Rev 2525: Handle dot not being installed in http://people.ubuntu.com/~robertc/baz2.0/integration

[Robert Collins]

At http://people.ubuntu.com/~robertc/baz2.0/integration

------------------------------------------------------------
revno: 2525
revision-id: robertc at robertcollins.net-20070620030958-6ou886tyo5zpc3u4
parent: robertc at robertcollins.net-20070619005518-r2n8pmtgnf9lq9yo
committer: Robert Collins <robertc at robertcollins.net>
branch nick: integration
timestamp: Wed 2007-06-20 13:09:58 +1000
message:
  Handle dot not being installed
modified:
  Makefile                       Makefile-20050805140406-d96e3498bb61c5bb
=== modified file 'Makefile'
--- a/Makefile	2007-06-19 00:48:22 +0000
+++ b/Makefile	2007-06-20 03:09:58 +0000
@@ -132,7 +132,7 @@
 
 # build a png of our performance task list
 doc/developers/performance.png: doc/developers/performance.dot
-	dot -Tpng $< -o$@
+	@dot -Tpng $< -o$@ || echo "Dot not installed; skipping generation of $@"
 
 
 # make bzr.exe for win32 with py2exe