File ocaml-mccs.patch of Package ocaml-mccs

--- a/src/glpk/draft/glpios01.c
+++ b/src/glpk/draft/glpios01.c
@@ -1490,7 +1490,7 @@ int ios_add_row(glp_tree *tree, IOSPOOL
 #ifdef NEW_LOCAL /* 02/II-2018 */
 IOSCUT *ios_find_row(IOSPOOL *pool, int i)
 {     /* find row (constraint) in the cut pool */
-      xassert(0);
+      xassert(0); return NULL;
 }
 #else
 IOSCUT *ios_find_row(IOSPOOL *pool, int i)