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 cat >config.log <<_ACEOF
1107 This file contains any messages produced by compilers while
1108 running configure, to aid debugging if configure makes a mistake.
1110 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1111 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1112 generated by m4_PACKAGE_STRING. Invocation command line was
1117 exec AS_MESSAGE_LOG_FD>>config.log
1118 AS_UNAME >&AS_MESSAGE_LOG_FD
1120 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1123 m4_text_box([Core tests.])
1126 ])])# _AC_INIT_CONFIG_LOG
1131 # Called by AC_INIT to build the preamble of the `configure' scripts.
1132 # 1. Trap and clean up various tmp files.
1133 # 2. Set up the fd and output files
1134 # 3. Remember the options given to `configure' for `config.status --recheck'.
1135 # 4. Initiates confdefs.h
1136 # 5. Loads site and cache files
1137 m4_define([_AC_INIT_PREPARE],
1138 [m4_divert_push([INIT_PREPARE])dnl
1140 # Keep a trace of the command line.
1141 # Strip out --no-create and --no-recursion so they do not pile up.
1142 # Strip out --silent because we don't want to record it for future runs.
1143 # Also quote any args containing shell meta-characters.
1144 # Make two passes to allow for proper duplicate-argument suppression.
1148 ac_must_keep_next=false
1154 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1155 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1156 | -silent | --silent | --silen | --sile | --sil)
1159 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
1162 1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
1164 ac_configure_args1="$ac_configure_args1 '$ac_arg'"
1165 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1166 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1167 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1168 dnl give --prefix foo bar).
1169 if test $ac_must_keep_next = true; then
1170 ac_must_keep_next=false # Got value, back to normal.
1173 dnl Use broad patterns, as arguments that would have already made configure
1174 dnl exit don't matter.
1175 *=* | --config-cache | -C | -disable-* | --disable-* \
1176 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1177 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1178 | -with-* | --with-* | -without-* | --without-* | --x)
1179 case "$ac_configure_args0 " in
1180 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1183 -* ) ac_must_keep_next=true ;;
1186 ac_configure_args="$ac_configure_args '$ac_arg'"
1191 AS_UNSET(ac_configure_args0)
1192 AS_UNSET(ac_configure_args1)
1194 # When interrupted or exit'd, cleanup temporary files, and complete
1195 # config.log. We remove comments because anyway the quotes in there
1196 # would cause problems or look ugly.
1197 # WARNING: Use '\'' to represent an apostrophe within the trap.
1198 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
1199 trap 'exit_status=$?
1200 # Save into config.log some information that might help in debugging.
1204 AS_BOX([Cache variables.])
1206 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1212 AS_BOX([Output variables.])
1214 for ac_var in $ac_subst_vars
1216 eval ac_val=\$$ac_var
1218 *\'\''*) ac_val=`echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1220 echo "$ac_var='\''$ac_val'\''"
1224 if test -n "$ac_subst_files"; then
1225 AS_BOX([File substitutions.])
1227 for ac_var in $ac_subst_files
1229 eval ac_val=\$$ac_var
1231 *\'\''*) ac_val=`echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1233 echo "$ac_var='\''$ac_val'\''"
1238 if test -s confdefs.h; then
1239 AS_BOX([confdefs.h.])
1244 test "$ac_signal" != 0 &&
1245 echo "$as_me: caught signal $ac_signal"
1246 echo "$as_me: exit $exit_status"
1247 } >&AS_MESSAGE_LOG_FD
1248 rm -f core *.core core.conftest.* &&
1249 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1252 for ac_signal in 1 2 13 15; do
1253 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1257 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1258 rm -f -r conftest* confdefs.h
1259 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1260 dnl containing less than 14 bytes (including the newline).
1261 dnl But the defines below solve this problem.
1263 # Predefined preprocessor variables.
1264 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1265 [Define to the full name of this package.])
1266 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1267 [Define to the one symbol short name of this package.])
1268 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1269 [Define to the version of this package.])
1270 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1271 [Define to the full name and version of this package.])
1272 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1273 [Define to the address where bug reports for this package
1276 # Let the site file select an alternate cache file if it wants to.
1279 m4_divert_pop([INIT_PREPARE])dnl
1280 ])# _AC_INIT_PREPARE
1283 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1284 # ----------------------------------------
1285 # This macro is used only for Autoupdate.
1287 [m4_ifval([$2], [[AC_INIT($@)]],
1290 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1294 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT])
1295 # ----------------------------------------
1296 # Include the user macro files, prepare the diversions, and output the
1297 # preamble of the `configure' script.
1298 # Note that the order is important: first initialize, then set the
1300 m4_define([AC_INIT],
1301 [# Forbidden tokens and exceptions.
1302 m4_pattern_forbid([^_?A[CHUM]_])
1303 m4_pattern_forbid([_AC_])
1304 m4_pattern_forbid([^LIBOBJS$],
1305 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1306 # Actually reserved by M4sh.
1307 m4_pattern_allow([^AS_FLAGS$])
1310 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1321 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1323 dnl Substitute for predefined variables.
1325 AC_SUBST([ECHO_C])dnl
1326 AC_SUBST([ECHO_N])dnl
1327 AC_SUBST([ECHO_T])dnl
1329 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1330 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1331 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1339 ## ------------------------------------------------------------- ##
1340 ## Selecting optional features, working with optional software. ##
1341 ## ------------------------------------------------------------- ##
1343 # AC_PRESERVE_HELP_ORDER
1344 # ----------------------
1345 # Emit help strings in the order given, rather than grouping all --enable-FOO
1346 # and all --with-BAR.
1347 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1348 [m4_divert_once([HELP_ENABLE], [[
1349 Optional Features and Packages:
1350 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1351 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1352 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1353 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1354 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1355 ])# AC_PRESERVE_HELP_ORDER
1357 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1358 # -------------------------------------------------------------------
1359 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1360 # OPTION is either "enable" or "with".
