From 3310002ddb45deb0c56190a7a34072366468ea7c Mon Sep 17 00:00:00 2001
From: north <devnull@localhost>
Date: Fri, 28 Sep 2007 14:38:43 +0000
Subject: [PATCH] fix bug 1182

---
 lib/dotgen/conc.c     | 2 +-
 lib/dotgen/dotprocs.h | 1 +
 lib/dotgen/rank.c     | 6 +++---
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/lib/dotgen/conc.c b/lib/dotgen/conc.c
index 0a64213fd..8160e4bde 100644
--- a/lib/dotgen/conc.c
+++ b/lib/dotgen/conc.c
@@ -146,7 +146,7 @@ static void rebuild_vlists(graph_t * g)
 
     for (r = GD_minrank(g); r <= GD_maxrank(g); r++)
 	GD_rankleader(g)[r] = NULL;
-
+    dot_scan_ranks(g);
     for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
 	infuse(g, n);
 	for (e = agfstout(g, n); e; e = agnxtout(g, e)) {
diff --git a/lib/dotgen/dotprocs.h b/lib/dotgen/dotprocs.h
index d7e0ec7c8..9ad4c4509 100644
--- a/lib/dotgen/dotprocs.h
+++ b/lib/dotgen/dotprocs.h
@@ -38,6 +38,7 @@ extern "C" {
     extern void dot_cleanup(graph_t * g);
     extern void dot_layout(Agraph_t * g);
     extern void dot_init_node_edge(graph_t * g);
+    extern void dot_scan_ranks(graph_t * g);
     extern void expand_cluster(Agraph_t *);
     extern Agedge_t *fast_edge(Agedge_t *);
     extern void fast_node(Agraph_t *, Agnode_t *);
diff --git a/lib/dotgen/rank.c b/lib/dotgen/rank.c
index 8c05f2867..ec4f917d7 100644
--- a/lib/dotgen/rank.c
+++ b/lib/dotgen/rank.c
@@ -195,8 +195,8 @@ node_induce(graph_t * par, graph_t * g)
     }
 }
 
-static void 
-scan_ranks(graph_t * g)
+void 
+dot_scan_ranks(graph_t * g)
 {
     node_t *n, *leader = NULL;
     GD_minrank(g) = MAXSHORT;
@@ -261,7 +261,7 @@ collapse_cluster(graph_t * g, graph_t * subg)
 	dot_rank(subg);
 	cluster_leader(subg);
     } else
-	scan_ranks(subg);
+	dot_scan_ranks(subg);
 }
 
 /* Execute union commands for "same rank" subgraphs and clusters. */
-- 
2.40.0