Assertion failed in test_misc -> test_submatrix

[orlitzky]

This was reported on Gentoo in https://bugs.gentoo.org/908449 where the full build/test logs are available. Note tha gcc-13.x was used.

=========================================
   m4ri 20200125: tests/test-suite.log
=========================================

# TOTAL: 14
# PASS:  13
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: test_misc
===============

submatrix: m:    2, n:  127, (   1,    1,    2,  127) ... passed
Assertion failed: highr-lowr > 0 (test_misc.c: test_submatrix: 81)
FAIL test_misc (exit status: 134)

[malb]

Mhhh, hard to debug from afar. I'm still on GCC 12.x though.

[orlitzky]

This was actually already resolved in https://bitbucket.org/malb/m4ri/issues/75 but the fix isn't in a release yet.

[malb]

I could cut a new release if it helps?

[orlitzky]

I patched our Gentoo package already, but it might prevent this from hitting someone else. It looks like there have been a good number of commits since 20200125.