Building clang from source using ninja and ccmake

build_clang.sh

#!/bin/bash

# use the current date
curr_date=`date +%Y-%m-%d`
clang_home=~/github/llvm_${curr_date}

# exit on any error
set -e

mkdir ${clang_home}
cd ${clang_home}

git clone --depth=1 https://llvm.org/git/llvm.git
cd llvm/tools/
git clone --depth=1 https://llvm.org/git/clang.git
git clone --depth=1 https://llvm.org/git/lld.git
cd clang/tools/
git clone --depth=1 https://llvm.org/git/clang-tools-extra.git extra
cd ../../
cd ../projects/
git clone --depth=1 https://llvm.org/git/libcxx.git
git clone --depth=1 https://llvm.org/git/libcxxabi.git
git clone --depth=1 https://llvm.org/git/compiler-rt.git
cd ../../

mkdir build
cd build

# this launches the ccmake gui
ccmake -G Ninja ../llvm/

ninja
ninja install