1 # This file is part of Autoconf. -*- Autoconf -*-
2 # Parameterized macros.
3 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
4 # 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2, or (at your option)
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 # As a special exception, the Free Software Foundation gives unlimited
22 # permission to copy, distribute and modify the configure scripts that
23 # are the output of Autoconf. You need not follow the terms of the GNU
24 # General Public License when using or distributing such scripts, even
25 # though portions of the text of Autoconf appear in them. The GNU
26 # General Public License (GPL) does govern all other use of the material
27 # that constitutes the Autoconf program.
29 # Certain portions of the Autoconf source text are designed to be copied
30 # (in certain cases, depending on the input) into the output of
31 # Autoconf. We call these the "data" portions. The rest of the Autoconf
32 # source text consists of comments plus executable code that decides which
33 # of the data portions to output in any given case. We call these
34 # comments and executable code the "non-data" portions. Autoconf never
35 # copies any of the non-data portions into its output.
37 # This special exception to the GPL applies to versions of Autoconf
38 # released by the Free Software Foundation. When you make and
39 # distribute a modified version of Autoconf, you may extend this special
40 # exception to the GPL to apply to your modified version as well, *unless*
41 # your modified version has the potential to copy into its output some
42 # of the text that was the non-data portion of the version that you started
43 # with. (In other words, unless your change moves or copies text from
44 # the non-data portions to the data portions.) If your modification has
45 # such potential, you must delete any notice of this special exception
46 # to the GPL from your modified version.
48 # Written by David MacKenzie, with help from
49 # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
50 # Roland McGrath, Noah Friedman, david d zuhn, and many others.
53 ## ---------------- ##
55 ## ---------------- ##
58 # We heavily use m4's diversions both for the initializations and for
59 # required macros (see AC_REQUIRE), because in both cases we have to
60 # issue high in `configure' something which is discovered late.
62 # KILL is only used to suppress output.
64 # The layers of `configure'. We let m4 undivert them by itself, when
65 # it reaches the end of `configure.ac'.
72 # Purpose of the script.
76 # Initialization of bottom layers.
79 # early initializations (defaults)
81 # initialization code, option handling loop.
84 # Handling `configure --help'.
86 # Help msg for AC_CANONICAL_*
88 # Help msg from AC_ARG_ENABLE.
90 # Help msg from AC_ARG_WITH.
92 # Help msg from AC_ARG_VAR.
94 # A small paragraph on the use of the variables.
96 # Tail of the handling of --help.
99 # Head of the handling of --version.
101 # FSF copyright notice for --version.
103 # User copyright notice for --version.
105 # Tail of the handling of --version.
108 # Tail of initialization code.
111 # the tests and output code
115 # _m4_divert(DIVERSION-NAME)
116 # --------------------------
117 # Convert a diversion name into its number. Otherwise, return
118 # DIVERSION-NAME which is supposed to be an actual diversion number.
119 # Of course it would be nicer to use m4_case here, instead of zillions
120 # of little macros, but it then takes twice longer to run `autoconf'!
130 # 3. HEADER-COPYRIGHT
133 m4_define([_m4_divert(DEFAULTS)], 10)
134 m4_define([_m4_divert(PARSE_ARGS)], 20)
136 m4_define([_m4_divert(HELP_BEGIN)], 100)
137 m4_define([_m4_divert(HELP_CANON)], 101)
138 m4_define([_m4_divert(HELP_ENABLE)], 102)
139 m4_define([_m4_divert(HELP_WITH)], 103)
140 m4_define([_m4_divert(HELP_VAR)], 104)
141 m4_define([_m4_divert(HELP_VAR_END)], 105)
142 m4_define([_m4_divert(HELP_END)], 106)
144 m4_define([_m4_divert(VERSION_BEGIN)], 200)
145 m4_define([_m4_divert(VERSION_FSF)], 201)
146 m4_define([_m4_divert(VERSION_USER)], 202)
147 m4_define([_m4_divert(VERSION_END)], 203)
149 m4_define([_m4_divert(INIT_PREPARE)], 300)
153 # AC_DIVERT_PUSH(DIVERSION-NAME)
155 # ------------------------------
156 m4_copy([m4_divert_push],[AC_DIVERT_PUSH])
157 m4_copy([m4_divert_pop], [AC_DIVERT_POP])
161 ## ------------------------------------ ##
162 ## Defining/requiring Autoconf macros. ##
163 ## ------------------------------------ ##
166 # AC_DEFUN(NAME, EXPANSION)
167 # AC_DEFUN_ONCE(NAME, EXPANSION)
168 # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
170 # AC_PROVIDE(MACRO-NAME)
171 # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
172 # -----------------------------------------------------------
173 m4_copy([m4_defun], [AC_DEFUN])
174 m4_copy([m4_defun_once], [AC_DEFUN_ONCE])
175 m4_copy([m4_before], [AC_BEFORE])
176 m4_copy([m4_require], [AC_REQUIRE])
177 m4_copy([m4_provide], [AC_PROVIDE])
178 m4_copy([m4_provide_if], [AC_PROVIDE_IFELSE])
181 # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION])
182 # ------------------------------------------
183 m4_define([AC_OBSOLETE],
184 [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])])
188 ## ----------------------------- ##
189 ## Implementing Autoconf loops. ##
190 ## ----------------------------- ##
193 # AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION)
194 # ------------------------------------------
195 AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]])
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])
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])])
253 # AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER])
254 # ------------------------------------------------------
255 # Emit TEXT, a copyright notice, in the top of `configure' and in
256 # --version output. Macros in TEXT are evaluated once.
257 m4_define([AC_COPYRIGHT],
258 [AS_COPYRIGHT([$1])[]dnl
259 m4_divert_text(m4_default([$2], [VERSION_USER]),
265 # AC_REVISION(REVISION-INFO)
266 # --------------------------
267 # The second quote in the translit is just to cope with font-lock-mode
268 # which sees the opening of a string.
269 m4_define([AC_REVISION],
270 [m4_divert_text([HEADER-REVISION],
271 [@%:@ From __file__ m4_translit([$1], [$""]).])dnl
277 ## ---------------------------------------- ##
278 ## Requirements over the Autoconf version. ##
279 ## ---------------------------------------- ##
282 # AU::AC_PREREQ(VERSION)
283 # ----------------------
284 # Update this `AC_PREREQ' statement to require the current version of
285 # Autoconf. But fail if ever this autoupdate is too old.
287 # Note that `m4_defn([m4_PACKAGE_VERSION])' below are expanded before
288 # calling `AU_DEFUN', i.e., it is hard coded. Otherwise it would be
289 # quite complex for autoupdate to import the value of
290 # `m4_PACKAGE_VERSION'. We could `AU_DEFUN' `m4_PACKAGE_VERSION', but
291 # this would replace all its occurrences with the current version of
292 # Autoconf, which is certainly not what the user intended.
293 AU_DEFUN([AC_PREREQ],
294 [m4_version_prereq([$1])[]dnl
295 [AC_PREREQ(]]m4_defn([m4_PACKAGE_VERSION])[[)]])
300 # Complain and exit if the Autoconf version is less than VERSION.
301 m4_copy([m4_version_prereq], [AC_PREREQ])
308 ## ---------------- ##
309 ## Initialization. ##
310 ## ---------------- ##
313 # All the following macros are used by AC_INIT. Ideally, they should
314 # be presented in the order in which they are output. Please, help us
315 # sorting it, or at least, don't augment the entropy.
320 m4_define([_AC_INIT_NOTICE],
321 [m4_divert_text([HEADER-COMMENT],
322 [@%:@ Guess values for system-dependent variables and create Makefiles.
323 @%:@ Generated by m4_PACKAGE_STRING[]dnl
324 m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
326 m4_ifset([AC_PACKAGE_BUGREPORT],
327 [m4_divert_text([HEADER-COMMENT],
329 @%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
335 # We dump to VERSION_FSF to make sure we are inserted before the
336 # user copyrights, and after the setup of the --version handling.
337 m4_define([_AC_INIT_COPYRIGHT],
339 [Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
340 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
341 This configure script is free software; the Free Software Foundation
342 gives unlimited permission to copy, distribute and modify it.],
349 # Set up the file descriptors used by `configure'.
350 # File descriptor usage:
351 # 0 standard input (/dev/null)
353 # 2 errors and warnings
354 # AS_MESSAGE_LOG_FD compiler messages saved in config.log
355 # AS_MESSAGE_FD checking for... messages and results
356 # AS_ORIGINAL_STDIN_FD original standard input (still open)
358 # stdin is /dev/null because checks that run programs may
359 # inadvertently run interactive ones, which would stop configuration
360 # until someone typed an EOF.
361 m4_define([AS_MESSAGE_FD], 6)
362 m4_define([AS_ORIGINAL_STDIN_FD], 7)
363 # That's how they used to be named.
364 AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD])
365 AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
370 # Values which defaults can be set from `configure.ac'.
371 # `/bin/machine' is used in `glibcbug'. The others are used in config.*
372 m4_define([_AC_INIT_DEFAULTS],
373 [m4_divert_push([DEFAULTS])dnl
375 exec AS_ORIGINAL_STDIN_FD<&0 </dev/null AS_MESSAGE_FD>&1
378 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
379 # so uname gets run too.
380 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
385 ac_default_prefix=/usr/local
387 ac_config_libobj_dir=.
393 AC_SUBST([SHELL], [${CONFIG_SHELL-/bin/sh}])dnl
394 AC_SUBST([PATH_SEPARATOR])dnl
396 # Identity of this package.
