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Revision 1.21 Revision 1.143
1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2012 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/autotools.eclass,v 1.21 2005/09/08 15:04:47 flameeyes Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/autotools.eclass,v 1.143 2012/06/05 18:31:54 grobian Exp $
4# 4
5# Author: Diego Pettenò <flameeyes@gentoo.org> 5# @ECLASS: autotools.eclass
6# Enhancements: Martin Schlemmer <azarah@gentoo.org> 6# @MAINTAINER:
7# 7# base-system@gentoo.org
8# @BLURB: Regenerates auto* build scripts
9# @DESCRIPTION:
8# This eclass is for handling autotooled software packages that 10# This eclass is for safely handling autotooled software packages that need to
9# needs to regenerate their build scripts. 11# regenerate their build scripts. All functions will abort in case of errors.
10#
11# NB: If you add anything, please comment it!
12 12
13inherit eutils gnuconfig 13# Note: We require GNU m4, as does autoconf. So feel free to use any features
14# from the GNU version of m4 without worrying about other variants (i.e. BSD).
14 15
15#DEPEND="sys-devel/automake 16if [[ ${___ECLASS_ONCE_AUTOTOOLS} != "recur -_+^+_- spank" ]] ; then
16# sys-devel/autoconf 17___ECLASS_ONCE_AUTOTOOLS="recur -_+^+_- spank"
17# sys-devel/libtool"
18#
19# Ebuilds should rather depend on the proper version of the tool.
20 18
21# Variables: 19inherit libtool
22# 20
21# @ECLASS-VARIABLE: WANT_AUTOCONF
22# @DESCRIPTION:
23# The major version of autoconf your package needs
24: ${WANT_AUTOCONF:=latest}
25
26# @ECLASS-VARIABLE: WANT_AUTOMAKE
27# @DESCRIPTION:
28# The major version of automake your package needs
29: ${WANT_AUTOMAKE:=latest}
30
31# @ECLASS-VARIABLE: WANT_LIBTOOL
32# @DESCRIPTION:
33# Do you want libtool? Valid values here are "latest" and "none".
34: ${WANT_LIBTOOL:=latest}
35
36# @ECLASS-VARIABLE: _LATEST_AUTOMAKE
37# @INTERNAL
38# @DESCRIPTION:
39# CONSTANT!
40# The latest major version/slot of automake available on each arch. #312315
41# If a newer slot is stable on any arch, and is NOT reflected in this list,
42# then circular dependencies may arise during emerge @system bootstraps.
43# Do NOT change this variable in your ebuilds!
44# If you want to force a newer minor version, you can specify the correct
45# WANT value by using a colon: <PV>[:<WANT_AUTOMAKE>]
46_LATEST_AUTOMAKE=( 1.11.1:1.11 )
47
48_automake_atom="sys-devel/automake"
49_autoconf_atom="sys-devel/autoconf"
50if [[ -n ${WANT_AUTOMAKE} ]]; then
51 case ${WANT_AUTOMAKE} in
52 # Even if the package doesn't use automake, we still need to depend
53 # on it because we run aclocal to process m4 macros. This matches
54 # the autoreconf tool, so this requirement is correct. #401605
55 none) ;;
56 latest)
57 # Use SLOT deps if we can. For EAPI=0, we get pretty close.
