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# Copyright 1999-2013 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/autotools-multilib.eclass,v 1.7 2013/01/26 11:39:41 mgorny Exp $
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# @ECLASS: autotools-multilib.eclass
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# @MAINTAINER:
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# Michał Górny <mgorny@gentoo.org>
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# @BLURB: autotools-utils wrapper for multilib builds
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# @DESCRIPTION:
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# The autotools-multilib.eclass is an autotools-utils.eclass(5) wrapper
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# introducing support for building for more than one ABI (multilib).
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#
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# Inheriting this eclass sets IUSE=multilib and exports autotools-utils
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# phase function wrappers which build the package for each supported ABI
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# if the flag is enabled. Otherwise, it works like regular
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# autotools-utils.
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#
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# Note that the multilib support requires out-of-source builds to be
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# enabled. Thus, it is impossible to use AUTOTOOLS_IN_SOURCE_BUILD with
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# it.
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# EAPI=5 is required for meaningful MULTILIB_USEDEP.
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case ${EAPI:-0} in
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5) ;;
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*) die "EAPI=${EAPI} is not supported" ;;
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esac
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if [[ ${AUTOTOOLS_IN_SOURCE_BUILD} ]]; then
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die "${ECLASS}: multilib support requires out-of-source builds."
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fi
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inherit autotools-utils multilib multiprocessing
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EXPORT_FUNCTIONS src_configure src_compile src_test src_install
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IUSE=multilib
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# @ECLASS-VARIABLE: MULTILIB_USEDEP
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# @DESCRIPTION:
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# The USE-dependency to be used on dependencies (libraries) needing
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# to support multilib as well.
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#
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# Example use:
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# @CODE
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# RDEPEND="dev-libs/libfoo[${MULTILIB_USEDEP}]
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# net-libs/libbar[ssl,${MULTILIB_USEDEP}]"
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# @CODE
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MULTILIB_USEDEP='multilib(-)?'
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# @FUNCTION: autotools-multilib_foreach_abi
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# @USAGE: argv...
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# @DESCRIPTION:
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# If multilib support is enabled, sets the toolchain up for each
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# supported ABI along with the ABI variable and correct BUILD_DIR,
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# and runs the given commands with them.
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#
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# If multilib support is disabled, it just runs the commands. No setup
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# is done.
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autotools-multilib_foreach_abi() {
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local initial_dir=${BUILD_DIR:-${S}}
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if use multilib; then
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local ABI
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for ABI in $(get_all_abis); do
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multilib_toolchain_setup "${ABI}"
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BUILD_DIR=${initial_dir%%/}-${ABI} "${@}"
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done
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else
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"${@}"
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fi
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}
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# @FUNCTION: autotools-multilib_parallel_foreach_abi
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# @USAGE: argv...
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# @DESCRIPTION:
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# If multilib support is enabled, sets the toolchain up for each
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# supported ABI along with the ABI variable and correct BUILD_DIR,
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# and runs the given commands with them. The commands are run
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# in parallel with number of jobs being determined from MAKEOPTS.
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#
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# If multilib support is disabled, it just runs the commands. No setup
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# is done.
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#
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# Useful for running configure scripts.
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autotools-multilib_parallel_foreach_abi() {
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local initial_dir=${BUILD_DIR:-${S}}
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if use multilib; then
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multijob_init
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local ABI
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for ABI in $(get_all_abis); do
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(
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multijob_child_init
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multilib_toolchain_setup "${ABI}"
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BUILD_DIR=${initial_dir%%/}-${ABI}
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"${@}"
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) &
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multijob_post_fork
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done
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multijob_finish
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else
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"${@}"
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fi
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}
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autotools-multilib_src_configure() {
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autotools-multilib_parallel_foreach_abi autotools-utils_src_configure
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}
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autotools-multilib_src_compile() {
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autotools-multilib_foreach_abi autotools-utils_src_compile
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}
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autotools-multilib_src_test() {
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autotools-multilib_foreach_abi autotools-utils_src_test
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}
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autotools-multilib_src_install() {
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autotools-multilib_foreach_abi autotools-utils_src_install
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}
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