Added a separate extension (.carbon.slb) for Carbon dynamic modules.
diff --git a/Python/dynload_mac.c b/Python/dynload_mac.c
index 645df90..e5e08e3 100644
--- a/Python/dynload_mac.c
+++ b/Python/dynload_mac.c
@@ -20,8 +20,12 @@
 #ifdef __CFM68K__
 	{".CFM68K.slb", "rb", C_EXTENSION},
 #else
+#ifdef TARGET_API_MAC_CARBON
+	{".carbon.slb", "rb", C_EXTENSION},
+#else
 	{".ppc.slb", "rb", C_EXTENSION},
 #endif
+#endif
 	{0, 0}
 };