397 AC_SUBST([PACKAGE_NAME],
398 [m4_ifdef([AC_PACKAGE_NAME], ['AC_PACKAGE_NAME'])])dnl
399 AC_SUBST([PACKAGE_TARNAME],
400 [m4_ifdef([AC_PACKAGE_TARNAME], ['AC_PACKAGE_TARNAME'])])dnl
401 AC_SUBST([PACKAGE_VERSION],
402 [m4_ifdef([AC_PACKAGE_VERSION], ['AC_PACKAGE_VERSION'])])dnl
403 AC_SUBST([PACKAGE_STRING],
404 [m4_ifdef([AC_PACKAGE_STRING], ['AC_PACKAGE_STRING'])])dnl
405 AC_SUBST([PACKAGE_BUGREPORT],
406 [m4_ifdef([AC_PACKAGE_BUGREPORT], ['AC_PACKAGE_BUGREPORT'])])dnl
408 m4_divert_pop([DEFAULTS])dnl
409 m4_wrap([m4_divert_text([DEFAULTS],
410 [ac_subst_vars='m4_ifdef([_AC_SUBST_VARS], [m4_defn([_AC_SUBST_VARS])])'
411 ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'
412 ac_user_opts=':enable_option_checking:m4_ifdef([_AC_USER_OPTS], [m4_defn([_AC_USER_OPTS]):])'
413 m4_ifdef([_AC_PRECIOUS_VARS],
414 [_AC_ARG_VAR_STORE[]dnl
415 _AC_ARG_VAR_VALIDATE[]dnl
416 ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
417 m4_ifdef([_AC_LIST_SUBDIRS],
418 [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
420 ])# _AC_INIT_DEFAULTS
423 # AC_PREFIX_DEFAULT(PREFIX)
424 # -------------------------
425 AC_DEFUN([AC_PREFIX_DEFAULT],
426 [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])])
429 # AC_PREFIX_PROGRAM(PROGRAM)
430 # --------------------------
431 # Guess the value for the `prefix' variable by looking for
432 # the argument program along PATH and taking its parent.
433 # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
434 # set `prefix' to /usr/local/gnu.
435 # This comes too late to find a site file based on the prefix,
436 # and it might use a cached value for the path.
437 # No big loss, I think, since most configures don't use this macro anyway.
438 AC_DEFUN([AC_PREFIX_PROGRAM],
439 [if test "x$prefix" = xNONE; then
440 dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle.
441 _AS_ECHO_N([checking for prefix by ])
442 AC_PATH_PROG(ac_prefix_program, [$1])
443 if test -n "$ac_prefix_program"; then
444 prefix=`AS_DIRNAME(["$ac_prefix_program"])`
445 prefix=`AS_DIRNAME(["$prefix"])`
448 ])# AC_PREFIX_PROGRAM
451 # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
452 # ---------------------------------------------
453 # UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
454 # relative to the directory that configure is in, which we can look
455 # for to find out if srcdir is correct.
456 AC_DEFUN([AC_CONFIG_SRCDIR],
457 [m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
462 # Set ac_pwd, and sanity-check it and the source and installation directories.
464 # (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
466 AC_DEFUN([_AC_INIT_DIRCHECK],
467 [m4_divert_push([PARSE_ARGS])dnl
469 ac_pwd=`pwd` && test -n "$ac_pwd" &&
470 ac_ls_di=`ls -di .` &&
471 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
472 AC_MSG_ERROR([Working directory cannot be determined])
473 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
474 AC_MSG_ERROR([pwd does not report name of working directory])
476 m4_divert_pop([PARSE_ARGS])dnl
477 ])# _AC_INIT_DIRCHECK
481 # Compute `srcdir' based on `$ac_unique_file'.
483 # (We have to AC_DEFUN it, since we use AC_REQUIRE.)
485 AC_DEFUN([_AC_INIT_SRCDIR],
486 [AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
487 m4_divert_push([PARSE_ARGS])dnl
489 # Find the source files, if location was not specified.
490 if test -z "$srcdir"; then
491 ac_srcdir_defaulted=yes
492 # Try the directory containing this script, then the parent directory.
493 ac_confdir=`AS_DIRNAME(["$[0]"])`
495 if test ! -r "$srcdir/$ac_unique_file"; then
499 ac_srcdir_defaulted=no
501 if test ! -r "$srcdir/$ac_unique_file"; then
502 test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
503 AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
505 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
507 cd "$srcdir" && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
509 # When building in place, set srcdir=.
510 if test "$ac_abs_confdir" = "$ac_pwd"; then
513 # Remove unnecessary trailing slashes from srcdir.
514 # Double slashes in file names in object file debugging info
515 # mess up M-x gdb in Emacs.
517 */) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
519 m4_divert_pop([PARSE_ARGS])dnl
523 # _AC_INIT_PARSE_ARGS
524 # -------------------
525 m4_define([_AC_INIT_PARSE_ARGS],
526 [m4_divert_push([PARSE_ARGS])dnl
528 # Initialize some variables set by options.
530 ac_init_version=false
531 ac_unrecognized_opts=
533 # The variables have the same names as the options, with
534 # dashes changed to underlines.
536 AC_SUBST(exec_prefix, NONE)dnl
539 AC_SUBST(prefix, NONE)dnl
542 AC_SUBST(program_transform_name, [s,x,x,])dnl
550 # Installation directory options.
551 # These are left unexpanded so users can "make install exec_prefix=/foo"
552 # and all the variables that are supposed to be based on exec_prefix
553 # by default will actually change.
554 # Use braces instead of parens because sh, perl, etc. also accept them.
555 # (The list follows the same order as the GNU Coding Standards.)
556 AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
557 AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
558 AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
559 AC_SUBST([datarootdir], ['${prefix}/share'])dnl
560 AC_SUBST([datadir], ['${datarootdir}'])dnl
561 AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
562 AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
563 AC_SUBST([localstatedir], ['${prefix}/var'])dnl
564 AC_SUBST([includedir], ['${prefix}/include'])dnl
565 AC_SUBST([oldincludedir], ['/usr/include'])dnl
566 AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
567 ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
568 ['${datarootdir}/doc/${PACKAGE}'])])dnl
569 AC_SUBST([infodir], ['${datarootdir}/info'])dnl
570 AC_SUBST([htmldir], ['${docdir}'])dnl
571 AC_SUBST([dvidir], ['${docdir}'])dnl
572 AC_SUBST([pdfdir], ['${docdir}'])dnl
573 AC_SUBST([psdir], ['${docdir}'])dnl
574 AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
575 AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
576 AC_SUBST([mandir], ['${datarootdir}/man'])dnl
582 # If the previous option needs an argument, assign it.
583 if test -n "$ac_prev"; then
584 eval $ac_prev=\$ac_option
590 *=*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
594 # Accept the important Cygnus configure options, so we can diagnose typos.
596 case $ac_dashdash$ac_option in
600 -bindir | --bindir | --bindi | --bind | --bin | --bi)
602 -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
605 -build | --build | --buil | --bui | --bu)
606 ac_prev=build_alias ;;
607 -build=* | --build=* | --buil=* | --bui=* | --bu=*)
608 build_alias=$ac_optarg ;;
610 -cache-file | --cache-file | --cache-fil | --cache-fi \
611 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
612 ac_prev=cache_file ;;
613 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
614 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
615 cache_file=$ac_optarg ;;
618 cache_file=config.cache ;;
620 -datadir | --datadir | --datadi | --datad)
622 -datadir=* | --datadir=* | --datadi=* | --datad=*)
623 datadir=$ac_optarg ;;
625 -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
626 | --dataroo | --dataro | --datar)
627 ac_prev=datarootdir ;;
628 -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
629 | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
630 datarootdir=$ac_optarg ;;
632 _AC_INIT_PARSE_ENABLE([disable])
634 -docdir | --docdir | --docdi | --doc | --do)
636 -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
639 -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
641 -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
644 _AC_INIT_PARSE_ENABLE([enable])
646 -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
647 | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
648 | --exec | --exe | --ex)
649 ac_prev=exec_prefix ;;
650 -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
651 | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
652 | --exec=* | --exe=* | --ex=*)
653 exec_prefix=$ac_optarg ;;
655 -gas | --gas | --ga | --g)
656 # Obsolete; use --with-gas.
659 -help | --help | --hel | --he | -h)
661 -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
662 ac_init_help=recursive ;;
663 -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
664 ac_init_help=short ;;
666 -host | --host | --hos | --ho)
667 ac_prev=host_alias ;;
668 -host=* | --host=* | --hos=* | --ho=*)
669 host_alias=$ac_optarg ;;
671 -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
673 -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
675 htmldir=$ac_optarg ;;
677 -includedir | --includedir | --includedi | --included | --include \
678 | --includ | --inclu | --incl | --inc)
679 ac_prev=includedir ;;
680 -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
681 | --includ=* | --inclu=* | --incl=* | --inc=*)
682 includedir=$ac_optarg ;;
684 -infodir | --infodir | --infodi | --infod | --info | --inf)
686 -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
687 infodir=$ac_optarg ;;
689 -libdir | --libdir | --libdi | --libd)
691 -libdir=* | --libdir=* | --libdi=* | --libd=*)
694 -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
695 | --libexe | --libex | --libe)
696 ac_prev=libexecdir ;;
697 -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
698 | --libexe=* | --libex=* | --libe=*)
699 libexecdir=$ac_optarg ;;
701 -localedir | --localedir | --localedi | --localed | --locale)
703 -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
704 localedir=$ac_optarg ;;
706 -localstatedir | --localstatedir | --localstatedi | --localstated \
707 | --localstate | --localstat | --localsta | --localst | --locals)
708 ac_prev=localstatedir ;;
709 -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
710 | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
711 localstatedir=$ac_optarg ;;
713 -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
715 -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
719 # Obsolete; use --without-fp.
722 -no-create | --no-create | --no-creat | --no-crea | --no-cre \
723 | --no-cr | --no-c | -n)
726 -no-recursion | --no-recursion | --no-recursio | --no-recursi \
727 | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
730 -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
731 | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
732 | --oldin | --oldi | --old | --ol | --o)
733 ac_prev=oldincludedir ;;
734 -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
735 | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
736 | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
737 oldincludedir=$ac_optarg ;;
739 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
741 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
744 -program-prefix | --program-prefix | --program-prefi | --program-pref \
745 | --program-pre | --program-pr | --program-p)
746 ac_prev=program_prefix ;;
747 -program-prefix=* | --program-prefix=* | --program-prefi=* \
748 | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
749 program_prefix=$ac_optarg ;;
751 -program-suffix | --program-suffix | --program-suffi | --program-suff \
752 | --program-suf | --program-su | --program-s)
753 ac_prev=program_suffix ;;
754 -program-suffix=* | --program-suffix=* | --program-suffi=* \
755 | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
756 program_suffix=$ac_optarg ;;
758 -program-transform-name | --program-transform-name \
759 | --program-transform-nam | --program-transform-na \
760 | --program-transform-n | --program-transform- \
761 | --program-transform | --program-transfor \
762 | --program-transfo | --program-transf \
763 | --program-trans | --program-tran \
764 | --progr-tra | --program-tr | --program-t)
765 ac_prev=program_transform_name ;;
766 -program-transform-name=* | --program-transform-name=* \
767 | --program-transform-nam=* | --program-transform-na=* \
768 | --program-transform-n=* | --program-transform-=* \
769 | --program-transform=* | --program-transfor=* \
770 | --program-transfo=* | --program-transf=* \
771 | --program-trans=* | --program-tran=* \
772 | --progr-tra=* | --program-tr=* | --program-t=*)
773 program_transform_name=$ac_optarg ;;
775 -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
777 -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
780 -psdir | --psdir | --psdi | --psd | --ps)
782 -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
785 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
786 | -silent | --silent | --silen | --sile | --sil)
789 -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
791 -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
793 sbindir=$ac_optarg ;;
795 -sharedstatedir | --sharedstatedir | --sharedstatedi \
796 | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
797 | --sharedst | --shareds | --shared | --share | --shar \
799 ac_prev=sharedstatedir ;;
800 -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
801 | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
802 | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
804 sharedstatedir=$ac_optarg ;;
806 -site | --site | --sit)
808 -site=* | --site=* | --sit=*)
811 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
813 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
816 -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
817 | --syscon | --sysco | --sysc | --sys | --sy)
818 ac_prev=sysconfdir ;;
819 -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
820 | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
821 sysconfdir=$ac_optarg ;;
823 -target | --target | --targe | --targ | --tar | --ta | --t)
824 ac_prev=target_alias ;;
825 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
826 target_alias=$ac_optarg ;;
828 -v | -verbose | --verbose | --verbos | --verbo | --verb)
831 -version | --version | --versio | --versi | --vers | -V)
834 _AC_INIT_PARSE_ENABLE([with])
836 _AC_INIT_PARSE_ENABLE([without])
839 # Obsolete; use --with-x.
842 -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
843 | --x-incl | --x-inc | --x-in | --x-i)
844 ac_prev=x_includes ;;
845 -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
846 | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
847 x_includes=$ac_optarg ;;
849 -x-libraries | --x-libraries | --x-librarie | --x-librari \
850 | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
851 ac_prev=x_libraries ;;
852 -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
853 | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
854 x_libraries=$ac_optarg ;;
856 -*) AC_MSG_ERROR([unrecognized option: $ac_option
857 Try `$[0] --help' for more information.])
861 ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
862 # Reject names that are not valid shell variable names.
863 expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
864 AC_MSG_ERROR([invalid variable name: $ac_envvar])
865 eval $ac_envvar=\$ac_optarg
869 # FIXME: should be removed in autoconf 3.0.
870 AC_MSG_WARN([you should use --build, --host, --target])
871 expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
872 AC_MSG_WARN([invalid host type: $ac_option])
873 : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
879 if test -n "$ac_prev"; then
880 ac_option=--`echo $ac_prev | sed 's/_/-/g'`
881 AC_MSG_ERROR([missing argument to $ac_option])
884 if test -n "$ac_unrecognized_opts"; then
885 case $enable_option_checking in
887 fatal) AC_MSG_ERROR([Unrecognized options: $ac_unrecognized_opts]) ;;
888 *) AC_MSG_WARN( [Unrecognized options: $ac_unrecognized_opts]) ;;
892 # Be sure to have absolute directory names.
893 for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
894 datadir sysconfdir sharedstatedir localstatedir includedir \
895 oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
896 libdir localedir mandir
898 eval ac_val=\$$ac_var
900 [[\\/$]]* | ?:[[\\/]]* ) continue;;
901 NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
903 AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
906 # There might be people who depend on the old broken behavior: `$host'
907 # used to hold the argument of --host etc.
908 # FIXME: To remove some day.
913 # FIXME: To remove some day.
914 if test "x$host_alias" != x; then
915 if test "x$build_alias" = x; then
916 cross_compiling=maybe
917 AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
918 If a cross compiler is detected then cross compile mode will be used.])
919 elif test "x$build_alias" != "x$host_alias"; then
925 test -n "$host_alias" && ac_tool_prefix=$host_alias-
927 test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
929 m4_divert_pop([PARSE_ARGS])dnl
930 ])# _AC_INIT_PARSE_ARGS
933 # _AC_INIT_PARSE_ENABLE(OPTION-NAME)
934 # ----------------------------------
935 # A trivial front-end for _AC_INIT_PARSE_ENABLE2.
937 m4_define([_AC_INIT_PARSE_ENABLE],
938 [m4_bmatch([$1], [^with],
939 [_AC_INIT_PARSE_ENABLE2([$1], [with])],
940 [_AC_INIT_PARSE_ENABLE2([$1], [enable])])])
943 # _AC_INIT_PARSE_ENABLE2(OPTION-NAME, POSITIVE-NAME)
944 # --------------------------------------------------
945 # Handle an `--enable' or a `--with' option.
947 # OPTION-NAME is `enable', `disable', `with', or `without'.
948 # POSITIVE-NAME is the corresponding positive variant, i.e. `enable' or `with'.
950 # Positive variant of the option is recognized by the condition
951 # OPTION-NAME == POSITIVE-NAME .
953 m4_define([_AC_INIT_PARSE_ENABLE2],
955 ac_useropt=`expr "x$ac_option" : 'x-*$1-\(m4_if([$1], [$2], [[[^=]]], [.])*\)'`
956 # Reject names that are not valid shell variable names.
957 expr "x$ac_useropt" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
959 [invalid ]m4_if([$2], [with], [package], [feature])[ name: $ac_useropt])
960 ac_useropt_orig=$ac_useropt
961 ac_useropt=`AS_ECHO(["$ac_useropt"]) | sed 's/[[-.]]/_/g'`
962 case $ac_user_opts in
963 *:$2_$ac_useropt:*) ;;
964 *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--$1-$ac_useropt_orig"
965 ac_unrecognized_sep=', ';;
967 eval $2_$ac_useropt=m4_if([$1], [$2], [\$ac_optarg], [no]) ;;dnl
973 # Handle the `configure --help' message.
974 m4_define([_AC_INIT_HELP],
975 [m4_divert_push([HELP_BEGIN])dnl
978 # Report the --help message.
980 if test "$ac_init_help" = "long"; then
981 # Omit some internal or obsolete options to make the list less imposing.
982 # This message is too long to be a string in the A/UX 3.1 sh.
984 \`configure' configures m4_ifset([AC_PACKAGE_STRING],
986 [this package]) to adapt to many kinds of systems.
988 Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
990 [To assign environment variables (e.g., CC, CFLAGS...), specify them as
991 VAR=VALUE. See below for descriptions of some of the useful variables.
993 Defaults for the options are specified in brackets.
996 -h, --help display this help and exit
997 --help=short display options specific to this package
998 --help=recursive display the short help of all the included packages
999 -V, --version display version information and exit
1000 -q, --quiet, --silent do not print \`checking...' messages
1001 --cache-file=FILE cache test results in FILE [disabled]
1002 -C, --config-cache alias for \`--cache-file=config.cache'
1003 -n, --no-create do not create output files
1004 --srcdir=DIR find the sources in DIR [configure dir or \`..']
1006 Installation directories:
1007 --prefix=PREFIX install architecture-independent files in PREFIX
1008 [$ac_default_prefix]
1009 --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
1012 By default, \`make install' will install all the files in
1013 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
1014 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
1015 for instance \`--prefix=\$HOME'.
1017 For better control, use the options below.
1019 Fine tuning of the installation directories:
1020 --bindir=DIR user executables [EPREFIX/bin]
1021 --sbindir=DIR system admin executables [EPREFIX/sbin]
1022 --libexecdir=DIR program executables [EPREFIX/libexec]
1023 --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
1024 --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
1025 --localstatedir=DIR modifiable single-machine data [PREFIX/var]
1026 --libdir=DIR object code libraries [EPREFIX/lib]
1027 --includedir=DIR C header files [PREFIX/include]
1028 --oldincludedir=DIR C header files for non-gcc [/usr/include]
1029 --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
1030 --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
1031 --infodir=DIR info documentation [DATAROOTDIR/info]
1032 --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
1033 --mandir=DIR man documentation [DATAROOTDIR/man]
1034 --docdir=DIR documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME], [AC_PACKAGE_TARNAME], [PACKAGE])@:>@[
1035 --htmldir=DIR html documentation [DOCDIR]
1036 --dvidir=DIR dvi documentation [DOCDIR]
1037 --pdfdir=DIR pdf documentation [DOCDIR]
1038 --psdir=DIR ps documentation [DOCDIR]
1042 m4_divert_pop([HELP_BEGIN])dnl
1043 dnl The order of the diversions here is
1045 dnl which may be extended by extra generic options such as with X or
1046 dnl AC_ARG_PROGRAM. Displayed only in long --help.
