add a return value to addPEdges

Related to #1801.

diff --git a/lib/ortho/ortho.c b/lib/ortho/ortho.c
index ff9d89960a2710c07023c8dada9d1b2fbc003935..13f01bbce2cbef37b986319526ebc2a710f40ec3 100644 (file)
--- a/lib/ortho/ortho.c
+++ b/lib/ortho/ortho.c
@@ -989,7 +989,7 @@ removeEdge(segment* seg1, segment* seg2, int dir, maze* mp)
     remove_redge (chan->G, ptr1->ind_no, ptr2->ind_no);
 }
 
-static void
+static int
 addPEdges (channel* cp, maze* mp)
 {
     int i,j;
@@ -1061,6 +1061,8 @@ addPEdges (channel* cp, maze* mp)
            }
        }
     }
+
+    return 0;
 }
 
 static int