https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sci-chemistry/tinker-8.2.1 fails tests (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 825101 [details] build.log build log and emerge --info
Error(s) that match a know pattern: rm: cannot remove 'ice.arc*': No such file or directory rm: cannot remove 'ice.dyn*': No such file or directory
70 -7759.5831 -10201.9725 2442.3894 271.05 5245.83 71 -7762.6744 -10202.7024 2440.0280 270.78 38889.11 VLIST -- Pairwise Neighbor List cannot be used with Replicas TINKER is Unable to Continue; Terminating the Current Calculation rm: cannot remove 'ice.arc*': No such file or directory rm: cannot remove 'ice.dyn*': No such file or directory * ERROR: sci-chemistry/tinker-8.2.1::gentoo failed (test phase): * (no error message)
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=08a8d3cde15e8323329cd3394572322f95c25653 commit 08a8d3cde15e8323329cd3394572322f95c25653 Author: Eli Schwartz <eschwartz@gentoo.org> AuthorDate: 2024-08-05 22:04:37 +0000 Commit: Eli Schwartz <eschwartz@gentoo.org> CommitDate: 2024-08-06 00:18:31 +0000 sci-chemistry/tinker: mark as LTO-unsafe At least, the tests fail if you use LTO. So it is apparently unsafe, though unsafe here means the results you get are wrong! Closes: https://bugs.gentoo.org/878059 Signed-off-by: Eli Schwartz <eschwartz@gentoo.org> sci-chemistry/tinker/tinker-8.2.1-r1.ebuild | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
