build/pkgs/glpk/distros/homebrew.txt: Enable glpk again

[mkoeppe]

From #29586.

In #24824 we upgraded to GLPK 4.65, released 2018-02-16.
This version of GLPK prints warning messages
"Long-step dual simplex will be used".

Many distros patch GPLK 4.65 to not print
these messages, but Homebrew does not.

[This is also
fixed in GLPK
but there has been no release of GLPK since then,
and the GLPK maintainer is currently
unable to work on it.]

Since with #29317 we ignore the warning message in doctests,
we can again use Homebrew's GLPK.

CC: @jhpalmieri @slel @dimpase @mwageringel

Component: porting

Author: Matthias Koeppe

Branch/Commit: fcee9ad

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/29587

[mkoeppe]

Branch: u/mkoeppe/build_pkgs_glpk_distros_homebrew_txt__enable_glpk_again

[mkoeppe]

New commits:

fcee9ad

build/pkgs/glpk/distros/homebrew.txt: Enable glpk again

[mkoeppe]

Author: Matthias Koeppe

[mkoeppe]

Commit: fcee9ad

[dimpase]

comment:4

ok

[dimpase]

Reviewer: Dima Pasechnik

[mkoeppe]

comment:5

Thanks!

[slel]

comment:7

I asked on the Homebrew Discourse about opening an issue
for fixing the Homebrew recipe for GLPK:

• https://discourse.brew.sh/t/patch-glpk-4-65-to-make-dual-simplex-warning-an-informational-message/7590

[mkoeppe]

comment:8

Anyone else see singular segfaults with this on homebrew? https://github.com/mkoeppe/sage/runs/624792671

[mwageringel]

comment:9

I do not see those segfaults on my end, using Homebrew's GLPK.

[jhpalmieri]

comment:10

Me neither. I see two doctest failures:

File "src/sage/numerical/backends/glpk_backend.pyx", line 2287, in sage.numerical.backends.glpk_backend.GLPKBackend.print_ranges
Failed example:
    p.print_ranges()
Expected:
    glp_print_ranges: optimal basic solution required
    1
Got:
    1

and

File "src/sage/libs/glpk/error.pyx", line 100, in sage.libs.glpk.error.setup_glpk_error_handler
Failed example:
    res = p.solve()
Expected:
          0: obj = ...
Got:
    <BLANKLINE>

[mwageringel]

comment:11

Yes, that is #29493.

[vbraun]

Changed branch from u/mkoeppe/build_pkgs_glpk_distros_homebrew_txt__enable_glpk_again to fcee9ad