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-rw-r--r--src/include/fst/relabel.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/include/fst/relabel.h b/src/include/fst/relabel.h
index 685d42a..dc675b6 100644
--- a/src/include/fst/relabel.h
+++ b/src/include/fst/relabel.h
@@ -34,6 +34,10 @@ using std::vector;
#include <fst/test-properties.h>
+#include <tr1/unordered_map>
+using std::tr1::unordered_map;
+using std::tr1::unordered_multimap;
+
namespace fst {
//