1 # This file is part of Autoconf. -*- Autoconf -*-
2 # Parameterized macros.
3 m4_define([_AC_COPYRIGHT_YEARS], [
4 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
5 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
9 # This file is part of Autoconf. This program is free
10 # software; you can redistribute it and/or modify it under the
11 # terms of the GNU General Public License as published by the
12 # Free Software Foundation, either version 3 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # Under Section 7 of GPL version 3, you are granted additional
21 # permissions described in the Autoconf Configure Script Exception,
22 # version 3.0, as published by the Free Software Foundation.
24 # You should have received a copy of the GNU General Public License
25 # and a copy of the Autoconf Configure Script Exception along with
26 # this program; see the files COPYINGv3 and COPYING.EXCEPTION
27 # respectively. If not, see <http://www.gnu.org/licenses/>.
29 # Written by David MacKenzie, with help from
30 # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
31 # Roland McGrath, Noah Friedman, david d zuhn, and many others.
34 ## ---------------- ##
36 ## ---------------- ##
39 # We heavily use m4's diversions both for the initializations and for
40 # required macros (see AC_REQUIRE), because in both cases we have to
41 # issue high in `configure' something which is discovered late.
43 # KILL is only used to suppress output.
45 # The layers of `configure'. We let m4 undivert them by itself, when
46 # it reaches the end of `configure.ac'.
53 # Purpose of the script.
57 # Initialization of bottom layers.
60 # early initializations (defaults)
62 # initialization code, option handling loop.
65 # Handling `configure --help'.
67 # Help msg for AC_CANONICAL_*
69 # Help msg from AC_ARG_ENABLE.
71 # Help msg from AC_ARG_WITH.
73 # Help msg from AC_ARG_VAR.
75 # A small paragraph on the use of the variables.
77 # Tail of the handling of --help.
80 # Head of the handling of --version.
82 # FSF copyright notice for --version.
84 # User copyright notice for --version.
86 # Tail of the handling of --version.
92 # Tail of initialization code.
95 # the tests and output code
99 # _m4_divert(DIVERSION-NAME)
100 # --------------------------
101 # Convert a diversion name into its number. Otherwise, return
102 # DIVERSION-NAME which is supposed to be an actual diversion number.
103 # Of course it would be nicer to use m4_case here, instead of zillions
104 # of little macros, but it then takes twice longer to run `autoconf'!
114 # 3. HEADER-COPYRIGHT
117 m4_define([_m4_divert(DEFAULTS)], 10)
118 m4_define([_m4_divert(PARSE_ARGS)], 20)
120 m4_define([_m4_divert(HELP_BEGIN)], 100)
121 m4_define([_m4_divert(HELP_CANON)], 101)
122 m4_define([_m4_divert(HELP_ENABLE)], 102)
123 m4_define([_m4_divert(HELP_WITH)], 103)
124 m4_define([_m4_divert(HELP_VAR)], 104)
125 m4_define([_m4_divert(HELP_VAR_END)], 105)
126 m4_define([_m4_divert(HELP_END)], 106)
128 m4_define([_m4_divert(VERSION_BEGIN)], 200)
129 m4_define([_m4_divert(VERSION_FSF)], 201)
130 m4_define([_m4_divert(VERSION_USER)], 202)
131 m4_define([_m4_divert(VERSION_END)], 203)
133 m4_define([_m4_divert(SHELL_FN)], 250)
135 m4_define([_m4_divert(INIT_PREPARE)], 300)
139 # AC_DIVERT_PUSH(DIVERSION-NAME)
141 # ------------------------------
142 m4_copy([m4_divert_push],[AC_DIVERT_PUSH])
143 m4_copy([m4_divert_pop], [AC_DIVERT_POP])
147 ## ------------------------------------ ##
148 ## Defining/requiring Autoconf macros. ##
149 ## ------------------------------------ ##
152 # AC_DEFUN(NAME, EXPANSION)
153 # AC_DEFUN_ONCE(NAME, EXPANSION)
154 # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
156 # AC_PROVIDE(MACRO-NAME)
157 # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
158 # -----------------------------------------------------------
159 m4_copy([m4_defun], [AC_DEFUN])
160 m4_copy([m4_defun_once], [AC_DEFUN_ONCE])
161 m4_copy([m4_before], [AC_BEFORE])
162 m4_copy([m4_require], [AC_REQUIRE])
163 m4_copy([m4_provide], [AC_PROVIDE])
164 m4_copy([m4_provide_if], [AC_PROVIDE_IFELSE])
167 # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION])
168 # ------------------------------------------
169 m4_define([AC_OBSOLETE],
170 [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])])
174 ## ----------------------------- ##
175 ## Implementing shell functions. ##
176 ## ----------------------------- ##
179 # AC_REQUIRE_SHELL_FN(NAME-TO-CHECK, COMMENT, BODY, [DIVERSION = SHELL_FN]
180 # ------------------------------------------------------------------------
181 # Same as AS_REQUIRE_SHELL_FN except that the default diversion comes
182 # later in the script (speeding up configure --help and --version).
183 AC_DEFUN([AC_REQUIRE_SHELL_FN],
184 [AS_REQUIRE_SHELL_FN([$1], [$2], [$3], m4_default_quoted([$4], [SHELL_FN]))])
188 ## ----------------------------- ##
189 ## Implementing Autoconf loops. ##
190 ## ----------------------------- ##
193 # AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION)
194 # ------------------------------------------
195 AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]])
196 AC_DEFUN([AC_FOREACH], [m4_foreach_w($@)dnl
197 AC_DIAGNOSE([obsolete], [The macro `AC_FOREACH' is obsolete.
198 You should run autoupdate.])])
202 ## ----------------------------------- ##
203 ## Helping macros to display strings. ##
204 ## ----------------------------------- ##
207 # AU::AC_HELP_STRING(LHS, RHS, [COLUMN])
208 # --------------------------------------
209 AU_ALIAS([AC_HELP_STRING], [AS_HELP_STRING])
213 ## ---------------------------------------------- ##
214 ## Information on the package being Autoconf'ed. ##
215 ## ---------------------------------------------- ##
218 # It is suggested that the macros in this section appear before
219 # AC_INIT in `configure.ac'. Nevertheless, this is just stylistic,
220 # and from the implementation point of view, AC_INIT *must* be expanded
221 # beforehand: it puts data in diversions which must appear before the
222 # data provided by the macros of this section.
224 # The solution is to require AC_INIT in each of these macros. AC_INIT
225 # has the needed magic so that it can't be expanded twice.
229 # _AC_INIT_PACKAGE(PACKAGE-NAME, VERSION, BUG-REPORT, [TARNAME], [URL])
230 # ---------------------------------------------------------------------
231 m4_define([_AC_INIT_PACKAGE],
232 [AS_LITERAL_IF([$1], [], [m4_warn([syntax], [AC_INIT: not a literal: $1])])
233 AS_LITERAL_IF([$2], [], [m4_warn([syntax], [AC_INIT: not a literal: $2])])
234 AS_LITERAL_IF([$3], [], [m4_warn([syntax], [AC_INIT: not a literal: $3])])
235 m4_ifndef([AC_PACKAGE_NAME],
236 [m4_define([AC_PACKAGE_NAME], [$1])])
237 m4_ifndef([AC_PACKAGE_TARNAME],
238 [m4_define([AC_PACKAGE_TARNAME],
240 [m4_bpatsubst(m4_tolower(m4_bpatsubst([[$1]],
242 [[^_abcdefghijklmnopqrstuvwxyz0123456789]],
244 m4_ifndef([AC_PACKAGE_VERSION],
245 [m4_define([AC_PACKAGE_VERSION], [$2])])
246 m4_ifndef([AC_PACKAGE_STRING],
247 [m4_define([AC_PACKAGE_STRING], [$1 $2])])
248 m4_ifndef([AC_PACKAGE_BUGREPORT],
249 [m4_define([AC_PACKAGE_BUGREPORT], [$3])])
250 m4_ifndef([AC_PACKAGE_URL],
251 [m4_define([AC_PACKAGE_URL],
252 m4_if([$5], [], [m4_if(m4_index([$1], [GNU ]), [0],
253 [[http://www.gnu.org/software/]m4_defn([AC_PACKAGE_TARNAME])[/]])],
258 # AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER],
259 # [FILTER = m4_newline])
260 # ------------------------------------------------------
261 # Emit TEXT, a copyright notice, in the top of `configure' and in
262 # --version output. Macros in TEXT are evaluated once. Process
263 # the --version output through FILTER (m4_newline, m4_do, and
264 # m4_copyright_condense are common filters).
265 m4_define([AC_COPYRIGHT],
266 [AS_COPYRIGHT([$1])[]]dnl
267 [m4_divert_text(m4_default_quoted([$2], [VERSION_USER]),
268 [m4_default([$3], [m4_newline])([$1])])])# AC_COPYRIGHT
271 # AC_REVISION(REVISION-INFO)
272 # --------------------------
273 # The second quote in the translit is just to cope with font-lock-mode
274 # which sees the opening of a string.
275 m4_define([AC_REVISION],
276 [m4_divert_text([HEADER-REVISION],
277 [@%:@ From __file__ m4_translit([$1], [$""]).])dnl
283 ## ---------------------------------------- ##
284 ## Requirements over the Autoconf version. ##
285 ## ---------------------------------------- ##
288 # AU::AC_PREREQ(VERSION)
289 # ----------------------
290 # Update this `AC_PREREQ' statement to require the current version of
291 # Autoconf. But fail if ever this autoupdate is too old.
293 # Note that `m4_defn([m4_PACKAGE_VERSION])' below are expanded before
294 # calling `AU_DEFUN', i.e., it is hard coded. Otherwise it would be
295 # quite complex for autoupdate to import the value of
296 # `m4_PACKAGE_VERSION'. We could `AU_DEFUN' `m4_PACKAGE_VERSION', but
297 # this would replace all its occurrences with the current version of
298 # Autoconf, which is certainly not what the user intended.
299 AU_DEFUN([AC_PREREQ],
300 [m4_version_prereq([$1])[]dnl
301 [AC_PREREQ(]]m4_defn([m4_PACKAGE_VERSION])[[)]])
306 # Complain and exit if the Autoconf version is less than VERSION.
307 m4_undefine([AC_PREREQ])
308 m4_copy([m4_version_prereq], [AC_PREREQ])
311 # AC_AUTOCONF_VERSION
312 # -------------------
313 # The current version of Autoconf parsing this file.
314 m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])
320 ## ---------------- ##
321 ## Initialization. ##
322 ## ---------------- ##
325 # All the following macros are used by AC_INIT. Ideally, they should
326 # be presented in the order in which they are output. Please, help us
327 # sorting it, or at least, don't augment the entropy.
332 # Provide useful headers; override the HEADER-COMMENT created by M4sh.
333 m4_define([_AC_INIT_NOTICE],
334 [m4_cleardivert([HEADER-COMMENT])]dnl
335 [m4_divert_text([HEADER-COMMENT],
336 [@%:@ Guess values for system-dependent variables and create Makefiles.
337 @%:@ Generated by m4_PACKAGE_STRING[]dnl
338 m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
340 m4_ifset([AC_PACKAGE_BUGREPORT],
341 [m4_divert_text([HEADER-COMMENT],
343 @%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
349 # We dump to VERSION_FSF to make sure we are inserted before the
350 # user copyrights, and after the setup of the --version handling.
351 m4_define([_AC_INIT_COPYRIGHT],
352 [AC_COPYRIGHT(m4_defn([_AC_COPYRIGHT_YEARS]), [VERSION_FSF], [
353 m4_copyright_condense])dnl
355 [This configure script is free software; the Free Software Foundation
356 gives unlimited permission to copy, distribute and modify it.],
357 [VERSION_FSF], [m4_echo])])
362 # Set up the file descriptors used by `configure'.
