1 # This file is part of Autoconf. -*- Autoconf -*-
2 # Parameterized macros.
3 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
4 # 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 # As a special exception, the Free Software Foundation gives unlimited
20 # permission to copy, distribute and modify the configure scripts that
21 # are the output of Autoconf. You need not follow the terms of the GNU
22 # General Public License when using or distributing such scripts, even
23 # though portions of the text of Autoconf appear in them. The GNU
24 # General Public License (GPL) does govern all other use of the material
25 # that constitutes the Autoconf program.
27 # Certain portions of the Autoconf source text are designed to be copied
28 # (in certain cases, depending on the input) into the output of
29 # Autoconf. We call these the "data" portions. The rest of the Autoconf
30 # source text consists of comments plus executable code that decides which
31 # of the data portions to output in any given case. We call these
32 # comments and executable code the "non-data" portions. Autoconf never
33 # copies any of the non-data portions into its output.
35 # This special exception to the GPL applies to versions of Autoconf
36 # released by the Free Software Foundation. When you make and
37 # distribute a modified version of Autoconf, you may extend this special
38 # exception to the GPL to apply to your modified version as well, *unless*
39 # your modified version has the potential to copy into its output some
40 # of the text that was the non-data portion of the version that you started
41 # with. (In other words, unless your change moves or copies text from
42 # the non-data portions to the data portions.) If your modification has
43 # such potential, you must delete any notice of this special exception
44 # to the GPL from your modified version.
46 # Written by David MacKenzie, with help from
47 # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
48 # Roland McGrath, Noah Friedman, david d zuhn, and many others.
51 ## ---------------- ##
53 ## ---------------- ##
56 # We heavily use m4's diversions both for the initializations and for
57 # required macros (see AC_REQUIRE), because in both cases we have to
58 # issue high in `configure' something which is discovered late.
60 # KILL is only used to suppress output.
62 # The layers of `configure'. We let m4 undivert them by itself, when
63 # it reaches the end of `configure.ac'.
70 # Purpose of the script.
74 # Initialization of bottom layers.
77 # early initializations (defaults)
79 # initialization code, option handling loop.
82 # Handling `configure --help'.
84 # Help msg for AC_CANONICAL_*
86 # Help msg from AC_ARG_ENABLE.
88 # Help msg from AC_ARG_WITH.
90 # Help msg from AC_ARG_VAR.
92 # A small paragraph on the use of the variables.
94 # Tail of the handling of --help.
97 # Head of the handling of --version.
99 # FSF copyright notice for --version.
101 # User copyright notice for --version.
103 # Tail of the handling of --version.
106 # Tail of initialization code.
109 # the tests and output code
113 # _m4_divert(DIVERSION-NAME)
114 # --------------------------
115 # Convert a diversion name into its number. Otherwise, return
116 # DIVERSION-NAME which is supposed to be an actual diversion number.
117 # Of course it would be nicer to use m4_case here, instead of zillions
118 # of little macros, but it then takes twice longer to run `autoconf'!
128 # 3. HEADER-COPYRIGHT
131 m4_define([_m4_divert(DEFAULTS)], 10)
132 m4_define([_m4_divert(PARSE_ARGS)], 20)
134 m4_define([_m4_divert(HELP_BEGIN)], 100)
135 m4_define([_m4_divert(HELP_CANON)], 101)
136 m4_define([_m4_divert(HELP_ENABLE)], 102)
137 m4_define([_m4_divert(HELP_WITH)], 103)
138 m4_define([_m4_divert(HELP_VAR)], 104)
139 m4_define([_m4_divert(HELP_VAR_END)], 105)
140 m4_define([_m4_divert(HELP_END)], 106)
142 m4_define([_m4_divert(VERSION_BEGIN)], 200)
143 m4_define([_m4_divert(VERSION_FSF)], 201)
144 m4_define([_m4_divert(VERSION_USER)], 202)
145 m4_define([_m4_divert(VERSION_END)], 203)
147 m4_define([_m4_divert(INIT_PREPARE)], 300)
151 # AC_DIVERT_PUSH(DIVERSION-NAME)
153 # ------------------------------
154 m4_copy([m4_divert_push],[AC_DIVERT_PUSH])
155 m4_copy([m4_divert_pop], [AC_DIVERT_POP])
159 ## ------------------------------------ ##
160 ## Defining/requiring Autoconf macros. ##
161 ## ------------------------------------ ##
164 # AC_DEFUN(NAME, EXPANSION)
165 # AC_DEFUN_ONCE(NAME, EXPANSION)
166 # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
168 # AC_PROVIDE(MACRO-NAME)
169 # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
170 # -----------------------------------------------------------
171 m4_copy([m4_defun], [AC_DEFUN])
172 m4_copy([m4_defun_once], [AC_DEFUN_ONCE])
173 m4_copy([m4_before], [AC_BEFORE])
174 m4_copy([m4_require], [AC_REQUIRE])
175 m4_copy([m4_provide], [AC_PROVIDE])
176 m4_copy([m4_provide_if], [AC_PROVIDE_IFELSE])
179 # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION])
180 # ------------------------------------------
181 m4_define([AC_OBSOLETE],
182 [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])])
186 ## ----------------------------- ##
187 ## Implementing Autoconf loops. ##
188 ## ----------------------------- ##
191 # AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION)
192 # ------------------------------------------
193 AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]])
194 AC_DEFUN([AC_FOREACH], [m4_foreach_w($@)dnl
195 AC_DIAGNOSE([obsolete], [The macro `AC_FOREACH' is obsolete.
196 You should run autoupdate.])])
200 ## ----------------------------------- ##
201 ## Helping macros to display strings. ##
202 ## ----------------------------------- ##
205 # AU::AC_HELP_STRING(LHS, RHS, [COLUMN])
206 # --------------------------------------
207 AU_ALIAS([AC_HELP_STRING], [AS_HELP_STRING])
211 ## ---------------------------------------------- ##
212 ## Information on the package being Autoconf'ed. ##
213 ## ---------------------------------------------- ##
216 # It is suggested that the macros in this section appear before
217 # AC_INIT in `configure.ac'. Nevertheless, this is just stylistic,
218 # and from the implementation point of view, AC_INIT *must* be expanded
219 # beforehand: it puts data in diversions which must appear before the
220 # data provided by the macros of this section.
222 # The solution is to require AC_INIT in each of these macros. AC_INIT
223 # has the needed magic so that it can't be expanded twice.
227 # _AC_INIT_PACKAGE(PACKAGE-NAME, VERSION, BUG-REPORT, [TARNAME])
228 # --------------------------------------------------------------
229 m4_define([_AC_INIT_PACKAGE],
230 [AS_LITERAL_IF([$1], [], [m4_warn([syntax], [AC_INIT: not a literal: $1])])
231 AS_LITERAL_IF([$2], [], [m4_warn([syntax], [AC_INIT: not a literal: $2])])
232 AS_LITERAL_IF([$3], [], [m4_warn([syntax], [AC_INIT: not a literal: $3])])
233 m4_ifndef([AC_PACKAGE_NAME],
234 [m4_define([AC_PACKAGE_NAME], [$1])])
235 m4_ifndef([AC_PACKAGE_TARNAME],
236 [m4_define([AC_PACKAGE_TARNAME],
238 [m4_bpatsubst(m4_tolower(m4_bpatsubst([[[$1]]],
240 [[^_abcdefghijklmnopqrstuvwxyz0123456789]],
242 m4_ifndef([AC_PACKAGE_VERSION],
243 [m4_define([AC_PACKAGE_VERSION], [$2])])
244 m4_ifndef([AC_PACKAGE_STRING],
245 [m4_define([AC_PACKAGE_STRING], [$1 $2])])
246 m4_ifndef([AC_PACKAGE_BUGREPORT],
247 [m4_define([AC_PACKAGE_BUGREPORT], [$3])])
251 # AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER])
252 # ------------------------------------------------------
253 # Emit TEXT, a copyright notice, in the top of `configure' and in
254 # --version output. Macros in TEXT are evaluated once.
255 m4_define([AC_COPYRIGHT],
256 [AS_COPYRIGHT([$1])[]dnl
257 m4_divert_text(m4_default([$2], [VERSION_USER]),
263 # AC_REVISION(REVISION-INFO)
264 # --------------------------
265 # The second quote in the translit is just to cope with font-lock-mode
266 # which sees the opening of a string.
267 m4_define([AC_REVISION],
268 [m4_divert_text([HEADER-REVISION],
269 [@%:@ From __file__ m4_translit([$1], [$""]).])dnl
275 ## ---------------------------------------- ##
276 ## Requirements over the Autoconf version. ##
277 ## ---------------------------------------- ##
280 # AU::AC_PREREQ(VERSION)
281 # ----------------------
282 # Update this `AC_PREREQ' statement to require the current version of
283 # Autoconf. But fail if ever this autoupdate is too old.
285 # Note that `m4_defn([m4_PACKAGE_VERSION])' below are expanded before
286 # calling `AU_DEFUN', i.e., it is hard coded. Otherwise it would be
287 # quite complex for autoupdate to import the value of
288 # `m4_PACKAGE_VERSION'. We could `AU_DEFUN' `m4_PACKAGE_VERSION', but
289 # this would replace all its occurrences with the current version of
290 # Autoconf, which is certainly not what the user intended.
291 AU_DEFUN([AC_PREREQ],
292 [m4_version_prereq([$1])[]dnl
293 [AC_PREREQ(]]m4_defn([m4_PACKAGE_VERSION])[[)]])
298 # Complain and exit if the Autoconf version is less than VERSION.
299 m4_copy([m4_version_prereq], [AC_PREREQ])
306 ## ---------------- ##
307 ## Initialization. ##
308 ## ---------------- ##
311 # All the following macros are used by AC_INIT. Ideally, they should
312 # be presented in the order in which they are output. Please, help us
313 # sorting it, or at least, don't augment the entropy.
318 m4_define([_AC_INIT_NOTICE],
319 [m4_divert_text([HEADER-COMMENT],
320 [@%:@ Guess values for system-dependent variables and create Makefiles.
