Hi, Some time ago, I installed from binary repository these binary packages and related deps : - sys-devel/llvm:17 - sys-devel/clang:17 Everything went fine. Today, sys-devel/llvm:18 and sys-devel/clang:18 are stabilized. I did the same, and again, everything went fine. Until I run the next emerge update : emerge wants to rebuild llvm and clang packages to turn on the xml useflag : > # emerge -avuDU @world > > These are the packages that would be merged, in order: > > Calculating dependencies... done! > Dependency resolution took 54.28 s (backtrack: 0/20). > > [ebuild U ] sys-devel/llvm-common-18.1.8::gentoo [17.0.6::gentoo] USE="-emacs -verify-sig" 0 KiB > [ebuild R ] sys-devel/llvm-18.1.8-r1:18/18.1::gentoo USE="binutils-plugin libffi ncurses xml* zstd -debug -debuginfod -doc -exegesis -libedit -test -verify-sig -z3" ABI_X86="32* (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" 272 KiB > [ebuild NS ] dev-util/spirv-llvm-translator-18.1.2:18::gentoo [17.0.0-r2:17::gentoo] USE="-test" 1 656 KiB > [ebuild R ] sys-devel/clang-18.1.8:18/18.1::gentoo USE="extra (pie) static-analyzer xml* -debug -doc (-ieee-long-double) -test -verify-sig" ABI_X86="32* (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_12 -python3_10 -python3_11 (-python3_13)" 0 KiB > xml useflag is coming from the desktop profile. Why llvm:17 and clang:17 binary packages are built with xml on and llvm:18 and clang:18 binary packages are not ? Thank you.
To be more precise, the llvm:17 and clang:17 packages I installed were : > # sha1sum /var/cache/binpkgs/sys-devel/llvm/llvm-17.0.6-5.gpkg.tar > 89bcfc3ca3d802d5e86eff4e36e83ed79b2b8633 /var/cache/binpkgs/sys-devel/llvm/llvm-17.0.6-5.gpkg.tar > > # sha1sum /var/cache/binpkgs/sys-devel/clang/clang-17.0.6-5.gpkg.tar > d2034ccc24993382966fd16ecef31a2ef0cad425 /var/cache/binpkgs/sys-devel/clang/clang-17.0.6-5.gpkg.tar > Those packages are built with useflags xml and abi_x86_32 on. When installing following llvm:18 and clang:18 packages : > # sha1sum /var/cache/binpkgs/sys-devel/llvm/llvm-18.1.8-r1-3.gpkg.tar > 37dad6f68f374945ac5da2b6f9f5d47741684f89 /var/cache/binpkgs/sys-devel/llvm/llvm-18.1.8-r1-3.gpkg.tar > > # sha1sum /var/cache/binpkgs/sys-devel/clang/clang-18.1.8-3.gpkg.tar > f2f2c820474fe6b8f9f516cc80a7f32a8264ce02 /var/cache/binpkgs/sys-devel/clang/clang-18.1.8-3.gpkg.tar > Useflags xml and abi_x86_32 are off. Why this difference ?
Created attachment 898322 [details] emerge -av1 --getbinpkgonly sys-devel/clang:18 I think I found something. I uninstalled clang and llvm packages just to test. Now I'm asking emerge to reinstall them from binary host. Attached file is the output. The problem : in my make.conf I have abi_x86_32 useflag in my USE. You can see that emerge wants to install the packages with 32bit ABI off : > ABI_X86="(64) -32 (-x32)" It seems to me that emerge is selecting the wrong binary package.
Created attachment 898323 [details] emerge -av1 --getbinpkg sys-devel/clang:18 With --getbinpkg instead of --getbinpkgonly it selects the packages with 32 ABI on.
Please reassign to portage team. For me this is an emerge bug : --getbinpkgonly does not respect abi_x86_32 useflag.
(In reply to Fab from comment #4) > Please reassign to portage team. For me this is an emerge bug : > --getbinpkgonly does not respect abi_x86_32 useflag. --getbinpkgonly doesn't respect _any_ USE flags. See bug 934962. What we _could_ do is adjust the scoring so that we prefer disabling/ignoring flags which are set on fewer packages.
Ok, I understand this behavior better. Why did I use the --getbinpkgonly in the first place ? Last update of media-libs/mesa with VIDEO_CARDS="intel" pulls-in dev-libs/libclc, then lvm and clang. In FEATURES I have *buildpkg*. I started my world update as usual when I realized that llvm and clang would take too long to build, so I stopped the world update process, I removed (emerge -Ca) manually the already built few dependencies related to llvm and clang, and I started a new emerge process to install only clang : > emerge -av1 --getbinpkgonly sys-devel/clang:18 Why only ? because emerge had already built binary packages for the dependencies that I removed above, but I would prefer to use binary packages from binhost for them, and that's exactly what the man page entry is saying : > --getbinpkgonly [ y | n ], -G > This option is identical to -g, as above, except binaries from the remote > server are preferred over local packages if they are not identical. I didn't imagine that emerge would not respect useflags configuration.
(In reply to Fab from comment #6) > I didn't imagine that emerge would not respect useflags configuration. It is not a sensible default since the introduction of gentoo binhosts which contain a mixture of packages built for different profiles, rather than a separate binhost per profile.
