https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sci-libs/votca-tools-2021.2 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 795970 [details] build.log build log and emerge --info
Error(s) that match a know pattern in addition to what has been reported in the summary: FAILED: src/libtools/CMakeFiles/votca_tools.dir/correlate.cc.o FAILED: src/libtools/CMakeFiles/votca_tools.dir/crosscorrelate.cc.o FAILED: src/libtools/CMakeFiles/votca_tools.dir/datacollection.cc.o FAILED: src/libtools/CMakeFiles/votca_tools.dir/histogram.cc.o /var/tmp/portage/sci-libs/votca-tools-2021.2/work/tools-2021.2/include/votca/tools/tokenizer.h:110:8: error: ‘unique_ptr’ in namespace ‘std’ does not name a template type
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fc710ddaba2239a33051320409b1e700acdb385b commit fc710ddaba2239a33051320409b1e700acdb385b Author: Jakov Smolić <jsmolic@gentoo.org> AuthorDate: 2023-01-27 10:48:26 +0000 Commit: Jakov Smolić <jsmolic@gentoo.org> CommitDate: 2023-01-27 11:07:06 +0000 sci-libs/votca-tools: treeclean Closes: https://bugs.gentoo.org/841830 Closes: https://bugs.gentoo.org/862444 Signed-off-by: Jakov Smolić <jsmolic@gentoo.org> profiles/package.mask | 1 - sci-libs/votca-tools/Manifest | 2 -- sci-libs/votca-tools/metadata.xml | 15 --------- sci-libs/votca-tools/votca-tools-1.6.4.ebuild | 43 ------------------------ sci-libs/votca-tools/votca-tools-2021.2.ebuild | 45 -------------------------- 5 files changed, 106 deletions(-)