Fixed to work again without USE_GUSI
diff --git a/Mac/Modules/macmodule.c b/Mac/Modules/macmodule.c
index b284912..c2224f0 100644
--- a/Mac/Modules/macmodule.c
+++ b/Mac/Modules/macmodule.c
@@ -68,12 +68,9 @@
 #undef sync
 int sync(void);
 #else
-#ifdef x__MWERKS__
-#include <unix.h>
-#else
+#define mode_t int
 #include <fcntl.h>
 #endif
-#endif
 
 /* Optional routines, for some compiler/runtime combinations */
 #if defined(USE_GUSI) || !defined(__MWERKS__)