Dear maintainer,

The bart-cuda autopkgtest fails when run against glibc 2.41, which is
currently in experiemntal. It fails with [1]:

| 3772s touch tests/test-traj-custom
| 3772s set -e ; mkdir /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp/tests/tmp/$$/ ; cd /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp/tests/tmp/$$/			;\
| 3772s /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp//traj -R0. -r -y360 -D t0.ra 				;\
| 3772s /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp//phantom -k -t t0.ra k0.ra 				;\
| 3772s /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp//traj -R30. -r -y360 -D t30.ra			;\
| 3772s /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp//phantom -k -t t30.ra k30.ra 				;\
| 3772s /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp//estshift 4 k0.ra k30.ra | grep "30.00000" 		;\
| 3772s rm *.ra ; cd .. ; rmdir /tmp/autopkgtest-lxc.oedkyjwg/downtmp/autopkgtest_tmp/tests/tmp/$$/
| 3774s make: *** [tests/traj.mk:53: tests/test-traj-rot] Error 1

Investigation shows that this is due to improved accuracy of the atan2f
function in glibc 2.41. In details bart-cuda computes
atan2f(0x1.166202p-4, 0x1.e22c5ap-4) and it expects it to be 30.00000
when converted from radian to degrees, ie it expects the atan2f function
to return 0x1.0c1524p-1.

With glibc 2.41, the atan2f function has been improved [2] and now
returns instead 0x1.0c1522p-1 which is closer to the real value than
0x1.0c1524p-1.  This corresponds to 29.999998 when converted to degrees.
The patch below fixes the issue by accepting both values.

Regards
Aurelien
--- bart-cuda-0.8.00.orig/tests/traj.mk
+++ bart-cuda-0.8.00/tests/traj.mk
@@ -55,7 +55,7 @@ tests/test-traj-rot: traj phantom estshi
 	$(TOOLDIR)/phantom -k -t t0.ra k0.ra 				;\
 	$(TOOLDIR)/traj -R30. -r -y360 -D t30.ra			;\
 	$(TOOLDIR)/phantom -k -t t30.ra k30.ra 				;\
-	$(TOOLDIR)/estshift 4 k0.ra k30.ra | grep "30.00000" 		;\
+	$(TOOLDIR)/estshift 4 k0.ra k30.ra | grep "30.00000\|29.999998"	;\
 	rm *.ra ; cd .. ; rmdir $(TESTS_TMP)
 	touch $@

[1] https://ci.debian.net/data/autopkgtest/unstable/amd64/b/bart-cuda/57639405/log.gz
[2] https://sourceware.org/git/?p=glibc.git;a=commit;h=6f9bacf36b20b1a87fa4ec24c9d67c47985fbc8b

control: severity -1 serious

Hi,

glibc 2.41 is now in unstable, bumping the severity accordingly.

Regards
Aurelien

We believe that the bug you reported is fixed in the latest version of
bart-cuda, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1096018@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Andreas Tille <tille@debian.org> (supplier of updated bart-cuda package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sat, 17 Oct 2026 20:54:03 +0200
Source: bart-cuda
Architecture: source
Version: 1.0.01-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Med Packaging Team <debian-med-packaging@lists.alioth.debian.org>
Changed-By: Andreas Tille <tille@debian.org>
Closes: 1078156 1096018 1148694
Changes:
 bart-cuda (1.0.01-1) unstable; urgency=medium
 .
   * Team upload.
 .
   [ Martin Uecker ]
   * New upstream release. (Closes: #1096018, #1078156, #1148694)
 .
   [ Andreas Tille ]
   * Add debian/gbp.conf
   * Remove redundant Priority: optional from source stanza.
   * Trim trailing whitespace.
   * cme fix dpkg-control
   * Relax seq check_settings for RAGA / default configurations
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