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1# Copyright 1999-2011 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 1.106 2011/08/22 19:39:52 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/autotools.eclass,v 1.114 2011/12/14 18:33:59 vapier Exp $
4 4
5# @ECLASS: autotools.eclass 5# @ECLASS: autotools.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# base-system@gentoo.org 7# base-system@gentoo.org
8# @BLURB: Regenerates auto* build scripts 8# @BLURB: Regenerates auto* build scripts
9# @DESCRIPTION: 9# @DESCRIPTION:
10# This eclass is for safely handling autotooled software packages that need to 10# This eclass is for safely handling autotooled software packages that need to
11# regenerate their build scripts. All functions will abort in case of errors. 11# regenerate their build scripts. All functions will abort in case of errors.
12# 12
13# 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"
14 18
15inherit eutils libtool 19inherit eutils libtool
16 20
17# @ECLASS-VARIABLE: WANT_AUTOCONF 21# @ECLASS-VARIABLE: WANT_AUTOCONF
18# @DESCRIPTION: 22# @DESCRIPTION:
99# @DESCRIPTION: 103# @DESCRIPTION:
100# Don't run elibtoolize command if set to 'yes', 104# Don't run elibtoolize command if set to 'yes',
101# useful when elibtoolize needs to be ran with 105# useful when elibtoolize needs to be ran with
102# particular options 106# particular options
103 107
104# XXX: M4DIR should be deprecated
105# @ECLASS-VARIABLE: AT_M4DIR 108# @ECLASS-VARIABLE: AT_M4DIR
106# @DESCRIPTION: 109# @DESCRIPTION:
107# Additional director(y|ies) aclocal should search 110# Additional director(y|ies) aclocal should search
108: ${AT_M4DIR:=${M4DIR}} 111: ${AT_M4DIR:=}
112
113# @ECLASS-VARIABLE: AT_SYS_M4DIR
114# @INTERNAL
115# @DESCRIPTION:
116# For system integrators, a list of additional aclocal search paths.
117# This variable gets eval-ed, so you can use variables in the definition
118# that may not be valid until eautoreconf & friends are run.
119: ${AT_SYS_M4DIR:=}
109 120
110# @FUNCTION: eautoreconf 121# @FUNCTION: eautoreconf
111# @DESCRIPTION: 122# @DESCRIPTION:
112# This function mimes the behavior of autoreconf, but uses the different 123# This function mimes the behavior of autoreconf, but uses the different
113# 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
146 157
147 [[ ${AT_NOELIBTOOLIZE} == "yes" ]] && return 0 158 [[ ${AT_NOELIBTOOLIZE} == "yes" ]] && return 0
148 159
149 # Call it here to prevent failures due to elibtoolize called _before_ 160 # Call it here to prevent failures due to elibtoolize called _before_
150 # eautoreconf. We set $S because elibtoolize runs on that #265319 161 # eautoreconf. We set $S because elibtoolize runs on that #265319
151 S=${PWD} elibtoolize 162 S=${PWD} elibtoolize --force
152 163
153 return 0 164 return 0
165}
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}
154} 193}
155 194
156# @FUNCTION: eaclocal 195# @FUNCTION: eaclocal
157# @DESCRIPTION: 196# @DESCRIPTION:
158# These functions runs the autotools using autotools_run_tool with the 197# These functions runs the autotools using autotools_run_tool with the
159# 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
160# without e prefix. 199# without e prefix.
161# They also force installing the support files for safety. 200# They also force installing the support files for safety.
162# Respects AT_M4DIR for additional directories to search for macro's. 201# Respects AT_M4DIR for additional directories to search for macro's.
