LLVM と clang をビルドしてインストールする。

build-llvm.sh

#!/bin/sh

set -xe

# Install requirements
sudo apt-get install build-essential unzip zip man subversion python

# Checkout repositories
svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm
cd llvm/tools
svn co http://llvm.org/svn/llvm-project/cfe/trunk clang
cd clang/tools
svn co http://llvm.org/svn/llvm-project/clang-tools-extra/trunk extra
cd ../../../projects
svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt
cd ../..

# Configure and build
mkdir llvm-build
cd llvm-build
../llvm/configure --enable-optimized --disable-assertions --enable-targets=host
make -j4

# Install LLVM and clang
sudo make install