1362 m4_define([_AC_ENABLE_IF],
1363 [# Check whether --$1-$2 was given.
1364 _AC_ENABLE_IF_ACTION([$1], m4_bpatsubst([$2], -, _), [$3], [$4])[]dnl
1367 m4_define([_AC_ENABLE_IF_ACTION],
1368 [AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
1371 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1372 # ------------------------------------------------------------------------
1373 AC_DEFUN([AC_ARG_ENABLE],
1374 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1376 [m4_divert_once([HELP_ENABLE], [[
1378 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1379 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1380 m4_divert_once([HELP_ENABLE], [$2])dnl
1381 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1385 AU_DEFUN([AC_ENABLE],
1386 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1389 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1390 # --------------------------------------------------------------------
1391 AC_DEFUN([AC_ARG_WITH],
1392 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1394 [m4_divert_once([HELP_WITH], [[
1396 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1397 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1398 m4_divert_once([HELP_WITH], [$2])dnl
1399 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1403 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1407 ## ----------------------------------------- ##
1408 ## Remembering variables for reconfiguring. ##
1409 ## ----------------------------------------- ##
1412 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1413 # ----------------------------------
1414 # Register VARNAME as a precious variable, and document it in
1415 # `configure --help' (but only once).
1416 AC_DEFUN([AC_ARG_VAR],
1417 [m4_divert_once([HELP_VAR], [[
1418 Some influential environment variables:]])dnl
1419 m4_divert_once([HELP_VAR_END], [[
1420 Use these variables to override the choices made by `configure' or to help
1421 it to find libraries and programs with nonstandard names/locations.]])dnl
1422 m4_expand_once([m4_divert_text([HELP_VAR],
1423 [AS_HELP_STRING([$1], [$2], [ ])])],
1426 _AC_ARG_VAR_PRECIOUS([$1])dnl
1430 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1431 # -----------------------------
1432 # Declare VARNAME is precious.
1433 m4_define([_AC_ARG_VAR_PRECIOUS],
1434 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1441 # We try to diagnose when precious variables have changed. To do this,
1442 # make two early snapshots (after the option processing to take
1443 # explicit variables into account) of those variables: one (ac_env_)
1444 # which represents the current run, and a second (ac_cv_env_) which,
1445 # at the first run, will be saved in the cache. As an exception to
1446 # the cache mechanism, its loading will override these variables (non
1447 # `ac_cv_env_' cache value are only set when unset).
1449 # In subsequent runs, after having loaded the cache, compare
1450 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1451 m4_define([_AC_ARG_VAR_STORE],
1452 [m4_divert_text([PARSE_ARGS],
1453 [for ac_var in $ac_precious_vars; do
1454 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1455 eval ac_env_${ac_var}_value=\$${ac_var}
1456 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1457 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1462 # _AC_ARG_VAR_VALIDATE
1463 # --------------------
1464 # The precious variables are saved twice at the beginning of
1465 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1466 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1467 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1469 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1470 # content of the cached values, while `ac_env_' represents that of the
1473 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1475 m4_define([_AC_ARG_VAR_VALIDATE],
1476 [m4_divert_text([INIT_PREPARE],
1477 [# Check that the precious variables saved in the cache have kept the same
1479 ac_cache_corrupted=false
1480 for ac_var in $ac_precious_vars; do
1481 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1482 eval ac_new_set=\$ac_env_${ac_var}_set
1483 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1484 eval ac_new_val=\$ac_env_${ac_var}_value
1485 case $ac_old_set,$ac_new_set in
1487 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1488 ac_cache_corrupted=: ;;
1490 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1491 ac_cache_corrupted=: ;;
1494 if test "x$ac_old_val" != "x$ac_new_val"; then
1495 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1496 AS_MESSAGE([ former value: $ac_old_val], 2)
1497 AS_MESSAGE([ current value: $ac_new_val], 2)
1498 ac_cache_corrupted=:
1501 # Pass precious variables to config.status.
1502 if test "$ac_new_set" = set; then
1504 *\'*) ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
1505 *) ac_arg=$ac_var=$ac_new_val ;;
1507 case " $ac_configure_args " in
1508 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1509 *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
1513 if $ac_cache_corrupted; then
1514 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1515 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1517 ])# _AC_ARG_VAR_VALIDATE
1523 ## ---------------------------- ##
1524 ## Transforming program names. ##
1525 ## ---------------------------- ##
1530 # This macro is expanded only once, to avoid that `foo' ends up being
1531 # installed as `ggfoo'.
1532 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1533 [dnl Document the options.
1534 m4_divert_push([HELP_BEGIN])dnl
1537 --program-prefix=PREFIX prepend PREFIX to installed program names
1538 --program-suffix=SUFFIX append SUFFIX to installed program names
1539 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1540 m4_divert_pop([HELP_BEGIN])dnl
1541 test "$program_prefix" != NONE &&
1542 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1543 # Use a double $ so make ignores it.
1544 test "$program_suffix" != NONE &&
1545 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1546 # Double any \ or $. echo might interpret backslashes.
1547 # By default was `s,x,x', remove it if useless.
1548 cat <<\_ACEOF >conftest.sed
1549 [s/[\\$]/&&/g;s/;s,x,x,$//]
1551 program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
1559 ## ------------------------- ##
1560 ## Finding auxiliary files. ##
1561 ## ------------------------- ##
1564 # AC_CONFIG_AUX_DIR(DIR)
1565 # ----------------------
1566 # Find install-sh, config.sub, config.guess, and Cygnus configure
1567 # in directory DIR. These are auxiliary files used in configuration.
1568 # DIR can be either absolute or relative to $srcdir.
