mkdir blfs-llvm && cd blfs-llvm
cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ \
-DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_SKIP_INSTALL_RPATH=ON \
-DLLVM_ENABLE_FFI=ON -DCMAKE_BUILD_TYPE=Release \
-DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON \
-DLLVM_ENABLE_RTTI=ON -DLLVM_ENABLE_PROJECTS="all" \
-DLLVM_BINUTILS_INCDIR=/usr/include -DLLVM_INCLUDE_BENCHMARKS=OFF \
-DCLANG_DEFAULT_PIE_ON_LINUX=ON -DCLANG_CONFIG_FILE_SYSTEM_DIR=/etc/clang \
-DLLVM_PARALLEL_{COMPILE,LINK,TABLEGEN}_JOBS=12 \
-DLLVM_TARGETS_TO_BUILD="host;AArch64;AMDGPU;ARM;AVR;BPF;Hexagon;Lanai;LoongArch;Mips;MSP430;NVPTX;PowerPC;RISCV;Sparc;SPIRV;SystemZ;VE;WebAssembly;X86;XCore" \
-W no-dev -G Ninja \
../llvm