321 @%:@ Generated by m4_PACKAGE_STRING[]dnl
322 m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
324 m4_ifset([AC_PACKAGE_BUGREPORT],
325 [m4_divert_text([HEADER-COMMENT],
327 @%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
333 # We dump to VERSION_FSF to make sure we are inserted before the
334 # user copyrights, and after the setup of the --version handling.
335 m4_define([_AC_INIT_COPYRIGHT],
337 [Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
338 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
339 This configure script is free software; the Free Software Foundation
340 gives unlimited permission to copy, distribute and modify it.],
347 # Set up the file descriptors used by `configure'.
348 # File descriptor usage:
349 # 0 standard input (/dev/null)
351 # 2 errors and warnings
352 # AS_MESSAGE_LOG_FD compiler messages saved in config.log
353 # AS_MESSAGE_FD checking for... messages and results
354 # AS_ORIGINAL_STDIN_FD original standard input (still open)
356 # stdin is /dev/null because checks that run programs may
357 # inadvertently run interactive ones, which would stop configuration
358 # until someone typed an EOF.
359 m4_define([AS_MESSAGE_FD], 6)
360 m4_define([AS_ORIGINAL_STDIN_FD], 7)
361 # That's how they used to be named.
362 AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD])
363 AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
368 # Values which defaults can be set from `configure.ac'.
369 # `/bin/machine' is used in `glibcbug'. The others are used in config.*
370 m4_define([_AC_INIT_DEFAULTS],
371 [m4_divert_push([DEFAULTS])dnl
373 exec AS_ORIGINAL_STDIN_FD<&0 </dev/null AS_MESSAGE_FD>&1
376 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
377 # so uname gets run too.
378 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
383 ac_default_prefix=/usr/local
385 ac_config_libobj_dir=.
391 AC_SUBST([SHELL], [${CONFIG_SHELL-/bin/sh}])dnl
392 AC_SUBST([PATH_SEPARATOR])dnl
394 # Identity of this package.
395 AC_SUBST([PACKAGE_NAME],
396 [m4_ifdef([AC_PACKAGE_NAME], ['AC_PACKAGE_NAME'])])dnl
397 AC_SUBST([PACKAGE_TARNAME],
398 [m4_ifdef([AC_PACKAGE_TARNAME], ['AC_PACKAGE_TARNAME'])])dnl
399 AC_SUBST([PACKAGE_VERSION],
400 [m4_ifdef([AC_PACKAGE_VERSION], ['AC_PACKAGE_VERSION'])])dnl
401 AC_SUBST([PACKAGE_STRING],
402 [m4_ifdef([AC_PACKAGE_STRING], ['AC_PACKAGE_STRING'])])dnl
403 AC_SUBST([PACKAGE_BUGREPORT],
404 [m4_ifdef([AC_PACKAGE_BUGREPORT], ['AC_PACKAGE_BUGREPORT'])])dnl
406 m4_divert_pop([DEFAULTS])dnl
407 m4_wrap([m4_divert_text([DEFAULTS],
408 [ac_subst_vars='m4_ifdef([_AC_SUBST_VARS], [m4_defn([_AC_SUBST_VARS])])'
409 ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'
411 enable_option_checking
412 m4_ifdef([_AC_USER_OPTS], [m4_defn([_AC_USER_OPTS])
414 m4_ifdef([_AC_PRECIOUS_VARS],
415 [_AC_ARG_VAR_STORE[]dnl
416 _AC_ARG_VAR_VALIDATE[]dnl
417 ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
418 m4_ifdef([_AC_LIST_SUBDIRS],
419 [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
421 ])# _AC_INIT_DEFAULTS
424 # AC_PREFIX_DEFAULT(PREFIX)
425 # -------------------------
426 AC_DEFUN([AC_PREFIX_DEFAULT],
427 [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])])
430 # AC_PREFIX_PROGRAM(PROGRAM)
431 # --------------------------
432 # Guess the value for the `prefix' variable by looking for
433 # the argument program along PATH and taking its parent.
434 # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
435 # set `prefix' to /usr/local/gnu.
436 # This comes too late to find a site file based on the prefix,
437 # and it might use a cached value for the path.
438 # No big loss, I think, since most configures don't use this macro anyway.
439 AC_DEFUN([AC_PREFIX_PROGRAM],
440 [if test "x$prefix" = xNONE; then
441 dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle.
442 _AS_ECHO_N([checking for prefix by ])
443 AC_PATH_PROG(ac_prefix_program, [$1])
444 if test -n "$ac_prefix_program"; then
445 prefix=`AS_DIRNAME(["$ac_prefix_program"])`
446 prefix=`AS_DIRNAME(["$prefix"])`
449 ])# AC_PREFIX_PROGRAM
452 # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
453 # ---------------------------------------------
454 # UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
455 # relative to the directory that configure is in, which we can look
456 # for to find out if srcdir is correct.
457 AC_DEFUN([AC_CONFIG_SRCDIR],
458 [m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
463 # Set ac_pwd, and sanity-check it and the source and installation directories.
465 # (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
467 AC_DEFUN([_AC_INIT_DIRCHECK],
468 [m4_divert_push([PARSE_ARGS])dnl
470 ac_pwd=`pwd` && test -n "$ac_pwd" &&
471 ac_ls_di=`ls -di .` &&
472 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
473 AC_MSG_ERROR([Working directory cannot be determined])
474 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
475 AC_MSG_ERROR([pwd does not report name of working directory])
477 m4_divert_pop([PARSE_ARGS])dnl
478 ])# _AC_INIT_DIRCHECK
482 # Compute `srcdir' based on `$ac_unique_file'.
484 # (We have to AC_DEFUN it, since we use AC_REQUIRE.)
486 AC_DEFUN([_AC_INIT_SRCDIR],
487 [AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
488 m4_divert_push([PARSE_ARGS])dnl
490 # Find the source files, if location was not specified.
491 if test -z "$srcdir"; then
492 ac_srcdir_defaulted=yes
493 # Try the directory containing this script, then the parent directory.
494 ac_confdir=`AS_DIRNAME(["$[0]"])`
496 if test ! -r "$srcdir/$ac_unique_file"; then
500 ac_srcdir_defaulted=no
502 if test ! -r "$srcdir/$ac_unique_file"; then
503 test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
504 AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
506 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
508 cd "$srcdir" && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
510 # When building in place, set srcdir=.
511 if test "$ac_abs_confdir" = "$ac_pwd"; then
514 # Remove unnecessary trailing slashes from srcdir.
515 # Double slashes in file names in object file debugging info
516 # mess up M-x gdb in Emacs.
518 */) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
520 m4_divert_pop([PARSE_ARGS])dnl
524 # _AC_INIT_PARSE_ARGS
525 # -------------------
526 m4_define([_AC_INIT_PARSE_ARGS],
527 [m4_divert_push([PARSE_ARGS])dnl
529 # Initialize some variables set by options.
531 ac_init_version=false
532 ac_unrecognized_opts=
534 # The variables have the same names as the options, with
535 # dashes changed to underlines.
537 AC_SUBST(exec_prefix, NONE)dnl
540 AC_SUBST(prefix, NONE)dnl
543 AC_SUBST(program_transform_name, [s,x,x,])dnl
551 # Installation directory options.
552 # These are left unexpanded so users can "make install exec_prefix=/foo"
553 # and all the variables that are supposed to be based on exec_prefix
554 # by default will actually change.
555 # Use braces instead of parens because sh, perl, etc. also accept them.
556 # (The list follows the same order as the GNU Coding Standards.)
557 AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
558 AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
559 AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
560 AC_SUBST([datarootdir], ['${prefix}/share'])dnl
561 AC_SUBST([datadir], ['${datarootdir}'])dnl
562 AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
563 AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
564 AC_SUBST([localstatedir], ['${prefix}/var'])dnl
565 AC_SUBST([includedir], ['${prefix}/include'])dnl
566 AC_SUBST([oldincludedir], ['/usr/include'])dnl
567 AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
568 ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
569 ['${datarootdir}/doc/${PACKAGE}'])])dnl
570 AC_SUBST([infodir], ['${datarootdir}/info'])dnl
571 AC_SUBST([htmldir], ['${docdir}'])dnl
572 AC_SUBST([dvidir], ['${docdir}'])dnl
573 AC_SUBST([pdfdir], ['${docdir}'])dnl
574 AC_SUBST([psdir], ['${docdir}'])dnl
575 AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
576 AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
577 AC_SUBST([mandir], ['${datarootdir}/man'])dnl
583 # If the previous option needs an argument, assign it.
584 if test -n "$ac_prev"; then
585 eval $ac_prev=\$ac_option
591 *=*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
595 # Accept the important Cygnus configure options, so we can diagnose typos.
597 case $ac_dashdash$ac_option in
601 -bindir | --bindir | --bindi | --bind | --bin | --bi)
603 -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
606 -build | --build | --buil | --bui | --bu)
607 ac_prev=build_alias ;;
608 -build=* | --build=* | --buil=* | --bui=* | --bu=*)
609 build_alias=$ac_optarg ;;
611 -cache-file | --cache-file | --cache-fil | --cache-fi \
612 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
613 ac_prev=cache_file ;;
614 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
615 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
616 cache_file=$ac_optarg ;;
619 cache_file=config.cache ;;
621 -datadir | --datadir | --datadi | --datad)
623 -datadir=* | --datadir=* | --datadi=* | --datad=*)
624 datadir=$ac_optarg ;;
626 -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
627 | --dataroo | --dataro | --datar)
628 ac_prev=datarootdir ;;
629 -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
630 | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
631 datarootdir=$ac_optarg ;;
633 _AC_INIT_PARSE_ENABLE([disable])
635 -docdir | --docdir | --docdi | --doc | --do)
637 -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
640 -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
642 -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
645 _AC_INIT_PARSE_ENABLE([enable])
647 -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
648 | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
649 | --exec | --exe | --ex)
650 ac_prev=exec_prefix ;;
651 -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
652 | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
653 | --exec=* | --exe=* | --ex=*)
654 exec_prefix=$ac_optarg ;;
656 -gas | --gas | --ga | --g)
657 # Obsolete; use --with-gas.
