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 m4_ifdef([_AC_PRECIOUS_VARS],
413 [_AC_ARG_VAR_STORE[]dnl
414 _AC_ARG_VAR_VALIDATE[]dnl
415 ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
416 m4_ifdef([_AC_LIST_SUBDIRS],
417 [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
419 ])# _AC_INIT_DEFAULTS
422 # AC_PREFIX_DEFAULT(PREFIX)
423 # -------------------------
424 AC_DEFUN([AC_PREFIX_DEFAULT],
425 [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])])
428 # AC_PREFIX_PROGRAM(PROGRAM)
429 # --------------------------
430 # Guess the value for the `prefix' variable by looking for
431 # the argument program along PATH and taking its parent.
432 # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
433 # set `prefix' to /usr/local/gnu.
434 # This comes too late to find a site file based on the prefix,
435 # and it might use a cached value for the path.
436 # No big loss, I think, since most configures don't use this macro anyway.
437 AC_DEFUN([AC_PREFIX_PROGRAM],
438 [if test "x$prefix" = xNONE; then
439 dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle.
440 _AS_ECHO_N([checking for prefix by ])
441 AC_PATH_PROG(ac_prefix_program, [$1])
442 if test -n "$ac_prefix_program"; then
443 prefix=`AS_DIRNAME(["$ac_prefix_program"])`
444 prefix=`AS_DIRNAME(["$prefix"])`
447 ])# AC_PREFIX_PROGRAM
450 # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
451 # ---------------------------------------------
452 # UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
453 # relative to the directory that configure is in, which we can look
454 # for to find out if srcdir is correct.
455 AC_DEFUN([AC_CONFIG_SRCDIR],
456 [m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
461 # Set ac_pwd, and sanity-check it and the source and installation directories.
463 # (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
465 AC_DEFUN([_AC_INIT_DIRCHECK],
466 [m4_divert_push([PARSE_ARGS])dnl
468 ac_pwd=`pwd` && test -n "$ac_pwd" &&
469 ac_ls_di=`ls -di .` &&
470 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
471 AC_MSG_ERROR([Working directory cannot be determined])
472 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
473 AC_MSG_ERROR([pwd does not report name of working directory])
475 m4_divert_pop([PARSE_ARGS])dnl
476 ])# _AC_INIT_DIRCHECK
480 # Compute `srcdir' based on `$ac_unique_file'.
482 # (We have to AC_DEFUN it, since we use AC_REQUIRE.)
484 AC_DEFUN([_AC_INIT_SRCDIR],
485 [AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
486 m4_divert_push([PARSE_ARGS])dnl
488 # Find the source files, if location was not specified.
489 if test -z "$srcdir"; then
490 ac_srcdir_defaulted=yes
491 # Try the directory containing this script, then the parent directory.
492 ac_confdir=`AS_DIRNAME(["$[0]"])`
494 if test ! -r "$srcdir/$ac_unique_file"; then
498 ac_srcdir_defaulted=no
500 if test ! -r "$srcdir/$ac_unique_file"; then
501 test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
502 AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
504 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
506 cd $srcdir && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
508 # When building in place, set srcdir=.
509 if test "$ac_abs_confdir" = "$ac_pwd"; then
512 # Remove unnecessary trailing slashes from srcdir.
513 # Double slashes in file names in object file debugging info
514 # mess up M-x gdb in Emacs.
516 */) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
518 m4_divert_pop([PARSE_ARGS])dnl
522 # _AC_INIT_PARSE_ARGS
523 # -------------------
524 m4_define([_AC_INIT_PARSE_ARGS],
525 [m4_divert_push([PARSE_ARGS])dnl
527 # Initialize some variables set by options.
529 ac_init_version=false
530 # The variables have the same names as the options, with
531 # dashes changed to underlines.
533 AC_SUBST(exec_prefix, NONE)dnl
536 AC_SUBST(prefix, NONE)dnl
539 AC_SUBST(program_transform_name, [s,x,x,])dnl
547 # Installation directory options.
548 # These are left unexpanded so users can "make install exec_prefix=/foo"
549 # and all the variables that are supposed to be based on exec_prefix
550 # by default will actually change.
551 # Use braces instead of parens because sh, perl, etc. also accept them.
552 # (The list follows the same order as the GNU Coding Standards.)
553 AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
554 AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
555 AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
556 AC_SUBST([datarootdir], ['${prefix}/share'])dnl
557 AC_SUBST([datadir], ['${datarootdir}'])dnl
558 AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
559 AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
560 AC_SUBST([localstatedir], ['${prefix}/var'])dnl
561 AC_SUBST([includedir], ['${prefix}/include'])dnl
562 AC_SUBST([oldincludedir], ['/usr/include'])dnl
563 AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
564 ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
565 ['${datarootdir}/doc/${PACKAGE}'])])dnl
566 AC_SUBST([infodir], ['${datarootdir}/info'])dnl
567 AC_SUBST([htmldir], ['${docdir}'])dnl
568 AC_SUBST([dvidir], ['${docdir}'])dnl
569 AC_SUBST([pdfdir], ['${docdir}'])dnl
570 AC_SUBST([psdir], ['${docdir}'])dnl
571 AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
572 AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
573 AC_SUBST([mandir], ['${datarootdir}/man'])dnl
579 # If the previous option needs an argument, assign it.
580 if test -n "$ac_prev"; then
581 eval $ac_prev=\$ac_option
587 *=*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
591 # Accept the important Cygnus configure options, so we can diagnose typos.
593 case $ac_dashdash$ac_option in
597 -bindir | --bindir | --bindi | --bind | --bin | --bi)
599 -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
602 -build | --build | --buil | --bui | --bu)
603 ac_prev=build_alias ;;
604 -build=* | --build=* | --buil=* | --bui=* | --bu=*)
605 build_alias=$ac_optarg ;;
607 -cache-file | --cache-file | --cache-fil | --cache-fi \
608 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
609 ac_prev=cache_file ;;
610 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
611 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
612 cache_file=$ac_optarg ;;
615 cache_file=config.cache ;;
617 -datadir | --datadir | --datadi | --datad)
619 -datadir=* | --datadir=* | --datadi=* | --datad=*)
620 datadir=$ac_optarg ;;
622 -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
623 | --dataroo | --dataro | --datar)
624 ac_prev=datarootdir ;;
625 -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
626 | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
627 datarootdir=$ac_optarg ;;
629 -disable-* | --disable-*)
630 ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
631 # Reject names that are not valid shell variable names.
632 expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
633 AC_MSG_ERROR([invalid feature name: $ac_feature])
634 ac_feature=`echo $ac_feature | sed 's/-/_/g'`
635 eval enable_$ac_feature=no ;;
637 -docdir | --docdir | --docdi | --doc | --do)
639 -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
642 -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
644 -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
647 -enable-* | --enable-*)
648 ac_feature=`expr "x$ac_option" : 'x-*enable-\([[^=]]*\)'`
649 # Reject names that are not valid shell variable names.
650 expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
651 AC_MSG_ERROR([invalid feature name: $ac_feature])
652 ac_feature=`echo $ac_feature | sed 's/-/_/g'`
653 eval enable_$ac_feature=\$ac_optarg ;;
655 -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
656 | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
657 | --exec | --exe | --ex)
658 ac_prev=exec_prefix ;;
659 -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
660 | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
661 | --exec=* | --exe=* | --ex=*)
662 exec_prefix=$ac_optarg ;;
664 -gas | --gas | --ga | --g)
665 # Obsolete; use --with-gas.
