1 # This file is part of Autoconf. -*- Autoconf -*-
2 # Parameterized macros.
3 m4_define([_AC_COPYRIGHT_YEARS], [
4 Copyright (C) 1992-1996, 1998-2017 Free Software Foundation, Inc.
7 # This file is part of Autoconf. This program is free
8 # software; you can redistribute it and/or modify it under the
9 # terms of the GNU General Public License as published by the
10 # Free Software Foundation, either version 3 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # Under Section 7 of GPL version 3, you are granted additional
19 # permissions described in the Autoconf Configure Script Exception,
20 # version 3.0, as published by the Free Software Foundation.
22 # You should have received a copy of the GNU General Public License
23 # and a copy of the Autoconf Configure Script Exception along with
24 # this program; see the files COPYINGv3 and COPYING.EXCEPTION
25 # respectively. If not, see <https://www.gnu.org/licenses/>.
27 # Written by David MacKenzie, with help from
28 # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
29 # Roland McGrath, Noah Friedman, david d zuhn, and many others.
32 ## ---------------- ##
34 ## ---------------- ##
37 # We heavily use m4's diversions both for the initializations and for
38 # required macros (see AC_REQUIRE), because in both cases we have to
39 # issue high in `configure' something which is discovered late.
41 # KILL is only used to suppress output.
43 # The layers of `configure'. We let m4 undivert them by itself, when
44 # it reaches the end of `configure.ac'.
51 # Purpose of the script.
55 # Initialization of bottom layers.
58 # early initializations (defaults)
60 # initialization code, option handling loop.
63 # Handling `configure --help'.
65 # Help msg for AC_CANONICAL_*
67 # Help msg from AC_ARG_ENABLE.
69 # Help msg from AC_ARG_WITH.
71 # Help msg from AC_ARG_VAR.
73 # A small paragraph on the use of the variables.
75 # Tail of the handling of --help.
78 # Head of the handling of --version.
80 # FSF copyright notice for --version.
82 # User copyright notice for --version.
84 # Tail of the handling of --version.
90 # Tail of initialization code.
93 # the tests and output code
97 # _m4_divert(DIVERSION-NAME)
98 # --------------------------
99 # Convert a diversion name into its number. Otherwise, return
100 # DIVERSION-NAME which is supposed to be an actual diversion number.
101 # Of course it would be nicer to use m4_case here, instead of zillions
102 # of little macros, but it then takes twice longer to run `autoconf'!
112 # 3. HEADER-COPYRIGHT
115 m4_define([_m4_divert(DEFAULTS)], 10)
116 m4_define([_m4_divert(PARSE_ARGS)], 20)
118 m4_define([_m4_divert(HELP_BEGIN)], 100)
119 m4_define([_m4_divert(HELP_CANON)], 101)
120 m4_define([_m4_divert(HELP_ENABLE)], 102)
121 m4_define([_m4_divert(HELP_WITH)], 103)
122 m4_define([_m4_divert(HELP_VAR)], 104)
123 m4_define([_m4_divert(HELP_VAR_END)], 105)
124 m4_define([_m4_divert(HELP_END)], 106)
126 m4_define([_m4_divert(VERSION_BEGIN)], 200)
127 m4_define([_m4_divert(VERSION_FSF)], 201)
128 m4_define([_m4_divert(VERSION_USER)], 202)
129 m4_define([_m4_divert(VERSION_END)], 203)
131 m4_define([_m4_divert(SHELL_FN)], 250)
133 m4_define([_m4_divert(INIT_PREPARE)], 300)
137 # AC_DIVERT_PUSH(DIVERSION-NAME)
139 # ------------------------------
140 m4_copy([m4_divert_push],[AC_DIVERT_PUSH])
141 m4_copy([m4_divert_pop], [AC_DIVERT_POP])
145 ## ------------------------------------ ##
146 ## Defining/requiring Autoconf macros. ##
147 ## ------------------------------------ ##
150 # AC_DEFUN(NAME, EXPANSION)
151 # AC_DEFUN_ONCE(NAME, EXPANSION)
152 # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
154 # AC_PROVIDE(MACRO-NAME)
155 # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
156 # -----------------------------------------------------------
157 m4_copy([m4_defun], [AC_DEFUN])
158 m4_copy([m4_defun_once], [AC_DEFUN_ONCE])
159 m4_copy([m4_before], [AC_BEFORE])
160 m4_copy([m4_require], [AC_REQUIRE])
161 m4_copy([m4_provide], [AC_PROVIDE])
162 m4_copy([m4_provide_if], [AC_PROVIDE_IFELSE])
165 # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION])
166 # ------------------------------------------
167 m4_define([AC_OBSOLETE],
168 [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])])
172 ## ----------------------------- ##
173 ## Implementing shell functions. ##
174 ## ----------------------------- ##
177 # AC_REQUIRE_SHELL_FN(NAME-TO-CHECK, COMMENT, BODY, [DIVERSION = SHELL_FN]
178 # ------------------------------------------------------------------------
179 # Same as AS_REQUIRE_SHELL_FN except that the default diversion comes
180 # later in the script (speeding up configure --help and --version).
181 AC_DEFUN([AC_REQUIRE_SHELL_FN],
182 [AS_REQUIRE_SHELL_FN([$1], [$2], [$3], m4_default_quoted([$4], [SHELL_FN]))])
186 ## ----------------------------- ##
187 ## Implementing Autoconf loops. ##
188 ## ----------------------------- ##
191 # AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION)
192 # ------------------------------------------
193 AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]])
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.
225 # _AC_INIT_LITERAL(STRING)
226 # ------------------------
227 # Reject STRING if it contains newline, or if it cannot be used as-is
228 # in single-quoted strings, double-quoted strings, and quoted and
229 # unquoted here-docs.
230 m4_define([_AC_INIT_LITERAL],
231 [m4_if(m4_index(m4_translit([[$1]], [
232 ""], ['']), ['])AS_LITERAL_HEREDOC_IF([$1], [-]), [-1-], [],
233 [m4_warn([syntax], [AC_INIT: not a literal: $1])])])
235 # _AC_INIT_PACKAGE(PACKAGE-NAME, VERSION, BUG-REPORT, [TARNAME], [URL])
236 # ---------------------------------------------------------------------
237 m4_define([_AC_INIT_PACKAGE],
238 [_AC_INIT_LITERAL([$1])
239 _AC_INIT_LITERAL([$2])
240 _AC_INIT_LITERAL([$3])
241 m4_ifndef([AC_PACKAGE_NAME],
242 [m4_define([AC_PACKAGE_NAME], [$1])])
243 m4_ifndef([AC_PACKAGE_TARNAME],
244 [m4_define([AC_PACKAGE_TARNAME],
246 [m4_bpatsubst(m4_tolower(m4_bpatsubst([[$1]],
248 [[^_abcdefghijklmnopqrstuvwxyz0123456789]],
250 m4_ifndef([AC_PACKAGE_VERSION],
251 [m4_define([AC_PACKAGE_VERSION], [$2])])
252 m4_ifndef([AC_PACKAGE_STRING],
253 [m4_define([AC_PACKAGE_STRING], [$1 $2])])
254 m4_ifndef([AC_PACKAGE_BUGREPORT],
255 [m4_define([AC_PACKAGE_BUGREPORT], [$3])])
256 m4_ifndef([AC_PACKAGE_URL],
257 [m4_define([AC_PACKAGE_URL],
258 m4_if([$5], [], [m4_if(m4_index([$1], [GNU ]), [0],
259 [[https://www.gnu.org/software/]m4_defn([AC_PACKAGE_TARNAME])[/]])],
264 # AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER],
265 # [FILTER = m4_newline])
266 # ------------------------------------------------------
267 # Emit TEXT, a copyright notice, in the top of `configure' and in
268 # --version output. Macros in TEXT are evaluated once. Process
269 # the --version output through FILTER (m4_newline, m4_do, and
270 # m4_copyright_condense are common filters).
271 m4_define([AC_COPYRIGHT],
272 [AS_COPYRIGHT([$1])[]]dnl
273 [m4_divert_text(m4_default_quoted([$2], [VERSION_USER]),
274 [m4_default([$3], [m4_newline])([$1])])])# AC_COPYRIGHT
277 # AC_REVISION(REVISION-INFO)
278 # --------------------------
279 # The second quote in the translit is just to cope with font-lock-mode
280 # which sees the opening of a string.
281 m4_define([AC_REVISION],
282 [m4_divert_text([HEADER-REVISION],
283 [@%:@ From __file__ m4_translit([$1], [$""]).])dnl
289 ## ---------------------------------------- ##
290 ## Requirements over the Autoconf version. ##
291 ## ---------------------------------------- ##
294 # AU::AC_PREREQ(VERSION)
295 # ----------------------
296 # Update this `AC_PREREQ' statement to require the current version of
297 # Autoconf. But fail if ever this autoupdate is too old.
299 # Note that `m4_defn([m4_PACKAGE_VERSION])' below are expanded before
300 # calling `AU_DEFUN', i.e., it is hard coded. Otherwise it would be
301 # quite complex for autoupdate to import the value of
302 # `m4_PACKAGE_VERSION'. We could `AU_DEFUN' `m4_PACKAGE_VERSION', but
303 # this would replace all its occurrences with the current version of
304 # Autoconf, which is certainly not what the user intended.
305 AU_DEFUN([AC_PREREQ],
306 [m4_version_prereq([$1])[]dnl
307 [AC_PREREQ(]]m4_dquote(m4_dquote(m4_defn([m4_PACKAGE_VERSION])))[[)]])
312 # Complain and exit if the Autoconf version is less than VERSION.
313 m4_undefine([AC_PREREQ])
314 m4_copy([m4_version_prereq], [AC_PREREQ])
317 # AC_AUTOCONF_VERSION
318 # -------------------
319 # The current version of Autoconf parsing this file.
320 m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])
326 ## ---------------- ##
327 ## Initialization. ##
328 ## ---------------- ##
331 # All the following macros are used by AC_INIT. Ideally, they should
332 # be presented in the order in which they are output. Please, help us
333 # sorting it, or at least, don't augment the entropy.
338 # Provide useful headers; override the HEADER-COMMENT created by M4sh.
339 m4_define([_AC_INIT_NOTICE],
340 [m4_cleardivert([HEADER-COMMENT])]dnl
341 [m4_divert_text([HEADER-COMMENT],
342 [@%:@ Guess values for system-dependent variables and create Makefiles.
343 @%:@ Generated by m4_PACKAGE_STRING[]dnl
344 m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
346 m4_ifset([AC_PACKAGE_BUGREPORT],
347 [m4_divert_text([HEADER-COMMENT],
349 @%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
355 # We dump to VERSION_FSF to make sure we are inserted before the
356 # user copyrights, and after the setup of the --version handling.
357 m4_define([_AC_INIT_COPYRIGHT],
358 [AC_COPYRIGHT(m4_defn([_AC_COPYRIGHT_YEARS]), [VERSION_FSF], [
359 m4_copyright_condense])dnl
361 [This configure script is free software; the Free Software Foundation
362 gives unlimited permission to copy, distribute and modify it.],
363 [VERSION_FSF], [m4_echo])])
368 # Set up the file descriptors used by `configure'.
369 # File descriptor usage:
370 # 0 standard input (/dev/null)
372 # 2 errors and warnings
373 # AS_MESSAGE_LOG_FD compiler messages saved in config.log
374 # AS_MESSAGE_FD checking for... messages and results
375 # AS_ORIGINAL_STDIN_FD original standard input (still open)
377 # stdin is /dev/null because checks that run programs may
378 # inadvertently run interactive ones, which would stop configuration
379 # until someone typed an EOF.
380 m4_define([AS_MESSAGE_FD], 6)
381 m4_define([AS_ORIGINAL_STDIN_FD], 7)
382 # That's how they used to be named.
383 AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD])
384 AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
389 # Values which defaults can be set from `configure.ac'.
390 # `/bin/machine' is used in `glibcbug'. The others are used in config.*
391 m4_define([_AC_INIT_DEFAULTS],
392 [m4_divert_push([DEFAULTS])dnl
394 test -n "$DJDIR" || exec AS_ORIGINAL_STDIN_FD<&0 </dev/null
395 exec AS_MESSAGE_FD>&1
398 # hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
399 # so uname gets run too.
400 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
405 ac_default_prefix=/usr/local
407 ac_config_libobj_dir=.
414 AC_SUBST([PATH_SEPARATOR])dnl
416 # Identity of this package.
