#

# set -o errexit -o noglob are assumed.

#

pkg_setup_env() {

	local	_pkg_name_uc _pkg_name_parent_uc				\

		_vars_fname _vname _build_uc __ _log_env_vars;

	_pkg_name_uc="$(echo ${PKG_NAME} | tr a-z A-Z)";

	for _vars_fname in vars/${PKG_NAME}.vars; do

		[ -e "${_vars_fname}" ] && . "${_vars_fname}";

	done;

	_build_uc="$(echo ${BUILD} | tr a-z A-Z)";

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

		_pkg_name_parent_uc="$(echo ${PKG_NAME_PARENT} | tr a-z A-Z)";

		for _vname in PREFIX ${PKG_BUILD_VARS}; do

			for __ in "DEFAULT_${_vname}"				\

				  "${BUILD_TARGET}_${_vname}"			\

				  "PKG_${_pkg_name_parent_uc}_${_vname}"	\

				  "PKG_${_pkg_name_parent_uc}_${_vname}_${_build_uc}"; do

				if [ -n "$(get_var_unsafe "${__}")" ]; then

					set_var_unsafe "PKG_${_vname}" "$(get_var_unsafe ${__})";

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

						_log_env_vars="${_log_env_vars:+${_log_env_vars} }${__}";

					fi;

				fi;

			done;

		done;

	fi;

	for _vname in PREFIX ${PKG_BUILD_VARS}; do

		for __ in "DEFAULT_${_vname}"					\

			  "${BUILD_TARGET}_${_vname}"				\

			  "PKG_${_pkg_name_uc}_${_vname}"			\

			  "PKG_${_pkg_name_uc}_${_vname}_${_build_uc}"; do

			if [ -n "$(get_var_unsafe "${__}")" ]; then

				set_var_unsafe "PKG_${_vname}" "$(get_var_unsafe ${__})";

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

					_log_env_vars="${_log_env_vars:+${_log_env_vars} }${__}";

				fi;

			fi;

		done;

	done;

	if [ -z "${PKG_URL}" -a -z "${PKG_URLS_GIT}" -a -z "${PKG_VERSION}" ]; then

		log_msg failexit "Error: package \`${PKG_NAME}' missing in build.vars.";

	else

		[ -n "${PKG_ENV_VARS_EXTRA}" ] && set_env_vars_with_sep : "${PKG_ENV_VARS_EXTRA}";

		[ -z "${PKG_FNAME}" ] && PKG_FNAME="${PKG_URL##*/}";

		[ -z "${PKG_TARGET}" ] && PKG_TARGET="${TARGET}";

		[ -z "${MIDIPIX_BUILD_PWD}" ] && MIDIPIX_BUILD_PWD="$(pwd)";

		if [ -z "${PKG_SUBDIR}" ]; then

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

				PKG_SUBDIR="${PKG_URLS_GIT%%=*}";

			else

				PKG_SUBDIR="${PKG_FNAME%%.t*}";

			fi;

		fi;

		if [ -z "${PKG_BUILD_DIR}" ]; then

			set_build_dir "${PKG_SUBDIR}" "${PKG_BUILD_TYPE:-native}";

		fi;

		if [ "${PKG_BUILD_TYPE}" = "host" ]; then

			export AR="ar";

			export CC="gcc";

			export CXX="g++";

			export RANLIB="ranlib";

		else

			export AR="${PKG_TARGET}-ar";

			export CC="${PKG_TARGET}-gcc";

			export CXX="${PKG_TARGET}-g++";

			export RANLIB="${PKG_TARGET}-ranlib";

		fi;

		if [ "${PKG_SLIBTOOL}" != "default" ]; then

			export LIBTOOL="${PKG_SLIBTOOL:-slibtool}";

			export MAKE="make LIBTOOL=${PKG_SLIBTOOL:-slibtool}";

		fi;

	fi;

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

		_log_env_vars="$(echo "${_log_env_vars}" | tr " " "\n" | sort | tr "\n" " ")";

 		log_env_vars "build" ${_log_env_vars};

	fi;

};

# vim:filetype=sh