Index: glpk-4.65/src/draft/glpios01.c
===================================================================
--- glpk-4.65.orig/src/draft/glpios01.c
+++ glpk-4.65/src/draft/glpios01.c
@@ -1491,6 +1491,7 @@ int ios_add_row(glp_tree *tree, IOSPOOL
 IOSCUT *ios_find_row(IOSPOOL *pool, int i)
 {     /* find row (constraint) in the cut pool */
       xassert(0);
+      return 0;
 }
 #else
 IOSCUT *ios_find_row(IOSPOOL *pool, int i)
@@ -1550,6 +1551,7 @@ IOSCUT *ios_find_row(IOSPOOL *pool, int
 void ios_del_row(glp_tree *tree, IOSPOOL *pool, int i)
 {     /* remove row (constraint) from the cut pool */
       xassert(0);
+      return;
 }
 #else
 void ios_del_row(glp_tree *tree, IOSPOOL *pool, int i)