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/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 26777d9..2a9fa0a 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -38,6 +38,7 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Streams.h"
+#include <cstdio>
using namespace clang;
//===----------------------------------------------------------------------===//