Originally reported by Ionen. Very much related to bug 872416. Clang is installing these (and I think it's fair for it to do so): # equery f sys-devel/clang-toolchain-symlinks | grep i686 /usr/lib/llvm/15/bin/i686-pc-linux-gnu-c++ /usr/lib/llvm/15/bin/i686-pc-linux-gnu-cc /usr/lib/llvm/15/bin/i686-pc-linux-gnu-cpp /usr/lib/llvm/16/bin/i686-pc-linux-gnu-c++ /usr/lib/llvm/16/bin/i686-pc-linux-gnu-cc /usr/lib/llvm/16/bin/i686-pc-linux-gnu-cpp But gcc-config doesn't currently provide them. This means we have a situation like in bug 872416 but only for multilib builds. 1. Do we find a way for gcc-config to do it, probably by just installing wrappers w/ -m32 calls? 2. Or do we just get clang-toolchain-symlinks to stop installing them for now?
ftr this came up because multilib doesn't export CPP unlike CC (given this tend to cause other problems), and then autoconf picks clang's i686-pc-linux-gnu-cpp which may or may not lead to issues. If go with adding i686-*, note there's others missing that are present in *-symlinks, e.g. binutils-config's i686-*-ld, i686-*-strip. If wanted to be consistent even if not in symlinks, also i686-*-pkg-config and maybe more. It'll also conflict with matching i686 crossdev for some rare users. Assume(?) they want to keep x86 stuff in a different crossdev ROOT, albeit their doing this tend to cause issues like bug #472038. Supporting this is questionable but will likely need to inform/handle in some way if retake these. That aside, boring i686-w32-mingw32 shell wrappers that use -m32 is what I did for mingw64-toolchain so that it'd be interchangeable with crossdev without complexity (crossdev builds a i686* without -m64 support, so it's always -m32), ideally wish it'd be like clang that handles this without wrappers but not something I've looked at. tl;dr think may be better to drop llvm's i686 symlinks for now unless want the full venture
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=40be2519bcd439fc67a3a8c77656388d05a3c3c4 commit 40be2519bcd439fc67a3a8c77656388d05a3c3c4 Author: Michał Górny <mgorny@gentoo.org> AuthorDate: 2022-10-13 15:38:01 +0000 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: 2022-10-13 15:41:13 +0000 sys-devel/lld-toolchain-symlinks: Do not multilib by default Bug: https://bugs.gentoo.org/876901 Signed-off-by: Michał Górny <mgorny@gentoo.org> ...nks-14.ebuild => lld-toolchain-symlinks-14-r1.ebuild} | 16 +++++++++++----- ...nks-15.ebuild => lld-toolchain-symlinks-15-r1.ebuild} | 16 +++++++++++----- ...nks-16.ebuild => lld-toolchain-symlinks-16-r1.ebuild} | 16 +++++++++++----- sys-devel/lld-toolchain-symlinks/metadata.xml | 5 +++++ 4 files changed, 38 insertions(+), 15 deletions(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=831fe6faf3f10d6ec9081dabe6c912ed910f43f8 commit 831fe6faf3f10d6ec9081dabe6c912ed910f43f8 Author: Michał Górny <mgorny@gentoo.org> AuthorDate: 2022-10-13 15:34:42 +0000 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: 2022-10-13 15:41:12 +0000 sys-devel/clang-toolchain-symlinks: Do not multilib by default Bug: https://bugs.gentoo.org/876901 Signed-off-by: Michał Górny <mgorny@gentoo.org> ...-r1.ebuild => clang-toolchain-symlinks-14-r2.ebuild} | 17 ++++++++++++----- ...-r1.ebuild => clang-toolchain-symlinks-15-r2.ebuild} | 17 ++++++++++++----- ...-r1.ebuild => clang-toolchain-symlinks-16-r2.ebuild} | 17 ++++++++++++----- sys-devel/clang-toolchain-symlinks/metadata.xml | 5 +++++ 4 files changed, 41 insertions(+), 15 deletions(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5ec6220049870a8d8f097823a8e682b8fa1df823 commit 5ec6220049870a8d8f097823a8e682b8fa1df823 Author: Michał Górny <mgorny@gentoo.org> AuthorDate: 2022-10-13 15:31:16 +0000 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: 2022-10-13 15:41:11 +0000 sys-devel/llvm-toolchain-symlinks: Do not multilib by default Bug: https://bugs.gentoo.org/876901 Signed-off-by: Michał Górny <mgorny@gentoo.org> ...ks-14.ebuild => llvm-toolchain-symlinks-14-r1.ebuild} | 16 +++++++++++----- ...ks-15.ebuild => llvm-toolchain-symlinks-15-r1.ebuild} | 16 +++++++++++----- ...ks-16.ebuild => llvm-toolchain-symlinks-16-r1.ebuild} | 16 +++++++++++----- sys-devel/llvm-toolchain-symlinks/metadata.xml | 5 +++++ 4 files changed, 38 insertions(+), 15 deletions(-)