417 AC_SUBST([PACKAGE_NAME],
418 [m4_ifdef([AC_PACKAGE_NAME], ['AC_PACKAGE_NAME'])])dnl
419 AC_SUBST([PACKAGE_TARNAME],
420 [m4_ifdef([AC_PACKAGE_TARNAME], ['AC_PACKAGE_TARNAME'])])dnl
421 AC_SUBST([PACKAGE_VERSION],
422 [m4_ifdef([AC_PACKAGE_VERSION], ['AC_PACKAGE_VERSION'])])dnl
423 AC_SUBST([PACKAGE_STRING],
424 [m4_ifdef([AC_PACKAGE_STRING], ['AC_PACKAGE_STRING'])])dnl
425 AC_SUBST([PACKAGE_BUGREPORT],
426 [m4_ifdef([AC_PACKAGE_BUGREPORT], ['AC_PACKAGE_BUGREPORT'])])dnl
427 AC_SUBST([PACKAGE_URL],
428 [m4_ifdef([AC_PACKAGE_URL], ['AC_PACKAGE_URL'])])dnl
430 m4_divert_pop([DEFAULTS])dnl
431 m4_wrap_lifo([m4_divert_text([DEFAULTS],
432 [ac_subst_vars='m4_set_dump([_AC_SUBST_VARS], m4_newline)'
433 ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'
435 enable_option_checking
436 m4_ifdef([_AC_USER_OPTS], [m4_defn([_AC_USER_OPTS])
438 m4_ifdef([_AC_PRECIOUS_VARS],
439 [_AC_ARG_VAR_STORE[]dnl
440 _AC_ARG_VAR_VALIDATE[]dnl
441 ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
442 m4_ifdef([_AC_LIST_SUBDIRS],
443 [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
445 ])# _AC_INIT_DEFAULTS
448 # AC_PREFIX_DEFAULT(PREFIX)
449 # -------------------------
450 AC_DEFUN([AC_PREFIX_DEFAULT],
451 [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])])
454 # AC_PREFIX_PROGRAM(PROGRAM)
455 # --------------------------
456 # Guess the value for the `prefix' variable by looking for
457 # the argument program along PATH and taking its parent.
458 # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
459 # set `prefix' to /usr/local/gnu.
460 # This comes too late to find a site file based on the prefix,
461 # and it might use a cached value for the path.
462 # No big loss, I think, since most configures don't use this macro anyway.
463 AC_DEFUN([AC_PREFIX_PROGRAM],
464 [if test "x$prefix" = xNONE; then
465 dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle.
466 _AS_ECHO_N([checking for prefix by ])
467 AC_PATH_PROG(ac_prefix_program, [$1])
468 if test -n "$ac_prefix_program"; then
469 prefix=`AS_DIRNAME(["$ac_prefix_program"])`
470 prefix=`AS_DIRNAME(["$prefix"])`
473 ])# AC_PREFIX_PROGRAM
476 # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
477 # ---------------------------------------------
478 # UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
479 # relative to the directory that configure is in, which we can look
480 # for to find out if srcdir is correct.
481 AC_DEFUN([AC_CONFIG_SRCDIR],
482 [m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
487 # Set ac_pwd, and sanity-check it and the source and installation directories.
489 # (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
491 AC_DEFUN([_AC_INIT_DIRCHECK],
492 [m4_divert_push([PARSE_ARGS])dnl
494 ac_pwd=`pwd` && test -n "$ac_pwd" &&
495 ac_ls_di=`ls -di .` &&
496 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
497 AC_MSG_ERROR([working directory cannot be determined])
498 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
499 AC_MSG_ERROR([pwd does not report name of working directory])
501 m4_divert_pop([PARSE_ARGS])dnl
502 ])# _AC_INIT_DIRCHECK
506 # Compute `srcdir' based on `$ac_unique_file'.
508 # (We have to AC_DEFUN it, since we use AC_REQUIRE.)
510 AC_DEFUN([_AC_INIT_SRCDIR],
511 [AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
512 m4_divert_push([PARSE_ARGS])dnl
514 # Find the source files, if location was not specified.
515 if test -z "$srcdir"; then
516 ac_srcdir_defaulted=yes
517 # Try the directory containing this script, then the parent directory.
518 ac_confdir=`AS_DIRNAME(["$as_myself"])`
520 if test ! -r "$srcdir/$ac_unique_file"; then
524 ac_srcdir_defaulted=no
526 if test ! -r "$srcdir/$ac_unique_file"; then
527 test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
528 AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
530 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
532 cd "$srcdir" && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
534 # When building in place, set srcdir=.
535 if test "$ac_abs_confdir" = "$ac_pwd"; then
538 # Remove unnecessary trailing slashes from srcdir.
539 # Double slashes in file names in object file debugging info
540 # mess up M-x gdb in Emacs.
542 */) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
544 m4_divert_pop([PARSE_ARGS])dnl
548 # _AC_INIT_PARSE_ARGS
549 # -------------------
550 m4_define([_AC_INIT_PARSE_ARGS],
551 [m4_divert_push([PARSE_ARGS])dnl
553 # Initialize some variables set by options.
555 ac_init_version=false
556 ac_unrecognized_opts=
558 # The variables have the same names as the options, with
559 # dashes changed to underlines.
561 AC_SUBST(exec_prefix, NONE)dnl
564 AC_SUBST(prefix, NONE)dnl
567 AC_SUBST(program_transform_name, [s,x,x,])dnl
575 # Installation directory options.
576 # These are left unexpanded so users can "make install exec_prefix=/foo"
577 # and all the variables that are supposed to be based on exec_prefix
578 # by default will actually change.
579 # Use braces instead of parens because sh, perl, etc. also accept them.
580 # (The list follows the same order as the GNU Coding Standards.)
581 AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
582 AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
583 AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
584 AC_SUBST([datarootdir], ['${prefix}/share'])dnl
585 AC_SUBST([datadir], ['${datarootdir}'])dnl
586 AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
587 AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
588 AC_SUBST([localstatedir], ['${prefix}/var'])dnl
589 AC_SUBST([runstatedir], ['${localstatedir}/run'])dnl
590 AC_SUBST([includedir], ['${prefix}/include'])dnl
591 AC_SUBST([oldincludedir], ['/usr/include'])dnl
592 AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
593 ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
594 ['${datarootdir}/doc/${PACKAGE}'])])dnl
595 AC_SUBST([infodir], ['${datarootdir}/info'])dnl
596 AC_SUBST([htmldir], ['${docdir}'])dnl
597 AC_SUBST([dvidir], ['${docdir}'])dnl
598 AC_SUBST([pdfdir], ['${docdir}'])dnl
599 AC_SUBST([psdir], ['${docdir}'])dnl
600 AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
601 AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
602 AC_SUBST([mandir], ['${datarootdir}/man'])dnl
608 # If the previous option needs an argument, assign it.
609 if test -n "$ac_prev"; then
610 eval $ac_prev=\$ac_option
616 *=?*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
621 # Accept the important Cygnus configure options, so we can diagnose typos.
623 case $ac_dashdash$ac_option in
627 -bindir | --bindir | --bindi | --bind | --bin | --bi)
629 -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
632 -build | --build | --buil | --bui | --bu)
633 ac_prev=build_alias ;;
634 -build=* | --build=* | --buil=* | --bui=* | --bu=*)
635 build_alias=$ac_optarg ;;
637 -cache-file | --cache-file | --cache-fil | --cache-fi \
638 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
639 ac_prev=cache_file ;;
640 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
641 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
642 cache_file=$ac_optarg ;;
645 cache_file=config.cache ;;
647 -datadir | --datadir | --datadi | --datad)
649 -datadir=* | --datadir=* | --datadi=* | --datad=*)
650 datadir=$ac_optarg ;;
652 -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
653 | --dataroo | --dataro | --datar)
654 ac_prev=datarootdir ;;
655 -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
656 | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
657 datarootdir=$ac_optarg ;;
659 _AC_INIT_PARSE_ENABLE([disable])
661 -docdir | --docdir | --docdi | --doc | --do)
663 -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
666 -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
668 -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
671 _AC_INIT_PARSE_ENABLE([enable])
673 -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
674 | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
675 | --exec | --exe | --ex)
676 ac_prev=exec_prefix ;;
677 -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
678 | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
679 | --exec=* | --exe=* | --ex=*)
680 exec_prefix=$ac_optarg ;;
682 -gas | --gas | --ga | --g)
683 # Obsolete; use --with-gas.
686 -help | --help | --hel | --he | -h)
688 -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
689 ac_init_help=recursive ;;
690 -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
691 ac_init_help=short ;;
693 -host | --host | --hos | --ho)
694 ac_prev=host_alias ;;
695 -host=* | --host=* | --hos=* | --ho=*)
696 host_alias=$ac_optarg ;;
698 -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
700 -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
702 htmldir=$ac_optarg ;;
704 -includedir | --includedir | --includedi | --included | --include \
705 | --includ | --inclu | --incl | --inc)
706 ac_prev=includedir ;;
707 -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
708 | --includ=* | --inclu=* | --incl=* | --inc=*)
709 includedir=$ac_optarg ;;
711 -infodir | --infodir | --infodi | --infod | --info | --inf)
713 -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
714 infodir=$ac_optarg ;;
716 -libdir | --libdir | --libdi | --libd)
718 -libdir=* | --libdir=* | --libdi=* | --libd=*)
721 -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
722 | --libexe | --libex | --libe)
723 ac_prev=libexecdir ;;
724 -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
725 | --libexe=* | --libex=* | --libe=*)
726 libexecdir=$ac_optarg ;;
728 -localedir | --localedir | --localedi | --localed | --locale)
730 -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
731 localedir=$ac_optarg ;;
733 -localstatedir | --localstatedir | --localstatedi | --localstated \
734 | --localstate | --localstat | --localsta | --localst | --locals)
735 ac_prev=localstatedir ;;
736 -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
737 | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
738 localstatedir=$ac_optarg ;;
740 -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
742 -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
746 # Obsolete; use --without-fp.
749 -no-create | --no-create | --no-creat | --no-crea | --no-cre \
750 | --no-cr | --no-c | -n)
753 -no-recursion | --no-recursion | --no-recursio | --no-recursi \
754 | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
757 -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
758 | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
759 | --oldin | --oldi | --old | --ol | --o)
760 ac_prev=oldincludedir ;;
761 -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
762 | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
763 | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
764 oldincludedir=$ac_optarg ;;
766 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
768 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
771 -program-prefix | --program-prefix | --program-prefi | --program-pref \
772 | --program-pre | --program-pr | --program-p)
773 ac_prev=program_prefix ;;
774 -program-prefix=* | --program-prefix=* | --program-prefi=* \
775 | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
776 program_prefix=$ac_optarg ;;
778 -program-suffix | --program-suffix | --program-suffi | --program-suff \
779 | --program-suf | --program-su | --program-s)
780 ac_prev=program_suffix ;;
781 -program-suffix=* | --program-suffix=* | --program-suffi=* \
782 | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
783 program_suffix=$ac_optarg ;;
785 -program-transform-name | --program-transform-name \
786 | --program-transform-nam | --program-transform-na \
787 | --program-transform-n | --program-transform- \
788 | --program-transform | --program-transfor \
789 | --program-transfo | --program-transf \
790 | --program-trans | --program-tran \
791 | --progr-tra | --program-tr | --program-t)
792 ac_prev=program_transform_name ;;
793 -program-transform-name=* | --program-transform-name=* \
794 | --program-transform-nam=* | --program-transform-na=* \
795 | --program-transform-n=* | --program-transform-=* \
796 | --program-transform=* | --program-transfor=* \
797 | --program-transfo=* | --program-transf=* \
798 | --program-trans=* | --program-tran=* \
799 | --progr-tra=* | --program-tr=* | --program-t=*)
800 program_transform_name=$ac_optarg ;;
802 -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
804 -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
807 -psdir | --psdir | --psdi | --psd | --ps)
809 -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
812 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
813 | -silent | --silent | --silen | --sile | --sil)
816 -runstatedir | --runstatedir | --runstatedi | --runstated \
817 | --runstate | --runstat | --runsta | --runst | --runs \
818 | --run | --ru | --r)
819 ac_prev=runstatedir ;;
820 -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
821 | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
822 | --run=* | --ru=* | --r=*)
823 runstatedir=$ac_optarg ;;
825 -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
827 -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
829 sbindir=$ac_optarg ;;
831 -sharedstatedir | --sharedstatedir | --sharedstatedi \
832 | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
833 | --sharedst | --shareds | --shared | --share | --shar \
835 ac_prev=sharedstatedir ;;
836 -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
837 | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
838 | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
840 sharedstatedir=$ac_optarg ;;
842 -site | --site | --sit)
844 -site=* | --site=* | --sit=*)
847 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
849 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
852 -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
853 | --syscon | --sysco | --sysc | --sys | --sy)
854 ac_prev=sysconfdir ;;
855 -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
856 | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
857 sysconfdir=$ac_optarg ;;
859 -target | --target | --targe | --targ | --tar | --ta | --t)
860 ac_prev=target_alias ;;
861 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
862 target_alias=$ac_optarg ;;
864 -v | -verbose | --verbose | --verbos | --verbo | --verb)
867 -version | --version | --versio | --versi | --vers | -V)
870 _AC_INIT_PARSE_ENABLE([with])
872 _AC_INIT_PARSE_ENABLE([without])
875 # Obsolete; use --with-x.
