add a return value to assignTracks

Related to #1801.

diff --git a/lib/ortho/ortho.c b/lib/ortho/ortho.c
index b8cee0f0d4cb7f04a32f568e8078dd1611541ecb..f760d13b3bd9fa8f68434ff0f6d16da15eeeca42 100644 (file)
--- a/lib/ortho/ortho.c
+++ b/lib/ortho/ortho.c
@@ -1072,7 +1072,7 @@ add_p_edges (Dt_t* chans, maze* mp)
     }
 }
 
-static void
+static int
 assignTracks (maze* mp)
 {
     /* Create the graphs for each channel */
@@ -1090,6 +1090,8 @@ assignTracks (maze* mp)
     /* Assign the tracks after a top sort */
     assignTrackNo (mp->hchans);
     assignTrackNo (mp->vchans);
+
+    return 0;
 }
 
 static double