issue #575 - Cannot build x86_64 or ppc64 on Mac OS X
applied patch by Jake Petroules

git-svn-id: http://svn.synergy-project.org/trunk@2422 33c40d52-04ba-11de-a43f-ff96a2b7a9af
[no-issue]
revert to r2421

git-svn-id: http://svn.synergy-project.org/trunk@2423 33c40d52-04ba-11de-a43f-ff96a2b7a9af