https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sys-cluster/wulfware-2.6.0 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 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 797842 [details] build.log build log and emerge --info
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e5ccd891730dde6303513a1a528637554b77271f commit e5ccd891730dde6303513a1a528637554b77271f Author: David Seifert <soap@gentoo.org> AuthorDate: 2023-03-18 16:43:00 +0000 Commit: David Seifert <soap@gentoo.org> CommitDate: 2023-03-18 16:43:00 +0000 sys-cluster/wulfware: treeclean Closes: https://bugs.gentoo.org/725818 Closes: https://bugs.gentoo.org/831111 Closes: https://bugs.gentoo.org/837611 Closes: https://bugs.gentoo.org/863740 Closes: https://bugs.gentoo.org/870772 Closes: https://bugs.gentoo.org/880947 Closes: https://bugs.gentoo.org/888958 Signed-off-by: David Seifert <soap@gentoo.org> profiles/package.mask | 6 - sys-cluster/wulfware/Manifest | 1 - .../files/wulfware-2.6.0-opts_and_strip.patch | 137 --------------------- .../wulfware/files/wulfware-2.6.0-tinfo.patch | 22 ---- sys-cluster/wulfware/metadata.xml | 5 - sys-cluster/wulfware/wulfware-2.6.0.ebuild | 65 ---------- 6 files changed, 236 deletions(-)