878 -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
879 | --x-incl | --x-inc | --x-in | --x-i)
880 ac_prev=x_includes ;;
881 -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
882 | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
883 x_includes=$ac_optarg ;;
885 -x-libraries | --x-libraries | --x-librarie | --x-librari \
886 | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
887 ac_prev=x_libraries ;;
888 -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
889 | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
890 x_libraries=$ac_optarg ;;
892 -*) AC_MSG_ERROR([unrecognized option: `$ac_option'
893 Try `$[0] --help' for more information])
897 ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
898 # Reject names that are not valid shell variable names.
899 case $ac_envvar in #(
900 '' | [[0-9]]* | *[[!_$as_cr_alnum]]* )
901 AC_MSG_ERROR([invalid variable name: `$ac_envvar']) ;;
903 eval $ac_envvar=\$ac_optarg
907 # FIXME: should be removed in autoconf 3.0.
908 AC_MSG_WARN([you should use --build, --host, --target])
909 expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
910 AC_MSG_WARN([invalid host type: $ac_option])
911 : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
917 if test -n "$ac_prev"; then
918 ac_option=--`echo $ac_prev | sed 's/_/-/g'`
919 AC_MSG_ERROR([missing argument to $ac_option])
922 if test -n "$ac_unrecognized_opts"; then
923 case $enable_option_checking in
925 fatal) AC_MSG_ERROR([unrecognized options: $ac_unrecognized_opts]) ;;
926 *) AC_MSG_WARN( [unrecognized options: $ac_unrecognized_opts]) ;;
930 # Check all directory arguments for consistency.
931 for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
932 datadir sysconfdir sharedstatedir localstatedir includedir \
933 oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
934 libdir localedir mandir runstatedir
936 eval ac_val=\$$ac_var
937 # Remove trailing slashes.
940 ac_val=`expr "X$ac_val" : 'X\(.*[[^/]]\)' \| "X$ac_val" : 'X\(.*\)'`
941 eval $ac_var=\$ac_val;;
943 # Be sure to have absolute directory names.
945 [[\\/$]]* | ?:[[\\/]]* ) continue;;
946 NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
948 AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
951 # There might be people who depend on the old broken behavior: `$host'
952 # used to hold the argument of --host etc.
953 # FIXME: To remove some day.
958 # FIXME: To remove some day.
959 if test "x$host_alias" != x; then
960 if test "x$build_alias" = x; then
961 cross_compiling=maybe
962 elif test "x$build_alias" != "x$host_alias"; then
968 test -n "$host_alias" && ac_tool_prefix=$host_alias-
970 test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
972 m4_divert_pop([PARSE_ARGS])dnl
973 ])# _AC_INIT_PARSE_ARGS
976 # _AC_INIT_PARSE_ENABLE(OPTION-NAME)
977 # ----------------------------------
978 # A trivial front-end for _AC_INIT_PARSE_ENABLE2.
980 m4_define([_AC_INIT_PARSE_ENABLE],
981 [m4_bmatch([$1], [^with],
982 [_AC_INIT_PARSE_ENABLE2([$1], [with])],
983 [_AC_INIT_PARSE_ENABLE2([$1], [enable])])])
986 # _AC_INIT_PARSE_ENABLE2(OPTION-NAME, POSITIVE-NAME)
987 # --------------------------------------------------
988 # Handle an `--enable' or a `--with' option.
990 # OPTION-NAME is `enable', `disable', `with', or `without'.
991 # POSITIVE-NAME is the corresponding positive variant, i.e. `enable' or `with'.
993 # Positive variant of the option is recognized by the condition
994 # OPTION-NAME == POSITIVE-NAME .
996 m4_define([_AC_INIT_PARSE_ENABLE2],
998 ac_useropt=`expr "x$ac_option" : 'x-*$1-\(m4_if([$1], [$2], [[[^=]]], [.])*\)'`
999 # Reject names that are not valid shell variable names.
1000 expr "x$ac_useropt" : "[.*[^-+._$as_cr_alnum]]" >/dev/null &&
1001 AC_MSG_ERROR([invalid ]m4_if([$2], [with],
1002 [package], [feature])[ name: `$ac_useropt'])
1003 ac_useropt_orig=$ac_useropt
1004 ac_useropt=`AS_ECHO(["$ac_useropt"]) | sed 's/[[-+.]]/_/g'`
1005 case $ac_user_opts in
1009 *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--$1-$ac_useropt_orig"
1010 ac_unrecognized_sep=', ';;
1012 eval $2_$ac_useropt=m4_if([$1], [$2], [\$ac_optarg], [no]) ;;dnl
1018 # Handle the `configure --help' message.
1019 m4_define([_AC_INIT_HELP],
1020 [m4_divert_push([HELP_BEGIN])dnl
1023 # Report the --help message.
1025 if test "$ac_init_help" = "long"; then
1026 # Omit some internal or obsolete options to make the list less imposing.
1027 # This message is too long to be a string in the A/UX 3.1 sh.
1029 \`configure' configures m4_ifset([AC_PACKAGE_STRING],
1030 [AC_PACKAGE_STRING],
1031 [this package]) to adapt to many kinds of systems.
1033 Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
1035 [To assign environment variables (e.g., CC, CFLAGS...), specify them as
1036 VAR=VALUE. See below for descriptions of some of the useful variables.
1038 Defaults for the options are specified in brackets.
1041 -h, --help display this help and exit
1042 --help=short display options specific to this package
1043 --help=recursive display the short help of all the included packages
1044 -V, --version display version information and exit
1045 -q, --quiet, --silent do not print \`checking ...' messages
1046 --cache-file=FILE cache test results in FILE [disabled]
1047 -C, --config-cache alias for \`--cache-file=config.cache'
1048 -n, --no-create do not create output files
1049 --srcdir=DIR find the sources in DIR [configure dir or \`..']
1051 Installation directories:
1052 ]AS_HELP_STRING([--prefix=PREFIX],
1053 [install architecture-independent files in PREFIX [$ac_default_prefix]])
1054 AS_HELP_STRING([--exec-prefix=EPREFIX],
1055 [install architecture-dependent files in EPREFIX [PREFIX]])[
1057 By default, \`make install' will install all the files in
1058 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
1059 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
1060 for instance \`--prefix=\$HOME'.
1062 For better control, use the options below.
1064 Fine tuning of the installation directories:
1065 --bindir=DIR user executables [EPREFIX/bin]
1066 --sbindir=DIR system admin executables [EPREFIX/sbin]
1067 --libexecdir=DIR program executables [EPREFIX/libexec]
1068 --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
1069 --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
1070 --localstatedir=DIR modifiable single-machine data [PREFIX/var]
1071 --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
1072 --libdir=DIR object code libraries [EPREFIX/lib]
1073 --includedir=DIR C header files [PREFIX/include]
1074 --oldincludedir=DIR C header files for non-gcc [/usr/include]
1075 --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
1076 --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
1077 --infodir=DIR info documentation [DATAROOTDIR/info]
1078 --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
1079 --mandir=DIR man documentation [DATAROOTDIR/man]
1080 ]AS_HELP_STRING([--docdir=DIR],
1081 [documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME],
1082 [AC_PACKAGE_TARNAME], [PACKAGE])@:>@)[
1083 --htmldir=DIR html documentation [DOCDIR]
1084 --dvidir=DIR dvi documentation [DOCDIR]
1085 --pdfdir=DIR pdf documentation [DOCDIR]
1086 --psdir=DIR ps documentation [DOCDIR]
1090 m4_divert_pop([HELP_BEGIN])dnl
1091 dnl The order of the diversions here is
1093 dnl which may be extended by extra generic options such as with X or
1094 dnl AC_ARG_PROGRAM. Displayed only in long --help.
1097 dnl Support for cross compilation (--build, --host and --target).
1098 dnl Display only in long --help.
1101 dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
1102 dnl then implements the header of the non generic options.
1111 dnl initialized below, in which we dump the trailer (handling of the
1112 dnl recursion for instance).
1113 m4_divert_push([HELP_ENABLE])dnl
1117 if test -n "$ac_init_help"; then
1118 m4_ifset([AC_PACKAGE_STRING],
1119 [ case $ac_init_help in
1120 short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
1123 m4_divert_pop([HELP_ENABLE])dnl
1124 m4_divert_push([HELP_END])dnl
1126 Report bugs to m4_ifset([AC_PACKAGE_BUGREPORT], [<AC_PACKAGE_BUGREPORT>],
1127 [the package provider]).dnl
1128 m4_ifdef([AC_PACKAGE_NAME], [m4_ifset([AC_PACKAGE_URL], [
1129 AC_PACKAGE_NAME home page: <AC_PACKAGE_URL>.])dnl
1130 m4_if(m4_index(m4_defn([AC_PACKAGE_NAME]), [GNU ]), [0], [
1131 General help using GNU software: <https://www.gnu.org/gethelp/>.])])
1136 if test "$ac_init_help" = "recursive"; then
1137 # If there are subdirs, report their specific --help.
1138 for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
1139 test -d "$ac_dir" ||
1140 { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
1142 _AC_SRCDIRS(["$ac_dir"])
1143 cd "$ac_dir" || { ac_status=$?; continue; }
1144 # Check for guested configure.
1145 if test -f "$ac_srcdir/configure.gnu"; then
1147 $SHELL "$ac_srcdir/configure.gnu" --help=recursive
1148 elif test -f "$ac_srcdir/configure"; then
1150 $SHELL "$ac_srcdir/configure" --help=recursive
1152 AC_MSG_WARN([no configuration information is in $ac_dir])
1154 cd "$ac_pwd" || { ac_status=$?; break; }
1158 test -n "$ac_init_help" && exit $ac_status
1159 m4_divert_pop([HELP_END])dnl
1165 # Handle the `configure --version' message.
1166 m4_define([_AC_INIT_VERSION],
1167 [m4_divert_text([VERSION_BEGIN],
1168 [if $ac_init_version; then
1170 m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
1171 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
1172 generated by m4_PACKAGE_STRING])
1173 m4_divert_text([VERSION_END],
1177 ])# _AC_INIT_VERSION
1180 # _AC_INIT_CONFIG_LOG
1181 # -------------------
1182 # Initialize the config.log file descriptor and write header to it.
1183 m4_define([_AC_INIT_CONFIG_LOG],
1184 [m4_divert_text([INIT_PREPARE],
1185 [m4_define([AS_MESSAGE_LOG_FD], 5)dnl
1186 cat >config.log <<_ACEOF
1187 This file contains any messages produced by compilers while
1188 running configure, to aid debugging if configure makes a mistake.
1190 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1191 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1192 generated by m4_PACKAGE_STRING. Invocation command line was
1197 exec AS_MESSAGE_LOG_FD>>config.log
1198 AS_UNAME >&AS_MESSAGE_LOG_FD
1200 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1203 m4_text_box([Core tests.])
1206 ])])# _AC_INIT_CONFIG_LOG
1211 # Called by AC_INIT to build the preamble of the `configure' scripts.
1212 # 1. Trap and clean up various tmp files.
1213 # 2. Set up the fd and output files
1214 # 3. Remember the options given to `configure' for `config.status --recheck'.
1215 # 4. Initiates confdefs.h
1216 # 5. Loads site and cache files
1217 m4_define([_AC_INIT_PREPARE],
1218 [m4_divert_push([INIT_PREPARE])dnl
1220 # Keep a trace of the command line.
1221 # Strip out --no-create and --no-recursion so they do not pile up.
1222 # Strip out --silent because we don't want to record it for future runs.
1223 # Also quote any args containing shell meta-characters.
1224 # Make two passes to allow for proper duplicate-argument suppression.
1228 ac_must_keep_next=false
1234 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1235 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1236 | -silent | --silent | --silen | --sile | --sil)
1239 ac_arg=`AS_ECHO(["$ac_arg"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1242 1) AS_VAR_APPEND([ac_configure_args0], [" '$ac_arg'"]) ;;
1244 AS_VAR_APPEND([ac_configure_args1], [" '$ac_arg'"])
1245 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1246 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1247 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1248 dnl give --prefix foo bar).
1249 if test $ac_must_keep_next = true; then
1250 ac_must_keep_next=false # Got value, back to normal.
1253 dnl Use broad patterns, as arguments that would have already made configure
1254 dnl exit don't matter.
1255 *=* | --config-cache | -C | -disable-* | --disable-* \
1256 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1257 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1258 | -with-* | --with-* | -without-* | --without-* | --x)
1259 case "$ac_configure_args0 " in
1260 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1263 -* ) ac_must_keep_next=true ;;
1266 AS_VAR_APPEND([ac_configure_args], [" '$ac_arg'"])
1271 AS_UNSET(ac_configure_args0)
1272 AS_UNSET(ac_configure_args1)
1274 # When interrupted or exit'd, cleanup temporary files, and complete
1275 # config.log. We remove comments because anyway the quotes in there
1276 # would cause problems or look ugly.