668 -help | --help | --hel | --he | -h)
670 -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
671 ac_init_help=recursive ;;
672 -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
673 ac_init_help=short ;;
675 -host | --host | --hos | --ho)
676 ac_prev=host_alias ;;
677 -host=* | --host=* | --hos=* | --ho=*)
678 host_alias=$ac_optarg ;;
680 -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
682 -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
684 htmldir=$ac_optarg ;;
686 -includedir | --includedir | --includedi | --included | --include \
687 | --includ | --inclu | --incl | --inc)
688 ac_prev=includedir ;;
689 -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
690 | --includ=* | --inclu=* | --incl=* | --inc=*)
691 includedir=$ac_optarg ;;
693 -infodir | --infodir | --infodi | --infod | --info | --inf)
695 -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
696 infodir=$ac_optarg ;;
698 -libdir | --libdir | --libdi | --libd)
700 -libdir=* | --libdir=* | --libdi=* | --libd=*)
703 -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
704 | --libexe | --libex | --libe)
705 ac_prev=libexecdir ;;
706 -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
707 | --libexe=* | --libex=* | --libe=*)
708 libexecdir=$ac_optarg ;;
710 -localedir | --localedir | --localedi | --localed | --locale)
712 -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
713 localedir=$ac_optarg ;;
715 -localstatedir | --localstatedir | --localstatedi | --localstated \
716 | --localstate | --localstat | --localsta | --localst | --locals)
717 ac_prev=localstatedir ;;
718 -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
719 | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
720 localstatedir=$ac_optarg ;;
722 -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
724 -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
728 # Obsolete; use --without-fp.
731 -no-create | --no-create | --no-creat | --no-crea | --no-cre \
732 | --no-cr | --no-c | -n)
735 -no-recursion | --no-recursion | --no-recursio | --no-recursi \
736 | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
739 -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
740 | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
741 | --oldin | --oldi | --old | --ol | --o)
742 ac_prev=oldincludedir ;;
743 -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
744 | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
745 | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
746 oldincludedir=$ac_optarg ;;
748 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
750 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
753 -program-prefix | --program-prefix | --program-prefi | --program-pref \
754 | --program-pre | --program-pr | --program-p)
755 ac_prev=program_prefix ;;
756 -program-prefix=* | --program-prefix=* | --program-prefi=* \
757 | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
758 program_prefix=$ac_optarg ;;
760 -program-suffix | --program-suffix | --program-suffi | --program-suff \
761 | --program-suf | --program-su | --program-s)
762 ac_prev=program_suffix ;;
763 -program-suffix=* | --program-suffix=* | --program-suffi=* \
764 | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
765 program_suffix=$ac_optarg ;;
767 -program-transform-name | --program-transform-name \
768 | --program-transform-nam | --program-transform-na \
769 | --program-transform-n | --program-transform- \
770 | --program-transform | --program-transfor \
771 | --program-transfo | --program-transf \
772 | --program-trans | --program-tran \
773 | --progr-tra | --program-tr | --program-t)
774 ac_prev=program_transform_name ;;
775 -program-transform-name=* | --program-transform-name=* \
776 | --program-transform-nam=* | --program-transform-na=* \
777 | --program-transform-n=* | --program-transform-=* \
778 | --program-transform=* | --program-transfor=* \
779 | --program-transfo=* | --program-transf=* \
780 | --program-trans=* | --program-tran=* \
781 | --progr-tra=* | --program-tr=* | --program-t=*)
782 program_transform_name=$ac_optarg ;;
784 -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
786 -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
789 -psdir | --psdir | --psdi | --psd | --ps)
791 -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
794 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
795 | -silent | --silent | --silen | --sile | --sil)
798 -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
800 -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
802 sbindir=$ac_optarg ;;
804 -sharedstatedir | --sharedstatedir | --sharedstatedi \
805 | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
806 | --sharedst | --shareds | --shared | --share | --shar \
808 ac_prev=sharedstatedir ;;
809 -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
810 | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
811 | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
813 sharedstatedir=$ac_optarg ;;
815 -site | --site | --sit)
817 -site=* | --site=* | --sit=*)
820 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
822 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
825 -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
826 | --syscon | --sysco | --sysc | --sys | --sy)
827 ac_prev=sysconfdir ;;
828 -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
829 | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
830 sysconfdir=$ac_optarg ;;
832 -target | --target | --targe | --targ | --tar | --ta | --t)
833 ac_prev=target_alias ;;
834 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
835 target_alias=$ac_optarg ;;
837 -v | -verbose | --verbose | --verbos | --verbo | --verb)
840 -version | --version | --versio | --versi | --vers | -V)
844 ac_package=`expr "x$ac_option" : 'x-*with-\([[^=]]*\)'`
845 # Reject names that are not valid shell variable names.
846 expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
847 AC_MSG_ERROR([invalid package name: $ac_package])
848 ac_package=`echo $ac_package| sed 's/-/_/g'`
849 eval with_$ac_package=\$ac_optarg ;;
851 -without-* | --without-*)
852 ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
853 # Reject names that are not valid shell variable names.
854 expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
855 AC_MSG_ERROR([invalid package name: $ac_package])
856 ac_package=`echo $ac_package | sed 's/-/_/g'`
857 eval with_$ac_package=no ;;
860 # Obsolete; use --with-x.
863 -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
864 | --x-incl | --x-inc | --x-in | --x-i)
865 ac_prev=x_includes ;;
866 -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
867 | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
868 x_includes=$ac_optarg ;;
870 -x-libraries | --x-libraries | --x-librarie | --x-librari \
871 | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
872 ac_prev=x_libraries ;;
873 -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
874 | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
875 x_libraries=$ac_optarg ;;
877 -*) AC_MSG_ERROR([unrecognized option: $ac_option
878 Try `$[0] --help' for more information.])
882 ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
883 # Reject names that are not valid shell variable names.
884 expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
885 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 $ac_option])
905 # Be sure to have absolute directory names.
906 for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
907 datadir sysconfdir sharedstatedir localstatedir includedir \
908 oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
909 libdir localedir mandir
911 eval ac_val=\$$ac_var
913 [[\\/$]]* | ?:[[\\/]]* ) continue;;
914 NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
916 AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
919 # There might be people who depend on the old broken behavior: `$host'
920 # used to hold the argument of --host etc.
921 # FIXME: To remove some day.
926 # FIXME: To remove some day.
927 if test "x$host_alias" != x; then
928 if test "x$build_alias" = x; then
929 cross_compiling=maybe
930 AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
931 If a cross compiler is detected then cross compile mode will be used.])
932 elif test "x$build_alias" != "x$host_alias"; then
938 test -n "$host_alias" && ac_tool_prefix=$host_alias-
940 test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
942 m4_divert_pop([PARSE_ARGS])dnl
943 ])# _AC_INIT_PARSE_ARGS
948 # Handle the `configure --help' message.
949 m4_define([_AC_INIT_HELP],
950 [m4_divert_push([HELP_BEGIN])dnl
953 # Report the --help message.
955 if test "$ac_init_help" = "long"; then
956 # Omit some internal or obsolete options to make the list less imposing.
957 # This message is too long to be a string in the A/UX 3.1 sh.
959 \`configure' configures m4_ifset([AC_PACKAGE_STRING],
961 [this package]) to adapt to many kinds of systems.
963 Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
965 [To assign environment variables (e.g., CC, CFLAGS...), specify them as
966 VAR=VALUE. See below for descriptions of some of the useful variables.
968 Defaults for the options are specified in brackets.
971 -h, --help display this help and exit
972 --help=short display options specific to this package
973 --help=recursive display the short help of all the included packages
974 -V, --version display version information and exit
975 -q, --quiet, --silent do not print \`checking...' messages
976 --cache-file=FILE cache test results in FILE [disabled]
977 -C, --config-cache alias for \`--cache-file=config.cache'
978 -n, --no-create do not create output files
979 --srcdir=DIR find the sources in DIR [configure dir or \`..']
981 Installation directories:
982 --prefix=PREFIX install architecture-independent files in PREFIX
984 --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
987 By default, \`make install' will install all the files in
988 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
989 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
990 for instance \`--prefix=\$HOME'.
