src/3rdparty/libpng/ANNOUNCE
changeset 30 5dc02b23752f
parent 0 1918ee327afb
equal deleted inserted replaced
29:b72c6db6890b 30:5dc02b23752f
     1 
     1 
     2 Libpng 1.2.40 - September 10, 2009
     2 Libpng 1.4.0 - January 3, 2010
     3 
     3 
     4 This is a public release of libpng, intended for use in production codes.
     4 This is a public release of libpng, intended for use in production codes.
     5 
     5 
     6 Files available for download:
     6 Files available for download:
     7 
     7 
     8 Source files with LF line endings (for Unix/Linux) and with a
     8 Source files with LF line endings (for Unix/Linux) and with a
     9 "configure" script
     9 "configure" script
    10 
    10 
    11    libpng-1.2.40.tar.xz (LZMA-compressed, recommended)
    11    libpng-1.4.0.tar.xz (LZMA-compressed, recommended)
    12    libpng-1.2.40.tar.gz
    12    libpng-1.4.0.tar.gz
    13    libpng-1.2.40.tar.bz2
    13    libpng-1.4.0.tar.bz2
    14 
       
    15 Source files with LF line endings (for Unix/Linux) without the
       
    16 "configure" script
       
    17 
       
    18    libpng-1.2.40-no-config.tar.xz (LZMA-compressed, recommended)
       
    19    libpng-1.2.40-no-config.tar.gz
       
    20    libpng-1.2.40-no-config.tar.bz2
       
    21 
    14 
    22 Source files with CRLF line endings (for Windows), without the
    15 Source files with CRLF line endings (for Windows), without the
    23 "configure" script
    16 "configure" script
    24 
    17 
    25    lpng1240.zip
    18    lpng140.zip
    26    lpng1240.7z
    19    lpng140.7z
    27    lpng1240.tar.bz2
       
    28 
       
    29 Project files
       
    30 
       
    31    libpng-1.2.40-project-netware.zip
       
    32    libpng-1.2.40-project-wince.zip
       
    33 
    20 
    34 Other information:
    21 Other information:
    35 
    22 
    36    libpng-1.2.40-README.txt
    23    libpng-1.4.0-README.txt
    37    libpng-1.2.40-KNOWNBUGS.txt
    24    libpng-1.4.0-LICENSE.txt
    38    libpng-1.2.40-LICENSE.txt
    25 
    39    libpng-1.2.40-Y2K-compliance.txt
    26 Changes since the last public release (1.2.10):
    40    libpng-1.2.40-[previous version]-diff.txt
    27 
    41 
    28 version 1.4.0 [January 3, 2010]
    42 Changes since the last public release (1.2.39):
    29 
    43 
    30   Enabled iTXt support (changes png_struct, thus requires so-number change).
    44 version 1.2.40 [September 10, 2009]
    31   Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
    45 
    32   Eliminated PNG_1_0_X and PNG_1_2_X macros.
    46   Removed an extra png_debug() recently added to png_write_find_filter().
    33   Removed deprecated functions png_read_init, png_write_init, png_info_init,
    47   Fixed incorrect #ifdef in pngset.c regarding unknown chunk support.
    34     png_permit_empty_plte, png_set_gray_1_2_4_to_8, and removed the
       
    35     deprecated macro PNG_MAX_UINT.
       
    36   Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
       
    37   Removed all  WIN32_WCE #ifdefs except those involving the
       
    38     time.h "tm" structure (Cosmin)
       
    39   Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
       
    40   Replaced sprintf() with png_sprintf() (Simon-Pierre)
       
    41   Revised makefiles to avoid making links to libpng.so.*
       
    42   Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
       
    43     writing an embedded PNG without the 8-byte signature.
       
    44   Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
       
    45   Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
       
    46   Scripts/libpng.pc.in contained "configure" style version info and would
       
    47     not work with makefiles.
       
    48   Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
       
    49     buffer overflow.
       
    50   Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb))
       
    51   Changed sonum from 0 to 1.
       
    52   Removed unused prototype for png_check_sig() from png.h
       
    53   Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
       
    54   Avoided potential buffer overflow and optimized buffer in
       
    55     png_write_sCAL(), png_write_sCAL_s() (Cosmin).
       
