Workaround what I believe is an MSVC bug where it emits a definition for a

static const class member into each translation unit, with external linkage???
 - If someone understands this issue better, please clue me in, I haven't
   consulted the standard yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82516 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/StringRef.cpp b/lib/Support/StringRef.cpp
index a4c0e87c28eacd1574f4f1bc4da72b334d262bc4..deaa19efe998632d21797544d0f7a27572f395f5 100644 (file)
--- a/lib/Support/StringRef.cpp
+++ b/lib/Support/StringRef.cpp
@@ -10,7 +10,10 @@
 #include "llvm/ADT/StringRef.h"
 using namespace llvm;
 
+// MSVC emits references to this into the translation units which reference it.
+#ifndef _MSC_VER
 const size_t StringRef::npos;
+#endif
 
 //===----------------------------------------------------------------------===//
 // String Searching