* src/vcg.c (complain.h): Include it.

Unepitaize `return' invocations.
[NDEBUG] (main): Remove.
* src/vcg.h (node_t, edge_t, graph_t): Constify the char * memebers.
* src/files.c (open_files): Initialize graph_obstack.
* src/print_graph.c (print_actions): CPP out useless code.
(print_core): Don't output the last `n' in labels.
Use `quote'.
* src/files.c (output_files): Output the VCG file.
* src/main.c (main): Invoke print_graph ();

src/files.c

@@ -349,6 +349,7 @@ open_files (void)
   obstack_init (&defines_obstack);
   obstack_init (&guard_obstack);
   obstack_init (&output_obstack);
+  obstack_init (&graph_obstack);
 }
 
 
@@ -407,4 +408,7 @@ output_files (void)
     /* We used to use just .out if spec_name_prefix (-p) was used, but
        that conflicts with Posix.  */
     obstack_save (&output_obstack, stringappend (short_base_name, EXT_OUTPUT));
+
+  if (graph_flag)
+    obstack_save (&graph_obstack, stringappend (short_base_name, ".vcg"));
 }