[pango/explicit-fontconfig-init] fontconfig: Explicitly init fontconfig

[Matthias Clasen <matthiasc src gnome org>]

commit 5f889a07c1e7191adac7b45a450bb007a59d309c
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Aug 18 16:44:18 2020 -0400

    fontconfig: Explicitly init fontconfig
    
    Otherwise, fontconfig ends up parsing it enormous
    configuration the first time we call FcConfigSubstitute,
    which takes ~60ms here. We don't want that to hit us
    unexpectedly, so get it out of the way early.

 pango/pangofc-fontmap.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/pango/pangofc-fontmap.c b/pango/pangofc-fontmap.c
index 4c2aa094c..4e2a2c7b9 100644
--- a/pango/pangofc-fontmap.c
+++ b/pango/pangofc-fontmap.c
@@ -1206,6 +1206,8 @@ pango_fc_font_map_init (PangoFcFontMap *fcfontmap)
                                                     (GDestroyNotify)pango_fc_font_face_data_free,
                                                     NULL);
   priv->dpi = -1;
+
+  FcInit ();
 }
 
 static void