#!/bin/sh

# a simple configure-make wrapper for use in conjunction with the 'lazy' build script.

# 'lazy' is deviant, occasionally useful, and permissively licensed; get_lazy() below,

# then look for configure.template in the root directory.

init_vars()

{

	lz_config_dir=`readlink -f $(dirname $0)`

	lz_pwd=`pwd`

	if [ x"$lz_config" = x ]; then

		. $lz_config_dir/config.lzy || exit 2

	else

		. "$lz_config" || exit 2

	fi

}

error_msg()

{

	echo $@ >&2

}

require_out_of_tree()

{

	if [ x"$lz_config_dir" = x"$lz_pwd" ]; then

		error_msg "$lz_package: out-of-tree builds are required."

		error_msg "please invoke configure again from a clean build directory."

		exit 2

	fi

	return 0

}

get_lazy()

{

	which lazy && lazy=`which lazy` && return 0

	if ! [ -d slazy ]; then

		git clone git://midipix.org/lazy slazy || exit 2

	fi

	lazy=$lz_pwd/slazy/lazy

}

lazy_approach()

{

	if [ x"$lz_prefix" = x ]; then

		error_msg "prefix is required."

		exit 2

	fi

	if [ x"$lz_arch" = x ];     then lz_arch=$lz_default_arch; fi

	if [ x"$lz_subarch" = x ];  then lz_subarch=$lz_default_subarch; fi

	if [ x"$lz_target" = x ];   then lz_target=$lz_default_target; fi

	if [ x"$lz_compiler" = x ]; then lz_compiler=$lz_default_compiler; fi

	if [ x"$lz_compiler" = x ]; then lz_compiler=gcc; fi

	$lazy -x config	$lz_debug	\

		-t $lz_target		\

		-a $lz_arch		\

		-c $lz_compiler		\

		-n $lz_package		\

		-p $lz_config_dir	\

		-f $lz_prefix		\

		|| exit 2

}

lazy_copy()

{

	cp "$lz_config_dir/Makefile.in" "$lz_pwd/Makefile"

}

for arg ; do

	case "$arg" in

		--help)	usage

			;;

		--prefix=*)

			lz_prefix=${arg#*=}

			;;

		--host=*)

			lz_target=${arg#*=}

			;;

		--target=*)

			lz_target=${arg#*=}

			;;

		--compiler=*)

			lz_compiler=${arg#*=}

			;;

		--config=*)

			lz_config=${arg#*=}

			;;

		--debug)

			lz_debug='-d'

			;;

		*)

			error_msg ${arg#}: "unsupported config argument."

			exit 2

			;;

	esac

done

init_vars

require_out_of_tree

get_lazy

lazy_approach

lazy_copy