When I save my font in pfaedit as .ttf and then try to see the font in gedit
it honors all the anchor classes and other opentype features. But when I
save the font as .otf (opentype) then it ignores all the opentype features.
This bug has been resolved by Owen Taylor, but it has not made it into the CVS.
Here is the patch, against 1.2.5. This works for 1.3.1 also and the latest
CVS (2004-Jan-06).

--- pango-1.2.5/pango/opentype/pango-ot-info.c.cff      2003-12-11
13:27:19.0000
00000 -0500
+++ pango-1.2.5/pango/opentype/pango-ot-info.c  2003-12-11
13:27:56.000000000 -0
500
@@ -137,7 +137,8 @@
 static gboolean
 is_truetype (FT_Face face)
 {
-  return strcmp (FT_MODULE_CLASS (face->driver)->module_name, "truetype")
== 0;
+  return (strcmp (FT_MODULE_CLASS (face->driver)->module_name, "truetype")
== 0
 ||
+         strcmp (FT_MODULE_CLASS (face->driver)->module_name, "cff") == 0);
 }
 
 typedef struct _GlyphInfo GlyphInfo;