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-rw-r--r--lib/antlr/antlr/CharScanner.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/antlr/antlr/CharScanner.h b/lib/antlr/antlr/CharScanner.h
index e553d64d..2e2ffc7c 100644
--- a/lib/antlr/antlr/CharScanner.h
+++ b/lib/antlr/antlr/CharScanner.h
@@ -10,6 +10,7 @@
#include <antlr/config.h>
+#include <functional>
#include <map>
#ifdef HAS_NOT_CCTYPE_H