363 # File descriptor usage:
364 # 0 standard input (/dev/null)
366 # 2 errors and warnings
367 # AS_MESSAGE_LOG_FD compiler messages saved in config.log
368 # AS_MESSAGE_FD checking for... messages and results
369 # AS_ORIGINAL_STDIN_FD original standard input (still open)
371 # stdin is /dev/null because checks that run programs may
372 # inadvertently run interactive ones, which would stop configuration
373 # until someone typed an EOF.
374 m4_define([AS_MESSAGE_FD], 6)
375 m4_define([AS_ORIGINAL_STDIN_FD], 7)
376 # That's how they used to be named.
377 AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD])
378 AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
383 # Values which defaults can be set from `configure.ac'.
384 # `/bin/machine' is used in `glibcbug'. The others are used in config.*
385 m4_define([_AC_INIT_DEFAULTS],
386 [m4_divert_push([DEFAULTS])dnl
388 test -n "$DJDIR" || exec AS_ORIGINAL_STDIN_FD<&0 </dev/null
389 exec AS_MESSAGE_FD>&1
392 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
393 # so uname gets run too.
394 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
399 ac_default_prefix=/usr/local
401 ac_config_libobj_dir=.
408 AC_SUBST([PATH_SEPARATOR])dnl
410 # Identity of this package.
411 AC_SUBST([PACKAGE_NAME],
412 [m4_ifdef([AC_PACKAGE_NAME], ['AC_PACKAGE_NAME'])])dnl
413 AC_SUBST([PACKAGE_TARNAME],
414 [m4_ifdef([AC_PACKAGE_TARNAME], ['AC_PACKAGE_TARNAME'])])dnl
415 AC_SUBST([PACKAGE_VERSION],
416 [m4_ifdef([AC_PACKAGE_VERSION], ['AC_PACKAGE_VERSION'])])dnl
417 AC_SUBST([PACKAGE_STRING],
418 [m4_ifdef([AC_PACKAGE_STRING], ['AC_PACKAGE_STRING'])])dnl
419 AC_SUBST([PACKAGE_BUGREPORT],
420 [m4_ifdef([AC_PACKAGE_BUGREPORT], ['AC_PACKAGE_BUGREPORT'])])dnl
421 AC_SUBST([PACKAGE_URL],
422 [m4_ifdef([AC_PACKAGE_URL], ['AC_PACKAGE_URL'])])dnl
424 m4_divert_pop([DEFAULTS])dnl
425 m4_wrap_lifo([m4_divert_text([DEFAULTS],
426 [ac_subst_vars='m4_set_dump([_AC_SUBST_VARS], m4_newline)'
427 ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'
429 enable_option_checking
430 m4_ifdef([_AC_USER_OPTS], [m4_defn([_AC_USER_OPTS])
432 m4_ifdef([_AC_PRECIOUS_VARS],
433 [_AC_ARG_VAR_STORE[]dnl
434 _AC_ARG_VAR_VALIDATE[]dnl
435 ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
436 m4_ifdef([_AC_LIST_SUBDIRS],
437 [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
439 ])# _AC_INIT_DEFAULTS
442 # AC_PREFIX_DEFAULT(PREFIX)
443 # -------------------------
444 AC_DEFUN([AC_PREFIX_DEFAULT],
445 [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])])
448 # AC_PREFIX_PROGRAM(PROGRAM)
449 # --------------------------
450 # Guess the value for the `prefix' variable by looking for
451 # the argument program along PATH and taking its parent.
452 # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
453 # set `prefix' to /usr/local/gnu.
454 # This comes too late to find a site file based on the prefix,
455 # and it might use a cached value for the path.
456 # No big loss, I think, since most configures don't use this macro anyway.
457 AC_DEFUN([AC_PREFIX_PROGRAM],
458 [if test "x$prefix" = xNONE; then
459 dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle.
460 _AS_ECHO_N([checking for prefix by ])
461 AC_PATH_PROG(ac_prefix_program, [$1])
462 if test -n "$ac_prefix_program"; then
463 prefix=`AS_DIRNAME(["$ac_prefix_program"])`
464 prefix=`AS_DIRNAME(["$prefix"])`
467 ])# AC_PREFIX_PROGRAM
470 # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
471 # ---------------------------------------------
472 # UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
473 # relative to the directory that configure is in, which we can look
474 # for to find out if srcdir is correct.
475 AC_DEFUN([AC_CONFIG_SRCDIR],
476 [m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
481 # Set ac_pwd, and sanity-check it and the source and installation directories.
483 # (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
485 AC_DEFUN([_AC_INIT_DIRCHECK],
486 [m4_divert_push([PARSE_ARGS])dnl
488 ac_pwd=`pwd` && test -n "$ac_pwd" &&
489 ac_ls_di=`ls -di .` &&
490 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
491 AC_MSG_ERROR([working directory cannot be determined])
492 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
493 AC_MSG_ERROR([pwd does not report name of working directory])
495 m4_divert_pop([PARSE_ARGS])dnl
496 ])# _AC_INIT_DIRCHECK
500 # Compute `srcdir' based on `$ac_unique_file'.
502 # (We have to AC_DEFUN it, since we use AC_REQUIRE.)
504 AC_DEFUN([_AC_INIT_SRCDIR],
505 [AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
506 m4_divert_push([PARSE_ARGS])dnl
508 # Find the source files, if location was not specified.
509 if test -z "$srcdir"; then
510 ac_srcdir_defaulted=yes
511 # Try the directory containing this script, then the parent directory.
512 ac_confdir=`AS_DIRNAME(["$as_myself"])`
514 if test ! -r "$srcdir/$ac_unique_file"; then
518 ac_srcdir_defaulted=no
520 if test ! -r "$srcdir/$ac_unique_file"; then
521 test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
522 AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
524 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
526 cd "$srcdir" && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
528 # When building in place, set srcdir=.
529 if test "$ac_abs_confdir" = "$ac_pwd"; then
532 # Remove unnecessary trailing slashes from srcdir.
533 # Double slashes in file names in object file debugging info
534 # mess up M-x gdb in Emacs.
536 */) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
538 m4_divert_pop([PARSE_ARGS])dnl
542 # _AC_INIT_PARSE_ARGS
543 # -------------------
544 m4_define([_AC_INIT_PARSE_ARGS],
545 [m4_divert_push([PARSE_ARGS])dnl
547 # Initialize some variables set by options.
549 ac_init_version=false
550 ac_unrecognized_opts=
552 # The variables have the same names as the options, with
553 # dashes changed to underlines.
555 AC_SUBST(exec_prefix, NONE)dnl
558 AC_SUBST(prefix, NONE)dnl
561 AC_SUBST(program_transform_name, [s,x,x,])dnl
569 # Installation directory options.
570 # These are left unexpanded so users can "make install exec_prefix=/foo"
571 # and all the variables that are supposed to be based on exec_prefix
572 # by default will actually change.
573 # Use braces instead of parens because sh, perl, etc. also accept them.
574 # (The list follows the same order as the GNU Coding Standards.)
575 AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
576 AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
577 AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
578 AC_SUBST([datarootdir], ['${prefix}/share'])dnl
579 AC_SUBST([datadir], ['${datarootdir}'])dnl
580 AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
581 AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
582 AC_SUBST([localstatedir], ['${prefix}/var'])dnl
583 AC_SUBST([includedir], ['${prefix}/include'])dnl
584 AC_SUBST([oldincludedir], ['/usr/include'])dnl
585 AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
586 ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
587 ['${datarootdir}/doc/${PACKAGE}'])])dnl
588 AC_SUBST([infodir], ['${datarootdir}/info'])dnl
589 AC_SUBST([htmldir], ['${docdir}'])dnl
590 AC_SUBST([dvidir], ['${docdir}'])dnl
591 AC_SUBST([pdfdir], ['${docdir}'])dnl
592 AC_SUBST([psdir], ['${docdir}'])dnl
593 AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
594 AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
595 AC_SUBST([mandir], ['${datarootdir}/man'])dnl
601 # If the previous option needs an argument, assign it.
602 if test -n "$ac_prev"; then
603 eval $ac_prev=\$ac_option
609 *=*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
613 # Accept the important Cygnus configure options, so we can diagnose typos.
615 case $ac_dashdash$ac_option in
619 -bindir | --bindir | --bindi | --bind | --bin | --bi)
621 -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
624 -build | --build | --buil | --bui | --bu)
625 ac_prev=build_alias ;;
626 -build=* | --build=* | --buil=* | --bui=* | --bu=*)
627 build_alias=$ac_optarg ;;
629 -cache-file | --cache-file | --cache-fil | --cache-fi \
630 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
631 ac_prev=cache_file ;;
632 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
633 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
634 cache_file=$ac_optarg ;;
637 cache_file=config.cache ;;
639 -datadir | --datadir | --datadi | --datad)
641 -datadir=* | --datadir=* | --datadi=* | --datad=*)
642 datadir=$ac_optarg ;;
644 -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
645 | --dataroo | --dataro | --datar)
646 ac_prev=datarootdir ;;
647 -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
648 | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
649 datarootdir=$ac_optarg ;;
651 _AC_INIT_PARSE_ENABLE([disable])
653 -docdir | --docdir | --docdi | --doc | --do)
655 -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
658 -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
660 -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
663 _AC_INIT_PARSE_ENABLE([enable])
665 -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
666 | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
667 | --exec | --exe | --ex)
668 ac_prev=exec_prefix ;;
669 -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
670 | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
671 | --exec=* | --exe=* | --ex=*)
672 exec_prefix=$ac_optarg ;;
674 -gas | --gas | --ga | --g)
675 # Obsolete; use --with-gas.
678 -help | --help | --hel | --he | -h)
680 -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
681 ac_init_help=recursive ;;
682 -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
683 ac_init_help=short ;;
685 -host | --host | --hos | --ho)
686 ac_prev=host_alias ;;
687 -host=* | --host=* | --hos=* | --ho=*)
688 host_alias=$ac_optarg ;;
690 -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
692 -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
694 htmldir=$ac_optarg ;;
696 -includedir | --includedir | --includedi | --included | --include \
697 | --includ | --inclu | --incl | --inc)
698 ac_prev=includedir ;;
699 -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
700 | --includ=* | --inclu=* | --incl=* | --inc=*)
701 includedir=$ac_optarg ;;
703 -infodir | --infodir | --infodi | --infod | --info | --inf)
705 -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
706 infodir=$ac_optarg ;;
708 -libdir | --libdir | --libdi | --libd)
710 -libdir=* | --libdir=* | --libdi=* | --libd=*)
713 -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
714 | --libexe | --libex | --libe)
715 ac_prev=libexecdir ;;
716 -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
717 | --libexe=* | --libex=* | --libe=*)
718 libexecdir=$ac_optarg ;;
720 -localedir | --localedir | --localedi | --localed | --locale)
722 -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
723 localedir=$ac_optarg ;;
725 -localstatedir | --localstatedir | --localstatedi | --localstated \
726 | --localstate | --localstat | --localsta | --localst | --locals)
727 ac_prev=localstatedir ;;
728 -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
729 | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
730 localstatedir=$ac_optarg ;;
732 -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
734 -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
738 # Obsolete; use --without-fp.
