                          # first non-opt arg
      break
      ;;
  esac
 done
 for file
 do
  if test -d "$file"; then
    shift
  else
    break
  fi
 done
 case $# in
  0) exit 0 ;;
 esac
 case $dirmode in
  '')
    if mkdir -p -- . 2>/dev/null; then
      echo "mkdir -p -- $*"
      exec mkdir -p -- "$@"
    fi
    ;;
  *)
    if mkdir -m "$dirmode" -p -- . 2>/dev/null; then
      echo "mkdir -m $dirmode -p -- $*"
      exec mkdir -m "$dirmode" -p -- "$@"
    fi
    ;;
 esac
 for file
 do
  set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
  shift
  pathcomp=
  for d
  do
    pathcomp="$pathcomp$d"
    case $pathcomp in
      -*) pathcomp=./$pathcomp ;;
    esac
    if test ! -d "$pathcomp"; then
      echo "mkdir $pathcomp"
      mkdir "$pathcomp" || lasterr=$?
      if test ! -d "$pathcomp"; then
  	errstatus=$lasterr
      else
  	if test ! -z "$dirmode"; then
 	  echo "chmod $dirmode $pathcomp"
    	  lasterr=""
  	  chmod "$dirmode" "$pathcomp" || lasterr=$?
  	  if test ! -z "$lasterr"; then
  	    errstatus=$lasterr
  	  fi
  	fi
      fi
    fi
    pathcomp="$pathcomp/"
  done
 done
 exit $errstatus
 # Local Variables:
 # mode: shell-script
 # sh-indentation: 2
 # End:
 # mkinstalldirs ends here
--- a/png.5
+++ b/png.5
@ -1,4 +1,4 @@
-.TH PNG 5 "August 15, 2004"
+.TH PNG 5 "August 26, 2004"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
@ -20,12 +20,14 @@ platforms.
 .SH "SEE ALSO"
 .IR libpng(3), zlib(3), deflate(5), and zlib(5)
 .LP
 PNG specification (second edition), November 2003:
 .IP
 .br
  <http://www.w3.org/TR/2003/REC-PNG-20031110/
 PNG 1.2 specification, July 1999:
 .IP
 .br
 http://www.libpng.org/pub/png
 .br
 or ftp://ftp.uu.net/graphics/png/documents
 .LP
 PNG 1.0 specification, October 1996:
 .IP
@ -41,6 +43,11 @@ http://www.w3.org/TR/REC-png.html
 .SH AUTHORS
 This man page: Glenn Randers-Pehrson
 .LP
 Portable Network Graphics (PNG) Specification (Second Edition)
 Information technology - Computer graphics and image processing -
 Portable Network Graphics (PNG): Functional specification.
 ISO/IEC 15948:2003 (E) (November 10, 2003): David Duce and others.
 .LP
 Portable Network Graphics (PNG) Specification Version 1.2 (July 8, 1999):
 Glenn Randers-Pehrson and others (png-list@ccrc.wustl.edu).
 .LP
@ -50,6 +57,13 @@ Thomas Boutell and others (png-list@ccrc.wustl.edu).
 .SH COPYRIGHT NOTICE
 .LP
 This man page is Copyright (c) 1998-2004 Glenn Randers-Pehrson.  See png.h
 for conditions of use and distribution.
 .LP
 The PNG Specification (Second Edition) is
 Copyright (c) 2003 W3C. (MIT, ERCIM, Keio), All Rights Reserved.
 .LP
 The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson.
 See the specification for conditions of use and distribution.