1049 dnl Support for cross compilation (--build, --host and --target).
1050 dnl Display only in long --help.
1053 dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
1054 dnl then implements the header of the non generic options.
1063 dnl initialized below, in which we dump the trailer (handling of the
1064 dnl recursion for instance).
1065 m4_divert_push([HELP_ENABLE])dnl
1069 if test -n "$ac_init_help"; then
1070 m4_ifset([AC_PACKAGE_STRING],
1071 [ case $ac_init_help in
1072 short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
1075 m4_divert_pop([HELP_ENABLE])dnl
1076 m4_divert_push([HELP_END])dnl
1077 m4_ifset([AC_PACKAGE_BUGREPORT], [
1078 Report bugs to <AC_PACKAGE_BUGREPORT>.])
1083 if test "$ac_init_help" = "recursive"; then
1084 # If there are subdirs, report their specific --help.
1085 for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
1086 test -d "$ac_dir" || continue
1087 _AC_SRCDIRS(["$ac_dir"])
1088 cd "$ac_dir" || { ac_status=$?; continue; }
1089 # Check for guested configure.
1090 if test -f "$ac_srcdir/configure.gnu"; then
1092 $SHELL "$ac_srcdir/configure.gnu" --help=recursive
1093 elif test -f "$ac_srcdir/configure"; then
1095 $SHELL "$ac_srcdir/configure" --help=recursive
1097 AC_MSG_WARN([no configuration information is in $ac_dir])
1099 cd "$ac_pwd" || { ac_status=$?; break; }
1103 test -n "$ac_init_help" && exit $ac_status
1104 m4_divert_pop([HELP_END])dnl
1110 # Handle the `configure --version' message.
1111 m4_define([_AC_INIT_VERSION],
1112 [m4_divert_text([VERSION_BEGIN],
1113 [if $ac_init_version; then
1115 m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
1116 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
1117 generated by m4_PACKAGE_STRING])
1118 m4_divert_text([VERSION_END],
1122 ])# _AC_INIT_VERSION
1125 # _AC_INIT_CONFIG_LOG
1126 # -------------------
1127 # Initialize the config.log file descriptor and write header to it.
1128 m4_define([_AC_INIT_CONFIG_LOG],
1129 [m4_divert_text([INIT_PREPARE],
1130 [m4_define([AS_MESSAGE_LOG_FD], 5)dnl
1131 cat >config.log <<_ACEOF
1132 This file contains any messages produced by compilers while
1133 running configure, to aid debugging if configure makes a mistake.
1135 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1136 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1137 generated by m4_PACKAGE_STRING. Invocation command line was
1142 exec AS_MESSAGE_LOG_FD>>config.log
1143 AS_UNAME >&AS_MESSAGE_LOG_FD
1145 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1148 m4_text_box([Core tests.])
1151 ])])# _AC_INIT_CONFIG_LOG
1156 # Called by AC_INIT to build the preamble of the `configure' scripts.
1157 # 1. Trap and clean up various tmp files.
1158 # 2. Set up the fd and output files
1159 # 3. Remember the options given to `configure' for `config.status --recheck'.
1160 # 4. Initiates confdefs.h
1161 # 5. Loads site and cache files
1162 m4_define([_AC_INIT_PREPARE],
1163 [m4_divert_push([INIT_PREPARE])dnl
1165 # Keep a trace of the command line.
1166 # Strip out --no-create and --no-recursion so they do not pile up.
1167 # Strip out --silent because we don't want to record it for future runs.
1168 # Also quote any args containing shell meta-characters.
1169 # Make two passes to allow for proper duplicate-argument suppression.
1173 ac_must_keep_next=false
1179 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1180 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1181 | -silent | --silent | --silen | --sile | --sil)
1184 ac_arg=`AS_ECHO(["$ac_arg"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1187 1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
1189 ac_configure_args1="$ac_configure_args1 '$ac_arg'"
1190 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1191 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1192 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1193 dnl give --prefix foo bar).
1194 if test $ac_must_keep_next = true; then
1195 ac_must_keep_next=false # Got value, back to normal.
1198 dnl Use broad patterns, as arguments that would have already made configure
1199 dnl exit don't matter.
1200 *=* | --config-cache | -C | -disable-* | --disable-* \
1201 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1202 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1203 | -with-* | --with-* | -without-* | --without-* | --x)
1204 case "$ac_configure_args0 " in
1205 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1208 -* ) ac_must_keep_next=true ;;
1211 ac_configure_args="$ac_configure_args '$ac_arg'"
1216 AS_UNSET(ac_configure_args0)
1217 AS_UNSET(ac_configure_args1)
1219 # When interrupted or exit'd, cleanup temporary files, and complete
1220 # config.log. We remove comments because anyway the quotes in there
1221 # would cause problems or look ugly.
1222 # WARNING: Use '\'' to represent an apostrophe within the trap.
1223 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
1224 trap 'exit_status=$?
1225 # Save into config.log some information that might help in debugging.
1229 AS_BOX([Cache variables.])
1231 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1237 AS_BOX([Output variables.])
1239 for ac_var in $ac_subst_vars
1241 eval ac_val=\$$ac_var
1243 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1245 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1249 if test -n "$ac_subst_files"; then
1250 AS_BOX([File substitutions.])
1252 for ac_var in $ac_subst_files
1254 eval ac_val=\$$ac_var
1256 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1258 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1263 if test -s confdefs.h; then
1264 AS_BOX([confdefs.h.])
1269 test "$ac_signal" != 0 &&
1270 AS_ECHO(["$as_me: caught signal $ac_signal"])
1271 AS_ECHO(["$as_me: exit $exit_status"])
1272 } >&AS_MESSAGE_LOG_FD
1273 rm -f core *.core core.conftest.* &&
1274 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1277 for ac_signal in 1 2 13 15; do
1278 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1282 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1283 rm -f -r conftest* confdefs.h
1284 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1285 dnl containing less than 14 bytes (including the newline).
1286 dnl But the defines below solve this problem.
1288 # Predefined preprocessor variables.
1289 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1290 [Define to the full name of this package.])
1291 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1292 [Define to the one symbol short name of this package.])
1293 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1294 [Define to the version of this package.])
1295 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1296 [Define to the full name and version of this package.])
1297 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1298 [Define to the address where bug reports for this package
1301 # Let the site file select an alternate cache file if it wants to.
1304 m4_divert_pop([INIT_PREPARE])dnl
1305 ])# _AC_INIT_PREPARE
1308 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1309 # ----------------------------------------
1310 # This macro is used only for Autoupdate.
1312 [m4_ifval([$2], [[AC_INIT($@)]],
1315 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1319 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT])
1320 # ----------------------------------------
1321 # Include the user macro files, prepare the diversions, and output the
1322 # preamble of the `configure' script.
1323 # Note that the order is important: first initialize, then set the
1325 m4_define([AC_INIT],
1326 [# Forbidden tokens and exceptions.
1327 m4_pattern_forbid([^_?A[CHUM]_])
1328 m4_pattern_forbid([_AC_])
1329 m4_pattern_forbid([^LIBOBJS$],
1330 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1331 # Actually reserved by M4sh.
1332 m4_pattern_allow([^AS_FLAGS$])
1335 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1346 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1348 dnl Substitute for predefined variables.
1350 AC_SUBST([ECHO_C])dnl
1351 AC_SUBST([ECHO_N])dnl
1352 AC_SUBST([ECHO_T])dnl
1354 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1355 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1356 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1364 ## ------------------------------------------------------------- ##
1365 ## Selecting optional features, working with optional software. ##
1366 ## ------------------------------------------------------------- ##
1368 # AC_PRESERVE_HELP_ORDER
1369 # ----------------------
1370 # Emit help strings in the order given, rather than grouping all --enable-FOO
1371 # and all --with-BAR.
1372 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1373 [m4_divert_once([HELP_ENABLE], [[
1374 Optional Features and Packages:
1375 --disable-option-checking ignore unrecognized --enable/--with options
1376 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1377 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1378 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1379 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1380 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1381 ])# AC_PRESERVE_HELP_ORDER
1383 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1384 # -------------------------------------------------------------------
1385 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1386 # OPTION is either "enable" or "with".
1388 m4_define([_AC_ENABLE_IF],
1389 [# Check whether --$1-$2 was given.
1390 _AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-.], [__]), [$3], [$4])[]dnl
1393 m4_define([_AC_ENABLE_IF_ACTION],
1394 [m4_append_uniq([_AC_USER_OPTS], [$1_$2], [:])dnl
1395 AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
1398 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1399 # ------------------------------------------------------------------------
1400 AC_DEFUN([AC_ARG_ENABLE],
1401 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1403 [m4_divert_once([HELP_ENABLE], [[
1405 --disable-option-checking ignore unrecognized --enable/--with options
1406 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1407 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1408 m4_divert_once([HELP_ENABLE], [$2])dnl
1409 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1413 AU_DEFUN([AC_ENABLE],
1414 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1417 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1418 # --------------------------------------------------------------------
1419 AC_DEFUN([AC_ARG_WITH],
1420 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1422 [m4_divert_once([HELP_WITH], [[
1424 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1425 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1426 m4_divert_once([HELP_WITH], [$2])dnl
1427 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1431 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1433 # AC_DISABLE_OPTION_CHECKING
1434 # --------------------------------------------------------------------
1435 AC_DEFUN([AC_DISABLE_OPTION_CHECKING],
1436 [m4_divert_once([DEFAULTS], [enable_option_checking=no])
1437 ])# AC_DISABLE_OPTION_CHECKING
1440 ## ----------------------------------------- ##
1441 ## Remembering variables for reconfiguring. ##
1442 ## ----------------------------------------- ##
1445 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1446 # ----------------------------------
1447 # Register VARNAME as a precious variable, and document it in
1448 # `configure --help' (but only once).
