#!/bin/bash
#
# Blueprint to build util-linux-2.12h.
#
# The util-linux package is a collection of many important utilities
# for GNU/Linux systems.  Examples include: fdisk, getty, mount, etc.
#
# Source code: ftp://ftp.win.tue.nl/pub/linux-local/utils/util-linux/
#
# This architect blueprint is copyright (c)2003-2004 David Horton
# dhorton@nospam.speakeasy.net
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to: 
#
#   Free Software Foundation, Inc.
#   59 Temple Place - Suite 330
#   Boston, MA 02111-1307, USA
#
#
# Define the package name, source directory, build directory and
# staging directory paths.  Prefixes to directories may be overridden
# by setting shell variables SRC, BUILD and STAGING.  For example,
# doing "export SRC=/root/foo" before calling this script will override
# the default /usr/src and set SRC_DIR to /root/foo/$PKG_NAME instead.
# 
PKG_NAME=$(basename $0)
SRC_DIR=${SRC:-/usr/src}/$PKG_NAME
BUILD_DIR=${BUILD:-/var/tmp/build}/$PKG_NAME
STAGING_DIR=${STAGING:-/var/tmp/staging}/$PKG_NAME
#
# Check that the source directory really exits and bail out if not.
if ! [ -d $SRC_DIR ]; then
  echo "$PKG_NAME: Cannot find source code directory $SRC_DIR."
  exit 1
fi
#
# Do not overwrite existing build directory.
if [ -d $BUILD_DIR ]; then
  echo "$PKG_NAME: Build directory $BUILD_DIR already exists."
  exit 2
else
  mkdir -p $BUILD_DIR
fi
#
# Do not overwrite existing staging directory.
if [ -d $STAGING_DIR ]; then
  echo "$PKG_NAME: Staging directory $STAGING_DIR already exists."
  exit 4
else
  mkdir -p $STAGING_DIR
fi
#
# This is not one of the packages that can be configured and built
# completely outside of the source tree.  So in order to leave the
# original source untouched, the contents of $SRC_DIR are first copied
# to $BUILD_DIR.  The copy in $BUILD_DIR is then modified to suit the
# configuration.
cp -dpR $SRC_DIR/* $BUILD_DIR
#
# The configure script for this package does not take any command-line
# options.  Instead, configuration options are set in the file MCONFIG.
# A sed script is used to change the settings in MCONFIG without
# requiring hand editing.
cd $BUILD_DIR
mv MCONFIG MCONFIG.orig
sed \
  -e 's/CPU=.*/CPU=i386/' \
  -e 's/HAVE_WRITE=no/HAVE_WRITE=yes/' \
  -e 's/HAVE_KILL=no/HAVE_KILL=yes/' \
  -e 's/HAVE_SLN=no/HAVE_SLN=yes/' \
  MCONFIG.orig > MCONFIG
#
# Once the MCONFIG options are set up, the ./configure script is run
export CC="gcc -mcpu=i386"
./configure
#
# Check return status and bail out if it's non-zero.
if [ $? -gt 0 ]; then
  echo "$PKG_NAME: Configuration failed!"
  exit 8
fi
# Build the package.
make
#
# Check return code and bail if it looks bad.
if [ $? -gt 0 ]; then
  echo "$PKG_NAME: Build failed!"
  exit 16
fi
#
# Install into staging area.
make DESTDIR=$STAGING_DIR install
#
# Check return code and bail if it looks bad.
if [ $? -gt 0 ]; then
  echo "$PKG_NAME: Installation to staging area failed!"
  exit 32
fi
#
# Make a symbolic link for getty that points to agetty
ln -s agetty $STAGING_DIR/sbin/getty
#
# Remove /bin/more because it requires ncurses.  The ncurses library
# is part of the /usr hierarchy.  Instead of using more, sysadmins can
# use /bin/more.sh or /usr/bin/less as a symlink.
rm $STAGING_DIR/bin/more
#
# Move cfdisk to /usr/sbin since it requires ncurses.
mv $STAGING_DIR/sbin/cfdisk $STAGING_DIR/usr/sbin
#
# end of util-linux blueprint