Help welcome (but not required) for finishing LibreOffice 6.0 update or improving LO package

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We need a new LibreOffice Fresh before 18.03.

I have a good chance of doing it in time, but in case anyone wants to speed the things up without re-doing all that I have done…

I think I can already make it build, but the tests fail. Rebuilds take a lot of background time, and I am not ready to commit foreground (human) time to doing detailed nix-shell debugging right now.

The current problem is that the LibreOffice test suite complains about no fonts being available despite FONTCONFIG_FILE being set. I haven't finished building with Liberation fonts added to the font configuration yet.

If someone wants to suggest some changes or try to take over, my current state is in the branch https://github.com/7c6f434c/nixpkgs/tree/libreoffice-6

The source list generator fixes are already in master because they are purely additive.

I will likely fix the issues myself… eventually, but help appreciated.

Also, if someone wants to propose any changes like a fix for the .desktop files, now is a good time.

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Update: made sure that Calibri maps to the metrically compatible Carlito, as LibreOffice expects.

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Update:

• good: added required fonts, new rendering test failures stopped coming up — see makeFontsConf and extra include directories #36116 for a discussion of a better long-term solution
• bad: a test failure SwUiWriterTest::testTdf115013 seems to be failing in a correctness-related way, which I don't like and I am not sure if it is a good idea to comment out this test (unlike rendering).

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https://bugs.documentfoundation.org/show_bug.cgi?id=115013

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Update: if I disable this test, everything builds fine, and launching LibreOffice/creating a spreadhseet works. Sigh.

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Update: even though adding the fonts seems to solve some of the problems with tests, there are still tests that fail on rendering, so I will not try to clean up the excluded-tests list. Does anyone want to pick this up?

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Update: squashed the commits, will probably merge as-is unless some feedback happens today. «Please wait, I will comment next week» does count as feedback.

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Gave up and pushed. 6.0.2 is already out. Sigh.