Re: [PR PATCH] [Closed]: sagemath: update to 9.7

[ahesford <ahesford@users.noreply.github.com>]

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There's a closed pull request on the void-packages repository

sagemath: update to 9.7
https://github.com/void-linux/void-packages/pull/39876

Description:
[EDIT] this ticket includes:
 - updates to flintlib, arb, singular, pari, gp2c, eclib, giac, gap (all those require recompilation of sagemath)
 - revbump for lcalc, python3-cysignals, python3-cypari2 b/c the soname change for libpari

Everything seems to be working ok, this is now ready for merging.

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With respect to the original description:
 - #39838, #39840, #39872 are already merged.
 - #39846 is not included here as it won't force rebuild
 - #39866 was moved here
 - matplotlib 3.6.1 is working now

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This includes #39838, #39840, #39846, #39872, #39866, also update eclib-20220621.

For now I'm reverting python3-matplotlib to 3.5.3_1 since 3.6.0_1 gives a lot of problems (#39857 adds python3-contourpy which will solve some, but I think there are more issues).

I want to make sure everything works ok and the full testsuite passes as is. Then I'll just move matplotlib back to 3.6.0_1 and try to see if it's feasible to fix or workaround the issues (sagemath-the-distro is still on matplotlib 3.5.2 and I didn't find anything about the update to 3.6.0)

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#### Testing the changes
- I tested the changes in this PR: currently running the testsuite in --long after the update of singular.

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