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|
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: autotools.eclass
# @MAINTAINER:
# base-system@gentoo.org
# @SUPPORTED_EAPIS: 0 1 2 3 4 5 6 7
# @BLURB: Regenerates auto* build scripts
# @DESCRIPTION:
# This eclass is for safely handling autotooled software packages that need to
# regenerate their build scripts. All functions will abort in case of errors.
# Note: We require GNU m4, as does autoconf. So feel free to use any features
# from the GNU version of m4 without worrying about other variants (i.e. BSD).
if [[ ${__AUTOTOOLS_AUTO_DEPEND+set} == "set" ]] ; then
# See if we were included already, but someone changed the value
# of AUTOTOOLS_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 [[ ${__AUTOTOOLS_AUTO_DEPEND} != ${AUTOTOOLS_AUTO_DEPEND} ]] ; then
die "AUTOTOOLS_AUTO_DEPEND changed value between inherits; please inherit autotools.eclass first! ${__AUTOTOOLS_AUTO_DEPEND} -> ${AUTOTOOLS_AUTO_DEPEND}"
fi
fi
if [[ -z ${_AUTOTOOLS_ECLASS} ]]; then
_AUTOTOOLS_ECLASS=1
case ${EAPI:-0} in
0|1|2|3|4|5|6|7) ;;
*) die "${ECLASS}: EAPI ${EAPI} not supported" ;;
esac
inherit libtool
# @ECLASS-VARIABLE: WANT_AUTOCONF
# @DESCRIPTION:
# The major version of autoconf your package needs
: ${WANT_AUTOCONF:=latest}
# @ECLASS-VARIABLE: WANT_AUTOMAKE
# @DESCRIPTION:
# The major version of automake your package needs
: ${WANT_AUTOMAKE:=latest}
# @ECLASS-VARIABLE: WANT_LIBTOOL
# @DESCRIPTION:
# Do you want libtool? Valid values here are "latest" and "none".
: ${WANT_LIBTOOL:=latest}
# @ECLASS-VARIABLE: _LATEST_AUTOMAKE
# @INTERNAL
# @DESCRIPTION:
# CONSTANT!
# The latest major unstable and stable version/slot of automake available
# on each arch.
# List latest unstable version first to boost testing adoption rate because
# most package manager dependency resolver will pick the first suitable
# version.
# If a newer slot is stable on any arch, and is NOT reflected in this list,
# then circular dependencies may arise during emerge @system bootstraps.
#
# See bug 312315 and 465732 for further information and context.
#
# Do NOT change this variable in your ebuilds!
# If you want to force a newer minor version, you can specify the correct
# WANT value by using a colon: <PV>:<WANT_AUTOMAKE>
_LATEST_AUTOMAKE=( 1.16.1:1.16 1.15.1:1.15 )
_automake_atom="sys-devel/automake"
_autoconf_atom="sys-devel/autoconf"
if [[ -n ${WANT_AUTOMAKE} ]]; then
case ${WANT_AUTOMAKE} in
# Even if the package doesn't use automake, we still need to depend
# on it because we run aclocal to process m4 macros. This matches
# the autoreconf tool, so this requirement is correct. #401605
none) ;;
latest)
