I shouldn't have to do this. This should have been spotted by the loser
who changed tcsh's Makefile. Brad should have noticed it no longer builds
and fixed this, along with mtree/BSD.local.dist...
if a port sets FAKE=Yes, this means it can be `pre'-installed elsewhere,
with DESTDIR set to WRKINST (=work/fake-${ARCH} by default).
the infrastructure takes care of pre-install/do-install/post-install targets,
assuming those install stuff under PREFIX.
To help ports to cope with DESTDIR, you can set FAKE_FLAGS and FAKE_TARGET
(used for the fake installation).
Ports with FAKE=Yes are the way to go: they can be packaged directly without
a real installation, and the installation proceeds from the package, thus
forcing porters to check the package.