https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: mail-filter/mailfilter-0.8.7 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 792527 [details] build.log build log and emerge --info
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
Reported upstream as https://github.com/nondeterministic/mailfilter/issues/6
Fixed in 0.8.9: https://github.com/gentoo/gentoo/pull/27134
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3d098914d34522d5c62b3fd61aa7780ea70b1a3d commit 3d098914d34522d5c62b3fd61aa7780ea70b1a3d Author: Holger Hoffstätte <holger@applied-asynchrony.com> AuthorDate: 2022-09-04 11:44:17 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-09-10 11:12:55 +0000 mail-filter/mailfilter: bump to 0.8.9, clean up old, add proxy-maintainer Cleaning up 0.8.7 since it no longer works with GMail. We skipped 0.8.8 since it was buggy; 0.8.9 works fine again. Closes: https://bugs.gentoo.org/859514 Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com> Closes: https://github.com/gentoo/gentoo/pull/27134 Signed-off-by: Sam James <sam@gentoo.org> mail-filter/mailfilter/Manifest | 2 +- .../{mailfilter-0.8.7.ebuild => mailfilter-0.8.9.ebuild} | 10 +++++----- mail-filter/mailfilter/metadata.xml | 9 ++++++++- 3 files changed, 14 insertions(+), 7 deletions(-)