https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: net-dns/totd-1.5.1 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 794657 [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: /usr/lib/gcc/x86_64-pc-linux-gnu/12.1.1/../../../../x86_64-pc-linux-gnu/bin/ld: <artificial>:(.text+0x58ae): undefined reference to `strlcat' /usr/lib/gcc/x86_64-pc-linux-gnu/12.1.1/../../../../x86_64-pc-linux-gnu/bin/ld: <artificial>:(.text+0x92f6): undefined reference to `strlcpy' /usr/lib/gcc/x86_64-pc-linux-gnu/12.1.1/../../../../x86_64-pc-linux-gnu/bin/ld: <artificial>:(.text+0x986b): undefined reference to `strlcpy' <artificial>:(.text+0x577d): undefined reference to `strlcat' <artificial>:(.text+0x6215): undefined reference to `strlcpy' <artificial>:(.text+0x7801): undefined reference to `strlcpy' <artificial>:(.text+0x9146): undefined reference to `strlcpy' <artificial>:(.text+0xb248): undefined reference to `strlcat' collect2: error: ld returned 1 exit status
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=63b794b3a21829c48815eb69dd2358470a8e1814 commit 63b794b3a21829c48815eb69dd2358470a8e1814 Author: Jakov Smolić <jsmolic@gentoo.org> AuthorDate: 2024-02-10 12:06:51 +0000 Commit: Jakov Smolić <jsmolic@gentoo.org> CommitDate: 2024-02-10 12:06:51 +0000 net-dns/totd: treeclean Closes: https://bugs.gentoo.org/861296 Closes: https://bugs.gentoo.org/900058 Bug: https://bugs.gentoo.org/856466 Bug: https://bugs.gentoo.org/865253 Signed-off-by: Jakov Smolić <jsmolic@gentoo.org> net-dns/totd/Manifest | 1 - net-dns/totd/files/totd | 38 ------------------------- net-dns/totd/files/totd-1.5.1-fix-CC.patch | 11 -------- net-dns/totd/files/totd-1.5.1-no_werror.patch | 11 -------- net-dns/totd/metadata.xml | 10 ------- net-dns/totd/totd-1.5.1.ebuild | 40 --------------------------- profiles/package.mask | 5 ---- 7 files changed, 116 deletions(-)