# Use SLOT deps if we can. For EAPI=0, we get pretty close.
if [[ ${EAPI:-0} != 0 ]] ; then
_automake_atom="|| ( `printf '>=sys-devel/automake-%s:%s ' ${_LATEST_AUTOMAKE[@]/:/ }` )"
else
_automake_atom="|| ( `printf '>=sys-devel/automake-%s ' ${_LATEST_AUTOMAKE[@]/%:*}` )"
fi
;;
*) _automake_atom="=sys-devel/automake-${WANT_AUTOMAKE}*" ;;
esac
export WANT_AUTOMAKE
fi
if [[ -n ${WANT_AUTOCONF} ]] ; then
case ${WANT_AUTOCONF} in
none) _autoconf_atom="" ;; # some packages don't require autoconf at all
2.1) _autoconf_atom="~sys-devel/autoconf-2.13" ;;
# if you change the "latest" version here, change also autotools_env_setup
latest|2.5) _autoconf_atom=">=sys-devel/autoconf-2.69" ;;
*) die "Invalid WANT_AUTOCONF value '${WANT_AUTOCONF}'" ;;
esac
export WANT_AUTOCONF
fi
_libtool_atom=">=sys-devel/libtool-2.4"
if [[ -n ${WANT_LIBTOOL} ]] ; then
case ${WANT_LIBTOOL} in
none) _libtool_atom="" ;;
latest) ;;
*) die "Invalid WANT_LIBTOOL value '${WANT_LIBTOOL}'" ;;
esac
export WANT_LIBTOOL
fi
AUTOTOOLS_DEPEND="${_automake_atom}
${_autoconf_atom}
${_libtool_atom}"
RDEPEND=""
# @ECLASS-VARIABLE: AUTOTOOLS_AUTO_DEPEND
# @DESCRIPTION:
# Set to 'no' to disable automatically adding to DEPEND. This lets
# ebuilds form conditional depends by using ${AUTOTOOLS_DEPEND} in
# their own DEPEND string.
: ${AUTOTOOLS_AUTO_DEPEND:=yes}
if [[ ${AUTOTOOLS_AUTO_DEPEND} != "no" ]] ; then
case ${EAPI:-0} in
0|1|2|3|4|5|6) DEPEND=${AUTOTOOLS_DEPEND} ;;
7) BDEPEND=${AUTOTOOLS_DEPEND} ;;
esac
fi
__AUTOTOOLS_AUTO_DEPEND=${AUTOTOOLS_AUTO_DEPEND} # See top of eclass
unset _automake_atom _autoconf_atom
# @ECLASS-VARIABLE: AM_OPTS
# @DEFAULT_UNSET
# @DESCRIPTION:
# Additional options to pass to automake during
# eautoreconf call.
# @ECLASS-VARIABLE: AT_NOEAUTOMAKE
# @DEFAULT_UNSET
# @DESCRIPTION:
# Don't run eautomake command if set to 'yes'; only used to workaround
# broken packages. Generally you should, instead, fix the package to
# not call AM_INIT_AUTOMAKE if it doesn't actually use automake.
# @ECLASS-VARIABLE: AT_NOELIBTOOLIZE
# @DEFAULT_UNSET
# @DESCRIPTION:
# Don't run elibtoolize command if set to 'yes',
# useful when elibtoolize needs to be ran with
# particular options
# @ECLASS-VARIABLE: AT_M4DIR
# @DESCRIPTION:
# Additional director(y|ies) aclocal should search
: ${AT_M4DIR:=}
# @ECLASS-VARIABLE: AT_SYS_M4DIR
# @INTERNAL
# @DESCRIPTION:
# For system integrators, a list of additional aclocal search paths.
# This variable gets eval-ed, so you can use variables in the definition
# that may not be valid until eautoreconf & friends are run.
: ${AT_SYS_M4DIR:=}
# @FUNCTION: eautoreconf
# @DESCRIPTION:
# This function mimes the behavior of autoreconf, but uses the different
# eauto* functions to run the tools. It doesn't accept parameters, but
# the directory with include files can be specified with AT_M4DIR variable.
#
# Should do a full autoreconf - normally what most people will be interested in.
# Also should handle additional directories specified by AC_CONFIG_SUBDIRS.
eautoreconf() {
local x g
# Subdirs often share a common build dir #529404. If so, we can't safely
# run in parallel because many tools clobber the content in there. Libtool
# and automake both `rm && cp` while aclocal reads the output. We might be
# able to handle this if we split the steps and grab locks on the dirs the
# tools actually write to. Then we'd run all the common tools that use
# those inputs. Doing this in bash does not scale easily.
# If we do re-enable parallel support, make sure #426512 is handled.
if [[ -z ${AT_NO_RECURSIVE} ]] ; then
# Take care of subdirs
for x in $(autotools_check_macro_val AC_CONFIG_SUBDIRS) ; do
if [[ -d ${x} ]] ; then
pushd "${x}" >/dev/null
# Avoid unsafe nested multijob_finish_one for bug #426512.
AT_NOELIBTOOLIZE="yes" eautoreconf || die
popd >/dev/null
fi
done
fi
einfo "Running eautoreconf in '${PWD}' ..."
