Bit the bullet and enabled garbage collection (finally).
Also updated pyconfig.h to the current state of pyconfig.h.in.
diff --git a/Mac/Python/macgetcompiler.c b/Mac/Python/macgetcompiler.c
index e3d24b7..eb9c3c4 100644
--- a/Mac/Python/macgetcompiler.c
+++ b/Mac/Python/macgetcompiler.c
@@ -57,7 +57,13 @@
 #define TARGET_API " PPC"
 #endif
 
-#define COMPILER " [CW" TARGET_API HASGUSI HASTHREAD"]"
+#ifdef WITH_CYCLE_GC
+#define HASGC " GC"
+#else
+#define HASGC ""
+#endif
+
+#define COMPILER " [CW" TARGET_API HASGUSI HASTHREAD HASGC"]"
 #endif
 
 #ifdef MPW