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-rw-r--r--lib/Support/raw_ostream.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index f020681e6f..af6dc7cf48 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -20,6 +20,7 @@
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/ADT/STLExtras.h"
+#include <cctype>
#include <sys/stat.h>
#include <sys/types.h>