#!/bin/bash

# naming convention and rules for generation from http://cygwin.com/setup.html
PACKAGE=make
VERSION=3.82
# release number
RELEASE=1
PACKAGE_BIN_FILE=${PACKAGE}-${VERSION}-${RELEASE}.tar.bz2
PACKAGE_SRC_FILE=${PACKAGE}-${VERSION}-${RELEASE}-src.tar.bz2

# constructed stuff
PACKAGE_BIN_DIR=usr
PACKAGE_SRC_DIR=${PACKAGE}-${VERSION}-${RELEASE}

# stuff for building
VENDOR_DIR=make-3.82
VENDOR_FILE=${VENDOR_DIR}.tar.gz
BUILD_PREFIX=/usr

# whack anything generated
rm -f -r ${PACKAGE_BIN_FILE} \
         ${PACKAGE_BIN_DIR} \
         ${PACKAGE_SRC_FILE} \
         ${PACKAGE_SRC_DIR} \
         ${VENDOR_DIR} \
         || exit 1

if [ "$1" = "clean" ]
then
   exit 0
fi

# unpack tarball
tar zxf ${VENDOR_FILE} || exit 1

# archive source for package
cp -r ${VENDOR_DIR} ${PACKAGE_SRC_DIR} || exit 1

# construct PACKAGE_SRC_FILE from archive
(tar cf - --owner=0 --group=0 ${PACKAGE_SRC_DIR} | 
    bzip2 > ${PACKAGE_SRC_FILE}) || exit 1

if [ "$1" = "nobuild" ]
then
   exit 0
fi

pushd ${PACKAGE_SRC_DIR} || exit 1

   # run ./configure
   ./configure --prefix=${BUILD_PREFIX} || exit 1

   # note that make needs an absolute path for installation
   make prefix="$(pwd)/../${PACKAGE_BIN_DIR}" install || exit 1
   
popd
   
(tar cf - --owner=0 --group=0 ${PACKAGE_BIN_DIR} | \
    bzip2 > ${PACKAGE_BIN_FILE}) || exit 1