660 -help | --help | --hel | --he | -h)
662 -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
663 ac_init_help=recursive ;;
664 -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
665 ac_init_help=short ;;
667 -host | --host | --hos | --ho)
668 ac_prev=host_alias ;;
669 -host=* | --host=* | --hos=* | --ho=*)
670 host_alias=$ac_optarg ;;
672 -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
674 -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
676 htmldir=$ac_optarg ;;
678 -includedir | --includedir | --includedi | --included | --include \
679 | --includ | --inclu | --incl | --inc)
680 ac_prev=includedir ;;
681 -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
682 | --includ=* | --inclu=* | --incl=* | --inc=*)
683 includedir=$ac_optarg ;;
685 -infodir | --infodir | --infodi | --infod | --info | --inf)
687 -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
688 infodir=$ac_optarg ;;
690 -libdir | --libdir | --libdi | --libd)
692 -libdir=* | --libdir=* | --libdi=* | --libd=*)
695 -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
696 | --libexe | --libex | --libe)
697 ac_prev=libexecdir ;;
698 -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
699 | --libexe=* | --libex=* | --libe=*)
700 libexecdir=$ac_optarg ;;
702 -localedir | --localedir | --localedi | --localed | --locale)
704 -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
705 localedir=$ac_optarg ;;
707 -localstatedir | --localstatedir | --localstatedi | --localstated \
708 | --localstate | --localstat | --localsta | --localst | --locals)
709 ac_prev=localstatedir ;;
710 -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
711 | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
712 localstatedir=$ac_optarg ;;
714 -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
716 -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
720 # Obsolete; use --without-fp.
723 -no-create | --no-create | --no-creat | --no-crea | --no-cre \
724 | --no-cr | --no-c | -n)
727 -no-recursion | --no-recursion | --no-recursio | --no-recursi \
728 | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
731 -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
732 | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
733 | --oldin | --oldi | --old | --ol | --o)
734 ac_prev=oldincludedir ;;
735 -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
736 | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
737 | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
738 oldincludedir=$ac_optarg ;;
740 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
742 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
745 -program-prefix | --program-prefix | --program-prefi | --program-pref \
746 | --program-pre | --program-pr | --program-p)
747 ac_prev=program_prefix ;;
748 -program-prefix=* | --program-prefix=* | --program-prefi=* \
749 | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
750 program_prefix=$ac_optarg ;;
752 -program-suffix | --program-suffix | --program-suffi | --program-suff \
753 | --program-suf | --program-su | --program-s)
754 ac_prev=program_suffix ;;
755 -program-suffix=* | --program-suffix=* | --program-suffi=* \
756 | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
757 program_suffix=$ac_optarg ;;
759 -program-transform-name | --program-transform-name \
760 | --program-transform-nam | --program-transform-na \
761 | --program-transform-n | --program-transform- \
762 | --program-transform | --program-transfor \
763 | --program-transfo | --program-transf \
764 | --program-trans | --program-tran \
765 | --progr-tra | --program-tr | --program-t)
766 ac_prev=program_transform_name ;;
767 -program-transform-name=* | --program-transform-name=* \
768 | --program-transform-nam=* | --program-transform-na=* \
769 | --program-transform-n=* | --program-transform-=* \
770 | --program-transform=* | --program-transfor=* \
771 | --program-transfo=* | --program-transf=* \
772 | --program-trans=* | --program-tran=* \
773 | --progr-tra=* | --program-tr=* | --program-t=*)
774 program_transform_name=$ac_optarg ;;
776 -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
778 -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
781 -psdir | --psdir | --psdi | --psd | --ps)
783 -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
786 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
787 | -silent | --silent | --silen | --sile | --sil)
790 -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
792 -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
794 sbindir=$ac_optarg ;;
796 -sharedstatedir | --sharedstatedir | --sharedstatedi \
797 | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
798 | --sharedst | --shareds | --shared | --share | --shar \
800 ac_prev=sharedstatedir ;;
801 -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
802 | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
803 | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
805 sharedstatedir=$ac_optarg ;;
807 -site | --site | --sit)
809 -site=* | --site=* | --sit=*)
812 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
814 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
817 -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
818 | --syscon | --sysco | --sysc | --sys | --sy)
819 ac_prev=sysconfdir ;;
820 -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
821 | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
822 sysconfdir=$ac_optarg ;;
824 -target | --target | --targe | --targ | --tar | --ta | --t)
825 ac_prev=target_alias ;;
826 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
827 target_alias=$ac_optarg ;;
829 -v | -verbose | --verbose | --verbos | --verbo | --verb)
832 -version | --version | --versio | --versi | --vers | -V)
835 _AC_INIT_PARSE_ENABLE([with])
837 _AC_INIT_PARSE_ENABLE([without])
840 # Obsolete; use --with-x.
843 -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
844 | --x-incl | --x-inc | --x-in | --x-i)
845 ac_prev=x_includes ;;
846 -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
847 | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
848 x_includes=$ac_optarg ;;
850 -x-libraries | --x-libraries | --x-librarie | --x-librari \
851 | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
852 ac_prev=x_libraries ;;
853 -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
854 | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
855 x_libraries=$ac_optarg ;;
857 -*) AC_MSG_ERROR([unrecognized option: $ac_option
858 Try `$[0] --help' for more information.])
862 ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
863 # Reject names that are not valid shell variable names.
864 expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
865 AC_MSG_ERROR([invalid variable name: $ac_envvar])
866 eval $ac_envvar=\$ac_optarg
870 # FIXME: should be removed in autoconf 3.0.
871 AC_MSG_WARN([you should use --build, --host, --target])
872 expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
873 AC_MSG_WARN([invalid host type: $ac_option])
874 : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
880 if test -n "$ac_prev"; then
881 ac_option=--`echo $ac_prev | sed 's/_/-/g'`
882 AC_MSG_ERROR([missing argument to $ac_option])
885 if test -n "$ac_unrecognized_opts"; then
886 case $enable_option_checking in
888 fatal) AC_MSG_ERROR([Unrecognized options: $ac_unrecognized_opts]) ;;
889 *) AC_MSG_WARN( [Unrecognized options: $ac_unrecognized_opts]) ;;
893 # Be sure to have absolute directory names.
894 for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
895 datadir sysconfdir sharedstatedir localstatedir includedir \
896 oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
897 libdir localedir mandir
899 eval ac_val=\$$ac_var
901 [[\\/$]]* | ?:[[\\/]]* ) continue;;
902 NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
904 AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
907 # There might be people who depend on the old broken behavior: `$host'
908 # used to hold the argument of --host etc.
909 # FIXME: To remove some day.
914 # FIXME: To remove some day.
915 if test "x$host_alias" != x; then
916 if test "x$build_alias" = x; then
917 cross_compiling=maybe
918 AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
919 If a cross compiler is detected then cross compile mode will be used.])
920 elif test "x$build_alias" != "x$host_alias"; then
926 test -n "$host_alias" && ac_tool_prefix=$host_alias-
928 test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
930 m4_divert_pop([PARSE_ARGS])dnl
931 ])# _AC_INIT_PARSE_ARGS
934 # _AC_INIT_PARSE_ENABLE(OPTION-NAME)
935 # ----------------------------------
936 # A trivial front-end for _AC_INIT_PARSE_ENABLE2.
938 m4_define([_AC_INIT_PARSE_ENABLE],
939 [m4_bmatch([$1], [^with],
940 [_AC_INIT_PARSE_ENABLE2([$1], [with])],
941 [_AC_INIT_PARSE_ENABLE2([$1], [enable])])])
944 # _AC_INIT_PARSE_ENABLE2(OPTION-NAME, POSITIVE-NAME)
945 # --------------------------------------------------
946 # Handle an `--enable' or a `--with' option.
948 # OPTION-NAME is `enable', `disable', `with', or `without'.
949 # POSITIVE-NAME is the corresponding positive variant, i.e. `enable' or `with'.
951 # Positive variant of the option is recognized by the condition
952 # OPTION-NAME == POSITIVE-NAME .
954 m4_define([_AC_INIT_PARSE_ENABLE2],
956 ac_useropt=`expr "x$ac_option" : 'x-*$1-\(m4_if([$1], [$2], [[[^=]]], [.])*\)'`
957 # Reject names that are not valid shell variable names.
958 expr "x$ac_useropt" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
960 [invalid ]m4_if([$2], [with], [package], [feature])[ name: $ac_useropt])
961 ac_useropt_orig=$ac_useropt
962 ac_useropt=`AS_ECHO(["$ac_useropt"]) | sed 's/[[-.]]/_/g'`
963 case $ac_user_opts in
967 *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--$1-$ac_useropt_orig"
968 ac_unrecognized_sep=', ';;
970 eval $2_$ac_useropt=m4_if([$1], [$2], [\$ac_optarg], [no]) ;;dnl
976 # Handle the `configure --help' message.
977 m4_define([_AC_INIT_HELP],
978 [m4_divert_push([HELP_BEGIN])dnl
981 # Report the --help message.
983 if test "$ac_init_help" = "long"; then
984 # Omit some internal or obsolete options to make the list less imposing.
985 # This message is too long to be a string in the A/UX 3.1 sh.
987 \`configure' configures m4_ifset([AC_PACKAGE_STRING],
989 [this package]) to adapt to many kinds of systems.
991 Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
993 [To assign environment variables (e.g., CC, CFLAGS...), specify them as
994 VAR=VALUE. See below for descriptions of some of the useful variables.
996 Defaults for the options are specified in brackets.
999 -h, --help display this help and exit
1000 --help=short display options specific to this package
1001 --help=recursive display the short help of all the included packages
1002 -V, --version display version information and exit
1003 -q, --quiet, --silent do not print \`checking...' messages
1004 --cache-file=FILE cache test results in FILE [disabled]
1005 -C, --config-cache alias for \`--cache-file=config.cache'
1006 -n, --no-create do not create output files
1007 --srcdir=DIR find the sources in DIR [configure dir or \`..']
1009 Installation directories:
1010 --prefix=PREFIX install architecture-independent files in PREFIX
1011 [$ac_default_prefix]
1012 --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
1015 By default, \`make install' will install all the files in
1016 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
1017 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
1018 for instance \`--prefix=\$HOME'.
