autogen.sh

#!/bin/bash
# $Id$
# 
# Copyright (c) 2008 STFC Rutherford Appleton Laboratory 
# Author: Lee-Shawn Chin 
# Date  : June 2008

LOGFILE="autogen.log"
AUTOMAKE_MINVER="1.8.0"
AUTOCONF_MINVER="2.59"

echo -e "$0 begins " `date` "\n" > $LOGFILE

function complainAndQuit() {
	echo "FAILED"
	echo "+ see $LOGFILE for details"
	exit 1
}

function checkMinVersion() {
	# Usage: compareVersion MIN_VERSION CURRENT_VERSION
	#        returns 0 if CURRENT_VERSION >= MIN_VERSION
	#        returns 1 otherwise
	#
	# *_VERSION should be in the following format: x.y.z
	#
	# We can't use expr as a decimal or string compare would be wrong
	# e.g. Version 1.8 < version 1.10.1
	#
	#
	
	minver=$1
	curver=$2
	
	for i in 1 2 3; do
		min=`echo $minver | cut -d'.' -f$i`
		cur=`echo $curver | cut -d'.' -f$i`
		
		# cast them to integers (" " becomes 0)
		let min="min + 0"
		let cur="cur + 0"
		
		if [ $cur -lt $min ]; then
			return 1
		elif [ $cur -gt $min ]; then
			return 0
		fi
	done
	
	# if we reach this point, they are both equal
	return 0
}

# check automake version
ver=`automake --version 2>/dev/null | sed -e '1s/[^0-9]*//' -e q`
checkMinVersion "$AUTOMAKE_MINVER" "$ver"
if test $? -ne 0; then
    echo "ERROR: automake (version >= $AUTOMAKE_MINVER) is required" >&2
    exit 1
fi 

# check autoconf version
ver=`autoconf --version 2>/dev/null | sed -e '1s/[^0-9]*//' -e q`
checkMinVersion "$AUTOCONF_MINVER" "$ver"
if test $? -ne 0; then
    echo "ERROR: autoconf (version >= $AUTOCONF_MINVER) is required" >&2
    exit 1
fi 

# check for autoheader
ver=`autoheader --version 2>/dev/null | sed -e '1s/[^0-9]*//' -e q`
if test x$ver = x; then 
    echo "ERROR: autoheader is required." >&2
    echo "       Plese install autoheader and try again." >&2
    exit 1
fi

# check for aclocal
ver=`aclocal --version 2>/dev/null | sed -e '1s/[^0-9]*//' -e q`
if test x$ver = x; then 
    echo "ERROR: aclocal is required." >&2
    echo "       Plese install aclocal and try again." >&2
    exit 1
fi

# check for libtoolize
ver=`libtoolize --version 2>/dev/null | sed -e '1s/[^0-9]*//' -e q`
if test "x$ver" == "x"; then 
    echo "ERROR: libtoolize is required." >&2
    echo "       Plese install libtoolize and try again." >&2
    exit 1
fi

# pre-create README file so automake doesn't complain
touch README

echo -n "Running libtoolize ... "
echo "(libtoolize)" >> $LOGFILE
libtoolize --copy --force >> $LOGFILE 2>> $LOGFILE
if test ! $? = 0; then complainAndQuit; fi
echo "DONE"

echo -n "Running aclocal    ... "
echo "(aclocal)" >> $LOGFILE
aclocal -I m4 >> $LOGFILE 2>> $LOGFILE
if test ! $? = 0; then complainAndQuit; fi
echo "DONE"

echo -n "Running autoheader ... "
echo "(autoheader)" >> $LOGFILE
autoheader >> $LOGFILE 2>> $LOGFILE
if test ! $? = 0; then complainAndQuit; fi
echo "DONE"

echo -n "Running automake   ... "
echo "(automake)" >> $LOGFILE
automake --add-missing >> $LOGFILE 2>> $LOGFILE
if test ! $? = 0; then complainAndQuit; fi
echo "DONE"

echo -n "Running autoconf   ... "
echo "(autoconf)" >> $LOGFILE
autoconf >> $LOGFILE 2>> $LOGFILE
if test ! $? = 0; then complainAndQuit; fi
echo "DONE"

echo -n "Overwriting 'COPYING' file ... "
echo "(overwritng COPYING)" >> $LOGFILE
(rm COPYING; touch COPYING) >> $LOGFILE 2>> $LOGFILE
if test ! $? = 0; then complainAndQuit; fi
echo "DONE"

echo -e "\n\n$0 ends " `date` "\n" >> $LOGFILE