https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sci-biology/qrna-2.0.3c-r3 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 795769 [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=c19c464def01a163fc04351c151a98d4048095e3 commit c19c464def01a163fc04351c151a98d4048095e3 Author: Eli Schwartz <eschwartz93@gmail.com> AuthorDate: 2024-03-21 00:25:02 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2024-03-21 05:57:37 +0000 sci-biology/qrna: add 2.0.4 This is the 2006 edition of the software. It has a bunch of useful fixes: - it fixes Modern C porting issues - it fixes LTO errors - it incorporates the glibc-2.10 patch just by upgrading! It's about time we upgrade, since it is 18 years later. Along the way we fix up the ebuild a bit: - bump to EAPI 8 - acquire an actual SRC_URI, not just the gentoo mirror - update the homepage along with the SRC_URI. The original homepage is dead, and the domain redirects to a new domain (whence comes the new distfile). It has some shortcomings too: - the distfile comes with free .svn directories, which have to be pruned. - the distfile comes without the 80mb demos To solve this, we use the old distfile (which I think only exists on Gentoo's mirror network) and gate it behind a USE=examples flag, in case anyone needs them. Closes: https://bugs.gentoo.org/862285 Closes: https://bugs.gentoo.org/884283 Signed-off-by: Eli Schwartz <eschwartz93@gmail.com> Signed-off-by: Sam James <sam@gentoo.org> sci-biology/qrna/Manifest | 1 + sci-biology/qrna/files/qrna-2.0.4-ldflags.patch | 381 ++++++++++++++++++++++++ sci-biology/qrna/qrna-2.0.4.ebuild | 61 ++++ 3 files changed, 443 insertions(+)
*** Bug 927387 has been marked as a duplicate of this bug. ***
