Clang 5.0 toolchain install

gistfile1.txt

# https://stackoverflow.com/questions/39332406/install-libc-on-ubuntu
# Adapted for Clang 5.0

sudo apt-get update
sudo apt-get install -y clang-5.0 clang-5.0-doc \
    libclang-common-5.0-dev libclang-5.0-dev libclang1-5.0 libclang1-5.0-dbg \
    libllvm5.0 libllvm5.0-dbg lldb-5.0 llvm-5.0 llvm-5.0-dev llvm-5.0-runtime \
    clang-format-5.0 python-clang-5.0 liblldb-5.0-dev lld-5.0 libfuzzer-5.0-dev \
    subversion cmake

sudo update-alternatives --install /usr/bin/cc cc /usr/bin/clang-5.0 100
sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-5.0 100
sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-5.0 100
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-5.0 100
sudo update-alternatives --install /usr/bin/ld ld /usr/bin/ld.lld-5.0 10
sudo update-alternatives --install /usr/bin/ld ld /usr/bin/ld.gold 20
sudo update-alternatives --install /usr/bin/ld ld /usr/bin/ld.bfd 30
ld --version && echo 3 | sudo update-alternatives --config ld && ld --version


svn co http://llvm.org/svn/llvm-project/libcxx/branches/release_50/ libcxx
svn co http://llvm.org/svn/llvm-project/libcxxabi/branches/release_50/ libcxxabi
mkdir -p libcxx/build libcxxabi/build


cd libcxx/build
cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_CONFIG_PATH=/usr/bin/llvm-config-5.0\
      -DCMAKE_INSTALL_PREFIX=/usr ..

sudo make install


cd ../../libcxxabi/build
CPP_INCLUDE_PATHS=echo | c++ -Wp,-v -x c++ - -fsyntax-only 2>&1 |grep ' /usr'|tr '\n' ' '|tr -s ' ' |tr ' ' ';'
CPP_INCLUDE_PATHS="/usr/include/c++/v1/;$CPP_INCLUDE_PATHS"
cmake -G "Unix Makefiles" -DLIBCXX_CXX_ABI=libstdc++ \
      -DLIBCXX_LIBSUPCXX_INCLUDE_PATHS="$CPP_INCLUDE_PATHS" \
      -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr \
      -DLLVM_CONFIG_PATH=/usr/bin/llvm-config-5.0 \
      -DLIBCXXABI_LIBCXX_INCLUDES=../../libcxx/include  ..
sudo make install


cd ../../libcxx/build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr \
      -DLIBCXX_CXX_ABI=libcxxabi -DLLVM_CONFIG_PATH=/usr/bin/llvm-config-5.0\
      -DLIBCXX_CXX_ABI_INCLUDE_PATHS=../../libcxxabi/include ..
sudo make install