Add missing include, found by modules build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207158 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Option/OptSpecifier.h b/include/llvm/Option/OptSpecifier.h
index 02bc6b175edbaab09960cfecc41488d29ea5a544..b7caa6e85a7d67ff5b9617c72fd7d8c0cddf5961 100644 (file)
--- a/include/llvm/Option/OptSpecifier.h
+++ b/include/llvm/Option/OptSpecifier.h
@@ -10,6 +10,8 @@
 #ifndef LLVM_OPTION_OPTSPECIFIER_H
 #define LLVM_OPTION_OPTSPECIFIER_H
 
+#include "llvm/Support/Compiler.h"
+
 namespace llvm {
 namespace opt {
   class Option;