Fixes OS X lib script to build SDL without X11 (caused error on Mountain Lion)

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13165 3db68df2-c116-0410-a063-a993310a9797
Automated build.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13166 3db68df2-c116-0410-a063-a993310a9797
Merge remote-tracking branch 'remotes/trunk'