FAILED: cmTC_fceb4 : && /usr/lib/llvm/15/bin/i686-pc-linux-gnu-clang -pipe -march=native -fno-diagnostics-color -O2 CMakeFiles/cmTC_fceb4.dir/testCCompiler.c.o -o cmTC_fceb4 && : ld.lld: error: unable to find library -lunwind ld.lld: error: unable to find library -lunwind clang-15: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed. ------------------------------------------------------------------- This is an unstable amd64 chroot image at a tinderbox (==build bot) name: 17.1_desktop_gnome_systemd-j4-20220921-110005 ------------------------------------------------------------------- gcc-config -l: [1] x86_64-pc-linux-gnu-12.2.1 * clang/llvm (if any): clang version 15.0.1 Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm/15/bin /usr/lib/llvm/15 15.0.1 Python 3.10.7 Available Rust versions: [1] rust-bin-1.63.0 * The following VMs are available for generation-2: 1) Eclipse Temurin JDK 11.0.16.1_p1 [openjdk-bin-11] *) Eclipse Temurin JDK 17.0.4.1_p1 [openjdk-bin-17] 3) Eclipse Temurin JDK 8.345_p01 [openjdk-bin-8] Available Java Virtual Machines: [1] openjdk-bin-8 [2] openjdk-bin-11 [3] openjdk-bin-17 system-vm The Glorious Glasgow Haskell Compilation System, version 9.0.2 php cli (if any): GNU Make 4.3 HEAD of ::gentoo commit 2d5d30da1bd4281cedf9a8af2aeca54b3d054c20 Author: Repository mirror & CI <repomirrorci@gentoo.org> Date: Thu Sep 22 00:02:01 2022 +0000 2022-09-22 00:02:01 UTC emerge -qpvO sys-libs/libcxxabi [ebuild N ] sys-libs/libcxxabi-15.0.1 USE="clang -static-libs -test -verify-sig" ABI_X86="32 (64) (-x32)"
Created attachment 813526 [details] emerge-info.txt
Created attachment 813529 [details] CMakeError.log
Created attachment 813532 [details] CMakeOutput.log
Created attachment 813535 [details] emerge-history.txt
Created attachment 813538 [details] environment
Created attachment 813541 [details] etc.portage.tar.bz2
Created attachment 813544 [details] logs.tar.bz2
Created attachment 813547 [details] sys-libs:libcxxabi-15.0.1:20220922-002043.log
Created attachment 813550 [details] temp.tar.bz2
RUSTFLAGS="${RUSTFLAGS} -C link-arg=-lunwind" resolved the issue for me
(In reply to Jimmy.Jazz from comment #10) > RUSTFLAGS="${RUSTFLAGS} -C link-arg=-lunwind" resolved the issue for me oops ignore the noise, wrong patch (works for icecat)
Was sys-devel/clang built with USE="default-compiler-rt"?
(In reply to Michał Górny from comment #12) > Was sys-devel/clang built with USE="default-compiler-rt"? # emerge -qpvO sys-devel/clang [ebuild R ] sys-devel/clang-15.0.1 USE="default-compiler-rt default-libcxx default-lld (pie) static-analyzer xml -debug -doc -llvm-libunwind -test -verify-sig" ABI_X86="(64) -32 (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) (-ARC) (-CSKY) (-DirectX) (-LoongArch) (-M68k) (-SPIRV)" PYTHON_SINGLE_TARGET="python3_10 -python3_8 -python3_9 -python3_11"
Essentially the problem seems to be that you're trying to build libcxxabi with abi_x86_32 but you've built libunwind without. Unfortunately clang can't properly depend on the right set of ABI_X86 flags on its runtime dependencies.
