[cfe-commits] r105985 - /cfe/trunk/lib/Headers/stddef.h

[Sean Hunt]

Author: coppro
Date: Mon Jun 14 21:36:48 2010
New Revision: 105985

URL: http://llvm.org/viewvc/llvm-project?rev=105985&view=rev
Log:
MinGW requires that wint_t be defined in stddef.h. In order to accomodate, we
won't define it unless specifically requested via the use of __need_wint_t.

Modified:
    cfe/trunk/lib/Headers/stddef.h

Modified: cfe/trunk/lib/Headers/stddef.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/stddef.h?rev=105985&r1=105984&r2=105985&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/stddef.h (original)
+++ cfe/trunk/lib/Headers/stddef.h Mon Jun 14 21:36:48 2010
@@ -45,6 +45,13 @@
 #define NULL ((void*)0)
 #endif
 
+// Some C libraries expect to see a wint_t here. Others (notably MinGW) will use
+// __WINT_TYPE__ directly; accomodate both by requiring __need_wint_t
+#if defined(__need_wint_t) && !defined(_WINT_T)
+#define _WINT_T
+typedef __WINT_TYPE__ wint_t;
+#endif
+
 #define offsetof(t, d) __builtin_offsetof(t, d)
 
 #endif /* __STDDEF_H */