Here is what the 14 version outputs, which is correct ``` $ /usr/lib/llvm/14/bin/llvm-config --cmakedir /usr/lib/llvm/14/lib64/cmake/llvm ``` And that's what 15 outputs, which is incorrect ``` $ /usr/lib/llvm/15/bin/llvm-config --cmakedir /usr/lib/llvm/15/ ``` This is used by the dependent packages to find LLVMConfig.cmake, which is not found in case of the llvm:15 output Also, packages complain about non-monorepo layout - it is only using llvm-config as a fallback. I assume that's because it can't find the top-level (monorepo-level) cmake directory. Maybe also llvm directory as well, not sure. Considering that ebuilds already unpack llvmorg tarball, is there any harm in unpacking a bit more for each project? AFAIK, you don't need to actually build as monorepo (although I haven't tried it) According to https://github.com/llvm/llvm-project/blame/main/llvm/tools/llvm-config/llvm-config.cpp this is the change that came from https://github.com/llvm/llvm-project/commit/a5640968f2f7485b2aa4919f5fa68fd8f23e2d1f So, it expects `LLVM_INSTALL_PACKAGE_DIR` to be set to `/usr/lib/llvm/<version>/lib64/cmake/llvm`, I think NOTE: This originally was a bug with compiler-rt failing to configure, but I see that now it compiles just fine (still fails to find LLVMConfig.cmake, but then uses correct source path) Reproducible: Always Steps to Reproduce: 1. echo -e "\n="{sys-devel/{clang,llvm,clang-runtime},sys-libs/{compiler-rt{,-sanitizers},libomp}}"-15.0.0_rc2 **" "\n=sys-devel/llvmgold-15 **" >> /etc/portage/package.accept_keywords/temp-llvm-15 2. emerge -1 llvm:15 3. check that llvm-config --version is 15.0.0 4. check llvm-config --cmakedir Actual Results: llvm-config --cmakedir reports /usr/lib/llvm/15 Expected Results: llvm-config --cmakedir should report /usr/lib/llvm/15/lib64/cmake/llvm Portage 3.0.34 (python 3.10.6-final-0, default/linux/amd64/17.1/desktop/plasma, gcc-12.1.1, glibc-2.35-r8, 5.18.13-gentoo x86_64) ================================================================= System uname: Linux-5.18.13-gentoo-x86_64-AMD_Ryzen_9_5950X_16-Core_Processor-with-glibc2.35 KiB Mem: 32777304 total, 5779408 free KiB Swap: 33554428 total, 29179440 free Timestamp of repository gentoo: Sun, 14 Aug 2022 19:30:01 +0000 Head commit of repository gentoo: eeb4da5e8fa5e420eaa8756e1ab144d2799d1108 Timestamp of repository dotnet: Sun, 24 Jul 2022 22:47:27 +0000 Head commit of repository dotnet: 535bc122b4db34965d9c3f7fb57d6fa45595dd4f Timestamp of repository guru: Fri, 12 Aug 2022 22:16:52 +0000 Head commit of repository guru: 5529fe4874b2e1922ea72534869311f9157b3f90 Timestamp of repository steam-overlay: Sun, 07 Aug 2022 21:46:52 +0000 Head commit of repository steam-overlay: 084da06a9ce5d6bf957bc1f67c238113d5d247bb Timestamp of repository tastytea: Tue, 09 Aug 2022 18:31:56 +0000 Head commit of repository tastytea: 720a4f5200e96a27fe42ab224a732ca58fd49c33 Head commit of repository tlp: 4ba9fce0927a4bc87a4df54eb352a163a439810e Timestamp of repository vortex: Sun, 14 Aug 2022 15:46:48 +0000 Head commit of repository vortex: 8bdf3c583d0789cab8ed329adb7d7c438b83bdb7 sh bash 5.1_p16-r1 ld GNU ld (Gentoo 2.38 p4) 2.38 app-misc/pax-utils: 1.3.5::gentoo app-shells/bash: 5.1_p16-r1::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.36.0::gentoo dev-lang/python: 3.7.13::gentoo, 3.8.13_p6::gentoo, 3.9.13_p4::gentoo, 3.10.6_p2::gentoo, 3.11.0_rc1::gentoo dev-lang/rust: 1.62.1::gentoo dev-util/cmake: 3.24.0::gentoo dev-util/meson: 0.63.0::gentoo sys-apps/baselayout: 2.8-r2::gentoo sys-apps/openrc: 0.45.2::gentoo sys-apps/sandbox: 2.29::gentoo sys-devel/autoconf: 2.13-r2::gentoo, 2.71-r1::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.38-r2::gentoo sys-devel/binutils-config: 5.4.1::gentoo sys-devel/clang: 15.0.0_rc2::gentoo sys-devel/gcc: 12.1.1_p20220625::gentoo sys-devel/gcc-config: 2.5-r1::gentoo sys-devel/libtool: 2.4.7::gentoo sys-devel/lld: 14.0.6::gentoo sys-devel/llvm: 14.0.6-r2::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.19::gentoo (virtual/os-headers) sys-libs/glibc: 2.35-r8::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 sync-rsync-verify-jobs: 1 sync-rsync-verify-metamanifest: yes dotnet location: /var/db/repos/dotnet sync-type: git sync-uri: https://github.com/gentoo-mirror/dotnet.git masters: gentoo guru location: /var/db/repos/guru sync-type: git sync-uri: https://github.com/gentoo-mirror/guru.git masters: gentoo localrepo location: /var/db/repos/localrepo masters: gentoo steam-overlay location: /var/db/repos/steam-overlay sync-type: 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Created attachment 799627 [details] compiler-rt-14.0.6-r1 fail build.log Actually, I lied, compiler-rt still fails, it just needs a complete env update, and then it can't find the llvm cmake modules anymore So, this is actually a non-minor bug. There is a workaround - remove llvm:15, update env, install llvm:15 again (from binpkg) and then everything works, but links with llvm:14
Created attachment 799633 [details, diff] Add LLVM_INSTALL_PACKAGE_DIR variable As I suspected, setting LLVM_INSTALL_PACKAGE_DIR fixes the issue. It is still affected by #850646 after that, but that one also has a working fix/workaround
The default LLVM_INSTALL_PACKAGE_DIR is correct. Something else goes wrong along the way.
This is a regression from https://reviews.llvm.org/D130539. I'm working on a patch.
This has been merged to main and release/15.x branches now. If you wish, you can confirm by installing 15.0.0.9999. Otherwise, it'll be part of _rc3.