1449 AC_DEFUN([AC_ARG_VAR],
1450 [m4_divert_once([HELP_VAR], [[
1451 Some influential environment variables:]])dnl
1452 m4_divert_once([HELP_VAR_END], [[
1453 Use these variables to override the choices made by `configure' or to help
1454 it to find libraries and programs with nonstandard names/locations.]])dnl
1455 m4_expand_once([m4_divert_text([HELP_VAR],
1456 [AS_HELP_STRING([$1], [$2], [ ])])],
1459 _AC_ARG_VAR_PRECIOUS([$1])dnl
1463 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1464 # -----------------------------
1465 # Declare VARNAME is precious.
1466 m4_define([_AC_ARG_VAR_PRECIOUS],
1467 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1474 # We try to diagnose when precious variables have changed. To do this,
1475 # make two early snapshots (after the option processing to take
1476 # explicit variables into account) of those variables: one (ac_env_)
1477 # which represents the current run, and a second (ac_cv_env_) which,
1478 # at the first run, will be saved in the cache. As an exception to
1479 # the cache mechanism, its loading will override these variables (non
1480 # `ac_cv_env_' cache value are only set when unset).
1482 # In subsequent runs, after having loaded the cache, compare
1483 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1484 m4_define([_AC_ARG_VAR_STORE],
1485 [m4_divert_text([PARSE_ARGS],
1486 [for ac_var in $ac_precious_vars; do
1487 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1488 eval ac_env_${ac_var}_value=\$${ac_var}
1489 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1490 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1495 # _AC_ARG_VAR_VALIDATE
1496 # --------------------
1497 # The precious variables are saved twice at the beginning of
1498 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1499 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1500 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1502 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1503 # content of the cached values, while `ac_env_' represents that of the
1506 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1508 m4_define([_AC_ARG_VAR_VALIDATE],
1509 [m4_divert_text([INIT_PREPARE],
1510 [# Check that the precious variables saved in the cache have kept the same
1512 ac_cache_corrupted=false
1513 for ac_var in $ac_precious_vars; do
1514 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1515 eval ac_new_set=\$ac_env_${ac_var}_set
1516 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1517 eval ac_new_val=\$ac_env_${ac_var}_value
1518 case $ac_old_set,$ac_new_set in
1520 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1521 ac_cache_corrupted=: ;;
1523 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1524 ac_cache_corrupted=: ;;
1527 if test "x$ac_old_val" != "x$ac_new_val"; then
1528 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1529 AS_MESSAGE([ former value: $ac_old_val], 2)
1530 AS_MESSAGE([ current value: $ac_new_val], 2)
1531 ac_cache_corrupted=:
1534 # Pass precious variables to config.status.
1535 if test "$ac_new_set" = set; then
1537 *\'*) ac_arg=$ac_var=`AS_ECHO(["$ac_new_val"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1538 *) ac_arg=$ac_var=$ac_new_val ;;
1540 case " $ac_configure_args " in
1541 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1542 *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
1546 if $ac_cache_corrupted; then
1547 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1548 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1550 ])# _AC_ARG_VAR_VALIDATE
1556 ## ---------------------------- ##
1557 ## Transforming program names. ##
1558 ## ---------------------------- ##
1563 # This macro is expanded only once, to avoid that `foo' ends up being
1564 # installed as `ggfoo'.
1565 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1566 [dnl Document the options.
1567 m4_divert_push([HELP_BEGIN])dnl
1570 --program-prefix=PREFIX prepend PREFIX to installed program names
1571 --program-suffix=SUFFIX append SUFFIX to installed program names
1572 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1573 m4_divert_pop([HELP_BEGIN])dnl
1574 test "$program_prefix" != NONE &&
1575 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1576 # Use a double $ so make ignores it.
1577 test "$program_suffix" != NONE &&
1578 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1579 # Double any \ or $.
1580 # By default was `s,x,x', remove it if useless.
1581 [ac_script='s/[\\$]/&&/g;s/;s,x,x,$//']
1582 program_transform_name=`AS_ECHO(["$program_transform_name"]) | sed "$ac_script"`
1589 ## ------------------------- ##
1590 ## Finding auxiliary files. ##
1591 ## ------------------------- ##
1594 # AC_CONFIG_AUX_DIR(DIR)
1595 # ----------------------
1596 # Find install-sh, config.sub, config.guess, and Cygnus configure
1597 # in directory DIR. These are auxiliary files used in configuration.
1598 # DIR can be either absolute or relative to $srcdir.
1599 AC_DEFUN([AC_CONFIG_AUX_DIR],
1600 [AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
1603 # AC_CONFIG_AUX_DIR_DEFAULT
1604 # -------------------------
1605 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1606 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1607 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1608 [AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
1611 # AC_CONFIG_AUX_DIRS(DIR ...)
1612 # ---------------------------
1613 # Internal subroutine.
1614 # Search for the configuration auxiliary files in directory list $1.
1615 # We look only for install-sh, so users of AC_PROG_INSTALL
1616 # do not automatically need to distribute the other auxiliary files.
1617 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1619 for ac_dir in $1; do
1620 if test -f "$ac_dir/install-sh"; then
1622 ac_install_sh="$ac_aux_dir/install-sh -c"
1624 elif test -f "$ac_dir/install.sh"; then
1626 ac_install_sh="$ac_aux_dir/install.sh -c"
1628 elif test -f "$ac_dir/shtool"; then
1630 ac_install_sh="$ac_aux_dir/shtool install -c"
1634 if test -z "$ac_aux_dir"; then
1635 AC_MSG_ERROR([cannot find install-sh or install.sh in $1])
1638 # These three variables are undocumented and unsupported,
1639 # and are intended to be withdrawn in a future Autoconf release.
1640 # They can cause serious problems if a builder's source tree is in a directory
1641 # whose full name contains unusual characters.
1642 ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
1643 ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
1644 ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
1646 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1647 ])# AC_CONFIG_AUX_DIRS
1652 ## ------------------------ ##
1653 ## Finding aclocal macros. ##
1654 ## ------------------------ ##
1657 # AC_CONFIG_MACRO_DIR(DIR)
1658 # ------------------------
1659 # Declare directory containing additional macros for aclocal.
1660 AC_DEFUN([AC_CONFIG_MACRO_DIR], [])
1664 ## --------------------- ##
1665 ## Requiring aux files. ##
1666 ## --------------------- ##
1668 # AC_REQUIRE_AUX_FILE(FILE)
1669 # -------------------------
1670 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1671 # It announces FILE is required in the auxdir.
1672 m4_define([AC_REQUIRE_AUX_FILE],
1673 [AS_LITERAL_IF([$1], [],
1674 [AC_FATAL([$0: requires a literal argument])])])
1678 ## ----------------------------------- ##
1679 ## Getting the canonical system type. ##
1680 ## ----------------------------------- ##
1683 # configure --host=HOST --target=TARGET --build=BUILD
1686 # 1. Build defaults to the current platform, as determined by config.guess.
1687 # 2. Host defaults to build.
1688 # 3. Target defaults to host.
1691 # _AC_CANONICAL_SPLIT(THING)
1692 # --------------------------
1693 # Generate the variables THING, THING_{alias cpu vendor os}.
1694 m4_define([_AC_CANONICAL_SPLIT],
1697 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1699 AC_SUBST([$1], [$ac_cv_$1])dnl
1700 ac_save_IFS=$IFS; IFS='-'
1703 AC_SUBST([$1_cpu], [$[1]])dnl
1704 AC_SUBST([$1_vendor], [$[2]])dnl
1706 [# Remember, the first character of IFS is used to create $]*,
1707 # except with old shells:
1710 case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
1711 AC_SUBST([$1_os])dnl
1712 ])# _AC_CANONICAL_SPLIT
1715 # AC_CANONICAL_BUILD
1716 # ------------------
1717 AC_DEFUN([AC_CANONICAL_BUILD],
1718 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1719 AC_REQUIRE_AUX_FILE([config.sub])dnl
1720 AC_REQUIRE_AUX_FILE([config.guess])dnl
1721 m4_divert_once([HELP_CANON],
1724 --build=BUILD configure for building on BUILD [guessed]]])dnl
1725 # Make sure we can run config.sub.
1726 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
1727 AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
1729 AC_CACHE_CHECK([build system type], [ac_cv_build],
1730 [ac_build_alias=$build_alias
1731 test "x$ac_build_alias" = x &&
1732 ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
1733 test "x$ac_build_alias" = x &&
1734 AC_MSG_ERROR([cannot guess build type; you must specify one])
1735 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
1736 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
1738 _AC_CANONICAL_SPLIT(build)
1739 ])# AC_CANONICAL_BUILD
1744 AC_DEFUN([AC_CANONICAL_HOST],
1745 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1746 m4_divert_once([HELP_CANON],
1747 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1748 AC_CACHE_CHECK([host system type], [ac_cv_host],
1749 [if test "x$host_alias" = x; then
1750 ac_cv_host=$ac_cv_build
1752 ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
1753 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
1756 _AC_CANONICAL_SPLIT([host])
1757 ])# AC_CANONICAL_HOST
1760 # AC_CANONICAL_TARGET
1761 # -------------------
1762 AC_DEFUN([AC_CANONICAL_TARGET],
1763 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1764 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1765 m4_divert_once([HELP_CANON],
1766 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1767 AC_CACHE_CHECK([target system type], [ac_cv_target],
1768 [if test "x$target_alias" = x; then
1769 ac_cv_target=$ac_cv_host
1771 ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
1772 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
1775 _AC_CANONICAL_SPLIT([target])
1777 # The aliases save the names the user supplied, while $host etc.
1778 # will get canonicalized.