1277 # WARNING: Use '\'' to represent an apostrophe within the trap.
1278 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
1279 trap 'exit_status=$?
1282 # Save into config.log some information that might help in debugging.
1286 AS_BOX([Cache variables.])
1288 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1294 AS_BOX([Output variables.])
1296 for ac_var in $ac_subst_vars
1298 eval ac_val=\$$ac_var
1300 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1302 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1306 if test -n "$ac_subst_files"; then
1307 AS_BOX([File substitutions.])
1309 for ac_var in $ac_subst_files
1311 eval ac_val=\$$ac_var
1313 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1315 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1320 if test -s confdefs.h; then
1321 AS_BOX([confdefs.h.])
1326 test "$ac_signal" != 0 &&
1327 AS_ECHO(["$as_me: caught signal $ac_signal"])
1328 AS_ECHO(["$as_me: exit $exit_status"])
1329 } >&AS_MESSAGE_LOG_FD
1330 rm -f core *.core core.conftest.* &&
1331 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1334 for ac_signal in 1 2 13 15; do
1335 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1339 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1340 rm -f -r conftest* confdefs.h
1342 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1343 dnl containing less than 14 bytes (including the newline).
1344 AS_ECHO(["/* confdefs.h */"]) > confdefs.h
1346 # Predefined preprocessor variables.
1347 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1348 [Define to the full name of this package.])dnl
1349 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1350 [Define to the one symbol short name of this package.])dnl
1351 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1352 [Define to the version of this package.])dnl
1353 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1354 [Define to the full name and version of this package.])dnl
1355 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1356 [Define to the address where bug reports for this package
1357 should be sent.])dnl
1358 AC_DEFINE_UNQUOTED([PACKAGE_URL], ["$PACKAGE_URL"],
1359 [Define to the home page for this package.])
1361 # Let the site file select an alternate cache file if it wants to.
1364 m4_divert_pop([INIT_PREPARE])dnl
1365 ])# _AC_INIT_PREPARE
1368 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1369 # ----------------------------------------
1370 # This macro is used only for Autoupdate.
1372 [m4_ifval([$2], [[AC_INIT($@)]],
1375 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1379 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT], [TARNAME], [URL])
1380 # ----------------------------------------------------------
1381 # Include the user macro files, prepare the diversions, and output the
1382 # preamble of the `configure' script.
1384 # If BUG-REPORT is omitted, do without (unless the user previously
1385 # defined the m4 macro AC_PACKAGE_BUGREPORT). If TARNAME is omitted,
1386 # use PACKAGE to seed it. If URL is omitted, use
1387 # `https://www.gnu.org/software/TARNAME/' if PACKAGE begins with `GNU',
1388 # otherwise, do without.
1390 # Note that the order is important: first initialize, then set the
1392 m4_define([AC_INIT],
1393 [# Forbidden tokens and exceptions.
1394 m4_pattern_forbid([^_?A[CHUM]_])
1395 m4_pattern_forbid([_AC_])
1396 m4_pattern_forbid([^LIBOBJS$],
1397 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1398 # Actually reserved by M4sh.
1399 m4_pattern_allow([^AS_FLAGS$])
1400 # So that the autoconf-generated scripts will always re-execute
1401 # themselves with $CONFIG_SHELL, if that's set in the environment.
1402 m4_define([_AS_FORCE_REEXEC_WITH_CONFIG_SHELL], [yes])
1405 m4_divert_push([KILL])
1406 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1417 m4_divert_text([SHELL_FN], [
1418 m4_text_box([Autoconf initialization.])])
1420 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1422 dnl Substitute for predefined variables.
1424 AC_SUBST([ECHO_C])dnl
1425 AC_SUBST([ECHO_N])dnl
1426 AC_SUBST([ECHO_T])dnl
1428 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1429 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1430 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1438 ## ------------------------------------------------------------- ##
1439 ## Selecting optional features, working with optional software. ##
1440 ## ------------------------------------------------------------- ##
1442 # AC_PRESERVE_HELP_ORDER
1443 # ----------------------
1444 # Emit help strings in the order given, rather than grouping all --enable-FOO
1445 # and all --with-BAR.
1446 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1447 [m4_divert_once([HELP_ENABLE], [[
1448 Optional Features and Packages:
1449 --disable-option-checking ignore unrecognized --enable/--with options
1450 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1451 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1452 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1453 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1454 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1455 ])# AC_PRESERVE_HELP_ORDER
1457 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1458 # -------------------------------------------------------------------
1459 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1460 # OPTION is either "enable" or "with".
1462 m4_define([_AC_ENABLE_IF],
1463 [@%:@ Check whether --$1-$2 was given.
1464 _AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-+.], [___]), [$3], [$4])
1467 m4_define([_AC_ENABLE_IF_ACTION],
1468 [m4_append_uniq([_AC_USER_OPTS], [$1_$2], [
1470 AS_IF([test ${$1_$2+y}], [$1val=$$1_$2; $3], [$4])dnl
1473 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1474 # ------------------------------------------------------------------------
1475 AC_DEFUN([AC_ARG_ENABLE],
1476 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1478 [m4_divert_once([HELP_ENABLE], [[
1480 --disable-option-checking ignore unrecognized --enable/--with options
1481 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1482 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1483 m4_divert_once([HELP_ENABLE], [$2])dnl
1484 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1488 AU_DEFUN([AC_ENABLE],
1489 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1492 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1493 # --------------------------------------------------------------------
1494 AC_DEFUN([AC_ARG_WITH],
1495 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1497 [m4_divert_once([HELP_WITH], [[
1499 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1500 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1501 m4_divert_once([HELP_WITH], [$2])dnl
1502 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1506 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1508 # AC_DISABLE_OPTION_CHECKING
1509 # --------------------------
1510 AC_DEFUN([AC_DISABLE_OPTION_CHECKING],
1511 [m4_divert_once([DEFAULTS], [enable_option_checking=no])
1512 ])# AC_DISABLE_OPTION_CHECKING
1515 ## ----------------------------------------- ##
1516 ## Remembering variables for reconfiguring. ##
1517 ## ----------------------------------------- ##
1520 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1521 # ----------------------------------
1522 # Register VARNAME as a precious variable, and document it in
1523 # `configure --help' (but only once).
1524 AC_DEFUN([AC_ARG_VAR],
1525 [m4_divert_once([HELP_VAR], [[
1526 Some influential environment variables:]])dnl
1527 m4_divert_once([HELP_VAR_END], [[
1528 Use these variables to override the choices made by `configure' or to help
1529 it to find libraries and programs with nonstandard names/locations.]])dnl
1530 m4_expand_once([m4_divert_text([HELP_VAR],
1531 [AS_HELP_STRING([$1], [$2], [ ])])],
1534 _AC_ARG_VAR_PRECIOUS([$1])dnl
1538 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1539 # -----------------------------
1540 # Declare VARNAME is precious.
1541 m4_define([_AC_ARG_VAR_PRECIOUS],
1542 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1549 # We try to diagnose when precious variables have changed. To do this,
1550 # make two early snapshots (after the option processing to take
1551 # explicit variables into account) of those variables: one (ac_env_)
1552 # which represents the current run, and a second (ac_cv_env_) which,
1553 # at the first run, will be saved in the cache. As an exception to
1554 # the cache mechanism, its loading will override these variables (non
1555 # `ac_cv_env_' cache value are only set when unset).
1557 # In subsequent runs, after having loaded the cache, compare
1558 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1559 m4_define([_AC_ARG_VAR_STORE],
1560 [m4_divert_text([PARSE_ARGS],
1561 [for ac_var in $ac_precious_vars; do
1562 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1563 eval ac_env_${ac_var}_value=\$${ac_var}
1564 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1565 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1570 # _AC_ARG_VAR_VALIDATE
1571 # --------------------
1572 # The precious variables are saved twice at the beginning of
1573 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1574 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1575 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1577 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1578 # content of the cached values, while `ac_env_' represents that of the
1581 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1583 m4_define([_AC_ARG_VAR_VALIDATE],
1584 [m4_divert_text([INIT_PREPARE],
1585 [# Check that the precious variables saved in the cache have kept the same
1587 ac_cache_corrupted=false
1588 for ac_var in $ac_precious_vars; do
1589 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1590 eval ac_new_set=\$ac_env_${ac_var}_set
1591 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1592 eval ac_new_val=\$ac_env_${ac_var}_value
1593 case $ac_old_set,$ac_new_set in
1595 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1596 ac_cache_corrupted=: ;;
1598 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1599 ac_cache_corrupted=: ;;
1602 if test "x$ac_old_val" != "x$ac_new_val"; then
1603 # differences in whitespace do not lead to failure.
1604 ac_old_val_w=`echo x $ac_old_val`
1605 ac_new_val_w=`echo x $ac_new_val`
1606 if test "$ac_old_val_w" != "$ac_new_val_w"; then
1607 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1608 ac_cache_corrupted=:
1610 AS_MESSAGE([warning: ignoring whitespace changes in `$ac_var' since the previous run:], 2)
1611 eval $ac_var=\$ac_old_val
1613 AS_MESSAGE([ former value: `$ac_old_val'], 2)
1614 AS_MESSAGE([ current value: `$ac_new_val'], 2)
1617 # Pass precious variables to config.status.
1618 if test "$ac_new_set" = set; then
1620 *\'*) ac_arg=$ac_var=`AS_ECHO(["$ac_new_val"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1621 *) ac_arg=$ac_var=$ac_new_val ;;
1623 case " $ac_configure_args " in
1624 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1625 *) AS_VAR_APPEND([ac_configure_args], [" '$ac_arg'"]) ;;
1629 if $ac_cache_corrupted; then
1630 AS_MESSAGE([error: in `$ac_pwd':], 2)
1631 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1632 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1634 ])# _AC_ARG_VAR_VALIDATE
1640 ## ---------------------------- ##
1641 ## Transforming program names. ##
1642 ## ---------------------------- ##
1647 # This macro is expanded only once, to avoid that `foo' ends up being
1648 # installed as `ggfoo'.
1649 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1650 [dnl Document the options.
1651 m4_divert_push([HELP_BEGIN])dnl
1654 --program-prefix=PREFIX prepend PREFIX to installed program names
1655 --program-suffix=SUFFIX append SUFFIX to installed program names
1656 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1657 m4_divert_pop([HELP_BEGIN])dnl
1658 test "$program_prefix" != NONE &&
1659 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1660 # Use a double $ so make ignores it.
1661 test "$program_suffix" != NONE &&
1662 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1663 # Double any \ or $.
1664 # By default was `s,x,x', remove it if useless.
1665 [ac_script='s/[\\$]/&&/g;s/;s,x,x,$//']
1666 program_transform_name=`AS_ECHO(["$program_transform_name"]) | sed "$ac_script"`
1673 ## ------------------------- ##
1674 ## Finding auxiliary files. ##
1675 ## ------------------------- ##
1678 # AC_CONFIG_AUX_DIR(DIR)
1679 # ----------------------
1680 # Find install-sh, config.sub, config.guess, and Cygnus configure
1681 # in directory DIR. These are auxiliary files used in configuration.
1682 # DIR can be either absolute or relative to $srcdir.
1683 AC_DEFUN([AC_CONFIG_AUX_DIR],
1684 [AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
1687 # AC_CONFIG_AUX_DIR_DEFAULT
1688 # -------------------------
1689 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1690 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1691 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1692 [AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
1695 # AC_CONFIG_AUX_DIRS(DIR ...)
1696 # ---------------------------
1697 # Internal subroutine.
1698 # Search for the configuration auxiliary files in directory list $1.
1699 # We look only for install-sh, so users of AC_PROG_INSTALL
1700 # do not automatically need to distribute the other auxiliary files.
1701 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1705 if test -f "$ac_dir/install-sh"; then
1707 ac_install_sh="$ac_aux_dir/install-sh -c"
1709 elif test -f "$ac_dir/install.sh"; then
1711 ac_install_sh="$ac_aux_dir/install.sh -c"
1713 elif test -f "$ac_dir/shtool"; then
1715 ac_install_sh="$ac_aux_dir/shtool install -c"
1719 if test -z "$ac_aux_dir"; then
1720 AC_MSG_ERROR([cannot find install-sh, install.sh, or shtool in $1])
1723 # These three variables are undocumented and unsupported,
1724 # and are intended to be withdrawn in a future Autoconf release.
1725 # They can cause serious problems if a builder's source tree is in a directory
1726 # whose full name contains unusual characters.
1727 ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
1728 ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
1729 ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
1731 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1732 ])# AC_CONFIG_AUX_DIRS
1737 ## ------------------------ ##
1738 ## Finding aclocal macros. ##
1739 ## ------------------------ ##
1742 # AC_CONFIG_MACRO_DIR_TRACE(DIR)
1743 # ------------------------------
1744 # This macro exists solely for tracing - never invoke it directly.
1745 # It will be called once per directory listed in either form of
1746 # AC_CONFIG_MACRO_DIR[S].
