* go to buildlink with fixesproto4 if using monolithic X.
* bump API_DEPENDS, older will be handled by fixesproto4.
* set xextprot requirement if using fixesproto from pkgsrc (XXX >=5.0).
* simplify builtin.mk, older will be handled by fixesproto4.
X.Org found in NetBSD-current.
Thanks a lot to all who helped, especially Matthias Scheler who did
repeated tests on Mac OS X and older versions of NetBSD to make sure the
support for those platforms wouldn't be broken (or at least, not fatally,
as I would still expect a few hiccups here and there, because there is
only so much one can test in such limited time).
On the infrastructure side, this branch brings pkgconfig-builtin.mk, in
order to write very easily new builtin.mk files. It can actually handle
more than just pkgconfig files, but it will provide a version if it finds
such a file. x11.builtin.mk has also been made more useful and now all
existing (and future!) native-X11-related builtin.mk files should include
it.
.if foo || bar
BAZ= no
.else
BAZ= yes
.endif
different from
.if foo
BAZ= no
.elif bar
BAZ= no
.else
BAZ= yes
.endif
in some situations exposed in this builtin.mk. Workaround this for now.
