bug#68860: race condition with make recheck

[Bogdan]

Hello.

Thank you for reporting the issue.

The attached patch should fix the problem. It may be a bit of an
overkill, perhaps just one of the fixes would suffice, but it seems to
work at least.

I've re-made your useful script into an Automake test. Since
non-deterministic defects may be hard to find and fix, and certainly
harder to test if they're fixed, the new version simply runs parallel
'make recheck' a few times "just in case". Without the fix, the test
failed in the first or the second run. With the fix, the test (which
runs 'make recheck' 5 times) passed 5 times in a row. This *should* be
a decent sample.

All tests with "check" in the name pass.

The test and my patch can, of course, be adapted and further changed.

--
Regards - Bogdan ('bogdro') D.                 (GNU/Linux & FreeDOS)
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automake-recheck-race-mail.diff
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