58 if [[ ${EAPI:-0} != 0 ]] ; then
59 _automake_atom="|| ( `printf '>=sys-devel/automake-%s:%s ' ${_LATEST_AUTOMAKE[@]/:/ }` )"
60 else
61 _automake_atom="|| ( `printf '>=sys-devel/automake-%s ' ${_LATEST_AUTOMAKE[@]/%:*}` )"
62 fi
63 ;;
64 *) _automake_atom="=sys-devel/automake-${WANT_AUTOMAKE}*" ;;
65 esac
66 export WANT_AUTOMAKE
67fi
68
69if [[ -n ${WANT_AUTOCONF} ]] ; then
70 case ${WANT_AUTOCONF} in
71 none) _autoconf_atom="" ;; # some packages don't require autoconf at all
72 2.1) _autoconf_atom="=sys-devel/autoconf-${WANT_AUTOCONF}*" ;;
73 # if you change the "latest" version here, change also autotools_env_setup
74 latest|2.5) _autoconf_atom=">=sys-devel/autoconf-2.68" ;;
75 *) die "Invalid WANT_AUTOCONF value '${WANT_AUTOCONF}'" ;;
76 esac
77 export WANT_AUTOCONF
78fi
79
80_libtool_atom="sys-devel/libtool"
81if [[ -n ${WANT_LIBTOOL} ]] ; then
82 case ${WANT_LIBTOOL} in
83 none) _libtool_atom="" ;;
84 latest) ;;
85 *) die "Invalid WANT_LIBTOOL value '${WANT_LIBTOOL}'" ;;
86 esac
87 export WANT_LIBTOOL
88fi
89
90AUTOTOOLS_DEPEND="${_automake_atom} ${_autoconf_atom} ${_libtool_atom}"
91RDEPEND=""
92
93# @ECLASS-VARIABLE: AUTOTOOLS_AUTO_DEPEND
94# @DESCRIPTION:
95# Set to 'no' to disable automatically adding to DEPEND. This lets
96# ebuilds former conditional depends by using ${AUTOTOOLS_DEPEND} in
97# their own DEPEND string.
98: ${AUTOTOOLS_AUTO_DEPEND:=yes}
99if [[ ${AUTOTOOLS_AUTO_DEPEND} != "no" ]] ; then
100 DEPEND=${AUTOTOOLS_DEPEND}
101fi
102
103unset _automake_atom _autoconf_atom
104
105# @ECLASS-VARIABLE: AM_OPTS
106# @DEFAULT_UNSET
107# @DESCRIPTION:
108# Additional options to pass to automake during
109# eautoreconf call.
110
111# @ECLASS-VARIABLE: AT_NOEAUTOMAKE
112# @DEFAULT_UNSET
113# @DESCRIPTION:
114# Don't run eautomake command if set to 'yes'; only used to workaround
115# broken packages. Generally you should, instead, fix the package to
116# not call AM_INIT_AUTOMAKE if it doesn't actually use automake.
117
118# @ECLASS-VARIABLE: AT_NOELIBTOOLIZE
119# @DEFAULT_UNSET
120# @DESCRIPTION:
121# Don't run elibtoolize command if set to 'yes',
122# useful when elibtoolize needs to be ran with
123# particular options
124
125# @ECLASS-VARIABLE: AT_M4DIR
126# @DESCRIPTION:
23# AT_M4DIR - Additional director(y|ies) aclocal should search 127# Additional director(y|ies) aclocal should search
24# AT_GNUCONF_UPDATE - Should gnuconfig_update() be run (normally handled by 128: ${AT_M4DIR:=}
25# econf()) [yes|no]
26 129
27# Functions: 130# @ECLASS-VARIABLE: AT_SYS_M4DIR
28# 131# @INTERNAL
29# eautoreconf() - Should do a full autoreconf - normally what most people 132# @DESCRIPTION:
30# will be interested in. Also should handle additional 133# For system integrators, a list of additional aclocal search paths.
31# directories specified by AC_CONFIG_SUBDIRS. 134# This variable gets eval-ed, so you can use variables in the definition
32# eaclocal() - Runs aclocal. Respects AT_M4DIR for additional directories 135# that may not be valid until eautoreconf & friends are run.
33# to search for macro's. 136: ${AT_SYS_M4DIR:=}
34# _elibtoolize() - Runs libtoolize. Note the '_' prefix .. to not collide
35# with elibtoolize() from libtool.eclass
36# eautoconf - Runs autoconf.
37# eautoheader - Runs autoheader.
38# eautomake - Runs automake
39#
40 137
41# XXX: M4DIR should be depreciated 138# @FUNCTION: eautoreconf
42AT_M4DIR=${AT_M4DIR:-${M4DIR}} 139# @DESCRIPTION:
43AT_GNUCONF_UPDATE="no"
44
45
46# This function mimes the behavior of autoreconf, but uses the different 140# This function mimes the behavior of autoreconf, but uses the different
47# eauto* functions to run the tools. It doesn't accept parameters, but 141# eauto* functions to run the tools. It doesn't accept parameters, but
48# the directory with include files can be specified with AT_M4DIR variable. 142# the directory with include files can be specified with AT_M4DIR variable.