1020 For better control, use the options below.
1022 Fine tuning of the installation directories:
1023 --bindir=DIR user executables [EPREFIX/bin]
1024 --sbindir=DIR system admin executables [EPREFIX/sbin]
1025 --libexecdir=DIR program executables [EPREFIX/libexec]
1026 --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
1027 --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
1028 --localstatedir=DIR modifiable single-machine data [PREFIX/var]
1029 --libdir=DIR object code libraries [EPREFIX/lib]
1030 --includedir=DIR C header files [PREFIX/include]
1031 --oldincludedir=DIR C header files for non-gcc [/usr/include]
1032 --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
1033 --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
1034 --infodir=DIR info documentation [DATAROOTDIR/info]
1035 --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
1036 --mandir=DIR man documentation [DATAROOTDIR/man]
1037 --docdir=DIR documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME], [AC_PACKAGE_TARNAME], [PACKAGE])@:>@[
1038 --htmldir=DIR html documentation [DOCDIR]
1039 --dvidir=DIR dvi documentation [DOCDIR]
1040 --pdfdir=DIR pdf documentation [DOCDIR]
1041 --psdir=DIR ps documentation [DOCDIR]
1045 m4_divert_pop([HELP_BEGIN])dnl
1046 dnl The order of the diversions here is
1048 dnl which may be extended by extra generic options such as with X or
1049 dnl AC_ARG_PROGRAM. Displayed only in long --help.
1052 dnl Support for cross compilation (--build, --host and --target).
1053 dnl Display only in long --help.
1056 dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
1057 dnl then implements the header of the non generic options.
1066 dnl initialized below, in which we dump the trailer (handling of the
1067 dnl recursion for instance).
1068 m4_divert_push([HELP_ENABLE])dnl
1072 if test -n "$ac_init_help"; then
1073 m4_ifset([AC_PACKAGE_STRING],
1074 [ case $ac_init_help in
1075 short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
1078 m4_divert_pop([HELP_ENABLE])dnl
1079 m4_divert_push([HELP_END])dnl
1080 m4_ifset([AC_PACKAGE_BUGREPORT], [
1081 Report bugs to <AC_PACKAGE_BUGREPORT>.])
1086 if test "$ac_init_help" = "recursive"; then
1087 # If there are subdirs, report their specific --help.
1088 for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
1089 test -d "$ac_dir" || continue
1090 _AC_SRCDIRS(["$ac_dir"])
1091 cd "$ac_dir" || { ac_status=$?; continue; }
1092 # Check for guested configure.
1093 if test -f "$ac_srcdir/configure.gnu"; then
1095 $SHELL "$ac_srcdir/configure.gnu" --help=recursive
1096 elif test -f "$ac_srcdir/configure"; then
1098 $SHELL "$ac_srcdir/configure" --help=recursive
1100 AC_MSG_WARN([no configuration information is in $ac_dir])
1102 cd "$ac_pwd" || { ac_status=$?; break; }
1106 test -n "$ac_init_help" && exit $ac_status
1107 m4_divert_pop([HELP_END])dnl
1113 # Handle the `configure --version' message.
1114 m4_define([_AC_INIT_VERSION],
1115 [m4_divert_text([VERSION_BEGIN],
1116 [if $ac_init_version; then
1118 m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
1119 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
1120 generated by m4_PACKAGE_STRING])
1121 m4_divert_text([VERSION_END],
1125 ])# _AC_INIT_VERSION
1128 # _AC_INIT_CONFIG_LOG
1129 # -------------------
1130 # Initialize the config.log file descriptor and write header to it.
1131 m4_define([_AC_INIT_CONFIG_LOG],
1132 [m4_divert_text([INIT_PREPARE],
1133 [m4_define([AS_MESSAGE_LOG_FD], 5)dnl
1134 cat >config.log <<_ACEOF
1135 This file contains any messages produced by compilers while
1136 running configure, to aid debugging if configure makes a mistake.
1138 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1139 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1140 generated by m4_PACKAGE_STRING. Invocation command line was
1145 exec AS_MESSAGE_LOG_FD>>config.log
1146 AS_UNAME >&AS_MESSAGE_LOG_FD
1148 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1151 m4_text_box([Core tests.])
1154 ])])# _AC_INIT_CONFIG_LOG
1159 # Called by AC_INIT to build the preamble of the `configure' scripts.
1160 # 1. Trap and clean up various tmp files.
1161 # 2. Set up the fd and output files
1162 # 3. Remember the options given to `configure' for `config.status --recheck'.
1163 # 4. Initiates confdefs.h
1164 # 5. Loads site and cache files
1165 m4_define([_AC_INIT_PREPARE],
1166 [m4_divert_push([INIT_PREPARE])dnl
1168 # Keep a trace of the command line.
1169 # Strip out --no-create and --no-recursion so they do not pile up.
1170 # Strip out --silent because we don't want to record it for future runs.
1171 # Also quote any args containing shell meta-characters.
1172 # Make two passes to allow for proper duplicate-argument suppression.
1176 ac_must_keep_next=false
1182 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1183 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1184 | -silent | --silent | --silen | --sile | --sil)
1187 ac_arg=`AS_ECHO(["$ac_arg"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1190 1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
1192 ac_configure_args1="$ac_configure_args1 '$ac_arg'"
1193 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1194 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1195 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1196 dnl give --prefix foo bar).
1197 if test $ac_must_keep_next = true; then
1198 ac_must_keep_next=false # Got value, back to normal.
1201 dnl Use broad patterns, as arguments that would have already made configure
1202 dnl exit don't matter.
1203 *=* | --config-cache | -C | -disable-* | --disable-* \
1204 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1205 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1206 | -with-* | --with-* | -without-* | --without-* | --x)
1207 case "$ac_configure_args0 " in
1208 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1211 -* ) ac_must_keep_next=true ;;
1214 ac_configure_args="$ac_configure_args '$ac_arg'"
1219 AS_UNSET(ac_configure_args0)
1220 AS_UNSET(ac_configure_args1)
1222 # When interrupted or exit'd, cleanup temporary files, and complete
1223 # config.log. We remove comments because anyway the quotes in there
1224 # would cause problems or look ugly.
1225 # WARNING: Use '\'' to represent an apostrophe within the trap.
1226 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
1227 trap 'exit_status=$?
1228 # Save into config.log some information that might help in debugging.
1232 AS_BOX([Cache variables.])
1234 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1240 AS_BOX([Output variables.])
1242 for ac_var in $ac_subst_vars
1244 eval ac_val=\$$ac_var
1246 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1248 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1252 if test -n "$ac_subst_files"; then
1253 AS_BOX([File substitutions.])
1255 for ac_var in $ac_subst_files
1257 eval ac_val=\$$ac_var
1259 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1261 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1266 if test -s confdefs.h; then
1267 AS_BOX([confdefs.h.])
1272 test "$ac_signal" != 0 &&
1273 AS_ECHO(["$as_me: caught signal $ac_signal"])
1274 AS_ECHO(["$as_me: exit $exit_status"])
1275 } >&AS_MESSAGE_LOG_FD
1276 rm -f core *.core core.conftest.* &&
1277 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1280 for ac_signal in 1 2 13 15; do
1281 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1285 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1286 rm -f -r conftest* confdefs.h
1287 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1288 dnl containing less than 14 bytes (including the newline).
1289 dnl But the defines below solve this problem.
1291 # Predefined preprocessor variables.
1292 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1293 [Define to the full name of this package.])
1294 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1295 [Define to the one symbol short name of this package.])
1296 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1297 [Define to the version of this package.])
1298 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1299 [Define to the full name and version of this package.])
1300 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1301 [Define to the address where bug reports for this package
1304 # Let the site file select an alternate cache file if it wants to.
1307 m4_divert_pop([INIT_PREPARE])dnl
1308 ])# _AC_INIT_PREPARE
1311 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1312 # ----------------------------------------
1313 # This macro is used only for Autoupdate.
1315 [m4_ifval([$2], [[AC_INIT($@)]],
1318 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1322 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT])
1323 # ----------------------------------------
1324 # Include the user macro files, prepare the diversions, and output the
1325 # preamble of the `configure' script.
1326 # Note that the order is important: first initialize, then set the
1328 m4_define([AC_INIT],
1329 [# Forbidden tokens and exceptions.
1330 m4_pattern_forbid([^_?A[CHUM]_])
1331 m4_pattern_forbid([_AC_])
1332 m4_pattern_forbid([^LIBOBJS$],
1333 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1334 # Actually reserved by M4sh.
1335 m4_pattern_allow([^AS_FLAGS$])
1338 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1349 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1351 dnl Substitute for predefined variables.
1353 AC_SUBST([ECHO_C])dnl
1354 AC_SUBST([ECHO_N])dnl
1355 AC_SUBST([ECHO_T])dnl
1357 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1358 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1359 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1367 ## ------------------------------------------------------------- ##
1368 ## Selecting optional features, working with optional software. ##
1369 ## ------------------------------------------------------------- ##
1371 # AC_PRESERVE_HELP_ORDER
1372 # ----------------------
1373 # Emit help strings in the order given, rather than grouping all --enable-FOO
1374 # and all --with-BAR.
1375 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1376 [m4_divert_once([HELP_ENABLE], [[
1377 Optional Features and Packages:
1378 --disable-option-checking ignore unrecognized --enable/--with options
1379 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1380 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1381 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1382 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1383 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1384 ])# AC_PRESERVE_HELP_ORDER
1386 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1387 # -------------------------------------------------------------------
1388 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1389 # OPTION is either "enable" or "with".
1391 m4_define([_AC_ENABLE_IF],
1392 [# Check whether --$1-$2 was given.
1393 _AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-.], [__]), [$3], [$4])[]dnl
1396 m4_define([_AC_ENABLE_IF_ACTION],
1397 [m4_append_uniq([_AC_USER_OPTS], [$1_$2], [
1399 AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
1402 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1403 # ------------------------------------------------------------------------
1404 AC_DEFUN([AC_ARG_ENABLE],
1405 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1407 [m4_divert_once([HELP_ENABLE], [[
1409 --disable-option-checking ignore unrecognized --enable/--with options
1410 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1411 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1412 m4_divert_once([HELP_ENABLE], [$2])dnl
1413 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1417 AU_DEFUN([AC_ENABLE],
1418 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1421 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1422 # --------------------------------------------------------------------
1423 AC_DEFUN([AC_ARG_WITH],
1424 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1426 [m4_divert_once([HELP_WITH], [[
1428 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1429 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1430 m4_divert_once([HELP_WITH], [$2])dnl
1431 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1435 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1437 # AC_DISABLE_OPTION_CHECKING
1438 # --------------------------------------------------------------------
1439 AC_DEFUN([AC_DISABLE_OPTION_CHECKING],
1440 [m4_divert_once([DEFAULTS], [enable_option_checking=no])
1441 ])# AC_DISABLE_OPTION_CHECKING
1444 ## ----------------------------------------- ##
1445 ## Remembering variables for reconfiguring. ##
1446 ## ----------------------------------------- ##
1449 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1450 # ----------------------------------
1451 # Register VARNAME as a precious variable, and document it in
1452 # `configure --help' (but only once).
1453 AC_DEFUN([AC_ARG_VAR],
1454 [m4_divert_once([HELP_VAR], [[
1455 Some influential environment variables:]])dnl
1456 m4_divert_once([HELP_VAR_END], [[
1457 Use these variables to override the choices made by `configure' or to help
1458 it to find libraries and programs with nonstandard names/locations.]])dnl
1459 m4_expand_once([m4_divert_text([HELP_VAR],
1460 [AS_HELP_STRING([$1], [$2], [ ])])],
1463 _AC_ARG_VAR_PRECIOUS([$1])dnl
1467 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1468 # -----------------------------
1469 # Declare VARNAME is precious.
1470 m4_define([_AC_ARG_VAR_PRECIOUS],
1471 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1478 # We try to diagnose when precious variables have changed. To do this,
1479 # make two early snapshots (after the option processing to take
1480 # explicit variables into account) of those variables: one (ac_env_)
1481 # which represents the current run, and a second (ac_cv_env_) which,
1482 # at the first run, will be saved in the cache. As an exception to
1483 # the cache mechanism, its loading will override these variables (non
1484 # `ac_cv_env_' cache value are only set when unset).
1486 # In subsequent runs, after having loaded the cache, compare
1487 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1488 m4_define([_AC_ARG_VAR_STORE],
1489 [m4_divert_text([PARSE_ARGS],
1490 [for ac_var in $ac_precious_vars; do
1491 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1492 eval ac_env_${ac_var}_value=\$${ac_var}
1493 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1494 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1499 # _AC_ARG_VAR_VALIDATE
1500 # --------------------
1501 # The precious variables are saved twice at the beginning of
1502 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1503 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1504 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1506 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1507 # content of the cached values, while `ac_env_' represents that of the
1510 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1512 m4_define([_AC_ARG_VAR_VALIDATE],
1513 [m4_divert_text([INIT_PREPARE],
1514 [# Check that the precious variables saved in the cache have kept the same
1516 ac_cache_corrupted=false
1517 for ac_var in $ac_precious_vars; do
1518 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1519 eval ac_new_set=\$ac_env_${ac_var}_set
1520 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1521 eval ac_new_val=\$ac_env_${ac_var}_value
1522 case $ac_old_set,$ac_new_set in
1524 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1525 ac_cache_corrupted=: ;;
1527 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1528 ac_cache_corrupted=: ;;
1531 if test "x$ac_old_val" != "x$ac_new_val"; then
1532 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1533 AS_MESSAGE([ former value: $ac_old_val], 2)
1534 AS_MESSAGE([ current value: $ac_new_val], 2)
1535 ac_cache_corrupted=:
1538 # Pass precious variables to config.status.
1539 if test "$ac_new_set" = set; then
1541 *\'*) ac_arg=$ac_var=`AS_ECHO(["$ac_new_val"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1542 *) ac_arg=$ac_var=$ac_new_val ;;
1544 case " $ac_configure_args " in
1545 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1546 *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
1550 if $ac_cache_corrupted; then
1551 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1552 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1554 ])# _AC_ARG_VAR_VALIDATE
1560 ## ---------------------------- ##
1561 ## Transforming program names. ##
1562 ## ---------------------------- ##
1567 # This macro is expanded only once, to avoid that `foo' ends up being
1568 # installed as `ggfoo'.
1569 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1570 [dnl Document the options.
1571 m4_divert_push([HELP_BEGIN])dnl
1574 --program-prefix=PREFIX prepend PREFIX to installed program names
1575 --program-suffix=SUFFIX append SUFFIX to installed program names
1576 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1577 m4_divert_pop([HELP_BEGIN])dnl
1578 test "$program_prefix" != NONE &&
1579 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1580 # Use a double $ so make ignores it.
1581 test "$program_suffix" != NONE &&
1582 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1583 # Double any \ or $.
1584 # By default was `s,x,x', remove it if useless.
1585 [ac_script='s/[\\$]/&&/g;s/;s,x,x,$//']
1586 program_transform_name=`AS_ECHO(["$program_transform_name"]) | sed "$ac_script"`
1593 ## ------------------------- ##
1594 ## Finding auxiliary files. ##
1595 ## ------------------------- ##
1598 # AC_CONFIG_AUX_DIR(DIR)
1599 # ----------------------
1600 # Find install-sh, config.sub, config.guess, and Cygnus configure
1601 # in directory DIR. These are auxiliary files used in configuration.
1602 # DIR can be either absolute or relative to $srcdir.
1603 AC_DEFUN([AC_CONFIG_AUX_DIR],
1604 [AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
1607 # AC_CONFIG_AUX_DIR_DEFAULT
1608 # -------------------------
1609 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1610 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1611 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1612 [AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
1615 # AC_CONFIG_AUX_DIRS(DIR ...)
1616 # ---------------------------
1617 # Internal subroutine.
1618 # Search for the configuration auxiliary files in directory list $1.
1619 # We look only for install-sh, so users of AC_PROG_INSTALL
1620 # do not automatically need to distribute the other auxiliary files.
1621 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1623 for ac_dir in $1; do
1624 if test -f "$ac_dir/install-sh"; then
1626 ac_install_sh="$ac_aux_dir/install-sh -c"
1628 elif test -f "$ac_dir/install.sh"; then
1630 ac_install_sh="$ac_aux_dir/install.sh -c"
1632 elif test -f "$ac_dir/shtool"; then
1634 ac_install_sh="$ac_aux_dir/shtool install -c"
1638 if test -z "$ac_aux_dir"; then
1639 AC_MSG_ERROR([cannot find install-sh or install.sh in $1])
1642 # These three variables are undocumented and unsupported,
1643 # and are intended to be withdrawn in a future Autoconf release.
1644 # They can cause serious problems if a builder's source tree is in a directory
1645 # whose full name contains unusual characters.
1646 ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
1647 ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
1648 ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
1650 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1651 ])# AC_CONFIG_AUX_DIRS
1656 ## ------------------------ ##
1657 ## Finding aclocal macros. ##
1658 ## ------------------------ ##
1661 # AC_CONFIG_MACRO_DIR(DIR)
1662 # ------------------------
1663 # Declare directory containing additional macros for aclocal.
1664 AC_DEFUN([AC_CONFIG_MACRO_DIR], [])
1668 ## --------------------- ##
1669 ## Requiring aux files. ##
1670 ## --------------------- ##
1672 # AC_REQUIRE_AUX_FILE(FILE)
1673 # -------------------------
1674 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1675 # It announces FILE is required in the auxdir.
1676 m4_define([AC_REQUIRE_AUX_FILE],
1677 [AS_LITERAL_IF([$1], [],
1678 [AC_FATAL([$0: requires a literal argument])])])
1682 ## ----------------------------------- ##
1683 ## Getting the canonical system type. ##
1684 ## ----------------------------------- ##
1687 # configure --host=HOST --target=TARGET --build=BUILD
1690 # 1. Build defaults to the current platform, as determined by config.guess.
1691 # 2. Host defaults to build.
1692 # 3. Target defaults to host.
1695 # _AC_CANONICAL_SPLIT(THING)
1696 # --------------------------
1697 # Generate the variables THING, THING_{alias cpu vendor os}.
1698 m4_define([_AC_CANONICAL_SPLIT],
1701 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1703 AC_SUBST([$1], [$ac_cv_$1])dnl
1704 ac_save_IFS=$IFS; IFS='-'
1707 AC_SUBST([$1_cpu], [$[1]])dnl
1708 AC_SUBST([$1_vendor], [$[2]])dnl
1710 [# Remember, the first character of IFS is used to create $]*,
1711 # except with old shells:
1714 case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
1715 AC_SUBST([$1_os])dnl
1716 ])# _AC_CANONICAL_SPLIT
1719 # AC_CANONICAL_BUILD
1720 # ------------------
1721 AC_DEFUN([AC_CANONICAL_BUILD],
1722 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1723 AC_REQUIRE_AUX_FILE([config.sub])dnl
1724 AC_REQUIRE_AUX_FILE([config.guess])dnl
1725 m4_divert_once([HELP_CANON],
1728 --build=BUILD configure for building on BUILD [guessed]]])dnl
1729 # Make sure we can run config.sub.
1730 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
1731 AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
1733 AC_CACHE_CHECK([build system type], [ac_cv_build],
1734 [ac_build_alias=$build_alias
1735 test "x$ac_build_alias" = x &&
1736 ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
1737 test "x$ac_build_alias" = x &&
1738 AC_MSG_ERROR([cannot guess build type; you must specify one])
1739 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
1740 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
1742 _AC_CANONICAL_SPLIT(build)
1743 ])# AC_CANONICAL_BUILD
1748 AC_DEFUN([AC_CANONICAL_HOST],
1749 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1750 m4_divert_once([HELP_CANON],
1751 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1752 AC_CACHE_CHECK([host system type], [ac_cv_host],
1753 [if test "x$host_alias" = x; then
1754 ac_cv_host=$ac_cv_build
1756 ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
1757 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
1760 _AC_CANONICAL_SPLIT([host])
1761 ])# AC_CANONICAL_HOST
1764 # AC_CANONICAL_TARGET
1765 # -------------------
1766 AC_DEFUN([AC_CANONICAL_TARGET],
1767 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1768 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1769 m4_divert_once([HELP_CANON],
1770 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1771 AC_CACHE_CHECK([target system type], [ac_cv_target],
1772 [if test "x$target_alias" = x; then
1773 ac_cv_target=$ac_cv_host
1775 ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
1776 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
1779 _AC_CANONICAL_SPLIT([target])
1781 # The aliases save the names the user supplied, while $host etc.
