#! /bin/sh

# autoconf-2.59 or 2.61 is known to work

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

# automake-1.9.x or 1.10 is known to work

: ${ACLOCAL="aclocal${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" -a "$AUTOCONF_VER" != "2.61" ]
then
	echo "Warning: This program is tested with autoconf version 2.59 and 2.61."
	echo "You are using `${AUTOCONF} --version | head -n 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" -a "$AUTOMAKE_VER" != "1.10" ]
then
	echo "Warning: This program is tested with automake version 1.9 and 1.10."
	echo "You are using `${AUTOMAKE} --version | head -n 1`."
fi

export ACLOCAL AUTOHEADER AUTOCONF AUTOMAKE

# Bootstrap the build system.

set -x

rm -rf autom4te.cache

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