    56   Removed the include directories and libraries from CFLAGS and LDFLAGS
       
    57     in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
       
    58   Exported png_write_sig (Cosmin).
       
    59   Optimized buffer in png_handle_cHRM() (Cosmin).
       
    60   Allow zero-length IDAT chunks after the entire zlib datastream, but not
       
    61     after another intervening chunk type.
       
    62   Set pHYs = 2835 x 2835 pixels per meter, and added
       
    63     pngtest now produces, and made some cosmetic changes to pngtest output.
       
    64     sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin).
       
    65   Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error().
       
    66   Revised INSTALL and autogen.sh
       
    67   Fixed typo in several makefiles (-W1 should be -Wl)
       
    68   Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
       
    69   Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
       
    70     reading out of bounds.
       
    71   Added demonstration of user chunk support in pngtest.c, to support the
       
    72     public sTER chunk and a private vpAg chunk.
       
    73   Removed ordinals from scripts/pngw32.def and removed png_info_int and
       
    74     png_set_gray_1_2_4_to_8 entries.
       
    75   Inline call of png_get_uint_32() in png_get_uint_31().
       
    76   Removed WINCE and Netware projects.
       
    77   Removed standalone Y2KINFO file.
       
    78   Removed AC_FUNC_MALLOC from configure.ac.
       
    79   Added a warning when writing iCCP profile with mismatched profile length.
       
    80   Patched pnggccrd.c to assemble on x86_64 platforms.
       
    81   Moved chunk header reading into a separate function png_read_chunk_header()
       
    82     in pngrutil.c.  The chunk header (len+sig) is now serialized in a single
       
    83     operation (Cosmin).
       
    84   Implemented support for I/O states. Added png_ptr member io_state, and
       
    85     functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
       
    86     (Cosmin).
       
    87   Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin).
       
    88   Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin).
       
    89   Removed the include directories and libraries from CFLAGS and LDFLAGS
       
    90     in scripts/makefile.gcc (Cosmin).
       
    91   Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin).
       
    92   Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin).
       
    93   Added pngintrn.h to the Visual C++ projects (Cosmin).
       
    94   Removed scripts/list (Cosmin).
       
    95   Updated copyright year in scripts/pngwin.def (Cosmin).
       
    96   Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin).
       
    97   Disallowed the user to redefine png_size_t, and enforced a consistent use
       
    98     of png_size_t across libpng (Cosmin).
       
    99   Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends
       
   100     to png_size_t (Cosmin).
       
   101   Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin).
       
   102   Removed some unnecessary type casts (Cosmin).
       
   103   Changed prototype of png_get_compression_buffer_size() and
       
   104     png_set_compression_buffer_size() to work with png_size_t instead of
       
   105     png_uint_32 (Cosmin).
       
   106   Removed png_memcpy_check() and png_memset_check() (Cosmin).
       
   107   Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin).
       
   108   Clarified that png_zalloc() does not clear the allocated memory,
       
   109     and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin).
       
   110   Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in
       
   111     pngconf.h, and used it in all memory allocation functions (Cosmin).
       
   112   Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file
       
   113     mentioning that the symbols declared in that file are private, and
       
   114     updated the scripts and the Visual C++ projects accordingly (Cosmin).
       
   115   Removing trailing '.' from the warning and error messages (Cosmin).
       
   116   Revised many of the makefiles to write their defines in pngdefs.h.
       
   117   Changed "logical" to "bitwise" in the documentation.
       
   118   Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
       
   119   Add a typecast to stifle compiler warning in pngrutil.c
       
   120   Detect and fix attempt to write wrong iCCP profile length.
       
   121   Fix potential buffer overflow in sPLT chunk handler.
       
   122   Fix Makefile.am to not try to link to noexistent files.
       
   123   Check all exported functions for NULL png_ptr.
       
   124   Built Makefile.in with automake-1.9.6 instead of 1.9.2.
       
   125   Add "install: all" in Makefile.am so "configure; make install" will work.
       
   126   Added a typecast in png_zalloc().
       
   127   Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c
       
   128   Add "png_bytep" typecast to profile while calculating length in pngwutil.c
       
   129   Added scripts/CMakeLists.txt
       
   130   Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
       
   131     to eliminate a vulnerability (CVE-2007-2554, CERT VU#684664)
       
   132   Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
       
   133     can be free'ed in case of error.  Revised unknown chunk handling in
       
   134     pngrutil.c and pngpread.c to use this structure.
       
   135   Prefer PNG_USE_PNGVCRD when _MSC_VER is defined in pngconf.h
       
   136   Revised pngvcrd.c for improved efficiency.
       
   137   Moved local array "chunkdata" from pngrutil.c to the png_struct, so
       
   138     it will be freed by png_read_destroy() in case of a read error (Kurt
       
   139     Christensen).
       
   140   Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
       
   141   Change all  "chunkdata" to "png_ptr->chunkdata" in png_decompress_chunk(),
       
   142     and remove "chunkdata" from parameter list.
       
   143   Put a call to png_check_chunk_name() in png_read_chunk_header().
       
   144   Removed two calls to png_check_chunk_name() occuring later in the process.
       
   145   Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
       
   146   Added png_push_have_buffer() function to pngpread.c
       
   147   Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros.
       
   148   Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS.
       
   149   Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code.
       
   150   Synced contrib directory and configure files with libpng-1.2.30beta06.
       
   151   Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta)
       
   152   Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings.
       
   153   Updated contrib/visupng/cexcept.h to version 2.0.1
       
   154   Added PNG_LITERAL_CHARACTER macros for #, [, and ].
       
   155   Moved newline character from individual png_debug messages into the
       
   156     png_debug macros.
       
   157   Allow user to #define their own png_debug, png_debug1, and png_debug2.
       
   158   Added PNG_STRING_NEWLINE macro
       
   159   Added PNG_STRING_COPYRIGHT macro.
       
   160   Added non-ISO versions of png_debug macros.
       
   161   Added PNG_WRITE_FLUSH_SUPPORTED and PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED
       
   162     blocks around new png_flush() call.
       
   163   Revised PNG_NO_STDIO version of png_write_flush()
       
   164   Added png_get|set_chunk_cache_max() to limit the total number of sPLT,
       
   165     text, and unknown chunks that can be stored.
       
   166   Shortened tIME_string to 29 bytes in pngtest.c
       
   167   Revised makefile.darwin to fix shared library numbering.
       
   168   Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8()
       
   169     in example.c (debian bug report)
       
   170   Sync with tEXt vulnerability fix in libpng-1.2.33rc02.
       
   171   Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c,
       
   172     and pngwrite.c
       
   173   Added check for zero-area RGB cHRM triange in png_check_cHRM() and
       
   174     png_check_cHRM_fixed().
       
   175   Revised png_warning() to write its message on standard output by default
       
   176     when warning_fn is NULL.
       
   177   Eliminated png_check_cHRM().  Instead, always use png_check_cHRM_fixed().
       
   178   In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant
       
   179     check for all-zero coordinates that is detected by the triangle check.
       
   180   Rearranged test expressions in png_check_cHRM_fixed() to avoid internal
       
   181     overflows.
       
   182   Added PNG_NO_CHECK_cHRM conditional.
       
   183   Fixed string vs pointer-to-string error in png_check_keyword().
       
   184   Added PNG_NO_CHECK_cHRM conditional.
       
   185   Merge png_debug with version 1.2.34beta04.
       
   186   Removed redundant check for key==NULL before calling png_check_keyword()
       
   187     to ensure that new_key gets initialized and removed extra warning
       
   188     (Merge with version 1.2.34beta05 -- Arvan Pritchard).
       
   189   Added PNG_TRANSFORM_STRIP_FILLER_BEFORE and PNG_TRANSFORM_STRIP_FILLER_AFTER
       
   190     conditionals and deprecated PNG_TRANSFORM_STRIP_FILLER (Jim Barry).
       
   191   Turned off PNG_READ_DITHER_SUPPORTED by default.
       
   192   Combined several instances of png_malloc(); png_memset() into png_calloc().
       
   193   Fixed order of #ifdef directives in the png_debug defines in png.h
       
   194     (bug introduced in libpng-1.2.34).
       
   195   Revised comments in png_set_read_fn() and png_set_write_fn().
       
   196   Use png_calloc() instead of png_malloc() to allocate big_row_buf when
       
   197     reading an interlaced file, to avoid a possible UMR.
       