992 For better control, use the options below.
994 Fine tuning of the installation directories:
995 --bindir=DIR user executables [EPREFIX/bin]
996 --sbindir=DIR system admin executables [EPREFIX/sbin]
997 --libexecdir=DIR program executables [EPREFIX/libexec]
998 --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
999 --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
1000 --localstatedir=DIR modifiable single-machine data [PREFIX/var]
1001 --libdir=DIR object code libraries [EPREFIX/lib]
1002 --includedir=DIR C header files [PREFIX/include]
1003 --oldincludedir=DIR C header files for non-gcc [/usr/include]
1004 --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
1005 --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
1006 --infodir=DIR info documentation [DATAROOTDIR/info]
1007 --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
1008 --mandir=DIR man documentation [DATAROOTDIR/man]
1009 --docdir=DIR documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME], [AC_PACKAGE_TARNAME], [PACKAGE])@:>@[
1010 --htmldir=DIR html documentation [DOCDIR]
1011 --dvidir=DIR dvi documentation [DOCDIR]
1012 --pdfdir=DIR pdf documentation [DOCDIR]
1013 --psdir=DIR ps documentation [DOCDIR]
1017 m4_divert_pop([HELP_BEGIN])dnl
1018 dnl The order of the diversions here is
1020 dnl which may be extended by extra generic options such as with X or
1021 dnl AC_ARG_PROGRAM. Displayed only in long --help.
1024 dnl Support for cross compilation (--build, --host and --target).
1025 dnl Display only in long --help.
1028 dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
1029 dnl then implements the header of the non generic options.
1038 dnl initialized below, in which we dump the trailer (handling of the
1039 dnl recursion for instance).
1040 m4_divert_push([HELP_ENABLE])dnl
1044 if test -n "$ac_init_help"; then
1045 m4_ifset([AC_PACKAGE_STRING],
1046 [ case $ac_init_help in
1047 short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
1050 m4_divert_pop([HELP_ENABLE])dnl
1051 m4_divert_push([HELP_END])dnl
1052 m4_ifset([AC_PACKAGE_BUGREPORT], [
1053 Report bugs to <AC_PACKAGE_BUGREPORT>.])
1058 if test "$ac_init_help" = "recursive"; then
1059 # If there are subdirs, report their specific --help.
1060 for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
1061 test -d $ac_dir || continue
1062 _AC_SRCDIRS(["$ac_dir"])
1063 cd $ac_dir || { ac_status=$?; continue; }
1064 # Check for guested configure.
1065 if test -f $ac_srcdir/configure.gnu; then
1067 $SHELL $ac_srcdir/configure.gnu --help=recursive
1068 elif test -f $ac_srcdir/configure; then
1070 $SHELL $ac_srcdir/configure --help=recursive
1072 AC_MSG_WARN([no configuration information is in $ac_dir])
1074 cd "$ac_pwd" || { ac_status=$?; break; }
1078 test -n "$ac_init_help" && exit $ac_status
1079 m4_divert_pop([HELP_END])dnl
1085 # Handle the `configure --version' message.
1086 m4_define([_AC_INIT_VERSION],
1087 [m4_divert_text([VERSION_BEGIN],
1088 [if $ac_init_version; then
1090 m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
1091 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
1092 generated by m4_PACKAGE_STRING])
1093 m4_divert_text([VERSION_END],
1097 ])# _AC_INIT_VERSION
1100 # _AC_INIT_CONFIG_LOG
1101 # -------------------
1102 # Initialize the config.log file descriptor and write header to it.
1103 m4_define([_AC_INIT_CONFIG_LOG],
1104 [m4_divert_text([INIT_PREPARE],
1105 [m4_define([AS_MESSAGE_LOG_FD], 5)dnl
1106 exec AS_MESSAGE_LOG_FD>config.log
1107 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1108 This file contains any messages produced by compilers while
1109 running configure, to aid debugging if configure makes a mistake.
1111 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1112 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1113 generated by m4_PACKAGE_STRING. Invocation command line was
1118 AS_UNAME >&AS_MESSAGE_LOG_FD
1120 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1123 m4_text_box([Core tests.])
1126 ])])# _AC_INIT_CONFIG_LOG
1131 # Called by AC_INIT to build the preamble of the `configure' scripts.
1132 # 1. Trap and clean up various tmp files.
1133 # 2. Set up the fd and output files
1134 # 3. Remember the options given to `configure' for `config.status --recheck'.
1135 # 4. Initiates confdefs.h
1136 # 5. Loads site and cache files
1137 m4_define([_AC_INIT_PREPARE],
1138 [m4_divert_push([INIT_PREPARE])dnl
1140 # Keep a trace of the command line.
1141 # Strip out --no-create and --no-recursion so they do not pile up.
1142 # Strip out --silent because we don't want to record it for future runs.
1143 # Also quote any args containing shell meta-characters.
1144 # Make two passes to allow for proper duplicate-argument suppression.
1149 ac_must_keep_next=false
1155 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1156 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1157 | -silent | --silent | --silen | --sile | --sil)
1159 dnl If you change this globbing pattern, test it on an old shell --
1160 dnl it's sensitive. Putting any kind of quote in it causes syntax errors.
1161 [ *" "*|*" "*|*[\\\[\~\#\$\^\&\*\(\)\{\}\|\;\<\>\?\"\']*|*\]*)]
1162 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
1165 1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
1167 ac_configure_args1="$ac_configure_args1 '$ac_arg'"
1168 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1169 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1170 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1171 dnl give --prefix foo bar).
1172 if test $ac_must_keep_next = true; then
1173 ac_must_keep_next=false # Got value, back to normal.
1176 dnl Use broad patterns, as arguments that would have already made configure
1177 dnl exit don't matter.
1178 *=* | --config-cache | -C | -disable-* | --disable-* \
1179 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1180 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1181 | -with-* | --with-* | -without-* | --without-* | --x)
1182 case "$ac_configure_args0 " in
1183 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1186 -* ) ac_must_keep_next=true ;;
1189 ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
1190 # Get rid of the leading space.
1196 AS_UNSET(ac_configure_args0)
1197 AS_UNSET(ac_configure_args1)
1199 # When interrupted or exit'd, cleanup temporary files, and complete
1200 # config.log. We remove comments because anyway the quotes in there
1201 # would cause problems or look ugly.
1202 # WARNING: Use '\'' to represent an apostrophe within the trap.
1205 # Save into config.log some information that might help in debugging.
1209 AS_BOX([Cache variables.])
1211 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1217 AS_BOX([Output variables.])
1219 for ac_var in $ac_subst_vars
1221 eval ac_val=\$$ac_var
1222 echo "$ac_var='\''$ac_val'\''"
1226 if test -n "$ac_subst_files"; then
1227 AS_BOX([File substitutions.])
1229 for ac_var in $ac_subst_files
1231 eval ac_val=\$$ac_var
1232 echo "$ac_var='\''$ac_val'\''"
1237 if test -s confdefs.h; then
1238 AS_BOX([confdefs.h.])
1243 test "$ac_signal" != 0 &&
1244 echo "$as_me: caught signal $ac_signal"
1245 echo "$as_me: exit $exit_status"
1246 } >&AS_MESSAGE_LOG_FD
1247 rm -f core *.core core.conftest.* &&
1248 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1251 for ac_signal in 1 2 13 15; do
1252 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1256 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1257 rm -f -r conftest* confdefs.h
1258 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1259 dnl containing less than 14 bytes (including the newline).
1260 dnl But the defines below solve this problem.
1262 # Predefined preprocessor variables.
1263 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1264 [Define to the full name of this package.])
1265 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1266 [Define to the one symbol short name of this package.])
1267 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1268 [Define to the version of this package.])
1269 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1270 [Define to the full name and version of this package.])
1271 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1272 [Define to the address where bug reports for this package
1275 # Let the site file select an alternate cache file if it wants to.
1278 m4_divert_pop([INIT_PREPARE])dnl
1279 ])# _AC_INIT_PREPARE
1282 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1283 # ----------------------------------------
1284 # This macro is used only for Autoupdate.
1286 [m4_ifval([$2], [[AC_INIT($@)]],
1289 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1293 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT])
1294 # ----------------------------------------
1295 # Include the user macro files, prepare the diversions, and output the
1296 # preamble of the `configure' script.
