This skips a bit more than is absolutely needed (only the demo-exec run
after demo-nopic and demo-make would need to be skipped), but I don't
see a big problem with that. We can fix that when we rename tests to
have unique names (e.g., to allow parallel-tests).
Would it make sense to test for /etc/selinux only
if test "$build" = "$host"&& test -d /etc/selinux ...
though? I'm not quite sure myself actually.
I don't have much experience with selinux, the only other nits I see is
that you want a ;; after the first esac you added, and bump copyright
years.