local m4dirs=$(autotools_check_macro_val AC_CONFIG_{AUX,MACRO}_DIR)
[[ -n ${m4dirs} ]] && mkdir -p ${m4dirs}
# Run all the tools before aclocal so we can gather the .m4 files.
local i tools=(
# <tool> <was run> <command>
glibgettext false "autotools_run_tool glib-gettextize --copy --force"
gettext false "autotools_run_tool --at-missing autopoint --force"
# intltool must come after autopoint.
intltool false "autotools_run_tool intltoolize --automake --copy --force"
gtkdoc false "autotools_run_tool --at-missing gtkdocize --copy"
gnomedoc false "autotools_run_tool --at-missing gnome-doc-prepare --copy --force"
libtool false "_elibtoolize --auto-ltdl --install --copy --force"
)
for (( i = 0; i < ${#tools[@]}; i += 3 )) ; do
if _at_uses_${tools[i]} ; then
tools[i+1]=true
${tools[i+2]}
fi
done
# Generate aclocal.m4 with our up-to-date m4 files.
local rerun_aclocal=false
eaclocal
# Check to see if we had macros expanded by other macros or in other
# m4 files that we couldn't detect early. This is uncommon, but some
# packages do this, so we have to handle it correctly.
for (( i = 0; i < ${#tools[@]}; i += 3 )) ; do
if ! ${tools[i+1]} && _at_uses_${tools[i]} ; then
${tools[i+2]}
rerun_aclocal=true
fi
done
${rerun_aclocal} && eaclocal
if [[ ${WANT_AUTOCONF} = 2.1 ]] ; then
eautoconf
else
eautoconf --force
fi
eautoheader
[[ ${AT_NOEAUTOMAKE} != "yes" ]] && FROM_EAUTORECONF="yes" eautomake ${AM_OPTS}
if [[ ${AT_NOELIBTOOLIZE} != "yes" ]] ; then
# Call it here to prevent failures due to elibtoolize called _before_
# eautoreconf.
elibtoolize --force "${PWD}"
fi
return 0
}
# @FUNCTION: _at_uses_pkg
# @USAGE: <macros>
# @INTERNAL
# See if the specified macros are enabled.
_at_uses_pkg() {
if [[ -n $(autotools_check_macro "$@") ]] ; then
return 0
else
# If the trace didn't find it (perhaps because aclocal.m4 hasn't
# been generated yet), cheat, but be conservative.
local macro args=()
for macro ; do
args+=( -e "^[[:space:]]*${macro}\>" )
done
egrep -q "${args[@]}" configure.??
