bpf-llvm-setup.sh

#!/bin/bash
set -e -x
numcpu=$(grep -c ^processor /proc/cpuinfo)

git clone https://github.com/llvm-mirror/llvm.git
git clone https://github.com/llvm-mirror/clang.git llvm/tools/clang
mkdir llvm/build/
cd llvm/build/

cmake .. \
  -DBUILD_SHARED_LIBS=OFF \
  -DCMAKE_BUILD_TYPE=Release \
  -DLLVM_ENABLE_TERMINFO=OFF \
  -DLLVM_TARGETS_TO_BUILD="ARM;CppBackend;X86;BPF" \
  -DCMAKE_INSTALL_PREFIX=/opt/local/llvm

make -j$numcpu
sudo make install
grep -q llvm $HOME/.bashrc || echo 'PATH=/opt/local/llvm/bin:$PATH' >> $HOME/.bashrc