Add a runtime version check for harfbuzz

Electron apps seem to include a static copy of a
too old version of harfbuzz. Error out with a clear
message in this broken situation, instead of
segfaulting later.

1 files changed, 4 insertions, 1 deletions

diff --git a/pango/pangofc-fontmap.c b/pango/pangofc-fontmap.c
index 2bda526e..c7193941 100644
--- a/pango/pangofc-fontmap.c
+++ b/pango/pangofc-fontmap.c
@@ -2752,11 +2752,14 @@ pango_fc_font_map_get_hb_face (PangoFcFontMap *fcfontmap,
   PangoFcFontFaceData *data;
 
   data = pango_fc_font_map_get_font_face_data (fcfontmap, fcfont->font_pattern);
-  
+
   if (!data->hb_face)
     {
       hb_blob_t *blob;
 
+      if (!hb_version_atleast (2, 0, 0))
+        g_error ("Harfbuzz version too old (%s)\n", hb_version_string ());
+
       blob = hb_blob_create_from_file (data->filename);
       data->hb_face = hb_face_create (blob, data->id);
       hb_blob_destroy (blob);