1297 # Note that the order is important: first initialize, then set the
1299 m4_define([AC_INIT],
1300 [# Forbidden tokens and exceptions.
1301 m4_pattern_forbid([^_?A[CHUM]_])
1302 m4_pattern_forbid([_AC_])
1303 m4_pattern_forbid([^LIBOBJS$],
1304 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1305 # Actually reserved by M4sh.
1306 m4_pattern_allow([^AS_FLAGS$])
1309 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1320 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1322 dnl Substitute for predefined variables.
1324 AC_SUBST([ECHO_C])dnl
1325 AC_SUBST([ECHO_N])dnl
1326 AC_SUBST([ECHO_T])dnl
1328 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1329 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1330 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1338 ## ------------------------------------------------------------- ##
1339 ## Selecting optional features, working with optional software. ##
1340 ## ------------------------------------------------------------- ##
1342 # AC_PRESERVE_HELP_ORDER
1343 # ----------------------
1344 # Emit help strings in the order given, rather than grouping all --enable-FOO
1345 # and all --with-BAR.
1346 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1347 [m4_divert_once([HELP_ENABLE], [[
1348 Optional Features and Packages:
1349 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1350 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1351 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1352 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1353 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1354 ])# AC_PRESERVE_HELP_ORDER
1356 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1357 # -------------------------------------------------------------------
1358 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1359 # OPTION is either "enable" or "with".
1361 m4_define([_AC_ENABLE_IF],
1362 [# Check whether --$1-$2 was given.
1363 _AC_ENABLE_IF_ACTION([$1], m4_bpatsubst([$2], -, _), [$3], [$4])[]dnl
1366 m4_define([_AC_ENABLE_IF_ACTION],
1367 [AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
1370 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1371 # ------------------------------------------------------------------------
1372 AC_DEFUN([AC_ARG_ENABLE],
1373 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1375 [m4_divert_once([HELP_ENABLE], [[
1377 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1378 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1379 m4_divert_once([HELP_ENABLE], [$2])dnl
1380 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1384 AU_DEFUN([AC_ENABLE],
1385 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1388 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1389 # --------------------------------------------------------------------
1390 AC_DEFUN([AC_ARG_WITH],
1391 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1393 [m4_divert_once([HELP_WITH], [[
1395 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1396 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1397 m4_divert_once([HELP_WITH], [$2])dnl
1398 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1402 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1406 ## ----------------------------------------- ##
1407 ## Remembering variables for reconfiguring. ##
1408 ## ----------------------------------------- ##
1411 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1412 # ----------------------------------
1413 # Register VARNAME as a precious variable, and document it in
1414 # `configure --help' (but only once).
1415 AC_DEFUN([AC_ARG_VAR],
1416 [m4_divert_once([HELP_VAR], [[
1417 Some influential environment variables:]])dnl
1418 m4_divert_once([HELP_VAR_END], [[
1419 Use these variables to override the choices made by `configure' or to help
1420 it to find libraries and programs with nonstandard names/locations.]])dnl
1421 m4_expand_once([m4_divert_text([HELP_VAR],
1422 [AS_HELP_STRING([$1], [$2], [ ])])],
1425 _AC_ARG_VAR_PRECIOUS([$1])dnl
1429 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1430 # -----------------------------
1431 # Declare VARNAME is precious.
1432 m4_define([_AC_ARG_VAR_PRECIOUS],
1433 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1440 # We try to diagnose when precious variables have changed. To do this,
1441 # make two early snapshots (after the option processing to take
1442 # explicit variables into account) of those variables: one (ac_env_)
1443 # which represents the current run, and a second (ac_cv_env_) which,
1444 # at the first run, will be saved in the cache. As an exception to
1445 # the cache mechanism, its loading will override these variables (non
1446 # `ac_cv_env_' cache value are only set when unset).
1448 # In subsequent runs, after having loaded the cache, compare
1449 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1450 m4_define([_AC_ARG_VAR_STORE],
1451 [m4_divert_text([PARSE_ARGS],
1452 [for ac_var in $ac_precious_vars; do
1453 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1454 eval ac_env_${ac_var}_value=\$${ac_var}
1455 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1456 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1461 # _AC_ARG_VAR_VALIDATE
1462 # --------------------
1463 # The precious variables are saved twice at the beginning of
1464 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1465 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1466 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1468 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1469 # content of the cached values, while `ac_env_' represents that of the
1472 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1474 m4_define([_AC_ARG_VAR_VALIDATE],
1475 [m4_divert_text([INIT_PREPARE],
1476 [# Check that the precious variables saved in the cache have kept the same
1478 ac_cache_corrupted=false
1479 for ac_var in $ac_precious_vars; do
1480 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1481 eval ac_new_set=\$ac_env_${ac_var}_set
1482 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1483 eval ac_new_val=\$ac_env_${ac_var}_value
1484 case $ac_old_set,$ac_new_set in
1486 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1487 ac_cache_corrupted=: ;;
1489 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1490 ac_cache_corrupted=: ;;
1493 if test "x$ac_old_val" != "x$ac_new_val"; then
1494 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1495 AS_MESSAGE([ former value: $ac_old_val], 2)
1496 AS_MESSAGE([ current value: $ac_new_val], 2)
1497 ac_cache_corrupted=:
1500 # Pass precious variables to config.status.
1501 if test "$ac_new_set" = set; then
1503 dnl If you change this globbing pattern, test it on an old shell --
1504 dnl it's sensitive. Putting any kind of quote in it causes syntax errors.
1505 [ *" "*|*" "*|*[\\\[\~\#\$\^\&\*\(\)\{\}\|\;\<\>\?\"\']*|*\]*)]
1506 ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
1507 *) ac_arg=$ac_var=$ac_new_val ;;
1509 case " $ac_configure_args " in
1510 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1511 *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
1515 if $ac_cache_corrupted; then
1516 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1517 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1519 ])# _AC_ARG_VAR_VALIDATE
1525 ## ---------------------------- ##
1526 ## Transforming program names. ##
1527 ## ---------------------------- ##
1532 # This macro is expanded only once, to avoid that `foo' ends up being
1533 # installed as `ggfoo'.
1534 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1535 [dnl Document the options.
1536 m4_divert_push([HELP_BEGIN])dnl
1539 --program-prefix=PREFIX prepend PREFIX to installed program names
1540 --program-suffix=SUFFIX append SUFFIX to installed program names
1541 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1542 m4_divert_pop([HELP_BEGIN])dnl
1543 test "$program_prefix" != NONE &&
1544 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1545 # Use a double $ so make ignores it.
1546 test "$program_suffix" != NONE &&
1547 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1548 # Double any \ or $. echo might interpret backslashes.
1549 # By default was `s,x,x', remove it if useless.
1550 cat <<\_ACEOF >conftest.sed
1551 [s/[\\$]/&&/g;s/;s,x,x,$//]
1553 program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
1561 ## ------------------------- ##
1562 ## Finding auxiliary files. ##
1563 ## ------------------------- ##
1566 # AC_CONFIG_AUX_DIR(DIR)
1567 # ----------------------
1568 # Find install-sh, config.sub, config.guess, and Cygnus configure
1569 # in directory DIR. These are auxiliary files used in configuration.
1570 # DIR can be either absolute or relative to $srcdir.
1571 AC_DEFUN([AC_CONFIG_AUX_DIR],
1572 [AC_CONFIG_AUX_DIRS($1 $srcdir/$1)])
1575 # AC_CONFIG_AUX_DIR_DEFAULT
1576 # -------------------------
1577 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1578 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1579 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1580 [AC_CONFIG_AUX_DIRS($srcdir $srcdir/.. $srcdir/../..)])
1583 # AC_CONFIG_AUX_DIRS(DIR ...)
1584 # ---------------------------
1585 # Internal subroutine.
1586 # Search for the configuration auxiliary files in directory list $1.
1587 # We look only for install-sh, so users of AC_PROG_INSTALL
1588 # do not automatically need to distribute the other auxiliary files.
1589 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1591 for ac_dir in $1; do
1592 if test -f $ac_dir/install-sh; then
1594 ac_install_sh="$ac_aux_dir/install-sh -c"
1596 elif test -f $ac_dir/install.sh; then
1598 ac_install_sh="$ac_aux_dir/install.sh -c"
1600 elif test -f $ac_dir/shtool; then
1602 ac_install_sh="$ac_aux_dir/shtool install -c"
1606 if test -z "$ac_aux_dir"; then
1607 AC_MSG_ERROR([cannot find install-sh or install.sh in $1])
1609 ac_config_guess="$SHELL $ac_aux_dir/config.guess"
1610 ac_config_sub="$SHELL $ac_aux_dir/config.sub"
1611 ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
1612 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1613 ])# AC_CONFIG_AUX_DIRS
1618 ## ------------------------ ##
1619 ## Finding aclocal macros. ##
1620 ## ------------------------ ##
1623 # AC_CONFIG_MACRO_DIR(DIR)
1624 # ------------------------
1625 # Declare directory containing additional macros for aclocal.
1626 # DIR can be either absolute or relative to $srcdir.
1627 AC_DEFUN([AC_CONFIG_MACRO_DIR],
1629 [[\\/]]* | ?:[[\\/]]* ) ac_macro_dir=$1 ;;
1630 *) ac_macro_dir=$srcdir/$1 ;;
1632 test -d "$ac_macro_dir" ||
1633 AC_MSG_ERROR([cannot find macro directory `$1'])
1634 ])# AC_CONFIG_MACRO_DIR
1638 ## --------------------- ##
1639 ## Requiring aux files. ##
1640 ## --------------------- ##
1642 # AC_REQUIRE_AUX_FILE(FILE)
1643 # -------------------------
1644 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1645 # It announces FILE is required in the auxdir.
1646 m4_define([AC_REQUIRE_AUX_FILE],
1647 [AS_LITERAL_IF([$1], [],
1648 [AC_FATAL([$0: requires a literal argument])])])
1652 ## ----------------------------------- ##
1653 ## Getting the canonical system type. ##
1654 ## ----------------------------------- ##
1657 # configure --host=HOST --target=TARGET --build=BUILD
1660 # 1. Build defaults to the current platform, as determined by config.guess.
1661 # 2. Host defaults to build.
1662 # 3. Target defaults to host.
1665 # _AC_CANONICAL_SPLIT(THING)
1666 # --------------------------
1667 # Generate the variables THING, THING_{alias cpu vendor os}.
1668 m4_define([_AC_CANONICAL_SPLIT],
1671 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1673 AC_SUBST([$1], [$ac_cv_$1])dnl
1674 ac_save_IFS=$IFS; IFS='-'
1677 AC_SUBST([$1_cpu], [$[1]])dnl
1678 AC_SUBST([$1_vendor], [$[2]])dnl
1680 [# Remember, the first character of IFS is used to create $]*:
1681 AC_SUBST([$1_os], [$[*]])dnl
1683 ])# _AC_CANONICAL_SPLIT
1686 # AC_CANONICAL_BUILD
1687 # ------------------
1688 AC_DEFUN([AC_CANONICAL_BUILD],
1689 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1690 AC_REQUIRE_AUX_FILE([config.sub])dnl
1691 AC_REQUIRE_AUX_FILE([config.guess])dnl
1692 m4_divert_once([HELP_CANON],
1695 --build=BUILD configure for building on BUILD [guessed]]])dnl
1696 # Make sure we can run config.sub.
1697 $ac_config_sub sun4 >/dev/null 2>&1 ||
1698 AC_MSG_ERROR([cannot run $ac_config_sub])
1700 AC_CACHE_CHECK([build system type], [ac_cv_build],
1701 [ac_build_alias=$build_alias
1702 test "x$ac_build_alias" = x &&
1703 ac_build_alias=`$ac_config_guess`
1704 test "x$ac_build_alias" = x &&
1705 AC_MSG_ERROR([cannot guess build type; you must specify one])
1706 ac_cv_build=`$ac_config_sub $ac_build_alias` ||
1707 AC_MSG_ERROR([$ac_config_sub $ac_build_alias failed])
1709 _AC_CANONICAL_SPLIT(build)
1710 ])# AC_CANONICAL_BUILD
1715 AC_DEFUN([AC_CANONICAL_HOST],
1716 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1717 m4_divert_once([HELP_CANON],
1718 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1719 AC_CACHE_CHECK([host system type], [ac_cv_host],
1720 [if test "x$host_alias" = x; then
1721 ac_cv_host=$ac_cv_build
1723 ac_cv_host=`$ac_config_sub $host_alias` ||
1724 AC_MSG_ERROR([$ac_config_sub $host_alias failed])
1727 _AC_CANONICAL_SPLIT([host])
1728 ])# AC_CANONICAL_HOST
1731 # AC_CANONICAL_TARGET
1732 # -------------------
1733 AC_DEFUN([AC_CANONICAL_TARGET],
1734 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1735 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1736 m4_divert_once([HELP_CANON],
1737 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1738 AC_CACHE_CHECK([target system type], [ac_cv_target],
1739 [if test "x$target_alias" = x; then
1740 ac_cv_target=$ac_cv_host
1742 ac_cv_target=`$ac_config_sub $target_alias` ||
1743 AC_MSG_ERROR([$ac_config_sub $target_alias failed])
1746 _AC_CANONICAL_SPLIT([target])
1748 # The aliases save the names the user supplied, while $host etc.
1749 # will get canonicalized.
1750 test -n "$target_alias" &&
1751 test "$program_prefix$program_suffix$program_transform_name" = \
1753 program_prefix=${target_alias}-[]dnl
1754 ])# AC_CANONICAL_TARGET
1757 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1760 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1761 # ------------------------------------------
1762 # If the cache file is inconsistent with the current host,
1763 # target and build system types, execute CMD or print a default
1764 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1765 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1768 ## ---------------------- ##
1769 ## Caching test results. ##
1770 ## ---------------------- ##
1775 # Look for site or system specific initialization scripts.
1776 m4_define([AC_SITE_LOAD],
1777 [# Prefer explicitly selected file to automatically selected ones.
1778 if test -n "$CONFIG_SITE"; then
1779 set x "$CONFIG_SITE"
1780 elif test "x$prefix" != xNONE; then
1781 set x "$prefix/share/config.site" "$prefix/etc/config.site"
1783 set x "$ac_default_prefix/share/config.site" \
1784 "$ac_default_prefix/etc/config.site"
1789 if test -r "$ac_site_file"; then
1790 AC_MSG_NOTICE([loading site script $ac_site_file])
1791 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1800 m4_define([AC_CACHE_LOAD],
1801 [if test -r "$cache_file"; then
1802 # Some versions of bash will fail to source /dev/null (special
1803 # files actually), so we avoid doing that.
1804 if test -f "$cache_file"; then
1805 AC_MSG_NOTICE([loading cache $cache_file])
1807 [[\\/]]* | ?:[[\\/]]* ) . $cache_file;;
1808 *) . ./$cache_file;;
1812 AC_MSG_NOTICE([creating cache $cache_file])
1820 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1821 m4_define([_AC_CACHE_DUMP],
1822 [# The following way of writing the cache mishandles newlines in values,
1823 # but we know of no workaround that is simple, portable, and efficient.
1824 # So, we kill variables containing newlines.
1825 # Ultrix sh set writes to stderr and can't be redirected directly,
1826 # and sets the high bit in the cache file unless we assign to the vars.
1828 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1829 eval ac_val=\$$ac_var
1833 *_cv_*) AC_MSG_WARN([Cache variable $ac_var contains a newline.]) ;;
1836 _ | IFS | as_nl) ;; #(
1837 *) $as_unset $ac_var ;;
1843 case $as_nl`(ac_space=' '; set) 2>&1` in #(
1844 *${as_nl}ac_space=\ *)
1845 # `set' does not quote correctly, so add quotes (double-quote
1846 # substitution turns \\\\ into \\, and sed turns \\ into \).
