if on MacOS X /opt/local exists assume MacPorts is installed and use that instead of Fink.
if on MacOS X /opt/local exists assume MacPorts is installed and use that
instead of Fink.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@35166 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT