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Revision 1.38 Revision 1.116
1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2011 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 1.38 2006/06/28 00:15:32 flameeyes Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/autotools.eclass,v 1.116 2011/12/14 20:46:36 vapier 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# 12
11# NB: If you add anything, please comment it! 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).
15
16if [[ ${___ECLASS_ONCE_AUTOTOOLS} != "recur -_+^+_- spank" ]] ; then
17___ECLASS_ONCE_AUTOTOOLS="recur -_+^+_- spank"
12 18
13inherit eutils libtool 19inherit eutils libtool
14 20
15DEPEND="sys-devel/automake 21# @ECLASS-VARIABLE: WANT_AUTOCONF
16 sys-devel/autoconf 22# @DESCRIPTION:
17 sys-devel/libtool" 23# The major version of autoconf your package needs
24: ${WANT_AUTOCONF:=latest}
18 25
19# Variables: 26# @ECLASS-VARIABLE: WANT_AUTOMAKE
20# 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.
41# If a newer version 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_LATEST_AUTOMAKE='1.11'
45
46_automake_atom="sys-devel/automake"
47_autoconf_atom="sys-devel/autoconf"
48if [[ -n ${WANT_AUTOMAKE} ]]; then
49 case ${WANT_AUTOMAKE} in
50 none) _automake_atom="" ;; # some packages don't require automake at all
51 # if you change the "latest" version here, change also autotools_run_tool
52 # this MUST reflect the latest stable major version for each arch!
53 latest) _automake_atom="|| ( `printf '=sys-devel/automake-%s* ' ${_LATEST_AUTOMAKE}` )" ;;
54 *) _automake_atom="=sys-devel/automake-${WANT_AUTOMAKE}*" ;;
55 esac
56 export WANT_AUTOMAKE
57fi
58
59if [[ -n ${WANT_AUTOCONF} ]] ; then
60 case ${WANT_AUTOCONF} in
61 none) _autoconf_atom="" ;; # some packages don't require autoconf at all
62 2.1) _autoconf_atom="=sys-devel/autoconf-${WANT_AUTOCONF}*" ;;
63 # if you change the “latest” version here, change also autotools_run_tool
64 latest|2.5) _autoconf_atom=">=sys-devel/autoconf-2.61" ;;
65 *) die "Invalid WANT_AUTOCONF value '${WANT_AUTOCONF}'" ;;
66 esac
67 export WANT_AUTOCONF
68fi
69
70_libtool_atom="sys-devel/libtool"
71if [[ -n ${WANT_LIBTOOL} ]] ; then
72 case ${WANT_LIBTOOL} in
73 none) _libtool_atom="" ;;
74 latest) ;;
75 *) die "Invalid WANT_LIBTOOL value '${WANT_LIBTOOL}'" ;;
76 esac
77 export WANT_LIBTOOL
78fi
79
80AUTOTOOLS_DEPEND="${_automake_atom} ${_autoconf_atom} ${_libtool_atom}"
81RDEPEND=""
82
83# @ECLASS-VARIABLE: AUTOTOOLS_AUTO_DEPEND
84# @DESCRIPTION:
85# Set to 'no' to disable automatically adding to DEPEND. This lets
86# ebuilds former conditional depends by using ${AUTOTOOLS_DEPEND} in
87# their own DEPEND string.
88: ${AUTOTOOLS_AUTO_DEPEND:=yes}
89if [[ ${AUTOTOOLS_AUTO_DEPEND} != "no" ]] ; then
90 DEPEND=${AUTOTOOLS_DEPEND}
91fi
92
93unset _automake_atom _autoconf_atom
94
95# @ECLASS-VARIABLE: AM_OPTS
96# @DEFAULT_UNSET
97# @DESCRIPTION:
98# Additional options to pass to automake during
99# eautoreconf call.
100
101# @ECLASS-VARIABLE: AT_NOELIBTOOLIZE
102# @DEFAULT_UNSET
103# @DESCRIPTION:
104# Don't run elibtoolize command if set to 'yes',
105# useful when elibtoolize needs to be ran with
106# particular options
107
108# @ECLASS-VARIABLE: AT_M4DIR
109# @DESCRIPTION:
21# AT_M4DIR - Additional director(y|ies) aclocal should search 110# Additional director(y|ies) aclocal should search
22# AM_OPTS - Additional options to pass to automake during 111: ${AT_M4DIR:=}
23# eautoreconf call.
24 112
25# Functions: 113# @ECLASS-VARIABLE: AT_SYS_M4DIR
26# 114# @INTERNAL
27# eautoreconf() - Should do a full autoreconf - normally what most people 115# @DESCRIPTION:
28# will be interested in. Also should handle additional 116# For system integrators, a list of additional aclocal search paths.
29# directories specified by AC_CONFIG_SUBDIRS. 117# This variable gets eval-ed, so you can use variables in the definition
30# eaclocal() - Runs aclocal. Respects AT_M4DIR for additional directories 118# that may not be valid until eautoreconf & friends are run.
31# to search for macro's. 119: ${AT_SYS_M4DIR:=}
32# _elibtoolize() - Runs libtoolize. Note the '_' prefix .. to not collide
33# with elibtoolize() from libtool.eclass
34# eautoconf - Runs autoconf.
35# eautoheader - Runs autoheader.
36# eautomake - Runs automake
37#
38 120
39# XXX: M4DIR should be depreciated 121# @FUNCTION: eautoreconf
40AT_M4DIR=${AT_M4DIR:-${M4DIR}} 122# @DESCRIPTION:
41AT_GNUCONF_UPDATE="no"
42
43
44# This function mimes the behavior of autoreconf, but uses the different 123# This function mimes the behavior of autoreconf, but uses the different
45# eauto* functions to run the tools. It doesn't accept parameters, but 124# eauto* functions to run the tools. It doesn't accept parameters, but
46# the directory with include files can be specified with AT_M4DIR variable. 125# the directory with include files can be specified with AT_M4DIR variable.
126#
127# Should do a full autoreconf - normally what most people will be interested in.
128# Also should handle additional directories specified by AC_CONFIG_SUBDIRS.
47eautoreconf() { 129eautoreconf() {
48 local pwd=$(pwd) x auxdir 130 local x auxdir g
49 131
132 if [[ -z ${AT_NO_RECURSIVE} ]]; then
50 # Take care of subdirs 133 # Take care of subdirs
51 for x in $(autotools_get_subdirs); do 134 for x in $(autotools_get_subdirs); do
52 if [[ -d ${x} ]] ; then 135 if [[ -d ${x} ]] ; then
53 cd "${x}" 136 pushd "${x}" >/dev/null
54 AT_NOELIBTOOLIZE="yes" eautoreconf 137 AT_NOELIBTOOLIZE="yes" eautoreconf
55 cd "${pwd}" 138 popd >/dev/null
56 fi 139 fi
57 done 140 done
141 fi
58 142
59 auxdir=$(autotools_get_auxdir) 143 auxdir=$(autotools_get_auxdir)
60 144
61 einfo "Running eautoreconf in '$(pwd)' ..." 145 einfo "Running eautoreconf in '${PWD}' ..."
62 [[ -n ${auxdir} ]] && mkdir -p ${auxdir} 146 [[ -n ${auxdir} ]] && mkdir -p ${auxdir}
63 eaclocal 147 eaclocal
148 [[ ${CHOST} == *-darwin* ]] && g=g
149 if ${LIBTOOLIZE:-${g}libtoolize} -n --install >& /dev/null ; then
150 _elibtoolize --copy --force --install
151 else
64 _elibtoolize --copy --force 152 _elibtoolize --copy --force
153 fi
65 eautoconf 154 eautoconf
66 eautoheader 155 eautoheader
67 FROM_EAUTORECONF="yes" eautomake ${AM_OPTS} 156 FROM_EAUTORECONF="yes" eautomake ${AM_OPTS}
68 157
69 [[ ${AT_NOELIBTOOLIZE} == "yes" ]] && return 0 158 [[ ${AT_NOELIBTOOLIZE} == "yes" ]] && return 0
70 159
71 # Call it here to prevent failures due to elibtoolize called _before_ 160 # Call it here to prevent failures due to elibtoolize called _before_
72 # eautoreconf. 161 # eautoreconf. We set $S because elibtoolize runs on that #265319
73 elibtoolize 162 S=${PWD} elibtoolize --force
74 163
75 return 0 164 return 0
76} 165}
77 166
167# @FUNCTION: eaclocal_amflags
168# @DESCRIPTION:
169# Extract the ACLOCAL_AMFLAGS value from the Makefile.am and try to handle
170# (most) of the crazy crap that people throw at us.
171eaclocal_amflags() {
172 local aclocal_opts amflags_file
173
174 for amflags_file in GNUmakefile.am Makefile.am GNUmakefile.in Makefile.in ; do
175 [[ -e ${amflags_file} ]] || continue
176 # setup the env in case the pkg does something crazy
177 # in their ACLOCAL_AMFLAGS. like run a shell script
178 # which turns around and runs autotools. #365401
179 # or split across multiple lines. #383525
180 autotools_env_setup
181 aclocal_opts=$(sed -n \
182 "/^ACLOCAL_AMFLAGS[[:space:]]*=/{ \
183 # match the first line
184 s:[^=]*=::p; \
185 # then gobble up all escaped lines
186 : nextline /\\\\$/{ n; p; b nextline; } \
187 }" ${amflags_file})
188 eval aclocal_opts=\""${aclocal_opts}"\"
189 break
190 done
191
192 echo ${aclocal_opts}
193}
194
195# @FUNCTION: eaclocal
196# @DESCRIPTION:
78# These functions runs the autotools using autotools_run_tool with the 197# These functions runs the autotools using autotools_run_tool with the
79# specified parametes. The name of the tool run is the same of the function 198# specified parametes. The name of the tool run is the same of the function
80# without e prefix. 199# without e prefix.
81# They also force installing the support files for safety. 200# They also force installing the support files for safety.
201# Respects AT_M4DIR for additional directories to search for macro's.
82eaclocal() { 202eaclocal() {
83 local aclocal_opts
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 *)
92 [[ ! -d ${x} ]] && ewarn "eaclocal: '${x}' does not exist"
93 aclocal_opts="${aclocal_opts} -I ${x}"
94 ;;
95 esac
96 done
97 fi
98
99 [[ ! -f aclocal.m4 || -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \ 203 [[ ! -f aclocal.m4 || -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \
100 autotools_run_tool aclocal "$@" ${aclocal_opts} 204 autotools_run_tool --at-m4flags aclocal "$@" $(eaclocal_amflags)
101} 205}
102 206
207# @FUNCTION: _elibtoolize
208# @DESCRIPTION:
209# Runs libtoolize. Note the '_' prefix .. to not collide with elibtoolize() from
210# libtool.eclass.
103_elibtoolize() { 211_elibtoolize() {
104 local opts 212 local opts g=
105 local lttest
106 213
107 # Check if we should run libtoolize (AM_PROG_LIBTOOL is an older macro, 214 # Check if we should run libtoolize (AM_PROG_LIBTOOL is an older macro,
108 # check for both it and the current AC_PROG_LIBTOOL) 215 # check for both it and the current AC_PROG_LIBTOOL)
109 lttest="$(autotools_check_macro "AC_PROG_LIBTOOL")$(autotools_check_macro "AM_PROG_LIBTOOL")" 216 [[ -n $(autotools_check_macro AC_PROG_LIBTOOL AM_PROG_LIBTOOL LT_INIT) ]] || return 0
110 [[ -n $lttest ]] || return 0
111 217
112 [[ -f Makefile.am ]] && opts="--automake" 218 [[ -f GNUmakefile.am || -f Makefile.am ]] && opts="--automake"
113 219
114 [[ "${USERLAND}" == "Darwin" ]] && LIBTOOLIZE="glibtoolize" 220 [[ ${CHOST} == *-darwin* ]] && g=g
115 autotools_run_tool ${LIBTOOLIZE:-libtoolize} "$@" ${opts} 221 autotools_run_tool ${LIBTOOLIZE:-${g}libtoolize} "$@" ${opts}
116 222
117 # Need to rerun aclocal 223 # Need to rerun aclocal
118 eaclocal 224 eaclocal
119} 225}
120 226
227# @FUNCTION: eautoheader
228# @DESCRIPTION:
229# Runs autoheader.
121eautoheader() { 230eautoheader() {
122 # Check if we should run autoheader 231 # Check if we should run autoheader
123 [[ -n $(autotools_check_macro "AC_CONFIG_HEADERS") ]] || return 0 232 [[ -n $(autotools_check_macro "AC_CONFIG_HEADERS") ]] || return 0
124 autotools_run_tool autoheader "$@" 233 autotools_run_tool --at-no-fail --at-m4flags autoheader "$@"
125} 234}
126 235
236# @FUNCTION: eautoconf
237# @DESCRIPTION:
238# Runs autoconf.
127eautoconf() { 239eautoconf() {
128 if [[ ! -f configure.ac && ! -f configure.in ]] ; then 240 if [[ ! -f configure.ac && ! -f configure.in ]] ; then
129 echo 241 echo
130 eerror "No configure.{ac,in} present in '$(pwd | sed -e 's:.*/::')'!" 242 eerror "No configure.{ac,in} present in '${PWD}'!"
131 echo 243 echo
132 die "No configure.{ac,in} present!" 244 die "No configure.{ac,in} present!"
133 fi 245 fi
134 246
135 autotools_run_tool autoconf "$@" 247 autotools_run_tool --at-m4flags autoconf "$@"
136} 248}
137 249
250# @FUNCTION: eautomake
251# @DESCRIPTION:
252# Runs automake.
138eautomake() { 253eautomake() {
139 local extra_opts 254 local extra_opts
255 local makefile_name
140 256
257 # Run automake if:
258 # - a Makefile.am type file exists
259 # - a Makefile.in type file exists and the configure
260 # script is using the AM_INIT_AUTOMAKE directive
261 for makefile_name in {GNUmakefile,{M,m}akefile}.{am,in} "" ; do
262 [[ -f ${makefile_name} ]] && break
263 done
141 [[ -f Makefile.am ]] || return 0 264 [[ -z ${makefile_name} ]] && return 0
142 265
266 if [[ ${makefile_name} == *.in ]] ; then
267 if ! grep -qs AM_INIT_AUTOMAKE configure.?? ; then
268 return 0
269 fi
270
143 if [[ -z ${FROM_EAUTORECONF} && -f Makefile.in ]]; then 271 elif [[ -z ${FROM_EAUTORECONF} && -f ${makefile_name%.am}.in ]]; then
144 local used_automake 272 local used_automake
145 local installed_automake 273 local installed_automake
146 274
147 installed_automake=$(automake --version | head -n 1 | \ 275 installed_automake=$(WANT_AUTOMAKE= automake --version | head -n 1 | \
148 sed -e 's:.*(GNU automake) ::') 276 sed -e 's:.*(GNU automake) ::')
149 used_automake=$(head -n 1 < Makefile.in | \ 277 used_automake=$(head -n 1 < ${makefile_name%.am}.in | \
150 sed -e 's:.*by automake \(.*\) from .*:\1:') 278 sed -e 's:.*by automake \(.*\) from .*:\1:')
151 279
152 if [[ ${installed_automake} != ${used_automake} ]]; then 280 if [[ ${installed_automake} != ${used_automake} ]]; then
153 einfo "Automake used for the package (${used_automake}) differs from" 281 einfo "Automake used for the package (${used_automake}) differs from"
154 einfo "the installed version (${installed_automake})." 282 einfo "the installed version (${installed_automake})."