741 -no-create | --no-create | --no-creat | --no-crea | --no-cre \
742 | --no-cr | --no-c | -n)
745 -no-recursion | --no-recursion | --no-recursio | --no-recursi \
746 | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
749 -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
750 | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
751 | --oldin | --oldi | --old | --ol | --o)
752 ac_prev=oldincludedir ;;
753 -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
754 | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
755 | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
756 oldincludedir=$ac_optarg ;;
758 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
760 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
763 -program-prefix | --program-prefix | --program-prefi | --program-pref \
764 | --program-pre | --program-pr | --program-p)
765 ac_prev=program_prefix ;;
766 -program-prefix=* | --program-prefix=* | --program-prefi=* \
767 | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
768 program_prefix=$ac_optarg ;;
770 -program-suffix | --program-suffix | --program-suffi | --program-suff \
771 | --program-suf | --program-su | --program-s)
772 ac_prev=program_suffix ;;
773 -program-suffix=* | --program-suffix=* | --program-suffi=* \
774 | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
775 program_suffix=$ac_optarg ;;
777 -program-transform-name | --program-transform-name \
778 | --program-transform-nam | --program-transform-na \
779 | --program-transform-n | --program-transform- \
780 | --program-transform | --program-transfor \
781 | --program-transfo | --program-transf \
782 | --program-trans | --program-tran \
783 | --progr-tra | --program-tr | --program-t)
784 ac_prev=program_transform_name ;;
785 -program-transform-name=* | --program-transform-name=* \
786 | --program-transform-nam=* | --program-transform-na=* \
787 | --program-transform-n=* | --program-transform-=* \
788 | --program-transform=* | --program-transfor=* \
789 | --program-transfo=* | --program-transf=* \
790 | --program-trans=* | --program-tran=* \
791 | --progr-tra=* | --program-tr=* | --program-t=*)
792 program_transform_name=$ac_optarg ;;
794 -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
796 -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
799 -psdir | --psdir | --psdi | --psd | --ps)
801 -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
804 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
805 | -silent | --silent | --silen | --sile | --sil)
808 -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
810 -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
812 sbindir=$ac_optarg ;;
814 -sharedstatedir | --sharedstatedir | --sharedstatedi \
815 | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
816 | --sharedst | --shareds | --shared | --share | --shar \
818 ac_prev=sharedstatedir ;;
819 -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
820 | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
821 | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
823 sharedstatedir=$ac_optarg ;;
825 -site | --site | --sit)
827 -site=* | --site=* | --sit=*)
830 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
832 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
835 -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
836 | --syscon | --sysco | --sysc | --sys | --sy)
837 ac_prev=sysconfdir ;;
838 -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
839 | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
840 sysconfdir=$ac_optarg ;;
842 -target | --target | --targe | --targ | --tar | --ta | --t)
843 ac_prev=target_alias ;;
844 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
845 target_alias=$ac_optarg ;;
847 -v | -verbose | --verbose | --verbos | --verbo | --verb)
850 -version | --version | --versio | --versi | --vers | -V)
853 _AC_INIT_PARSE_ENABLE([with])
855 _AC_INIT_PARSE_ENABLE([without])
858 # Obsolete; use --with-x.
861 -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
862 | --x-incl | --x-inc | --x-in | --x-i)
863 ac_prev=x_includes ;;
864 -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
865 | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
866 x_includes=$ac_optarg ;;
868 -x-libraries | --x-libraries | --x-librarie | --x-librari \
869 | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
870 ac_prev=x_libraries ;;
871 -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
872 | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
873 x_libraries=$ac_optarg ;;
875 -*) AC_MSG_ERROR([unrecognized option: `$ac_option'
876 Try `$[0] --help' for more information.])
880 ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
881 # Reject names that are not valid shell variable names.
882 case $ac_envvar in #(
883 '' | [[0-9]]* | *[[!_$as_cr_alnum]]* )
884 AC_MSG_ERROR([invalid variable name: `$ac_envvar']) ;;
886 eval $ac_envvar=\$ac_optarg
890 # FIXME: should be removed in autoconf 3.0.
891 AC_MSG_WARN([you should use --build, --host, --target])
892 expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
893 AC_MSG_WARN([invalid host type: $ac_option])
894 : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
900 if test -n "$ac_prev"; then
901 ac_option=--`echo $ac_prev | sed 's/_/-/g'`
902 AC_MSG_ERROR([missing argument to $ac_option])
905 if test -n "$ac_unrecognized_opts"; then
906 case $enable_option_checking in
908 fatal) AC_MSG_ERROR([unrecognized options: $ac_unrecognized_opts]) ;;
909 *) AC_MSG_WARN( [unrecognized options: $ac_unrecognized_opts]) ;;
913 # Check all directory arguments for consistency.
914 for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
915 datadir sysconfdir sharedstatedir localstatedir includedir \
916 oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
917 libdir localedir mandir
919 eval ac_val=\$$ac_var
920 # Remove trailing slashes.
923 ac_val=`expr "X$ac_val" : 'X\(.*[[^/]]\)' \| "X$ac_val" : 'X\(.*\)'`
924 eval $ac_var=\$ac_val;;
926 # Be sure to have absolute directory names.
928 [[\\/$]]* | ?:[[\\/]]* ) continue;;
929 NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
931 AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
934 # There might be people who depend on the old broken behavior: `$host'
935 # used to hold the argument of --host etc.
936 # FIXME: To remove some day.
941 # FIXME: To remove some day.
942 if test "x$host_alias" != x; then
943 if test "x$build_alias" = x; then
944 cross_compiling=maybe
945 AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
946 If a cross compiler is detected then cross compile mode will be used.])
947 elif test "x$build_alias" != "x$host_alias"; then
953 test -n "$host_alias" && ac_tool_prefix=$host_alias-
955 test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
957 m4_divert_pop([PARSE_ARGS])dnl
958 ])# _AC_INIT_PARSE_ARGS
961 # _AC_INIT_PARSE_ENABLE(OPTION-NAME)
962 # ----------------------------------
963 # A trivial front-end for _AC_INIT_PARSE_ENABLE2.
965 m4_define([_AC_INIT_PARSE_ENABLE],
966 [m4_bmatch([$1], [^with],
967 [_AC_INIT_PARSE_ENABLE2([$1], [with])],
968 [_AC_INIT_PARSE_ENABLE2([$1], [enable])])])
971 # _AC_INIT_PARSE_ENABLE2(OPTION-NAME, POSITIVE-NAME)
972 # --------------------------------------------------
973 # Handle an `--enable' or a `--with' option.
975 # OPTION-NAME is `enable', `disable', `with', or `without'.
976 # POSITIVE-NAME is the corresponding positive variant, i.e. `enable' or `with'.
978 # Positive variant of the option is recognized by the condition
979 # OPTION-NAME == POSITIVE-NAME .
981 m4_define([_AC_INIT_PARSE_ENABLE2],
983 ac_useropt=`expr "x$ac_option" : 'x-*$1-\(m4_if([$1], [$2], [[[^=]]], [.])*\)'`
984 # Reject names that are not valid shell variable names.
985 expr "x$ac_useropt" : "[.*[^-+._$as_cr_alnum]]" >/dev/null &&
987 [invalid ]m4_if([$2], [with], [package], [feature])[ name: $ac_useropt])
988 ac_useropt_orig=$ac_useropt
989 ac_useropt=`AS_ECHO(["$ac_useropt"]) | sed 's/[[-+.]]/_/g'`
990 case $ac_user_opts in
994 *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--$1-$ac_useropt_orig"
995 ac_unrecognized_sep=', ';;
997 eval $2_$ac_useropt=m4_if([$1], [$2], [\$ac_optarg], [no]) ;;dnl
1003 # Handle the `configure --help' message.
1004 m4_define([_AC_INIT_HELP],
1005 [m4_divert_push([HELP_BEGIN])dnl
1008 # Report the --help message.
1010 if test "$ac_init_help" = "long"; then
1011 # Omit some internal or obsolete options to make the list less imposing.
1012 # This message is too long to be a string in the A/UX 3.1 sh.
1014 \`configure' configures m4_ifset([AC_PACKAGE_STRING],
1015 [AC_PACKAGE_STRING],
1016 [this package]) to adapt to many kinds of systems.
1018 Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
1020 [To assign environment variables (e.g., CC, CFLAGS...), specify them as
1021 VAR=VALUE. See below for descriptions of some of the useful variables.
1023 Defaults for the options are specified in brackets.
1026 -h, --help display this help and exit
1027 --help=short display options specific to this package
1028 --help=recursive display the short help of all the included packages
1029 -V, --version display version information and exit
1030 -q, --quiet, --silent do not print \`checking...' messages
1031 --cache-file=FILE cache test results in FILE [disabled]
1032 -C, --config-cache alias for \`--cache-file=config.cache'
1033 -n, --no-create do not create output files
1034 --srcdir=DIR find the sources in DIR [configure dir or \`..']
1036 Installation directories:
1037 ]AS_HELP_STRING([--prefix=PREFIX],
1038 [install architecture-independent files in PREFIX [$ac_default_prefix]])
1039 AS_HELP_STRING([--exec-prefix=EPREFIX],
1040 [install architecture-dependent files in EPREFIX [PREFIX]])[
1042 By default, \`make install' will install all the files in
1043 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
1044 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
1045 for instance \`--prefix=\$HOME'.
1047 For better control, use the options below.
1049 Fine tuning of the installation directories:
1050 --bindir=DIR user executables [EPREFIX/bin]
1051 --sbindir=DIR system admin executables [EPREFIX/sbin]
1052 --libexecdir=DIR program executables [EPREFIX/libexec]
1053 --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
1054 --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
1055 --localstatedir=DIR modifiable single-machine data [PREFIX/var]
1056 --libdir=DIR object code libraries [EPREFIX/lib]
1057 --includedir=DIR C header files [PREFIX/include]
1058 --oldincludedir=DIR C header files for non-gcc [/usr/include]
1059 --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
1060 --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
1061 --infodir=DIR info documentation [DATAROOTDIR/info]
1062 --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
1063 --mandir=DIR man documentation [DATAROOTDIR/man]
1064 ]AS_HELP_STRING([--docdir=DIR],
1065 [documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME],
1066 [AC_PACKAGE_TARNAME], [PACKAGE])@:>@)[
1067 --htmldir=DIR html documentation [DOCDIR]
1068 --dvidir=DIR dvi documentation [DOCDIR]
1069 --pdfdir=DIR pdf documentation [DOCDIR]
1070 --psdir=DIR ps documentation [DOCDIR]
1074 m4_divert_pop([HELP_BEGIN])dnl
1075 dnl The order of the diversions here is
1077 dnl which may be extended by extra generic options such as with X or
1078 dnl AC_ARG_PROGRAM. Displayed only in long --help.
1081 dnl Support for cross compilation (--build, --host and --target).
1082 dnl Display only in long --help.
1085 dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
1086 dnl then implements the header of the non generic options.
1095 dnl initialized below, in which we dump the trailer (handling of the
1096 dnl recursion for instance).
1097 m4_divert_push([HELP_ENABLE])dnl
1101 if test -n "$ac_init_help"; then
1102 m4_ifset([AC_PACKAGE_STRING],
1103 [ case $ac_init_help in
1104 short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
1107 m4_divert_pop([HELP_ENABLE])dnl
1108 m4_divert_push([HELP_END])dnl
1110 Report bugs to m4_ifset([AC_PACKAGE_BUGREPORT], [<AC_PACKAGE_BUGREPORT>],
1111 [the package provider]).dnl
1112 m4_ifdef([AC_PACKAGE_NAME], [m4_ifset([AC_PACKAGE_URL], [
1113 AC_PACKAGE_NAME home page: <AC_PACKAGE_URL>.])dnl
1114 m4_if(m4_index(m4_defn([AC_PACKAGE_NAME]), [GNU ]), [0], [
1115 General help using GNU software: <http://www.gnu.org/gethelp/>.])])
1120 if test "$ac_init_help" = "recursive"; then
1121 # If there are subdirs, report their specific --help.
1122 for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
1123 test -d "$ac_dir" ||
1124 { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
1126 _AC_SRCDIRS(["$ac_dir"])
1127 cd "$ac_dir" || { ac_status=$?; continue; }
1128 # Check for guested configure.
1129 if test -f "$ac_srcdir/configure.gnu"; then
1131 $SHELL "$ac_srcdir/configure.gnu" --help=recursive
1132 elif test -f "$ac_srcdir/configure"; then
1134 $SHELL "$ac_srcdir/configure" --help=recursive
1136 AC_MSG_WARN([no configuration information is in $ac_dir])
1138 cd "$ac_pwd" || { ac_status=$?; break; }
1142 test -n "$ac_init_help" && exit $ac_status
1143 m4_divert_pop([HELP_END])dnl
1149 # Handle the `configure --version' message.
