#!/bin/sh
# Run this to generate all the initial makefiles, etc.
# This is based on various examples which can be found everywhere.
set -e

FLAGS=${FLAGS--Wall}
ACLOCAL=${ACLOCAL-aclocal}
AUTOHEADER=${AUTOHEADER-autoheader}
AUTOCONF=${AUTOCONF-autoconf}
AUTOMAKE=${AUTOMAKE-automake}
ACLOCAL_FLAGS="${ACLOCAL_FLAGS--I m4} ${FLAGS}"
AUTOHEADER_FLAGS="${AUTOHEADER_FLAGS} ${FLAGS}"
AUTOCONF_FLAGS="${AUTOCONF_FLAGS} ${FLAGS}"
AUTOMAKE_FLAGS="${AUTOMAKE_FLAGS---add-missing} ${FLAGS}"

die() {
	echo "$@"
	exit 1
}
do_cmd() {
	echo "Running '$@'"
	$@
}

test -f configure.ac || die "No configure.ac found."

# Generate aclocal.m4 for use by autoconf
do_cmd $ACLOCAL    $ACLOCAL_FLAGS
# Generate zncconfig.h.in for configure
do_cmd $AUTOHEADER $AUTOHEADER_FLAGS
# Generate configure
do_cmd $AUTOCONF   $AUTOCONF_FLAGS
# Copy config.sub, config.guess, install.sh, ...
# This will complain that we don't use automake, let's just ignore that
do_cmd $AUTOMAKE   $AUTOMAKE_FLAGS || true
test -f config.guess -a -f config.sub -a -f install-sh ||
	die "Automake didn't install config.guess, config.sub and install-sh!"

echo "(Yes, automake is supposed to fail, ignore that)"
echo

if grep PKG_CHECK_MODULES configure > /dev/null
then
	rm configure
	die "ERROR: pkg-config not found. Install pkg-config and run $0 again"
fi

echo "You may now run ./configure."