Public bug reported:
During the test-rebuild-20260320 on Ubuntu Resolute, foot fails to build
from source on all architectures with the following error:
../osc.c:516:26: error: initialization discards 'const' qualifier from
pointer target type [-Werror=discarded-qualifiers]
516 | char *operator = strchr(key_value, '=');
This is caused by glibc 2.43 implementing ISO C23 changes where
strchr(), strrchr(), memchr(), etc. now return const-qualified pointers
when passed const-qualified arguments. Ubuntu's default
-Werror=discarded-qualifiers flag turns this warning into a hard error.
The same issue affects notify.c and tokenize.c in the same source tree.
Upstream fix
------------
Yaakov Selkowitz (Red Hat) authored a patch that casts the return value
to (char *) in the three affected files. Linux From Scratch already
ships this as foot-1.25.0-const_strchr-1.patch.
Patch:
https://www.linuxfromscratch.org/slfs/view/13.0/download/foot/foot-1.25.0-const_strchr-1.patch
Upstream commit: 15ebc433baabd799252609e28bf79afd892b33a4
The patch touches:
- notify.c (memchr)
- osc.c (strchr)
- tokenize.c (strchr)
Suggested fix
-------------
Apply the above patch as debian/patches/const-strchr.patch, or sync
with Debian if they have already applied it.
Build log
---------
https://launchpad.net/ubuntu/+archive/test-
rebuild-20260320-resolute/+build/32410191/+files/buildlog_ubuntu-
resolute-amd64.foot_1.25.0-1_BUILDING.txt.gz
Related bugs
------------
Ubuntu master bug for glibc 2.43 / ISO C23 FTBFS:
https://bugs.launchpad.net/bugs/2142901
** Affects: foot (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2152544
Title:
FTBFS: foot 1.25.0-1 on resolute due to glibc 2.43 ISO C23 const
qualifiers
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/foot/+bug/2152544/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
