setup

#!/bin/bash

lua="lua-5.2.0"
luabin=$(pwd)/${lua}/bin


if [ $(uname) == "Darwin" ]; then
    arch="macosx"
fi

if [ $(uname) == "Linux" ]; then
    arch="linux"
fi

if [ ! -d ${lua} ]; then
    echo "Downloading and installing Lua..."
    wget http://www.lua.org/ftp/${lua}.tar.gz
    tar xvf ${lua}.tar.gz
    rm ${lua}.tar.gz
    cd ${lua}; make $arch; make install INSTALL_TOP=$(pwd); cd ..;
fi

PATH=${PATH/${luabin}:/""} # Remove lua/bin from path if it exists

export PATH=${luabin}:$PATH
export LUA_CPATH=$(pwd)/src/?.so
export LUA_HOME=$(pwd)/${lua}

echo "*** run with 'source' to export these environment variables for build: ***"
echo "PATH=${PATH}"
echo "LUA_CPATH=${LUA_CPATH}"
echo "LUA_HOME=${LUA_HOME}"