Add ligatures to problem list

font/font.c

@@ -1268,8 +1268,6 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
 	case GRUB_UNICODE_COMB_HEBREW_QAMATS:
 	case GRUB_UNICODE_COMB_HEBREW_TSERE:
 	case GRUB_UNICODE_COMB_HEBREW_SEGOL:
-	  /* , 
-	     GRUB_UNICODE_COMB_HEBREW_DAGESH = 21*/
 	  /* TODO: placement in final kaf and under reish.  */
 
 	case GRUB_UNICODE_COMB_HEBREW_HATAF_SEGOL:

normal/charset.c

@@ -34,6 +34,7 @@
   - Private use characters (not really a problem)
   - Variations (no font support)
   - Vertical text
+  - Ligatures
   Font information ignored:
   - Kerning
   - Justification data

util/grub-mkfont.c

@@ -289,6 +289,8 @@ struct gsub_features
 #define FEATURE_INIT 0x696e6974
 #define FEATURE_MEDI 0x6d656469
 #define FEATURE_AALT 0x61616c74
+#define FEATURE_LIGA 0x6c696761
+#define FEATURE_RLIG 0x726c6967
     grub_uint32_t feature_tag;
     grub_uint16_t offset;
   } __attribute__ ((packed)) features[0];
@@ -517,6 +519,11 @@ add_font (struct grub_font_info *font_info, FT_Face face)
 	    case FEATURE_AALT:
 	      break;
 
+	      /* FIXME: Add ligature support.  */
+	    case FEATURE_LIGA:
+	    case FEATURE_RLIG:
+	      break;
+
 	      /* Cursive form variants.  */
 	    case FEATURE_FINA:
 	    case FEATURE_INIT: