Build clang libcxx libcxxabi instrumented with msan

build.sh

wget https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-14.0.6.tar.gz
tar zxf llvmorg-14.0.6.tar.gz

cd llvm-project-llvmorg-14.0.6
rm -rf build
mkdir -p build
cd build

cmake \
  -G Ninja \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DCMAKE_C_COMPILER=clang \
  -DCMAKE_CXX_COMPILER=clang++ \
  -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi" \
  -DLLVM_EXTERNAL_LIT=/usr/bin/lit \
  -DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=NO \
  -DLLVM_USE_SANITIZER=MemoryWithOrigins \
  ../runtimes

ninja cxx cxxabi