move exposed ft-hb interface to public include directory

include/freetype/ft-hb-functype.h

@@ -0,0 +1,46 @@
+/****************************************************************************
+ *
+ * ft-hb.h
+ *
+ *   FreeType-HarfBuzz bridge (specification).
+ *
+ * Copyright (C) 2025 by
+ * 6ziv.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ *
+ * Originally located in src/autofit/ft-hb.h
+ * Move to a public header so that external projects can rely on this.
+ *
+ */
+
+#ifndef FT_HB_FUNCTYPE_H
+#define FT_HB_FUNCTYPE_H
+
+#include <freetype/ft-hb-types.h>
+#if defined( FT_CONFIG_OPTION_USE_HARFBUZZ_DYNAMIC )   || \
+    defined( FT_CONFIG_OPTION_USE_HARFBUZZ_CALLBACKS )
+
+#define HB_EXTERN( ret, name, args ) \
+  typedef ret (*ft_ ## name ## _func_t) args;
+#include <freetype/ft-hb-decls.h>
+#undef HB_EXTERN
+
+typedef struct ft_hb_funcs_t
+{
+
+    #define HB_EXTERN( ret, name, args ) \
+  ft_ ## name ## _func_t  name;
+#include <freetype/ft-hb-decls.h>
+#undef HB_EXTERN
+
+} ft_hb_funcs_t;
+
+#endif
+
+#endif /* FT_HB_FUNCTYPE_H */

meson.build

@@ -183,6 +183,9 @@ ft2_public_headers = files([
   'include/freetype/ttnameid.h',
   'include/freetype/tttables.h',
   'include/freetype/tttags.h',
+  'include/freetype/ft-hb-types.h',
+  'include/freetype/ft-hb-decls.h',
+  'include/freetype/ft-hb-functype.h'
 ])
 
 ft2_config_headers = files([

src/autofit/ft-hb.c

@@ -137,7 +137,7 @@
     if ( !funcs->name )               \
       goto Fail;                      \
   }
-#include "ft-hb-decls.h"
+#include <freetype/internal/ft-hb-decls.h>
 #undef HB_EXTERN
 
 #undef DLSYM

src/autofit/ft-hb.h

@@ -27,24 +27,11 @@ FT_BEGIN_HEADER
 
 #ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
 
-#  include "ft-hb-types.h"
+#  include <freetype/ft-hb-functype.h>
 
 #  if defined( FT_CONFIG_OPTION_USE_HARFBUZZ_DYNAMIC )   || \
       defined( FT_CONFIG_OPTION_USE_HARFBUZZ_CALLBACKS )
 
-#    define HB_EXTERN( ret, name, args ) \
-              typedef ret (*ft_ ## name ## _func_t) args;
-#    include "ft-hb-decls.h"
-#    undef HB_EXTERN
-
-  typedef struct ft_hb_funcs_t
-  {
-#    define HB_EXTERN( ret, name, args ) \
-              ft_ ## name ## _func_t  name;
-#    include "ft-hb-decls.h"
-#    undef HB_EXTERN
-  } ft_hb_funcs_t;
-
 #  ifdef FT_CONFIG_OPTION_USE_HARFBUZZ_DYNAMIC
 
   struct  AF_ModuleRec_;
@@ -63,7 +50,7 @@ FT_BEGIN_HEADER
 
 #    define HB_EXTERN( ret, name, args ) \
               ret name args;
-#    include "ft-hb-decls.h"
+#    include <freetype/ft-hb-decls.h>
 #    undef HB_EXTERN
 
 #    define hb( x )  hb_ ## x

src/autofit/rules.mk

@@ -53,8 +53,7 @@ AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h)     \
                $(AUTOF_DIR)/afstyles.h    \
                $(AUTOF_DIR)/aftypes.h     \
                $(AUTOF_DIR)/afws-decl.h   \
-               $(AUTOF_DIR)/afws-iter.h   \
-               $(AUTOF_DIR)/ft-hb-decls.h
+               $(AUTOF_DIR)/afws-iter.h
 
 
 # AUTOF driver object(s)