Opened 11 months ago
Last modified 4 weeks ago
#32074 new task
Meta-ticket: Remove support for outdated distros
Reported by: | dimpase | Owned by: | |
---|---|---|---|
Priority: | major | Milestone: | sage-9.7 |
Component: | build | Keywords: | |
Cc: | mkoeppe | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
In particular, CI is running tests on post-EOL distros.
Here we collect tickets in roughly chronological order that required special care for old platforms, as well as tickets that drop support for old platforms.
Sage 9.4:
- #31526 (Drop support for optional packages with system gcc 4.x on
ubuntu-trusty
,debian-jessie
,linuxmint-17
,centos-7
)
Sage 9.5:
- #32281:
{ubuntu-trusty,linuxmint-17}-gcc_spkg
:numpy
,ntl
,nauty
, ... fail to build - #32405
sage-bootstrap-python
: Reject ancient pythons that do not support SNI - #32515
linuxmint-17
,ubuntu-trusty
:scipy
build error withpybind11
- #32907 Update singular to 4.2.1p2 (required patching flint for
ubuntu-trusty
) - #25009
primecount
required patching forubuntu-trusty
etc. and would require patching fordebian-jessie
- #32947 Drop support for
debian-jessie
- gcc 4.9; past EOL LTS, extended LTS (commercial, separate from Debian, till June 2022), see https://wiki.debian.org/DebianReleases). - #33068 GH Actions: Remove
ubuntu-groovy
Sage 9.6:
- no changes to supported platforms
- #32965: tox / GH Actions: Add fedora/centos variants using devtoolset
- #32966: tox / GH Actions: Add ubuntu variants using ppa:ubuntu-toolchain-r
Sage 9.7:
- #33316 Drop support for GCC < 6.3, motivated by stricter compiler requirements in numpy 1.22.x, scipy 1.8.x (#32423), linbox (#32959), e-antic/Normaliz (#31588):
ubuntu-trusty
14.04 is long past "standard support", but EOL has been extended to Apr 2024. Replace by ubuntu-trusty-toolchain-gcc_9- Likewise for
ubuntu-xenial
: replace by ubuntu-xenial-toolchain-gcc_9 centos-7
has EOL June 2024, gcc 4.x. Replace by centos-7-devtoolset-gcc_11linuxmint-17
had EOL 2019. gcc 4.x. Droplinuxmint-18
had EOL 2021, gcc 5.4. Dropslackware-14.2
with gcc 5.5. Drop
Other candidates for removal:
- anything with gcc 6 and older (no longer supported)
- fedora 32 and earlier
- macOS 10.13 and earlier
Change History (30)
comment:1 Changed 11 months ago by
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I don't know anything about the build system, so maybe this is noise, but regarding the problem with __builtin_smull_overflow
at #31694 and #31585 ...
I think __builtin_smull_overflow
was introduced in gcc 5 and clang 3.4, so I thought it was safe to use. (I think avoiding it would make the code both more complicated and less efficient.)
In the link to the debian jessie run, I see "Unpacking gcc-4.9 (4.9.2-10+deb8u2)" and "Unpacking g++-4.9 (4.9.2-10+deb8u2)". If this means it is using gcc 4.9, then that would explain the problem. I thought support for gcc 4.9 was dropped in #31526, which means we should not be worrying about this, but I guess I hadn't read it carefully, because it seems to only allow optional packages to drop support for 4.x. Is the problem with ubuntu trusty also from using gcc 4.x?
I don't think I should have much of a say, but I am certainly +1 on dropping support for gcc 4.x entirely. That is a really old compiler.
comment:7 Changed 11 months ago by
What about Mac OS? I've seen a claim that Apple officially supports the three most recent versions of the OS — currently 10.14, 10.15, and 11 — and (for example) Mac OS 10.11 became unsupported in August 2018, 10.12 in November 2019, 10.13 in November 2020. I don't know what impact dropping support for 10.11 would have on Sage, but I think I saw a recent post in sage-devel or sage-support from someone struggling to install Sage on this OS.
comment:8 Changed 11 months ago by
https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners only has Catalina and Big Sur. So these systems are the only ones that are systematically tested.
These are also the only versions that we claim to support (for building Sage from source) in https://wiki.sagemath.org/ReleaseTours/sage-9.3#Availability_of_Sage_9.3_and_installation_help
Without infrastructure for testing, I would be reluctant to make any claims regarding support for older OS releases.
Travis CI does support a wider range of macOS releases, keyed to XCode versions - https://docs.travis-ci.com/user/reference/osx/#macos-version, going back to OS X 10.11. I used to have a workflow on Travis CI to run some superficial tests on a built binary distribution on older macOS versions (see #31133). But there seemed to be little interest in this at the time, and I have not updated these scripts.
Marc Culler appears to be testing his new binary distribution on some older macOS versions.
comment:9 Changed 11 months ago by
I think Apple is supporting 3 macOS releases, including the current, 11. This makes everything older than macOS 10.14 obsolete.
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- Milestone changed from sage-9.6 to sage-9.7
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gentoo-python3.7
is outdated too since Michał Górny disabled python3.7 in Gentoo several weeks ago :(