improve compatibility with GCC 4.4, patch by Michel Salim (PR3697)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65884 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/HeaderSearch.cpp b/lib/Lex/HeaderSearch.cpp
index 44ae35c..2cc29ec 100644
--- a/lib/Lex/HeaderSearch.cpp
+++ b/lib/Lex/HeaderSearch.cpp
@@ -17,6 +17,7 @@
#include "clang/Basic/IdentifierTable.h"
#include "llvm/System/Path.h"
#include "llvm/ADT/SmallString.h"
+#include <cstdio>
using namespace clang;
HeaderSearch::HeaderSearch(FileManager &FM) : FileMgr(FM), FrameworkMap(64) {