1150 m4_define([_AC_INIT_VERSION],
1151 [m4_divert_text([VERSION_BEGIN],
1152 [if $ac_init_version; then
1154 m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
1155 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
1156 generated by m4_PACKAGE_STRING])
1157 m4_divert_text([VERSION_END],
1161 ])# _AC_INIT_VERSION
1164 # _AC_INIT_CONFIG_LOG
1165 # -------------------
1166 # Initialize the config.log file descriptor and write header to it.
1167 m4_define([_AC_INIT_CONFIG_LOG],
1168 [m4_divert_text([INIT_PREPARE],
1169 [m4_define([AS_MESSAGE_LOG_FD], 5)dnl
1170 cat >config.log <<_ACEOF
1171 This file contains any messages produced by compilers while
1172 running configure, to aid debugging if configure makes a mistake.
1174 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1175 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1176 generated by m4_PACKAGE_STRING. Invocation command line was
1181 exec AS_MESSAGE_LOG_FD>>config.log
1182 AS_UNAME >&AS_MESSAGE_LOG_FD
1184 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1187 m4_text_box([Core tests.])
1190 ])])# _AC_INIT_CONFIG_LOG
1195 # Called by AC_INIT to build the preamble of the `configure' scripts.
1196 # 1. Trap and clean up various tmp files.
1197 # 2. Set up the fd and output files
1198 # 3. Remember the options given to `configure' for `config.status --recheck'.
1199 # 4. Initiates confdefs.h
1200 # 5. Loads site and cache files
1201 m4_define([_AC_INIT_PREPARE],
1202 [m4_divert_push([INIT_PREPARE])dnl
1204 # Keep a trace of the command line.
1205 # Strip out --no-create and --no-recursion so they do not pile up.
1206 # Strip out --silent because we don't want to record it for future runs.
1207 # Also quote any args containing shell meta-characters.
1208 # Make two passes to allow for proper duplicate-argument suppression.
1212 ac_must_keep_next=false
1218 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1219 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1220 | -silent | --silent | --silen | --sile | --sil)
1223 ac_arg=`AS_ECHO(["$ac_arg"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1226 1) AS_VAR_APPEND([ac_configure_args0], [" '$ac_arg'"]) ;;
1228 AS_VAR_APPEND([ac_configure_args1], [" '$ac_arg'"])
1229 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1230 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1231 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1232 dnl give --prefix foo bar).
1233 if test $ac_must_keep_next = true; then
1234 ac_must_keep_next=false # Got value, back to normal.
1237 dnl Use broad patterns, as arguments that would have already made configure
1238 dnl exit don't matter.
1239 *=* | --config-cache | -C | -disable-* | --disable-* \
1240 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1241 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1242 | -with-* | --with-* | -without-* | --without-* | --x)
1243 case "$ac_configure_args0 " in
1244 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1247 -* ) ac_must_keep_next=true ;;
1250 AS_VAR_APPEND([ac_configure_args], [" '$ac_arg'"])
1255 AS_UNSET(ac_configure_args0)
1256 AS_UNSET(ac_configure_args1)
1258 # When interrupted or exit'd, cleanup temporary files, and complete
1259 # config.log. We remove comments because anyway the quotes in there
1260 # would cause problems or look ugly.
1261 # WARNING: Use '\'' to represent an apostrophe within the trap.
1262 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
1263 trap 'exit_status=$?
1264 # Save into config.log some information that might help in debugging.
1268 AS_BOX([Cache variables.])
1270 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1276 AS_BOX([Output variables.])
1278 for ac_var in $ac_subst_vars
1280 eval ac_val=\$$ac_var
1282 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1284 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1288 if test -n "$ac_subst_files"; then
1289 AS_BOX([File substitutions.])
1291 for ac_var in $ac_subst_files
1293 eval ac_val=\$$ac_var
1295 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1297 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1302 if test -s confdefs.h; then
1303 AS_BOX([confdefs.h.])
1308 test "$ac_signal" != 0 &&
1309 AS_ECHO(["$as_me: caught signal $ac_signal"])
1310 AS_ECHO(["$as_me: exit $exit_status"])
1311 } >&AS_MESSAGE_LOG_FD
1312 rm -f core *.core core.conftest.* &&
1313 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1316 for ac_signal in 1 2 13 15; do
1317 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1321 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1322 rm -f -r conftest* confdefs.h
1324 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1325 dnl containing less than 14 bytes (including the newline).
1326 AS_ECHO(["/* confdefs.h */"]) > confdefs.h
1328 # Predefined preprocessor variables.
1329 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1330 [Define to the full name of this package.])dnl
1331 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1332 [Define to the one symbol short name of this package.])dnl
1333 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1334 [Define to the version of this package.])dnl
1335 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1336 [Define to the full name and version of this package.])dnl
1337 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1338 [Define to the address where bug reports for this package
1339 should be sent.])dnl
1340 AC_DEFINE_UNQUOTED([PACKAGE_URL], ["$PACKAGE_URL"],
1341 [Define to the home page for this package.])
1343 # Let the site file select an alternate cache file if it wants to.
1346 m4_divert_pop([INIT_PREPARE])dnl
1347 ])# _AC_INIT_PREPARE
1350 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1351 # ----------------------------------------
1352 # This macro is used only for Autoupdate.
1354 [m4_ifval([$2], [[AC_INIT($@)]],
1357 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1361 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT], [TARNAME], [URL])
1362 # ----------------------------------------------------------
1363 # Include the user macro files, prepare the diversions, and output the
1364 # preamble of the `configure' script.
1366 # If BUG-REPORT is omitted, do without (unless the user previously
1367 # defined the m4 macro AC_PACKAGE_BUGREPORT). If TARNAME is omitted,
1368 # use PACKAGE to seed it. If URL is omitted, use
1369 # `http://www.gnu.org/software/TARNAME/' if PACKAGE begins with `GNU',
1370 # otherwise, do without.
1372 # Note that the order is important: first initialize, then set the
1374 m4_define([AC_INIT],
1375 [# Forbidden tokens and exceptions.
1376 m4_pattern_forbid([^_?A[CHUM]_])
1377 m4_pattern_forbid([_AC_])
1378 m4_pattern_forbid([^LIBOBJS$],
1379 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1380 # Actually reserved by M4sh.
1381 m4_pattern_allow([^AS_FLAGS$])
1384 m4_divert_push([KILL])
1385 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1396 m4_divert_text([SHELL_FN], [
1397 m4_text_box([Autoconf initialization.])])
1399 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1401 dnl Substitute for predefined variables.
1403 AC_SUBST([ECHO_C])dnl
1404 AC_SUBST([ECHO_N])dnl
1405 AC_SUBST([ECHO_T])dnl
1407 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1408 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1409 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1417 ## ------------------------------------------------------------- ##
1418 ## Selecting optional features, working with optional software. ##
1419 ## ------------------------------------------------------------- ##
1421 # AC_PRESERVE_HELP_ORDER
1422 # ----------------------
1423 # Emit help strings in the order given, rather than grouping all --enable-FOO
1424 # and all --with-BAR.
1425 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1426 [m4_divert_once([HELP_ENABLE], [[
1427 Optional Features and Packages:
1428 --disable-option-checking ignore unrecognized --enable/--with options
1429 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1430 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1431 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1432 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1433 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1434 ])# AC_PRESERVE_HELP_ORDER
1436 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1437 # -------------------------------------------------------------------
1438 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1439 # OPTION is either "enable" or "with".
1441 m4_define([_AC_ENABLE_IF],
1442 [@%:@ Check whether --$1-$2 was given.
1443 _AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-.], [__]), [$3], [$4])
1446 m4_define([_AC_ENABLE_IF_ACTION],
1447 [m4_append_uniq([_AC_USER_OPTS], [$1_$2], [
1449 AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
1452 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1453 # ------------------------------------------------------------------------
1454 AC_DEFUN([AC_ARG_ENABLE],
1455 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1457 [m4_divert_once([HELP_ENABLE], [[
1459 --disable-option-checking ignore unrecognized --enable/--with options
1460 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1461 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1462 m4_divert_once([HELP_ENABLE], [$2])dnl
1463 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1467 AU_DEFUN([AC_ENABLE],
1468 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1471 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1472 # --------------------------------------------------------------------
1473 AC_DEFUN([AC_ARG_WITH],
1474 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1476 [m4_divert_once([HELP_WITH], [[
1478 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1479 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1480 m4_divert_once([HELP_WITH], [$2])dnl
1481 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1485 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1487 # AC_DISABLE_OPTION_CHECKING
1488 # --------------------------------------------------------------------
1489 AC_DEFUN([AC_DISABLE_OPTION_CHECKING],
1490 [m4_divert_once([DEFAULTS], [enable_option_checking=no])
1491 ])# AC_DISABLE_OPTION_CHECKING
1494 ## ----------------------------------------- ##
1495 ## Remembering variables for reconfiguring. ##
1496 ## ----------------------------------------- ##
1499 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1500 # ----------------------------------
1501 # Register VARNAME as a precious variable, and document it in
1502 # `configure --help' (but only once).
1503 AC_DEFUN([AC_ARG_VAR],
1504 [m4_divert_once([HELP_VAR], [[
1505 Some influential environment variables:]])dnl
1506 m4_divert_once([HELP_VAR_END], [[
1507 Use these variables to override the choices made by `configure' or to help
1508 it to find libraries and programs with nonstandard names/locations.]])dnl
1509 m4_expand_once([m4_divert_text([HELP_VAR],
1510 [AS_HELP_STRING([$1], [$2], [ ])])],
1513 _AC_ARG_VAR_PRECIOUS([$1])dnl
1517 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1518 # -----------------------------
1519 # Declare VARNAME is precious.
1520 m4_define([_AC_ARG_VAR_PRECIOUS],
1521 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1528 # We try to diagnose when precious variables have changed. To do this,
1529 # make two early snapshots (after the option processing to take
1530 # explicit variables into account) of those variables: one (ac_env_)
1531 # which represents the current run, and a second (ac_cv_env_) which,
1532 # at the first run, will be saved in the cache. As an exception to
1533 # the cache mechanism, its loading will override these variables (non
1534 # `ac_cv_env_' cache value are only set when unset).
1536 # In subsequent runs, after having loaded the cache, compare
1537 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1538 m4_define([_AC_ARG_VAR_STORE],
1539 [m4_divert_text([PARSE_ARGS],
1540 [for ac_var in $ac_precious_vars; do
1541 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1542 eval ac_env_${ac_var}_value=\$${ac_var}
1543 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1544 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1549 # _AC_ARG_VAR_VALIDATE
1550 # --------------------
1551 # The precious variables are saved twice at the beginning of
1552 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1553 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1554 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1556 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1557 # content of the cached values, while `ac_env_' represents that of the
1560 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1562 m4_define([_AC_ARG_VAR_VALIDATE],
1563 [m4_divert_text([INIT_PREPARE],
1564 [# Check that the precious variables saved in the cache have kept the same
1566 ac_cache_corrupted=false
1567 for ac_var in $ac_precious_vars; do
1568 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1569 eval ac_new_set=\$ac_env_${ac_var}_set
1570 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1571 eval ac_new_val=\$ac_env_${ac_var}_value
1572 case $ac_old_set,$ac_new_set in
1574 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1575 ac_cache_corrupted=: ;;
1577 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1578 ac_cache_corrupted=: ;;
1581 if test "x$ac_old_val" != "x$ac_new_val"; then
1582 # differences in whitespace do not lead to failure.
1583 ac_old_val_w=`echo x $ac_old_val`
1584 ac_new_val_w=`echo x $ac_new_val`
1585 if test "$ac_old_val_w" != "$ac_new_val_w"; then
1586 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1587 ac_cache_corrupted=:
1589 AS_MESSAGE([warning: ignoring whitespace changes in `$ac_var' since the previous run:], 2)
1590 eval $ac_var=\$ac_old_val
1592 AS_MESSAGE([ former value: `$ac_old_val'], 2)
1593 AS_MESSAGE([ current value: `$ac_new_val'], 2)
1596 # Pass precious variables to config.status.
