Upgrade to GAP 4.8.10

[slel]

GAP 4.8.10 was released on 2018-01-15.

Release announcement:

• https://mail.gap-system.org/pipermail/forum/2018/005649.html

GAP 4.8.10 page:

• https://www.gap-system.org/Releases/4.8.10.html

Changelog:

• https://www.gap-system.org/Manuals/doc/changes/chap2.html#X7C4288E67EBB512B

From SageMath 7.6.beta3 to the current SageMath 8.2.beta3,
we use GAP 4.8.6, introduced in #20914. Time to upgrade!

Tarball for GAP:

• https://www.gap-system.org/pub/gap/gap48/tar.bz2/gap4r8p10_2018_01_15-13_02.tar.bz2

Tarballs for database_gap, gap_packages, libgap:

• ...
• ...
• https://bitbucket.org/sebasguts/libgap/downloads/libgap-4.8.10.tar.gz

Note that #22626 will upgrade to the upcoming GAP 4.9,
but it would be nice to upgrade to GAP 4.8.10 for now.

CC: @dimpase @kiwifb @jdemeyer @slel @vbraun @timokau @sebasguts @nthiery @embray

Component: packages: standard

Keywords: GAP, database_gap, gap_packages, libgap

Reviewer: Travis Scrimshaw

Issue created by migration from https://trac.sagemath.org/ticket/24427

[slel]

comment:1

Changing the goal of this ticket from "GAP 4.8.9" to "GAP 4.8.10".

[dimpase]

comment:2

GAP 4.9 beta is already out.

https://www.gap-system.org/pub/gap/gap-4.9/beta/

[slel]

comment:3

I suggest getting GAP 4.8.10 in Sage 8.2, if it's not too much work, since:

• GAP 4.9 might still be in beta when Sage 8.2 is released.
• GAP 4.9 has major changes, so Upgrade to GAP 4.10 #22626 (Upgrade to GAP 4.9) might take time.

[slel]

comment:4

Although the release of GAP 4.9.1 is approaching, I don't know if it will still be a beta
or considered the official 4.9 release.

It might still be possible to get GAP 4.8.10 in Sage 8.2. What are the steps to produce
tarballs for database_gap, gap_packages, libgap?

[dimpase]

comment:5

Replying to @slel:

Although the release of GAP 4.9.1 is approaching, I don't know if it will still be a beta
or considered the official 4.9 release.

It might still be possible to get GAP 4.8.10 in Sage 8.2. What are the steps to produce
tarballs for database_gap, gap_packages, libgap?

Updating libgap is potentially time-consuming and error-prone. See https://bitbucket.org/vbraun/libgap

[slel]

comment:6

Replying to @dimpase:

Replying to @slel:

Although the release of GAP 4.9.1 is approaching, I don't know
if it will still be a beta or considered the official 4.9 release.

It might still be possible to get GAP 4.8.10 in Sage 8.2. What are the
steps to produce tarballs for database_gap, gap_packages, libgap?

Updating libgap is potentially time-consuming and error-prone. See
https://bitbucket.org/vbraun/libgap

Hard to know in advance, but one might hope that minor version bumps
in GAP would be relatively easy to deal with.

The upgrade to GAP 4.8.10 in the ArchLinux packaging of SageMath
seems pretty straightforward:

https://git.archlinux.org/svntogit/community.git/tree/trunk/PKGBUILD?h=packages/libgap#n20

[dimpase]

comment:7

This looks fishy - just version bumps...

[jdemeyer]

comment:8

Worse than fishy: plain wrong!

It looks like they took the 4.8.6 tarball and artificially renamed it 4.8.10.

[slel]

comment:9

In Debian they use GAP 4.8.8, does that mean they produced libgap for 4.8.8?

[dimpase]

comment:10

Replying to @slel:

In Debian they use GAP 4.8.8, does that mean they produced libgap for 4.8.8?

Probably they did. Last time I worked on upgrade to 4.8.6, I used Debian's work, IIRC.

[nthiery]

Attachment: gap-4.8.10.tar.bz2.gz

gap 4.8.10 sources after running spkg-src

[nthiery]

Branch: u/nthiery/upgrade_to_gap_4_8_10

[nthiery]

comment:12

To get the ball rolling, I updated the GAP sources according to the instructions in the SPKG.
I haven't run the tests yet (rebuilding my Sage).

---

New commits:

3c56a1b	24427: Upgrade to gap 4.8.10, first step: upgrade the sources
a543971	24427: expanded upgrade instructions for gap's spkg

[nthiery]

Commit: a543971

[tscrim]

comment:13

Just noting #13426, which adds more things to gap_packages.

[slel]

comment:14

Sebastian Gutsche produced a tentative tarball for libgap-4.8.10:
https://bitbucket.org/sebasguts/libgap/downloads/libgap-4.8.10.tar.gz

[kiwifb]

comment:15

We should note that the only thing changing since 4.8.8 is the packages distributed with gap.
https://www.gap-system.org/Manuals/doc/changes/chap2.html#X803A9F0685295E01

Core gap code and databases have not changed since 4.8.8. The libgap for 4.8.8 that debian made should be identical for 4.8.10.

[nthiery]

comment:16

Thanks François for the info.

The branch as is is not yet functional, as libgap needs to be the same version as gap.
Sebastian's libgap above is missing the prefixing; he will work on this tonight, and then I'll update this branch and rerun the tests.

[slel]

comment:18

Replying to @nthiery:

The branch as is is not yet functional, as libgap needs to be the same version as gap.
Sebastian's libgap above is missing the prefixing; he will work on this tonight, and then I'll update this branch and rerun the tests.

Did the prefixing happen in the end? What remains to be done here?

[fchapoton]

comment:19

can we close this one now ?

[tscrim]

Changed commit from a543971 to none

[tscrim]

Reviewer: Travis Scrimshaw

[tscrim]

Changed branch from u/nthiery/upgrade_to_gap_4_8_10 to none

[tscrim]

comment:20

I believe so.

[embray]

comment:21

Superseded by #22626.