#

# set -o noglob is assumed.

#

BUILD_ARGS_SPEC="

	ARCH:arg:-a:

	ARG_AS_NEEDED:--as-needed:

	ARG_CLEAN_BUILDS:arg:-C:

	ARG_DEBUG_MINIPIX:--debug-minipix:

	ARG_DIST:arg:-D:

	ARG_FETCH_FORCE:-F:

	ARG_PARALLEL:optarg:-P:auto

	ARG_RELAXED:-R:

	ARG_RESTART:arg:-r:

	ARG_VERBOSE:selfarg:-v:

	ARG_VERBOSE:selfarg:-vv:

	ARG_VERBOSE:selfarg:-vvv:

	ARG_XTRACE:-x:

	BUILD:arg:-b:";

build_args() {

	local _spec="${BUILD_ARGS_SPEC}" _spec_arg="" _found="";

	while [ ${#} -gt 0 ]; do

		if [ "${1#-}" = "${1}" ]; then

			break;

		fi;

		for _spec_arg in ${_spec}; do

			case "${_spec_arg}" in

			*:${1}:*)

				case "${_spec_arg#*:}" in

				arg:*)

					ex_rtl_set_var_unsafe "${_spec_arg%%:*}" "${2}"; shift; ;;

				optarg:*)

					if [ -n "${2}" ]\

					&& [ "x${2#-}" = "x${2}" ]; then

						ex_rtl_set_var_unsafe "${_spec_arg%%:*}" "${2}";

						shift;

					else

						ex_rtl_set_var_unsafe "${_spec_arg%%:*}"	\

							"${_spec_arg##*:}";

					fi; ;;

				selfarg:*)

					ex_rtl_set_var_unsafe "${_spec_arg%%:*}" "${1}"; ;;

				*)

					ex_rtl_set_var_unsafe "${_spec_arg%%:*}" 1; ;;

				esac; _found=1; break; ;;

			*)	_found=0; ;;

			esac;

		done;

		if [ "${_found:-0}" -eq 0 ]; then

			exec cat etc/build.usage;

		else

			shift;

		fi;

	done;

	if ex_rtl_lmatch "${ARG_DIST}" , tbz2	\

	|| ex_rtl_lmatch "${ARG_DIST}" , tgz	\

	|| ex_rtl_lmatch "${ARG_DIST}" , txz	\

	|| ex_rtl_lmatch "${ARG_DIST}" , zipdist; then

		if ! ex_rtl_lmatch "${ARG_DIST}" , minipix; then

			ARG_DIST="${ARG_DIST:+${ARG_DIST},}minipix";

		fi;

	fi;

	if [ -n "${ARG_RESTART}" ]; then

		if [ "${ARG_RESTART%:*}" != "${ARG_RESTART}" ]; then

			ARG_RESTART_AT="${ARG_RESTART#*:}"; ARG_RESTART="${ARG_RESTART%:*}";

		else

			ARG_RESTART_AT=ALL;

		fi;

		ARG_RESTART="$(echo "${ARG_RESTART}" | sed "s/,/ /g")";

	fi;

	if [ "${ARG_XTRACE:-0}" -eq 1 ]; then

		ARG_VERBOSE=2;

	else

		case "${ARG_VERBOSE}" in

		-v)	ARG_VERBOSE=1; ;;

		-vv)	ARG_VERBOSE=2; ;;

		-vvv)	ARG_VERBOSE=3; ;;

		esac;

	fi;

	while [ ${#} -gt 0 ]; do

	case "${1}" in

	*=*)	ex_rtl_set_var_unsafe "${1%%=*}" "${1#*=}"; ;;

	*)	BUILD_TARGETS="${BUILD_TARGETS:+${BUILD_TARGETS} }${1}"; ;;

	esac; shift; done;

};

# vim:filetype=sh