Fix for issue5657.

diff --git a/Include/pymacconfig.h b/Include/pymacconfig.h
index a8679af498ff7c58634d8ea964a806a40de2c407..b2cc0b74a7830b8ed8a6d4db635a984db2166b91 100644 (file)
--- a/Include/pymacconfig.h
+++ b/Include/pymacconfig.h
@@ -67,6 +67,18 @@
 #define WORDS_BIGENDIAN 1
 #endif /* __BIG_ENDIAN */
 
+       /* 
+        * The definition in pyconfig.h is only valid on the OS release
+        * where configure ran on and not necessarily for all systems where
+        * the executable can be used on. 
+        * 
+        * Specifically: OSX 10.4 has limited supported for '%zd', while
+        * 10.5 has full support for '%zd'. A binary built on 10.5 won't
+        * work properly on 10.4 unless we surpress the definition
+        * of PY_FORMAT_SIZE_T
+        */
+#undef PY_FORMAT_SIZE_T
+
 
 #endif /* defined(_APPLE__) */