Automatic reply from Jenkins: Can I test this?

Jenkins: test this please

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Test PASSed.

would be great, but I'd love to see a dedicated unit test for this before we merged this in

are you willing to give this a shot, @geimer? let me know if you need any help

I should've asked you the same for #1164, so if you're up for it, add one for mpi_family too while you're at it (or enhance the existing ones to check for None with a non-compiler toolchain)

Ah, wait, #1164 isn't merged yet, so the unit tests for mpi_family should be added there.

Jenkins: ok to test

@geimer: looks great, thanks for tackling the unit test too!

I'll merge this in if Jenkins is happy with it.

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Test PASSed.

Going in, thanks @geimer!