163eaclocal() { 202eaclocal() {
164 local aclocal_opts
165
166 local amflags_file
167 for amflags_file in GNUmakefile.am Makefile.am GNUmakefile.in Makefile.in ; do
168 [[ -e ${amflags_file} ]] || continue
169 # setup the env in case the pkg does something crazy
170 # in their ACLOCAL_AMFLAGS. like run a shell script
171 # which turns around and runs autotools #365401
172 autotools_env_setup
173 aclocal_opts=$(sed -n '/^ACLOCAL_AMFLAGS[[:space:]]*=/s:[^=]*=::p' ${amflags_file})
174 eval aclocal_opts=\"${aclocal_opts}\"
175 break
176 done
177
178 [[ ! -f aclocal.m4 || -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \ 203 [[ ! -f aclocal.m4 || -n $(grep -e 'generated.*by aclocal' aclocal.m4) ]] && \
179 autotools_run_tool aclocal $(autotools_m4dir_include) "$@" ${aclocal_opts} 204 autotools_run_tool aclocal $(autotools_m4dir_include) "$@" $(eaclocal_amflags)
180} 205}
181 206
182# @FUNCTION: _elibtoolize 207# @FUNCTION: _elibtoolize
183# @DESCRIPTION: 208# @DESCRIPTION:
184# Runs libtoolize. Note the '_' prefix .. to not collide with elibtoolize() from 209# Runs libtoolize. Note the '_' prefix .. to not collide with elibtoolize() from
258 eautoreconf 283 eautoreconf
259 return 0 284 return 0
260 fi 285 fi
261 fi 286 fi
262 287
263 [[ -f INSTALL && -f AUTHORS && -f ChangeLog && -f NEWS ]] \ 288 [[ -f INSTALL && -f AUTHORS && -f ChangeLog && -f NEWS && -f README ]] \
264 || extra_opts="${extra_opts} --foreign" 289 || extra_opts="${extra_opts} --foreign"
265 290
266 # --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
267 autotools_run_tool automake --add-missing --copy ${extra_opts} "$@" 292 autotools_run_tool automake --add-missing --copy ${extra_opts} "$@"
268} 293}
335 WANT_AUTOCONF="2.5" autoconf $(autotools_m4dir_include) --trace="${macro}" 2>/dev/null 360 WANT_AUTOCONF="2.5" autoconf $(autotools_m4dir_include) --trace="${macro}" 2>/dev/null
336 done 361 done
337 return 0 362 return 0
338} 363}
339 364
365# Internal function to look for a macro and extract its value
366autotools_check_macro_val() {
367 local macro=$1 scan_out
368
369 autotools_check_macro "${macro}" | \
370 gawk -v macro="${macro}" \
371 '($0 !~ /^[[:space:]]*(#|dnl)/) {
372 if (match($0, macro ":(.*)$", res))
373 print res[1]
374 }' | uniq
375
376 return 0
377}
378
340# Internal function to get additional subdirs to configure 379# Internal function to get additional subdirs to configure
341autotools_get_subdirs() { 380autotools_get_subdirs() { autotools_check_macro_val AC_CONFIG_SUBDIRS ; }
342 local subdirs_scan_out 381autotools_get_auxdir() { autotools_check_macro_val AC_CONFIG_AUX_DIR ; }
343
344 subdirs_scan_out=$(autotools_check_macro "AC_CONFIG_SUBDIRS")
345 [[ -n ${subdirs_scan_out} ]] || return 0
346
347 echo "${subdirs_scan_out}" | gawk \
348 '($0 !~ /^[[:space:]]*(#|dnl)/) {
349 if (match($0, /AC_CONFIG_SUBDIRS:(.*)$/, res))
350 print res[1]
351 }' | uniq
352
353 return 0
354}
355
356autotools_get_auxdir() {
357 local auxdir_scan_out
358
359 auxdir_scan_out=$(autotools_check_macro "AC_CONFIG_AUX_DIR")
360 [[ -n ${auxdir_scan_out} ]] || return 0
361
362 echo ${auxdir_scan_out} | gawk \
363 '($0 !~ /^[[:space:]]*(#|dnl)/) {
364 if (match($0, /AC_CONFIG_AUX_DIR:(.*)$/, res))
365 print res[1]
366 }' | uniq
367
368 return 0
369}
370 382
371autotools_m4dir_include() { 383autotools_m4dir_include() {
372 [[ -n ${AT_M4DIR} ]] || return
373
374 local include_opts= 384 local x include_opts
375 385
376 for x in ${AT_M4DIR} ; do 386 for x in ${AT_M4DIR} $(eval echo ${AT_SYS_M4DIR}) ; do
377 case "${x}" in 387 case "${x}" in
378 "-I") 388 "-I")
379 # We handle it below 389 # We handle it below
380 ;; 390 ;;
381 *) 391 *)
382 [[ ! -d ${x} ]] && ewarn "autotools.eclass: '${x}' does not exist" 392 [[ ! -d ${x} ]] && ewarn "autotools.eclass: '${x}' does not exist"
383 include_opts="${include_opts} -I ${x}" 393 include_opts+=" -I ${x}"
384 ;; 394 ;;
385 esac 395 esac
386 done 396 done
387 397
388 echo $include_opts 398 echo ${include_opts}
389} 399}
400
401fi

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