Source from ftp://ftp.gtk.org/pub/gtk/v2.6/pango-1.8.0.tar.bz2 doesn't install
cleanly with fontconfig-2.1-9

pangofc-fontmap.c: In function `pango_fc_convert_weight_to_fc':
pangofc-fontmap.c:538: `FC_WEIGHT_NORMAL' undeclared (first use in this function)

fontconfig-2.1 seems to only define LIGHT MEDIUM DEMIBOLD BOLD BLACK

Changing FC_WEIGHT_NORMAL to FC_WEIGHT_MEDIUM on line 538 of
pango/pangofc-fontmap.c allows compilation to continue.

GTK+ fails to configure, too:

There were 11 lines in config.log of the form:
/usr/local/lib/libpangoxft-1.0.so: undefined reference to
`pango_fc_font_map_cache_clear'

GTK configures and compiles if you add pangoft2 to "Requires:" section of
pangoxft.pc