1779 test -n "$target_alias" &&
1780 test "$program_prefix$program_suffix$program_transform_name" = \
1782 program_prefix=${target_alias}-[]dnl
1783 ])# AC_CANONICAL_TARGET
1786 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1789 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1790 # ------------------------------------------
1791 # If the cache file is inconsistent with the current host,
1792 # target and build system types, execute CMD or print a default
1793 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1794 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1797 ## ---------------------- ##
1798 ## Caching test results. ##
1799 ## ---------------------- ##
1804 # Look for site or system specific initialization scripts.
1805 m4_define([AC_SITE_LOAD],
1806 [# Prefer explicitly selected file to automatically selected ones.
1807 if test -n "$CONFIG_SITE"; then
1808 set x "$CONFIG_SITE"
1809 elif test "x$prefix" != xNONE; then
1810 set x "$prefix/share/config.site" "$prefix/etc/config.site"
1812 set x "$ac_default_prefix/share/config.site" \
1813 "$ac_default_prefix/etc/config.site"
1818 if test -r "$ac_site_file"; then
1819 AC_MSG_NOTICE([loading site script $ac_site_file])
1820 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1829 m4_define([AC_CACHE_LOAD],
1830 [if test -r "$cache_file"; then
1831 # Some versions of bash will fail to source /dev/null (special
1832 # files actually), so we avoid doing that.
1833 if test -f "$cache_file"; then
1834 AC_MSG_NOTICE([loading cache $cache_file])
1836 [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
1837 *) . "./$cache_file";;
1841 AC_MSG_NOTICE([creating cache $cache_file])
1849 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1850 m4_define([_AC_CACHE_DUMP],
1851 [# The following way of writing the cache mishandles newlines in values,
1852 # but we know of no workaround that is simple, portable, and efficient.
1853 # So, we kill variables containing newlines.
1854 # Ultrix sh set writes to stderr and can't be redirected directly,
1855 # and sets the high bit in the cache file unless we assign to the vars.
1857 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1858 eval ac_val=\$$ac_var
1862 *_cv_*) AC_MSG_WARN([Cache variable $ac_var contains a newline.]) ;;
1865 _ | IFS | as_nl) ;; #(
1866 BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
1867 *) $as_unset $ac_var ;;
1873 case $as_nl`(ac_space=' '; set) 2>&1` in #(
1874 *${as_nl}ac_space=\ *)
1875 # `set' does not quote correctly, so add quotes (double-quote
1876 # substitution turns \\\\ into \\, and sed turns \\ into \).
1879 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
1882 # `set' quotes correctly as required by POSIX, so do not add quotes.
1883 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
1894 # Allow a site initialization script to override cache values.
1895 m4_define([AC_CACHE_SAVE],
1896 [cat >confcache <<\_ACEOF
1897 # This file is a shell script that caches the results of configure
1898 # tests run on this system so they can be shared between configure
1899 # scripts and configure runs, see configure's option --config-cache.
1900 # It is not useful on other systems. If it contains results you don't
1901 # want to keep, you may remove or edit it.
1903 # config.status only pays attention to the cache file if you give it
1904 # the --recheck option to rerun configure.
1906 # `ac_cv_env_foo' variables (set or unset) will be overridden when
1907 # loading this file, other *unset* `ac_cv_foo' will be assigned the
1917 s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
1919 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
1921 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
1922 if test -w "$cache_file"; then
1923 test "x$cache_file" != "x/dev/null" &&
1924 AC_MSG_NOTICE([updating cache $cache_file])
1925 cat confcache >$cache_file
1927 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
1930 rm -f confcache[]dnl
1934 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
1935 # ------------------------------------------
1936 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
1937 # Should be dnl'ed. Try to catch common mistakes.
1938 m4_defun([AC_CACHE_VAL],
1939 [m4_bmatch([$2], [AC_DEFINE],
1940 [AC_DIAGNOSE([syntax],
1941 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
1942 [where no actions should be taken])])dnl
1944 [_AS_ECHO_N([(cached) ])],
1948 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
1949 # -------------------------------------------
1950 # Do not call this macro with a dnl right behind.
1951 m4_defun([AC_CACHE_CHECK],
1952 [AC_MSG_CHECKING([$1])
1953 AC_CACHE_VAL([$2], [$3])dnl
1955 [AC_MSG_RESULT([$$2])],
1956 [ac_res=AS_VAR_GET([$2])
1957 AC_MSG_RESULT([$ac_res])])dnl
1960 # _AC_CACHE_CHECK_INT(MESSAGE, CACHE-ID, EXPRESSION,
1961 # [PROLOGUE = DEFAULT-INCLUDES], [IF-FAILS])
1962 # -------------------------------------------------------------
1963 AC_DEFUN([_AC_CACHE_CHECK_INT],
1964 [AC_CACHE_CHECK([$1], [$2],
1965 [AC_COMPUTE_INT([$2], [$3], [$4], [$5])])
1966 ])# _AC_CACHE_CHECK_INT
1970 ## ---------------------- ##
1971 ## Defining CPP symbols. ##
1972 ## ---------------------- ##
1975 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
1976 # -------------------------------------------
1977 # Used by --trace to collect the list of AC_DEFINEd macros.
1978 m4_define([AC_DEFINE_TRACE_LITERAL],
1979 [m4_pattern_allow([^$1$])dnl
1980 m4_bmatch([$1], ^m4_defn([m4_re_word])$, [],
1981 [m4_warn([syntax], [AC_DEFINE: not an identifier: $1])])dnl
1982 ])# AC_DEFINE_TRACE_LITERAL
1985 # AC_DEFINE_TRACE(CPP-SYMBOL)
1986 # ---------------------------
1987 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
1988 # out non literal symbols.
1989 m4_define([AC_DEFINE_TRACE],
1990 [AS_LITERAL_IF([$1], [AC_DEFINE_TRACE_LITERAL(m4_bpatsubst([[$1]], [(.*)]))])])
1993 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
1994 # -------------------------------------------
1995 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
1996 # and if VARIABLE is affected the same VALUE, do nothing, else
1997 # die. The third argument is used by autoheader.
1998 m4_define([AC_DEFINE], [_AC_DEFINE_Q([\], $@)])
2001 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
2002 # ----------------------------------------------------
2003 # Similar, but perform shell substitutions $ ` \ once on VALUE.
2004 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([], $@)])
2007 # _AC_DEFINE_Q(QUOTE, VARIABLE, [VALUE], [DESCRIPTION])
2008 # -----------------------------------------------------
2009 m4_define([_AC_DEFINE_Q],
2010 [AC_DEFINE_TRACE([$2])dnl
2011 m4_ifval([$4], [AH_TEMPLATE(m4_bpatsubst([[$2]], [(.*)]), [$4])])dnl
2012 cat >>confdefs.h <<$1_ACEOF
2013 [@%:@define] $2 m4_if($#, 2, 1, [$3])
2019 ## -------------------------- ##
2020 ## Setting output variables. ##
2021 ## -------------------------- ##
2024 # AC_SUBST_TRACE(VARIABLE)
2025 # ------------------------
2026 # This macro is used with --trace to collect the list of substituted variables.
2027 m4_define([AC_SUBST_TRACE])
2030 # AC_SUBST(VARIABLE, [VALUE])
2031 # ---------------------------
2032 # Create an output variable from a shell VARIABLE. If VALUE is given
2033 # assign it to VARIABLE. Use `""' is you want to set VARIABLE to an
2034 # empty value, not an empty second argument.
2036 m4_define([AC_SUBST],
2037 [AC_SUBST_TRACE([$1])dnl
2038 m4_pattern_allow([^$1$])dnl
2039 m4_ifvaln([$2], [$1=$2])[]dnl
2040 m4_append_uniq([_AC_SUBST_VARS], [$1], [
2045 # AC_SUBST_FILE(VARIABLE)
2046 # -----------------------
2047 # Read the comments of the preceding macro.
2048 m4_define([AC_SUBST_FILE],
2049 [m4_pattern_allow([^$1$])dnl
2050 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2055 ## --------------------------------------- ##
2056 ## Printing messages at autoconf runtime. ##
2057 ## --------------------------------------- ##
2059 # In fact, I think we should promote the use of m4_warn and m4_fatal
2060 # directly. This will also avoid to some people to get it wrong
2061 # between AC_FATAL and AC_MSG_ERROR.
2064 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2065 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2066 # --------------------------------
2067 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2068 m4_define([AC_FATAL], [m4_fatal($@)])
2071 # AC_WARNING(MESSAGE)
2072 # -------------------
2073 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2075 m4_define([AC_WARNING],
2076 [AC_DIAGNOSE([syntax], [$1])])
2081 ## ---------------------------------------- ##
2082 ## Printing messages at configure runtime. ##
2083 ## ---------------------------------------- ##
2086 # AC_MSG_CHECKING(FEATURE)
2087 # ------------------------
2088 m4_define([AC_MSG_CHECKING],
2089 [{ _AS_ECHO_LOG([checking $1])
2090 _AS_ECHO_N([checking $1... ]); }dnl
2094 # AC_MSG_RESULT(RESULT)
2095 # ---------------------
2096 m4_define([AC_MSG_RESULT],
2097 [{ _AS_ECHO_LOG([result: $1])
2098 _AS_ECHO([$1]); }dnl
2102 # AC_MSG_WARN(PROBLEM)
2103 # AC_MSG_NOTICE(STRING)
2104 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2105 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2106 # ----------------------------------------
2107 m4_copy([AS_WARN], [AC_MSG_WARN])
2108 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2109 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2110 m4_define([AC_MSG_FAILURE],
2112 See `config.log' for more details.], [$2])])
2115 # _AC_MSG_LOG_CONFTEST
2116 # --------------------
2117 m4_define([_AC_MSG_LOG_CONFTEST],
2118 [AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD
2119 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2123 # AU::AC_CHECKING(FEATURE)
2124 # ------------------------
2125 AU_DEFUN([AC_CHECKING],
2126 [AS_MESSAGE([checking $1...])])