fi
}
_at_uses_autoheader() { _at_uses_pkg A{C,M}_CONFIG_HEADER{S,}; }
_at_uses_automake() { _at_uses_pkg AM_INIT_AUTOMAKE; }
_at_uses_gettext() { _at_uses_pkg AM_GNU_GETTEXT_{,REQUIRE_}VERSION; }
_at_uses_glibgettext() { _at_uses_pkg AM_GLIB_GNU_GETTEXT; }
_at_uses_intltool() { _at_uses_pkg {AC,IT}_PROG_INTLTOOL; }
_at_uses_gtkdoc() { _at_uses_pkg GTK_DOC_CHECK; }
_at_uses_gnomedoc() { _at_uses_pkg GNOME_DOC_INIT; }
_at_uses_libtool() { _at_uses_pkg A{C,M}_PROG_LIBTOOL LT_INIT; }
_at_uses_libltdl() { _at_uses_pkg LT_CONFIG_LTDL_DIR; }
# @FUNCTION: eaclocal_amflags
# @DESCRIPTION:
# Extract the ACLOCAL_AMFLAGS value from the Makefile.am and try to handle
# (most) of the crazy crap that people throw at us.
eaclocal_amflags() {
local aclocal_opts amflags_file
for amflags_file in GNUmakefile.am Makefile.am GNUmakefile.in Makefile.in ; do
[[ -e ${amflags_file} ]] || continue
# setup the env in case the pkg does something crazy
# in their ACLOCAL_AMFLAGS. like run a shell script
# which turns around and runs autotools. #365401
# or split across multiple lines. #383525
autotools_env_setup
aclocal_opts=$(sed -n \
"/^ACLOCAL_AMFLAGS[[:space:]]*=/{ \
# match the first line
s:[^=]*=::p; \
# then gobble up all escaped lines
: nextline /\\\\$/{ n; p; b nextline; } \
}" ${amflags_file})
eval aclocal_opts=\""${aclocal_opts}"\"
break
done
echo ${aclocal_opts}
}
# @FUNCTION: eaclocal
# @DESCRIPTION:
# These functions runs the autotools using autotools_run_tool with the
# specified parametes. The name of the tool run is the same of the function
# without e prefix.
# They also force installing the support files for safety.
# Respects AT_M4DIR for additional directories to search for macro's.
eaclocal() {
[[ ! -f aclocal.m4 || -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \
autotools_run_tool --at-m4flags aclocal "$@" $(eaclocal_amflags)
}
# @FUNCTION: _elibtoolize
# @DESCRIPTION:
# Runs libtoolize.
#
# Note the '_' prefix: avoid collision with elibtoolize() from libtool.eclass.
_elibtoolize() {
local LIBTOOLIZE=${LIBTOOLIZE:-$(type -P glibtoolize > /dev/null && echo glibtoolize || echo libtoolize)}
if [[ $1 == "--auto-ltdl" ]] ; then
shift
_at_uses_libltdl && set -- "$@" --ltdl
fi
[[ -f GNUmakefile.am || -f Makefile.am ]] && set -- "$@" --automake
autotools_run_tool ${LIBTOOLIZE} "$@"
}
# @FUNCTION: eautoheader
# @DESCRIPTION:
# Runs autoheader.
eautoheader() {
_at_uses_autoheader || return 0
autotools_run_tool --at-no-fail --at-m4flags autoheader "$@"
}
# @FUNCTION: eautoconf
# @DESCRIPTION:
# Runs autoconf.
eautoconf() {
if [[ ! -f configure.ac && ! -f configure.in ]] ; then
echo
eerror "No configure.{ac,in} present in '${PWD}'!"
echo
die "No configure.{ac,in} present!"
fi
if [[ ${WANT_AUTOCONF} != "2.1" && -e configure.in ]] ; then
eqawarn "This package has a configure.in file which has long been deprecated. Please"
eqawarn "update it to use configure.ac instead as newer versions of autotools will die"
eqawarn "when it finds this file. See https://bugs.gentoo.org/426262 for details."
fi
# Install config.guess and config.sub which are required by many macros in Autoconf >=2.70.
case ${EAPI:-0} in
0|1|2|3|4|5|6)
cp "${EPREFIX}/usr/share/gnuconfig/config.guess" . || die
cp "${EPREFIX}/usr/share/gnuconfig/config.sub" . || die
;;
*)
cp "${BROOT}/usr/share/gnuconfig/config.guess" . || die
cp "${BROOT}/usr/share/gnuconfig/config.sub" . || die
;;
esac
autotools_run_tool --at-m4flags autoconf "$@"
}
# @FUNCTION: eautomake
# @DESCRIPTION:
# Runs automake.
eautomake() {
local extra_opts=()
local makefile_name
# Run automake if:
# - a Makefile.am type file exists
# - the configure script is using the AM_INIT_AUTOMAKE directive
for makefile_name in {GNUmakefile,{M,m}akefile}.am "" ; do
[[ -f ${makefile_name} ]] && break
done
_automake_version() {
autotools_run_tool --at-output automake --version 2>/dev/null |
sed -n -e '1{s:.*(GNU automake) ::p;q}'
}
if [[ -z ${makefile_name} ]] ; then
_at_uses_automake || return 0
elif [[ -z ${FROM_EAUTORECONF} && -f ${makefile_name%.am}.in ]]; then
local used_automake
local installed_automake
installed_automake=$(WANT_AUTOMAKE= _automake_version)
used_automake=$(head -n 1 < ${makefile_name%.am}.in | \
sed -e 's:.*by automake \(.*\) from .*:\1:')
if [[ ${installed_automake} != ${used_automake} ]]; then
ewarn "Automake used for the package (${used_automake}) differs from" \
"the installed version (${installed_automake})."
