diff --git a/src/autofit/ft-hb.c b/src/autofit/ft-hb.c
index 260ebdc1b..09a8401c4 100644
--- a/src/autofit/ft-hb.c
+++ b/src/autofit/ft-hb.c
@@ -92,7 +92,7 @@ hb_ft_face_create_ (FT_Face           ft_face,
   return face;
 }
 
-hb_font_t *
+FT_LOCAL_DEF(hb_font_t *)
 hb_ft_font_create_ (FT_Face           ft_face,
                     hb_destroy_func_t destroy)
 {
@@ -105,4 +105,11 @@ hb_ft_font_create_ (FT_Face           ft_face,
   return font;
 }
 
-#endif
+#else /* !FT_CONFIG_OPTION_USE_HARFBUZZ */
+
+/* ANSI C doesn't like empty source files */
+typedef int  _ft_hb_dummy;
+
+#endif /* !FT_CONFIG_OPTION_USE_HARFBUZZ */
+
+/* END */
diff --git a/src/autofit/ft-hb.h b/src/autofit/ft-hb.h
index 0d3ca206d..92a5774bc 100644
--- a/src/autofit/ft-hb.h
+++ b/src/autofit/ft-hb.h
@@ -29,7 +29,20 @@
 
 #include <hb.h>
 
-hb_font_t * hb_ft_font_create_ (FT_Face           ft_face,
-                                hb_destroy_func_t destroy);
+#include <freetype/internal/compiler-macros.h>
+#include <freetype/freetype.h>
 
-#endif
+
+FT_BEGIN_HEADER
+
+FT_LOCAL(hb_font_t *)
+hb_ft_font_create_ (FT_Face           ft_face,
+                    hb_destroy_func_t destroy);
+
+
+FT_END_HEADER
+
+#endif /* FT_HB_H */
+
+
+/* END */
diff --git a/src/autofit/rules.mk b/src/autofit/rules.mk
index 4b6fcfbdd..a46ba3f0f 100644
--- a/src/autofit/rules.mk
+++ b/src/autofit/rules.mk
@@ -39,6 +39,7 @@ AUTOF_DRV_SRC := $(AUTOF_DIR)/afblue.c   \
                  $(AUTOF_DIR)/afmodule.c \
                  $(AUTOF_DIR)/afranges.c \
                  $(AUTOF_DIR)/afshaper.c \
+                 $(AUTOF_DIR)/ft-hb.c
 
 # AUTOF driver headers
 #