2.17.0 released

[Akira TAGOH]

Hi,

I've made a new release of fontconfig, 2.17.0. This contains bug
fixes, improvements, and new APIs. let me pick up few important
changes in this release:

* No fallback decoding to UTF-16BE if built with no iconv support
  We basically rely on iconv to decode non-UTF-16BE encoded strings in
a font though, In previous releases, broken strings was added into a
cache if no iconv support and a font is encoded with non-UTF-16BE. We
decided to drop such broken strings. Please enable iconv support if
you want to add non-UTF-16BE encoded strings in a font to caches.

* Fix a memory leak around FcFini()
  This has been done by moving some memory pointers into FcConfig.
Because of this, few APIs needed to be modified to take a FcConfig as
an argument. The old APIs still work with the default FcConfig
instance. Your code may need to be updated if they are on
multi-threads.  The affected APIs are:
  FcGetDefaultLangs() -> FcConfigGetDefaultLangs()
  FcDefaultSubstitute() -> FcConfigSetDefaultSubstitute()

* No config migration code
  We've ever used $HOME/.fonts.conf and $HOME/.fonts.conf.d to have a
user-own fontconfig config files and have migrated to XDG-based. It
worked well and I don't think it is still needed. So dropped (as a
part of FcFini() changes/fixes) and no longer try to migrate.

* Allow scanning dotfiles
  fontconfig is capable of scanning dotfiles for fonts.

* new build option to choose bitmap config
   Choose one of:
     yes -> 70-yes-bitmaps.conf
     no -> 70-no-bitmaps-and-emoji.conf
     no-except-emoji -> 70-no-bitmaps-except-emoji.conf

Please check a release note in
https://gitlab.freedesktop.org/fontconfig/fontconfig/-/releases/2.17.0
for full-summary of this release and download link is also there.

Regards,
-- 
Akira TAGOH