ANNOUNCE - third_party/libpng - Git at Google


 Libpng 1.5.15rc01 - March 21, 2013

 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.

 Files available for download:

 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script

    1.5.15rc01.tar.xz (LZMA-compressed, recommended)
    1.5.15rc01.tar.gz
    1.5.15rc01.tar.bz2

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

    lp1515r01.7z  (LZMA-compressed, recommended)
    lp1515r01.zip

 Other information:

    1.5.15rc01-README.txt
    1.5.15rc01-LICENSE.txt

 Changes since the last public release (1.5.14):

 Version 1.5.15beta01 [February 4, 2013]
   Enabled renaming of the extern (but not DLL exported) ARM filter functions.
     Also enabled inclusion of pngpriv.h in non-C files by preventing C/C++
     specific definitions if PNG_VERSION_INFO_ONLY is defined.
   Added png_get_palette_max() function.

 Version 1.5.15beta02 [February 5, 2013]
   Made a probably general fix for the preprocessing used to generate source
     files. This change might make the check for a special C preprocessor
     unnecessary, and it also eliminates the requirement for sed in the
     configure build process.
   Fix typo in Makefile.am, fix scripts/pnglibconf.mak and makefile.std
   Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.13
   Fix 'setting' handling in options.awk and fixed palette_max API

 Version 1.5.15beta03 [February 7, 2013]
   Remove SUN OS cc -E workround - no longer required
   Turn serial tests back on (recently turned off by autotools upgrade).

 Version 1.5.15beta04 [February 15, 2013]
   Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED
     block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.

 Version 1.5.15beta05 [February 17, 2013]
   Use approved/supported Android method to check for NEON, use Linux/POSIX
     1003.1 API to check /proc/self/auxv avoiding buffer allocation and other
     library calls.
   Fixed a race condition in the creation of the build 'scripts' directory
     while building with a parallel make.
   Use parentheses more consistently in "#if defined(MACRO)" tests.

 Version 1.5.15beta06 [February 22, 2013]
   Fixed PNG_ALIGN(ED)_MEMORY and add ability to turn off ARM_NEON
     runtime checks
   Updated the INSTALL document.

 Version 1.5.15beta07 [February 27, 2013]
   Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES.
   Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC.
   Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble
     with CRLF line endings.

 Version 1.5.15beta08 [March 5, 2013]
   Avoid a possible memory leak in contrib/gregbook/readpng.c
   Made the _SUPPORTED macro definitions consistent. The change made in
     libpng15 to #define *_SUPPORTED 1, to match the use of -D*_SUPPORTED
     (which means -D*_SUPPORTED=1) and avoid compiler warnings from GCC was made
     inconsistently and causes problems as a result, also some additions in
     pnglibconf.h.prebuilt were inconsistent (omitting the 1). This changes 1.5
     back to the scheme used both before (1.4) and after (1.6). This might cause
     some build scripts to issue warnings, and might, in the extreme, cause some
     applications to fail (but they would fail anyway against 1.6).  It seems
     safer to go for consistency, given the change in 1.6, not correctness here,
     particularly as 'make check' currently warns anyway on the symbols.dfn check
     because of the inconsistencies.
   Corrected Android builds and corrected libpng.vers with symbol
     prefixing This adds an API to set optimization options externally,
     providing an alternative and general solution for the non-portable
     run-time tests used by the ARM Neon code.  It also makes those tests
     compile and link on Android.
   The order of settings vs options in pnglibconf.h is reversed to allow
     settings to depend on options and options can now set (or override) the
     defaults for settings.

 Version 1.5.15beta09 [March 13, 2013]
   Fixed CMakelists.txt to allow building a single variant of the library
     (Claudio Bley):
   Introduced a PNG_LIB_TARGETS variable that lists all activated library
     targets.  It is an error if this variable ends up empty, ie. you have
     to build at least one library variant.
   Made the *_COPY targets only depend on library targets actually being build.
   Use PNG_LIB_TARGETS to unify a code path.
   Changed the CREATE_SYMLINK macro to expect the full path to a file as the
     first argument. When symlinking the filename component of that path is
     determined and used as the link target.
   Use copy_if_different in the CREATE_SYMLINK macro.
   Eliminated two warnings from the Intel C compiler. The warnings are
     technically valid, although a reasonable treatment of division would
     show it to be incorrect.

 Version 1.5.15rc01 [March 21, 2013]
   No changes.

 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

	Libpng 1.5.15rc01 - March 21, 2013

	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.

	Files available for download:

	Source files with LF line endings (for Unix/Linux) and with a
	"configure" script

	1.5.15rc01.tar.xz (LZMA-compressed, recommended)
	1.5.15rc01.tar.gz
	1.5.15rc01.tar.bz2

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

	lp1515r01.7z (LZMA-compressed, recommended)
	lp1515r01.zip

	Other information:

	1.5.15rc01-README.txt
	1.5.15rc01-LICENSE.txt

	Changes since the last public release (1.5.14):

	Version 1.5.15beta01 [February 4, 2013]
	Enabled renaming of the extern (but not DLL exported) ARM filter functions.
	Also enabled inclusion of pngpriv.h in non-C files by preventing C/C++
	specific definitions if PNG_VERSION_INFO_ONLY is defined.
	Added png_get_palette_max() function.

	Version 1.5.15beta02 [February 5, 2013]
	Made a probably general fix for the preprocessing used to generate source
	files. This change might make the check for a special C preprocessor
	unnecessary, and it also eliminates the requirement for sed in the
	configure build process.
	Fix typo in Makefile.am, fix scripts/pnglibconf.mak and makefile.std
	Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.13
	Fix 'setting' handling in options.awk and fixed palette_max API

	Version 1.5.15beta03 [February 7, 2013]
	Remove SUN OS cc -E workround - no longer required
	Turn serial tests back on (recently turned off by autotools upgrade).

	Version 1.5.15beta04 [February 15, 2013]
	Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED
	block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.

	Version 1.5.15beta05 [February 17, 2013]
	Use approved/supported Android method to check for NEON, use Linux/POSIX
	1003.1 API to check /proc/self/auxv avoiding buffer allocation and other
	library calls.
	Fixed a race condition in the creation of the build 'scripts' directory
	while building with a parallel make.
	Use parentheses more consistently in "#if defined(MACRO)" tests.

	Version 1.5.15beta06 [February 22, 2013]
	Fixed PNG_ALIGN(ED)_MEMORY and add ability to turn off ARM_NEON
	runtime checks
	Updated the INSTALL document.

	Version 1.5.15beta07 [February 27, 2013]
	Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES.
	Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC.
	Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble
	with CRLF line endings.

	Version 1.5.15beta08 [March 5, 2013]
	Avoid a possible memory leak in contrib/gregbook/readpng.c
	Made the _SUPPORTED macro definitions consistent. The change made in
	libpng15 to #define _SUPPORTED 1, to match the use of -D_SUPPORTED
	(which means -D*_SUPPORTED=1) and avoid compiler warnings from GCC was made
	inconsistently and causes problems as a result, also some additions in
	pnglibconf.h.prebuilt were inconsistent (omitting the 1). This changes 1.5
	back to the scheme used both before (1.4) and after (1.6). This might cause
	some build scripts to issue warnings, and might, in the extreme, cause some
	applications to fail (but they would fail anyway against 1.6). It seems
	safer to go for consistency, given the change in 1.6, not correctness here,
	particularly as 'make check' currently warns anyway on the symbols.dfn check
	because of the inconsistencies.
	Corrected Android builds and corrected libpng.vers with symbol
	prefixing This adds an API to set optimization options externally,
	providing an alternative and general solution for the non-portable
	run-time tests used by the ARM Neon code. It also makes those tests
	compile and link on Android.
	The order of settings vs options in pnglibconf.h is reversed to allow
	settings to depend on options and options can now set (or override) the
	defaults for settings.

	Version 1.5.15beta09 [March 13, 2013]
	Fixed CMakelists.txt to allow building a single variant of the library
	(Claudio Bley):
	Introduced a PNG_LIB_TARGETS variable that lists all activated library
	targets. It is an error if this variable ends up empty, ie. you have
	to build at least one library variant.
	Made the *_COPY targets only depend on library targets actually being build.
	Use PNG_LIB_TARGETS to unify a code path.
	Changed the CREATE_SYMLINK macro to expect the full path to a file as the
	first argument. When symlinking the filename component of that path is
	determined and used as the link target.
	Use copy_if_different in the CREATE_SYMLINK macro.
	Eliminated two warnings from the Intel C compiler. The warnings are
	technically valid, although a reasonable treatment of division would
	show it to be incorrect.

	Version 1.5.15rc01 [March 21, 2013]
	No changes.

	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