include BLO_sys_types in customdata header rather than stdint directly.

source/blender/blenkernel/BKE_customdata.h

@@ -34,14 +34,12 @@
 #ifndef BKE_CUSTOMDATA_H
 #define BKE_CUSTOMDATA_H
 
-#if defined(__APPLE__) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)
-#include <stdint.h>
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#include "../blenloader/BLO_sys_types.h" /* XXX, should have a more generic include for this */
+
 struct ID;
 struct CustomData;
 struct CustomDataLayer;