 .LP
--- a/png.c
+++ b/png.c
@ -1,7 +1,7 @@
 /* png.c - location for general purpose libpng functions
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -13,7 +13,7 @@
 #include "png.h"
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_6 Your_png_h_is_not_version_1_2_6;
+typedef version_1_2_7beta1 Your_png_h_is_not_version_1_2_7beta1;
 /* Version information for C files.  This had better match the version
 * string defined in png.h.  */
@ -678,7 +678,7 @@ png_charp PNGAPI
 png_get_copyright(png_structp png_ptr)
 {
   if (&png_ptr != NULL)  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) "\n libpng version 1.2.6 - August 15, 2004\n\
+   return ((png_charp) "\n libpng version 1.2.7beta1 - August 26, 2004\n\
   Copyright (c) 1998-2004 Glenn Randers-Pehrson\n\
   Copyright (c) 1996-1997 Andreas Dilger\n\
   Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
--- a/png.h
+++ b/png.h
@ -1,6 +1,6 @@
 /* png.h - header file for PNG reference library
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * Copyright (c) 1998-2004 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.)
@ -8,7 +8,7 @@
 * Authors and maintainers:
 *  libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
 *  libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *  libpng versions 0.97, January 1998, through 1.2.6 - August 15, 2004: Glenn
+ *  libpng versions 0.97, January 1998, through 1.2.7beta1 - August 26, 2004: Glenn
 *  See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@ -101,6 +101,7 @@
 *    1.2.6beta1-4            13    10206  12.so.0.1.2.6beta1-4
 *    1.0.16                  10    10016  10.so.0.1.0.16
 *    1.2.6                   13    10206  12.so.0.1.2.6
 *    1.2.7beta1              13    10207  12.so.0.1.2.7beta1
 *
 *    Henceforth the source version will match the shared-library major
 *    and minor numbers; the shared-library major version number will be
@ -120,8 +121,8 @@
 *    in binary compatibility (e.g., when a new feature is added).
 *
 * See libpng.txt or libpng.3 for more information.  The PNG specification
- * is available as RFC 2083 <ftp://ftp.uu.net/graphics/png/documents/>
+ * is available as a W3C Recommendation and as an ISO Specification,
- * and as a W3C Recommendation <http://www.w3.org/TR/REC.png.html>
+ * <http://www.w3.org/TR/2003/REC-PNG-20031110/
 */
 /*
@ -130,17 +131,17 @@
 * If you modify libpng you may insert additional notices immediately following
 * this sentence.
 *
- * libpng version 1.2.6, August 15, 2004, is
+ * libpng versions 1.2.6, August 15, 2004, through 1.2.7beta1, August 26, 2004, are
- * Copyright (c) 2004 Glenn Randers-Pehrson, and is
+ * Copyright (c) 2004 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
+ * with the following individual added to the list of Contributing Authors:
 *
 *    Cosmin Truta
 *
- * libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
+ * libpng versions 1.0.7, July 1, 2000, through 1.2.5, October 3, 2002, are
 * Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
 * distributed according to the same disclaimer and license as libpng-1.0.6
- * with the following individuals added to the list of Contributing Authors
+ * with the following individuals added to the list of Contributing Authors:
 *
 *    Simon-Pierre Cadieux
 *    Eric S. Raymond
@ -156,8 +157,8 @@
 *    the user.
 *
 * libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson, and are
- * Distributed according to the same disclaimer and license as libpng-0.96,
+ * distributed according to the same disclaimer and license as libpng-0.96,
 * with the following individuals added to the list of Contributing Authors:
 *
 *    Tom Lane
@ -242,13 +243,13 @@
 * Y2K compliance in libpng:
 * =========================
 *
- *    August 15, 2004
+ *    August 26, 2004
 *
 *    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 1.2.6 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.2.7beta1 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
@ -304,9 +305,9 @@
 */
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.2.6"
+#define PNG_LIBPNG_VER_STRING "1.2.7beta1"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.6 - August 15, 2004 (header)\n"
+   " libpng version 1.2.7beta1 - August 26, 2004 (header)\n"
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  %DLLNUM%
@ -314,11 +315,11 @@
 /* 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 6
+#define PNG_LIBPNG_VER_RELEASE 7
 /* This should match the numeric part of the final component of
 * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
-#define PNG_LIBPNG_VER_BUILD  0
+#define PNG_LIBPNG_VER_BUILD  1
 #define PNG_LIBPNG_BUILD_ALPHA    1
 #define PNG_LIBPNG_BUILD_BETA     2
@ -326,14 +327,14 @@
 #define PNG_LIBPNG_BUILD_STABLE   4
 #define PNG_LIBPNG_BUILD_TYPEMASK 7
 #define PNG_LIBPNG_BUILD_PATCH    8 /* Can be OR'ed with STABLE only */
-#define PNG_LIBPNG_BUILD_TYPE 4
+#define PNG_LIBPNG_BUILD_TYPE 2
 /* 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 10206 /* 1.2.6 */
+#define PNG_LIBPNG_VER 10207 /* 1.2.7 */
 #ifndef PNG_VERSION_INFO_ONLY
@ -1310,7 +1311,7 @@ struct png_struct_def
 /* This triggers a compiler error in png.c, if png.c and png.h
 * do not agree upon the version number.
