On Thu, Mar 10, 2022 at 11:37:03AM -0800, Michel Alexandre Salim wrote: > Dear all, > > Just a heads-up that Folly and packages built against it are mostly* > switched to build using Clang for the time being, when compiled on > Fedora 36 and above. > > * the exception is watchman, which needs some work to get the latest > version to build because upstream started porting some functionality > to Rust, and wdt, which was archived externally, and now unarchived > so we need to sort through half a year's worth of internal changes > > Internally, Meta uses Clang, so Fedora's GCC-built packages have been > useful for surfacing GCC-specific issues, and we still plan to switch > back to GCC in a future release once issues compiling it with GCC 11 and > 12 are resolved. > > (GCC 11 issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104008 ; This is now fixed in GCC 12, I'll backport the fix to GCC 11 in a couple of days, so it'll be fixed in F36/F37 pretty soon. Thanks for opening the bug. > GCC 12 issue will be filed soon now that I've managed to rebuild the > entire stack) > > F37: https://bodhi.fedoraproject.org/updates/FEDORA-2022-737d681400 > F36: https://bodhi.fedoraproject.org/updates/FEDORA-2022-5852540ea0 > > The specs of the packages switched to Clang can be used to easily > rebuild with GCC, per the packaging guidelines, using `--without > toolchain_clang`, and I plan on doing this to sort out issues. > > As a bonus, Folly's test suite which we have had to disable when > building with GCC builds and runs fine with Clang on x86_64, and we're > using this opportunity to start fixing architecture-specific assumptions > causing test compile and runtime failures on non-Intel and non-64-bit architectures. > > We've also onboarded Folly and fb303 in PackIt: > - https://github.com/facebook/folly/blob/main/.packit.yaml > - https://github.com/facebook/fb303/blob/main/.packit.yaml > > so every tagged release will trigger CI and we get faster notice of any > regression, esp for non-x86_64 which we don't run in-house. > > If there's any package I miss that also needs to be rebuilt, please let > me know, and if the switch triggers some issue, let me know too. Marek _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
