Add comparison predicates

1 files changed, 1 insertions, 0 deletions

diff --git a/fns.h b/fns.h
index 54db8dc..6d545e9 100644
--- a/fns.h
+++ b/fns.h
@@ -16,6 +16,7 @@ Term *mkstring(Rune *);
 
 /* eval.c */
 int evalquery(Term *, Term *, Binding **);
+int unify(Term *, Term *, Binding **);
 
 /* repl.c */
 void repl(Term *);