https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sci-libs/givaro-4.1.1-r2 installs pkg-config files that do not respect libdir. 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 796492 [details] build.log build log and emerge --info
I can clearly see the issue being still present upstream. I'll open an issue there. That's an easy patch if annoying.
https://github.com/linbox-team/givaro/issues/200
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f6bc01c6dc39ae282df30c969c06e39b5751db32 commit f6bc01c6dc39ae282df30c969c06e39b5751db32 Author: Michael Orlitzky <mjo@gentoo.org> AuthorDate: 2022-09-02 11:06:36 +0000 Commit: Michael Orlitzky <mjo@gentoo.org> CommitDate: 2022-09-02 11:09:04 +0000 sci-libs/givaro: fix pkg-config libdir, update EAPI 7 -> 8 Apply François Bissey's upstream patch in a new revision. Closes: https://bugs.gentoo.org/862753 Signed-off-by: Michael Orlitzky <mjo@gentoo.org> .../givaro/files/givaro-4.1.1-fix-pc-libdir.patch | 21 ++++++++ sci-libs/givaro/givaro-4.1.1-r3.ebuild | 59 ++++++++++++++++++++++ 2 files changed, 80 insertions(+)