155 eautoreconf 283 eautoreconf
156 return 0 284 return 0
157 fi 285 fi
158 fi 286 fi
159 287
160 [[ -f INSTALL && -f AUTHORS && -f ChangeLog && -f NEWS ]] \ 288 [[ -f INSTALL && -f AUTHORS && -f ChangeLog && -f NEWS && -f README ]] \
161 || extra_opts="${extra_opts} --foreign" 289 || extra_opts="${extra_opts} --foreign"
162 290
163 # --force-missing seems not to be recognized by some flavours of automake 291 # --force-missing seems not to be recognized by some flavours of automake
164 autotools_run_tool automake --add-missing --copy ${extra_opts} "$@" 292 autotools_run_tool automake --add-missing --copy ${extra_opts} "$@"
165} 293}
166 294
167 295# @FUNCTION: eautopoint
296# @DESCRIPTION:
297# Runs autopoint (from the gettext package).
298eautopoint() {
299 autotools_run_tool autopoint "$@"
300}
168 301
169# Internal function to run an autotools' tool 302# Internal function to run an autotools' tool
303autotools_env_setup() {
304 # We do the “latest” → version switch here because it solves
305 # possible order problems, see bug #270010 as an example.
306 if [[ ${WANT_AUTOMAKE} == "latest" ]]; then
307 local pv
308 for pv in ${_LATEST_AUTOMAKE} ; do
309 # has_version respects ROOT, but in this case, we don't want it to,
310 # thus "ROOT=/" prefix:
311 ROOT=/ has_version "=sys-devel/automake-${pv}*" && export WANT_AUTOMAKE="$pv"
312 done
313 [[ ${WANT_AUTOMAKE} == "latest" ]] && \
314 die "Cannot find the latest automake! Tried ${_LATEST_AUTOMAKE}"
315 fi
316 [[ ${WANT_AUTOCONF} == "latest" ]] && export WANT_AUTOCONF=2.5
317}
170autotools_run_tool() { 318autotools_run_tool() {
319 # Process our own internal flags first
320 local autofail=true m4flags=false
321 while [[ -n $1 ]] ; do
322 case $1 in
323 --at-no-fail) autofail=false;;
324 --at-m4flags) m4flags=true;;
325 # whatever is left goes to the actual tool
326 *) break;;
327 esac
328 shift
329 done
330
331 if [[ ${EBUILD_PHASE} != "unpack" && ${EBUILD_PHASE} != "prepare" ]]; then
332 ewarn "QA Warning: running $1 in ${EBUILD_PHASE} phase"
333 fi
334
335 autotools_env_setup
336
171 local STDERR_TARGET="${T}/$$.out" 337 local STDERR_TARGET="${T}/$1.out"
172 local PATCH_TARGET="${T}/$$.patch" 338 # most of the time, there will only be one run, but if there are
339 # more, make sure we get unique log filenames
340 if [[ -e ${STDERR_TARGET} ]] ; then
173 local ris 341 local i=1
342 while :; do
343 STDERR_TARGET="${T}/$1-${i}.out"
344 [[ -e ${STDERR_TARGET} ]] || break
345 : $(( i++ ))
346 done
347 fi
174 348
175 echo "***** $1 *****" > ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/} 349 if ${m4flags} ; then
176 echo >> ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/} 350 set -- "${1}" $(autotools_m4dir_include) "${@:2}" $(autotools_m4sysdir_include)
351 fi
352
353 printf "***** $1 *****\n***** PWD: ${PWD}\n***** $*\n\n" > "${STDERR_TARGET}"
177 354
178 ebegin "Running $@" 355 ebegin "Running $@"
179 $@ >> ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/} 2>&1 356 "$@" >> "${STDERR_TARGET}" 2>&1
180 ris=$? 357 if ! eend $? && ${autofail} ; then
181 eend ${ris}
182
183 if [[ ${ris} != 0 ]]; then
184 echo 358 echo
185 eerror "Failed Running $1 !" 359 eerror "Failed Running $1 !"