1782 # will get canonicalized.
1783 test -n "$target_alias" &&
1784 test "$program_prefix$program_suffix$program_transform_name" = \
1786 program_prefix=${target_alias}-[]dnl
1787 ])# AC_CANONICAL_TARGET
1790 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1793 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1794 # ------------------------------------------
1795 # If the cache file is inconsistent with the current host,
1796 # target and build system types, execute CMD or print a default
1797 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1798 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1801 ## ---------------------- ##
1802 ## Caching test results. ##
1803 ## ---------------------- ##
1808 # Look for site or system specific initialization scripts.
1809 m4_define([AC_SITE_LOAD],
1810 [# Prefer explicitly selected file to automatically selected ones.
1811 if test -n "$CONFIG_SITE"; then
1812 set x "$CONFIG_SITE"
1813 elif test "x$prefix" != xNONE; then
1814 set x "$prefix/share/config.site" "$prefix/etc/config.site"
1816 set x "$ac_default_prefix/share/config.site" \
1817 "$ac_default_prefix/etc/config.site"
1822 if test -r "$ac_site_file"; then
1823 AC_MSG_NOTICE([loading site script $ac_site_file])
1824 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1833 m4_define([AC_CACHE_LOAD],
1834 [if test -r "$cache_file"; then
1835 # Some versions of bash will fail to source /dev/null (special
1836 # files actually), so we avoid doing that.
1837 if test -f "$cache_file"; then
1838 AC_MSG_NOTICE([loading cache $cache_file])
1840 [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
1841 *) . "./$cache_file";;
1845 AC_MSG_NOTICE([creating cache $cache_file])
1853 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1854 m4_define([_AC_CACHE_DUMP],
1855 [# The following way of writing the cache mishandles newlines in values,
1856 # but we know of no workaround that is simple, portable, and efficient.
1857 # So, we kill variables containing newlines.
1858 # Ultrix sh set writes to stderr and can't be redirected directly,
1859 # and sets the high bit in the cache file unless we assign to the vars.
1861 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1862 eval ac_val=\$$ac_var
1866 *_cv_*) AC_MSG_WARN([Cache variable $ac_var contains a newline.]) ;;
1869 _ | IFS | as_nl) ;; #(
1870 BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
1871 *) $as_unset $ac_var ;;
1877 case $as_nl`(ac_space=' '; set) 2>&1` in #(
1878 *${as_nl}ac_space=\ *)
1879 # `set' does not quote correctly, so add quotes (double-quote
1880 # substitution turns \\\\ into \\, and sed turns \\ into \).
1883 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
1886 # `set' quotes correctly as required by POSIX, so do not add quotes.
1887 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
1898 # Allow a site initialization script to override cache values.
1899 m4_define([AC_CACHE_SAVE],
1900 [cat >confcache <<\_ACEOF
1901 # This file is a shell script that caches the results of configure
1902 # tests run on this system so they can be shared between configure
1903 # scripts and configure runs, see configure's option --config-cache.
1904 # It is not useful on other systems. If it contains results you don't
1905 # want to keep, you may remove or edit it.
1907 # config.status only pays attention to the cache file if you give it
1908 # the --recheck option to rerun configure.
1910 # `ac_cv_env_foo' variables (set or unset) will be overridden when
1911 # loading this file, other *unset* `ac_cv_foo' will be assigned the
1921 s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
1923 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
1925 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
1926 if test -w "$cache_file"; then
1927 test "x$cache_file" != "x/dev/null" &&
1928 AC_MSG_NOTICE([updating cache $cache_file])
1929 cat confcache >$cache_file
1931 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
1934 rm -f confcache[]dnl
1938 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
1939 # ------------------------------------------
1940 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
1941 # Should be dnl'ed. Try to catch common mistakes.
1942 m4_defun([AC_CACHE_VAL],
1943 [m4_bmatch([$2], [AC_DEFINE],
1944 [AC_DIAGNOSE([syntax],
1945 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
1946 [where no actions should be taken])])dnl
1948 [_AS_ECHO_N([(cached) ])],
1952 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
1953 # -------------------------------------------
1954 # Do not call this macro with a dnl right behind.
1955 m4_defun([AC_CACHE_CHECK],
1956 [AC_MSG_CHECKING([$1])
1957 AC_CACHE_VAL([$2], [$3])dnl
1959 [AC_MSG_RESULT([$$2])],
1960 [ac_res=AS_VAR_GET([$2])
1961 AC_MSG_RESULT([$ac_res])])dnl
1964 # _AC_CACHE_CHECK_INT(MESSAGE, CACHE-ID, EXPRESSION,
1965 # [PROLOGUE = DEFAULT-INCLUDES], [IF-FAILS])
1966 # -------------------------------------------------------------
1967 AC_DEFUN([_AC_CACHE_CHECK_INT],
1968 [AC_CACHE_CHECK([$1], [$2],
1969 [AC_COMPUTE_INT([$2], [$3], [$4], [$5])])
1970 ])# _AC_CACHE_CHECK_INT
1974 ## ---------------------- ##
1975 ## Defining CPP symbols. ##
1976 ## ---------------------- ##
1979 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
1980 # -------------------------------------------
1981 # Used by --trace to collect the list of AC_DEFINEd macros.
1982 m4_define([AC_DEFINE_TRACE_LITERAL],
1983 [m4_pattern_allow([^$1$])dnl
1984 m4_bmatch([$1], ^m4_defn([m4_re_word])$, [],
1985 [m4_warn([syntax], [AC_DEFINE: not an identifier: $1])])dnl
1986 ])# AC_DEFINE_TRACE_LITERAL
1989 # AC_DEFINE_TRACE(CPP-SYMBOL)
1990 # ---------------------------
1991 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
1992 # out non literal symbols.
1993 m4_define([AC_DEFINE_TRACE],
1994 [AS_LITERAL_IF([$1], [AC_DEFINE_TRACE_LITERAL(m4_bpatsubst([[$1]], [(.*)]))])])
1997 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
1998 # -------------------------------------------
1999 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
2000 # and if VARIABLE is affected the same VALUE, do nothing, else
2001 # die. The third argument is used by autoheader.
2002 m4_define([AC_DEFINE], [_AC_DEFINE_Q([\], $@)])
2005 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
2006 # ----------------------------------------------------
2007 # Similar, but perform shell substitutions $ ` \ once on VALUE.
2008 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([], $@)])
2011 # _AC_DEFINE_Q(QUOTE, VARIABLE, [VALUE], [DESCRIPTION])
2012 # -----------------------------------------------------
2013 m4_define([_AC_DEFINE_Q],
2014 [AC_DEFINE_TRACE([$2])dnl
2015 m4_ifval([$4], [AH_TEMPLATE(m4_bpatsubst([[$2]], [(.*)]), [$4])])dnl
2016 cat >>confdefs.h <<$1_ACEOF
2017 [@%:@define] $2 m4_if($#, 2, 1, [$3])
2023 ## -------------------------- ##
2024 ## Setting output variables. ##
2025 ## -------------------------- ##
2028 # AC_SUBST_TRACE(VARIABLE)
2029 # ------------------------
2030 # This macro is used with --trace to collect the list of substituted variables.
2031 m4_define([AC_SUBST_TRACE])
2034 # AC_SUBST(VARIABLE, [VALUE])
2035 # ---------------------------
2036 # Create an output variable from a shell VARIABLE. If VALUE is given
2037 # assign it to VARIABLE. Use `""' is you want to set VARIABLE to an
2038 # empty value, not an empty second argument.
2040 m4_define([AC_SUBST],
2041 [m4_bmatch(m4_bpatsubst([[$1]], [@&t@]), ^m4_defn([m4_re_word])$, [],
2042 [AC_FATAL([$0: `$1' is not a valid shell variable name])])dnl
2043 AC_SUBST_TRACE([$1])dnl
2044 m4_pattern_allow([^$1$])dnl
2045 m4_ifvaln([$2], [$1=$2])[]dnl
2046 m4_append_uniq([_AC_SUBST_VARS], [$1], [
2051 # AC_SUBST_FILE(VARIABLE)
2052 # -----------------------
2053 # Read the comments of the preceding macro.
2054 m4_define([AC_SUBST_FILE],
2055 [m4_pattern_allow([^$1$])dnl
2056 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2061 ## --------------------------------------- ##
2062 ## Printing messages at autoconf runtime. ##
2063 ## --------------------------------------- ##
2065 # In fact, I think we should promote the use of m4_warn and m4_fatal
2066 # directly. This will also avoid to some people to get it wrong
2067 # between AC_FATAL and AC_MSG_ERROR.
2070 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2071 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2072 # --------------------------------
2073 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2074 m4_define([AC_FATAL], [m4_fatal($@)])
2077 # AC_WARNING(MESSAGE)
2078 # -------------------
2079 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2081 m4_define([AC_WARNING],
2082 [AC_DIAGNOSE([syntax], [$1])])
2087 ## ---------------------------------------- ##
2088 ## Printing messages at configure runtime. ##
2089 ## ---------------------------------------- ##
2092 # AC_MSG_CHECKING(FEATURE)
2093 # ------------------------
2094 m4_define([AC_MSG_CHECKING],
2095 [{ _AS_ECHO_LOG([checking $1])
2096 _AS_ECHO_N([checking $1... ]); }dnl
2100 # AC_MSG_RESULT(RESULT)
2101 # ---------------------
2102 m4_define([AC_MSG_RESULT],
2103 [{ _AS_ECHO_LOG([result: $1])
2104 _AS_ECHO([$1]); }dnl
2108 # AC_MSG_WARN(PROBLEM)
2109 # AC_MSG_NOTICE(STRING)
2110 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2111 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2112 # ----------------------------------------
2113 m4_copy([AS_WARN], [AC_MSG_WARN])
2114 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2115 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2116 m4_define([AC_MSG_FAILURE],
2118 See `config.log' for more details.], [$2])])
2121 # _AC_MSG_LOG_CONFTEST
2122 # --------------------
2123 m4_define([_AC_MSG_LOG_CONFTEST],
2124 [AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD
2125 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2129 # AU::AC_CHECKING(FEATURE)
2130 # ------------------------
2131 AU_DEFUN([AC_CHECKING],
2132 [AS_MESSAGE([checking $1...])])
