#! /bin/sh

# autoconf-2.59 is required

: ${AUTOHEADER="autoheader${AC_VER}"}
: ${AUTOCONF="autoconf${AC_VER}"}

# automake-1.9.x is required

: ${ACLOCAL="aclocal${AM_VER}"}
: ${AUTOMAKE="automake${AM_VER}"}

# Verify autoconf version

AUTOCONF_VER=`(${AUTOCONF} --version 2>/dev/null | head -n 1 | \
              cut -d ' ' -f 4) 2>/dev/null`
if [ "$AUTOCONF_VER" != "2.59" ]
then
	echo "You need to use autoconf version 2.59."
	echo "You are using `${AUTOCONF} --version | head -n 1`."
	exit 1
fi

# Verify automake version

AUTOMAKE_VER=`(${AUTOMAKE} --version | head -n 1 | \
              cut -d ' ' -f 4 | cut -d '.' -f -2) 2>/dev/null`
if [ "$AUTOMAKE_VER" != "1.9" ]
then
	echo "You need to use automake version 1.9."
	echo "You are using `${AUTOMAKE} --version | head -n 1`."
	exit 1
fi

export ACLOCAL AUTOHEADER AUTOCONF AUTOMAKE

# Bootstrap the build system.

set -x

rm -rf autom4te.cache

${ACLOCAL}
${AUTOHEADER}
${AUTOCONF}
${AUTOMAKE} -a -c