1849 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
1852 # `set' quotes correctly as required by POSIX, so do not add quotes.
1853 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
1863 # Allow a site initialization script to override cache values.
1864 m4_define([AC_CACHE_SAVE],
1865 [cat >confcache <<\_ACEOF
1866 # This file is a shell script that caches the results of configure
1867 # tests run on this system so they can be shared between configure
1868 # scripts and configure runs, see configure's option --config-cache.
1869 # It is not useful on other systems. If it contains results you don't
1870 # want to keep, you may remove or edit it.
1872 # config.status only pays attention to the cache file if you give it
1873 # the --recheck option to rerun configure.
1875 # `ac_cv_env_foo' variables (set or unset) will be overridden when
1876 # loading this file, other *unset* `ac_cv_foo' will be assigned the
1886 s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
1888 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
1890 if diff $cache_file confcache >/dev/null 2>&1; then :; else
1891 if test -w $cache_file; then
1892 test "x$cache_file" != "x/dev/null" &&
1893 AC_MSG_NOTICE([updating cache $cache_file])
1894 cat confcache >$cache_file
1896 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
1899 rm -f confcache[]dnl
1903 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
1904 # ------------------------------------------
1905 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
1906 # Should be dnl'ed. Try to catch common mistakes.
1907 m4_defun([AC_CACHE_VAL],
1908 [m4_bmatch([$2], [AC_DEFINE],
1909 [AC_DIAGNOSE([syntax],
1910 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
1911 [where no actions should be taken])])dnl
1913 [_AS_ECHO_N([(cached) ])],
1917 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
1918 # -------------------------------------------
1919 # Do not call this macro with a dnl right behind.
1920 m4_defun([AC_CACHE_CHECK],
1921 [AC_MSG_CHECKING([$1])
1922 AC_CACHE_VAL([$2], [$3])dnl
1924 [AC_MSG_RESULT([$$2])],
1925 [ac_res=AS_VAR_GET([$2])
1926 AC_MSG_RESULT([$ac_res])])dnl
1931 ## ---------------------- ##
1932 ## Defining CPP symbols. ##
1933 ## ---------------------- ##
1936 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
1937 # -------------------------------------------
1938 # This macro is useless, it is used only with --trace to collect the
1939 # list of *literals* CPP values passed to AC_DEFINE/AC_DEFINE_UNQUOTED.
1940 m4_define([AC_DEFINE_TRACE_LITERAL])
1943 # AC_DEFINE_TRACE(CPP-SYMBOL)
1944 # ---------------------------
1945 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
1946 # out non literal symbols.
1947 m4_define([AC_DEFINE_TRACE],
1948 [AS_LITERAL_IF([$1], [AC_DEFINE_TRACE_LITERAL([$1])])])
1951 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
1952 # -------------------------------------------
1953 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
1954 # and if VARIABLE is affected the same VALUE, do nothing, else
1955 # die. The third argument is used by autoheader.
1956 m4_define([AC_DEFINE], [_AC_DEFINE_Q([\], $@)])
1959 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
1960 # ----------------------------------------------------
1961 # Similar, but perform shell substitutions $ ` \ once on VALUE.
1962 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([], $@)])
1965 # _AC_DEFINE_Q(QUOTE, VARIABLE, [VALUE], [DESCRIPTION])
1966 # -----------------------------------------------------
1967 m4_define([_AC_DEFINE_Q],
1968 [AC_DEFINE_TRACE([$2])dnl
1969 m4_ifval([$4], [AH_TEMPLATE(m4_bpatsubst([[$2]], [(.*)]), [$4])])dnl
1970 cat >>confdefs.h <<$1_ACEOF
1971 [@%:@define] $2 m4_if($#, 2, 1, [$3])
1977 ## -------------------------- ##
1978 ## Setting output variables. ##
1979 ## -------------------------- ##
1982 # AC_SUBST_TRACE(VARIABLE)
1983 # ------------------------
1984 # This macro is used with --trace to collect the list of substituted variables.
1985 m4_define([AC_SUBST_TRACE])
1988 # AC_SUBST(VARIABLE, [VALUE])
1989 # ---------------------------
1990 # Create an output variable from a shell VARIABLE. If VALUE is given
1991 # assign it to VARIABLE. Use `""' is you want to set VARIABLE to an
1992 # empty value, not an empty second argument.
1994 m4_define([AC_SUBST],
1995 [AC_SUBST_TRACE([$1])dnl
1996 m4_pattern_allow([^$1$])dnl
1997 m4_ifvaln([$2], [$1=$2])[]dnl
1998 m4_append_uniq([_AC_SUBST_VARS], [$1], [
2003 # AC_SUBST_FILE(VARIABLE)
2004 # -----------------------
2005 # Read the comments of the preceding macro.
2006 m4_define([AC_SUBST_FILE],
2007 [m4_pattern_allow([^$1$])dnl
2008 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2013 ## --------------------------------------- ##
2014 ## Printing messages at autoconf runtime. ##
2015 ## --------------------------------------- ##
2017 # In fact, I think we should promote the use of m4_warn and m4_fatal
2018 # directly. This will also avoid to some people to get it wrong
2019 # between AC_FATAL and AC_MSG_ERROR.
2022 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2023 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2024 # --------------------------------
2025 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2026 m4_define([AC_FATAL], [m4_fatal($@)])
2029 # AC_WARNING(MESSAGE)
2030 # -------------------
2031 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2033 m4_define([AC_WARNING],
2034 [AC_DIAGNOSE([syntax], [$1])])
2039 ## ---------------------------------------- ##
2040 ## Printing messages at configure runtime. ##
2041 ## ---------------------------------------- ##
2044 # AC_MSG_CHECKING(FEATURE)
2045 # ------------------------
2046 m4_define([AC_MSG_CHECKING],
2047 [{ _AS_ECHO_LOG([checking $1])
2048 _AS_ECHO_N([checking $1... ]); }dnl
2052 # AC_MSG_RESULT(RESULT)
2053 # ---------------------
2054 m4_define([AC_MSG_RESULT],
2055 [{ _AS_ECHO_LOG([result: $1])
2056 _AS_ECHO([${ECHO_T}$1]); }dnl
2060 # AC_MSG_WARN(PROBLEM)
2061 # AC_MSG_NOTICE(STRING)
2062 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2063 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2064 # ----------------------------------------
2065 m4_copy([AS_WARN], [AC_MSG_WARN])
2066 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2067 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2068 m4_define([AC_MSG_FAILURE],
2070 See `config.log' for more details.], [$2])])
2073 # _AC_MSG_LOG_CONFTEST
2074 # --------------------
2075 m4_define([_AC_MSG_LOG_CONFTEST],
2076 [echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD
2077 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2081 # AU::AC_CHECKING(FEATURE)
2082 # ------------------------
2083 AU_DEFUN([AC_CHECKING],
2084 [AS_MESSAGE([checking $1...])])
2087 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2088 # ----------------------------------
2089 # No escaping, so it performed also backtick substitution.
2090 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2091 [_AS_ECHO_UNQUOTED([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
2092 _AS_ECHO_UNQUOTED([${ECHO_T}$1])[]dnl
2096 # AU::AC_VERBOSE(STRING)
2097 # ----------------------
2098 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2105 ## ---------------------------- ##
2106 ## Compiler-running mechanics. ##
2107 ## ---------------------------- ##
2110 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2111 # ----------------------------------
2112 # Eval COMMAND, save the exit status in ac_status, and log it.