2135 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2136 # ----------------------------------
2137 # No escaping, so it performed also backtick substitution.
2138 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2139 [_AS_ECHO_UNQUOTED([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
2140 _AS_ECHO_UNQUOTED([$1])[]dnl
2144 # AU::AC_VERBOSE(STRING)
2145 # ----------------------
2146 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2153 ## ---------------------------- ##
2154 ## Compiler-running mechanics. ##
2155 ## ---------------------------- ##
2158 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2159 # ----------------------------------
2160 # Eval COMMAND, save the exit status in ac_status, and log it.
2161 AC_DEFUN([_AC_RUN_LOG],
2162 [{ ($2) >&AS_MESSAGE_LOG_FD
2163 ($1) 2>&AS_MESSAGE_LOG_FD
2165 _AS_ECHO_LOG([\$? = $ac_status])
2166 (exit $ac_status); }])
2169 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2170 # -----------------------------------------
2171 # Run COMMAND, save its stderr into conftest.err, save the exit status
2172 # in ac_status, and log it. Don't forget to clean up conftest.err after
2174 # Note that when tracing, most shells will leave the traces in stderr
2175 # starting with "+": that's what this macro tries to address.
2176 AC_DEFUN([_AC_RUN_LOG_STDERR],
2177 [{ ($2) >&AS_MESSAGE_LOG_FD
2180 grep -v '^ *+' conftest.er1 >conftest.err
2182 cat conftest.err >&AS_MESSAGE_LOG_FD
2183 _AS_ECHO_LOG([\$? = $ac_status])
2184 (exit $ac_status); }])
2186 # _AC_DO_ECHO(COMMAND)
2187 # --------------------
2188 # Echo COMMAND. This is designed to be used just before evaluating COMMAND.
2189 AC_DEFUN([_AC_DO_ECHO],
2190 [m4_if([$1], [$ac_try], [], [ac_try="$1"
2192 dnl If the string contains '"', '`', or '\', then just echo it rather
2193 dnl than expanding it. This is a hack, but it is safer, while also
2194 dnl typically expanding simple substrings like '$CC', which is what we want.
2196 dnl Much of this macro body is quoted, to work around misuses like
2197 dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
2198 dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
2199 dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
2200 dnl underquoting misuses, such as
2201 dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
2202 dnl We normally wouldn't bother with this kind of workaround for invalid code
2203 dnl but this change was put in just before Autoconf 2.60 and we wanted to
2204 dnl minimize the integration hassle.
2205 [case "(($ac_try" in
2206 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
2207 *) ac_try_echo=$ac_try;;
2209 eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""]
2210 AS_ECHO(["$ac_try_echo"])])
2214 # Eval COMMAND, save the exit status in ac_status, and log it.
2215 # For internal use only.
2217 [_AC_RUN_LOG([eval "$1"],
2218 [_AC_DO_ECHO([$1])])])
2221 # _AC_DO_STDERR(COMMAND)
2222 # ----------------------
2223 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2224 AC_DEFUN([_AC_DO_STDERR],
2225 [_AC_RUN_LOG_STDERR([eval "$1"],
2226 [_AC_DO_ECHO([$1])])])
2229 # _AC_DO_VAR(VARIABLE)
2230 # --------------------
2231 # Evaluate "$VARIABLE", which should be a valid shell command.
2232 # The purpose of this macro is to write "configure:123: command line"
2233 # into config.log for every test run.
2234 AC_DEFUN([_AC_DO_VAR],
2238 # _AC_DO_TOKENS(COMMAND)
2239 # ----------------------
2240 # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
2241 # tokens of the shell command language.
2242 AC_DEFUN([_AC_DO_TOKENS],
2244 _AC_DO([$ac_try]); }])
2249 # Eval COMMAND, save the exit status in ac_status, and log it.
2250 # Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
2251 # It is present only for backward compatibility with previous Autoconf versions.
2252 AC_DEFUN([_AC_EVAL],
2253 [_AC_RUN_LOG([eval $1],
2254 [eval echo "$as_me:$LINENO: \"$1\""])])
2257 # _AC_EVAL_STDERR(COMMAND)
2258 # ------------------------
2259 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2260 # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
2261 # It is present only for backward compatibility with previous Autoconf versions.
2262 AC_DEFUN([_AC_EVAL_STDERR],
2263 [_AC_RUN_LOG_STDERR([eval $1],
2264 [eval echo "$as_me:$LINENO: \"$1\""])])
2267 # AC_TRY_EVAL(VARIABLE)
2268 # ---------------------
2269 # Evaluate $VARIABLE, which should be a valid shell command.
2270 # The purpose of this macro is to write "configure:123: command line"
2271 # into config.log for every test run.
2273 # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
2274 # undocumented, and should not be used.
2275 # They may be removed or their API changed in a future release.
2276 # Autoconf itself no longer uses these two macros; they are present
2277 # only for backward compatibility with previous versions of Autoconf.
2278 # Not every shell command will work due to problems with eval
2279 # and quoting, and the rules for exactly what does work are tricky.
2280 # Worse, due to double-expansion during evaluation, arbitrary unintended
2281 # shell commands could be executed in some situations.
2282 AC_DEFUN([AC_TRY_EVAL],
2286 # AC_TRY_COMMAND(COMMAND)
2287 # -----------------------
2288 # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
2289 # tokens of the shell command language.
2290 # This macro should not be used; see the comments under AC_TRY_EVAL for why.
2291 AC_DEFUN([AC_TRY_COMMAND],
2293 _AC_EVAL([$ac_try]); }])
2296 # AC_RUN_LOG(COMMAND)
2297 # -------------------
2298 AC_DEFUN([AC_RUN_LOG],
2300 [AS_ECHO(["$as_me:$LINENO: AS_ESCAPE([$1])"])])])
2305 ## ------------------------ ##
2306 ## Examining declarations. ##
2307 ## ------------------------ ##
2311 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2312 # ----------------------------------------------------------------
2313 # Try to preprocess PROGRAM.
2315 # This macro can be used during the selection of a preprocessor.
2316 # eval is necessary to expand ac_cpp.
2317 AC_DEFUN([_AC_PREPROC_IFELSE],
2318 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2319 AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null && {
2320 test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2321 test ! -s conftest.err
2324 [_AC_MSG_LOG_CONFTEST
2326 rm -f conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl
2327 ])# _AC_PREPROC_IFELSE
2330 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2331 # ---------------------------------------------------------------
2332 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2333 # current language was checked for, hence do not use this macro in macros
2334 # looking for a preprocessor.
2335 AC_DEFUN([AC_PREPROC_IFELSE],
2336 [AC_LANG_PREPROC_REQUIRE()dnl
2337 _AC_PREPROC_IFELSE($@)])
2340 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2341 # ---------------------------------------------------------
2342 # AC_TRY_CPP is used to check whether particular header files exist.
2343 # (But it actually tests whether INCLUDES produces no CPP errors.)
2345 # INCLUDES are not defaulted and are double quoted.
2346 AU_DEFUN([AC_TRY_CPP],
2347 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2350 # AC_EGREP_CPP(PATTERN, PROGRAM,
2351 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2352 # ------------------------------------------------------
2353 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2354 # come early, it is not included in AC_BEFORE checks.
2355 AC_DEFUN([AC_EGREP_CPP],
2356 [AC_LANG_PREPROC_REQUIRE()dnl
2357 AC_REQUIRE([AC_PROG_EGREP])dnl
2358 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2359 AS_IF([dnl eval is necessary to expand ac_cpp.
2360 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2361 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2362 dnl Quote $1 to prevent m4 from eating character classes
2363 $EGREP "[$1]" >/dev/null 2>&1],
2370 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2371 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2372 # ---------------------------------------------------------
2373 AC_DEFUN([AC_EGREP_HEADER],
2381 ## ------------------ ##
2382 ## Examining syntax. ##
2383 ## ------------------ ##
2386 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2387 # ----------------------------------------------------------------
2388 # Try to compile PROGRAM.
2389 # This macro can be used during the selection of a compiler.
2390 m4_define([_AC_COMPILE_IFELSE],
2391 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2392 rm -f conftest.$ac_objext
2393 AS_IF([_AC_DO_STDERR($ac_compile) && {
2394 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2395 test ! -s conftest.err
2396 } && test -s conftest.$ac_objext],
2398 [_AC_MSG_LOG_CONFTEST
2400 rm -f core conftest.err conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2401 ])# _AC_COMPILE_IFELSE
2404 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2405 # ---------------------------------------------------------------
2406 # Try to compile PROGRAM. Requires that the compiler for the current
2407 # language was checked for, hence do not use this macro in macros looking
2409 AC_DEFUN([AC_COMPILE_IFELSE],
2410 [AC_LANG_COMPILER_REQUIRE()dnl
2411 _AC_COMPILE_IFELSE($@)])
2414 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2415 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2416 # ---------------------------------------------------
2417 AU_DEFUN([AC_TRY_COMPILE],
2418 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2422 ## --------------------- ##
2423 ## Examining libraries. ##
2424 ## --------------------- ##
2427 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2428 # -------------------------------------------------------------
2429 # Try to link PROGRAM.
2430 # This macro can be used during the selection of a compiler.
2432 # Test that resulting file is executable; see the problem reported by mwoehlke
2433 # in <http://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00048.html>.
2434 # But skip the test when cross-compiling, to prevent problems like the one
2435 # reported by Chris Johns in
2436 # <http://lists.gnu.org/archive/html/autoconf/2007-03/msg00085.html>.
2438 m4_define([_AC_LINK_IFELSE],
2439 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2440 rm -f conftest.$ac_objext conftest$ac_exeext
2441 AS_IF([_AC_DO_STDERR($ac_link) && {
2442 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2443 test ! -s conftest.err
2444 } && test -s conftest$ac_exeext && {
2445 test "$cross_compiling" = yes ||
2446 AS_TEST_X([conftest$ac_exeext])
2449 [_AC_MSG_LOG_CONFTEST
2451 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
2452 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
2453 dnl as it would interfere with the next link command.
