Fix windows build, patch by Howard Su.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74697 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/System/Errno.cpp b/lib/System/Errno.cpp
index f4e3a88d054eaeeec6552652450ecbec71aceb8f..d046aba04dd5c2e48065e369eb3d39cf883b9dbd 100644 (file)
--- a/lib/System/Errno.cpp
+++ b/lib/System/Errno.cpp
@@ -47,10 +47,10 @@ std::string StrError(int errnum) {
 # else
     strerror_r(errnum,buffer,MaxErrStrLen-1);
 # endif
-#elif HAVE_STRERROR_S  // Windows.
+#elif defined(HAVE_STRERROR_S)  // Windows.
     if (errnum)
       strerror_s(buffer, errnum);
-#elif HAVE_STRERROR
+#elif defined(HAVE_STRERROR)
   // Copy the thread un-safe result of strerror into
   // the buffer as fast as possible to minimize impact
   // of collision of strerror in multiple threads.