ewarn "Forcing a full rebuild of the autotools to workaround."
eautoreconf
return 0
fi
fi
[[ -f INSTALL && -f AUTHORS && -f ChangeLog && -f NEWS && -f README ]] \
|| extra_opts+=( --foreign )
# Older versions of automake do not support --force-missing. But we want
# to use this whenever possible to update random bundled files #133489.
case $(_automake_version) in
1.4|1.4[.-]*) ;;
*) extra_opts+=( --force-missing ) ;;
esac
autotools_run_tool automake --add-missing --copy "${extra_opts[@]}" "$@"
}
# @FUNCTION: eautopoint
# @DESCRIPTION:
# Runs autopoint (from the gettext package).
eautopoint() {
autotools_run_tool autopoint "$@"
}
# @FUNCTION: config_rpath_update
# @USAGE: [destination]
# @DESCRIPTION:
# Some packages utilize the config.rpath helper script, but don't
# use gettext directly. So we have to copy it in manually since
# we can't let `autopoint` do it for us.
config_rpath_update() {
local dst src=$(type -P gettext | sed 's:bin/gettext:share/gettext/config.rpath:')
[[ $# -eq 0 ]] && set -- $(find -name config.rpath)
[[ $# -eq 0 ]] && return 0
einfo "Updating all config.rpath files"
for dst in "$@" ; do
einfo " ${dst}"
cp "${src}" "${dst}" || die
done
}
# @FUNCTION: autotools_env_setup
# @INTERNAL
# @DESCRIPTION:
# Process the WANT_AUTO{CONF,MAKE} flags.
autotools_env_setup() {
# We do the "latest" → version switch here because it solves
# possible order problems, see bug #270010 as an example.
if [[ ${WANT_AUTOMAKE} == "latest" ]]; then
local pv
for pv in ${_LATEST_AUTOMAKE[@]/#*:} ; do
# Break on first hit to respect _LATEST_AUTOMAKE order.
local hv_args=""
case ${EAPI:-0} in
5|6)
hv_args="--host-root"
;;
7)
hv_args="-b"
;;
esac
ROOT=/ has_version ${hv_args} "=sys-devel/automake-${pv}*" && export WANT_AUTOMAKE="${pv}" && break
done
[[ ${WANT_AUTOMAKE} == "latest" ]] && \
die "Cannot find the latest automake! Tried ${_LATEST_AUTOMAKE[*]}"
fi
[[ ${WANT_AUTOCONF} == "latest" ]] && export WANT_AUTOCONF=2.5
}
# @FUNCTION: autotools_run_tool
# @USAGE: [--at-no-fail] [--at-m4flags] [--at-missing] [--at-output] <autotool> [tool-specific flags]
# @INTERNAL
# @DESCRIPTION:
# Run the specified autotool helper, but do logging and error checking
# around it in the process.
autotools_run_tool() {
# Process our own internal flags first
local autofail=true m4flags=false missing_ok=false return_output=false
while [[ -n $1 ]] ; do
case $1 in
--at-no-fail) autofail=false;;
--at-m4flags) m4flags=true;;
--at-missing) missing_ok=true;;
--at-output) return_output=true;;
# whatever is left goes to the actual tool
*) break;;
esac
shift
done
if [[ ${EBUILD_PHASE} != "unpack" && ${EBUILD_PHASE} != "prepare" ]]; then
ewarn "QA Warning: running $1 in ${EBUILD_PHASE} phase"
fi
if ${missing_ok} && ! type -P ${1} >/dev/null ; then
einfo "Skipping '$*' due $1 not installed"
return 0
fi
autotools_env_setup
# Allow people to pass in full paths. #549268
local STDERR_TARGET="${T}/${1##*/}.out"
# most of the time, there will only be one run, but if there are
# more, make sure we get unique log filenames
if [[ -e ${STDERR_TARGET} ]] ; then
local i=1
while :; do
STDERR_TARGET="${T}/${1##*/}-${i}.out"
[[ -e ${STDERR_TARGET} ]] || break
: $(( i++ ))
done
fi
if ${m4flags} ; then
set -- "${1}" $(autotools_m4dir_include) $(autotools_m4sysdir_include) "${@:2}"