1747 m4_define([AC_CONFIG_MACRO_DIR_TRACE],
1748 [m4_fatal([Do not invoke $0 directly])])
1750 # _AC_CONFIG_MACRO_DIRS_USED
1751 # --------------------------
1752 # Internal witness macro, redefined to empty after first directory is traced.
1753 m4_define([_AC_CONFIG_MACRO_DIRS_USED], [-])
1755 # _AC_CONFIG_MACRO_DIRS(CALLER, DIR)
1756 # ----------------------------------
1757 # Internal workhorse macro to ensure a sane calling pattern of CALLER, and
1758 # eventually trace DIR through the documented public trace point.
1759 m4_define([_AC_CONFIG_MACRO_DIRS],
1760 [m4_if([$1], [-AC_CONFIG_MACRO_DIRS], [AC_CONFIG_MACRO_DIR([$2])],
1761 [$1], [AC_CONFIG_MACRO_DIR], [m4_fatal([$1 can only be used once])],
1762 [m4_define([$0_USED])m4_pushdef([AC_CONFIG_MACRO_DIR_TRACE])]]dnl
1763 [[AC_CONFIG_MACRO_DIR_TRACE([$2])m4_popdef([AC_CONFIG_MACRO_DIR_TRACE])])])
1765 # AC_CONFIG_MACRO_DIRS(DIR-1 [DIR-2 ... DIR-n])
1766 # --------------------------------------------
1767 # Declare directories containing additional macros for aclocal.
1768 # This macro can be called multiple times, and with multiple arguments.
1769 # Do not trace this macro; instead trace AC_CONFIG_MACRO_DIR_TRACE.
1770 # If no directory has been traced yet, then this macro also triggers
1771 # a trace of AC_CONFIG_MACRO_DIR on the first directory.
1772 AC_DEFUN([AC_CONFIG_MACRO_DIRS],
1773 [m4_map_args_w([$1], [_$0(_$0_USED()[$0], ], [)])])
1775 # AC_CONFIG_MACRO_DIR(DIR)
1776 # ------------------------
1777 # Declare directory containing additional macros for aclocal.
1778 # This macro exists for backward compatibility; while tools can trace this,
1779 # we recommend tracing AC_CONFIG_MACRO_DIR_TRACE instead. This macro can
1780 # only be used once, and must not be used after AC_CONFIG_MACRO_DIRS.
1781 AC_DEFUN([AC_CONFIG_MACRO_DIR],
1782 [_$0S(_$0S_USED()[$0], [$1])])
1785 ## --------------------- ##
1786 ## Requiring aux files. ##
1787 ## --------------------- ##
1789 # AC_REQUIRE_AUX_FILE(FILE)
1790 # -------------------------
1791 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1792 # It announces FILE is required in the auxdir.
1793 m4_define([AC_REQUIRE_AUX_FILE],
1794 [AS_LITERAL_WORD_IF([$1], [],
1795 [m4_fatal([$0: requires a literal argument])])])
1799 ## ----------------------------------- ##
1800 ## Getting the canonical system type. ##
1801 ## ----------------------------------- ##
1804 # configure --host=HOST --target=TARGET --build=BUILD
1807 # 1. Build defaults to the current platform, as determined by config.guess.
1808 # 2. Host defaults to build.
1809 # 3. Target defaults to host.
1812 # _AC_CANONICAL_SPLIT(THING)
1813 # --------------------------
1814 # Generate the variables THING, THING_{alias cpu vendor os}.
1815 m4_define([_AC_CANONICAL_SPLIT],
1818 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1820 AC_SUBST([$1], [$ac_cv_$1])dnl
1821 ac_save_IFS=$IFS; IFS='-'
1824 AC_SUBST([$1_cpu], [$[1]])dnl
1825 AC_SUBST([$1_vendor], [$[2]])dnl
1827 [# Remember, the first character of IFS is used to create $]*,
1828 # except with old shells:
1831 case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
1832 AC_SUBST([$1_os])dnl
1833 ])# _AC_CANONICAL_SPLIT
1836 # AC_CANONICAL_BUILD
1837 # ------------------
1838 AC_DEFUN_ONCE([AC_CANONICAL_BUILD],
1839 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1840 AC_REQUIRE_AUX_FILE([config.sub])dnl
1841 AC_REQUIRE_AUX_FILE([config.guess])dnl
1842 m4_divert_once([HELP_CANON],
1845 --build=BUILD configure for building on BUILD [guessed]]])dnl
1846 # Make sure we can run config.sub.
1847 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
1848 AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
1850 AC_CACHE_CHECK([build system type], [ac_cv_build],
1851 [ac_build_alias=$build_alias
1852 test "x$ac_build_alias" = x &&
1853 ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
1854 test "x$ac_build_alias" = x &&
1855 AC_MSG_ERROR([cannot guess build type; you must specify one])
1856 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
1857 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
1859 _AC_CANONICAL_SPLIT(build)
1860 ])# AC_CANONICAL_BUILD
1865 AC_DEFUN_ONCE([AC_CANONICAL_HOST],
1866 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1867 m4_divert_once([HELP_CANON],
1868 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1869 AC_CACHE_CHECK([host system type], [ac_cv_host],
1870 [if test "x$host_alias" = x; then
1871 ac_cv_host=$ac_cv_build
1873 ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
1874 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
1877 _AC_CANONICAL_SPLIT([host])
1878 ])# AC_CANONICAL_HOST
1881 # AC_CANONICAL_TARGET
1882 # -------------------
1883 AC_DEFUN_ONCE([AC_CANONICAL_TARGET],
1884 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1885 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1886 m4_divert_once([HELP_CANON],
1887 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1888 AC_CACHE_CHECK([target system type], [ac_cv_target],
1889 [if test "x$target_alias" = x; then
1890 ac_cv_target=$ac_cv_host
1892 ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
1893 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
1896 _AC_CANONICAL_SPLIT([target])
1898 # The aliases save the names the user supplied, while $host etc.
1899 # will get canonicalized.
1900 test -n "$target_alias" &&
1901 test "$program_prefix$program_suffix$program_transform_name" = \
1903 program_prefix=${target_alias}-[]dnl
1904 ])# AC_CANONICAL_TARGET
1907 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1910 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1911 # ------------------------------------------
1912 # If the cache file is inconsistent with the current host,
1913 # target and build system types, execute CMD or print a default
1914 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1915 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1918 ## ---------------------- ##
1919 ## Caching test results. ##
1920 ## ---------------------- ##
1925 # Look for site- or system-specific initialization scripts.
1926 m4_define([AC_SITE_LOAD],
1927 [# Prefer an explicitly selected file to automatically selected ones.
1930 if test -n "$CONFIG_SITE"; then
1931 # We do not want a PATH search for config.site.
1932 case $CONFIG_SITE in @%:@((
1933 -*) ac_site_file1=./$CONFIG_SITE;;
1934 */*) ac_site_file1=$CONFIG_SITE;;
1935 *) ac_site_file1=./$CONFIG_SITE;;
1937 elif test "x$prefix" != xNONE; then
1938 ac_site_file1=$prefix/share/config.site
1939 ac_site_file2=$prefix/etc/config.site
1941 ac_site_file1=$ac_default_prefix/share/config.site
1942 ac_site_file2=$ac_default_prefix/etc/config.site
1944 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
1946 test "x$ac_site_file" = xNONE && continue
1947 if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
1948 AC_MSG_NOTICE([loading site script $ac_site_file])
1949 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1951 || AC_MSG_FAILURE([failed to load site script $ac_site_file])
1959 m4_define([AC_CACHE_LOAD],
1960 [if test -r "$cache_file"; then
1961 # Some versions of bash will fail to source /dev/null (special files
1962 # actually), so we avoid doing that. DJGPP emulates it as a regular file.
1963 if test /dev/null != "$cache_file" && test -f "$cache_file"; then
1964 AC_MSG_NOTICE([loading cache $cache_file])
1966 [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
1967 *) . "./$cache_file";;
1971 AC_MSG_NOTICE([creating cache $cache_file])
1979 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1980 m4_define([_AC_CACHE_DUMP],
1981 [# The following way of writing the cache mishandles newlines in values,
1982 # but we know of no workaround that is simple, portable, and efficient.
1983 # So, we kill variables containing newlines.
1984 # Ultrix sh set writes to stderr and can't be redirected directly,
1985 # and sets the high bit in the cache file unless we assign to the vars.
1987 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1988 eval ac_val=\$$ac_var
1992 *_cv_*) AC_MSG_WARN([cache variable $ac_var contains a newline]) ;;
1995 _ | IFS | as_nl) ;; #(
1996 BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
1997 *) AS_UNSET([$ac_var]) ;;
2003 case $as_nl`(ac_space=' '; set) 2>&1` in #(
2004 *${as_nl}ac_space=\ *)
2005 # `set' does not quote correctly, so add quotes: double-quote
2006 # substitution turns \\\\ into \\, and sed turns \\ into \.
2009 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
2012 # `set' quotes correctly as required by POSIX, so do not add quotes.
2013 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
2024 # Allow a site initialization script to override cache values.
2025 m4_define([AC_CACHE_SAVE],
2026 [cat >confcache <<\_ACEOF
2027 # This file is a shell script that caches the results of configure
2028 # tests run on this system so they can be shared between configure
2029 # scripts and configure runs, see configure's option --config-cache.
2030 # It is not useful on other systems. If it contains results you don't
2031 # want to keep, you may remove or edit it.
2033 # config.status only pays attention to the cache file if you give it
2034 # the --recheck option to rerun configure.
2036 # `ac_cv_env_foo' variables (set or unset) will be overridden when
2037 # loading this file, other *unset* `ac_cv_foo' will be assigned the
2047 s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
2049 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
2051 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
2052 if test -w "$cache_file"; then
2053 if test "x$cache_file" != "x/dev/null"; then
2054 AC_MSG_NOTICE([updating cache $cache_file])
2055 if test ! -f "$cache_file" || test -h "$cache_file"; then
2056 cat confcache >"$cache_file"
2058 dnl Try to update the cache file atomically even on different mount points;
2059 dnl at the same time, avoid filename limitation issues in the common case.
2060 case $cache_file in #(
2062 mv -f confcache "$cache_file"$$ &&
2063 mv -f "$cache_file"$$ "$cache_file" ;; #(
2065 mv -f confcache "$cache_file" ;;
2070 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
2073 rm -f confcache[]dnl
2077 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
2078 # ------------------------------------------
2079 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
2080 # Should be dnl'ed. Try to catch common mistakes.
2081 m4_defun([AC_CACHE_VAL],
2082 [AS_LITERAL_WORD_IF([$1], [m4_if(m4_index(m4_quote($1), [_cv_]), [-1],
2083 [AC_DIAGNOSE([syntax],
2084 [$0($1, ...): suspicious cache-id, must contain _cv_ to be cached])])])dnl
2085 m4_if(m4_index([$2], [AC_DEFINE]), [-1], [],
2086 [AC_DIAGNOSE([syntax],
2087 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
2088 [where no actions should be taken])])dnl
2089 m4_if(m4_index([$2], [AC_SUBST]), [-1], [],
2090 [AC_DIAGNOSE([syntax],
2091 [$0($1, ...): suspicious presence of an AC_SUBST in the second argument, ]dnl
2092 [where no actions should be taken])])dnl
2094 [_AS_ECHO_N([(cached) ])],
2099 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
2100 # -------------------------------------------
2101 # Do not call this macro with a dnl right behind.
2102 m4_defun([AC_CACHE_CHECK],
2103 [AC_MSG_CHECKING([$1])
2104 AC_CACHE_VAL([$2], [$3])dnl
2105 AS_LITERAL_WORD_IF([$2],
2106 [AC_MSG_RESULT([$$2])],
2107 [AS_VAR_COPY([ac_res], [$2])
2108 AC_MSG_RESULT([$ac_res])])dnl
2111 # _AC_CACHE_CHECK_INT(MESSAGE, CACHE-ID, EXPRESSION,
2112 # [PROLOGUE = DEFAULT-INCLUDES], [IF-FAILS])
2113 # --------------------------------------------------------------
2114 AC_DEFUN([_AC_CACHE_CHECK_INT],
2115 [AC_CACHE_CHECK([$1], [$2],
2116 [AC_COMPUTE_INT([$2], [$3], [$4], [$5])])
2117 ])# _AC_CACHE_CHECK_INT
2121 ## ---------------------- ##
2122 ## Defining CPP symbols. ##
2123 ## ---------------------- ##
2126 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
2127 # -------------------------------------------
2128 # Used by --trace to collect the list of AC_DEFINEd macros.
2129 m4_define([AC_DEFINE_TRACE_LITERAL],
2130 [m4_pattern_allow([^$1$])dnl
2131 AS_IDENTIFIER_IF([$1], [],
2132 [m4_warn([syntax], [AC_DEFINE: not an identifier: $1])])dnl
2133 ])# AC_DEFINE_TRACE_LITERAL
2136 # AC_DEFINE_TRACE(CPP-SYMBOL)
2137 # ---------------------------
2138 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
2139 # out non literal symbols. CPP-SYMBOL must not include any parameters.
