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# opkhelper
# lib/buildsystem/make
# Build system plugin for POSIX-conformant make.
#
# Copyright (C) 2012 Patrick "P. J." McDermott
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

[ -n "${_OH_BUILDSYSTEM_MAKE_SM}" ] && return 0
_OH_BUILDSYSTEM_MAKE_SM='true'

_oh_make_can_configure()
{
	return 1
}

_oh_make_can_build()
{
	[ -r "${_OH_BUILDSYSTEM_BUILD_DIR}/makefile" -o \
		-r "${_OH_BUILDSYSTEM_BUILD_DIR}/Makefile" ]
}

_oh_make_build()
{
	if [ -n "${_OH_BUILDSYSTEM_BUILD_TARGET}" ]; then
		_oh_make_update_first_defined_target "${_OH_BUILDSYSTEM_BUILD_TARGET}" \
			"${@}"
	else
		_oh_make_update_first_defined_target '' "${@}"
	fi
}

_oh_make_can_clean()
{
	_oh_make_can_build
}

_oh_make_clean()
{
	_oh_make_update_first_defined_target 'distclean realclean clean' "${@}"
}

_oh_make_can_test()
{
	_oh_make_can_build
}

_oh_make_test()
{
	_oh_make_update_first_defined_target 'test check' "${@}"
}

_oh_make_can_install()
{
	_oh_make_can_build
}

_oh_make_install()
{
	_oh_make_update_first_defined_target 'install' \
		"${@}" "DESTDIR=${_OH_BUILDSYSTEM_DESTDIR}"
}

_oh_make_update_first_defined_target()
{
	_oh_local _ohbsmufdt_targets _ohbsmufdt_target

	_ohbsmufdt_targets="${1}"
	shift

	mkdir -p "${_OH_BUILDSYSTEM_BUILD_DIR}"
	cd "${_OH_BUILDSYSTEM_BUILD_DIR}"

	if [ -z "${_ohbsmufdt_targets}" ]; then
		make "${@}"
	else
		for _ohbsmufdt_target in ${_ohbsmufdt_targets}; do
			# If the target is defined, ...
			if make -n "${_ohbsmufdt_target}" >/dev/null 2>&1; then
				# ... then update it.
				make "${@}" "${_ohbsmufdt_target}"
				break
			fi
		done
	fi

	cd "${_OH_BUILDSYSTEM_WORK_AREA}"

	_oh_return 0
	return ${?}
}