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# Copyright 2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: meson.eclass
# @MAINTAINER:
# William Hubbs <williamh@gentoo.org>
# Mike Gilbert <floppym@gentoo.org>
# @BLURB: common ebuild functions for meson-based packages
# @DESCRIPTION:
# This eclass contains the default phase functions for packages which
# use the meson build system.
#
# @EXAMPLE:
# Typical ebuild using meson.eclass:
#
# @CODE
# EAPI=6
#
# inherit meson
#
# ...
#
# src_configure() {
# local emesonargs=(
# -Dqt4=$(usex qt4 true false)
# -Dthreads=$(usex threads true false)
# -Dtiff=$(usex tiff true false)
# )
# meson_src_configure
# }
#
# ...
#
# @CODE
case ${EAPI:-0} in
6) ;;
*) die "EAPI=${EAPI} is not supported" ;;
esac
if [[ ${__MESON_AUTO_DEPEND+set} == "set" ]] ; then
# See if we were included already, but someone changed the value
# of MESON_AUTO_DEPEND on us. We could reload the entire
# eclass at that point, but that adds overhead, and it's trivial
# to re-order inherit in eclasses/ebuilds instead. #409611
if [[ ${__MESON_AUTO_DEPEND} != ${MESON_AUTO_DEPEND} ]] ; then
die "MESON_AUTO_DEPEND changed value between inherits; please inherit meson.eclass first! ${__MESON_AUTO_DEPEND} -> ${MESON_AUTO_DEPEND}"
fi
fi
if [[ -z ${_MESON_ECLASS} ]]; then
inherit ninja-utils python-utils-r1 toolchain-funcs
fi
EXPORT_FUNCTIONS src_configure src_compile src_test src_install
if [[ -z ${_MESON_ECLASS} ]]; then
_MESON_ECLASS=1
MESON_DEPEND=">=dev-util/meson-0.40.0
>=dev-util/ninja-1.7.2"
# @ECLASS-VARIABLE: MESON_AUTO_DEPEND
# @DESCRIPTION:
# Set to 'no' to disable automatically adding to DEPEND. This lets
# ebuilds form conditional depends by using ${MESON_DEPEND} in
# their own DEPEND string.
: ${MESON_AUTO_DEPEND:=yes}
if [[ ${MESON_AUTO_DEPEND} != "no" ]] ; then
DEPEND=${MESON_DEPEND}
fi
__MESON_AUTO_DEPEND=${MESON_AUTO_DEPEND} # See top of eclass
# @ECLASS-VARIABLE: BUILD_DIR
# @DEFAULT_UNSET
# @DESCRIPTION:
# Build directory, location where all generated files should be placed.
# If this isn't set, it defaults to ${WORKDIR}/${P}-build.
# @ECLASS-VARIABLE: EMESON_SOURCE
# @DEFAULT_UNSET
# @DESCRIPTION:
# The location of the source files for the project; this is the source
# directory to pass to meson.
# If this isn't set, it defaults to ${S}
# @VARIABLE: emesonargs
# @DEFAULT_UNSET
# @DESCRIPTION:
# Optional meson arguments as Bash array; this should be defined before
# calling meson_src_configure.
# @FUNCTION: _meson_create_cross_file
# @INTERNAL
# @DESCRIPTION:
# Creates a cross file. meson uses this to define settings for
# cross-compilers. This function is called from meson_src_configure.
_meson_create_cross_file() {
# Reference: http://mesonbuild.com/Cross-compilation.html
# system roughly corresponds to uname -s (lowercase)
local system=unknown
case ${CHOST} in
*-aix*) system=aix ;;
*-cygwin*) system=cygwin ;;
*-darwin*) system=darwin ;;
*-freebsd*) system=freebsd ;;
*-linux*) system=linux ;;
*-solaris*) system=sunos ;;
esac
local cpu_family=$(tc-arch)
case ${cpu_family} in
amd64) cpu_family=x86_64 ;;
arm64) cpu_family=aarch64 ;;
esac
# This may require adjustment based on CFLAGS
local cpu=${CHOST%%-*}
cat > "${T}/meson.${CHOST}" <<-EOF
[binaries]
ar = '${AR}'
c = '${CC}'
cpp = '${CXX}'
strip = '${STRIP}'
[host_machine]
system = '${system}'
cpu_family = '${cpu_family}'
cpu = '${cpu}'
endian = '$(tc-endian)'
EOF
}
# @FUNCTION: meson_src_configure
# @DESCRIPTION:
# This is the meson_src_configure function.
meson_src_configure() {
debug-print-function ${FUNCNAME} "$@"
# Common args
local mesonargs=(
--buildtype plain
--libdir "$(get_libdir)"
--localstatedir "${EPREFIX}/var/lib"
--prefix "${EPREFIX}/usr"
--sysconfdir "${EPREFIX}/etc"
--wrap-mode nodownload
)
# Both meson(1) and _meson_create_cross_file need these
local -x AR=$(tc-getAR)
local -x CC=$(tc-getCC)
local -x CXX=$(tc-getCXX)
local -x STRIP=$(tc-getSTRIP)
if tc-is-cross-compiler; then
_meson_create_cross_file || die "unable to write meson cross file"
mesonargs+=(
--cross-file "${T}/meson.${CHOST}"
)
# In cross mode, meson uses these as the native/build programs
AR=$(tc-getBUILD_AR)
CC=$(tc-getBUILD_CC)
CXX=$(tc-getBUILD_CXX)
STRIP=$(tc-getBUILD_STRIP)
fi
# https://bugs.gentoo.org/625396
python_export_utf8_locale
# Append additional arguments from ebuild
mesonargs+=("${emesonargs[@]}")
BUILD_DIR="${BUILD_DIR:-${WORKDIR}/${P}-build}"
set -- meson "${mesonargs[@]}" "$@" \
"${EMESON_SOURCE:-${S}}" "${BUILD_DIR}"
echo "$@"
"$@" || die
}
# @FUNCTION: meson_src_compile
# @DESCRIPTION:
# This is the meson_src_compile function.
meson_src_compile() {
debug-print-function ${FUNCNAME} "$@"
eninja -C "${BUILD_DIR}"
}
# @FUNCTION: meson_src_test
# @DESCRIPTION:
# This is the meson_src_test function.
meson_src_test() {
debug-print-function ${FUNCNAME} "$@"
eninja -C "${BUILD_DIR}" test
}
# @FUNCTION: meson_src_install
# @DESCRIPTION:
# This is the meson_src_install function.
meson_src_install() {
debug-print-function ${FUNCNAME} "$@"
DESTDIR="${D}" eninja -C "${BUILD_DIR}" install
einstalldocs
}
fi
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