[Midnightbsd-cvs] mports: xorg.mk: detect xorg version when necessary.

[laffer1 at midnightbsd.org]

Log Message:
-----------
detect xorg version when necessary.

Modified Files:
--------------
    mports/Mk/extensions:
        xorg.mk (r1.8 -> r1.9)
        (http://cvsweb.midnightbsd.org/mports/Mk/extensions/xorg.mk?r1=1.8&r2=1.9)