Update to 2.12.3

Debian unstable now has 2.12.3. Please consider merging.
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Current 16.04+ releases uses fc 2.11.94 (2.12 RC4) for an early fix for bug #1556457. It sounds saner to move to 2.12.1, a non-RC release which contains some Unicode table updates, memory leak fixes, and the original fix for CVE-2016-5384, for the next Ubuntu release. The ABI appears unchanged since 2.11.94.
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README (with ChangeLog): https://cgit.freedesktop.org/fontconfig/tree/README
ABI diff: https://abi-laboratory.pro/tracker/timeline/fontconfig/

2.12.3

Akira TAGOH (1):
      Fix make check fail with freetype-2.7.1 and 2.8 with PCF_CONFIG_OPTION_LONG_FAMILY_NAMES enabled.

2.12.2

Akira TAGOH (8):
      Don't call perror() if no changes happens in errno
      Fix FcCacheOffsetsValid()
      Fix the build issue with gperf 3.1
      Fix the build issue on GNU/Hurd
      Update a bit for the changes in FreeType 2.7.1
      Add the description of FC_LANG envvar to the doc
      Bug 101202 - fontconfig FTBFS if docbook-utils is installed
      Update libtool revision

Alan Coopersmith (1):
      Correct cache version info in doc/fontconfig-user.sgml

Khem Raj (1):
      Avoid conflicts with integer width macros from TS 18661-1:2014

Masamichi Hosoda (2):
      Fix PostScript font alias name
      Update aliases for URW June 2016

2.12.1

Akira TAGOH (6):
      Add --with-default-hinting to configure
      Update CaseFolding.txt to Unicode 9.0
      Check python installed in autogen.sh
      Fix some errors related to python3
      Bug 96676 - Check range of FcWeightFromOpenType argument
      Update libtool revision

Tobias Stoeckmann (1):
      Properly validate offsets in cache files.

2.12

Akira TAGOH (8):
      Modernize fc-blanks.py
      Update URL
      Bug 95477 - FcAtomicLock fails when SELinux denies link() syscall with EACCES
      45-latin.conf: Add some Windows fonts to categorize them properly
      Correct one for the previous change
      Bug 95481 - Build fails on Android due to broken lconv struct
      Add the static raw data to generate fcblanks.h
      Remove unused code

Erik de Castro Lopo (1):
      Fix a couple of minor memory leaks

Petr Filipsky (1):
      Fix memory leak in FcDirCacheLock

2.11.95 (2.12 RC5)

Akira TAGOH (22):
      Add one more debugging option to see transformation on font-matching
      Fix a crash when no objects are available after filtering
      No need to be public
      mark as private at this moment
      Don't return FcFalse even when no fonts dirs is configured
      Add a warning for blank in fonts.conf
      Fix a memory leak in FcFreeTypeQueryFace
      Update CaseFolding.txt to Unicode 8.0
      Bug 90867 - Memory Leak during error case in fccharset
      Fix the broken cache more.
      Fail on make runtime as needed instead of configure if no python installed
      Use long long to see the same size between LP64 and LLP64
      Fix build issue on MinGW
      Use int64_t instead of long long
      Fix compiler warnings on MinGW
      Fix assertion on 32bit arch
      remomve unnecessary code
      Bug 93075 - Possible fix for make check failure on msys/MinGW...
      Avoid an error message on testing when no fonts.conf installed
      Add hintstyle templates and make hintslight default
      Revert "Workaround another race condition issue"
      Update libtool revision

Behdad Esfahbod (6):
      Revert changes made to FcConfigAppFontAddDir() recently
      Call FcFreeTypeQueryFace() from fcdir.c, instead of FcFreeTypeQuery()
      [GX] Support instance weight, width, and style name
      [GX] Enumerate all named-instances in TrueType GX fonts
      Improve OpenType to Fontconfig weight mapping
      [GX] Improve weight mapping

Patrick Haller (1):
      Optimizations in FcStrSet