2129 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2130 # ----------------------------------
2131 # No escaping, so it performed also backtick substitution.
2132 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2133 [_AS_ECHO_UNQUOTED([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
2134 _AS_ECHO_UNQUOTED([$1])[]dnl
2138 # AU::AC_VERBOSE(STRING)
2139 # ----------------------
2140 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2147 ## ---------------------------- ##
2148 ## Compiler-running mechanics. ##
2149 ## ---------------------------- ##
2152 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2153 # ----------------------------------
2154 # Eval COMMAND, save the exit status in ac_status, and log it.
2155 AC_DEFUN([_AC_RUN_LOG],
2156 [{ ($2) >&AS_MESSAGE_LOG_FD
2157 ($1) 2>&AS_MESSAGE_LOG_FD
2159 _AS_ECHO_LOG([\$? = $ac_status])
2160 (exit $ac_status); }])
2163 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2164 # -----------------------------------------
2165 # Run COMMAND, save its stderr into conftest.err, save the exit status
2166 # in ac_status, and log it. Don't forget to clean up conftest.err after
2168 # Note that when tracing, most shells will leave the traces in stderr
2169 # starting with "+": that's what this macro tries to address.
2170 AC_DEFUN([_AC_RUN_LOG_STDERR],
2171 [{ ($2) >&AS_MESSAGE_LOG_FD
2174 grep -v '^ *+' conftest.er1 >conftest.err
2176 cat conftest.err >&AS_MESSAGE_LOG_FD
2177 _AS_ECHO_LOG([\$? = $ac_status])
2178 (exit $ac_status); }])
2180 # _AC_DO_ECHO(COMMAND)
2181 # --------------------
2182 # Echo COMMAND. This is designed to be used just before evaluating COMMAND.
2183 AC_DEFUN([_AC_DO_ECHO],
2184 [m4_if([$1], [$ac_try], [], [ac_try="$1"
2186 dnl If the string contains '"', '`', or '\', then just echo it rather
2187 dnl than expanding it. This is a hack, but it is safer, while also
2188 dnl typically expanding simple substrings like '$CC', which is what we want.
2190 dnl Much of this macro body is quoted, to work around misuses like
2191 dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
2192 dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
2193 dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
2194 dnl underquoting misuses, such as
2195 dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
2196 dnl We normally wouldn't bother with this kind of workaround for invalid code
2197 dnl but this change was put in just before Autoconf 2.60 and we wanted to
2198 dnl minimize the integration hassle.
2199 [case "(($ac_try" in
2200 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
2201 *) ac_try_echo=$ac_try;;
2203 eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""]
2204 AS_ECHO(["$ac_try_echo"])])
2208 # Eval COMMAND, save the exit status in ac_status, and log it.
2209 # For internal use only.
2211 [_AC_RUN_LOG([eval "$1"],
2212 [_AC_DO_ECHO([$1])])])
2215 # _AC_DO_STDERR(COMMAND)
2216 # ----------------------
2217 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2218 AC_DEFUN([_AC_DO_STDERR],
2219 [_AC_RUN_LOG_STDERR([eval "$1"],
2220 [_AC_DO_ECHO([$1])])])
2223 # _AC_DO_VAR(VARIABLE)
2224 # --------------------
2225 # Evaluate "$VARIABLE", which should be a valid shell command.
2226 # The purpose of this macro is to write "configure:123: command line"
2227 # into config.log for every test run.
2228 AC_DEFUN([_AC_DO_VAR],
2232 # _AC_DO_TOKENS(COMMAND)
2233 # ----------------------
2234 # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
2235 # tokens of the shell command language.
2236 AC_DEFUN([_AC_DO_TOKENS],
2238 _AC_DO([$ac_try]); }])
2243 # Eval COMMAND, save the exit status in ac_status, and log it.
2244 # Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
2245 # It is present only for backward compatibility with previous Autoconf versions.
2246 AC_DEFUN([_AC_EVAL],
2247 [_AC_RUN_LOG([eval $1],
2248 [eval echo "$as_me:$LINENO: \"$1\""])])
2251 # _AC_EVAL_STDERR(COMMAND)
2252 # ------------------------
2253 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2254 # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
2255 # It is present only for backward compatibility with previous Autoconf versions.
2256 AC_DEFUN([_AC_EVAL_STDERR],
2257 [_AC_RUN_LOG_STDERR([eval $1],
2258 [eval echo "$as_me:$LINENO: \"$1\""])])
2261 # AC_TRY_EVAL(VARIABLE)
2262 # ---------------------
2263 # Evaluate $VARIABLE, which should be a valid shell command.
2264 # The purpose of this macro is to write "configure:123: command line"
2265 # into config.log for every test run.
2267 # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
2268 # undocumented, and should not be used.
2269 # They may be removed or their API changed in a future release.
2270 # Autoconf itself no longer uses these two macros; they are present
2271 # only for backward compatibility with previous versions of Autoconf.
2272 # Not every shell command will work due to problems with eval
2273 # and quoting, and the rules for exactly what does work are tricky.
2274 # Worse, due to double-expansion during evaluation, arbitrary unintended
2275 # shell commands could be executed in some situations.
2276 AC_DEFUN([AC_TRY_EVAL],
2280 # AC_TRY_COMMAND(COMMAND)
2281 # -----------------------
2282 # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
2283 # tokens of the shell command language.
2284 # This macro should not be used; see the comments under AC_TRY_EVAL for why.
2285 AC_DEFUN([AC_TRY_COMMAND],
2287 _AC_EVAL([$ac_try]); }])
2290 # AC_RUN_LOG(COMMAND)
2291 # -------------------
2292 AC_DEFUN([AC_RUN_LOG],
2294 [AS_ECHO(["$as_me:$LINENO: AS_ESCAPE([$1])"])])])
2299 ## ------------------------ ##
2300 ## Examining declarations. ##
2301 ## ------------------------ ##
2305 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2306 # ----------------------------------------------------------------
2307 # Try to preprocess PROGRAM.
2309 # This macro can be used during the selection of a preprocessor.
2310 # eval is necessary to expand ac_cpp.
2311 AC_DEFUN([_AC_PREPROC_IFELSE],
2312 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2313 AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null && {
2314 test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2315 test ! -s conftest.err
2318 [_AC_MSG_LOG_CONFTEST
2320 rm -f conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl
2321 ])# _AC_PREPROC_IFELSE
2324 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2325 # ---------------------------------------------------------------
2326 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2327 # current language was checked for, hence do not use this macro in macros
2328 # looking for a preprocessor.
2329 AC_DEFUN([AC_PREPROC_IFELSE],
2330 [AC_LANG_PREPROC_REQUIRE()dnl
2331 _AC_PREPROC_IFELSE($@)])
2334 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2335 # ---------------------------------------------------------
2336 # AC_TRY_CPP is used to check whether particular header files exist.
2337 # (But it actually tests whether INCLUDES produces no CPP errors.)
2339 # INCLUDES are not defaulted and are double quoted.
2340 AU_DEFUN([AC_TRY_CPP],
2341 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2344 # AC_EGREP_CPP(PATTERN, PROGRAM,
2345 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2346 # ------------------------------------------------------
2347 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2348 # come early, it is not included in AC_BEFORE checks.
2349 AC_DEFUN([AC_EGREP_CPP],
2350 [AC_LANG_PREPROC_REQUIRE()dnl
2351 AC_REQUIRE([AC_PROG_EGREP])dnl
2352 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2353 AS_IF([dnl eval is necessary to expand ac_cpp.
2354 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2355 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2356 dnl Quote $1 to prevent m4 from eating character classes
2357 $EGREP "[$1]" >/dev/null 2>&1],
2364 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2365 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2366 # ---------------------------------------------------------
2367 AC_DEFUN([AC_EGREP_HEADER],
2375 ## ------------------ ##
2376 ## Examining syntax. ##
2377 ## ------------------ ##
2380 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2381 # ----------------------------------------------------------------
2382 # Try to compile PROGRAM.
2383 # This macro can be used during the selection of a compiler.
2384 m4_define([_AC_COMPILE_IFELSE],
2385 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2386 rm -f conftest.$ac_objext
2387 AS_IF([_AC_DO_STDERR($ac_compile) && {
2388 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2389 test ! -s conftest.err
2390 } && test -s conftest.$ac_objext],
2392 [_AC_MSG_LOG_CONFTEST
2394 rm -f core conftest.err conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2395 ])# _AC_COMPILE_IFELSE
2398 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2399 # ---------------------------------------------------------------
2400 # Try to compile PROGRAM. Requires that the compiler for the current
2401 # language was checked for, hence do not use this macro in macros looking
2403 AC_DEFUN([AC_COMPILE_IFELSE],
2404 [AC_LANG_COMPILER_REQUIRE()dnl
2405 _AC_COMPILE_IFELSE($@)])
2408 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2409 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2410 # ---------------------------------------------------
2411 AU_DEFUN([AC_TRY_COMPILE],
2412 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2416 ## --------------------- ##
2417 ## Examining libraries. ##
2418 ## --------------------- ##
2421 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2422 # -------------------------------------------------------------
2423 # Try to link PROGRAM.
2424 # This macro can be used during the selection of a compiler.
2425 m4_define([_AC_LINK_IFELSE],
2426 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2427 rm -f conftest.$ac_objext conftest$ac_exeext
2428 AS_IF([_AC_DO_STDERR($ac_link) && {
2429 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2430 test ! -s conftest.err
2431 } && test -s conftest$ac_exeext &&
2432 AS_TEST_X([conftest$ac_exeext])],
2434 [_AC_MSG_LOG_CONFTEST
2436 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
2437 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
2438 dnl as it would interfere with the next link command.