 */
-typedef png_structp version_1_2_6;
+typedef png_structp version_1_2_7beta1;
 typedef png_struct FAR * FAR * png_structpp;
--- a/pngasmrd.h
+++ b/pngasmrd.h
@ -1,11 +0,0 @@
 /* pngasmrd.h - assembler version of utilities to read a PNG file
 *
 * libpng 1.2.6 - August 15, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 2002-2004 Glenn Randers-Pehrson
 *
 */
 /* This file is obsolete in libpng-1.0.9 and later; its contents now appear
 * at the end of pngconf.h.
 */
--- a/pngconf.h
+++ b/pngconf.h
@ -1,7 +1,7 @@
 /* pngconf.h - machine configurable file for libpng
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -589,13 +589,6 @@
 #  endif
 #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
    defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 #  ifndef PNG_NO_USER_TRANSFORM_PTR
 #    define PNG_USER_TRANSFORM_PTR_SUPPORTED
 #  endif
 #endif
 #define PNG_WRITE_INTERLACING_SUPPORTED  /* not required for PNG-compliant
                                            encoders, but can cause trouble
                                            if left undefined */
@ -605,12 +598,6 @@
 #  define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
 #endif
 #ifndef PNG_1_0_X
 #ifndef PNG_NO_ERROR_NUMBERS
 #define PNG_ERROR_NUMBERS_SUPPORTED
 #endif
 #endif /* PNG_1_0_X */
 #ifndef PNG_NO_WRITE_FLUSH
 #  define PNG_WRITE_FLUSH_SUPPORTED
 #endif
@ -622,6 +609,19 @@
 #endif /* PNG_WRITE_SUPPORTED */
 #ifndef PNG_1_0_X
 #  ifndef PNG_NO_ERROR_NUMBERS
 #    define PNG_ERROR_NUMBERS_SUPPORTED
 #  endif
 #endif /* PNG_1_0_X */
 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
    defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 #  ifndef PNG_NO_USER_TRANSFORM_PTR
 #    define PNG_USER_TRANSFORM_PTR_SUPPORTED
 #  endif
 #endif
 #ifndef PNG_NO_STDIO
 #  define PNG_TIME_RFC1123_SUPPORTED
 #endif
--- a/pngerror.c
+++ b/pngerror.c
@ -1,7 +1,7 @@
 /* pngerror.c - stub functions for i/o and memory allocation
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pnggccrd.c
+++ b/pnggccrd.c
@ -6,7 +6,7 @@
 *     and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
 *     for Intel's performance analysis of the MMX vs. non-MMX code.
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * Copyright (c) 1998, Intel Corporation
--- a/pngget.c
+++ b/pngget.c
@ -1,7 +1,7 @@
 /* pngget.c - retrieval of values from info struct
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngmem.c
+++ b/pngmem.c
@ -1,7 +1,7 @@
 /* pngmem.c - stub functions for memory allocation
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngnow.png
+++ b/pngnow.png
--- a/pngpread.c
+++ b/pngpread.c
@ -1,7 +1,7 @@
 /* pngpread.c - read a png file in push mode
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngread.c
+++ b/pngread.c
@ -1,7 +1,7 @@
 /* pngread.c - read a PNG file
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -803,7 +803,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
 * not called png_set_interlace_handling(), the display_row buffer will
 * be ignored, so pass NULL to it.
