[bind10-dev] Automake 1.13 and parallel tests

[Michal 'vorner' Vaner]

Hello

Since the automake-1.13, it switches to running tests in some kind of parallel
test harness. From their news:

    Starting from the next major Automake version (1.13), the parallel
    testsuite harness (previously only enabled by the 'parallel-tests'
    option) will become the default one; the older serial testsuite
    harness will still be available through the use of the 'serial-tests'
    option.

As we have only one „run_unittests“ binary in each directory, we don't take any
advantage from it. If we had, the tests would probably start failing
unexpectedly, since we use stuff like ports to bind to, and the tests could
fight each other over them. And there's another bad result. It doesn't output
the test output to screen, but to a log file, showing only a summary that a test
passed or failed. If it fails, it says „Look into this file to see what
happened“. That slows down development (at least for me), because when a test
fails for me (which happens quite often due to our TTD), I need to go and open
the file instead just looking at the output.

So I propose applying this to our configure.ac to return the original behaviour.
Any objections?

Thank you

-- 
Anyone seen smoking will be considered on fire and will be put out immediately.

Michal 'vorner' Vaner
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