https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: app-editors/helix-22.05 fails to compile (lto). Discovered on: amd64 (internal ref: guru_tinderbox) NOTE: This machine uses lto with CFLAGS=-flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing Here is a bit of explanation: -Werror=lto-type-mismatch: User to find possible runtime issues in packages. It likely means the package is unsafe to build & use with LTO. For projects using the same identifier but with different types across different files, they must be fixed to be consistent across the codebase. -Werror=odr: Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO. C++ code must comply with the One Definition Rule (ODR) - see https://en.cppreference.com/w/cpp/language/definition#One_Definition_Rule. -Werror=strict-aliasing: Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO. Workarounds: - If upstream is friendly and still active, file a bug upstream. For emulators, codecs, games, or multimedia packages, it may be worth just applying a workaround instead, as upstreams sometimes aren't receptive to these bugs (VALID FOR ALL). - Use the new 'filter-lto' from flag-o-matic.eclass as it's likely to be unsafe with LTO (VALID FOR lto-type-mismatch - odr). - Fix it yourself if interested, of course (VALID FOR ALL). - Append-flags -fno-strict-aliasing (VALID FOR strict-aliasing). - Use memcpy() but a union is sometimes suitable too (VALID FOR strict-aliasing). - -fstrict-aliasing is implied by -O2, so this must be addressed in some form (VALID FOR strict-aliasing). See also: https://marc.info/?l=gentoo-dev&m=165639574126280&w=2
Created attachment 794885 [details] build.log build log and emerge --info
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/proj/guru.git/commit/?id=ef332c32ede95f702cb22ebe806c60b44aad18bf commit ef332c32ede95f702cb22ebe806c60b44aad18bf Author: Florian Schmaus <flow@gentoo.org> AuthorDate: 2023-03-16 08:37:41 +0000 Commit: Florian Schmaus <flow@gentoo.org> CommitDate: 2023-03-16 08:37:41 +0000 app-editors/helix: treeclean, now in ::gentoo Closes: https://bugs.gentoo.org/819096 Closes: https://bugs.gentoo.org/819099 Closes: https://bugs.gentoo.org/831441 Closes: https://bugs.gentoo.org/861443 Closes: https://bugs.gentoo.org/887227 Closes: https://bugs.gentoo.org/901007 Signed-off-by: Florian Schmaus <flow@gentoo.org> app-editors/helix/Manifest | 544 --------------------------------- app-editors/helix/helix-22.05.ebuild | 294 ------------------ app-editors/helix/helix-22.08.1.ebuild | 326 -------------------- app-editors/helix/helix-22.12.ebuild | 431 -------------------------- app-editors/helix/metadata.xml | 21 -- 5 files changed, 1616 deletions(-)