 *
- * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.6
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.7beta1
 */
 void PNGAPI
@ -853,7 +853,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
 * only call this function once.  If you desire to have an image for
 * each pass of a interlaced image, use png_read_rows() instead.
 *
- * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.6
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.7beta1
 */
 void PNGAPI
 png_read_image(png_structp png_ptr, png_bytepp image)
--- a/pngrio.c
+++ b/pngrio.c
@ -1,7 +1,7 @@
 /* pngrio.c - functions for data input
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngrtran.c
+++ b/pngrtran.c
@ -1,7 +1,7 @@
 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngrutil.c
+++ b/pngrutil.c
@ -1,6 +1,6 @@
 /* pngrutil.c - utilities to read a PNG file
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngset.c
+++ b/pngset.c
@ -1,7 +1,7 @@
 /* pngset.c - storage of image information into info struct
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngtest.c
+++ b/pngtest.c
@ -1,7 +1,7 @@
 /* pngtest.c - a simple test program to test libpng
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -1551,4 +1551,4 @@ main(int argc, char *argv[])
 }
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_6 your_png_h_is_not_version_1_2_6;
+typedef version_1_2_7beta1 your_png_h_is_not_version_1_2_7beta1;
--- a/pngtest.png
+++ b/pngtest.png
--- a/pngtrans.c
+++ b/pngtrans.c
@ -1,7 +1,7 @@
 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngvcrd.c
+++ b/pngvcrd.c
@ -2,7 +2,7 @@
 *
 * For Intel x86 CPU and Microsoft Visual C++ compiler
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * Copyright (c) 1998, Intel Corporation
--- a/pngwio.c
+++ b/pngwio.c
@ -1,7 +1,7 @@
 /* pngwio.c - functions for data output
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngwrite.c
+++ b/pngwrite.c
@ -1,7 +1,7 @@
 /* pngwrite.c - general routines to write a PNG file
 *
- * libpng 1.2.6 - August 15, 2004
+ * libpng 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngwtran.c
+++ b/pngwtran.c
@ -1,7 +1,7 @@
 /* pngwtran.c - transforms the data in a row for PNG writers
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
--- a/pngwutil.c
+++ b/pngwutil.c
@ -1,7 +1,7 @@
 /* pngwutil.c - utilities to write a PNG file
 *
- * libpng version 1.2.6 - August 15, 2004
+ * libpng version 1.2.7beta1 - August 26, 2004
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -515,7 +515,18 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
   if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL))
      png_ptr->zlib_mem_level = 8;
   if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS))
     {
       if (png_ptr->rowbytes <= 16384 && png_ptr->height <= 16384)
         {
 	   png_uint_32 imagebytes = (png_ptr->rowbytes+1) * png_ptr->height;
 	   png_uint_32 windowsize = 14;  /* try for a smaller window */
 	   while ((1U << windowsize) >= imagebytes && windowsize > 7)
 	       --windowsize;
 	   png_ptr->zlib_window_bits = windowsize + 1;
 	 }
       else
         png_ptr->zlib_window_bits = 15;
     }
   if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_METHOD))
      png_ptr->zlib_method = 8;
   deflateInit2(&png_ptr->zstream, png_ptr->zlib_level,
@ -602,45 +613,6 @@ png_write_IDAT(png_structp png_ptr, png_bytep data, png_size_t length)
 #endif
   png_debug(1, "in png_write_IDAT\n");
   /* Optimize the CMF field in the zlib stream. */
   /* This hack of the zlib stream is compliant to the stream specification. */
   if (!(png_ptr->mode & PNG_HAVE_IDAT) &&
       png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
   {
      unsigned int z_cmf = data[0];  /* zlib compression method and flags */
      if ((z_cmf & 0x0f) == 8 && (z_cmf & 0xf0) <= 0x70)
      {
         /* Avoid memory underflows and multiplication overflows. */
         /* The conditions below are practically always satisfied;
            however, they still must be checked. */
         if (length >= 2 &&
