t/lei-mirror: avoid make(1) jobserver warning

We can't control `make test' nor user-defined targets in
config.mak.  There's no need for a jobserver to run `make help',
anyways, so just let things be.

This also fixes the use of `gmake check' et al. on *BSDs where
various make flags confuse BSD make(1)

While we're at it, allow the test to run in the odd case make(1)
isn't available at all...

0 files changed, 0 insertions, 0 deletions