Fix OSX building
Fix OSX building

OSX doesn't support eventd, so don't build executables that try to use
it.


Former-commit-id: 3f6777387dfcbda0d2f9413d10ab8b084339fff5
tacketar/lstore,PerilousApricot/lstore,PerilousApricot/lstore,tacketar/lstore,accre/lstore,tacketar/lstore,accre/lstore,tacketar/lstore,PerilousApricot/lstore,PerilousApricot/lstore,accre/lstore,accre/lstore