1 # This file is part of Autoconf. -*- Autoconf -*-
2 # Parameterized macros.
3 m4_define([_AC_COPYRIGHT_YEARS], [
4 Copyright (C) 1992-1996, 1998-2011 Free Software Foundation, Inc.
7 # This file is part of Autoconf. This program is free
8 # software; you can redistribute it and/or modify it under the
9 # terms of the GNU General Public License as published by the
10 # Free Software Foundation, either version 3 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # Under Section 7 of GPL version 3, you are granted additional
19 # permissions described in the Autoconf Configure Script Exception,
20 # version 3.0, as published by the Free Software Foundation.
22 # You should have received a copy of the GNU General Public License
23 # and a copy of the Autoconf Configure Script Exception along with
24 # this program; see the files COPYINGv3 and COPYING.EXCEPTION
25 # respectively. If not, see <http://www.gnu.org/licenses/>.
27 # Written by David MacKenzie, with help from
28 # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
29 # Roland McGrath, Noah Friedman, david d zuhn, and many others.
32 ## ---------------- ##
34 ## ---------------- ##
37 # We heavily use m4's diversions both for the initializations and for
38 # required macros (see AC_REQUIRE), because in both cases we have to
39 # issue high in `configure' something which is discovered late.
41 # KILL is only used to suppress output.
43 # The layers of `configure'. We let m4 undivert them by itself, when
44 # it reaches the end of `configure.ac'.
51 # Purpose of the script.
55 # Initialization of bottom layers.
58 # early initializations (defaults)
60 # initialization code, option handling loop.
63 # Handling `configure --help'.
65 # Help msg for AC_CANONICAL_*
67 # Help msg from AC_ARG_ENABLE.
69 # Help msg from AC_ARG_WITH.
71 # Help msg from AC_ARG_VAR.
73 # A small paragraph on the use of the variables.
75 # Tail of the handling of --help.
78 # Head of the handling of --version.
80 # FSF copyright notice for --version.
82 # User copyright notice for --version.
84 # Tail of the handling of --version.
90 # Tail of initialization code.
93 # the tests and output code
97 # _m4_divert(DIVERSION-NAME)
98 # --------------------------
99 # Convert a diversion name into its number. Otherwise, return
100 # DIVERSION-NAME which is supposed to be an actual diversion number.
101 # Of course it would be nicer to use m4_case here, instead of zillions
102 # of little macros, but it then takes twice longer to run `autoconf'!
112 # 3. HEADER-COPYRIGHT
115 m4_define([_m4_divert(DEFAULTS)], 10)
116 m4_define([_m4_divert(PARSE_ARGS)], 20)
118 m4_define([_m4_divert(HELP_BEGIN)], 100)
119 m4_define([_m4_divert(HELP_CANON)], 101)
120 m4_define([_m4_divert(HELP_ENABLE)], 102)
121 m4_define([_m4_divert(HELP_WITH)], 103)
122 m4_define([_m4_divert(HELP_VAR)], 104)
123 m4_define([_m4_divert(HELP_VAR_END)], 105)
124 m4_define([_m4_divert(HELP_END)], 106)
126 m4_define([_m4_divert(VERSION_BEGIN)], 200)
127 m4_define([_m4_divert(VERSION_FSF)], 201)
128 m4_define([_m4_divert(VERSION_USER)], 202)
129 m4_define([_m4_divert(VERSION_END)], 203)
131 m4_define([_m4_divert(SHELL_FN)], 250)
133 m4_define([_m4_divert(INIT_PREPARE)], 300)
