Add missing #include

llvm-svn: 103260
diff --git a/clang/lib/Frontend/BoostConAction.cpp b/clang/lib/Frontend/BoostConAction.cpp
index 9e4f97d..505d5af 100644
--- a/clang/lib/Frontend/BoostConAction.cpp
+++ b/clang/lib/Frontend/BoostConAction.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 #include "clang/Frontend/FrontendActions.h"
 #include "clang/AST/ASTConsumer.h"
+#include <cstdio>
 using namespace clang;
 
 namespace {