#

# set -o errexit -o noglob are assumed.

#

pre_setup_env() {

	local __;

	if [ -z "${BUILD_CPUS}" ]\

	&& [ -e /proc/cpuinfo ]; then

		BUILD_CPUS=$(awk '/^processor/{cpus++} END{print cpus}' /proc/cpuinfo);

	fi;

	for __ in ${HOME}/midipix_build.vars ../midipix_build.vars ./vars/build.vars; do

		[ -e ${__} ] && . ${__};

	done;

	if [ ${ARG_IPV4_ONLY:-0} -eq 1 ]; then

		WGET_ARGS="-4${WGET_ARGS:+ ${WGET_ARGS}}";

	elif [ ${ARG_IPV6_ONLY:-0} -eq 1 ]; then

		WGET_ARGS="-6${WGET_ARGS:+ ${WGET_ARGS}}";

	fi;

	for __ in $(export | sed -e 's/^export //' -e 's/=.*$//'); do

		if ! lmatch "${CLEAR_ENV_VARS_EXCEPT}" " " "${__}"; then

			unset "${__}";

		fi;

	done;

};

# vim:filetype=sh