https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: app-admin/prelude-manager-5.2.0-r1 fails to compile (lto). Discovered on: amd64 (internal ref: lto_tinderbox) NOTE: This machine uses lto with CFLAGS=-flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing
Created attachment 787490 [details] build.log build log and emerge --info
Created attachment 787493 [details] 1-config.log 1-config.log
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
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=064ad0eacceb8a748494c3f9c50de6e924aaae53 commit 064ad0eacceb8a748494c3f9c50de6e924aaae53 Author: Jakov Smolić <jsmolic@gentoo.org> AuthorDate: 2022-12-20 13:53:03 +0000 Commit: Jakov Smolić <jsmolic@gentoo.org> CommitDate: 2022-12-20 14:25:27 +0000 app-admin/prelude-manager: treeclean Closes: https://bugs.gentoo.org/854186 Closes: https://bugs.gentoo.org/778896 Closes: https://bugs.gentoo.org/728546 Signed-off-by: Jakov Smolić <jsmolic@gentoo.org> app-admin/prelude-manager/Manifest | 1 - .../files/prelude-manager-3.1.0-run.patch | 13 ---- .../prelude-manager/files/prelude-manager.initd | 25 -------- .../prelude-manager/files/prelude-manager.run | 4 -- .../prelude-manager/files/prelude-manager.service | 14 ----- app-admin/prelude-manager/metadata.xml | 16 ----- .../prelude-manager-5.2.0-r1.ebuild | 73 ---------------------- profiles/package.mask | 6 -- 8 files changed, 152 deletions(-)
