llvm/OpenCL setup

setup.sh

wget -q -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
sudo add-apt-repository -y "deb http://llvm.org/apt/trusty/ llvm-toolchain-trusty-3.9 main"
sudo apt-get update
sudo apt-get install clang-3.9
 
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-3.9 10
sudo update-alternatives --install /usr/bin/llvm-config llvm-config /usr/bin/llvm-config-3.9 10

#install POCL deps http://portablecl.org/docs/html/install.html
# sudo apt-get install libhwloc-dev
# but POCL doesn't suppor discrete GPUs
# https://github.com/pocl/pocl/issues/291