1569 AC_DEFUN([AC_CONFIG_AUX_DIR],
1570 [AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
1573 # AC_CONFIG_AUX_DIR_DEFAULT
1574 # -------------------------
1575 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1576 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1577 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1578 [AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
1581 # AC_CONFIG_AUX_DIRS(DIR ...)
1582 # ---------------------------
1583 # Internal subroutine.
1584 # Search for the configuration auxiliary files in directory list $1.
1585 # We look only for install-sh, so users of AC_PROG_INSTALL
1586 # do not automatically need to distribute the other auxiliary files.
1587 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1589 for ac_dir in $1; do
1590 if test -f "$ac_dir/install-sh"; then
1592 ac_install_sh="$ac_aux_dir/install-sh -c"
1594 elif test -f "$ac_dir/install.sh"; then
1596 ac_install_sh="$ac_aux_dir/install.sh -c"
1598 elif test -f "$ac_dir/shtool"; then
1600 ac_install_sh="$ac_aux_dir/shtool install -c"
1604 if test -z "$ac_aux_dir"; then
1605 AC_MSG_ERROR([cannot find install-sh or install.sh in $1])
1608 # These three variables are undocumented and unsupported,
1609 # and are intended to be withdrawn in a future Autoconf release.
1610 # They can cause serious problems if a builder's source tree is in a directory
1611 # whose full name contains unusual characters.
1612 ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
1613 ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
1614 ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
1616 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1617 ])# AC_CONFIG_AUX_DIRS
1622 ## ------------------------ ##
1623 ## Finding aclocal macros. ##
1624 ## ------------------------ ##
1627 # AC_CONFIG_MACRO_DIR(DIR)
1628 # ------------------------
1629 # Declare directory containing additional macros for aclocal.
1630 # DIR can be either absolute or relative to $srcdir.
1631 AC_DEFUN([AC_CONFIG_MACRO_DIR],
1633 [[\\/]]* | ?:[[\\/]]* ) ac_macro_dir=$1 ;;
1634 *) ac_macro_dir=$srcdir/$1 ;;
1636 test -d "$ac_macro_dir" ||
1637 AC_MSG_ERROR([cannot find macro directory `$1'])
1638 ])# AC_CONFIG_MACRO_DIR
1642 ## --------------------- ##
1643 ## Requiring aux files. ##
1644 ## --------------------- ##
1646 # AC_REQUIRE_AUX_FILE(FILE)
1647 # -------------------------
1648 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1649 # It announces FILE is required in the auxdir.
1650 m4_define([AC_REQUIRE_AUX_FILE],
1651 [AS_LITERAL_IF([$1], [],
1652 [AC_FATAL([$0: requires a literal argument])])])
1656 ## ----------------------------------- ##
1657 ## Getting the canonical system type. ##
1658 ## ----------------------------------- ##
1661 # configure --host=HOST --target=TARGET --build=BUILD
1664 # 1. Build defaults to the current platform, as determined by config.guess.
1665 # 2. Host defaults to build.
1666 # 3. Target defaults to host.
1669 # _AC_CANONICAL_SPLIT(THING)
1670 # --------------------------
1671 # Generate the variables THING, THING_{alias cpu vendor os}.
1672 m4_define([_AC_CANONICAL_SPLIT],
1675 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1677 AC_SUBST([$1], [$ac_cv_$1])dnl
1678 ac_save_IFS=$IFS; IFS='-'
1681 AC_SUBST([$1_cpu], [$[1]])dnl
1682 AC_SUBST([$1_vendor], [$[2]])dnl
1684 [# Remember, the first character of IFS is used to create $]*,
1685 # except with old shells:
1688 case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
1689 AC_SUBST([$1_os])dnl
1690 ])# _AC_CANONICAL_SPLIT
1693 # AC_CANONICAL_BUILD
1694 # ------------------
1695 AC_DEFUN([AC_CANONICAL_BUILD],
1696 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1697 AC_REQUIRE_AUX_FILE([config.sub])dnl
1698 AC_REQUIRE_AUX_FILE([config.guess])dnl
1699 m4_divert_once([HELP_CANON],
1702 --build=BUILD configure for building on BUILD [guessed]]])dnl
1703 # Make sure we can run config.sub.
1704 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
1705 AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
1707 AC_CACHE_CHECK([build system type], [ac_cv_build],
1708 [ac_build_alias=$build_alias
1709 test "x$ac_build_alias" = x &&
1710 ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
1711 test "x$ac_build_alias" = x &&
1712 AC_MSG_ERROR([cannot guess build type; you must specify one])
1713 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
1714 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
1716 _AC_CANONICAL_SPLIT(build)
1717 ])# AC_CANONICAL_BUILD
1722 AC_DEFUN([AC_CANONICAL_HOST],
1723 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1724 m4_divert_once([HELP_CANON],
1725 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1726 AC_CACHE_CHECK([host system type], [ac_cv_host],
1727 [if test "x$host_alias" = x; then
1728 ac_cv_host=$ac_cv_build
1730 ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
1731 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
1734 _AC_CANONICAL_SPLIT([host])
1735 ])# AC_CANONICAL_HOST
1738 # AC_CANONICAL_TARGET
1739 # -------------------
1740 AC_DEFUN([AC_CANONICAL_TARGET],
1741 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1742 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1743 m4_divert_once([HELP_CANON],
1744 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1745 AC_CACHE_CHECK([target system type], [ac_cv_target],
1746 [if test "x$target_alias" = x; then
1747 ac_cv_target=$ac_cv_host
1749 ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
1750 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
1753 _AC_CANONICAL_SPLIT([target])
1755 # The aliases save the names the user supplied, while $host etc.
1756 # will get canonicalized.
