Only do the OSVERSION check on FreeBSD.


git-svn-id: https://trillian.chruetertee.ch/svn/ports/branches/experimental@1518 058c260c-8361-11dd-a0ac-aa2bafec7d09
Actualy add some '\' so this works, woops.


git-svn-id: https://trillian.chruetertee.ch/svn/ports/branches/experimental@1519 058c260c-8361-11dd-a0ac-aa2bafec7d09