49# 143#
50# Note: doesn't run autopoint right now, but runs gnuconfig_update. 144# Should do a full autoreconf - normally what most people will be interested in.
145# Also should handle additional directories specified by AC_CONFIG_SUBDIRS.
51eautoreconf() { 146eautoreconf() {
52 local pwd=$(pwd) x 147 local x g
53 148
149 if [[ -z ${AT_NO_RECURSIVE} ]]; then
54 # Take care of subdirs 150 # Take care of subdirs
55 for x in $(autotools_get_subdirs); do 151 for x in $(autotools_check_macro_val AC_CONFIG_SUBDIRS) ; do
56 if [[ -d ${x} ]] ; then 152 if [[ -d ${x} ]] ; then
57 cd "${x}" 153 pushd "${x}" >/dev/null
58 eautoreconf 154 AT_NOELIBTOOLIZE="yes" eautoreconf
59 cd "${pwd}" 155 popd >/dev/null
156 fi
157 done
158 fi
159
160 einfo "Running eautoreconf in '${PWD}' ..."
161
162 local m4dirs=$(autotools_check_macro_val AC_CONFIG_{AUX,MACRO}_DIR)
163 [[ -n ${m4dirs} ]] && mkdir -p ${m4dirs}
164
165 # Run all the tools before aclocal so we can gather the .m4 files.
166 local i tools=(
167 # <tool> <was run> <command>
168 gettext false "eautopoint --force"
169 # intltool must come after autopoint.
170 intltool false "autotools_run_tool intltoolize --automake --copy --force"
171 libtool false "_elibtoolize --install --copy --force"
172 )
173 for (( i = 0; i < ${#tools[@]}; i += 3 )) ; do
174 if _at_uses_${tools[i]} ; then
175 tools[i+1]=true
176 ${tools[i+2]}
60 fi 177 fi
61 done 178 done
62 179
180 # Generate aclocal.m4 with our up-to-date m4 files.
181 local rerun_aclocal=false
63 eaclocal 182 eaclocal
64 _elibtoolize --copy --force 183
184 # Check to see if we had macros expanded by other macros or in other
185 # m4 files that we couldn't detect early. This is uncommon, but some
186 # packages do this, so we have to handle it correctly.
187 for (( i = 0; i < ${#tools[@]}; i += 3 )) ; do
188 if ! ${tools[i+1]} && _at_uses_${tools[i]} ; then
189 ${tools[i+2]}
190 rerun_aclocal=true
191 fi
192 done
193 ${rerun_aclocal} && eaclocal
194
65 eautoconf 195 eautoconf
66 eautoheader 196 eautoheader
67 eautomake 197 [[ ${AT_NOEAUTOMAKE} != "yes" ]] && FROM_EAUTORECONF="yes" eautomake ${AM_OPTS}
68 198
69 # Normally run by econf() 199 [[ ${AT_NOELIBTOOLIZE} == "yes" ]] && return 0
70 [[ ${AT_GNUCONF_UPDATE} == "yes" ]] && gnuconfig_update 200
201 # Call it here to prevent failures due to elibtoolize called _before_
202 # eautoreconf. We set $S because elibtoolize runs on that #265319
203 S=${PWD} elibtoolize --force
71 204
72 return 0 205 return 0
73} 206}
74 207
208# @FUNCTION: _at_uses_pkg
209# @USAGE: <macros>
210# @INTERNAL
211# See if the specified macros are enabled.
212_at_uses_pkg() {
213 if [[ -n $(autotools_check_macro "$@") ]] ; then
214 return 0
215 else
216 # If the trace didn't find it (perhaps because aclocal.m4 hasn't
217 # been generated yet), cheat, but be conservative.
218 local macro args=()
219 for macro ; do
220 args+=( -e "^[[:space:]]*${macro}\>" )
221 done
222 egrep -q "${args[@]}" configure.??
