| Libpng 1.6.31 - July 27, 2017 |
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| This is a public release of libpng, intended for use in production codes. |
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| Files available for download: |
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| Source files with LF line endings (for Unix/Linux) and with a |
| "configure" script |
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| libpng-1.6.31.tar.xz (LZMA-compressed, recommended) |
| libpng-1.6.31.tar.gz |
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| Source files with CRLF line endings (for Windows), without the |
| "configure" script |
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| lpng1631.7z (LZMA-compressed, recommended) |
| lpng1631.zip |
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| Other information: |
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| libpng-1.6.31-README.txt |
| libpng-1.6.31-LICENSE.txt |
| libpng-1.6.31-*.asc (armored detached GPG signatures) |
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| Changes since the last public release (1.6.30): |
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| Guard the definition of _POSIX_SOURCE in pngpriv.h (AIX already defines it; |
| bug report by Michael Felt). |
| Revised pngpriv.h to work around failure to compile arm/filter_neon.S |
| ("typedef" directive is unrecognized by the assembler). The problem |
| was introduced in libpng-1.6.30beta01. |
| Added "Requires: zlib" to libpng.pc.in (Pieter Neerincx). |
| Added special case for FreeBSD in arm/filter_neon.S (Maya Rashish). |
| Added instructions for disabling hardware optimizations in INSTALL. |
| Added "--enable-hardware-optimizations" configuration flag to enable |
| or disable all hardware optimizations with one flag. |
| Updated CMakeLists.txt to add INTEL_SSE and MIPS_MSA platforms. |
| Changed "int" to "png_size_t" in intel/filter_sse2.c to prevent |
| possible integer overflow (Bug report by John Bowler). |
| Quieted "declaration after statement" warnings in intel/filter_sse2.c. |
| Added scripts/makefile-linux-opt, which has hardware optimizations enabled. |
| Removed one of the GCC-7.1.0 'strict-overflow' warnings that result when |
| integers appear on both sides of a compare. Worked around the others by |
| forcing the strict-overflow setting in the relevant functions to a level |
| where they are not reported (John Bowler). |
| Changed "FALL THROUGH" comments to "FALLTHROUGH" because GCC doesn't like |
| the space. |
| Worked around some C-style casts from (void*) because g++ 5.4.0 objects |
| to them. |
| Increased the buffer size for 'sprint' to pass the gcc 7.1.0 'sprint |
| overflow' check that is on by default with -Wall -Wextra. |
| Added eXIf chunk support. |
| Added a minimal eXIf chunk (with Orientation and FocalLengthIn35mmFilm |
| tags) to pngtest.png. |
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| Send comments/corrections/commendations to png-mng-implement at lists.sf.net |
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| https://lists.sourceforge.net/lists/listinfo/png-mng-implement |
| to subscribe) |
| or to glennrp at users.sourceforge.net |
| |
| Glenn R-P |