             png_ptr->height < 16384 && png_ptr->width < 16384)
         {
            png_uint_32 uncompressed_idat_size = png_ptr->height *
               (PNG_ROWBYTES(png_ptr->channels*png_ptr->bit_depth,
                  png_ptr->channels * png_ptr->bit_depth + 15) >> 3);
            unsigned int z_cinfo = z_cmf >> 4;
            unsigned int half_z_window_size = 1 << (z_cinfo + 7);
            while (uncompressed_idat_size <= half_z_window_size &&
                   half_z_window_size >= 256)
            {
               z_cinfo--;
               half_z_window_size >>= 1;
            }
            z_cmf = (z_cmf & 0x0f) | (z_cinfo << 4);
            if (data[0] != (png_byte)z_cmf)
            {
               data[0] = (png_byte)z_cmf;
               data[1] &= 0xe0;
               data[1] += (png_byte)(0x1f - ((z_cmf << 8) + data[1]) % 0x1f);
            }
         }
      }
      else
         png_error(png_ptr,
            "Invalid zlib compression method or flags in IDAT");
   }
   png_write_chunk(png_ptr, (png_bytep)png_IDAT, data, length);
   png_ptr->mode |= PNG_HAVE_IDAT;
 }
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@ -8,7 +8,7 @@
 # Modeled after libxml-config.
-version=1.2.6
+version=1.2.7beta1
 prefix=""
 libdir=""
 libs=""
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@ -6,6 +6,6 @@ includedir=${exec_prefix}/include
 Name: libpng12
 Description: Loads and saves PNG files
-Version: 1.2.6
+Version: 1.2.7beta1
 Libs: -L${libdir} -lpng12 -lz -lm
 Cflags: -I${includedir}/libpng12
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@ -33,7 +33,7 @@ RANLIB=echo
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 INCPATH=$(prefix)/include
@ -183,7 +183,17 @@ install-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.
+# 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) $(SUN_CC_FLAGS) -I$(DI) -I$(ZLIBINC) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/libpng12-config --ldflags` \
 	   $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@ -33,7 +33,7 @@ RANLIB=echo
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 INCPATH=$(prefix)/include
@ -184,7 +184,17 @@ install-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.
+# 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) $(SUN_CC_FLAGS) -I$(DI) -I$(ZLIBINC) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/libpng12-config --ldflags` \
 	   $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@ -18,7 +18,7 @@ RM = rm -f
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 prefix=/usr/local
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@ -12,7 +12,7 @@ ZLIBLIB=/usr/local/lib
 ZLIBINC=/usr/local/include
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 ALIGN=
@ -165,7 +165,17 @@ install-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.
+# 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) $(CFLAGS) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) -W1,-rpath $(ZLIBLIB):$(DL) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	$(CC) $(CFLAGS) \
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@ -79,7 +79,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng12
 PNGMAJ = 0
 CYGDLL = 12
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 SHAREDLIB=cygpng$(CYGDLL).dll
@ -260,7 +260,17 @@ test-config-install: $(DB)/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.
+# 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) $(CFLAGS) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	$(CC) $(CFLAGS) \
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@ -23,7 +23,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz
 RANLIB=ranlib
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -167,7 +167,17 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	$(CC) $(CFLAGS) \
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@ -32,7 +32,7 @@ ZLIBLIB=../zlib
 ZLIBINC=../zlib
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -148,7 +148,17 @@ install-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.
+# 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).
