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-rw-r--r--Utilities/cmjsoncpp/include/json/writer.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/Utilities/cmjsoncpp/include/json/writer.h b/Utilities/cmjsoncpp/include/json/writer.h
index dc9e46f..397bf6a 100644
--- a/Utilities/cmjsoncpp/include/json/writer.h
+++ b/Utilities/cmjsoncpp/include/json/writer.h
@@ -9,6 +9,7 @@
#if !defined(JSON_IS_AMALGAMATION)
#include "value.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <iosfwd>
#include <vector>
#include <string>