1597 if test "$ac_new_set" = set; then
1599 *\'*) ac_arg=$ac_var=`AS_ECHO(["$ac_new_val"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1600 *) ac_arg=$ac_var=$ac_new_val ;;
1602 case " $ac_configure_args " in
1603 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1604 *) AS_VAR_APPEND([ac_configure_args], [" '$ac_arg'"]) ;;
1608 if $ac_cache_corrupted; then
1609 AS_MESSAGE([error: in `$ac_pwd':], 2)
1610 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1611 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1613 ])# _AC_ARG_VAR_VALIDATE
1619 ## ---------------------------- ##
1620 ## Transforming program names. ##
1621 ## ---------------------------- ##
1626 # This macro is expanded only once, to avoid that `foo' ends up being
1627 # installed as `ggfoo'.
1628 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1629 [dnl Document the options.
1630 m4_divert_push([HELP_BEGIN])dnl
1633 --program-prefix=PREFIX prepend PREFIX to installed program names
1634 --program-suffix=SUFFIX append SUFFIX to installed program names
1635 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1636 m4_divert_pop([HELP_BEGIN])dnl
1637 test "$program_prefix" != NONE &&
1638 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1639 # Use a double $ so make ignores it.
1640 test "$program_suffix" != NONE &&
1641 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1642 # Double any \ or $.
1643 # By default was `s,x,x', remove it if useless.
1644 [ac_script='s/[\\$]/&&/g;s/;s,x,x,$//']
1645 program_transform_name=`AS_ECHO(["$program_transform_name"]) | sed "$ac_script"`
1652 ## ------------------------- ##
1653 ## Finding auxiliary files. ##
1654 ## ------------------------- ##
1657 # AC_CONFIG_AUX_DIR(DIR)
1658 # ----------------------
1659 # Find install-sh, config.sub, config.guess, and Cygnus configure
1660 # in directory DIR. These are auxiliary files used in configuration.
1661 # DIR can be either absolute or relative to $srcdir.
1662 AC_DEFUN([AC_CONFIG_AUX_DIR],
1663 [AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
1666 # AC_CONFIG_AUX_DIR_DEFAULT
1667 # -------------------------
1668 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1669 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1670 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1671 [AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
1674 # AC_CONFIG_AUX_DIRS(DIR ...)
1675 # ---------------------------
1676 # Internal subroutine.
1677 # Search for the configuration auxiliary files in directory list $1.
1678 # We look only for install-sh, so users of AC_PROG_INSTALL
1679 # do not automatically need to distribute the other auxiliary files.
1680 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1682 for ac_dir in $1; do
1683 for ac_t in install-sh install.sh shtool; do
1684 if test -f "$ac_dir/$ac_t"; then
1686 ac_install_sh="$ac_aux_dir/$ac_t -c"
1691 if test -z "$ac_aux_dir"; then
1692 AC_MSG_ERROR([cannot find install-sh, install.sh, or shtool in $1])
1695 # These three variables are undocumented and unsupported,
1696 # and are intended to be withdrawn in a future Autoconf release.
1697 # They can cause serious problems if a builder's source tree is in a directory
1698 # whose full name contains unusual characters.
1699 ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
1700 ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
1701 ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
1703 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1704 ])# AC_CONFIG_AUX_DIRS
1709 ## ------------------------ ##
1710 ## Finding aclocal macros. ##
1711 ## ------------------------ ##
1714 # AC_CONFIG_MACRO_DIR(DIR)
1715 # ------------------------
1716 # Declare directory containing additional macros for aclocal.
1717 AC_DEFUN([AC_CONFIG_MACRO_DIR], [])
1721 ## --------------------- ##
1722 ## Requiring aux files. ##
1723 ## --------------------- ##
1725 # AC_REQUIRE_AUX_FILE(FILE)
1726 # -------------------------
1727 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1728 # It announces FILE is required in the auxdir.
1729 m4_define([AC_REQUIRE_AUX_FILE],
1730 [AS_LITERAL_IF([$1], [],
1731 [m4_fatal([$0: requires a literal argument])])])
1735 ## ----------------------------------- ##
1736 ## Getting the canonical system type. ##
1737 ## ----------------------------------- ##
1740 # configure --host=HOST --target=TARGET --build=BUILD
1743 # 1. Build defaults to the current platform, as determined by config.guess.
1744 # 2. Host defaults to build.
1745 # 3. Target defaults to host.
1748 # _AC_CANONICAL_SPLIT(THING)
1749 # --------------------------
1750 # Generate the variables THING, THING_{alias cpu vendor os}.
1751 m4_define([_AC_CANONICAL_SPLIT],
1754 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1756 AC_SUBST([$1], [$ac_cv_$1])dnl
1757 ac_save_IFS=$IFS; IFS='-'
1760 AC_SUBST([$1_cpu], [$[1]])dnl
1761 AC_SUBST([$1_vendor], [$[2]])dnl
1763 [# Remember, the first character of IFS is used to create $]*,
1764 # except with old shells:
1767 case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
1768 AC_SUBST([$1_os])dnl
1769 ])# _AC_CANONICAL_SPLIT
1772 # AC_CANONICAL_BUILD
1773 # ------------------
1774 AC_DEFUN_ONCE([AC_CANONICAL_BUILD],
1775 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1776 AC_REQUIRE_AUX_FILE([config.sub])dnl
1777 AC_REQUIRE_AUX_FILE([config.guess])dnl
1778 m4_divert_once([HELP_CANON],
1781 --build=BUILD configure for building on BUILD [guessed]]])dnl
1782 # Make sure we can run config.sub.
1783 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
1784 AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
1786 AC_CACHE_CHECK([build system type], [ac_cv_build],
1787 [ac_build_alias=$build_alias
1788 test "x$ac_build_alias" = x &&
1789 ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
1790 test "x$ac_build_alias" = x &&
1791 AC_MSG_ERROR([cannot guess build type; you must specify one])
1792 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
1793 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
1795 _AC_CANONICAL_SPLIT(build)
1796 ])# AC_CANONICAL_BUILD
1801 AC_DEFUN_ONCE([AC_CANONICAL_HOST],
1802 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1803 m4_divert_once([HELP_CANON],
1804 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1805 AC_CACHE_CHECK([host system type], [ac_cv_host],
1806 [if test "x$host_alias" = x; then
1807 ac_cv_host=$ac_cv_build
1809 ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
1810 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
1813 _AC_CANONICAL_SPLIT([host])
1814 ])# AC_CANONICAL_HOST
1817 # AC_CANONICAL_TARGET
1818 # -------------------
1819 AC_DEFUN_ONCE([AC_CANONICAL_TARGET],
1820 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1821 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1822 m4_divert_once([HELP_CANON],
1823 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1824 AC_CACHE_CHECK([target system type], [ac_cv_target],
1825 [if test "x$target_alias" = x; then
1826 ac_cv_target=$ac_cv_host
1828 ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
1829 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
1832 _AC_CANONICAL_SPLIT([target])
1834 # The aliases save the names the user supplied, while $host etc.
1835 # will get canonicalized.
1836 test -n "$target_alias" &&
1837 test "$program_prefix$program_suffix$program_transform_name" = \
1839 program_prefix=${target_alias}-[]dnl
1840 ])# AC_CANONICAL_TARGET
1843 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1846 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1847 # ------------------------------------------
1848 # If the cache file is inconsistent with the current host,
1849 # target and build system types, execute CMD or print a default
1850 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1851 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1854 ## ---------------------- ##
1855 ## Caching test results. ##
1856 ## ---------------------- ##
1861 # Look for site- or system-specific initialization scripts.
1862 m4_define([AC_SITE_LOAD],
1863 [# Prefer an explicitly selected file to automatically selected ones.
1866 if test -n "$CONFIG_SITE"; then
1867 ac_site_file1=$CONFIG_SITE
1868 elif test "x$prefix" != xNONE; then
1869 ac_site_file1=$prefix/share/config.site
1870 ac_site_file2=$prefix/etc/config.site
1872 ac_site_file1=$ac_default_prefix/share/config.site
1873 ac_site_file2=$ac_default_prefix/etc/config.site
1875 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
1877 test "x$ac_site_file" = xNONE && continue
1878 if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
1879 AC_MSG_NOTICE([loading site script $ac_site_file])
1880 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1889 m4_define([AC_CACHE_LOAD],
1890 [if test -r "$cache_file"; then
1891 # Some versions of bash will fail to source /dev/null (special files
1892 # actually), so we avoid doing that. DJGPP emulates it as a regular file.
1893 if test /dev/null != "$cache_file" && test -f "$cache_file"; then
1894 AC_MSG_NOTICE([loading cache $cache_file])
1896 [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
1897 *) . "./$cache_file";;
1901 AC_MSG_NOTICE([creating cache $cache_file])
1909 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1910 m4_define([_AC_CACHE_DUMP],
1911 [# The following way of writing the cache mishandles newlines in values,
1912 # but we know of no workaround that is simple, portable, and efficient.
1913 # So, we kill variables containing newlines.
1914 # Ultrix sh set writes to stderr and can't be redirected directly,
1915 # and sets the high bit in the cache file unless we assign to the vars.
1917 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1918 eval ac_val=\$$ac_var
1922 *_cv_*) AC_MSG_WARN([cache variable $ac_var contains a newline]) ;;
1925 _ | IFS | as_nl) ;; #(
1926 BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
1927 *) AS_UNSET([$ac_var]) ;;
1933 case $as_nl`(ac_space=' '; set) 2>&1` in #(
1934 *${as_nl}ac_space=\ *)
1935 # `set' does not quote correctly, so add quotes: double-quote
1936 # substitution turns \\\\ into \\, and sed turns \\ into \.
1939 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
1942 # `set' quotes correctly as required by POSIX, so do not add quotes.
1943 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
1954 # Allow a site initialization script to override cache values.
1955 m4_define([AC_CACHE_SAVE],
1956 [cat >confcache <<\_ACEOF
1957 # This file is a shell script that caches the results of configure
1958 # tests run on this system so they can be shared between configure
1959 # scripts and configure runs, see configure's option --config-cache.
1960 # It is not useful on other systems. If it contains results you don't
1961 # want to keep, you may remove or edit it.
1963 # config.status only pays attention to the cache file if you give it
1964 # the --recheck option to rerun configure.
1966 # `ac_cv_env_foo' variables (set or unset) will be overridden when
1967 # loading this file, other *unset* `ac_cv_foo' will be assigned the
1977 s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
1979 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
1981 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
1982 if test -w "$cache_file"; then
1983 test "x$cache_file" != "x/dev/null" &&
1984 AC_MSG_NOTICE([updating cache $cache_file])
1985 cat confcache >$cache_file
1987 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
1990 rm -f confcache[]dnl
1994 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
1995 # ------------------------------------------
1996 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
1997 # Should be dnl'ed. Try to catch common mistakes.
1998 m4_defun([AC_CACHE_VAL],
1999 [AS_LITERAL_IF([$1], [m4_if(m4_index(m4_quote($1), [_cv_]), [-1],
2000 [AC_DIAGNOSE([syntax],
2001 [$0($1, ...): suspicious cache-id, must contain _cv_ to be cached])])])dnl
2002 m4_if(m4_index([$2], [AC_DEFINE]), [-1], [],
2003 [AC_DIAGNOSE([syntax],
2004 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
2005 [where no actions should be taken])])dnl
2006 m4_if(m4_index([$2], [AC_SUBST]), [-1], [],
2007 [AC_DIAGNOSE([syntax],
2008 [$0($1, ...): suspicious presence of an AC_SUBST in the second argument, ]dnl
2009 [where no actions should be taken])])dnl
2011 [_AS_ECHO_N([(cached) ])],
2016 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
2017 # -------------------------------------------
2018 # Do not call this macro with a dnl right behind.
