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-rw-r--r--lib/Target/CppBackend/CPPBackend.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index 0eb15d3f35..c5bd13c05b 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -33,6 +33,7 @@
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#include <algorithm>
+#include <cctype>
#include <cstdio>
#include <map>
#include <set>