add some gv language-binding demos to the distributions

diff --git a/tclpkg/gv/demo/modgraph.rb b/tclpkg/gv/demo/modgraph.rb
index c57b6bafd0c4065515a03ec74efd1a9f1d92dd03..87c2606ddbe90a53ca997e00b6730c279875550a 100755 (executable)
--- a/tclpkg/gv/demo/modgraph.rb
+++ b/tclpkg/gv/demo/modgraph.rb
@@ -4,7 +4,7 @@
 
 # author: John Ellson <ellson@research.att.com>
 
-require '/usr/lib/graphviz/ruby/gv.so'
+require 'gv.so'
 
 G = Gv.digraph("G")
 N = Gv.protonode(G)
@@ -39,4 +39,4 @@ end
 f.close
 
 Gv.layout(G, 'dot')
-Gv.render(G, 'gtk')
+Gv.render(G, 'xlib')