pangocairo clear font cache
I'm working on an issue for librsvg: librsvg#536
which lead to this issue with pango-rs: https://github.com/gtk-rs/pango/issues/170
And am running into difficulties with flushing the cache through pangocairo, because of pangocairo's access to pango_fc_font_map_cache_clear. Anyone able to help with this? I'm not sure where to begin.