2140 m4_define([AC_DEFINE_TRACE],
2141 [AS_LITERAL_WORD_IF([$1], [AC_DEFINE_TRACE_LITERAL(_m4_expand([$1]))])])
2144 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
2145 # -------------------------------------------
2146 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
2147 # and if VARIABLE is affected the same VALUE, do nothing, else
2148 # die. The third argument is used by autoheader.
2149 m4_define([AC_DEFINE], [_AC_DEFINE_Q([_$0], $@)])
2151 # _AC_DEFINE(STRING)
2152 # ------------------
2153 # Append the pre-expanded STRING and a newline to confdefs.h, as if by
2154 # a quoted here-doc.
2155 m4_define([_AC_DEFINE],
2156 [AS_ECHO(["AS_ESCAPE([[$1]])"]) >>confdefs.h])
2159 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
2160 # ----------------------------------------------------
2161 # Similar, but perform shell substitutions $ ` \ once on VALUE, as
2162 # in an unquoted here-doc.
2163 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([_$0], $@)])
2165 # _AC_DEFINE_UNQUOTED(STRING)
2166 # ---------------------------
2167 # Append the pre-expanded STRING and a newline to confdefs.h, as if
2168 # with an unquoted here-doc, but avoiding a fork in the common case of
2169 # no backslash, no command substitution, no complex variable
2170 # substitution (taking into account quadrigraphs as well). Also
2171 # avoid AS_ECHO if "#" is present to avoid confusing m4 with comments,
2172 # but quadrigraphs are fine in that case.
2173 m4_define([_AC_DEFINE_UNQUOTED],
2174 [m4_if(m4_bregexp([$1], [#\|\\\|`\|\(\$\|@S|@\)\((|{|@{:@\)]), [-1],
2175 [AS_ECHO(["AS_ESCAPE([$1], [""])"]) >>confdefs.h],
2176 [cat >>confdefs.h <<_ACEOF
2181 # _AC_DEFINE_Q(MACRO, VARIABLE, [VALUE], [DESCRIPTION])
2182 # -----------------------------------------------------
2183 # Internal function that performs common elements of AC_DEFINE{,_UNQUOTED}.
2184 # MACRO must take one argument, which is the fully expanded string to
2185 # append to confdefs.h as if by a possibly-quoted here-doc.
2187 # m4_index is roughly 5 to 8 times faster than m4_bpatsubst, so we use
2188 # m4_format rather than regex to grab prefix up to first (). AC_name
2189 # is defined with over-quotation, so that we can avoid m4_defn; this
2190 # is only safe because the name should not contain $.
2192 # Guarantee a match in m4_index, so as to avoid a bug with precision
2193 # -1 in m4_format in older m4.
2194 m4_define([_AC_DEFINE_Q],
2195 [m4_pushdef([AC_name], m4_format([[[%.*s]]], m4_index([$2(], [(]), [$2]))]dnl
2196 [AC_DEFINE_TRACE(AC_name)]dnl
2197 [m4_cond([m4_index([$3], [
2199 [m4_bregexp([[$3]], [[^\\]
2201 [m4_warn([syntax], [AC_DEFINE]m4_if([$1], [_AC_DEFINE], [],
2202 [[_UNQUOTED]])[: `$3' is not a valid preprocessor define value])])]dnl
2203 [m4_ifval([$4], [AH_TEMPLATE(AC_name, [$4])
2204 ])_m4_popdef([AC_name])]dnl
2205 [$1(m4_expand([[@%:@define] $2 ]m4_if([$#], 2, 1,
2206 [$3], [], [/**/], [[$3]])))
2211 ## -------------------------- ##
2212 ## Setting output variables. ##
2213 ## -------------------------- ##
2216 # AC_SUBST_TRACE(VARIABLE)
2217 # ------------------------
2218 # This macro is used with --trace to collect the list of substituted variables.
2219 m4_define([AC_SUBST_TRACE])
2222 # AC_SUBST(VARIABLE, [VALUE])
2223 # ---------------------------
2224 # Create an output variable from a shell VARIABLE. If VALUE is given
2225 # assign it to VARIABLE. Use `""' if you want to set VARIABLE to an
2226 # empty value, not an empty second argument.
2228 m4_define([AC_SUBST],
2229 [AS_IDENTIFIER_IF([$1], [],
2230 [m4_fatal([$0: `$1' is not a valid shell variable name])])]dnl
2231 [AC_SUBST_TRACE([$1])]dnl
2232 [m4_pattern_allow([^$1$])]dnl
2233 [m4_ifvaln([$2], [[$1]=$2])[]]dnl
2234 [m4_set_add([_AC_SUBST_VARS], [$1])])# AC_SUBST
2237 # AC_SUBST_FILE(VARIABLE)
2238 # -----------------------
2239 # Read the comments of the preceding macro.
2240 m4_define([AC_SUBST_FILE],
2241 [m4_pattern_allow([^$1$])dnl
2242 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2247 ## --------------------------------------- ##
2248 ## Printing messages at autoconf runtime. ##
2249 ## --------------------------------------- ##
2251 # In fact, I think we should promote the use of m4_warn and m4_fatal
2252 # directly. This will also avoid to some people to get it wrong
2253 # between AC_FATAL and AC_MSG_ERROR.
2256 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2257 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2258 # --------------------------------
2259 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2260 m4_define([AC_FATAL], [m4_fatal($@)])
2263 # AC_WARNING(MESSAGE)
2264 # -------------------
2265 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2267 m4_define([AC_WARNING],
2268 [AC_DIAGNOSE([syntax], [$1])])
2273 ## ---------------------------------------- ##
2274 ## Printing messages at configure runtime. ##
2275 ## ---------------------------------------- ##
2278 # AC_MSG_CHECKING(FEATURE)
2279 # ------------------------
2280 m4_define([AC_MSG_CHECKING],
2281 [{ _AS_ECHO_LOG([checking $1])
2282 _AS_ECHO_N([checking $1... ]); }dnl
2286 # AC_MSG_RESULT(RESULT)
2287 # ---------------------
2288 m4_define([AC_MSG_RESULT],
2289 [{ _AS_ECHO_LOG([result: $1])
2290 _AS_ECHO([$1]); }dnl
2294 # AC_MSG_WARN(PROBLEM)
2295 # AC_MSG_NOTICE(STRING)
2296 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2297 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2298 # ----------------------------------------
2299 m4_copy([AS_WARN], [AC_MSG_WARN])
2300 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2301 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2302 m4_define([AC_MSG_FAILURE],
2303 [{ AS_MESSAGE([error: in `$ac_pwd':], 2)
2305 See `config.log' for more details], [$2]); }])
2308 # _AC_MSG_LOG_CONFTEST
2309 # --------------------
2310 m4_define([_AC_MSG_LOG_CONFTEST],
2311 [AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD
2312 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2316 # AU::AC_CHECKING(FEATURE)
2317 # ------------------------
2318 AU_DEFUN([AC_CHECKING],
2319 [AS_MESSAGE([checking $1...])])
2322 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2323 # ----------------------------------
2324 # No escaping, so it performed also backtick substitution.
2325 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2326 [_AS_ECHO_UNQUOTED([$as_me:${as_lineno-$LINENO}: result: $1], AS_MESSAGE_LOG_FD)
2327 _AS_ECHO_UNQUOTED([$1])[]dnl
2331 # AU::AC_VERBOSE(STRING)
2332 # ----------------------
2333 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2340 ## ---------------------------- ##
2341 ## Compiler-running mechanics. ##
2342 ## ---------------------------- ##
2345 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2346 # ----------------------------------
2347 # Eval COMMAND, save the exit status in ac_status, and log it. The return
2348 # code is 0 if COMMAND succeeded, so that it can be used directly in AS_IF
2350 AC_DEFUN([_AC_RUN_LOG],
2351 [{ { $2; } >&AS_MESSAGE_LOG_FD
2352 ($1) 2>&AS_MESSAGE_LOG_FD
2354 _AS_ECHO_LOG([\$? = $ac_status])
2355 test $ac_status = 0; }])
2358 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2359 # -----------------------------------------
2360 # Run COMMAND, save its stderr into conftest.err, save the exit status
2361 # in ac_status, and log it. Don't forget to clean up conftest.err after
2363 # Note that when tracing, most shells will leave the traces in stderr
2364 # starting with "+": that's what this macro tries to address.
2365 # The return code is 0 if COMMAND succeeded, so that it can be used directly
2366 # in AS_IF constructs.
2367 AC_DEFUN([_AC_RUN_LOG_STDERR],
2368 [{ { $2; } >&AS_MESSAGE_LOG_FD
2371 if test -s conftest.err; then
2372 grep -v '^ *+' conftest.err >conftest.er1
2373 cat conftest.er1 >&AS_MESSAGE_LOG_FD
2374 mv -f conftest.er1 conftest.err
2376 _AS_ECHO_LOG([\$? = $ac_status])
2377 test $ac_status = 0; }])
2380 # _AC_RUN_LOG_LIMIT(COMMAND, LOG-COMMANDS, [LINES])
2381 # -------------------------------------------------
2382 # Like _AC_RUN_LOG, but only log LINES lines from stderr,
2383 # defaulting to 10 lines.
2384 AC_DEFUN([_AC_RUN_LOG_LIMIT],
2385 [{ { $2; } >&AS_MESSAGE_LOG_FD
2388 if test -s conftest.err; then
2389 sed 'm4_default([$3], [10])a\
2390 ... rest of stderr output deleted ...
2391 m4_default([$3], [10])q' conftest.err >conftest.er1
2392 cat conftest.er1 >&AS_MESSAGE_LOG_FD
2394 rm -f conftest.er1 conftest.err
2395 _AS_ECHO_LOG([\$? = $ac_status])
2396 test $ac_status = 0; }])
2399 # _AC_DO_ECHO(COMMAND)
2400 # --------------------
2401 # Echo COMMAND. This is designed to be used just before evaluating COMMAND.
2402 AC_DEFUN([_AC_DO_ECHO],
2403 [m4_if([$1], [$ac_try], [], [ac_try="$1"
2405 dnl If the string contains '\"', '`', or '\\', then just echo it rather
2406 dnl than expanding it. This is a hack, but it is safer, while also
2407 dnl typically expanding simple substrings like '$CC', which is what we want.
2409 dnl Much of this macro body is quoted, to work around misuses like
2410 dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
2411 dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
2412 dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
2413 dnl underquoting misuses, such as
2414 dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
2415 dnl We normally wouldn't bother with this kind of workaround for invalid code
2416 dnl but this change was put in just before Autoconf 2.60 and we wanted to
2417 dnl minimize the integration hassle.
2418 [[case "(($ac_try" in
2419 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
2420 *) ac_try_echo=$ac_try;;
2422 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""]
2423 AS_ECHO(["$ac_try_echo"])])
2427 # Eval COMMAND, save the exit status in ac_status, and log it.
2428 # For internal use only.
2430 [_AC_RUN_LOG([eval "$1"],
2431 [_AC_DO_ECHO([$1])])])
2434 # _AC_DO_STDERR(COMMAND)
2435 # ----------------------
2436 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2437 AC_DEFUN([_AC_DO_STDERR],
2438 [_AC_RUN_LOG_STDERR([eval "$1"],
2439 [_AC_DO_ECHO([$1])])])
2442 # _AC_DO_VAR(VARIABLE)
2443 # --------------------
2444 # Evaluate "$VARIABLE", which should be a valid shell command.
2445 # The purpose of this macro is to write "configure:123: command line"
2446 # into config.log for every test run.
2447 AC_DEFUN([_AC_DO_VAR],
2451 # _AC_DO_TOKENS(COMMAND)
2452 # ----------------------
2453 # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
2454 # tokens of the shell command language.
2455 AC_DEFUN([_AC_DO_TOKENS],
2457 _AC_DO([$ac_try]); }])
2460 # _AC_DO_LIMIT(COMMAND, [LINES])
2461 # ------------------------------
2462 # Like _AC_DO, but limit the amount of stderr lines logged to LINES.
2463 # For internal use only.
2464 AC_DEFUN([_AC_DO_LIMIT],
2465 [_AC_RUN_LOG_LIMIT([eval "$1"],
2466 [_AC_DO_ECHO([$1])], [$2])])
2471 # Eval COMMAND, save the exit status in ac_status, and log it.
2472 # Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
2473 # It is present only for backward compatibility with previous Autoconf versions.
2474 AC_DEFUN([_AC_EVAL],
2475 [_AC_RUN_LOG([eval $1],
2476 [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])])
2479 # _AC_EVAL_STDERR(COMMAND)
2480 # ------------------------
2481 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2482 # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
2483 # It is present only for backward compatibility with previous Autoconf versions.