2019 m4_defun([AC_CACHE_CHECK],
2020 [AC_MSG_CHECKING([$1])
2021 AC_CACHE_VAL([$2], [$3])dnl
2023 [AC_MSG_RESULT([$$2])],
2024 [AS_VAR_COPY([ac_res], [$2])
2025 AC_MSG_RESULT([$ac_res])])dnl
2028 # _AC_CACHE_CHECK_INT(MESSAGE, CACHE-ID, EXPRESSION,
2029 # [PROLOGUE = DEFAULT-INCLUDES], [IF-FAILS])
2030 # -------------------------------------------------------------
2031 AC_DEFUN([_AC_CACHE_CHECK_INT],
2032 [AC_CACHE_CHECK([$1], [$2],
2033 [AC_COMPUTE_INT([$2], [$3], [$4], [$5])])
2034 ])# _AC_CACHE_CHECK_INT
2038 ## ---------------------- ##
2039 ## Defining CPP symbols. ##
2040 ## ---------------------- ##
2043 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
2044 # -------------------------------------------
2045 # Used by --trace to collect the list of AC_DEFINEd macros.
2046 m4_define([AC_DEFINE_TRACE_LITERAL],
2047 [m4_pattern_allow([^$1$])dnl
2048 AS_IDENTIFIER_IF([$1], [],
2049 [m4_warn([syntax], [AC_DEFINE: not an identifier: $1])])dnl
2050 ])# AC_DEFINE_TRACE_LITERAL
2053 # AC_DEFINE_TRACE(CPP-SYMBOL)
2054 # ---------------------------
2055 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
2056 # out non literal symbols. CPP-SYMBOL must not include any parameters.
2057 m4_define([AC_DEFINE_TRACE],
2058 [AS_LITERAL_IF([$1], [AC_DEFINE_TRACE_LITERAL(_m4_expand([$1]))])])
2061 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
2062 # -------------------------------------------
2063 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
2064 # and if VARIABLE is affected the same VALUE, do nothing, else
2065 # die. The third argument is used by autoheader.
2066 m4_define([AC_DEFINE], [_AC_DEFINE_Q([_$0], $@)])
2068 # _AC_DEFINE(STRING)
2069 # ------------------
2070 # Append the pre-expanded STRING and a newline to confdefs.h, as if by
2071 # a quoted here-doc.
2072 m4_define([_AC_DEFINE],
2073 [AS_ECHO(["AS_ESCAPE([[$1]])"]) >>confdefs.h])
2076 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
2077 # ----------------------------------------------------
2078 # Similar, but perform shell substitutions $ ` \ once on VALUE, as
2079 # in an unquoted here-doc.
2080 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([_$0], $@)])
2082 # _AC_DEFINE_UNQUOTED(STRING)
2083 # ---------------------------
2084 # Append the pre-expanded STRING and a newline to confdefs.h, as if
2085 # with an unquoted here-doc, but avoiding a fork in the common case of
2086 # no backslash, no command substitution, no complex variable
2087 # substitution, and no quadrigraphs.
2088 m4_define([_AC_DEFINE_UNQUOTED],
2089 [m4_if(m4_bregexp([$1], [\\\|`\|\$(\|\${\|@]), [-1],
2090 [AS_ECHO(["AS_ESCAPE([$1], [""])"]) >>confdefs.h],
2091 [cat >>confdefs.h <<_ACEOF
2096 # _AC_DEFINE_Q(MACRO, VARIABLE, [VALUE], [DESCRIPTION])
2097 # -----------------------------------------------------
2098 # Internal function that performs common elements of AC_DEFINE{,_UNQUOTED}.
2099 # MACRO must take one argument, which is the fully expanded string to
2100 # append to confdefs.h as if by a possibly-quoted here-doc.
2102 # m4_index is roughly 5 to 8 times faster than m4_bpatsubst, so we use
2103 # m4_format rather than regex to grab prefix up to first (). AC_name
2104 # is defined with over-quotation, so that we can avoid m4_defn; this
2105 # is only safe because the name should not contain $.
2107 # Guarantee a match in m4_index, so as to avoid a bug with precision
2108 # -1 in m4_format in older m4.
2109 m4_define([_AC_DEFINE_Q],
2110 [m4_pushdef([AC_name], m4_format([[[%.*s]]], m4_index([$2(], [(]), [$2]))]dnl
2111 [AC_DEFINE_TRACE(AC_name)]dnl
2112 [m4_cond([m4_index([$3], [
2114 [AS_LITERAL_IF([$3], [m4_bregexp([[$3]], [[^\\]
2116 [m4_warn([syntax], [AC_DEFINE]m4_if([$1], [_AC_DEFINE], [],
2117 [[_UNQUOTED]])[: `$3' is not a valid preprocessor define value])])]dnl
2118 [m4_ifval([$4], [AH_TEMPLATE(AC_name, [$4])
2119 ])_m4_popdef([AC_name])]dnl
2120 [$1(m4_expand([[@%:@define] $2 ]m4_if([$#], 2, 1,
2121 [$3], [], [/**/], [[$3]])))
2126 ## -------------------------- ##
2127 ## Setting output variables. ##
2128 ## -------------------------- ##
2131 # AC_SUBST_TRACE(VARIABLE)
2132 # ------------------------
2133 # This macro is used with --trace to collect the list of substituted variables.
2134 m4_define([AC_SUBST_TRACE])
2137 # AC_SUBST(VARIABLE, [VALUE])
2138 # ---------------------------
2139 # Create an output variable from a shell VARIABLE. If VALUE is given
2140 # assign it to VARIABLE. Use `""' if you want to set VARIABLE to an
2141 # empty value, not an empty second argument.
2143 m4_define([AC_SUBST],
2144 [AS_IDENTIFIER_IF([$1], [],
2145 [m4_fatal([$0: `$1' is not a valid shell variable name])])]dnl
2146 [AC_SUBST_TRACE([$1])]dnl
2147 [m4_pattern_allow([^$1$])]dnl
2148 [m4_ifvaln([$2], [$1=$2])[]]dnl
2149 [m4_set_add([_AC_SUBST_VARS], [$1])])# AC_SUBST
2152 # AC_SUBST_FILE(VARIABLE)
2153 # -----------------------
2154 # Read the comments of the preceding macro.
2155 m4_define([AC_SUBST_FILE],
2156 [m4_pattern_allow([^$1$])dnl
2157 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2162 ## --------------------------------------- ##
2163 ## Printing messages at autoconf runtime. ##
2164 ## --------------------------------------- ##
2166 # In fact, I think we should promote the use of m4_warn and m4_fatal
2167 # directly. This will also avoid to some people to get it wrong
2168 # between AC_FATAL and AC_MSG_ERROR.
2171 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2172 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2173 # --------------------------------
2174 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2175 m4_define([AC_FATAL], [m4_fatal($@)])
2178 # AC_WARNING(MESSAGE)
2179 # -------------------
2180 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2182 m4_define([AC_WARNING],
2183 [AC_DIAGNOSE([syntax], [$1])])
2188 ## ---------------------------------------- ##
2189 ## Printing messages at configure runtime. ##
2190 ## ---------------------------------------- ##
2193 # AC_MSG_CHECKING(FEATURE)
2194 # ------------------------
2195 m4_define([AC_MSG_CHECKING],
2196 [{ _AS_ECHO_LOG([checking $1])
2197 _AS_ECHO_N([checking $1... ]); }dnl
2201 # AC_MSG_RESULT(RESULT)
2202 # ---------------------
2203 m4_define([AC_MSG_RESULT],
2204 [{ _AS_ECHO_LOG([result: $1])
2205 _AS_ECHO([$1]); }dnl
2209 # AC_MSG_WARN(PROBLEM)
2210 # AC_MSG_NOTICE(STRING)
2211 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2212 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2213 # ----------------------------------------
2214 m4_copy([AS_WARN], [AC_MSG_WARN])
2215 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2216 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2217 m4_define([AC_MSG_FAILURE],
2218 [{ AS_MESSAGE([error: in `$ac_pwd':], 2)
2220 See `config.log' for more details.], [$2]); }])
2223 # _AC_MSG_LOG_CONFTEST
2224 # --------------------
2225 m4_define([_AC_MSG_LOG_CONFTEST],
2226 [AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD
2227 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2231 # AU::AC_CHECKING(FEATURE)
2232 # ------------------------
2233 AU_DEFUN([AC_CHECKING],
2234 [AS_MESSAGE([checking $1...])])
2237 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2238 # ----------------------------------
2239 # No escaping, so it performed also backtick substitution.
2240 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2241 [_AS_ECHO_UNQUOTED([$as_me:${as_lineno-$LINENO}: result: $1], AS_MESSAGE_LOG_FD)
2242 _AS_ECHO_UNQUOTED([$1])[]dnl
2246 # AU::AC_VERBOSE(STRING)
2247 # ----------------------
2248 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2255 ## ---------------------------- ##
2256 ## Compiler-running mechanics. ##
2257 ## ---------------------------- ##
2260 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2261 # ----------------------------------
2262 # Eval COMMAND, save the exit status in ac_status, and log it. The return
2263 # code is 0 if COMMAND succeeded, so that it can be used directly in AS_IF
2265 AC_DEFUN([_AC_RUN_LOG],
2266 [{ { $2; } >&AS_MESSAGE_LOG_FD
2267 ($1) 2>&AS_MESSAGE_LOG_FD
2269 _AS_ECHO_LOG([\$? = $ac_status])
2270 test $ac_status = 0; }])
2273 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2274 # -----------------------------------------
2275 # Run COMMAND, save its stderr into conftest.err, save the exit status
2276 # in ac_status, and log it. Don't forget to clean up conftest.err after
2278 # Note that when tracing, most shells will leave the traces in stderr
2279 # starting with "+": that's what this macro tries to address.
2280 # The return code is 0 if COMMAND succeeded, so that it can be used directly
2281 # in AS_IF constructs.
2282 AC_DEFUN([_AC_RUN_LOG_STDERR],
2283 [{ { $2; } >&AS_MESSAGE_LOG_FD
2286 if test -s conftest.err; then
2287 grep -v '^ *+' conftest.err >conftest.er1
2288 cat conftest.er1 >&AS_MESSAGE_LOG_FD
2289 mv -f conftest.er1 conftest.err
2291 _AS_ECHO_LOG([\$? = $ac_status])
2292 test $ac_status = 0; }])
2295 # _AC_RUN_LOG_LIMIT(COMMAND, LOG-COMMANDS, [LINES])
2296 # -------------------------------------------------
2297 # Like _AC_RUN_LOG, but only log LINES lines from stderr,
2298 # defaulting to 10 lines.
2299 AC_DEFUN([_AC_RUN_LOG_LIMIT],
2300 [{ { $2; } >&AS_MESSAGE_LOG_FD
2303 if test -s conftest.err; then
2304 sed 'm4_default([$3], [10])a\
2305 ... rest of stderr output deleted ...
2306 m4_default([$3], [10])q' conftest.err >conftest.er1
2307 cat conftest.er1 >&AS_MESSAGE_LOG_FD
2309 rm -f conftest.er1 conftest.err
2310 _AS_ECHO_LOG([\$? = $ac_status])
2311 test $ac_status = 0; }])
2314 # _AC_DO_ECHO(COMMAND)
2315 # --------------------
2316 # Echo COMMAND. This is designed to be used just before evaluating COMMAND.
2317 AC_DEFUN([_AC_DO_ECHO],
2318 [m4_if([$1], [$ac_try], [], [ac_try="$1"
2320 dnl If the string contains '\"', '`', or '\\', then just echo it rather
2321 dnl than expanding it. This is a hack, but it is safer, while also
2322 dnl typically expanding simple substrings like '$CC', which is what we want.
2324 dnl Much of this macro body is quoted, to work around misuses like
2325 dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
2326 dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
2327 dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
2328 dnl underquoting misuses, such as
2329 dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
2330 dnl We normally wouldn't bother with this kind of workaround for invalid code
2331 dnl but this change was put in just before Autoconf 2.60 and we wanted to
2332 dnl minimize the integration hassle.
2333 [[case "(($ac_try" in
2334 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
2335 *) ac_try_echo=$ac_try;;
2337 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""]
2338 AS_ECHO(["$ac_try_echo"])])
2342 # Eval COMMAND, save the exit status in ac_status, and log it.
