https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: net-analyzer/thcrut-1.2.5-r2 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 794609 [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: ./configure: line 7265: ./pcre-3.9/pcre-config: No such file or directory ./configure: line 7265: libnet-config: command not found ./configure: line 7266: ./pcre-3.9/pcre-config: No such file or directory ./configure: line 7266: libnet-config: command not found network_raw.h:8:35: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing[https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wstrict-aliasing]]
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=02ab4e02e3d0380754f7cc7441d7737adb25680e commit 02ab4e02e3d0380754f7cc7441d7737adb25680e Author: Jakov Smolić <jsmolic@gentoo.org> AuthorDate: 2022-12-20 13:55:53 +0000 Commit: Jakov Smolić <jsmolic@gentoo.org> CommitDate: 2022-12-20 14:25:29 +0000 net-analyzer/thcrut: treeclean Closes: https://bugs.gentoo.org/731154 Closes: https://bugs.gentoo.org/861263 Signed-off-by: Jakov Smolić <jsmolic@gentoo.org> net-analyzer/thcrut/Manifest | 1 - .../thcrut/files/thcrut-1.2.5-configure.patch | 42 -------------- net-analyzer/thcrut/files/thcrut-1.2.5-flags.patch | 11 ---- .../thcrut/files/thcrut-1.2.5-fno-common.patch | 20 ------- .../thcrut/files/thcrut-1.2.5-libnet.patch | 65 ---------------------- net-analyzer/thcrut/metadata.xml | 11 ---- net-analyzer/thcrut/thcrut-1.2.5-r2.ebuild | 35 ------------ profiles/package.mask | 1 - 8 files changed, 186 deletions(-)
