X-Git-Url: https://pd.if.org/git/?p=pdclib.old;a=blobdiff_plain;f=includes%2Fstddef.h;h=e335dd07d3b742f7fc69e6c03606a81beebe094e;hp=f64a9a109279e70e7e3b02904208e0f3416f19a2;hb=12e17136786afb1775c9dc946cbe41f5e230c24a;hpb=9489b93733c00be5a94e2ee5b349457c78184a1a

diff --git a/includes/stddef.h b/includes/stddef.h
index f64a9a1..e335dd0 100644
--- a/includes/stddef.h
+++ b/includes/stddef.h
@@ -30,7 +30,10 @@ typedef _PDCLIB_size_t size_t;
 
 typedef _PDCLIB_wchar_t   wchar_t;
 
+#ifndef _PDCLIB_NULL_DEFINED
+#define _PDCLIB_NULL_DEFINED _PDCLIB_NULL_DEFINED
 #define NULL _PDCLIB_NULL
+#endif
 
 #define offsetof( type, member ) _PDCLIB_offsetof( type, member )