diff --git a/[refs] b/[refs]
index 90843937f573..d1bcbedadba3 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 17742dc743716eebbf5892add0e0bf91f541fc39
+refs/heads/master: 0597fcd08b858df83b9f20afd6035311d92c48f8
diff --git a/trunk/scripts/kconfig/expr.h b/trunk/scripts/kconfig/expr.h
index 218991b26d92..79ab6e746f53 100644
--- a/trunk/scripts/kconfig/expr.h
+++ b/trunk/scripts/kconfig/expr.h
@@ -206,6 +206,7 @@ struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
 struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
 void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
+struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
 
 void expr_fprint(struct expr *e, FILE *out);
 struct gstr; /* forward */