Source: llvm-toolchain-13 Version: 1:13.0.1~+rc1-1~exp4 When building llvm-toolchain-12 and/or llvm-toolchain-13, the build fails with following error message:
LD_LIBRARY_PATH=/PRIVACY_INFO/llvm-toolchain-12_12.0.1/build-llvm/lib:$LD_LIBRARY_PATH \ VERBOSE=1 cmake --build build-llvm 16 --target stage2 Unknown argument 16 This is defined in debian-full-build target within rules: debian-full-build: echo "Using cmake: $(CMAKE_BIN)" # linker hack so stage2 can link against stage1 libs at runtime LD_LIBRARY_PATH=$(STAGE_1_LIB_DIR):$$LD_LIBRARY_PATH \ VERBOSE=1 $(PRE_PROCESS) $(CMAKE_BIN) --build $(TARGET_BUILD) $(NJOBS) --target stage2 whereas $(NJOBS) is defined as ifneq (,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS)))) NJOBS := -j $(subst parallel=,,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS)))) else NJOBS := $(shell nproc) endif I'm aware that I can set an envvar DEB_BUILD_OPTIONS='parallel=XX' before the build, but I assume the proper fix for it should be: else NJOBS := -j $(shell nproc) endif Regards, yumeyao