223 fi
224}
225_at_uses_autoheader() { _at_uses_pkg AC_CONFIG_HEADERS; }
226_at_uses_automake() { _at_uses_pkg AM_INIT_AUTOMAKE; }
227_at_uses_gettext() { _at_uses_pkg AM_GNU_GETTEXT_VERSION; }
228_at_uses_intltool() { _at_uses_pkg {AC,IT}_PROG_INTLTOOL; }
229_at_uses_libtool() { _at_uses_pkg A{C,M}_PROG_LIBTOOL LT_INIT; }
230
231# @FUNCTION: eaclocal_amflags
232# @DESCRIPTION:
233# Extract the ACLOCAL_AMFLAGS value from the Makefile.am and try to handle
234# (most) of the crazy crap that people throw at us.
235eaclocal_amflags() {
236 local aclocal_opts amflags_file
237
238 for amflags_file in GNUmakefile.am Makefile.am GNUmakefile.in Makefile.in ; do
239 [[ -e ${amflags_file} ]] || continue
240 # setup the env in case the pkg does something crazy
241 # in their ACLOCAL_AMFLAGS. like run a shell script
242 # which turns around and runs autotools. #365401
243 # or split across multiple lines. #383525
244 autotools_env_setup
245 aclocal_opts=$(sed -n \
246 "/^ACLOCAL_AMFLAGS[[:space:]]*=/{ \
247 # match the first line
248 s:[^=]*=::p; \
249 # then gobble up all escaped lines
250 : nextline /\\\\$/{ n; p; b nextline; } \
251 }" ${amflags_file})
252 eval aclocal_opts=\""${aclocal_opts}"\"
253 break
254 done
255
256 echo ${aclocal_opts}
257}
258
259# @FUNCTION: eaclocal
260# @DESCRIPTION:
75# These functions runs the autotools using autotools_run_tool with the 261# These functions runs the autotools using autotools_run_tool with the
76# specified parametes. The name of the tool run is the same of the function 262# specified parametes. The name of the tool run is the same of the function
77# without e prefix. 263# without e prefix.
78# They also force installing the support files for safety. 264# They also force installing the support files for safety.
265# Respects AT_M4DIR for additional directories to search for macro's.
79eaclocal() { 266eaclocal() {
80 local aclocal_opts
81
82 # XXX: M4DIR should be depreciated
83 AT_M4DIR=${AT_M4DIR:-${M4DIR}}
84
85 if [[ -n ${AT_M4DIR} ]] ; then
86 for x in ${AT_M4DIR} ; do
87 case "${x}" in
88 "-I")
89 # We handle it below
90 ;;
91 "-I"*)
92 # Invalid syntax, but maybe we should help out ...
93 ewarn "eaclocal: Proper syntax is (note the space after '-I'): aclocal -I <dir>"
94 aclocal_opts="${aclocal_opts} -I ${x}"
95 ;;
96 *)
97 [[ ! -d ${x} ]] && ewarn "eaclocal: '${x}' does not exist"
98 aclocal_opts="${aclocal_opts} -I ${x}"
99 ;;
100 esac
101 done
102 fi
103
104 [[ -f aclocal.m4 && -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \ 267 [[ ! -f aclocal.m4 || -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \
105 autotools_run_tool aclocal "$@" ${aclocal_opts} 268 autotools_run_tool --at-m4flags aclocal "$@" $(eaclocal_amflags)
106} 269}
107 270
271# @FUNCTION: _elibtoolize
272# @DESCRIPTION:
273# Runs libtoolize. If --install is the first arg, automatically drop it if
274# the active libtool version doesn't support it.
275#
276# Note the '_' prefix .. to not collide with elibtoolize() from libtool.eclass.
