On Wed, Jan 07, 2026 at 08:37:53AM -0500, Siddhesh Poyarekar wrote: > On 2025-12-22 21:12, Siddhesh Poyarekar wrote: > > FYI, we have gcc 16 built in a side tag for testing, in preparation for > > a rebase in F44 by the Toolchain Update checkpoint[1]. I'm running > > scratch build tests[2][3] for various packages (some of you must have > > seen bugs coming your way already) in preparation for the rebase, but if > > any of you want to get ahead of the line and verify your own packages, > > you may do so by doing a scratch build against f44-build-side-124978. > > > > Please only do *scratch* builds against the side tag since we'd like to > > avoid changes to that tag until the end of the year since most of the > > gcc team is out. > > > > If you find issues and file bugs, please block bz#2424310[4] so that we > > can track them. > > I'm compiling a list of common issues found by gcc during the mass prebuild > and their resolutions here: > > https://fedoraproject.org/wiki/Fedora_44_GCC_16_mass_prebuild > > As before, the full log of results is here: > > https://github.com/siddhesh/mass-prebuild-logs/blob/main/gcc16-prebuild-report.out > > The wiki is still work in progress as I walk through the failure list.
FWIW, you've got linux-sgx listed as ignored supposedly due to it failing in gcc 15 already but I think that must have been a transient failure. GCC 16 did introduce a FTBFS problems with multiple errors like: trts_veh.cpp:200:90: error: ‘regparm’ attribute ignored [-Werror=attributes] triggered by a newly introduced warning https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;a=commit;h=ccead81bbc39668376eb5cf47066acb446cc43f3 It is not fair to blame GCC 16 here though. Per that commit message the 'regparm' attribute was always a no-op on x86_64 and shouldn't have been used, and SGX also should not have hardcoded use of -Werror. I worked around it with -Wno-attributes since removing use of the 'regparam' attr is more work. I'm thinking this is pretty unlikely to be a common error uncovered by GCC 16 though. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| -- _______________________________________________ devel mailing list -- [email protected] To unsubscribe send an email to [email protected] Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/[email protected] Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
