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FAILED: bin/ldc-profdata 
: && /usr/local/bin/clang++ -DDMDV2 -O3 -DNDEBUG -Xlinker --dependency-file=tools/CMakeFiles/ldc-profdata.dir/link.d tools/CMakeFiles/ldc-profdata.dir/ldc-profdata/llvm-profdata-19.1.cpp.o -o bin/ldc-profdata  -lLLVM-19  -L/usr/local/llvm19/lib && :
ld: error: undefined symbol: pthread_create
>>> referenced by llvm-profdata-19.1.cpp
>>>               tools/CMakeFiles/ldc-profdata.dir/ldc-profdata/llvm-profdata-19.1.cpp.o:(std::__1::future<void> std::__1::__make_async_assoc_state[abi:sn180100]<void, std::__1::__async_func<std::__1::function<void ()>>>(std::__1::__async_func<std::__1::function<void ()>>&&))
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
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[131/237] Building CXX object tools/ldc-profgen/ldc-profgen-19.1/CMakeFiles/ldc-profgen.dir/CSPreInliner.cpp.o
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ninja: build stopped: subcommand failed.