close() requires "unistd.h" .


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7695 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/FileUtilities.cpp b/lib/Support/FileUtilities.cpp
index 9f9ef30..3e4c270 100644
--- a/lib/Support/FileUtilities.cpp
+++ b/lib/Support/FileUtilities.cpp
@@ -6,6 +6,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "Support/FileUtilities.h"
+#include "Config/unistd.h"
 #include <fstream>
 #include <iostream>
 #include <cstdio>