108_elibtoolize() { 277_elibtoolize() {
109 local opts 278 local LIBTOOLIZE=${LIBTOOLIZE:-libtoolize}
279 type -P glibtoolize > /dev/null && LIBTOOLIZE=glibtoolize
110 280
111 # Check if we should run libtoolize 281 [[ -f GNUmakefile.am || -f Makefile.am ]] && set -- "$@" --automake
112 [[ -n $(autotools_check_macro "AC_PROG_LIBTOOL") ]] || return 0 282 if [[ $1 == "--install" ]] ; then
283 ${LIBTOOLIZE} -n --install >& /dev/null || shift
284 fi
113 285
114 [[ -f Makefile.am ]] && opts="--automake"
115
116 [[ "${USERLAND}" == "Darwin" ]] && LIBTOOLIZE="glibtoolize"
117 autotools_run_tool ${LIBTOOLIZE:-libtoolize} "$@" ${opts} 286 autotools_run_tool ${LIBTOOLIZE} "$@" ${opts}
118
119 # Need to rerun aclocal
120 eaclocal
121} 287}
122 288
289# @FUNCTION: eautoheader
290# @DESCRIPTION:
291# Runs autoheader.
123eautoheader() { 292eautoheader() {
124 # Check if we should run autoheader 293 _at_uses_autoheader || return 0
125 [[ -n $(autotools_check_macro "AC_CONFIG_HEADERS") ]] || return 0 294 autotools_run_tool --at-no-fail --at-m4flags autoheader "$@"
126 autotools_run_tool autoheader "$@"
127} 295}
128 296
297# @FUNCTION: eautoconf
298# @DESCRIPTION:
299# Runs autoconf.
129eautoconf() { 300eautoconf() {
130 if [[ ! -f configure.ac && ! -f configure.in ]] ; then 301 if [[ ! -f configure.ac && ! -f configure.in ]] ; then
131 echo 302 echo
132 eerror "No configure.{ac,in} present in '$(pwd | sed -e 's:.*/::')'!" 303 eerror "No configure.{ac,in} present in '${PWD}'!"
133 echo 304 echo
134 die "No configure.{ac,in} present!" 305 die "No configure.{ac,in} present!"
135 fi 306 fi
136 307
137 autotools_run_tool autoconf "$@" 308 autotools_run_tool --at-m4flags autoconf "$@"
138} 309}
139 310
311# @FUNCTION: eautomake
312# @DESCRIPTION:
313# Runs automake.
140eautomake() { 314eautomake() {
141 [[ -f Makefile.am ]] || return 0 315 local extra_opts
316 local makefile_name
317
318 # Run automake if:
319 # - a Makefile.am type file exists
320 # - the configure script is using the AM_INIT_AUTOMAKE directive
321 for makefile_name in {GNUmakefile,{M,m}akefile}.am "" ; do
322 [[ -f ${makefile_name} ]] && break
323 done
324
325 if [[ -z ${makefile_name} ]] ; then
326 _at_uses_automake || return 0
327
328 elif [[ -z ${FROM_EAUTORECONF} && -f ${makefile_name%.am}.in ]]; then
329 local used_automake
330 local installed_automake
331
332 installed_automake=$(WANT_AUTOMAKE= automake --version | head -n 1 | \
333 sed -e 's:.*(GNU automake) ::')
334 used_automake=$(head -n 1 < ${makefile_name%.am}.in | \
335 sed -e 's:.*by automake \(.*\) from .*:\1:')
336
337 if [[ ${installed_automake} != ${used_automake} ]]; then
338 einfo "Automake used for the package (${used_automake}) differs from"
339 einfo "the installed version (${installed_automake})."
340 eautoreconf
341 return 0
342 fi
343 fi
344
345 [[ -f INSTALL && -f AUTHORS && -f ChangeLog && -f NEWS && -f README ]] \
346 || extra_opts="${extra_opts} --foreign"
347
142 # --force-missing seems not to be recognized by some flavours of automake 348 # --force-missing seems not to be recognized by some flavours of automake
143 autotools_run_tool automake --add-missing --copy "$@" 349 autotools_run_tool automake --add-missing --copy ${extra_opts} "$@"
144} 350}
145 351
352# @FUNCTION: eautopoint
353# @DESCRIPTION:
354# Runs autopoint (from the gettext package).
