https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: sci-visualization/labplot-2.9.0-r1 fails tests (LTO-SYSTEM). Discovered on: amd64 (internal ref: lto_tinderbox) NOTE: (LTO-SYSTEM) in the summary means that bug was found on a machine that runs lto but this bug MAY or MAY NOT BE related to lto. 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 826903 [details] build.log.xz build log and emerge --info (compressed because it exceeds attachment limit, use 'xzless' to read it)
Created attachment 826905 [details] 1-LastTest.log.xz 1-LastTest.log (compressed because it exceeds attachment limit, use 'xzless' to read it)
Error(s) that match a know pattern: 9 - ParserTest (Failed) 19 - ReadStatFilterTest (Failed) -- Could NOT find KF5Parts (missing: KF5Parts_DIR) -- Could NOT find KF5Parts: found neither KF5PartsConfig.cmake nor kf5parts-config.cmake -- Could NOT find Poppler (missing: Qt5) (found suitable version "22.10.0", minimum required is "0.62.0") -- Could NOT find Poppler_Qt5 (missing: Poppler_Qt5_LIBRARY Poppler_Qt5_INCLUDE_DIR) (found version "") fatal: not a git repository (or any parent up to mount point /var/tmp)
Note, current stable is 2.10.1 https://bugs.gentoo.org/910259 Is this issue still reproducible ?
(In reply to luzpaz from comment #4) > Note, current stable is 2.10.1 https://bugs.gentoo.org/910259 > Is this issue still reproducible ? yeah the test still fails
