Index: lily/key-signature-interface.cc |
diff --git a/lily/key-signature-interface.cc b/lily/key-signature-interface.cc |
index b6f314a6853a1726c517b6f5117f734bb8922968..ea1200a5402c99d8214259ef71eda53316d81704 100644 |
--- a/lily/key-signature-interface.cc |
+++ b/lily/key-signature-interface.cc |
@@ -29,6 +29,8 @@ |
#include "rational.hh" |
#include "lily-imports.hh" |
+using std::string; |
+ |
struct Key_signature_interface |
{ |
DECLARE_SCHEME_CALLBACK (print, (SCM)); |