CBackend: Fix MSVC build.
This may produce warnings on MSVS, but it's better than failures.
llvm-svn: 113834
diff --git a/llvm/lib/Target/CBackend/CBackend.cpp b/llvm/lib/Target/CBackend/CBackend.cpp
index 8e84ed3..49391c3 100644
--- a/llvm/lib/Target/CBackend/CBackend.cpp
+++ b/llvm/lib/Target/CBackend/CBackend.cpp
@@ -50,6 +50,10 @@
#include "llvm/System/Host.h"
#include "llvm/Config/config.h"
#include <algorithm>
+// Some ms header decided to define setjmp as _setjmp, undo this for this file.
+#ifdef _MSC_VER
+#undef setjmp
+#endif
using namespace llvm;
extern "C" void LLVMInitializeCBackendTarget() {