request for exp-run, comments: eliminate USE_X_PREFIX

[Dmitry Marakasov]

Hi!

Thought we've switched to modular xorg more than a year ago, some
ports still define USE_XLIB and thus depend on all X libraries (even
when it's not really required). Which is even worse, USE_XLIB is
implicitely defined for ports that define USE_IMAKE, some of which
don't require any X libraries at all.

This patch adds USE_XORG to (hopefully) all USE_IMAKE ports and
some (but not all) USE_XLIB ports. It also makes USE_IMAKE ports
no more implicitely define USE_XLIB and eliminates all mentions of
USE_X_PREFIX from bsd.port.mk. It requires an exp-run, as though
I've tested all changed ports in a local tinderbox, there may be
ports with incomplete X dependencies further down dependency chains.

http://people.freebsd.org/~amdmi3/xprefix_obliterate.patch

Comments are welcome. Actually I think we could drop X11BASE related
bits as well.

-- 
Dmitry Marakasov   .   55B5 0596 FF1E 8D84 5F56  9510 D35A 80DD F9D2 F77D
amdmi3 at amdmi3.ru  ..:  jabber: amdmi3 at jabber.ru    http://www.amdmi3.ru