[Yhc] buildbot failure in macosx_x86

The Buildbot has detected a failed build of macosx_x86. Full details are available at: http://www.indiegigs.co.uk:8010/macosx_x86/builds/55 Buildbot URL: http://www.indiegigs.co.uk:8010/ Buildslave for this Build: macosxx86 Build Reason: Build Source Stamp: HEAD Blamelist: Andrew Wilkinson <aw@cs.york.ac.uk> BUILD FAILED: failed yhc sincerely, -The Buildbot