2113 AC_DEFUN([_AC_RUN_LOG],
2114 [{ ($2) >&AS_MESSAGE_LOG_FD
2115 ($1) 2>&AS_MESSAGE_LOG_FD
2117 _AS_ECHO_LOG([\$? = $ac_status])
2118 (exit $ac_status); }])
2121 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2122 # -----------------------------------------
2123 # Run COMMAND, save its stderr into conftest.err, save the exit status
2124 # in ac_status, and log it. Don't forget to clean up conftest.err after
2126 # Note that when tracing, most shells will leave the traces in stderr
2127 # starting with "+": that's what this macro tries to address.
2128 AC_DEFUN([_AC_RUN_LOG_STDERR],
2129 [{ ($2) >&AS_MESSAGE_LOG_FD
2132 grep -v '^ *+' conftest.er1 >conftest.err
2134 cat conftest.err >&AS_MESSAGE_LOG_FD
2135 _AS_ECHO_LOG([\$? = $ac_status])
2136 (exit $ac_status); }])
2141 # Eval COMMAND, save the exit status in ac_status, and log it.
2142 AC_DEFUN([_AC_EVAL],
2143 [_AC_RUN_LOG([eval $1],
2144 [eval echo "$as_me:$LINENO: \"$1\""])])
2147 # _AC_EVAL_STDERR(COMMAND)
2148 # ------------------------
2149 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2150 AC_DEFUN([_AC_EVAL_STDERR],
2151 [_AC_RUN_LOG_STDERR([eval $1],
2152 [eval echo "$as_me:$LINENO: \"$1\""])])
2155 # AC_TRY_EVAL(VARIABLE)
2156 # ---------------------
2157 # The purpose of this macro is to "configure:123: command line"
2158 # written into config.log for every test run.
2159 AC_DEFUN([AC_TRY_EVAL],
2163 # AC_TRY_COMMAND(COMMAND)
2164 # -----------------------
2165 AC_DEFUN([AC_TRY_COMMAND],
2167 _AC_EVAL([$ac_try]); }])
2170 # AC_RUN_LOG(COMMAND)
2171 # -------------------
2172 AC_DEFUN([AC_RUN_LOG],
2174 [echo "$as_me:$LINENO: AS_ESCAPE([$1])"])])
2179 ## ------------------------ ##
2180 ## Examining declarations. ##
2181 ## ------------------------ ##
2185 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2186 # ----------------------------------------------------------------
2187 # Try to preprocess PROGRAM.
2189 # This macro can be used during the selection of a preprocessor.
2190 # Run cpp and set ac_cpp_err to "yes" for an error, to
2191 # "$ac_(c,cxx)_preproc_warn_flag" if there are warnings or to "" if
2192 # neither warnings nor errors have been detected. eval is necessary
2194 AC_DEFUN([_AC_PREPROC_IFELSE],
2195 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2196 if _AC_EVAL_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null; then
2197 if test -s conftest.err; then
2198 ac_cpp_err=$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag
2199 ac_cpp_err=$ac_cpp_err$ac_[]_AC_LANG_ABBREV[]_werror_flag
2206 AS_IF([test -z "$ac_cpp_err"], [$2], [_AC_MSG_LOG_CONFTEST
2208 rm -f conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl
2209 ])# _AC_PREPROC_IFELSE
2212 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2213 # ---------------------------------------------------------------
2214 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2215 # current language was checked for, hence do not use this macro in macros
2216 # looking for a preprocessor.
2217 AC_DEFUN([AC_PREPROC_IFELSE],
2218 [AC_LANG_PREPROC_REQUIRE()dnl
2219 _AC_PREPROC_IFELSE($@)])
2222 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2223 # ---------------------------------------------------------
2224 # AC_TRY_CPP is used to check whether particular header files exist.
2225 # (But it actually tests whether INCLUDES produces no CPP errors.)
2227 # INCLUDES are not defaulted and are double quoted.
2228 AU_DEFUN([AC_TRY_CPP],
2229 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2232 # AC_EGREP_CPP(PATTERN, PROGRAM,
2233 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2234 # ------------------------------------------------------
2235 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2236 # come early, it is not included in AC_BEFORE checks.
2237 AC_DEFUN([AC_EGREP_CPP],
2238 [AC_LANG_PREPROC_REQUIRE()dnl
2239 AC_REQUIRE([AC_PROG_EGREP])dnl
2240 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2241 AS_IF([dnl eval is necessary to expand ac_cpp.
2242 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2243 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2244 dnl Quote $1 to prevent m4 from eating character classes
2245 $EGREP "[$1]" >/dev/null 2>&1],
2252 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2253 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2254 # ---------------------------------------------------------
2255 AC_DEFUN([AC_EGREP_HEADER],
2263 ## ------------------ ##
2264 ## Examining syntax. ##
2265 ## ------------------ ##
2268 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2269 # ---------------------------------------------------------------------
2270 # Try to compile PROGRAM.
2271 # This macro can be used during the selection of a compiler.
2272 m4_define([_AC_COMPILE_IFELSE],
2273 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2274 rm -f conftest.$ac_objext
2275 AS_IF([_AC_EVAL_STDERR($ac_compile) &&
2276 AC_TRY_COMMAND([test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag"
2277 || test ! -s conftest.err]) &&
2278 AC_TRY_COMMAND([test -s conftest.$ac_objext])],
2280 [_AC_MSG_LOG_CONFTEST
2282 rm -f conftest.err conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2283 ])# _AC_COMPILE_IFELSE
2286 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2287 # --------------------------------------------------------------------
2288 # Try to compile PROGRAM. Requires that the compiler for the current
2289 # language was checked for, hence do not use this macro in macros looking
2291 AC_DEFUN([AC_COMPILE_IFELSE],
2292 [AC_LANG_COMPILER_REQUIRE()dnl
2293 _AC_COMPILE_IFELSE($@)])
2296 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2297 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2298 # --------------------------------------------------------
2299 AU_DEFUN([AC_TRY_COMPILE],
2300 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2304 ## --------------------- ##
2305 ## Examining libraries. ##
2306 ## --------------------- ##
2309 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2310 # ------------------------------------------------------------------
2311 # Try to link PROGRAM.
2312 # This macro can be used during the selection of a compiler.
2313 m4_define([_AC_LINK_IFELSE],
2314 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2315 rm -f conftest.$ac_objext conftest$ac_exeext
2316 AS_IF([_AC_EVAL_STDERR($ac_link) &&
2317 AC_TRY_COMMAND([test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag"
2318 || test ! -s conftest.err]) &&
2319 AC_TRY_COMMAND([test -s conftest$ac_exeext])],
2321 [_AC_MSG_LOG_CONFTEST
2323 rm -f conftest.err conftest.$ac_objext \
2324 conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2328 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2329 # -----------------------------------------------------------------
2330 # Try to link PROGRAM. Requires that the compiler for the current
2331 # language was checked for, hence do not use this macro in macros looking
2333 AC_DEFUN([AC_LINK_IFELSE],
2334 [AC_LANG_COMPILER_REQUIRE()dnl
2335 _AC_LINK_IFELSE($@)])
2338 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2339 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2340 # -----------------------------------------------------
2341 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2342 AU_DEFUN([AC_TRY_LINK],
2343 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2346 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2347 # ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND])
2348 # --------------------------------------------------------
2349 AU_DEFUN([AC_COMPILE_CHECK],
2350 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2351 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2356 ## -------------------------------- ##
2357 ## Checking for run-time features. ##
2358 ## -------------------------------- ##
2361 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2362 # ------------------------------------------------------------
2363 # Compile, link, and run.
2364 # This macro can be used during the selection of a compiler.
2365 # We also remove conftest.o as if the compilation fails, some compilers
2366 # don't remove it. We remove gmon.out and bb.out, which may be
2367 # created during the run if the program is built with profiling support.
