[test-buffer-serialize] Allow no font

src/test-buffer-serialize.cc

@@ -43,10 +43,8 @@ main (int argc, char **argv)
 
 #ifndef HB_NO_BUFFER_SERIALIZE
 
-  if (argc != 2) {
-    fprintf (stderr, "usage: %s font-file\n", argv[0]);
-    exit (1);
-  }
+  if (argc < 2)
+    argv[1] = (char *) "/dev/null";
 
   hb_blob_t *blob = hb_blob_create_from_file_or_fail (argv[1]);
   assert (blob);
@@ -58,7 +56,7 @@ main (int argc, char **argv)
   hb_font_t *font = hb_font_create (face);
   hb_face_destroy (face);
   hb_font_set_scale (font, upem, upem);
-  hb_ot_font_set_funcs (font);
+  //hb_ot_font_set_funcs (font);
 #ifdef HAVE_FREETYPE
   //hb_ft_font_set_funcs (font);
 #endif