https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: dev-util/codeblocks-20.03-r4 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
Created attachment 791696 [details] build.log build log and emerge --info
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
`sqplus` was removed from codebase of Codeblocks [1] so I just will use disabling option `-fno-strict-aliasing` There are also related issues [2] in other places with dev-util/codeblocks-9999 (reported to upstream). [1] https://sourceforge.net/p/codeblocks/code/12416/ [2] https://sourceforge.net/p/codeblocks/tickets/1303/
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=22bdf13582b47bb942ec7ba51660947e84fbc1f4 commit 22bdf13582b47bb942ec7ba51660947e84fbc1f4 Author: Sergey Torokhov <torokhov-s-a@yandex.ru> AuthorDate: 2022-09-02 12:18:46 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-11-25 05:40:30 +0000 dev-util/codeblocks: pass '-fno-strict-aliasing' to fix compile error (lto) The related reported upstream issue for dev-util/codeblocks-9999: https://sourceforge.net/p/codeblocks/tickets/1303/ Closes: https://bugs.gentoo.org/858338 Signed-off-by: Sergey Torokhov <torokhov-s-a@yandex.ru> Closes: https://github.com/gentoo/gentoo/pull/25758 Signed-off-by: Sam James <sam@gentoo.org> dev-util/codeblocks/codeblocks-20.03-r4.ebuild | 5 ++++- dev-util/codeblocks/codeblocks-20.03-r5.ebuild | 5 ++++- dev-util/codeblocks/codeblocks-9999.ebuild | 5 ++++- 3 files changed, 12 insertions(+), 3 deletions(-)
