1 files changed, 2 insertions, 1 deletions
diff --git a/gdb/ax-gdb.h b/gdb/ax-gdb.h
index 3e1006a..b091384 100644
--- a/gdb/ax-gdb.h
+++ b/gdb/ax-gdb.h
@@ -20,7 +20,8 @@
 
 #ifndef AX_GDB_H
 #define AX_GDB_H
-
+
+struct expression;
 
 /* Types and enums */