fix rankdir=RL and rankdir=BT

diff --git a/lib/common/input.c b/lib/common/input.c
index 02360a628acd69b45960263995fea455bc2dec5a..3cae9ddf917195f8f9d29fab007210eb3e6536cb 100644 (file)
--- a/lib/common/input.c
+++ b/lib/common/input.c
@@ -517,7 +517,7 @@ void graph_init(graph_t * g, boolean use_rankdir)
            rankdir = RANKDIR_RL;
     }
     if (use_rankdir)
-       SET_RANKDIR (g, (rankdir << 2) || rankdir);
+       SET_RANKDIR (g, (rankdir << 2) | rankdir);
     else
        SET_RANKDIR (g, (rankdir << 2));