2368 m4_define([_AC_RUN_IFELSE],
2369 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2370 rm -f conftest$ac_exeext
2371 AS_IF([AC_TRY_EVAL(ac_link) && AC_TRY_COMMAND(./conftest$ac_exeext)],
2373 [echo "$as_me: program exited with status $ac_status" >&AS_MESSAGE_LOG_FD
2374 _AC_MSG_LOG_CONFTEST
2376 [( exit $ac_status )
2378 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext m4_ifval([$1],
2379 [conftest.$ac_ext])[]dnl
2383 # AC_RUN_IFELSE(PROGRAM,
2384 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2385 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2386 # ----------------------------------------------------------
2387 # Compile, link, and run. Requires that the compiler for the current
2388 # language was checked for, hence do not use this macro in macros looking
2390 AC_DEFUN([AC_RUN_IFELSE],
2391 [AC_LANG_COMPILER_REQUIRE()dnl
2393 [AC_DIAGNOSE([cross],
2394 [$0 called without default to allow cross compiling])])dnl
2395 AS_IF([test "$cross_compiling" = yes],
2397 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2398 [_AC_RUN_IFELSE($@)])
2402 # AC_TRY_RUN(PROGRAM,
2403 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2404 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2405 # --------------------------------------------------------
2406 AU_DEFUN([AC_TRY_RUN],
2407 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2411 ## ------------------------------------- ##
2412 ## Checking for the existence of files. ##
2413 ## ------------------------------------- ##
2415 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2416 # -------------------------------------------------------------
2418 # Check for the existence of FILE.
2419 AC_DEFUN([AC_CHECK_FILE],
2420 [AC_DIAGNOSE([cross],
2421 [cannot check for file existence when cross compiling])dnl
2422 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2423 AC_CACHE_CHECK([for $1], ac_File,
2424 [test "$cross_compiling" = yes &&
2425 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2426 if test -r "$1"; then
2427 AS_VAR_SET(ac_File, yes)
2429 AS_VAR_SET(ac_File, no)
2431 AS_IF([test AS_VAR_GET(ac_File) = yes], [$2], [$3])[]dnl
2432 AS_VAR_POPDEF([ac_File])dnl
2436 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2437 # -----------------------------------------------------------------
2438 AC_DEFUN([AC_CHECK_FILES],
2439 [m4_foreach_w([AC_FILE_NAME], [$1],
2440 [AC_CHECK_FILE(AC_FILE_NAME,
2441 [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]AC_FILE_NAME), 1,
2442 [Define to 1 if you have the
2448 ## ------------------------------- ##
2449 ## Checking for declared symbols. ##
2450 ## ------------------------------- ##
2453 # AC_CHECK_DECL(SYMBOL,
2454 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2455 # [INCLUDES = DEFAULT-INCLUDES])
2456 # -------------------------------------------------------
2457 # Check if SYMBOL (a variable or a function) is declared.
2458 AC_DEFUN([AC_CHECK_DECL],
2459 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])dnl
2460 AC_CACHE_CHECK([whether $1 is declared], ac_Symbol,
2461 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
2463 char *p = (char *) $1;
2467 [AS_VAR_SET(ac_Symbol, yes)],
2468 [AS_VAR_SET(ac_Symbol, no)])])
2469 AS_IF([test AS_VAR_GET(ac_Symbol) = yes], [$2], [$3])[]dnl
2470 AS_VAR_POPDEF([ac_Symbol])dnl
2474 # AC_CHECK_DECLS(SYMBOLS,
2475 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2476 # [INCLUDES = DEFAULT-INCLUDES])
2477 # --------------------------------------------------------
2478 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2479 # documentation for a detailed explanation of this difference with
2480 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2481 AC_DEFUN([AC_CHECK_DECLS],
2482 [m4_foreach([AC_Symbol], [$1],
2483 [AC_CHECK_DECL(AC_Symbol,
2484 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 1,
2485 [Define to 1 if you have the declaration
2486 of `]AC_Symbol[', and to 0 if you don't.])
2488 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 0)
2494 # AC_CHECK_DECLS_ONCE(SYMBOLS)
2495 # ----------------------------
2496 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
2497 AC_DEFUN([AC_CHECK_DECLS_ONCE],
2499 m4_foreach([AC_Symbol], [$1],
2500 [AC_DEFUN([_AC_Check_Decl_]m4_defn([AC_Symbol]),
2501 [AC_CHECK_DECLS(m4_defn([AC_Symbol]))])
2502 AC_REQUIRE([_AC_Check_Decl_]m4_defn([AC_Symbol]))])
2507 ## ---------------------------------- ##
2508 ## Replacement of library functions. ##
2509 ## ---------------------------------- ##
2512 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
2513 # -----------------------------
2514 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
2515 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
2516 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
2519 # AC_LIBSOURCE(FILE-NAME)
2520 # -----------------------
2521 # Announce we might need the file `FILE-NAME'.
2522 m4_define([AC_LIBSOURCE], [])
2525 # AC_LIBSOURCES([FILE-NAME1, ...])
2526 # -------------------------------
2527 # Announce we might need these files.
2528 m4_define([AC_LIBSOURCES],
2529 [m4_foreach([_AC_FILE_NAME], [$1],
2530 [AC_LIBSOURCE(_AC_FILE_NAME)])])
2533 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
2534 # --------------------------------------------
2535 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2536 m4_define([_AC_LIBOBJ],
2537 [AS_LITERAL_IF([$1],
2538 [AC_LIBSOURCE([$1.c])],
2540 case " $LIB@&t@OBJS " in
2541 *" $1.$ac_objext "* ) ;;
2542 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
2547 # AC_LIBOBJ(FILE-NAME-NOEXT)
2548 # -------------------------
2549 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2550 m4_define([AC_LIBOBJ],
2552 [AC_DIAGNOSE(syntax,
2553 [$0($1): you should use literals])])dnl
2557 # _AC_LIBOBJS_NORMALIZE
2558 # ---------------------
2559 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
2560 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
2561 # Used with AC_CONFIG_COMMANDS_PRE.
2562 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
2565 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
2566 # 1. Remove the extension, and $U if already installed.
2567 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
2568 ac_i=`echo "$ac_i" | sed "$ac_script"`
2569 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
2570 # will be set to the directory where LIBOBJS objects are built.
2571 ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
2572 ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
2574 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
2575 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
2579 ## ----------------------------------- ##
2580 ## Checking compiler characteristics. ##
2581 ## ----------------------------------- ##
2584 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2585 # -------------------------------------------------------------------
2586 # Compute the integer EXPRESSION and store the result in the VARIABLE.
2587 # Works OK if cross compiling, but assumes twos-complement arithmetic.
2588 m4_define([_AC_COMPUTE_INT_COMPILE],
2589 [# Depending upon the size, compute the lo and hi bounds.
2590 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
2593 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2594 [ac_hi=$ac_mid; break],
2595 [ac_lo=`expr $ac_mid + 1`
2596 if test $ac_lo -le $ac_mid; then
2600 ac_mid=`expr 2 '*' $ac_mid + 1`])
2602 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
2605 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
2606 [ac_lo=$ac_mid; break],
2607 [ac_hi=`expr '(' $ac_mid ')' - 1`
2608 if test $ac_mid -le $ac_hi; then
2612 ac_mid=`expr 2 '*' $ac_mid`])
2615 # Binary search between lo and hi bounds.
2616 while test "x$ac_lo" != "x$ac_hi"; do
2617 ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
2618 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2619 [ac_hi=$ac_mid], [ac_lo=`expr '(' $ac_mid ')' + 1`])
2625 ])# _AC_COMPUTE_INT_COMPILE
2628 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2629 # ---------------------------------------------------------------
2630 # Store the evaluation of the integer EXPRESSION in VARIABLE.
2631 m4_define([_AC_COMPUTE_INT_RUN],
2632 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
2633 [$2=`cat conftest.val`], [$4])])
2636 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, IF-FAILS)
2637 # ---------------------------------------------------------
2638 m4_define([_AC_COMPUTE_INT],
2639 [AC_LANG_COMPILER_REQUIRE()dnl
2640 if test "$cross_compiling" = yes; then
2641 _AC_COMPUTE_INT_COMPILE([$1], [$2], [$3], [$4])
2643 _AC_COMPUTE_INT_RUN([$1], [$2], [$3], [$4])
2645 rm -f conftest.val[]dnl