--- harfbuzz-0.9.8/src/hb-private.hh.orig	2012-11-23 23:33:08.000000000 +0100
+++ harfbuzz-0.9.8/src/hb-private.hh	2012-12-06 18:21:40.215335229 +0100
@@ -65,7 +65,7 @@
 /* Void! */
 struct _void_t;
 typedef const _void_t &void_t;
-#define VOID (* (const _void_t *) NULL)
+#define HBVOID (* (const _void_t *) NULL)
 
 
 /* Basics */
--- harfbuzz-0.9.8/src/hb-ot-layout-gsubgpos-private.hh.orig	2012-11-30 07:38:20.000000000 +0100
+++ harfbuzz-0.9.8/src/hb-ot-layout-gsubgpos-private.hh	2012-12-06 18:22:07.522001326 +0100
@@ -60,8 +60,8 @@ struct hb_closure_context_t
   typedef void_t return_t;
   typedef return_t (*recurse_func_t) (hb_closure_context_t *c, unsigned int lookup_index);
   template <typename T>
-  inline return_t process (const T &obj) { obj.closure (this); return VOID; }
-  static return_t default_return_value (void) { return VOID; }
+  inline return_t process (const T &obj) { obj.closure (this); return HBVOID; }
+  static return_t default_return_value (void) { return HBVOID; }
   bool stop_sublookup_iteration (const return_t r) const { return false; }
   return_t recurse (unsigned int lookup_index)
   {
@@ -71,7 +71,7 @@ struct hb_closure_context_t
     nesting_level_left--;
     recurse_func (this, lookup_index);
     nesting_level_left++;
-    return VOID;
+    return HBVOID;
   }
 
   hb_face_t *face;
@@ -148,8 +148,8 @@ struct hb_collect_glyphs_context_t
   typedef void_t return_t;
   typedef return_t (*recurse_func_t) (hb_collect_glyphs_context_t *c, unsigned int lookup_index);
   template <typename T>
-  inline return_t process (const T &obj) { obj.collect_glyphs (this); return VOID; }
-  static return_t default_return_value (void) { return VOID; }
+  inline return_t process (const T &obj) { obj.collect_glyphs (this); return HBVOID; }
+  static return_t default_return_value (void) { return HBVOID; }
   bool stop_sublookup_iteration (const return_t r) const { return false; }
   return_t recurse (unsigned int lookup_index)
   {
@@ -161,7 +161,7 @@ struct hb_collect_glyphs_context_t
     hb_collect_glyphs_context_t new_c (this->face, NULL, NULL, NULL, &output, nesting_level_left);
     recurse_func (&new_c, lookup_index);
     nesting_level_left++;
-    return VOID;
+    return HBVOID;
   }
 
   hb_face_t *face;