#!/bin/sh
set -eu

version_llvm="$1"

dir_download="$PWD/download"
mkdir -p build; cd build
dir_install="$PWD/install-llvm-$version_llvm"

# Prepare source
tar xf "$dir_download/llvm-$version_llvm.src.tar.xz"
cd "llvm-$version_llvm.src"

mkdir -p build; cd build

# Configure source
cmake .. \
    -DCMAKE_INSTALL_PREFIX="$dir_install" \
    -DCMAKE_BUILD_TYPE=Release \
    -DLLVM_TARGETS_TO_BUILD="X86" \
    -DLLVM_INSTALL_UTILS=ON

# Build and install
make
make install