 	$(CC) -w1 -I$(DI) -I$(ZLIBINC) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB)  -R$(ZLIBLIB) -R$(DL) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@ -15,7 +15,7 @@
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 CC=gcc
@ -212,7 +212,17 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) -W1, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	$(CC) -I$(ZLIBINC) \
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@ -41,7 +41,7 @@ RANLIB=ranlib
 #RANLIB=echo
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -176,7 +176,17 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) -W1,-rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@ -24,7 +24,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
 RANLIB=ranlib
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -162,7 +162,17 @@ install-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.
+# 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) $(CCFLAGS) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@ -5,7 +5,7 @@
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 CC=gcc
@ -184,7 +184,17 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) -W1, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	$(CC) -I$(ZLIBINC) \
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@ -13,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng12
 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.6
+SHLIB_MINOR=	1.2.7beta1
 SRCS=	pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 		pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 		pngwtran.c pngmem.c pngerror.c pngpread.c
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@ -13,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.2.6
+SHLIB_MINOR=	1.2.7beta1
 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.openbsd
+++ b/scripts/makefile.openbsd
@ -7,7 +7,7 @@ LIBDIR=	${PREFIX}/lib
 MANDIR= ${PREFIX}/man/cat
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.6
+SHLIB_MINOR=	1.2.7beta1
 LIB=	png
 SRCS=	png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@ -24,7 +24,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm
 RANLIB=echo
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -162,7 +162,17 @@ install-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.
+# 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) $(CFLAGS) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	$(CC) $(CFLAGS) \
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@ -18,7 +18,7 @@ ZLIBINC=../zlib
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 CC=gcc
@ -169,14 +169,26 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
           -rpath $(ZLIBLIB):$(DL)\
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	echo
 	echo Testing installed dynamic shared library.
 	$(CC) -I$(ZLIBINC) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
-	   -L$(ZLIBLIB) -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --libdir` \
+	   -L$(ZLIBLIB) \
           -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --libdir` \
 	   -o pngtesti `$(BINPATH)/libpng12-config --ldflags`
 	./pngtesti pngtest.png
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@ -5,7 +5,7 @@
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 # Where make install puts libpng.a, libpng12.so, and libpng12/png.h
@ -175,14 +175,26 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -L$(DL) -L$(ZLIBLIB) \
           -rpath $(ZLIBLIB):$(DL) \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
 	./pngtestd pngtest.png
 test-installed:
 	echo
 	echo Testing installed dynamic shared library.
 	$(CC) -I$(ZLIBINC) \
 	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
-	   -L$(ZLIBLIB) -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --libdir` \
+	   -L$(ZLIBLIB) \
           -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --libdir` \
 	   -o pngtesti `$(BINPATH)/libpng12-config --ldflags`
 	./pngtesti pngtest.png
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@ -34,7 +34,7 @@ LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
 RANLIB=echo
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -182,7 +182,17 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags` \
 	   -L$(DL) -L$(ZLIBLIB)  -R$(ZLIBLIB) -R$(DL)
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@ -30,7 +30,7 @@ LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
 RANLIB=echo
 PNGMAJ = 0
-PNGMIN = 1.2.6
+PNGMIN = 1.2.7beta1
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
@ -179,7 +179,17 @@ install-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.
+# 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)/libpng12-config --cflags` pngtest.c \
 	   -o pngtestd `$(BINPATH)/libpng12-config --ldflags` \
 	   -L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
 	./pngtestd pngtest.png
 test-installed:
 	echo
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
-; Version 1.2.6
+; Version 1.2.7beta1
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@ -6,7 +6,7 @@ LIBRARY
 DESCRIPTION "PNG image compression library for Windows"
 EXPORTS
-;Version 1.2.6
+;Version 1.2.7beta1
  png_build_grayscale_palette  @1
  png_check_sig        @2
  png_chunk_error      @3
--- a/test-pngtest.sh
+++ b/test-pngtest.sh
@ -1,3 +0,0 @@
 #!/bin/sh
 ./pngtest ${srcdir}/pngtest.png
		`@ -1,3 +0,0 @@`
			`#!/bin/sh`

			`./pngtest ${srcdir}/pngtest.png`