Patch for egregious parser problems.

diff --git a/lib/cgraph/grammar.y b/lib/cgraph/grammar.y
index 7b13ba3dddadd5e62bfc2b484eef549abcff4171..d8cb343c6d0cd81752165078e27af95bdadad7c4 100644 (file)
--- a/lib/cgraph/grammar.y
+++ b/lib/cgraph/grammar.y
@@ -397,7 +397,7 @@ static void getedgeitems(int x)
                v = cons_list(S->nodelist.first);
                S->nodelist.first = S->nodelist.last = NILitem;
        }
-       else {if (S->subg) v = cons_subg(S->subg);}
+       else {if (S->subg) v = cons_subg(S->subg); S->subg = 0;}
        /* else nil append */
        if (v) listapp(&(S->edgelist),v);
 }