   198   Revised libpng*.txt and png.h documentation about use of png_write_flush()
       
   199     and png_set_write_fn().
       
   200   Removed fflush() from pngtest.c.
       
   201   Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
       
   202   Removed fflush() from pngtest.c.
       
   203   Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
       
   204   Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
       
   205   Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
       
   206   Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
       
   207     application code writers to bypass the check for multiple inclusion
       
   208     of setjmp.h when they know that it is safe to ignore the situation.
       
   209   Eliminated internal use of setjmp() in pngread.c and pngwrite.c
       
   210   Eliminated deprecated png_read_init_3() and png_write_init_3() functions.
       
   211   Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
       
   212     "shadowed declaration" warning from gcc-4.3.3.
       
   213   Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
       
   214     warning about a global "gamma" variable in math.h on some platforms.
       
   215   Removed pngprefs.h and MMX from makefiles
       
   216   Rebuilt configure scripts with autoconf-2.63 instead of 2.62
       
   217   Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
       
   218   Reformated sources in libpng style (3-space intentation, comment format)
       
   219   Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG)
       
   220   Added sections about the git repository and our coding style to the
       
   221     documentation
       
   222   Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
       
   223   Conditionally compile png_read_finish_row() which is not used by
       
   224     progressive readers.
       
   225   Added contrib/pngminim/preader to demonstrate building minimal progressive
       
   226     decoder, based on contrib/gregbook with embedded libpng and zlib.
       
   227   In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
       
   228     is only one makefile in those directories, and revised the README files
       
   229     accordingly.
       
   230   Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
       
   231     and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
       
   232   Added a section in the documentation about using png_get_io_ptr() in
       
   233     configure scripts to detect the presence of libpng.
       
   234   Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
       
   235     multiple times and to specify the sample order in the tRNS chunk,
       
   236     because the ISO PNG specification has a typo in the tRNS table.
       
   237   Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
       
   238     PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
       
   239     available for ignoring known chunks even when not saving unknown chunks.
       
   240   Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
       
   241     "#if defined()" and "if !defined()" where possible.
       
   242   Eliminated PNG_LEGACY_SUPPORTED code.
       
   243   Moved the various unknown chunk macro definitions outside of the
       
   244      PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
       
   245   Added a reference to the libpng license in each file.
       
   246   Relocated INVERT_ALPHA within png_read_png() and png_write_png().
       
   247   Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
       
   248   Added an "xcode" project to the projects directory (Alam Arias).
       
   249   Avoid some tests in filter selection in pngwutil.c
       
   250   Avoid a possible NULL dereference in debug build, in png_set_text_2().
       
   251     (bug introduced in libpng-0.95, discovered by Evan Rouault)
       
   252   Rebuilt configure scripts with autoconf-2.65
       
   253   Replaced *.tar.lzma with *.tar.xz in distribution.  Get the xz codec
       
   254     from <http://tukaani.org/xz>.
       
   255   Reject attempt to write iCCP chunk with negative embedded profile length
       
   256     (JD Chen)
       
   257   Changed "trans" to "trans_alpha" and changed "trans_values" to "trans_color".
       
   258   Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt,
       
   259     and the "noconfig" files from the distribution.
       
   260   Moved CMakeLists.txt from scripts into the main libpng directory.
    48   Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
   261   Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
       
   262   Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h
       
   263   Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros.
       
   264   Use png_malloc plus a loop instead of png_calloc() to initialize
       
   265     row_pointers in png_read_png().
       
   266   Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays.
       
   267   Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc().
       
   268   Removed scripts/libpng.icc
       
   269   Changed typecast of filler from png_byte to png_uint_16 in png_set_filler().
       
   270     (Dennis Gustafsson)
       
   271   Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h
       
   272   Expanded TAB characters in pngrtran.c
       
   273   Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid
       
   274     compiler complaints about doubly declaring things "const".
       
   275   Eliminated unused png_ptr->row_buf_size
       
   276   Changed all "#if [!]defined(X)" to "if[n]def X" where possible.
       
   277   Moved redundant IHDR checking into new png_check_IHDR() in png.c
       
   278     and report all errors found in the IHDR data.
       
