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#!/usr/bin/env bash
# Checkout LLVM sources
git clone --depth=1 https://github.com/llvm/llvm-project.git llvm-project
# Setup libc++ options
if [ -z "$BUILD_32_BITS" ]; then
export BUILD_32_BITS=OFF && echo disabling 32 bit build
fi
# Build and install libc++ (Use unstable ABI for better sanitizer coverage)
cd ./llvm-project
cmake -DCMAKE_C_COMPILER=${C_COMPILER} \
-DCMAKE_CXX_COMPILER=${COMPILER} \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX=/usr \
-DLIBCXX_ABI_UNSTABLE=OFF \
-DLLVM_USE_SANITIZER=${LIBCXX_SANITIZER} \
-DLLVM_BUILD_32_BITS=${BUILD_32_BITS} \
-DLLVM_ENABLE_PROJECTS='libcxx;libcxxabi' \
-S llvm -B llvm-build -G "Unix Makefiles"
make -C llvm-build -j3 cxx cxxabi
sudo make -C llvm-build install-cxx install-cxxabi
cd ..
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