native Xorg now used by default on some platforms

[matthew green <mrg%eterna.com.au@localhost>]

hi folks.


i've removed the MKXORG variable from the build system.  MKX11
once again controls building X11 or not, and a new X11FLAVOUR
variable can be set to Xorg or XFree86 to pick which version
to build.  the default for X11FLAVOUR for the amd64, i386,
macppc, shark, sparc & sparc64 platforms has been set to Xorg.
all other platforms still use XFree86 for now.

what does this mean for you?  if you has set MKXORG=yes and
MKX11=no to get native xorg up to now, you need to switch
back to MKX11=yes.

i plan to submit this for netbsd-5 shortly, switching the
default X11 there for the above platforms as well.


.mrg.