   279   Eliminated useless call to png_check_cHRM() from pngset.c
       
   280   Eliminated a shadowed declaration of "pp" in png_handle_sPLT().
       
   281   Patched ltmain.sh for wince support.
       
   282   Added PNG_CONVERT_tIME_SUPPORTED macro.
       
   283   Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED
       
   284   Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED
       
   285   Updated scripts/pngw32.def and projects/wince/png32ce.def
       
   286   Copied projects/wince/png32ce.def to the scripts directory.
       
   287   Added scripts/makefile.cegcc
       
   288   Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0
       
   289   Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and
       
   290     PNG_ALLOCATED macros to detect deprecated direct access to the
       
   291     png_struct or info_struct members and other deprecated usage in
       
   292     applications (John Bowler).
       
   293   Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS,
       
   294     to prevent warnings about direct access to png structs by libpng
       
   295     functions while building libpng.  They need to be tested, especially
       
   296     those using compilers other than gcc.
       
   297   Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
       
   298   Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG".
       
   299     They should work but still need to be updated to remove
       
   300     references to pnggccrd.c or pngvcrd.c and ASM building.
       
   301   Added README.txt to the beos, cbuilder5, netware, and xcode projects warning
       
   302     that they need to be updated, to remove references to pnggccrd.c and
       
   303     pngvcrd.c and to depend on pngpriv.h
       
   304   Removed three direct references to read_info_ptr members in pngtest.c
       
   305     that were detected by the new PNG_DEPSTRUCT macro.
       
   306   Moved the png_debug macro definitions and the png_read_destroy(),
       
   307     png_write_destroy() and png_far_to_near() prototypes from png.h
       
   308     to pngpriv.h (John Bowler)
       
   309   Moved the synopsis lines for png_read_destroy(), png_write_destroy()
       
   310     png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3.
       
   311   Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
       
   312   Removed dependency of pngtest.o on pngpriv.h in the makefiles.
       
   313   Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile
       
   314   Changed png_check_sig() to !png_sig_cmp() in contrib programs.
       
   315   Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c
       
   316   Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c
       
   317   Added dependency on pngpriv.h in contrib/pngminim/*/makefile
       
   318   Revised Makefile.am to use libpng.sys while building libpng.so
       
   319     so that only PNG_EXPORT functions are exported.
       
   320   Removed the deprecated png_check_sig() function/macro.
       
   321   Removed recently removed function names from scripts/*.def
       
   322   Added PNG_PRIVATE macro definition in pngconf.h for possible future use.
       
   323   Removed projects/beos and netware.txt; no one seems to be supporting them.
       
   324   Moved libpng-config.in and libpng.pc-configure.in out of the scripts
       
   325     directory, to libpng-config.in and libpng.pc.in, respectively, and
       
   326     modified Makefile.am and configure.ac accordingly.  Now "configure"
       
   327     needs nothing from the "scripts" directory.
       
   328   Removed ASM builds from projects/visualc6 and projects/visualc71
       
   329   Removed scripts/makefile.nommx and makefile.vcawin32
       
   330   Revised CMakeLists.txt to account for new location of libpng-config.in
       
   331     and libpng.pc.in
       
   332   Updated INSTALL to reflect removal and relocation of files.
       
   333   Moved descriptions of makefiles and other scripts out of INSTALL into
       
   334     scripts/README.txt
       
   335   Updated the copyright year in scripts/pngwin.rc from 2006 to 2009.
       
   336   Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt
       
   337   Align row_buf on 16-byte boundary in memory.
       
   338   Make the 'png_jmpbuf' macro expand to a call that records the correct
       
   339     longjmp function as well as returning a pointer to the setjmp
       
   340     jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'.
       
   341     (John Bowler)
       
   342   Changed "/255" to "/255.0" in background calculations to make it clear
       
   343     that the 255 is used as a double.
       
   344   Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files.
       
   345   Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco
       
   346     to put png.h and pngconf.h in $prefix/include, like the other scripts,
       
   347     instead of in $prefix/include/libpng.  Also revised makefile.sco
       
   348     to put them in $prefix/include/libpng14 instead of in
       
   349     $prefix/include/libpng/libpng14.
       
   350   Added "bit_depth" parameter to the private png_build_gamma_table() function.
       
   351   Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c
       
   352   Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr
       
   353     in pngtest.c
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