#define HB_OT_TAG_DEFAULT_SCRIPT HB_TAG ('D', 'F', 'L', 'T')
#define HB_OT_TAG_DEFAULT_LANGUAGE HB_TAG ('d', 'f', 'l', 't')
-HB_EXTERN void
+void
hb_ot_tags_from_script (hb_script_t script,
hb_tag_t *script_tag_1,
hb_tag_t *script_tag_2);
-HB_EXTERN hb_script_t
+hb_script_t
hb_ot_tag_to_script (hb_tag_t tag);
-HB_EXTERN hb_tag_t
+hb_tag_t
hb_ot_tag_from_language (hb_language_t language);
-HB_EXTERN hb_language_t
+hb_language_t
hb_ot_tag_to_language (hb_tag_t tag);