Unbreak Mac build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187937 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Transforms/Instrumentation.h b/include/llvm/Transforms/Instrumentation.h
index a7e6cc586793b0efae1fe826f61667c21026f644..9befe588e3b29a40379087dd00a61a13d2f6eb77 100644 (file)
--- a/include/llvm/Transforms/Instrumentation.h
+++ b/include/llvm/Transforms/Instrumentation.h
@@ -16,7 +16,7 @@
 
 #include "llvm/ADT/StringRef.h"
 
-#ifdef __GNUC__
+#if defined(__GNUC__) && defined(__linux__)
 inline void *getDFSanArgTLSPtrForJIT() {
   extern __thread __attribute__((tls_model("initial-exec")))
     void *__dfsan_arg_tls;