355eautopoint() {
356 autotools_run_tool autopoint "$@"
357}
146 358
359# @FUNCTION: config_rpath_update
360# @USAGE: [destination]
361# @DESCRIPTION:
362# Some packages utilize the config.rpath helper script, but don't
363# use gettext directly. So we have to copy it in manually since
364# we can't let `autopoint` do it for us.
365config_rpath_update() {
366 local dst src=$(type -P gettext | sed 's:bin/gettext:share/gettext/config.rpath:')
147 367
148# Internal function to run an autotools' tool 368 [[ $# -eq 0 ]] && set -- $(find -name config.rpath)
369 [[ $# -eq 0 ]] && return 0
370
371 einfo "Updating all config.rpath files"
372 for dst in "$@" ; do
373 einfo " ${dst}"
374 cp "${src}" "${dst}" || die
375 done
376}
377
378# @FUNCTION: autotools_env_setup
379# @INTERNAL
380# @DESCRIPTION:
381# Process the WANT_AUTO{CONF,MAKE} flags.
382autotools_env_setup() {
383 # We do the "latest" → version switch here because it solves
384 # possible order problems, see bug #270010 as an example.
385 if [[ ${WANT_AUTOMAKE} == "latest" ]]; then
386 local pv
387 for pv in ${_LATEST_AUTOMAKE[@]/#*:} ; do
388 # has_version respects ROOT, but in this case, we don't want it to,
389 # thus "ROOT=/" prefix:
390 ROOT=/ has_version "=sys-devel/automake-${pv}*" && export WANT_AUTOMAKE="${pv}"
391 done
392 [[ ${WANT_AUTOMAKE} == "latest" ]] && \
393 die "Cannot find the latest automake! Tried ${_LATEST_AUTOMAKE}"
394 fi
395 [[ ${WANT_AUTOCONF} == "latest" ]] && export WANT_AUTOCONF=2.5
396}
397
398# @FUNCTION: autotools_run_tool
399# @USAGE: [--at-no-fail] [--at-m4flags] <autotool> [tool-specific flags]
400# @INTERNAL
401# @DESCRIPTION:
402# Run the specified autotool helper, but do logging and error checking
403# around it in the process.
149autotools_run_tool() { 404autotools_run_tool() {
405 # Process our own internal flags first
406 local autofail=true m4flags=false
407 while [[ -n $1 ]] ; do
408 case $1 in
409 --at-no-fail) autofail=false;;
410 --at-m4flags) m4flags=true;;
411 # whatever is left goes to the actual tool
412 *) break;;
413 esac
414 shift
415 done
416
417 if [[ ${EBUILD_PHASE} != "unpack" && ${EBUILD_PHASE} != "prepare" ]]; then
418 ewarn "QA Warning: running $1 in ${EBUILD_PHASE} phase"
419 fi
420
421 autotools_env_setup
422
150 local STDERR_TARGET="${T}/$$.out" 423 local STDERR_TARGET="${T}/$1.out"
151 local PATCH_TARGET="${T}/$$.patch" 424 # most of the time, there will only be one run, but if there are
425 # more, make sure we get unique log filenames
426 if [[ -e ${STDERR_TARGET} ]] ; then
152 local ris 427 local i=1
428 while :; do
429 STDERR_TARGET="${T}/$1-${i}.out"
430 [[ -e ${STDERR_TARGET} ]] || break
431 : $(( i++ ))
432 done
433 fi
153 434
154 echo "***** $1 *****" > ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/} 435 if ${m4flags} ; then
155 echo >> ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/} 436 set -- "${1}" $(autotools_m4dir_include) "${@:2}" $(autotools_m4sysdir_include)
437 fi
156 438
439 printf "***** $1 *****\n***** PWD: ${PWD}\n***** $*\n\n" > "${STDERR_TARGET}"
440
157 ebegin "Running $1" 441 ebegin "Running $@"
158 $@ >> ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/} 2>&1 442 "$@" >> "${STDERR_TARGET}" 2>&1
159 ris=$? 443 if ! eend $? && ${autofail} ; then
160 eend ${ris}
161
162 if [[ ${ris} != 0 ]]; then
163 echo 444 echo
164 eerror "Failed Running $1 !" 445 eerror "Failed Running $1 !"