137 # AC_DIVERT_PUSH(DIVERSION-NAME)
139 # ------------------------------
140 m4_copy([m4_divert_push],[AC_DIVERT_PUSH])
141 m4_copy([m4_divert_pop], [AC_DIVERT_POP])
145 ## ------------------------------------ ##
146 ## Defining/requiring Autoconf macros. ##
147 ## ------------------------------------ ##
150 # AC_DEFUN(NAME, EXPANSION)
151 # AC_DEFUN_ONCE(NAME, EXPANSION)
152 # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME)
154 # AC_PROVIDE(MACRO-NAME)
155 # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
156 # -----------------------------------------------------------
157 m4_copy([m4_defun], [AC_DEFUN])
158 m4_copy([m4_defun_once], [AC_DEFUN_ONCE])
159 m4_copy([m4_before], [AC_BEFORE])
160 m4_copy([m4_require], [AC_REQUIRE])
161 m4_copy([m4_provide], [AC_PROVIDE])
162 m4_copy([m4_provide_if], [AC_PROVIDE_IFELSE])
165 # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION])
166 # ------------------------------------------
167 m4_define([AC_OBSOLETE],
168 [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])])
172 ## ----------------------------- ##
173 ## Implementing shell functions. ##
174 ## ----------------------------- ##
177 # AC_REQUIRE_SHELL_FN(NAME-TO-CHECK, COMMENT, BODY, [DIVERSION = SHELL_FN]
178 # ------------------------------------------------------------------------
179 # Same as AS_REQUIRE_SHELL_FN except that the default diversion comes
180 # later in the script (speeding up configure --help and --version).
181 AC_DEFUN([AC_REQUIRE_SHELL_FN],
182 [AS_REQUIRE_SHELL_FN([$1], [$2], [$3], m4_default_quoted([$4], [SHELL_FN]))])
186 ## ----------------------------- ##
187 ## Implementing Autoconf loops. ##
188 ## ----------------------------- ##
191 # AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION)
192 # ------------------------------------------
193 AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]])
194 AC_DEFUN([AC_FOREACH], [m4_foreach_w($@)dnl
195 AC_DIAGNOSE([obsolete], [The macro `AC_FOREACH' is obsolete.
196 You should run autoupdate.])])
200 ## ----------------------------------- ##
201 ## Helping macros to display strings. ##
202 ## ----------------------------------- ##
205 # AU::AC_HELP_STRING(LHS, RHS, [COLUMN])
206 # --------------------------------------
207 AU_ALIAS([AC_HELP_STRING], [AS_HELP_STRING])
211 ## ---------------------------------------------- ##
212 ## Information on the package being Autoconf'ed. ##
213 ## ---------------------------------------------- ##
216 # It is suggested that the macros in this section appear before
217 # AC_INIT in `configure.ac'. Nevertheless, this is just stylistic,
218 # and from the implementation point of view, AC_INIT *must* be expanded
219 # beforehand: it puts data in diversions which must appear before the
220 # data provided by the macros of this section.
222 # The solution is to require AC_INIT in each of these macros. AC_INIT
223 # has the needed magic so that it can't be expanded twice.
225 # _AC_INIT_LITERAL(STRING)
226 # ------------------------
227 # Reject STRING if it contains newline, or if it cannot be used as-is
228 # in single-quoted strings, double-quoted strings, and quoted and
229 # unquoted here-docs.
