https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: net-misc/dahdi-tools-3.1.0-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 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 795107 [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: <artificial>:(.text+0x536b): undefined reference to `get_ver' <artificial>:(.text.startup+0x10a1): undefined reference to `get_ver' sed: can't read conftest.c: No such file or directory 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=84ba723adca728dfcaa2cb0f19112e51cbb22518 commit 84ba723adca728dfcaa2cb0f19112e51cbb22518 Author: Jaco Kroon <jaco@uls.co.za> AuthorDate: 2023-05-11 15:37:09 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-05-12 03:53:42 +0000 net-misc/dahdi-tools: add 3.2.0 Closes: https://bugs.gentoo.org/861605 Closes: https://bugs.gentoo.org/873766 Signed-off-by: Jaco Kroon <jaco@uls.co.za> Closes: https://github.com/gentoo/gentoo/pull/30996 Signed-off-by: Sam James <sam@gentoo.org> net-misc/dahdi-tools/Manifest | 1 + net-misc/dahdi-tools/dahdi-tools-3.2.0.ebuild | 73 ++++++++++++++++++++++ .../dahdi-tools/files/dahdi-tools-3.2.0-lto.patch | 61 ++++++++++++++++++ net-misc/dahdi-tools/metadata.xml | 3 + 4 files changed, 138 insertions(+)