Compiling the C compiler identification source file "CMakeCCompilerId.c" failed. Compiler: /usr/lib/llvm/15/bin/i686-pc-linux-gnu-clang Build flags: -pipe;-march=native;-fno-diagnostics-color;-O2 Id flags: The output was: 1 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) Checking whether the ASM compiler is GNU using "--version" did not match "(GNU assembler)|(GCC)|(Free Software Foundation)": clang version 15.0.1 Target: i686-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm/15/bin Detecting C compiler ABI info failed to compile with the following output: Change Dir: /var/tmp/portage/sys-libs/libcxxabi-15.0.1/work/runtimes_build-abi_x86_32.x86/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_fc84e && [1/2] Building C object CMakeFiles/cmTC_fc84e.dir/CMakeCCompilerABI.c.o clang version 15.0.1 Target: i686-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm/15/bin Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Selected multilib: 32;@m32 (in-process) "/usr/lib/llvm/15/bin/clang-15" -cc1 -triple i686-pc-linux-gnu -emit-obj --mrelax-relocations -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name CMakeCCompilerABI.c -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu znver3 -target-feature -avx512pf -target-feature -tsxldtrk -target-feature +cx16 -target-feature +sahf -target-feature -tbm -target-feature -avx512ifma -target-feature +sha -target-feature +crc32 -target-feature -fma4 -target-feature +vpclmulqdq -target-feature +prfchw -target-feature +bmi2 -target-feature -cldemote -target-feature +fsgsbase -target-feature -avx512bf16 -target-feature -amx-tile -target-feature -uintr -target-feature -gfni -target-feature +popcnt -target-feature -ptwrite -target-feature +aes -target-feature -avx512bitalg -target-feature -movdiri -target-feature -widekl -target-feature +xsaves -target-feature -avx512er -target-feature -avxvnni -target-feature -avx512fp16 -target-feature -avx512vnni -target-feature -amx-bf16 -target-feature -avx512vpopcntdq -target-feature -pconfig -target-feature +clwb -target-feature -avx512f -target-feature +xsavec -target-feature +clzero -target-feature +pku -target-feature +mmx -target-feature -lwp -target-feature +rdpid -target-feature -xop -target-feature +rdseed -target-feature -waitpkg -target-feature -kl -target-feature -movdir64b -target-feature +sse4a -target-feature -avx512bw -target-feature +clflushopt -target-feature +xsave -target-feature -avx512vbmi2 -target-feature +64bit -target-feature -avx512vl -target-feature -serialize -target-feature -hreset -target-feature +invpcid -target-feature -avx512cd -target-feature +avx -target-feature +vaes -target-feature -amx-int8 -target-feature +cx8 -target-feature +fma -target-feature -rtm -target-feature +bmi -target-feature -enqcmd -target-feature +rdrnd -target-feature +mwaitx -target-feature +sse4.1 -target-feature +sse4.2 -target-feature +avx2 -target-feature +fxsr -target-feature +wbnoinvd -target-feature +sse -target-feature +lzcnt -target-feature +pclmul -target-feature +rdpru -target-feature +f16c -target-feature +ssse3 -target-feature -sgx -target-feature -prefetchwt1 -target-feature +cmov -target-feature -avx512vbmi -target-feature +shstk -target-feature +movbe -target-feature -avx512vp2intersect -target-feature +xsaveopt -target-feature -avx512dq -target-feature +sse2 -target-feature +adx -target-feature +sse3 -mllvm -treat-scalable-fixed-error-as-warning -debugger-tuning=gdb -v -fcoverage-compilation-dir=/var/tmp/portage/sys-libs/libcxxabi-15.0.1/work/runtimes_build-abi_x86_32.x86/CMakeFiles/CMakeTmp -resource-dir /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1 -dependency-file CMakeFiles/cmTC_fc84e.dir/CMakeCCompilerABI.c.o.d -MT CMakeFiles/cmTC_fc84e.dir/CMakeCCompilerABI.c.o -sys-header-deps -internal-isystem /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../x86_64-pc-linux-gnu/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/var/tmp/portage/sys-libs/libcxxabi-15.0.1/work/runtimes_build-abi_x86_32.x86/CMakeFiles/CMakeTmp -ferror-limit 19 -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o CMakeFiles/cmTC_fc84e.dir/CMakeCCompilerABI.c.o -x c /usr/share/cmake/Modules/CMakeCCompilerABI.c clang -cc1 version 15.0.1 based upon LLVM 15.0.1 default target x86_64-pc-linux-gnu ignoring nonexistent directory "/usr/local/include" ignoring nonexistent directory "/usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../x86_64-pc-linux-gnu/include" ignoring nonexistent directory "/include" #include "..." search starts here: #include <...> search starts here: /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1/include /usr/include End of search list. [2/2] Linking C executable cmTC_fc84e FAILED: cmTC_fc84e : && /usr/lib/llvm/15/bin/i686-pc-linux-gnu-clang -pipe -march=native -fno-diagnostics-color -O2 -v CMakeFiles/cmTC_fc84e.dir/CMakeCCompilerABI.c.o -o cmTC_fc84e && : clang version 15.0.1 Target: i686-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm/15/bin Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Selected multilib: 32;@m32 "/usr/bin/ld.lld" -pie --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o cmTC_fc84e /usr/lib/Scrt1.o /usr/lib/crti.o /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1/lib/linux/clang_rt.crtbegin-i386.o -L/usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1/32 -L/usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../x86_64-pc-linux-gnu/lib -L/lib -L/usr/lib CMakeFiles/cmTC_fc84e.dir/CMakeCCompilerABI.c.o /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1/lib/linux/libclang_rt.builtins-i386.a --as-needed -lunwind --no-as-needed -lc /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1/lib/linux/libclang_rt.builtins-i386.a --as-needed -lunwind --no-as-needed /usr/lib/llvm/15/bin/../../../../lib/clang/15.0.1/lib/linux/clang_rt.crtend-i386.o /usr/lib/crtn.o 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. Determining if the C compiler works failed with the following output: Change Dir: /var/tmp/portage/sys-libs/libcxxabi-15.0.1/work/runtimes_build-abi_x86_32.x86/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_fceb4 && [1/2] Building C object CMakeFiles/cmTC_fceb4.dir/testCCompiler.c.o [2/2] Linking C executable cmTC_fceb4 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.