1757 test -n "$target_alias" &&
1758 test "$program_prefix$program_suffix$program_transform_name" = \
1760 program_prefix=${target_alias}-[]dnl
1761 ])# AC_CANONICAL_TARGET
1764 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1767 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1768 # ------------------------------------------
1769 # If the cache file is inconsistent with the current host,
1770 # target and build system types, execute CMD or print a default
1771 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1772 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1775 ## ---------------------- ##
1776 ## Caching test results. ##
1777 ## ---------------------- ##
1782 # Look for site or system specific initialization scripts.
1783 m4_define([AC_SITE_LOAD],
1784 [# Prefer explicitly selected file to automatically selected ones.
1785 if test -n "$CONFIG_SITE"; then
1786 set x "$CONFIG_SITE"
1787 elif test "x$prefix" != xNONE; then
1788 set x "$prefix/share/config.site" "$prefix/etc/config.site"
1790 set x "$ac_default_prefix/share/config.site" \
1791 "$ac_default_prefix/etc/config.site"
1796 if test -r "$ac_site_file"; then
1797 AC_MSG_NOTICE([loading site script $ac_site_file])
1798 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1807 m4_define([AC_CACHE_LOAD],
1808 [if test -r "$cache_file"; then
1809 # Some versions of bash will fail to source /dev/null (special
1810 # files actually), so we avoid doing that.
1811 if test -f "$cache_file"; then
1812 AC_MSG_NOTICE([loading cache $cache_file])
1814 [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
1815 *) . "./$cache_file";;
1819 AC_MSG_NOTICE([creating cache $cache_file])
1827 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1828 m4_define([_AC_CACHE_DUMP],
1829 [# The following way of writing the cache mishandles newlines in values,
1830 # but we know of no workaround that is simple, portable, and efficient.
1831 # So, we kill variables containing newlines.
1832 # Ultrix sh set writes to stderr and can't be redirected directly,
1833 # and sets the high bit in the cache file unless we assign to the vars.
1835 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1836 eval ac_val=\$$ac_var
1840 *_cv_*) AC_MSG_WARN([Cache variable $ac_var contains a newline.]) ;;
1843 _ | IFS | as_nl) ;; #(
1844 *) $as_unset $ac_var ;;
1850 case $as_nl`(ac_space=' '; set) 2>&1` in #(
1851 *${as_nl}ac_space=\ *)
1852 # `set' does not quote correctly, so add quotes (double-quote
1853 # substitution turns \\\\ into \\, and sed turns \\ into \).
1856 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
1859 # `set' quotes correctly as required by POSIX, so do not add quotes.
1860 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
1871 # Allow a site initialization script to override cache values.
1872 m4_define([AC_CACHE_SAVE],
1873 [cat >confcache <<\_ACEOF
1874 # This file is a shell script that caches the results of configure
1875 # tests run on this system so they can be shared between configure
1876 # scripts and configure runs, see configure's option --config-cache.
1877 # It is not useful on other systems. If it contains results you don't
1878 # want to keep, you may remove or edit it.
1880 # config.status only pays attention to the cache file if you give it
1881 # the --recheck option to rerun configure.
1883 # `ac_cv_env_foo' variables (set or unset) will be overridden when
1884 # loading this file, other *unset* `ac_cv_foo' will be assigned the
1894 s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
1896 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
1898 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
1899 if test -w "$cache_file"; then
1900 test "x$cache_file" != "x/dev/null" &&
1901 AC_MSG_NOTICE([updating cache $cache_file])
1902 cat confcache >$cache_file
1904 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
1907 rm -f confcache[]dnl
1911 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
1912 # ------------------------------------------
1913 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
1914 # Should be dnl'ed. Try to catch common mistakes.
1915 m4_defun([AC_CACHE_VAL],
1916 [m4_bmatch([$2], [AC_DEFINE],
1917 [AC_DIAGNOSE([syntax],
1918 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
1919 [where no actions should be taken])])dnl
1921 [_AS_ECHO_N([(cached) ])],
1925 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
1926 # -------------------------------------------
1927 # Do not call this macro with a dnl right behind.
1928 m4_defun([AC_CACHE_CHECK],
1929 [AC_MSG_CHECKING([$1])
1930 AC_CACHE_VAL([$2], [$3])dnl
1932 [AC_MSG_RESULT([$$2])],
1933 [ac_res=AS_VAR_GET([$2])
1934 AC_MSG_RESULT([$ac_res])])dnl
1939 ## ---------------------- ##
1940 ## Defining CPP symbols. ##
1941 ## ---------------------- ##
1944 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
1945 # -------------------------------------------
1946 # Used by --trace to collect the list of AC_DEFINEd macros.
1947 m4_define([AC_DEFINE_TRACE_LITERAL],
1948 [m4_pattern_allow([^$1$])])
1951 # AC_DEFINE_TRACE(CPP-SYMBOL)
1952 # ---------------------------
1953 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
1954 # out non literal symbols.
1955 m4_define([AC_DEFINE_TRACE],
1956 [AS_LITERAL_IF([$1], [AC_DEFINE_TRACE_LITERAL([$1])])])
1959 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
1960 # -------------------------------------------
1961 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
1962 # and if VARIABLE is affected the same VALUE, do nothing, else
1963 # die. The third argument is used by autoheader.
1964 m4_define([AC_DEFINE], [_AC_DEFINE_Q([\], $@)])
1967 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
1968 # ----------------------------------------------------
1969 # Similar, but perform shell substitutions $ ` \ once on VALUE.
