One other thing. Can you please replace all instances of "((ulimit -n" with "( (ulimit -n" in tests/testsuite? This fixes a portability bug in that script that may be relevant to the OpenBSD shell. This reflects the following patch that I just pushed:
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=6398c7a79c88621453b0f312a5007414ead59843
