1 files changed, 1 insertions, 0 deletions
diff --git a/bfs.h b/bfs.h
index aedd2c0..441993b 100644
--- a/bfs.h
+++ b/bfs.h
@@ -97,6 +97,7 @@ void free_cmdline(cmdline *cl);
 // Predicate evaluation functions
 bool eval_access(const expression *expr, eval_state *state);
 bool eval_delete(const expression *expr, eval_state *state);
+bool eval_empty(const expression *expr, eval_state *state);
 bool eval_false(const expression *expr, eval_state *state);
 bool eval_hidden(const expression *expr, eval_state *state);
 bool eval_name(const expression *expr, eval_state *state);