--- types.h.old	2011-03-03 13:56:30.000000000 +0000
+++ types.h	2011-03-03 13:59:45.000000000 +0000
@@ -25,6 +25,9 @@
 #ifndef bool
 typedef enum { false = 0, true = 1 } at_bool;
 #else
+#ifdef __ALTIVEC__
+#include <stdbool.h>
+#endif
 #define at_bool bool
 #endif
 #else