2484 AC_DEFUN([_AC_EVAL_STDERR],
2485 [_AC_RUN_LOG_STDERR([eval $1],
2486 [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])])
2489 # AC_TRY_EVAL(VARIABLE)
2490 # ---------------------
2491 # Evaluate $VARIABLE, which should be a valid shell command.
2492 # The purpose of this macro is to write "configure:123: command line"
2493 # into config.log for every test run.
2495 # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
2496 # undocumented, and should not be used.
2497 # They may be removed or their API changed in a future release.
2498 # Autoconf itself no longer uses these two macros; they are present
2499 # only for backward compatibility with previous versions of Autoconf.
2500 # Not every shell command will work due to problems with eval
2501 # and quoting, and the rules for exactly what does work are tricky.
2502 # Worse, due to double-expansion during evaluation, arbitrary unintended
2503 # shell commands could be executed in some situations.
2504 AC_DEFUN([AC_TRY_EVAL],
2508 # AC_TRY_COMMAND(COMMAND)
2509 # -----------------------
2510 # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
2511 # tokens of the shell command language.
2512 # This macro should not be used; see the comments under AC_TRY_EVAL for why.
2513 AC_DEFUN([AC_TRY_COMMAND],
2515 _AC_EVAL([$ac_try]); }])
2518 # AC_RUN_LOG(COMMAND)
2519 # -------------------
2520 AC_DEFUN([AC_RUN_LOG],
2522 [AS_ECHO(["$as_me:${as_lineno-$LINENO}: AS_ESCAPE([$1])"])])])
2527 ## ------------------------ ##
2528 ## Examining declarations. ##
2529 ## ------------------------ ##
2532 # _AC_PREPROC_IFELSE_BODY
2533 # -----------------------
2534 # Shell function body for _AC_PREPROC_IFELSE.
2535 m4_define([_AC_PREPROC_IFELSE_BODY],
2536 [ AS_LINENO_PUSH([$[]1])
2537 AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) > conftest.i && {
2538 test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2539 test ! -s conftest.err
2542 [_AC_MSG_LOG_CONFTEST
2545 AS_SET_STATUS([$ac_retval])
2546 ])# _AC_PREPROC_IFELSE_BODY
2549 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2550 # ----------------------------------------------------------------
2551 # Try to preprocess PROGRAM.
2553 # This macro can be used during the selection of a preprocessor.
2554 # eval is necessary to expand ac_cpp.
2555 AC_DEFUN([_AC_PREPROC_IFELSE],
2556 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_cpp],
2557 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_cpp], [LINENO],
2558 [Try to preprocess conftest.$ac_ext, and return whether this succeeded.])],
2560 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2561 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_cpp "$LINENO"], [$2], [$3])
2562 rm -f conftest.err conftest.i[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2563 ])# _AC_PREPROC_IFELSE
2565 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2566 # ---------------------------------------------------------------
2567 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2568 # current language was checked for, hence do not use this macro in macros
2569 # looking for a preprocessor.
2570 AC_DEFUN([AC_PREPROC_IFELSE],
2571 [AC_LANG_PREPROC_REQUIRE()dnl
2572 _AC_PREPROC_IFELSE($@)])
2575 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2576 # ---------------------------------------------------------
2577 # AC_TRY_CPP is used to check whether particular header files exist.
2578 # (But it actually tests whether INCLUDES produces no CPP errors.)
2580 # INCLUDES are not defaulted and are double quoted.
2581 AU_DEFUN([AC_TRY_CPP],
2582 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2585 # AC_EGREP_CPP(PATTERN, PROGRAM,
2586 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2587 # ------------------------------------------------------
2588 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2589 # come early, it is not included in AC_BEFORE checks.
2590 AC_DEFUN([AC_EGREP_CPP],
2591 [AC_LANG_PREPROC_REQUIRE()dnl
2592 AC_REQUIRE([AC_PROG_EGREP])dnl
2593 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2594 AS_IF([dnl eval is necessary to expand ac_cpp.
2595 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2596 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2597 dnl Quote $1 to prevent m4 from eating character classes
2598 $EGREP "[$1]" >/dev/null 2>&1],
2605 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2606 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2607 # ---------------------------------------------------------
2608 AC_DEFUN([AC_EGREP_HEADER],
2616 ## ------------------ ##
2617 ## Examining syntax. ##
2618 ## ------------------ ##
2620 # _AC_COMPILE_IFELSE_BODY
2621 # -----------------------
2622 # Shell function body for _AC_COMPILE_IFELSE.
2623 m4_define([_AC_COMPILE_IFELSE_BODY],
2624 [ AS_LINENO_PUSH([$[]1])
2625 rm -f conftest.$ac_objext
2626 AS_IF([_AC_DO_STDERR($ac_compile) && {
2627 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2628 test ! -s conftest.err
2629 } && test -s conftest.$ac_objext],
2631 [_AC_MSG_LOG_CONFTEST
2634 AS_SET_STATUS([$ac_retval])
2635 ])# _AC_COMPILE_IFELSE_BODY
2638 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2639 # ----------------------------------------------------------------
2640 # Try to compile PROGRAM.
2641 # This macro can be used during the selection of a compiler.
2642 AC_DEFUN([_AC_COMPILE_IFELSE],
2643 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_compile],
2644 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_compile], [LINENO],
2645 [Try to compile conftest.$ac_ext, and return whether this succeeded.])],
2647 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2648 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_compile "$LINENO"], [$2], [$3])
2649 rm -f core conftest.err conftest.$ac_objext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2650 ])# _AC_COMPILE_IFELSE
2653 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2654 # ---------------------------------------------------------------
2655 # Try to compile PROGRAM. Requires that the compiler for the current
2656 # language was checked for, hence do not use this macro in macros looking
2658 AC_DEFUN([AC_COMPILE_IFELSE],
2659 [AC_LANG_COMPILER_REQUIRE()dnl
2660 _AC_COMPILE_IFELSE($@)])
2663 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2664 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2665 # ---------------------------------------------------
2666 AU_DEFUN([AC_TRY_COMPILE],
2667 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2671 ## --------------------- ##
2672 ## Examining libraries. ##
2673 ## --------------------- ##
2676 # _AC_LINK_IFELSE_BODY
2677 # --------------------
2678 # Shell function body for _AC_LINK_IFELSE.
2679 m4_define([_AC_LINK_IFELSE_BODY],
2680 [ AS_LINENO_PUSH([$[]1])
2681 rm -f conftest.$ac_objext conftest$ac_exeext
2682 AS_IF([_AC_DO_STDERR($ac_link) && {
2683 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2684 test ! -s conftest.err
2685 } && test -s conftest$ac_exeext && {
2686 test "$cross_compiling" = yes ||
2687 AS_TEST_X([conftest$ac_exeext])
2690 [_AC_MSG_LOG_CONFTEST
2692 # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
2693 # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
2694 # interfere with the next link command; also delete a directory that is
2695 # left behind by Apple's compiler. We do this before executing the actions.
2696 rm -rf conftest.dSYM conftest_ipa8_conftest.oo
2698 AS_SET_STATUS([$ac_retval])
2699 ])# _AC_LINK_IFELSE_BODY
2702 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2703 # -------------------------------------------------------------
2704 # Try to link PROGRAM.
2705 # This macro can be used during the selection of a compiler.
2707 # Test that resulting file is executable; see the problem reported by mwoehlke
2708 # in <https://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00048.html>.
2709 # But skip the test when cross-compiling, to prevent problems like the one
2710 # reported by Chris Johns in
2711 # <https://lists.gnu.org/archive/html/autoconf/2007-03/msg00085.html>.
2713 AC_DEFUN([_AC_LINK_IFELSE],
2714 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_link],
2715 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_link], [LINENO],
2716 [Try to link conftest.$ac_ext, and return whether this succeeded.])],
2718 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2719 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_link "$LINENO"], [$2], [$3])
2720 rm -f core conftest.err conftest.$ac_objext \
2721 conftest$ac_exeext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2725 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2726 # ------------------------------------------------------------
2727 # Try to link PROGRAM. Requires that the compiler for the current
2728 # language was checked for, hence do not use this macro in macros looking
2730 AC_DEFUN([AC_LINK_IFELSE],
2731 [AC_LANG_COMPILER_REQUIRE()dnl
2732 _AC_LINK_IFELSE($@)])
2735 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2736 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2737 # ------------------------------------------------
2738 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2739 AU_DEFUN([AC_TRY_LINK],
2740 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2743 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2744 # ACTION-IF-TRUE, [ACTION-IF-FALSE])
2745 # ---------------------------------------------------
2746 AU_DEFUN([AC_COMPILE_CHECK],
2747 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2748 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2753 ## ------------------------------- ##
2754 ## Checking for runtime features. ##
2755 ## ------------------------------- ##
2758 # _AC_RUN_IFELSE_BODY
2759 # -------------------
2760 # Shell function body for _AC_RUN_IFELSE.
2761 m4_define([_AC_RUN_IFELSE_BODY],
2762 [ AS_LINENO_PUSH([$[]1])
2763 AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
2765 [AS_ECHO(["$as_me: program exited with status $ac_status"]) >&AS_MESSAGE_LOG_FD
2766 _AC_MSG_LOG_CONFTEST
2767 ac_retval=$ac_status])
2768 rm -rf conftest.dSYM conftest_ipa8_conftest.oo
2770 AS_SET_STATUS([$ac_retval])
2771 ])# _AC_RUN_IFELSE_BODY
2774 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2775 # ------------------------------------------------------------
2776 # Compile, link, and run.
2777 # This macro can be used during the selection of a compiler.
2778 # We also remove conftest.o as if the compilation fails, some compilers
2779 # don't remove it. We remove gmon.out and bb.out, which may be
2780 # created during the run if the program is built with profiling support.
2781 AC_DEFUN([_AC_RUN_IFELSE],
2782 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_run],
2783 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_run], [LINENO],
2784 [Try to run conftest.$ac_ext, and return whether this succeeded.
2785 Assumes that executables *can* be run.])],
2787 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2788 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_run "$LINENO"], [$2], [$3])
2789 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
2790 conftest.$ac_objext conftest.beam[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2793 # AC_RUN_IFELSE(PROGRAM,
2794 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2795 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2796 # ----------------------------------------------------------
2797 # Compile, link, and run. Requires that the compiler for the current
2798 # language was checked for, hence do not use this macro in macros looking
2800 AC_DEFUN([AC_RUN_IFELSE],
2801 [AC_LANG_COMPILER_REQUIRE()dnl
2803 [AC_DIAGNOSE([cross],
2804 [$0 called without default to allow cross compiling])])dnl
2805 AS_IF([test "$cross_compiling" = yes],
2807 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2808 [_AC_RUN_IFELSE($@)])
2812 # AC_TRY_RUN(PROGRAM,
2813 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2814 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2815 # -------------------------------------------------------
2816 AU_DEFUN([AC_TRY_RUN],
2817 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2821 ## ------------------------------------- ##
2822 ## Checking for the existence of files. ##
2823 ## ------------------------------------- ##
2825 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2826 # -------------------------------------------------------------
2828 # Check for the existence of FILE.
2829 AC_DEFUN([AC_CHECK_FILE],
2830 [AC_DIAGNOSE([cross],
2831 [cannot check for file existence when cross compiling])dnl
2832 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2833 AC_CACHE_CHECK([for $1], [ac_File],
2834 [test "$cross_compiling" = yes &&
2835 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2836 if test -r "$1"; then
2837 AS_VAR_SET([ac_File], [yes])
2839 AS_VAR_SET([ac_File], [no])
2841 AS_VAR_IF([ac_File], [yes], [$2], [$3])
2842 AS_VAR_POPDEF([ac_File])dnl
2846 # _AC_CHECK_FILES(FILE)
2847 # ---------------------
2848 # Helper to AC_CHECK_FILES, which generates two of the three arguments
2849 # to AC_CHECK_FILE based on FILE.
2850 m4_define([_AC_CHECK_FILES],
2851 [[$1], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1],
2852 [Define to 1 if you have the file `$1'.])]])
2855 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2856 # -----------------------------------------------------------------
2857 # For each word in the whitespace-separated FILE list, perform either
2858 # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND. For files that exist, also
2859 # provide the preprocessor variable HAVE_FILE.
2860 AC_DEFUN([AC_CHECK_FILES],
2861 [m4_map_args_w([$1], [AC_CHECK_FILE(_$0(], [)[$2], [$3])])])
2864 ## ------------------------------- ##
2865 ## Checking for declared symbols. ##
2866 ## ------------------------------- ##
2869 # _AC_UNDECLARED_WARNING
2870 # ----------------------
2871 # Set ac_[]_AC_LANG_ABBREV[]_decl_warn_flag=yes if the compiler uses a warning,
2872 # not a more-customary error, to report some undeclared identifiers. Fail when
2873 # an affected compiler warns also on valid input. _AC_PROG_PREPROC_WORKS_IFELSE
2874 # solves a related problem.
