Fixed a regression causing the in-source libdispatch headers to be used despite a pre-installed libdispatch version
Fixed a regression causing the in-source libdispatch headers to be used despite a pre-installed libdispatch version

git-svn-id: ff420cdfd4b96e96fca1ec56388a20c3b5ac679c@545 9e4c620c-c391-4b63-a7fb-4924991ea895

mykeul/xdispatch,mykeul/xdispatch,mykeul/xdispatch,mykeul/xdispatch,mykeul/xdispatch