2439 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
2440 conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2444 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2445 # ------------------------------------------------------------
2446 # Try to link PROGRAM. Requires that the compiler for the current
2447 # language was checked for, hence do not use this macro in macros looking
2449 AC_DEFUN([AC_LINK_IFELSE],
2450 [AC_LANG_COMPILER_REQUIRE()dnl
2451 _AC_LINK_IFELSE($@)])
2454 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2455 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2456 # ------------------------------------------------
2457 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2458 AU_DEFUN([AC_TRY_LINK],
2459 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2462 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2463 # ACTION-IF-TRUE, [ACTION-IF-FALSE])
2464 # ---------------------------------------------------
2465 AU_DEFUN([AC_COMPILE_CHECK],
2466 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2467 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2472 ## ------------------------------- ##
2473 ## Checking for runtime features. ##
2474 ## ------------------------------- ##
2477 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2478 # ------------------------------------------------------------
2479 # Compile, link, and run.
2480 # This macro can be used during the selection of a compiler.
2481 # We also remove conftest.o as if the compilation fails, some compilers
2482 # don't remove it. We remove gmon.out and bb.out, which may be
2483 # created during the run if the program is built with profiling support.
2484 m4_define([_AC_RUN_IFELSE],
2485 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2486 rm -f conftest$ac_exeext
2487 AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
2489 [AS_ECHO(["$as_me: program exited with status $ac_status"]) >&AS_MESSAGE_LOG_FD
2490 _AC_MSG_LOG_CONFTEST
2492 [( exit $ac_status )
2494 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext m4_ifval([$1],
2495 [conftest.$ac_ext])[]dnl
2499 # AC_RUN_IFELSE(PROGRAM,
2500 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2501 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2502 # ----------------------------------------------------------
2503 # Compile, link, and run. Requires that the compiler for the current
2504 # language was checked for, hence do not use this macro in macros looking
2506 AC_DEFUN([AC_RUN_IFELSE],
2507 [AC_LANG_COMPILER_REQUIRE()dnl
2509 [AC_DIAGNOSE([cross],
2510 [$0 called without default to allow cross compiling])])dnl
2511 AS_IF([test "$cross_compiling" = yes],
2513 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2514 [_AC_RUN_IFELSE($@)])
2518 # AC_TRY_RUN(PROGRAM,
2519 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2520 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2521 # --------------------------------------------------------
2522 AU_DEFUN([AC_TRY_RUN],
2523 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2527 ## ------------------------------------- ##
2528 ## Checking for the existence of files. ##
2529 ## ------------------------------------- ##
2531 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2532 # -------------------------------------------------------------
2534 # Check for the existence of FILE.
2535 AC_DEFUN([AC_CHECK_FILE],
2536 [AC_DIAGNOSE([cross],
2537 [cannot check for file existence when cross compiling])dnl
2538 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2539 AC_CACHE_CHECK([for $1], [ac_File],
2540 [test "$cross_compiling" = yes &&
2541 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2542 if test -r "$1"; then
2543 AS_VAR_SET([ac_File], [yes])
2545 AS_VAR_SET([ac_File], [no])
2547 AS_IF([test AS_VAR_GET([ac_File]) = yes], [$2], [$3])[]dnl
2548 AS_VAR_POPDEF([ac_File])dnl
2552 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2553 # -----------------------------------------------------------------
2554 AC_DEFUN([AC_CHECK_FILES],
2555 [m4_foreach_w([AC_FILE_NAME], [$1],
2556 [AC_CHECK_FILE(AC_FILE_NAME,
2557 [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]AC_FILE_NAME), 1,
2558 [Define to 1 if you have the
2564 ## ------------------------------- ##
2565 ## Checking for declared symbols. ##
2566 ## ------------------------------- ##
2569 # AC_CHECK_DECL(SYMBOL,
2570 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2571 # [INCLUDES = DEFAULT-INCLUDES])
2572 # -------------------------------------------------------
2573 # Check whether SYMBOL (a function, variable, or constant) is declared.
2574 AC_DEFUN([AC_CHECK_DECL],
2575 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])dnl
2576 AC_CACHE_CHECK([whether $1 is declared], [ac_Symbol],
2577 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
2582 [AS_VAR_SET([ac_Symbol], [yes])],
2583 [AS_VAR_SET([ac_Symbol], [no])])])
2584 AS_IF([test AS_VAR_GET([ac_Symbol]) = yes], [$2], [$3])[]dnl
2585 AS_VAR_POPDEF([ac_Symbol])dnl
2589 # AC_CHECK_DECLS(SYMBOLS,
2590 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2591 # [INCLUDES = DEFAULT-INCLUDES])
2592 # --------------------------------------------------------
2593 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2594 # documentation for a detailed explanation of this difference with
2595 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2596 AC_DEFUN([AC_CHECK_DECLS],
2597 [m4_foreach([AC_Symbol], [$1],
2598 [AC_CHECK_DECL(AC_Symbol,
2599 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 1,
2600 [Define to 1 if you have the declaration
2601 of `]AC_Symbol[', and to 0 if you don't.])
2603 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 0)
2609 # AC_CHECK_DECLS_ONCE(SYMBOLS)
2610 # ----------------------------
2611 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
2612 AC_DEFUN([AC_CHECK_DECLS_ONCE],
2614 m4_foreach([AC_Symbol], [$1],
2615 [AC_DEFUN([_AC_Check_Decl_]m4_defn([AC_Symbol]),
2616 [AC_CHECK_DECLS(m4_defn([AC_Symbol]))])
2617 AC_REQUIRE([_AC_Check_Decl_]m4_defn([AC_Symbol]))])
2622 ## ---------------------------------- ##
2623 ## Replacement of library functions. ##
2624 ## ---------------------------------- ##
2627 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
2628 # -----------------------------
2629 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
2630 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
2631 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
2634 # AC_LIBSOURCE(FILE-NAME)
2635 # -----------------------
2636 # Announce we might need the file `FILE-NAME'.
2637 m4_define([AC_LIBSOURCE], [])
2640 # AC_LIBSOURCES([FILE-NAME1, ...])
2641 # -------------------------------
2642 # Announce we might need these files.
2643 m4_define([AC_LIBSOURCES],
2644 [m4_foreach([_AC_FILE_NAME], [$1],
2645 [AC_LIBSOURCE(_AC_FILE_NAME)])])
2648 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
2649 # --------------------------------------------
2650 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2651 m4_define([_AC_LIBOBJ],
2652 [AS_LITERAL_IF([$1],
2653 [AC_LIBSOURCE([$1.c])],
2655 case " $LIB@&t@OBJS " in
2656 *" $1.$ac_objext "* ) ;;
2657 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
2662 # AC_LIBOBJ(FILE-NAME-NOEXT)
2663 # -------------------------
2664 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2665 m4_define([AC_LIBOBJ],
2667 [AC_DIAGNOSE(syntax,
2668 [$0($1): you should use literals])])dnl
2672 # _AC_LIBOBJS_NORMALIZE
2673 # ---------------------
2674 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
2675 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
2676 # Used with AC_CONFIG_COMMANDS_PRE.
2677 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
2680 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
2681 # 1. Remove the extension, and $U if already installed.
2682 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
2683 ac_i=`AS_ECHO(["$ac_i"]) | sed "$ac_script"`
2684 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
2685 # will be set to the directory where LIBOBJS objects are built.
2686 ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
2687 ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
2689 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
2690 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
2694 ## ----------------------------------- ##
2695 ## Checking compiler characteristics. ##
2696 ## ----------------------------------- ##
2699 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2700 # -------------------------------------------------------------------
2701 # Compute the integer EXPRESSION and store the result in the VARIABLE.
2702 # Works OK if cross compiling, but assumes twos-complement arithmetic.
2703 m4_define([_AC_COMPUTE_INT_COMPILE],
2704 [# Depending upon the size, compute the lo and hi bounds.
2705 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
2708 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2709 [ac_hi=$ac_mid; break],
2710 [ac_lo=`expr $ac_mid + 1`
2711 if test $ac_lo -le $ac_mid; then
2715 ac_mid=`expr 2 '*' $ac_mid + 1`])
2717 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
2720 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
2721 [ac_lo=$ac_mid; break],
2722 [ac_hi=`expr '(' $ac_mid ')' - 1`
2723 if test $ac_mid -le $ac_hi; then
2727 ac_mid=`expr 2 '*' $ac_mid`])
2730 # Binary search between lo and hi bounds.
2731 while test "x$ac_lo" != "x$ac_hi"; do
2732 ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
2733 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2734 [ac_hi=$ac_mid], [ac_lo=`expr '(' $ac_mid ')' + 1`])
2740 ])# _AC_COMPUTE_INT_COMPILE
2743 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2744 # ---------------------------------------------------------------
2745 # Store the evaluation of the integer EXPRESSION in VARIABLE.
2746 m4_define([_AC_COMPUTE_INT_RUN],
2747 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
2748 [$2=`cat conftest.val`], [$4])])
2751 # AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS])
2752 # ----------------------------------------------------------
2753 AC_DEFUN([AC_COMPUTE_INT],
2754 [AC_LANG_COMPILER_REQUIRE()dnl
2755 if test "$cross_compiling" = yes; then
2756 _AC_COMPUTE_INT_COMPILE([$2], [$1], [$3], [$4])
2758 _AC_COMPUTE_INT_RUN([$2], [$1], [$3], [$4])
2760 rm -f conftest.val[]dnl
2763 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2764 # -----------------------------------------------------------
2765 # FIXME: this private interface was used by several packages.
2766 # Give them time to transition to AC_COMPUTE_INT and then delete this one.
2767 AC_DEFUN([_AC_COMPUTE_INT],
2768 [AC_COMPUTE_INT([$2], [$1], [$3], [$4])
2769 AC_DIAGNOSE([obsolete],
2770 [The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a
2771 future version or Autoconf. Hence, it is suggested that you use
2772 instead the public AC_COMPUTE_INT macro. Note that the arguments are
2773 slightly different between the two.])dnl