https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sci-astronomy/esomidas-17.02-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 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 824959 [details] build.log.xz build log and emerge --info (compressed because it exceeds attachment limit, use 'xzless' to read it)
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2f312c8ac535978d117c6111c29fddb772a5219a commit 2f312c8ac535978d117c6111c29fddb772a5219a Author: Arthur Zamarin <arthurzam@gentoo.org> AuthorDate: 2024-08-04 17:34:11 +0000 Commit: Arthur Zamarin <arthurzam@gentoo.org> CommitDate: 2024-08-04 17:34:11 +0000 sci-astronomy/esomidas: treeclean Closes: https://bugs.gentoo.org/935545 (pkgremoved) Closes: https://bugs.gentoo.org/682338 (pkgremoved) Closes: https://bugs.gentoo.org/727978 (pkgremoved) Closes: https://bugs.gentoo.org/731752 (pkgremoved) Closes: https://bugs.gentoo.org/771855 (pkgremoved) Closes: https://bugs.gentoo.org/877841 (pkgremoved) Closes: https://bugs.gentoo.org/880611 (pkgremoved) Closes: https://bugs.gentoo.org/898102 (pkgremoved) Closes: https://bugs.gentoo.org/919217 (pkgremoved) Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org> profiles/base/package.use.force | 1 - profiles/package.mask | 5 - sci-astronomy/esomidas/Manifest | 1 - sci-astronomy/esomidas/esomidas-17.02-r1.ebuild | 151 --------------------- .../files/esomidas-17.02-gentoo-setup.patch | 12 -- .../files/esomidas-17.02-output_to_stdout.patch | 42 ------ .../esomidas/files/esomidas-17.02-rpc.patch | 33 ----- sci-astronomy/esomidas/metadata.xml | 19 --- 8 files changed, 264 deletions(-)