2875 AC_DEFUN([_AC_UNDECLARED_WARNING],
2876 [# The Clang compiler raises a warning for an undeclared identifier that matches
2877 # a compiler builtin function. All extant Clang versions are affected, as of
2878 # Clang 3.6.0. Test a builtin known to every version. This problem affects the
2879 # C and Objective C languages, but Clang does report an error under C++ and
2882 # Passing -fno-builtin to the compiler would suppress this problem. That
2883 # strategy would have the advantage of being insensitive to stray warnings, but
2884 # it would make tests less realistic.
2885 AC_CACHE_CHECK([how $[]_AC_CC[] reports undeclared, standard C functions],
2886 [ac_cv_[]_AC_LANG_ABBREV[]_decl_report],
2887 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [(void) strchr;])],
2888 [AS_IF([test -s conftest.err], [dnl
2889 # For AC_CHECK_DECL to react to warnings, the compiler must be silent on
2890 # valid AC_CHECK_DECL input. No library function is consistently available
2891 # on freestanding implementations, so test against a dummy declaration.
2892 # Include always-available headers on the off chance that they somehow
2894 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([dnl
2899 extern void ac_decl (int, char *);],
2900 [@%:@ifdef __cplusplus
2901 (void) ac_decl ((int) 0, (char *) 0);
2907 [AS_IF([test -s conftest.err],
2908 [AC_MSG_FAILURE([cannot detect from compiler exit status or warnings])],
2909 [ac_cv_[]_AC_LANG_ABBREV[]_decl_report=warning])],
2910 [AC_MSG_FAILURE([cannot compile a simple declaration test])])],
2911 [AC_MSG_FAILURE([compiler does not report undeclared identifiers])])],
2912 [ac_cv_[]_AC_LANG_ABBREV[]_decl_report=error])])
2914 case $ac_cv_[]_AC_LANG_ABBREV[]_decl_report in
2915 warning) ac_[]_AC_LANG_ABBREV[]_decl_warn_flag=yes ;;
2916 *) ac_[]_AC_LANG_ABBREV[]_decl_warn_flag= ;;
2918 ])# _AC_UNDECLARED_WARNING
2920 # _AC_CHECK_DECL_BODY
2921 # -------------------
2922 # Shell function body for AC_CHECK_DECL.
2923 m4_define([_AC_CHECK_DECL_BODY],
2924 [ AS_LINENO_PUSH([$[]1])
2925 # Initialize each $ac_[]_AC_LANG_ABBREV[]_decl_warn_flag once.
2926 AC_DEFUN([_AC_UNDECLARED_WARNING_]_AC_LANG_ABBREV,
2927 [_AC_UNDECLARED_WARNING])dnl
2928 AC_REQUIRE([_AC_UNDECLARED_WARNING_]_AC_LANG_ABBREV)dnl
2929 [as_decl_name=`echo $][2|sed 's/ *(.*//'`]
2930 [as_decl_use=`echo $][2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`]
2931 AC_CACHE_CHECK([whether $as_decl_name is declared], [$[]3],
2932 [ac_save_werror_flag=$ac_[]_AC_LANG_ABBREV[]_werror_flag
2933 ac_[]_AC_LANG_ABBREV[]_werror_flag="$ac_[]_AC_LANG_ABBREV[]_decl_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag"
2934 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]4],
2935 [@%:@ifndef $[]as_decl_name
2936 @%:@ifdef __cplusplus
2937 (void) $[]as_decl_use;
2939 (void) $[]as_decl_name;
2943 [AS_VAR_SET([$[]3], [yes])],
2944 [AS_VAR_SET([$[]3], [no])])])
2945 ac_[]_AC_LANG_ABBREV[]_werror_flag=$ac_save_werror_flag
2947 ])# _AC_CHECK_DECL_BODY
2949 # AC_CHECK_DECL(SYMBOL,
2950 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2951 # [INCLUDES = DEFAULT-INCLUDES])
2952 # -------------------------------------------------------
2953 # Check whether SYMBOL (a function, variable, or constant) is declared.
2954 AC_DEFUN([AC_CHECK_DECL],
2955 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_check_decl],
2956 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_check_decl],
2957 [LINENO SYMBOL VAR INCLUDES],
2958 [Tests whether SYMBOL is declared in INCLUDES, setting cache variable
2959 VAR accordingly.])],
2961 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])]dnl
2962 [ac_fn_[]_AC_LANG_ABBREV[]_check_decl ]dnl
2963 ["$LINENO" "$1" "ac_Symbol" "AS_ESCAPE([AC_INCLUDES_DEFAULT([$4])], [""])"
2964 AS_VAR_IF([ac_Symbol], [yes], [$2], [$3])
2965 AS_VAR_POPDEF([ac_Symbol])dnl
2969 # _AC_CHECK_DECLS(SYMBOL, ACTION-IF_FOUND, ACTION-IF-NOT-FOUND,
2971 # -------------------------------------------------------------
2972 # Helper to AC_CHECK_DECLS, which generates the check for a single
2973 # SYMBOL with INCLUDES, performs the AC_DEFINE, then expands
2974 # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND.
2975 m4_define([_AC_CHECK_DECLS],
2976 [AC_CHECK_DECL([$1], [ac_have_decl=1], [ac_have_decl=0], [$4])]dnl
2977 [AC_DEFINE_UNQUOTED(AS_TR_CPP(m4_bpatsubst(HAVE_DECL_[$1],[ *(.*])),
2979 [Define to 1 if you have the declaration of `$1',
2980 and to 0 if you don't.])]dnl
2981 [m4_ifvaln([$2$3], [AS_IF([test $ac_have_decl = 1], [$2], [$3])])])
2983 # AC_CHECK_DECLS(SYMBOLS,
2984 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2985 # [INCLUDES = DEFAULT-INCLUDES])
2986 # --------------------------------------------------------
2987 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2988 # documentation for a detailed explanation of this difference with
2989 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2990 AC_DEFUN([AC_CHECK_DECLS],
2991 [m4_map_args_sep([_$0(], [, [$2], [$3], [$4])], [], $1)])
2994 # _AC_CHECK_DECL_ONCE(SYMBOL)
2995 # ---------------------------
2996 # Check for a single SYMBOL once.
2997 m4_define([_AC_CHECK_DECL_ONCE],
2998 [AC_DEFUN([_AC_Check_Decl_$1], [_AC_CHECK_DECLS([$1])])]dnl
2999 [AC_REQUIRE([_AC_Check_Decl_$1])])
3001 # AC_CHECK_DECLS_ONCE(SYMBOLS)
3002 # ----------------------------
3003 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
3004 AC_DEFUN([AC_CHECK_DECLS_ONCE],
3005 [m4_map_args_sep([_AC_CHECK_DECL_ONCE(], [)], [], $1)])
3009 ## ---------------------------------- ##
3010 ## Replacement of library functions. ##
3011 ## ---------------------------------- ##
3014 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
3015 # -----------------------------
3016 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
3017 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
3018 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
3021 # AC_LIBSOURCE(FILE-NAME)
3022 # -----------------------
3023 # Announce we might need the file `FILE-NAME'.
3024 m4_define([AC_LIBSOURCE], [])
3027 # AC_LIBSOURCES([FILE-NAME1, ...])
3028 # --------------------------------
3029 # Announce we might need these files.
3030 AC_DEFUN([AC_LIBSOURCES],
3031 [m4_map_args([AC_LIBSOURCE], $1)])
3034 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
3035 # --------------------------------------------
3036 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
3037 m4_define([_AC_LIBOBJ],
3038 [case " $LIB@&t@OBJS " in
3039 *" $1.$ac_objext "* ) ;;
3040 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
3045 # AC_LIBOBJ(FILE-NAME-NOEXT)
3046 # --------------------------
3047 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
3048 AC_DEFUN([AC_LIBOBJ],
3049 [_AC_LIBOBJ([$1])]dnl
3050 [AS_LITERAL_WORD_IF([$1], [AC_LIBSOURCE([$1.c])],
3051 [AC_DIAGNOSE([syntax], [$0($1): you should use literals])])])
3054 # _AC_LIBOBJS_NORMALIZE
3055 # ---------------------
3056 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
3057 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
3058 # Used with AC_CONFIG_COMMANDS_PRE.
3059 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
3062 m4_ifndef([AM_C_PROTOTYPES], [U=
3064 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
3065 # 1. Remove the extension, and $U if already installed.
3066 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
3067 ac_i=`AS_ECHO(["$ac_i"]) | sed "$ac_script"`
3068 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
3069 # will be set to the directory where LIBOBJS objects are built.
3070 AS_VAR_APPEND([ac_libobjs], [" \${LIBOBJDIR}$ac_i\$U.$ac_objext"])
3071 AS_VAR_APPEND([ac_ltlibobjs], [" \${LIBOBJDIR}$ac_i"'$U.lo'])
3073 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
3074 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
3078 ## ----------------------------------- ##
3079 ## Checking compiler characteristics. ##
3080 ## ----------------------------------- ##
3083 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS],
3085 # ---------------------------------------------------------------------
3086 # Compute the integer EXPRESSION and store the result in the VARIABLE.
3087 # Works OK if cross compiling, but assumes twos-complement arithmetic.
3088 m4_define([_AC_COMPUTE_INT_COMPILE],
3089 [# Depending upon the size, compute the lo and hi bounds.
3090 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
3093 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
3094 [ac_hi=$ac_mid; break],
3095 [AS_VAR_ARITH([ac_lo], [$ac_mid + 1])
3096 if test $ac_lo -le $ac_mid; then
3100 AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid + 1])])
3102 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
3105 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
3106 [ac_lo=$ac_mid; break],
3107 [AS_VAR_ARITH([ac_hi], ['(' $ac_mid ')' - 1])
3108 if test $ac_mid -le $ac_hi; then
3112 AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid])])
3115 # Binary search between lo and hi bounds.
3116 while test "x$ac_lo" != "x$ac_hi"; do
3117 AS_VAR_ARITH([ac_mid], ['(' $ac_hi - $ac_lo ')' / 2 + $ac_lo])
3118 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
3120 [AS_VAR_ARITH([ac_lo], ['(' $ac_mid ')' + 1])])
3122 case $ac_lo in @%:@((
3123 ?*) AS_VAR_SET([$2], [$ac_lo]); $4 ;;
3126 ])# _AC_COMPUTE_INT_COMPILE
3129 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS],
3131 # -----------------------------------------------------------------
3132 # Store the evaluation of the integer EXPRESSION in VARIABLE.
3134 # AC_LANG_INT_SAVE intentionally does not end the file in a newline, so
3135 # we must add one to make it a text file before passing it to read.
3136 m4_define([_AC_COMPUTE_INT_RUN],
3137 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
3138 [echo >>conftest.val; read $2 <conftest.val; $4], [$5])
3140 ])# _AC_COMPUTE_INT_RUN
3143 # _AC_COMPUTE_INT_BODY
3144 # --------------------
3145 # Shell function body for AC_COMPUTE_INT.
3146 m4_define([_AC_COMPUTE_INT_BODY],
3147 [ AS_LINENO_PUSH([$[]1])
3148 if test "$cross_compiling" = yes; then
3149 _AC_COMPUTE_INT_COMPILE([$[]2], [$[]3], [$[]4],
3150 [ac_retval=0], [ac_retval=1])
3152 _AC_COMPUTE_INT_RUN([$[]2], [$[]3], [$[]4],
3153 [ac_retval=0], [ac_retval=1])
3156 AS_SET_STATUS([$ac_retval])
3157 ])# _AC_COMPUTE_INT_BODY
3159 # AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS])
3160 # ----------------------------------------------------------
3161 # Store into the shell variable VARIABLE the value of the integer C expression
3162 # EXPRESSION. The value should fit in an initializer in a C variable of type
3163 # `signed long'. If no PROLOGUE are specified, the default includes are used.
3164 # IF-FAILS is evaluated if the value cannot be found (which includes the
3165 # case of cross-compilation, if EXPRESSION is not computable at compile-time.
3166 AC_DEFUN([AC_COMPUTE_INT],
3167 [AC_LANG_COMPILER_REQUIRE()]dnl
3168 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_compute_int],
3169 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_compute_int],
3170 [LINENO EXPR VAR INCLUDES],
3171 [Tries to find the compile-time value of EXPR in a program that includes
3172 INCLUDES, setting VAR accordingly. Returns whether the value could
3175 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_compute_int "$LINENO" "$2" "$1" ]dnl
3176 ["AS_ESCAPE([$3], [""])"],
3180 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
3181 # -----------------------------------------------------------
3182 # FIXME: this private interface was used by several packages.
3183 # Give them time to transition to AC_COMPUTE_INT and then delete this one.
3184 AC_DEFUN([_AC_COMPUTE_INT],
3185 [AC_COMPUTE_INT([$2], [$1], [$3], [$4])
3186 AC_DIAGNOSE([obsolete],
3187 [The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a
3188 future version or Autoconf. Hence, it is suggested that you use
3189 instead the public AC_COMPUTE_INT macro. Note that the arguments are
3190 slightly different between the two.])dnl