2454 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
2455 conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2459 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2460 # ------------------------------------------------------------
2461 # Try to link PROGRAM. Requires that the compiler for the current
2462 # language was checked for, hence do not use this macro in macros looking
2464 AC_DEFUN([AC_LINK_IFELSE],
2465 [AC_LANG_COMPILER_REQUIRE()dnl
2466 _AC_LINK_IFELSE($@)])
2469 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2470 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2471 # ------------------------------------------------
2472 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2473 AU_DEFUN([AC_TRY_LINK],
2474 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2477 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2478 # ACTION-IF-TRUE, [ACTION-IF-FALSE])
2479 # ---------------------------------------------------
2480 AU_DEFUN([AC_COMPILE_CHECK],
2481 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2482 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2487 ## ------------------------------- ##
2488 ## Checking for runtime features. ##
2489 ## ------------------------------- ##
2492 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2493 # ------------------------------------------------------------
2494 # Compile, link, and run.
2495 # This macro can be used during the selection of a compiler.
2496 # We also remove conftest.o as if the compilation fails, some compilers
2497 # don't remove it. We remove gmon.out and bb.out, which may be
2498 # created during the run if the program is built with profiling support.
2499 m4_define([_AC_RUN_IFELSE],
2500 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2501 rm -f conftest$ac_exeext
2502 AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
2504 [AS_ECHO(["$as_me: program exited with status $ac_status"]) >&AS_MESSAGE_LOG_FD
2505 _AC_MSG_LOG_CONFTEST
2507 [( exit $ac_status )
2509 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext m4_ifval([$1],
2510 [conftest.$ac_ext])[]dnl
2514 # AC_RUN_IFELSE(PROGRAM,
2515 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2516 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2517 # ----------------------------------------------------------
2518 # Compile, link, and run. Requires that the compiler for the current
2519 # language was checked for, hence do not use this macro in macros looking
2521 AC_DEFUN([AC_RUN_IFELSE],
2522 [AC_LANG_COMPILER_REQUIRE()dnl
2524 [AC_DIAGNOSE([cross],
2525 [$0 called without default to allow cross compiling])])dnl
2526 AS_IF([test "$cross_compiling" = yes],
2528 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2529 [_AC_RUN_IFELSE($@)])
2533 # AC_TRY_RUN(PROGRAM,
2534 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2535 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2536 # --------------------------------------------------------
2537 AU_DEFUN([AC_TRY_RUN],
2538 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2542 ## ------------------------------------- ##
2543 ## Checking for the existence of files. ##
2544 ## ------------------------------------- ##
2546 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2547 # -------------------------------------------------------------
2549 # Check for the existence of FILE.
2550 AC_DEFUN([AC_CHECK_FILE],
2551 [AC_DIAGNOSE([cross],
2552 [cannot check for file existence when cross compiling])dnl
2553 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2554 AC_CACHE_CHECK([for $1], [ac_File],
2555 [test "$cross_compiling" = yes &&
2556 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2557 if test -r "$1"; then
2558 AS_VAR_SET([ac_File], [yes])
2560 AS_VAR_SET([ac_File], [no])
2562 AS_IF([test AS_VAR_GET([ac_File]) = yes], [$2], [$3])[]dnl
2563 AS_VAR_POPDEF([ac_File])dnl
2567 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2568 # -----------------------------------------------------------------
2569 AC_DEFUN([AC_CHECK_FILES],
2570 [m4_foreach_w([AC_FILE_NAME], [$1],
2571 [AC_CHECK_FILE(AC_FILE_NAME,
2572 [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]AC_FILE_NAME), 1,
2573 [Define to 1 if you have the
2579 ## ------------------------------- ##
2580 ## Checking for declared symbols. ##
2581 ## ------------------------------- ##
2584 # AC_CHECK_DECL(SYMBOL,
2585 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2586 # [INCLUDES = DEFAULT-INCLUDES])
2587 # -------------------------------------------------------
2588 # Check whether SYMBOL (a function, variable, or constant) is declared.
2589 AC_DEFUN([AC_CHECK_DECL],
2590 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])dnl
2591 AC_CACHE_CHECK([whether $1 is declared], [ac_Symbol],
2592 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
2597 [AS_VAR_SET([ac_Symbol], [yes])],
2598 [AS_VAR_SET([ac_Symbol], [no])])])
2599 AS_IF([test AS_VAR_GET([ac_Symbol]) = yes], [$2], [$3])[]dnl
2600 AS_VAR_POPDEF([ac_Symbol])dnl
2604 # AC_CHECK_DECLS(SYMBOLS,
2605 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2606 # [INCLUDES = DEFAULT-INCLUDES])
2607 # --------------------------------------------------------
2608 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2609 # documentation for a detailed explanation of this difference with
2610 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2611 AC_DEFUN([AC_CHECK_DECLS],
2612 [m4_foreach([AC_Symbol], [$1],
2613 [AC_CHECK_DECL(AC_Symbol,
2614 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 1,
2615 [Define to 1 if you have the declaration
2616 of `]AC_Symbol[', and to 0 if you don't.])
2618 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 0)
2624 # AC_CHECK_DECLS_ONCE(SYMBOLS)
2625 # ----------------------------
2626 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
2627 AC_DEFUN([AC_CHECK_DECLS_ONCE],
2629 m4_foreach([AC_Symbol], [$1],
2630 [AC_DEFUN([_AC_Check_Decl_]m4_defn([AC_Symbol]),
2631 [AC_CHECK_DECLS(m4_defn([AC_Symbol]))])
2632 AC_REQUIRE([_AC_Check_Decl_]m4_defn([AC_Symbol]))])
2637 ## ---------------------------------- ##
2638 ## Replacement of library functions. ##
2639 ## ---------------------------------- ##
2642 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
2643 # -----------------------------
2644 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
2645 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
2646 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
2649 # AC_LIBSOURCE(FILE-NAME)
2650 # -----------------------
2651 # Announce we might need the file `FILE-NAME'.
2652 m4_define([AC_LIBSOURCE], [])
2655 # AC_LIBSOURCES([FILE-NAME1, ...])
2656 # -------------------------------
2657 # Announce we might need these files.
2658 m4_define([AC_LIBSOURCES],
2659 [m4_foreach([_AC_FILE_NAME], [$1],
2660 [AC_LIBSOURCE(_AC_FILE_NAME)])])
2663 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
2664 # --------------------------------------------
2665 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2666 m4_define([_AC_LIBOBJ],
2667 [AS_LITERAL_IF([$1],
2668 [AC_LIBSOURCE([$1.c])],
2670 case " $LIB@&t@OBJS " in
2671 *" $1.$ac_objext "* ) ;;
2672 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
2677 # AC_LIBOBJ(FILE-NAME-NOEXT)
2678 # -------------------------
2679 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2680 m4_define([AC_LIBOBJ],
2682 [AC_DIAGNOSE(syntax,
2683 [$0($1): you should use literals])])dnl
2687 # _AC_LIBOBJS_NORMALIZE
2688 # ---------------------
2689 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
2690 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
2691 # Used with AC_CONFIG_COMMANDS_PRE.
2692 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
2695 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
2696 # 1. Remove the extension, and $U if already installed.
2697 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
2698 ac_i=`AS_ECHO(["$ac_i"]) | sed "$ac_script"`
2699 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
2700 # will be set to the directory where LIBOBJS objects are built.
2701 ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
2702 ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
2704 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
2705 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
2709 ## ----------------------------------- ##
2710 ## Checking compiler characteristics. ##
2711 ## ----------------------------------- ##
2714 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2715 # -------------------------------------------------------------------
2716 # Compute the integer EXPRESSION and store the result in the VARIABLE.
2717 # Works OK if cross compiling, but assumes twos-complement arithmetic.
2718 m4_define([_AC_COMPUTE_INT_COMPILE],
2719 [# Depending upon the size, compute the lo and hi bounds.
2720 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
2723 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2724 [ac_hi=$ac_mid; break],
2725 [ac_lo=`expr $ac_mid + 1`
2726 if test $ac_lo -le $ac_mid; then
2730 ac_mid=`expr 2 '*' $ac_mid + 1`])
2732 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
2735 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
2736 [ac_lo=$ac_mid; break],
2737 [ac_hi=`expr '(' $ac_mid ')' - 1`
2738 if test $ac_mid -le $ac_hi; then
2742 ac_mid=`expr 2 '*' $ac_mid`])
2745 # Binary search between lo and hi bounds.
2746 while test "x$ac_lo" != "x$ac_hi"; do
2747 ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
2748 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2749 [ac_hi=$ac_mid], [ac_lo=`expr '(' $ac_mid ')' + 1`])
2755 ])# _AC_COMPUTE_INT_COMPILE
2758 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2759 # ---------------------------------------------------------------
2760 # Store the evaluation of the integer EXPRESSION in VARIABLE.
2761 m4_define([_AC_COMPUTE_INT_RUN],
2762 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
2763 [$2=`cat conftest.val`], [$4])])
2766 # AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS])
2767 # ----------------------------------------------------------
2768 AC_DEFUN([AC_COMPUTE_INT],
2769 [AC_LANG_COMPILER_REQUIRE()dnl
2770 if test "$cross_compiling" = yes; then
2771 _AC_COMPUTE_INT_COMPILE([$2], [$1], [$3], [$4])
2773 _AC_COMPUTE_INT_RUN([$2], [$1], [$3], [$4])
2775 rm -f conftest.val[]dnl
2778 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2779 # -----------------------------------------------------------
2780 # FIXME: this private interface was used by several packages.
2781 # Give them time to transition to AC_COMPUTE_INT and then delete this one.
2782 AC_DEFUN([_AC_COMPUTE_INT],
2783 [AC_COMPUTE_INT([$2], [$1], [$3], [$4])
2784 AC_DIAGNOSE([obsolete],
2785 [The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a
2786 future version or Autoconf. Hence, it is suggested that you use
2787 instead the public AC_COMPUTE_INT macro. Note that the arguments are
2788 slightly different between the two.])dnl