-int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o, int);
-int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o, int);
-int bind_merge(struct cache_entry **src, struct unpack_trees_options *o, int);
-int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o, int);
+int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o);
+int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o);
+int bind_merge(struct cache_entry **src, struct unpack_trees_options *o);
+int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o);