build script for emacs-${version}.pkg

BuildRule.emacs

#! /bin/sh
arch=`arch`
package_name='emacs'
version='24.4'
url="http://ftpmirror.gnu.org/${package_name}/${package_name}-${version}.tar.gz"
option='--without-x'
build=`mktemp -d ${PWD}/${package_name}-build.XXXXX`
mkdir ${build}/src && cd ${build}/src
wget ${url}
tar --gzip --extract --file ${package_name}-${version}.tar.gz
cd ${package_name}-${version}
./configure --prefix=${build} ${option}
make && make install
cd ${build}
tar --gzip --create --file                     \
    ../${package_name}-${version}-`arch`.pkg . \
    --exclude ${build}/src