fi
# If the caller wants to probe something, then let them do it directly.
if ${return_output} ; then
"$@"
return
fi
printf "***** $1 *****\n***** PWD: ${PWD}\n***** $*\n\n" > "${STDERR_TARGET}"
ebegin "Running $@"
"$@" >> "${STDERR_TARGET}" 2>&1
if ! eend $? && ${autofail} ; then
echo
eerror "Failed Running $1 !"
eerror
eerror "Include in your bugreport the contents of:"
eerror
eerror " ${STDERR_TARGET}"
echo
die "Failed Running $1 !"
fi
}
# Internal function to check for support
# Keep a list of all the macros we might use so that we only
# have to run the trace code once. Order doesn't matter.
ALL_AUTOTOOLS_MACROS=(
A{C,M}_PROG_LIBTOOL LT_INIT LT_CONFIG_LTDL_DIR
A{C,M}_CONFIG_HEADER{S,}
AC_CONFIG_SUBDIRS
AC_CONFIG_AUX_DIR AC_CONFIG_MACRO_DIR
AM_INIT_AUTOMAKE
AM_GLIB_GNU_GETTEXT
AM_GNU_GETTEXT_{,REQUIRE_}VERSION
{AC,IT}_PROG_INTLTOOL
GTK_DOC_CHECK
GNOME_DOC_INIT
)
autotools_check_macro() {
[[ -f configure.ac || -f configure.in ]] || return 0
# We can run in multiple dirs, so we have to cache the trace
# data in $PWD rather than an env var.
local trace_file=".__autoconf_trace_data"
if [[ ! -e ${trace_file} ]] || [[ ! aclocal.m4 -ot ${trace_file} ]] ; then
WANT_AUTOCONF="2.5" autoconf \
$(autotools_m4dir_include) \
${ALL_AUTOTOOLS_MACROS[@]/#/--trace=} > ${trace_file} 2>/dev/null
fi
local macro args=()
for macro ; do
has ${macro} ${ALL_AUTOTOOLS_MACROS[@]} || die "internal error: add ${macro} to ALL_AUTOTOOLS_MACROS"
args+=( -e ":${macro}:" )
done
grep "${args[@]}" ${trace_file}
}
# @FUNCTION: autotools_check_macro_val
# @USAGE: <macro> [macros]
# @INTERNAL
# @DESCRIPTION:
# Look for a macro and extract its value.
autotools_check_macro_val() {
local macro scan_out
for macro ; do
autotools_check_macro "${macro}" | \
gawk -v macro="${macro}" \
'($0 !~ /^[[:space:]]*(#|dnl)/) {
if (match($0, macro ":(.*)$", res))
print res[1]
}' | uniq
done
return 0
}
_autotools_m4dir_include() {
local x include_opts flag
# Use the right flag to autoconf based on the version #448986
[[ ${WANT_AUTOCONF} == "2.1" ]] \
&& flag="l" \
|| flag="I"
for x in "$@" ; do
case ${x} in
# We handle it below
-${flag}) ;;
*)
[[ ! -d ${x} ]] && ewarn "autotools.eclass: '${x}' does not exist"
include_opts+=" -${flag} ${x}"
;;
esac
done
echo ${include_opts}
}
autotools_m4dir_include() { _autotools_m4dir_include ${AT_M4DIR} ; }
autotools_m4sysdir_include() {
# First try to use the paths the system integrator has set up.
local paths=( $(eval echo ${AT_SYS_M4DIR}) )
if [[ ${#paths[@]} -eq 0 && -n ${SYSROOT} ]] ; then
# If they didn't give us anything, then default to the SYSROOT.
# This helps when cross-compiling.
local path="${SYSROOT}/usr/share/aclocal"
[[ -d ${path} ]] && paths+=( "${path}" )
fi
_autotools_m4dir_include "${paths[@]}"
}
fi
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