Xft2 and fontconfig conversion, based largely on a patch
from Keith Packard.
* configure.in acconfig.h: Add checks for fontconfig, switch
Xft checks to switch for Xft2 using pkg-config.
* pangoxft.pc.in pangoxft.pc.in
modules/{arabic,basic,hebrew,indic,tamil}/Makefile.am
pango/Makefile.am: Reflect new Xft/fontconfig dependencies.
* pango/pangoxft-private.h pango/pangoxft-fontmap.c
modules/arabic/arabic-xft.c modules/indic/indic-xft.c:
Switch over to using Xft2 and fontconfig.
* pango/pangoft2.c pango/pangoft2-fontmap.c pango/pangoft2-private.h
pango/pango/Makefile.am: Remove usage of mini-xft in
favor of fontconfig.
* pango/pango-ot.h pango/opentype/pango-ot-info.c pango/pangoxft.h
modules/arabic/arabic-{xft,ft2}.c modules/indic/indic-xft.c:
Attach OpenType information directly to the FT_Face
structure using FT_Generic.
* modules/tamil/Makefile.am modules/tamil/tamil-xft.c
configure.in: Remove this module, no longer needed.
* pango/pangoxft-font.c (pango_xft_real_render): Coalesce
calls to Xft rendering functions.
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