[Debian-med-packaging] Bug#1055414: bedtools: FTBFS on i386: "intersect" tool failure

[Étienne Mollier]

Source: bedtools
Version: 2.31.0+dfsg-1
Severity: serious
Tags: ftbfs
Justification: ftbfs

Dear Maintainer,

While making a routine metadata update on a Debian patch against
bedtools, Salsa CI caught a build failure on i386[1] which I
could reproduce multiple times in sid and in testing with the
unmodified version of the package.

[1]: https://salsa.debian.org/med-team/bedtools/-/jobs/4891166

The relevant part of the build log shows the following
differences in the test suite of the "intersect" tool:

	    intersect.t22.p...0a1
	> chr1	0	30	one_block_one_exon_30bp	40	-	0	30	0,0,0	1	30,	0,	chr1	  0	 100	 exon1	 1	 +	 30
	fail
	    intersect.t22.q...1a2
	> chr1	80	110	one_block_one_exon_20bp	40	-	80	110	0,0,0	1	30,	0,	chr1	  0	 100	 exon1	 1	 +	 20
	fail

The tests are started from test/intersect/test-intersect.sh.
I'm not sure what change caused the build failure to appear.
The issue is not affecting amd64, nor armhf, which suggest
something very i386 specific.  I have not checked closely the
other CPU architectures yet.  The relevant upstream change that
introduced this code begins to date back from quite some time
ago[2] and the package builds with -ffloat-store for a while, so
this may be caused by a dependency, or a compiler change.

[2]: https://github.com/arq5x/bedtools2/commit/9d22ccb24f258553b0eff31e689b09563227331b

Hope this helps pinpointing what's up,
Étienne.


-- System Information:
Debian Release: trixie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.5.0-3-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

-- 
  .''`.  Étienne Mollier <emollier at debian.org>
 : :' :  gpg: 8f91 b227 c7d6 f2b1 948c  8236 793c f67e 8f0d 11da
 `. `'   sent from /dev/pts/7, please excuse my verbosity
   `-    on air: Condition Red - Let It All Come Out
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