diff -r 94cdf82d4a0c libinterp/dldfcn/convhulln.cc
--- a/libinterp/dldfcn/convhulln.cc	Thu Aug 30 16:57:24 2012 -0400
+++ b/libinterp/dldfcn/convhulln.cc	Thu Aug 30 20:26:04 2012 -0500
@@ -187,7 +187,7 @@
                 {
                   // Should never happen with QJ.
                   error ("convhulln: qhull failed: option 'QJ' returned non-simplicial facet");
-                  return retval;
+                  break;
                 }
             }