1970 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([], $@)])
1973 # _AC_DEFINE_Q(QUOTE, VARIABLE, [VALUE], [DESCRIPTION])
1974 # -----------------------------------------------------
1975 m4_define([_AC_DEFINE_Q],
1976 [AC_DEFINE_TRACE([$2])dnl
1977 m4_ifval([$4], [AH_TEMPLATE(m4_bpatsubst([[$2]], [(.*)]), [$4])])dnl
1978 cat >>confdefs.h <<$1_ACEOF
1979 [@%:@define] $2 m4_if($#, 2, 1, [$3])
1985 ## -------------------------- ##
1986 ## Setting output variables. ##
1987 ## -------------------------- ##
1990 # AC_SUBST_TRACE(VARIABLE)
1991 # ------------------------
1992 # This macro is used with --trace to collect the list of substituted variables.
1993 m4_define([AC_SUBST_TRACE])
1996 # AC_SUBST(VARIABLE, [VALUE])
1997 # ---------------------------
1998 # Create an output variable from a shell VARIABLE. If VALUE is given
1999 # assign it to VARIABLE. Use `""' is you want to set VARIABLE to an
2000 # empty value, not an empty second argument.
2002 m4_define([AC_SUBST],
2003 [AC_SUBST_TRACE([$1])dnl
2004 m4_pattern_allow([^$1$])dnl
2005 m4_ifvaln([$2], [$1=$2])[]dnl
2006 m4_append_uniq([_AC_SUBST_VARS], [$1], [
2011 # AC_SUBST_FILE(VARIABLE)
2012 # -----------------------
2013 # Read the comments of the preceding macro.
2014 m4_define([AC_SUBST_FILE],
2015 [m4_pattern_allow([^$1$])dnl
2016 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2021 ## --------------------------------------- ##
2022 ## Printing messages at autoconf runtime. ##
2023 ## --------------------------------------- ##
2025 # In fact, I think we should promote the use of m4_warn and m4_fatal
2026 # directly. This will also avoid to some people to get it wrong
2027 # between AC_FATAL and AC_MSG_ERROR.
2030 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2031 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2032 # --------------------------------
2033 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2034 m4_define([AC_FATAL], [m4_fatal($@)])
2037 # AC_WARNING(MESSAGE)
2038 # -------------------
2039 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2041 m4_define([AC_WARNING],
2042 [AC_DIAGNOSE([syntax], [$1])])
2047 ## ---------------------------------------- ##
2048 ## Printing messages at configure runtime. ##
2049 ## ---------------------------------------- ##
2052 # AC_MSG_CHECKING(FEATURE)
2053 # ------------------------
2054 m4_define([AC_MSG_CHECKING],
2055 [{ _AS_ECHO_LOG([checking $1])
2056 _AS_ECHO_N([checking $1... ]); }dnl
2060 # AC_MSG_RESULT(RESULT)
2061 # ---------------------
2062 m4_define([AC_MSG_RESULT],
2063 [{ _AS_ECHO_LOG([result: $1])
2064 _AS_ECHO([${ECHO_T}$1]); }dnl
2068 # AC_MSG_WARN(PROBLEM)
2069 # AC_MSG_NOTICE(STRING)
2070 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2071 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2072 # ----------------------------------------
2073 m4_copy([AS_WARN], [AC_MSG_WARN])
2074 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2075 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2076 m4_define([AC_MSG_FAILURE],
2078 See `config.log' for more details.], [$2])])
2081 # _AC_MSG_LOG_CONFTEST
2082 # --------------------
2083 m4_define([_AC_MSG_LOG_CONFTEST],
2084 [echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD
2085 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2089 # AU::AC_CHECKING(FEATURE)
2090 # ------------------------
2091 AU_DEFUN([AC_CHECKING],
2092 [AS_MESSAGE([checking $1...])])
2095 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2096 # ----------------------------------
2097 # No escaping, so it performed also backtick substitution.
2098 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2099 [_AS_ECHO_UNQUOTED([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
2100 _AS_ECHO_UNQUOTED([${ECHO_T}$1])[]dnl
2104 # AU::AC_VERBOSE(STRING)
2105 # ----------------------
2106 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2113 ## ---------------------------- ##
2114 ## Compiler-running mechanics. ##
2115 ## ---------------------------- ##
2118 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2119 # ----------------------------------
2120 # Eval COMMAND, save the exit status in ac_status, and log it.
2121 AC_DEFUN([_AC_RUN_LOG],
2122 [{ ($2) >&AS_MESSAGE_LOG_FD
2123 ($1) 2>&AS_MESSAGE_LOG_FD
2125 _AS_ECHO_LOG([\$? = $ac_status])
2126 (exit $ac_status); }])
2129 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2130 # -----------------------------------------
2131 # Run COMMAND, save its stderr into conftest.err, save the exit status
2132 # in ac_status, and log it. Don't forget to clean up conftest.err after
2134 # Note that when tracing, most shells will leave the traces in stderr
2135 # starting with "+": that's what this macro tries to address.
2136 AC_DEFUN([_AC_RUN_LOG_STDERR],
2137 [{ ($2) >&AS_MESSAGE_LOG_FD
2140 grep -v '^ *+' conftest.er1 >conftest.err
2142 cat conftest.err >&AS_MESSAGE_LOG_FD
2143 _AS_ECHO_LOG([\$? = $ac_status])
2144 (exit $ac_status); }])
2146 # _AC_DO_ECHO(COMMAND)
2147 # --------------------
2148 # Echo COMMAND. This is designed to be used just before evaluating COMMAND.
2149 AC_DEFUN([_AC_DO_ECHO],
2150 [m4_if([$1], [$ac_try], [], [ac_try="$1"
2152 dnl If the string contains '"', '`', or '\', then just echo it rather
2153 dnl than expanding it. This is a hack, but it is safer, while also
2154 dnl typically expanding simple substrings like '$CC', which is what we want.
2156 dnl The rest of this macro body is quoted, to work around misuses like
2157 dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
2158 dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
2159 dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
2160 dnl underquoting misuses, such as
2161 dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
2162 dnl We normally wouldn't bother with this kind of workaround for invalid code
2163 dnl but this change was put in just before Autoconf 2.60 and we wanted to
2164 dnl minimize the integration hassle.