230 m4_define([_AC_INIT_LITERAL],
231 [m4_if(m4_index(m4_translit([[$1]], [
232 ""], ['']), ['])AS_LITERAL_HEREDOC_IF([$1], [-]), [-1-], [],
233 [m4_warn([syntax], [AC_INIT: not a literal: $1])])])
235 # _AC_INIT_PACKAGE(PACKAGE-NAME, VERSION, BUG-REPORT, [TARNAME], [URL])
236 # ---------------------------------------------------------------------
237 m4_define([_AC_INIT_PACKAGE],
238 [_AC_INIT_LITERAL([$1])
239 _AC_INIT_LITERAL([$2])
240 _AC_INIT_LITERAL([$3])
241 m4_ifndef([AC_PACKAGE_NAME],
242 [m4_define([AC_PACKAGE_NAME], [$1])])
243 m4_ifndef([AC_PACKAGE_TARNAME],
244 [m4_define([AC_PACKAGE_TARNAME],
246 [m4_bpatsubst(m4_tolower(m4_bpatsubst([[$1]],
248 [[^_abcdefghijklmnopqrstuvwxyz0123456789]],
250 m4_ifndef([AC_PACKAGE_VERSION],
251 [m4_define([AC_PACKAGE_VERSION], [$2])])
252 m4_ifndef([AC_PACKAGE_STRING],
253 [m4_define([AC_PACKAGE_STRING], [$1 $2])])
254 m4_ifndef([AC_PACKAGE_BUGREPORT],
255 [m4_define([AC_PACKAGE_BUGREPORT], [$3])])
256 m4_ifndef([AC_PACKAGE_URL],
257 [m4_define([AC_PACKAGE_URL],
258 m4_if([$5], [], [m4_if(m4_index([$1], [GNU ]), [0],
259 [[http://www.gnu.org/software/]m4_defn([AC_PACKAGE_TARNAME])[/]])],
264 # AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER],
265 # [FILTER = m4_newline])
266 # ------------------------------------------------------
267 # Emit TEXT, a copyright notice, in the top of `configure' and in
268 # --version output. Macros in TEXT are evaluated once. Process
269 # the --version output through FILTER (m4_newline, m4_do, and
270 # m4_copyright_condense are common filters).
271 m4_define([AC_COPYRIGHT],
272 [AS_COPYRIGHT([$1])[]]dnl
273 [m4_divert_text(m4_default_quoted([$2], [VERSION_USER]),
274 [m4_default([$3], [m4_newline])([$1])])])# AC_COPYRIGHT
277 # AC_REVISION(REVISION-INFO)
278 # --------------------------
279 # The second quote in the translit is just to cope with font-lock-mode
280 # which sees the opening of a string.
281 m4_define([AC_REVISION],
282 [m4_divert_text([HEADER-REVISION],
283 [@%:@ From __file__ m4_translit([$1], [$""]).])dnl
289 ## ---------------------------------------- ##
290 ## Requirements over the Autoconf version. ##
291 ## ---------------------------------------- ##
294 # AU::AC_PREREQ(VERSION)
295 # ----------------------
296 # Update this `AC_PREREQ' statement to require the current version of
297 # Autoconf. But fail if ever this autoupdate is too old.
299 # Note that `m4_defn([m4_PACKAGE_VERSION])' below are expanded before
300 # calling `AU_DEFUN', i.e., it is hard coded. Otherwise it would be
301 # quite complex for autoupdate to import the value of
302 # `m4_PACKAGE_VERSION'. We could `AU_DEFUN' `m4_PACKAGE_VERSION', but
303 # this would replace all its occurrences with the current version of
304 # Autoconf, which is certainly not what the user intended.
305 AU_DEFUN([AC_PREREQ],
306 [m4_version_prereq([$1])[]dnl
307 [AC_PREREQ(]]m4_dquote(m4_dquote(m4_defn([m4_PACKAGE_VERSION])))[[)]])
312 # Complain and exit if the Autoconf version is less than VERSION.
313 m4_undefine([AC_PREREQ])
314 m4_copy([m4_version_prereq], [AC_PREREQ])
317 # AC_AUTOCONF_VERSION
318 # -------------------
319 # The current version of Autoconf parsing this file.
320 m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])
326 ## ---------------- ##
327 ## Initialization. ##
328 ## ---------------- ##
331 # All the following macros are used by AC_INIT. Ideally, they should
332 # be presented in the order in which they are output. Please, help us
333 # sorting it, or at least, don't augment the entropy.
338 # Provide useful headers; override the HEADER-COMMENT created by M4sh.
339 m4_define([_AC_INIT_NOTICE],
340 [m4_cleardivert([HEADER-COMMENT])]dnl
341 [m4_divert_text([HEADER-COMMENT],
342 [@%:@ Guess values for system-dependent variables and create Makefiles.
