From: Hans Wennborg <hans@hanshq.net>
Date: Tue, 14 Oct 2014 23:20:25 +0000 (+0000)
Subject: vadefs.h: be even more conservative and only define the macros if already defined
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5b066cf2946b8e57eb24676feb30be812fce2b01;p=clang

vadefs.h: be even more conservative and only define the macros if already defined

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@219745 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Headers/vadefs.h b/lib/Headers/vadefs.h
index 85cbfc37a3..cb997fbf66 100644
--- a/lib/Headers/vadefs.h
+++ b/lib/Headers/vadefs.h
@@ -34,17 +34,16 @@
 /* Override macros from vadefs.h with definitions that work with Clang. */
 #ifdef _crt_va_start
 #undef _crt_va_start
+#define _crt_va_start(ap, param) __builtin_va_start(ap, param)
 #endif
 #ifdef _crt_va_end
 #undef _crt_va_end
+#define _crt_va_end(ap)          __builtin_va_end(ap)
 #endif
 #ifdef _crt_va_arg
 #undef _crt_va_arg
-#endif
-
-#define _crt_va_start(ap, param) __builtin_va_start(ap, param)
-#define _crt_va_end(ap)          __builtin_va_end(ap)
 #define _crt_va_arg(ap, type)    __builtin_va_arg(ap, type)
+#endif
 
 #endif
 #endif