font_family_exists      Check if font family exists.
fontconfig_reinit       reload Fontconfig configuration
glyphs_match            Validate glyph entries
m_str_extents           Compute string extents for a vector of string.
match_family            Find best family match with systemfonts
raster_str              Draw/preview a raster into a string
raster_write            Draw/preview a raster to a png file
set_dummy_conf          Set and unset a minimalistic Fontconfig
                        configuration
str_extents             Compute string extents.
str_metrics             Get font metrics for a string.
sys_fonts               List system fonts.
version_freetype        Version numbers of C libraries