2343 # For internal use only.
2345 [_AC_RUN_LOG([eval "$1"],
2346 [_AC_DO_ECHO([$1])])])
2349 # _AC_DO_STDERR(COMMAND)
2350 # ----------------------
2351 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2352 AC_DEFUN([_AC_DO_STDERR],
2353 [_AC_RUN_LOG_STDERR([eval "$1"],
2354 [_AC_DO_ECHO([$1])])])
2357 # _AC_DO_VAR(VARIABLE)
2358 # --------------------
2359 # Evaluate "$VARIABLE", which should be a valid shell command.
2360 # The purpose of this macro is to write "configure:123: command line"
2361 # into config.log for every test run.
2362 AC_DEFUN([_AC_DO_VAR],
2366 # _AC_DO_TOKENS(COMMAND)
2367 # ----------------------
2368 # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
2369 # tokens of the shell command language.
2370 AC_DEFUN([_AC_DO_TOKENS],
2372 _AC_DO([$ac_try]); }])
2375 # _AC_DO_LIMIT(COMMAND, [LINES])
2376 # ------------------------------
2377 # Like _AC_DO, but limit the amount of stderr lines logged to LINES.
2378 # For internal use only.
2379 AC_DEFUN([_AC_DO_LIMIT],
2380 [_AC_RUN_LOG_LIMIT([eval "$1"],
2381 [_AC_DO_ECHO([$1])], [$2])])
2386 # Eval COMMAND, save the exit status in ac_status, and log it.
2387 # Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
2388 # It is present only for backward compatibility with previous Autoconf versions.
2389 AC_DEFUN([_AC_EVAL],
2390 [_AC_RUN_LOG([eval $1],
2391 [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])])
2394 # _AC_EVAL_STDERR(COMMAND)
2395 # ------------------------
2396 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2397 # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
2398 # It is present only for backward compatibility with previous Autoconf versions.
2399 AC_DEFUN([_AC_EVAL_STDERR],
2400 [_AC_RUN_LOG_STDERR([eval $1],
2401 [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])])
2404 # AC_TRY_EVAL(VARIABLE)
2405 # ---------------------
2406 # Evaluate $VARIABLE, which should be a valid shell command.
2407 # The purpose of this macro is to write "configure:123: command line"
2408 # into config.log for every test run.
2410 # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
2411 # undocumented, and should not be used.
2412 # They may be removed or their API changed in a future release.
2413 # Autoconf itself no longer uses these two macros; they are present
2414 # only for backward compatibility with previous versions of Autoconf.
2415 # Not every shell command will work due to problems with eval
2416 # and quoting, and the rules for exactly what does work are tricky.
2417 # Worse, due to double-expansion during evaluation, arbitrary unintended
2418 # shell commands could be executed in some situations.
2419 AC_DEFUN([AC_TRY_EVAL],
2423 # AC_TRY_COMMAND(COMMAND)
2424 # -----------------------
2425 # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
2426 # tokens of the shell command language.
2427 # This macro should not be used; see the comments under AC_TRY_EVAL for why.
2428 AC_DEFUN([AC_TRY_COMMAND],
2430 _AC_EVAL([$ac_try]); }])
2433 # AC_RUN_LOG(COMMAND)
2434 # -------------------
2435 AC_DEFUN([AC_RUN_LOG],
2437 [AS_ECHO(["$as_me:${as_lineno-$LINENO}: AS_ESCAPE([$1])"])])])
2442 ## ------------------------ ##
2443 ## Examining declarations. ##
2444 ## ------------------------ ##
2447 # _AC_PREPROC_IFELSE_BODY
2448 # -----------------------
2449 # Shell function body for _AC_PREPROC_IFELSE.
2450 m4_define([_AC_PREPROC_IFELSE_BODY],
2451 [ AS_LINENO_PUSH([$[]1])
2452 AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null && {
2453 test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2454 test ! -s conftest.err
2457 [_AC_MSG_LOG_CONFTEST
2460 AS_SET_STATUS([$ac_retval])
2461 ])# _AC_PREPROC_IFELSE_BODY
2464 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2465 # ----------------------------------------------------------------
2466 # Try to preprocess PROGRAM.
2468 # This macro can be used during the selection of a preprocessor.
2469 # eval is necessary to expand ac_cpp.
2470 AC_DEFUN([_AC_PREPROC_IFELSE],
2471 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_cpp],
2472 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_cpp], [LINENO],
2473 [Try to preprocess conftest.$ac_ext, and return whether this succeeded.])],
2475 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2476 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_cpp "$LINENO"], [$2], [$3])
2477 rm -f conftest.err[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2478 ])# _AC_PREPROC_IFELSE
2480 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2481 # ---------------------------------------------------------------
2482 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2483 # current language was checked for, hence do not use this macro in macros
2484 # looking for a preprocessor.
2485 AC_DEFUN([AC_PREPROC_IFELSE],
2486 [AC_LANG_PREPROC_REQUIRE()dnl
2487 _AC_PREPROC_IFELSE($@)])
2490 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2491 # ---------------------------------------------------------
2492 # AC_TRY_CPP is used to check whether particular header files exist.
2493 # (But it actually tests whether INCLUDES produces no CPP errors.)
2495 # INCLUDES are not defaulted and are double quoted.
2496 AU_DEFUN([AC_TRY_CPP],
2497 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2500 # AC_EGREP_CPP(PATTERN, PROGRAM,
2501 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2502 # ------------------------------------------------------
2503 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2504 # come early, it is not included in AC_BEFORE checks.
2505 AC_DEFUN([AC_EGREP_CPP],
2506 [AC_LANG_PREPROC_REQUIRE()dnl
2507 AC_REQUIRE([AC_PROG_EGREP])dnl
2508 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2509 AS_IF([dnl eval is necessary to expand ac_cpp.
2510 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2511 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2512 dnl Quote $1 to prevent m4 from eating character classes
2513 $EGREP "[$1]" >/dev/null 2>&1],
2520 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2521 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2522 # ---------------------------------------------------------
2523 AC_DEFUN([AC_EGREP_HEADER],
2531 ## ------------------ ##
2532 ## Examining syntax. ##
2533 ## ------------------ ##
2535 # _AC_COMPILE_IFELSE_BODY
2536 # -----------------------
2537 # Shell function body for _AC_COMPILE_IFELSE.
2538 m4_define([_AC_COMPILE_IFELSE_BODY],
2539 [ AS_LINENO_PUSH([$[]1])
2540 rm -f conftest.$ac_objext
2541 AS_IF([_AC_DO_STDERR($ac_compile) && {
2542 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2543 test ! -s conftest.err
2544 } && test -s conftest.$ac_objext],
2546 [_AC_MSG_LOG_CONFTEST
2549 AS_SET_STATUS([$ac_retval])
2550 ])# _AC_COMPILE_IFELSE_BODY
2553 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2554 # ----------------------------------------------------------------
2555 # Try to compile PROGRAM.
2556 # This macro can be used during the selection of a compiler.
2557 AC_DEFUN([_AC_COMPILE_IFELSE],
2558 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_compile],
2559 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_compile], [LINENO],
2560 [Try to compile conftest.$ac_ext, and return whether this succeeded.])],
2562 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2563 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_compile "$LINENO"], [$2], [$3])
2564 rm -f core conftest.err conftest.$ac_objext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2565 ])# _AC_COMPILE_IFELSE
2568 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2569 # ---------------------------------------------------------------
2570 # Try to compile PROGRAM. Requires that the compiler for the current
2571 # language was checked for, hence do not use this macro in macros looking
2573 AC_DEFUN([AC_COMPILE_IFELSE],
2574 [AC_LANG_COMPILER_REQUIRE()dnl
2575 _AC_COMPILE_IFELSE($@)])
2578 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2579 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2580 # ---------------------------------------------------
2581 AU_DEFUN([AC_TRY_COMPILE],
2582 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2586 ## --------------------- ##
2587 ## Examining libraries. ##
2588 ## --------------------- ##
2591 # _AC_LINK_IFELSE_BODY
2592 # --------------------
2593 # Shell function body for _AC_LINK_IFELSE.
2594 m4_define([_AC_LINK_IFELSE_BODY],
2595 [ AS_LINENO_PUSH([$[]1])
2596 rm -f conftest.$ac_objext conftest$ac_exeext
2597 AS_IF([_AC_DO_STDERR($ac_link) && {
2598 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2599 test ! -s conftest.err
2600 } && test -s conftest$ac_exeext && {
2601 test "$cross_compiling" = yes ||
2602 AS_TEST_X([conftest$ac_exeext])
2605 [_AC_MSG_LOG_CONFTEST
2607 # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
2608 # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
2609 # interfere with the next link command; also delete a directory that is
2610 # left behind by Apple's compiler. We do this before executing the actions.
2611 rm -rf conftest.dSYM conftest_ipa8_conftest.oo
2613 AS_SET_STATUS([$ac_retval])
2614 ])# _AC_LINK_IFELSE_BODY
2617 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2618 # -------------------------------------------------------------
2619 # Try to link PROGRAM.
2620 # This macro can be used during the selection of a compiler.
2622 # Test that resulting file is executable; see the problem reported by mwoehlke
2623 # in <http://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00048.html>.
2624 # But skip the test when cross-compiling, to prevent problems like the one
2625 # reported by Chris Johns in
2626 # <http://lists.gnu.org/archive/html/autoconf/2007-03/msg00085.html>.
2628 AC_DEFUN([_AC_LINK_IFELSE],
2629 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_link],
2630 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_link], [LINENO],
2631 [Try to link conftest.$ac_ext, and return whether this succeeded.])],
2633 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2634 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_link "$LINENO"], [$2], [$3])
2635 rm -f core conftest.err conftest.$ac_objext \
2636 conftest$ac_exeext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2640 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2641 # ------------------------------------------------------------
2642 # Try to link PROGRAM. Requires that the compiler for the current
2643 # language was checked for, hence do not use this macro in macros looking
2645 AC_DEFUN([AC_LINK_IFELSE],
2646 [AC_LANG_COMPILER_REQUIRE()dnl
2647 _AC_LINK_IFELSE($@)])
2650 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2651 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2652 # ------------------------------------------------
2653 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2654 AU_DEFUN([AC_TRY_LINK],
2655 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2658 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2659 # ACTION-IF-TRUE, [ACTION-IF-FALSE])
2660 # ---------------------------------------------------
2661 AU_DEFUN([AC_COMPILE_CHECK],
2662 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2663 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2668 ## ------------------------------- ##
2669 ## Checking for runtime features. ##
2670 ## ------------------------------- ##
2673 # _AC_RUN_IFELSE_BODY
2674 # -------------------
2675 # Shell function body for _AC_RUN_IFELSE.
2676 m4_define([_AC_RUN_IFELSE_BODY],
2677 [ AS_LINENO_PUSH([$[]1])
2678 AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
2680 [AS_ECHO(["$as_me: program exited with status $ac_status"]) >&AS_MESSAGE_LOG_FD
2681 _AC_MSG_LOG_CONFTEST
2682 ac_retval=$ac_status])
2683 rm -rf conftest.dSYM conftest_ipa8_conftest.oo
2685 AS_SET_STATUS([$ac_retval])
2686 ])# _AC_RUN_IFELSE_BODY
2689 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2690 # ------------------------------------------------------------
2691 # Compile, link, and run.
2692 # This macro can be used during the selection of a compiler.
2693 # We also remove conftest.o as if the compilation fails, some compilers
2694 # don't remove it. We remove gmon.out and bb.out, which may be
2695 # created during the run if the program is built with profiling support.
2696 AC_DEFUN([_AC_RUN_IFELSE],
2697 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_run],
2698 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_run], [LINENO],
2699 [Try to link conftest.$ac_ext, and return whether this succeeded.
