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155 lines
4.5 KiB
155 lines
4.5 KiB
# 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 1.14 2013/04/01 11:05:27 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 the USE flags and exports autotools-utils
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# phase function wrappers which build the package for each supported ABI
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# when the relevant flag is enabled. Other than that, it works like
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# regular 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-build
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EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
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# @ECLASS-VARIABLE: MULTILIB_WRAPPED_HEADERS
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# @DESCRIPTION:
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# A list of headers to wrap for multilib support. The listed headers
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# will be moved to a non-standard location and replace with a file
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# including them conditionally to current ABI.
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#
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# This variable has to be a bash array. Paths shall be relative to
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# installation root (${ED}), and name regular files. Recursive wrapping
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# is not supported.
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#
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# Please note that header wrapping is *discouraged*. It is preferred to
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# install all headers in a subdirectory of libdir and use pkg-config to
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# locate the headers. Some C preprocessors will not work with wrapped
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# headers.
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#
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# Example:
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# @CODE
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# MULTILIB_WRAPPED_HEADERS=(
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# /usr/include/foobar/config.h
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# )
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# @CODE
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autotools-multilib_src_prepare() {
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autotools-utils_src_prepare "${@}"
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}
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autotools-multilib_src_configure() {
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multilib_parallel_foreach_abi autotools-utils_src_configure "${@}"
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}
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autotools-multilib_src_compile() {
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multilib_foreach_abi autotools-utils_src_compile "${@}"
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}
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autotools-multilib_src_test() {
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multilib_foreach_abi autotools-utils_src_test "${@}"
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}
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_autotools-multilib_wrap_headers() {
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debug-print-function ${FUNCNAME} "$@"
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local f
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for f in "${MULTILIB_WRAPPED_HEADERS[@]}"; do
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# drop leading slash if it's there
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f=${f#/}
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if [[ ${f} != usr/include/* ]]; then
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die "Wrapping headers outside of /usr/include is not supported at the moment."
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fi
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# and then usr/include
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f=${f#usr/include}
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local dir=${f%/*}
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# $CHOST shall be set by multilib_toolchain_setup
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dodir "/tmp/multilib-include/${CHOST}${dir}"
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mv "${ED}/usr/include${f}" "${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
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if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then
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dodir "/tmp/multilib-include${dir}"
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# a generic template
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cat > "${ED}/tmp/multilib-include${f}" <<_EOF_ || die
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/* This file is auto-generated by autotools-multilib.eclass
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* as a multilib-friendly wrapper. For the original content,
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* please see the files that are #included below.
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*/
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#if defined(__x86_64__) /* amd64 */
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# if defined(__ILP32__) /* x32 ABI */
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# error "abi_x86_x32 not supported by the package."
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# else /* 64-bit ABI */
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# error "abi_x86_64 not supported by the package."
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# endif
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#elif defined(__i386__) /* plain x86 */
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# error "abi_x86_32 not supported by the package."
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#else
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# error "No ABI matched, please report a bug to bugs.gentoo.org"
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#endif
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_EOF_
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fi
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# XXX: get abi_* directly
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local abi_flag
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case "${ABI}" in
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amd64)
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abi_flag=abi_x86_64;;
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x86)
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abi_flag=abi_x86_32;;
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x32)
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abi_flag=abi_x86_x32;;
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*)
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die "Header wrapping for ${ABI} not supported yet";;
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esac
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# Note: match a space afterwards to avoid collision potential.
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sed -e "/${abi_flag} /s&error.*&include <${CHOST}/${f}>&" \
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-i "${ED}/tmp/multilib-include${f}" || die
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done
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}
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autotools-multilib_src_install() {
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autotools-multilib_secure_install() {
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autotools-utils_src_install "${@}"
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_autotools-multilib_wrap_headers
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# Make sure all headers are the same for each ABI.
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multilib_check_headers
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}
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multilib_foreach_abi autotools-multilib_secure_install "${@}"
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# merge the wrapped headers
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if [[ -d "${ED}"/tmp/multilib-include ]]; then
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multibuild_merge_root \
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"${ED}"/tmp/multilib-include "${ED}"/usr/include
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# it can fail if something else uses /tmp
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rmdir "${ED}"/tmp &>/dev/null
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fi
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}
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