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Diffstat (limited to 'compilerplugins/clang/elidestringvar.cxx')
-rw-r--r--compilerplugins/clang/elidestringvar.cxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/compilerplugins/clang/elidestringvar.cxx b/compilerplugins/clang/elidestringvar.cxx
index 89e740d21904..172d7e8d81c0 100644
--- a/compilerplugins/clang/elidestringvar.cxx
+++ b/compilerplugins/clang/elidestringvar.cxx
@@ -13,6 +13,8 @@
#include <cassert>
#include <map>
+#include "llvm/ADT/Optional.h"
+
#include "check.hxx"
#include "plugin.hxx"