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-Libpng 1.6.15 - November 20, 2014
-
-This is a public release of libpng, intended for use in production codes.
-
-Files available for download:
-
-Source files with LF line endings (for Unix/Linux) and with a
-"configure" script
-
- libpng-1.6.15.tar.xz (LZMA-compressed, recommended)
- libpng-1.6.15.tar.gz
-
-Source files with CRLF line endings (for Windows), without the
-"configure" script
-
- lpng1615.7z (LZMA-compressed, recommended)
- lpng1615.zip
-
-Other information:
-
- libpng-1.6.15-README.txt
- libpng-1.6.15-LICENSE.txt
- libpng-1.6.15-*.asc (armored detached GPG signatures)
-
-Changes since the last public release (1.6.14):
- Changed "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
- Simplified png_free_data().
- Added missing "ptr = NULL" after some instances of png_free().
- Made a one-line revision to configure.ac to support ARM on aarch64
- (bug report by Marcin Juszkiewicz, fix by John Bowler).
- Avoid out-of-bounds memory access in png_user_version_check().
- Simplified and future-proofed png_user_version_check().
- Fixed GCC unsigned int->float warnings. Various versions of GCC
- seem to generate warnings when an unsigned value is implicitly
- converted to double. This is probably a GCC bug but this change
- avoids the issue by explicitly converting to (int) where safe.
- Free all allocated memory in pngimage. The file buffer cache was left
- allocated at the end of the program, harmless but it causes memory
- leak reports from clang.
- Fixed array size calculations to avoid warnings. At various points
- in the code the number of elements in an array is calculated using
- sizeof. This generates a compile time constant of type (size_t) which
- is then typically assigned to an (unsigned int) or (int). Some versions
- of GCC on 64-bit systems warn about the apparent narrowing, even though
- the same compiler does apparently generate the correct, in-range,
- numeric constant. This adds appropriate, safe, casts to make the
- warnings go away.
- Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is
- needed by png_reciprocal2().
- Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
- png_do_swap().
- Changed all "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */"
- The macros passed in the command line to Borland make were ignored if
- similarly-named macros were already defined in makefiles. This behavior
- is different from POSIX make and other make programs. Surround the
- macro definitions with ifndef guards (Cosmin).
- Added "-D_CRT_SECURE_NO_WARNINGS" to CFLAGS in scripts/makefile.vcwin32.
- Removed the obsolete $ARCH variable from scripts/makefile.darwin.
-
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net
-(subscription required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe)
-or to glennrp at users.sourceforge.net
-
-Glenn R-P