186 eerror 360 eerror
187 eerror "Include in your bugreport the contents of:" 361 eerror "Include in your bugreport the contents of:"
188 eerror 362 eerror
189 eerror " ${STDERR_TARGET%/*}/$1-${STDERR_TARGET##*/}" 363 eerror " ${STDERR_TARGET}"
190 echo 364 echo
191 die "Failed Running $1 !" 365 die "Failed Running $1 !"
192 fi 366 fi
193} 367}
194 368
195# Internal function to check for support 369# Internal function to check for support
196autotools_check_macro() { 370autotools_check_macro() {
197 [[ -f configure.ac || -f configure.in ]] && \ 371 [[ -f configure.ac || -f configure.in ]] || return 0
198 WANT_AUTOCONF="2.5" autoconf --trace=$1 2>/dev/null 372 local macro
373 for macro ; do
374 WANT_AUTOCONF="2.5" autoconf $(autotools_m4dir_include) --trace="${macro}" 2>/dev/null
375 done
199 return 0 376 return 0
200} 377}
201 378
379# Internal function to look for a macro and extract its value
380autotools_check_macro_val() {
381 local macro=$1 scan_out
382
383 autotools_check_macro "${macro}" | \
384 gawk -v macro="${macro}" \
385 '($0 !~ /^[[:space:]]*(#|dnl)/) {
386 if (match($0, macro ":(.*)$", res))
387 print res[1]
388 }' | uniq
389
390 return 0
391}
392
202# Internal function to get additional subdirs to configure 393# Internal function to get additional subdirs to configure
203autotools_get_subdirs() { 394autotools_get_subdirs() { autotools_check_macro_val AC_CONFIG_SUBDIRS ; }
204 local subdirs_scan_out 395autotools_get_auxdir() { autotools_check_macro_val AC_CONFIG_AUX_DIR ; }
205 396
206 subdirs_scan_out=$(autotools_check_macro "AC_CONFIG_SUBDIRS") 397_autotools_m4dir_include() {
207 [[ -n ${subdirs_scan_out} ]] || return 0 398 local x include_opts
208 399
209 echo "${subdirs_scan_out}" | gawk \ 400 for x in "$@" ; do
210 '($0 !~ /^[[:space:]]*(#|dnl)/) { 401 case ${x} in
211 if (match($0, /AC_CONFIG_SUBDIRS:(.*)$/, res)) 402 # We handle it below
212 print res[1] 403 -I) ;;
213 }' | uniq 404 *)
405 [[ ! -d ${x} ]] && ewarn "autotools.eclass: '${x}' does not exist"
406 include_opts+=" -I ${x}"
407 ;;
408 esac
409 done
214 410
215 return 0 411 echo ${include_opts}
216} 412}
413autotools_m4dir_include() { _autotools_m4dir_include ${AT_M4DIR} ; }
414autotools_m4sysdir_include() { _autotools_m4dir_include $(eval echo ${AT_SYS_M4DIR}) ; }
217 415
218autotools_get_auxdir() { 416fi
219 local auxdir_scan_out
220
221 auxdir_scan_out=$(autotools_check_macro "AC_CONFIG_AUX_DIR")
222 [[ -n ${auxdir_scan_out} ]] || return 0
223
224 echo ${auxdir_scan_out} | gawk \
225 '($0 !~ /^[[:space:]]*(#|dnl)/) {
226 if (match($0, /AC_CONFIG_AUX_DIR:(.*)$/, res))
227 print res[1]
228 }' | uniq
229
230 return 0
231}
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