2700 Assumes that executables *can* be run.])],
2702 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2703 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_run "$LINENO"], [$2], [$3])
2704 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
2705 conftest.$ac_objext conftest.beam[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2708 # AC_RUN_IFELSE(PROGRAM,
2709 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2710 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2711 # ----------------------------------------------------------
2712 # Compile, link, and run. Requires that the compiler for the current
2713 # language was checked for, hence do not use this macro in macros looking
2715 AC_DEFUN([AC_RUN_IFELSE],
2716 [AC_LANG_COMPILER_REQUIRE()dnl
2718 [AC_DIAGNOSE([cross],
2719 [$0 called without default to allow cross compiling])])dnl
2720 AS_IF([test "$cross_compiling" = yes],
2722 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2723 [_AC_RUN_IFELSE($@)])
2727 # AC_TRY_RUN(PROGRAM,
2728 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2729 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2730 # --------------------------------------------------------
2731 AU_DEFUN([AC_TRY_RUN],
2732 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2736 ## ------------------------------------- ##
2737 ## Checking for the existence of files. ##
2738 ## ------------------------------------- ##
2740 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2741 # -------------------------------------------------------------
2743 # Check for the existence of FILE.
2744 AC_DEFUN([AC_CHECK_FILE],
2745 [AC_DIAGNOSE([cross],
2746 [cannot check for file existence when cross compiling])dnl
2747 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2748 AC_CACHE_CHECK([for $1], [ac_File],
2749 [test "$cross_compiling" = yes &&
2750 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2751 if test -r "$1"; then
2752 AS_VAR_SET([ac_File], [yes])
2754 AS_VAR_SET([ac_File], [no])
2756 AS_VAR_IF([ac_File], [yes], [$2], [$3])
2757 AS_VAR_POPDEF([ac_File])dnl
2761 # _AC_CHECK_FILES(FILE)
2762 # ---------------------
2763 # Helper to AC_CHECK_FILES, which generates two of the three arguments
2764 # to AC_CHECK_FILE based on FILE.
2765 m4_define([_AC_CHECK_FILES],
2766 [[$1], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1],
2767 [Define to 1 if you have the file `$1'.])]])
2770 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2771 # -----------------------------------------------------------------
2772 # For each word in the whitespace-separated FILE list, perform either
2773 # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND. For files that exist, also
2774 # provide the preprocessor variable HAVE_FILE.
2775 AC_DEFUN([AC_CHECK_FILES],
2776 [m4_map_args_w([$1], [AC_CHECK_FILE(_$0(], [)[$2], [$3])])])
2779 ## ------------------------------- ##
2780 ## Checking for declared symbols. ##
2781 ## ------------------------------- ##
2784 # _AC_CHECK_DECL_BODY
2785 # -------------------
2786 # Shell function body for AC_CHECK_DECL.
2787 m4_define([_AC_CHECK_DECL_BODY],
2788 [ AS_LINENO_PUSH([$[]1])
2789 AC_CACHE_CHECK([whether $[]2 is declared], [$[]3],
2790 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]4],
2795 [AS_VAR_SET([$[]3], [yes])],
2796 [AS_VAR_SET([$[]3], [no])])])
2798 ])# _AC_CHECK_DECL_BODY
2800 # AC_CHECK_DECL(SYMBOL,
2801 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2802 # [INCLUDES = DEFAULT-INCLUDES])
2803 # -------------------------------------------------------
2804 # Check whether SYMBOL (a function, variable, or constant) is declared.
2805 AC_DEFUN([AC_CHECK_DECL],
2806 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_check_decl],
2807 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_check_decl],
2808 [LINENO SYMBOL VAR],
2809 [Tests whether SYMBOL is declared, setting cache variable VAR accordingly.])],
2811 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])]dnl
2812 [ac_fn_[]_AC_LANG_ABBREV[]_check_decl ]dnl
2813 ["$LINENO" "$1" "ac_Symbol" "AS_ESCAPE([AC_INCLUDES_DEFAULT([$4])], [""])"
2814 AS_VAR_IF([ac_Symbol], [yes], [$2], [$3])
2815 AS_VAR_POPDEF([ac_Symbol])dnl
2819 # _AC_CHECK_DECLS(SYMBOL, ACTION-IF_FOUND, ACTION-IF-NOT-FOUND,
2821 # -------------------------------------------------------------
2822 # Helper to AC_CHECK_DECLS, which generates the check for a single
2823 # SYMBOL with INCLUDES, performs the AC_DEFINE, then expands
2824 # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND.
2825 m4_define([_AC_CHECK_DECLS],
2826 [AC_CHECK_DECL([$1], [ac_have_decl=1], [ac_have_decl=0], [$4])]dnl
2827 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_$1]), [$ac_have_decl],
2828 [Define to 1 if you have the declaration of `$1',
2829 and to 0 if you don't.])]dnl
2830 [m4_ifvaln([$2$3], [AS_IF([test $ac_have_decl = 1], [$2], [$3])])])
2832 # AC_CHECK_DECLS(SYMBOLS,
2833 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2834 # [INCLUDES = DEFAULT-INCLUDES])
2835 # --------------------------------------------------------
2836 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2837 # documentation for a detailed explanation of this difference with
2838 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2839 AC_DEFUN([AC_CHECK_DECLS],
2840 [m4_map_args_sep([_$0(], [, [$2], [$3], [$4])], [], $1)])
2843 # _AC_CHECK_DECL_ONCE(SYMBOL)
2844 # ---------------------------
2845 # Check for a single SYMBOL once.
2846 m4_define([_AC_CHECK_DECL_ONCE],
2847 [AC_DEFUN([_AC_Check_Decl_$1], [_AC_CHECK_DECLS([$1])])]dnl
2848 [AC_REQUIRE([_AC_Check_Decl_$1])])
2850 # AC_CHECK_DECLS_ONCE(SYMBOLS)
2851 # ----------------------------
2852 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
2853 AC_DEFUN([AC_CHECK_DECLS_ONCE],
2854 [m4_map_args_sep([_AC_CHECK_DECL_ONCE(], [)], [], $1)])
2858 ## ---------------------------------- ##
2859 ## Replacement of library functions. ##
2860 ## ---------------------------------- ##
2863 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
2864 # -----------------------------
2865 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
2866 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
2867 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
2870 # AC_LIBSOURCE(FILE-NAME)
2871 # -----------------------
2872 # Announce we might need the file `FILE-NAME'.
2873 m4_define([AC_LIBSOURCE], [])
2876 # AC_LIBSOURCES([FILE-NAME1, ...])
2877 # -------------------------------
2878 # Announce we might need these files.
2879 AC_DEFUN([AC_LIBSOURCES],
2880 [m4_map_args([AC_LIBSOURCE], $1)])
2883 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
2884 # --------------------------------------------
2885 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2886 m4_define([_AC_LIBOBJ],
2887 [AS_LITERAL_IF([$1],
2888 [AC_LIBSOURCE([$1.c])],
2890 case " $LIB@&t@OBJS " in
2891 *" $1.$ac_objext "* ) ;;
2892 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
2897 # AC_LIBOBJ(FILE-NAME-NOEXT)
2898 # -------------------------
2899 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2900 AC_DEFUN([AC_LIBOBJ],
2902 [AC_DIAGNOSE(syntax,
2903 [$0($1): you should use literals])])dnl
2907 # _AC_LIBOBJS_NORMALIZE
2908 # ---------------------
2909 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
2910 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
2911 # Used with AC_CONFIG_COMMANDS_PRE.
2912 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
2915 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
2916 # 1. Remove the extension, and $U if already installed.
2917 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
2918 ac_i=`AS_ECHO(["$ac_i"]) | sed "$ac_script"`
2919 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
2920 # will be set to the directory where LIBOBJS objects are built.
2921 AS_VAR_APPEND([ac_libobjs], [" \${LIBOBJDIR}$ac_i\$U.$ac_objext"])
2922 AS_VAR_APPEND([ac_ltlibobjs], [" \${LIBOBJDIR}$ac_i"'$U.lo'])
2924 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
2925 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
2929 ## ----------------------------------- ##
2930 ## Checking compiler characteristics. ##
2931 ## ----------------------------------- ##
2934 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS],
2936 # ---------------------------------------------------------------------
2937 # Compute the integer EXPRESSION and store the result in the VARIABLE.
2938 # Works OK if cross compiling, but assumes twos-complement arithmetic.
2939 m4_define([_AC_COMPUTE_INT_COMPILE],
2940 [# Depending upon the size, compute the lo and hi bounds.
2941 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
2944 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2945 [ac_hi=$ac_mid; break],
2946 [AS_VAR_ARITH([ac_lo], [$ac_mid + 1])
2947 if test $ac_lo -le $ac_mid; then
2951 AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid + 1])])
2953 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
2956 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
2957 [ac_lo=$ac_mid; break],
2958 [AS_VAR_ARITH([ac_hi], ['(' $ac_mid ')' - 1])
2959 if test $ac_mid -le $ac_hi; then
2963 AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid])])
2966 # Binary search between lo and hi bounds.
2967 while test "x$ac_lo" != "x$ac_hi"; do
2968 AS_VAR_ARITH([ac_mid], ['(' $ac_hi - $ac_lo ')' / 2 + $ac_lo])
2969 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2971 [AS_VAR_ARITH([ac_lo], ['(' $ac_mid ')' + 1])])
2973 case $ac_lo in @%:@((
2974 ?*) AS_VAR_SET([$2], [$ac_lo]); $4 ;;
2977 ])# _AC_COMPUTE_INT_COMPILE
2980 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS],
2982 # -----------------------------------------------------------------
2983 # Store the evaluation of the integer EXPRESSION in VARIABLE.
2985 # AC_LANG_INT_SAVE intentionally does not end the file in a newline, so
2986 # we must add one to make it a text file before passing it to read.
2987 m4_define([_AC_COMPUTE_INT_RUN],
2988 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
2989 [echo >>conftest.val; read $2 <conftest.val; $4], [$5])
2991 ])# _AC_COMPUTE_INT_RUN
2994 # _AC_COMPUTE_INT_BODY
2995 # --------------------
2996 # Shell function body for AC_COMPUTE_INT.
2997 m4_define([_AC_COMPUTE_INT_BODY],
2998 [ AS_LINENO_PUSH([$[]1])
2999 if test "$cross_compiling" = yes; then
3000 _AC_COMPUTE_INT_COMPILE([$[]2], [$[]3], [$[]4],
3001 [ac_retval=0], [ac_retval=1])
3003 _AC_COMPUTE_INT_RUN([$[]2], [$[]3], [$[]4],
3004 [ac_retval=0], [ac_retval=1])
3007 AS_SET_STATUS([$ac_retval])
3008 ])# _AC_COMPUTE_INT_BODY
3010 # AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS])
3011 # ----------------------------------------------------------
3012 # Store into the shell variable VARIABLE the value of the integer C expression
3013 # EXPRESSION. The value should fit in an initializer in a C variable of type
3014 # `signed long'. If no PROLOGUE are specified, the default includes are used.
3015 # IF-FAILS is evaluated if the value cannot be found (which includes the
3016 # case of cross-compilation, if EXPRESSION is not computable at compile-time.
3017 AC_DEFUN([AC_COMPUTE_INT],
3018 [AC_LANG_COMPILER_REQUIRE()]dnl
3019 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_compute_int],
3020 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_compute_int],
3021 [LINENO EXPR VAR INCLUDES],
3022 [Tries to find the compile-time value of EXPR in a program that includes
3023 INCLUDES, setting VAR accordingly. Returns whether the value could
3026 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_compute_int "$LINENO" "$2" "$1" ]dnl
3027 ["AS_ESCAPE([$3], [""])"],
3031 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
3032 # -----------------------------------------------------------
3033 # FIXME: this private interface was used by several packages.
3034 # Give them time to transition to AC_COMPUTE_INT and then delete this one.
3035 AC_DEFUN([_AC_COMPUTE_INT],
3036 [AC_COMPUTE_INT([$2], [$1], [$3], [$4])
3037 AC_DIAGNOSE([obsolete],
3038 [The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a
3039 future version or Autoconf. Hence, it is suggested that you use
3040 instead the public AC_COMPUTE_INT macro. Note that the arguments are
3041 slightly different between the two.])dnl