165 eerror 446 eerror
166 eerror "Include in your bugreport the contents of:" 447 eerror "Include in your bugreport the contents of:"
167 eerror 448 eerror
168 eerror " ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/}" 449 eerror " ${STDERR_TARGET}"
169 echo 450 echo
170 die "Failed Running $1 !" 451 die "Failed Running $1 !"
171 fi 452 fi
172} 453}
173 454
174# Internal function to check for support 455# Internal function to check for support
456
457# Keep a list of all the macros we might use so that we only
458# have to run the trace code once. Order doesn't matter.
459ALL_AUTOTOOLS_MACROS=(
460 AC_PROG_LIBTOOL AM_PROG_LIBTOOL LT_INIT
461 AC_CONFIG_HEADERS
462 AC_CONFIG_SUBDIRS
463 AC_CONFIG_AUX_DIR AC_CONFIG_MACRO_DIR
464 AM_INIT_AUTOMAKE
465 AM_GNU_GETTEXT_VERSION
466 {AC,IT}_PROG_INTLTOOL
467)
175autotools_check_macro() { 468autotools_check_macro() {
176 [[ -f configure.ac || -f configure.in ]] && \ 469 [[ -f configure.ac || -f configure.in ]] || return 0
177 autoconf --trace=$1 2>/dev/null 470
471 # We can run in multiple dirs, so we have to cache the trace
472 # data in $PWD rather than an env var.
473 local trace_file=".__autoconf_trace_data"
474 if [[ ! -e ${trace_file} ]] || [[ aclocal.m4 -nt ${trace_file} ]] ; then
475 WANT_AUTOCONF="2.5" autoconf \
476 $(autotools_m4dir_include) \
477 ${ALL_AUTOTOOLS_MACROS[@]/#/--trace=} > ${trace_file} 2>/dev/null
478 fi
479
480 local macro args=()
481 for macro ; do
482 has ${macro} ${ALL_AUTOTOOLS_MACROS[@]} || die "internal error: add ${macro} to ALL_AUTOTOOLS_MACROS"
483 args+=( -e ":${macro}:" )
484 done
485 grep "${args[@]}" ${trace_file}
486}
487
488# @FUNCTION: autotools_check_macro_val
489# @USAGE: <macro> [macros]
490# @INTERNAL
491# @DESCRIPTION:
492# Look for a macro and extract its value.
493autotools_check_macro_val() {
494 local macro scan_out
495
496 for macro ; do
497 autotools_check_macro "${macro}" | \
498 gawk -v macro="${macro}" \
499 '($0 !~ /^[[:space:]]*(#|dnl)/) {
500 if (match($0, macro ":(.*)$", res))
501 print res[1]
502 }' | uniq
503 done
504
178 return 0 505 return 0
179} 506}
180 507
181# Internal function to get additional subdirs to configure 508_autotools_m4dir_include() {
182autotools_get_subdirs() { 509 local x include_opts
183 local subdirs_scan_out
184 510
185 subdirs_scan_out=$(autotools_check_macro "AC_CONFIG_SUBDIRS") 511 for x in "$@" ; do
186 [[ -n ${subdirs_scan_out} ]] || return 0 512 case ${x} in
513 # We handle it below
514 -I) ;;
515 *)
516 [[ ! -d ${x} ]] && ewarn "autotools.eclass: '${x}' does not exist"
517 include_opts+=" -I ${x}"
518 ;;
519 esac
520 done
187 521
188 echo "${subdirs_scan_out}" | gawk \ 522 echo ${include_opts}
189 '($0 !~ /^[[:space:]]*(#|dnl)/) {
190 if (match($0, "AC_CONFIG_SUBDIRS\\(\\[?([^\\])]*)", res)) {
191 split(res[1], DIRS, /[\])]/)
192 print DIRS[1]
193 }
194 }' | uniq
195
196 return 0
197} 523}
524autotools_m4dir_include() { _autotools_m4dir_include ${AT_M4DIR} ; }
525autotools_m4sysdir_include() { _autotools_m4dir_include $(eval echo ${AT_SYS_M4DIR}) ; }
198 526
527fi

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