2165 [case "(($ac_try" in
2166 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
2167 *) ac_try_echo=$ac_try;;
2169 eval "echo \"\$as_me:$LINENO: $ac_try_echo\""]])
2173 # Eval COMMAND, save the exit status in ac_status, and log it.
2174 # For internal use only.
2176 [_AC_RUN_LOG([eval "$1"],
2177 [_AC_DO_ECHO([$1])])])
2180 # _AC_DO_STDERR(COMMAND)
2181 # ----------------------
2182 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2183 AC_DEFUN([_AC_DO_STDERR],
2184 [_AC_RUN_LOG_STDERR([eval "$1"],
2185 [_AC_DO_ECHO([$1])])])
2188 # _AC_DO_VAR(VARIABLE)
2189 # --------------------
2190 # Evaluate "$VARIABLE", which should be a valid shell command.
2191 # The purpose of this macro is to write "configure:123: command line"
2192 # into config.log for every test run.
2193 AC_DEFUN([_AC_DO_VAR],
2197 # _AC_DO_TOKENS(COMMAND)
2198 # ----------------------
2199 # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
2200 # tokens of the shell command language.
2201 AC_DEFUN([_AC_DO_TOKENS],
2203 _AC_DO([$ac_try]); }])
2208 # Eval COMMAND, save the exit status in ac_status, and log it.
2209 # Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
2210 # It is present only for backward compatibility with previous Autoconf versions.
2211 AC_DEFUN([_AC_EVAL],
2212 [_AC_RUN_LOG([eval $1],
2213 [eval echo "$as_me:$LINENO: \"$1\""])])
2216 # _AC_EVAL_STDERR(COMMAND)
2217 # ------------------------
2218 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2219 # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
2220 # It is present only for backward compatibility with previous Autoconf versions.
2221 AC_DEFUN([_AC_EVAL_STDERR],
2222 [_AC_RUN_LOG_STDERR([eval $1],
2223 [eval echo "$as_me:$LINENO: \"$1\""])])
2226 # AC_TRY_EVAL(VARIABLE)
2227 # ---------------------
2228 # Evaluate $VARIABLE, which should be a valid shell command.
2229 # The purpose of this macro is to write "configure:123: command line"
2230 # into config.log for every test run.
2232 # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
2233 # undocumented, and should not be used.
2234 # They may be removed or their API changed in a future release.
2235 # Autoconf itself no longer uses these two macros; they are present
2236 # only for backward compatibility with previous versions of Autoconf.
2237 # Not every shell command will work due to problems with eval
2238 # and quoting, and the rules for exactly what does work are tricky.
2239 # Worse, due to double-expansion during evaluation, arbitrary unintended
2240 # shell commands could be executed in some situations.
2241 AC_DEFUN([AC_TRY_EVAL],
2245 # AC_TRY_COMMAND(COMMAND)
2246 # -----------------------
2247 # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
2248 # tokens of the shell command language.
2249 # This macro should not be used; see the comments under AC_TRY_EVAL for why.
2250 AC_DEFUN([AC_TRY_COMMAND],
2252 _AC_EVAL([$ac_try]); }])
2255 # AC_RUN_LOG(COMMAND)
2256 # -------------------
2257 AC_DEFUN([AC_RUN_LOG],
2259 [echo "$as_me:$LINENO: AS_ESCAPE([$1])"])])
2264 ## ------------------------ ##
2265 ## Examining declarations. ##
2266 ## ------------------------ ##
2270 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2271 # ----------------------------------------------------------------
2272 # Try to preprocess PROGRAM.
2274 # This macro can be used during the selection of a preprocessor.
2275 # Run cpp and set ac_cpp_err to "yes" for an error, to
2276 # "$ac_(c,cxx)_preproc_warn_flag" if there are warnings or to "" if
2277 # neither warnings nor errors have been detected. eval is necessary
2279 AC_DEFUN([_AC_PREPROC_IFELSE],
2280 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2281 if _AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null; then
2282 if test -s conftest.err; then
2283 ac_cpp_err=$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag
2284 ac_cpp_err=$ac_cpp_err$ac_[]_AC_LANG_ABBREV[]_werror_flag
2291 AS_IF([test -z "$ac_cpp_err"], [$2], [_AC_MSG_LOG_CONFTEST
2293 rm -f conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl
2294 ])# _AC_PREPROC_IFELSE
2297 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2298 # ---------------------------------------------------------------
2299 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2300 # current language was checked for, hence do not use this macro in macros
2301 # looking for a preprocessor.
2302 AC_DEFUN([AC_PREPROC_IFELSE],
2303 [AC_LANG_PREPROC_REQUIRE()dnl
2304 _AC_PREPROC_IFELSE($@)])
2307 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2308 # ---------------------------------------------------------
2309 # AC_TRY_CPP is used to check whether particular header files exist.
2310 # (But it actually tests whether INCLUDES produces no CPP errors.)
2312 # INCLUDES are not defaulted and are double quoted.
2313 AU_DEFUN([AC_TRY_CPP],
2314 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2317 # AC_EGREP_CPP(PATTERN, PROGRAM,
2318 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2319 # ------------------------------------------------------
2320 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2321 # come early, it is not included in AC_BEFORE checks.
2322 AC_DEFUN([AC_EGREP_CPP],
2323 [AC_LANG_PREPROC_REQUIRE()dnl
2324 AC_REQUIRE([AC_PROG_EGREP])dnl
2325 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2326 AS_IF([dnl eval is necessary to expand ac_cpp.