343 @%:@ Generated by m4_PACKAGE_STRING[]dnl
344 m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).])
346 m4_ifset([AC_PACKAGE_BUGREPORT],
347 [m4_divert_text([HEADER-COMMENT],
349 @%:@ Report bugs to <AC_PACKAGE_BUGREPORT>.])])
355 # We dump to VERSION_FSF to make sure we are inserted before the
356 # user copyrights, and after the setup of the --version handling.
357 m4_define([_AC_INIT_COPYRIGHT],
358 [AC_COPYRIGHT(m4_defn([_AC_COPYRIGHT_YEARS]), [VERSION_FSF], [
359 m4_copyright_condense])dnl
361 [This configure script is free software; the Free Software Foundation
362 gives unlimited permission to copy, distribute and modify it.],
363 [VERSION_FSF], [m4_echo])])
368 # Set up the file descriptors used by `configure'.
369 # File descriptor usage:
370 # 0 standard input (/dev/null)
372 # 2 errors and warnings
373 # AS_MESSAGE_LOG_FD compiler messages saved in config.log
374 # AS_MESSAGE_FD checking for... messages and results
375 # AS_ORIGINAL_STDIN_FD original standard input (still open)
377 # stdin is /dev/null because checks that run programs may
378 # inadvertently run interactive ones, which would stop configuration
379 # until someone typed an EOF.
380 m4_define([AS_MESSAGE_FD], 6)
381 m4_define([AS_ORIGINAL_STDIN_FD], 7)
382 # That's how they used to be named.
383 AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD])
384 AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
389 # Values which defaults can be set from `configure.ac'.
390 # `/bin/machine' is used in `glibcbug'. The others are used in config.*
391 m4_define([_AC_INIT_DEFAULTS],
392 [m4_divert_push([DEFAULTS])dnl
394 test -n "$DJDIR" || exec AS_ORIGINAL_STDIN_FD<&0 </dev/null
395 exec AS_MESSAGE_FD>&1
398 # hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
399 # so uname gets run too.
400 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
405 ac_default_prefix=/usr/local
407 ac_config_libobj_dir=.
414 AC_SUBST([PATH_SEPARATOR])dnl
416 # Identity of this package.
417 AC_SUBST([PACKAGE_NAME],
418 [m4_ifdef([AC_PACKAGE_NAME], ['AC_PACKAGE_NAME'])])dnl
419 AC_SUBST([PACKAGE_TARNAME],
420 [m4_ifdef([AC_PACKAGE_TARNAME], ['AC_PACKAGE_TARNAME'])])dnl
421 AC_SUBST([PACKAGE_VERSION],
422 [m4_ifdef([AC_PACKAGE_VERSION], ['AC_PACKAGE_VERSION'])])dnl
423 AC_SUBST([PACKAGE_STRING],
424 [m4_ifdef([AC_PACKAGE_STRING], ['AC_PACKAGE_STRING'])])dnl
425 AC_SUBST([PACKAGE_BUGREPORT],
426 [m4_ifdef([AC_PACKAGE_BUGREPORT], ['AC_PACKAGE_BUGREPORT'])])dnl
427 AC_SUBST([PACKAGE_URL],
428 [m4_ifdef([AC_PACKAGE_URL], ['AC_PACKAGE_URL'])])dnl
430 m4_divert_pop([DEFAULTS])dnl
431 m4_wrap_lifo([m4_divert_text([DEFAULTS],
432 [ac_subst_vars='m4_set_dump([_AC_SUBST_VARS], m4_newline)'
433 ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'
435 enable_option_checking
436 m4_ifdef([_AC_USER_OPTS], [m4_defn([_AC_USER_OPTS])
438 m4_ifdef([_AC_PRECIOUS_VARS],
439 [_AC_ARG_VAR_STORE[]dnl
440 _AC_ARG_VAR_VALIDATE[]dnl
441 ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
442 m4_ifdef([_AC_LIST_SUBDIRS],
443 [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
445 ])# _AC_INIT_DEFAULTS
448 # AC_PREFIX_DEFAULT(PREFIX)
449 # -------------------------
450 AC_DEFUN([AC_PREFIX_DEFAULT],
451 [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])])
454 # AC_PREFIX_PROGRAM(PROGRAM)
455 # --------------------------
456 # Guess the value for the `prefix' variable by looking for
457 # the argument program along PATH and taking its parent.
