I thought we had more time for this. R fails to build too, and the mismatch between Fedora and R releases always makes this kind of change inconvenient for us packagers.
Anyway. What's the easiest way to modify the default flags to set -std=gnu17 for the time being? Iñaki On Wed, 15 Jan 2025 at 17:23, Jakub Jelinek <ja...@redhat.com> wrote: > On Wed, Jan 15, 2025 at 05:06:47PM +0100, Karolina Surma wrote: > > My Python 3.14 builds have started pulling gcc 15 in Fedora Rawhide (no > > side-tag). Is this intentional? > > If you mean that rawhide now uses gcc 15, then yes (not building 3.14 is of > course not on purpose, but it might be that it is not valid C23 or various > other reasons). > > > Unfortunately the builds also started to fail, so I'm trying to pin point > > the issue. The gcc version bump looks like a likely candidate. > > Has the version 15 already been released? > > No, it hasn't been released, but will be in April or May. > Fedora has been using gcc prereleases as system compilers usually since mid > to late January for many years (don't remember exactly, decade and half or > more). > > > I look at the documentation linked > > in the Fedora Change, but https://gcc.gnu.org/gcc-15/porting_to.html > says: > > "Note: GCC 15 has not been released yet, so this document is a > > work-in-progress." > > Yes, we plan to add details there really soon, David Malcolm has performed > a > mass prebuild of Fedora with ~ a month old version of gcc over Christmas > and its analysis is being finalized now. > > I guess for packagers the most important change is that gcc switched in C > to -std=gnu23 by default (compared to -std=gnu17 default in gcc 14 and some > earlier releases), which means that e.g. void foo (); changed behavior from > function with unspecified parameters returning void to function with no > parameters returning void (like in C++), bool, false, true are keywords, > there is [[]] attribute support etc. > > David's notes are in > > https://fedoraproject.org/wiki/F42-gcc-15-mass-prebuild#Automated_classification > I think, e.g. gentoo notes are in > https://wiki.gentoo.org/wiki/Modern_C_porting#Fixes_.28C23.29 > > Jakub > > -- > _______________________________________________ > devel mailing list -- devel@lists.fedoraproject.org > To unsubscribe send an email to devel-le...@lists.fedoraproject.org > 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/devel@lists.fedoraproject.org > Do not reply to spam, report it: > https://pagure.io/fedora-infrastructure/new_issue > -- Iñaki Úcar
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