2327 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2328 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2329 dnl Quote $1 to prevent m4 from eating character classes
2330 $EGREP "[$1]" >/dev/null 2>&1],
2337 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2338 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2339 # ---------------------------------------------------------
2340 AC_DEFUN([AC_EGREP_HEADER],
2348 ## ------------------ ##
2349 ## Examining syntax. ##
2350 ## ------------------ ##
2353 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2354 # ----------------------------------------------------------------
2355 # Try to compile PROGRAM.
2356 # This macro can be used during the selection of a compiler.
2357 m4_define([_AC_COMPILE_IFELSE],
2358 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2359 rm -f conftest.$ac_objext
2360 AS_IF([_AC_DO_STDERR($ac_compile) &&
2361 _AC_DO_TOKENS([test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err]) &&
2362 _AC_DO_TOKENS([test -s conftest.$ac_objext])],
2364 [_AC_MSG_LOG_CONFTEST
2366 rm -f core conftest.err conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2367 ])# _AC_COMPILE_IFELSE
2370 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2371 # ---------------------------------------------------------------
2372 # Try to compile PROGRAM. Requires that the compiler for the current
2373 # language was checked for, hence do not use this macro in macros looking
2375 AC_DEFUN([AC_COMPILE_IFELSE],
2376 [AC_LANG_COMPILER_REQUIRE()dnl
2377 _AC_COMPILE_IFELSE($@)])
2380 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2381 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2382 # ---------------------------------------------------
2383 AU_DEFUN([AC_TRY_COMPILE],
2384 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2388 ## --------------------- ##
2389 ## Examining libraries. ##
2390 ## --------------------- ##
2393 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2394 # -------------------------------------------------------------
2395 # Try to link PROGRAM.
2396 # This macro can be used during the selection of a compiler.
2397 m4_define([_AC_LINK_IFELSE],
2398 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2399 rm -f conftest.$ac_objext conftest$ac_exeext
2400 AS_IF([_AC_DO_STDERR($ac_link) &&
2401 _AC_DO_TOKENS([test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err]) &&
2402 _AC_DO_TOKENS([test -s conftest$ac_exeext])],
2404 [_AC_MSG_LOG_CONFTEST
2406 rm -f core conftest.err conftest.$ac_objext \
2407 conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
2411 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2412 # ------------------------------------------------------------
2413 # Try to link PROGRAM. Requires that the compiler for the current
2414 # language was checked for, hence do not use this macro in macros looking
2416 AC_DEFUN([AC_LINK_IFELSE],
2417 [AC_LANG_COMPILER_REQUIRE()dnl
2418 _AC_LINK_IFELSE($@)])
2421 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2422 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2423 # ------------------------------------------------
2424 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2425 AU_DEFUN([AC_TRY_LINK],
2426 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2429 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2430 # ACTION-IF-TRUE, [ACTION-IF-FALSE])
2431 # ---------------------------------------------------
2432 AU_DEFUN([AC_COMPILE_CHECK],
2433 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2434 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2439 ## ------------------------------- ##
2440 ## Checking for runtime features. ##
2441 ## ------------------------------- ##
2444 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2445 # ------------------------------------------------------------
2446 # Compile, link, and run.
2447 # This macro can be used during the selection of a compiler.
2448 # We also remove conftest.o as if the compilation fails, some compilers
2449 # don't remove it. We remove gmon.out and bb.out, which may be
2450 # created during the run if the program is built with profiling support.
2451 m4_define([_AC_RUN_IFELSE],
2452 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
2453 rm -f conftest$ac_exeext
2454 AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
2456 [echo "$as_me: program exited with status $ac_status" >&AS_MESSAGE_LOG_FD
2457 _AC_MSG_LOG_CONFTEST
2459 [( exit $ac_status )
2461 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext m4_ifval([$1],
2462 [conftest.$ac_ext])[]dnl
2466 # AC_RUN_IFELSE(PROGRAM,
2467 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2468 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2469 # ----------------------------------------------------------
2470 # Compile, link, and run. Requires that the compiler for the current
2471 # language was checked for, hence do not use this macro in macros looking
2473 AC_DEFUN([AC_RUN_IFELSE],
2474 [AC_LANG_COMPILER_REQUIRE()dnl
2476 [AC_DIAGNOSE([cross],
2477 [$0 called without default to allow cross compiling])])dnl
2478 AS_IF([test "$cross_compiling" = yes],
2480 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2481 [_AC_RUN_IFELSE($@)])
2485 # AC_TRY_RUN(PROGRAM,
2486 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2487 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2488 # --------------------------------------------------------
2489 AU_DEFUN([AC_TRY_RUN],
2490 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2494 ## ------------------------------------- ##
2495 ## Checking for the existence of files. ##
2496 ## ------------------------------------- ##
2498 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2499 # -------------------------------------------------------------
2501 # Check for the existence of FILE.
2502 AC_DEFUN([AC_CHECK_FILE],
2503 [AC_DIAGNOSE([cross],
2504 [cannot check for file existence when cross compiling])dnl
2505 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2506 AC_CACHE_CHECK([for $1], ac_File,
2507 [test "$cross_compiling" = yes &&
2508 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2509 if test -r "$1"; then
2510 AS_VAR_SET(ac_File, yes)
2512 AS_VAR_SET(ac_File, no)
2514 AS_IF([test AS_VAR_GET(ac_File) = yes], [$2], [$3])[]dnl
2515 AS_VAR_POPDEF([ac_File])dnl
2519 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2520 # -----------------------------------------------------------------
2521 AC_DEFUN([AC_CHECK_FILES],
2522 [m4_foreach_w([AC_FILE_NAME], [$1],
2523 [AC_CHECK_FILE(AC_FILE_NAME,
2524 [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]AC_FILE_NAME), 1,
2525 [Define to 1 if you have the
2531 ## ------------------------------- ##
2532 ## Checking for declared symbols. ##
2533 ## ------------------------------- ##
2536 # AC_CHECK_DECL(SYMBOL,
2537 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2538 # [INCLUDES = DEFAULT-INCLUDES])
2539 # -------------------------------------------------------
2540 # Check if SYMBOL (a variable or a function) is declared.
