fc: Make hb font immutable

The frontend is caching this object, and we are giving
it out to applications. We really can't allow them to
modify it in any way.

1 files changed, 2 insertions, 0 deletions

diff --git a/pango/pangofc-font.c b/pango/pangofc-font.c
index 7c4f64e9..43588889 100644
--- a/pango/pangofc-font.c
+++ b/pango/pangofc-font.c
@@ -1197,5 +1197,7 @@ pango_fc_font_create_hb_font (PangoFont *font)
         }
     }
 
+  hb_font_make_immutable (hb_font);
+
   return hb_font;
 }