2541 AC_DEFUN([AC_CHECK_DECL],
2542 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])dnl
2543 AC_CACHE_CHECK([whether $1 is declared], ac_Symbol,
2544 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
2546 char *p = (char *) $1;
2550 [AS_VAR_SET(ac_Symbol, yes)],
2551 [AS_VAR_SET(ac_Symbol, no)])])
2552 AS_IF([test AS_VAR_GET(ac_Symbol) = yes], [$2], [$3])[]dnl
2553 AS_VAR_POPDEF([ac_Symbol])dnl
2557 # AC_CHECK_DECLS(SYMBOLS,
2558 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2559 # [INCLUDES = DEFAULT-INCLUDES])
2560 # --------------------------------------------------------
2561 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2562 # documentation for a detailed explanation of this difference with
2563 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2564 AC_DEFUN([AC_CHECK_DECLS],
2565 [m4_foreach([AC_Symbol], [$1],
2566 [AC_CHECK_DECL(AC_Symbol,
2567 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 1,
2568 [Define to 1 if you have the declaration
2569 of `]AC_Symbol[', and to 0 if you don't.])
2571 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_DECL_]AC_Symbol), 0)
2577 # AC_CHECK_DECLS_ONCE(SYMBOLS)
2578 # ----------------------------
2579 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
2580 AC_DEFUN([AC_CHECK_DECLS_ONCE],
2582 m4_foreach([AC_Symbol], [$1],
2583 [AC_DEFUN([_AC_Check_Decl_]m4_defn([AC_Symbol]),
2584 [AC_CHECK_DECLS(m4_defn([AC_Symbol]))])
2585 AC_REQUIRE([_AC_Check_Decl_]m4_defn([AC_Symbol]))])
2590 ## ---------------------------------- ##
2591 ## Replacement of library functions. ##
2592 ## ---------------------------------- ##
2595 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
2596 # -----------------------------
2597 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
2598 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
2599 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
2602 # AC_LIBSOURCE(FILE-NAME)
2603 # -----------------------
2604 # Announce we might need the file `FILE-NAME'.
2605 m4_define([AC_LIBSOURCE], [])
2608 # AC_LIBSOURCES([FILE-NAME1, ...])
2609 # -------------------------------
2610 # Announce we might need these files.
2611 m4_define([AC_LIBSOURCES],
2612 [m4_foreach([_AC_FILE_NAME], [$1],
2613 [AC_LIBSOURCE(_AC_FILE_NAME)])])
2616 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
2617 # --------------------------------------------
2618 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2619 m4_define([_AC_LIBOBJ],
2620 [AS_LITERAL_IF([$1],
2621 [AC_LIBSOURCE([$1.c])],
2623 case " $LIB@&t@OBJS " in
2624 *" $1.$ac_objext "* ) ;;
2625 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
2630 # AC_LIBOBJ(FILE-NAME-NOEXT)
2631 # -------------------------
2632 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2633 m4_define([AC_LIBOBJ],
2635 [AC_DIAGNOSE(syntax,
2636 [$0($1): you should use literals])])dnl
2640 # _AC_LIBOBJS_NORMALIZE
2641 # ---------------------
2642 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
2643 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
2644 # Used with AC_CONFIG_COMMANDS_PRE.
2645 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
2648 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
2649 # 1. Remove the extension, and $U if already installed.
2650 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
2651 ac_i=`echo "$ac_i" | sed "$ac_script"`
2652 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
2653 # will be set to the directory where LIBOBJS objects are built.
2654 ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
2655 ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
2657 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
2658 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
2662 ## ----------------------------------- ##
2663 ## Checking compiler characteristics. ##
2664 ## ----------------------------------- ##
2667 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2668 # -------------------------------------------------------------------
2669 # Compute the integer EXPRESSION and store the result in the VARIABLE.
2670 # Works OK if cross compiling, but assumes twos-complement arithmetic.
2671 m4_define([_AC_COMPUTE_INT_COMPILE],
2672 [# Depending upon the size, compute the lo and hi bounds.
2673 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
2676 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2677 [ac_hi=$ac_mid; break],
2678 [ac_lo=`expr $ac_mid + 1`
2679 if test $ac_lo -le $ac_mid; then
2683 ac_mid=`expr 2 '*' $ac_mid + 1`])
2685 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
2688 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
2689 [ac_lo=$ac_mid; break],
2690 [ac_hi=`expr '(' $ac_mid ')' - 1`
2691 if test $ac_mid -le $ac_hi; then
2695 ac_mid=`expr 2 '*' $ac_mid`])
2698 # Binary search between lo and hi bounds.
2699 while test "x$ac_lo" != "x$ac_hi"; do
2700 ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
2701 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2702 [ac_hi=$ac_mid], [ac_lo=`expr '(' $ac_mid ')' + 1`])
2708 ])# _AC_COMPUTE_INT_COMPILE
2711 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
2712 # ---------------------------------------------------------------
2713 # Store the evaluation of the integer EXPRESSION in VARIABLE.
2714 m4_define([_AC_COMPUTE_INT_RUN],
2715 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
2716 [$2=`cat conftest.val`], [$4])])
2719 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, IF-FAILS)
2720 # ---------------------------------------------------------
2721 m4_define([_AC_COMPUTE_INT],
2722 [AC_LANG_COMPILER_REQUIRE()dnl
2723 if test "$cross_compiling" = yes; then
2724 _AC_COMPUTE_INT_COMPILE([$1], [$2], [$3], [$4])
2726 _AC_COMPUTE_INT_RUN([$1], [$2], [$3], [$4])
2728 rm -f conftest.val[]dnl