458 # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc,
459 # set `prefix' to /usr/local/gnu.
460 # This comes too late to find a site file based on the prefix,
461 # and it might use a cached value for the path.
462 # No big loss, I think, since most configures don't use this macro anyway.
463 AC_DEFUN([AC_PREFIX_PROGRAM],
464 [if test "x$prefix" = xNONE; then
465 dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle.
466 _AS_ECHO_N([checking for prefix by ])
467 AC_PATH_PROG(ac_prefix_program, [$1])
468 if test -n "$ac_prefix_program"; then
469 prefix=`AS_DIRNAME(["$ac_prefix_program"])`
470 prefix=`AS_DIRNAME(["$prefix"])`
473 ])# AC_PREFIX_PROGRAM
476 # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
477 # ---------------------------------------------
478 # UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
479 # relative to the directory that configure is in, which we can look
480 # for to find out if srcdir is correct.
481 AC_DEFUN([AC_CONFIG_SRCDIR],
482 [m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
487 # Set ac_pwd, and sanity-check it and the source and installation directories.
489 # (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
491 AC_DEFUN([_AC_INIT_DIRCHECK],
492 [m4_divert_push([PARSE_ARGS])dnl
494 ac_pwd=`pwd` && test -n "$ac_pwd" &&
495 ac_ls_di=`ls -di .` &&
496 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
497 AC_MSG_ERROR([working directory cannot be determined])
498 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
499 AC_MSG_ERROR([pwd does not report name of working directory])
501 m4_divert_pop([PARSE_ARGS])dnl
502 ])# _AC_INIT_DIRCHECK
506 # Compute `srcdir' based on `$ac_unique_file'.
508 # (We have to AC_DEFUN it, since we use AC_REQUIRE.)
510 AC_DEFUN([_AC_INIT_SRCDIR],
511 [AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
512 m4_divert_push([PARSE_ARGS])dnl
514 # Find the source files, if location was not specified.
515 if test -z "$srcdir"; then
516 ac_srcdir_defaulted=yes
517 # Try the directory containing this script, then the parent directory.
518 ac_confdir=`AS_DIRNAME(["$as_myself"])`
520 if test ! -r "$srcdir/$ac_unique_file"; then
524 ac_srcdir_defaulted=no
526 if test ! -r "$srcdir/$ac_unique_file"; then
527 test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
528 AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
530 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
532 cd "$srcdir" && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
534 # When building in place, set srcdir=.
535 if test "$ac_abs_confdir" = "$ac_pwd"; then
538 # Remove unnecessary trailing slashes from srcdir.
539 # Double slashes in file names in object file debugging info
540 # mess up M-x gdb in Emacs.
542 */) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
544 m4_divert_pop([PARSE_ARGS])dnl
548 # _AC_INIT_PARSE_ARGS
549 # -------------------
550 m4_define([_AC_INIT_PARSE_ARGS],
551 [m4_divert_push([PARSE_ARGS])dnl
553 # Initialize some variables set by options.
555 ac_init_version=false
556 ac_unrecognized_opts=
558 # The variables have the same names as the options, with
559 # dashes changed to underlines.
561 AC_SUBST(exec_prefix, NONE)dnl
564 AC_SUBST(prefix, NONE)dnl
567 AC_SUBST(program_transform_name, [s,x,x,])dnl
575 # Installation directory options.
576 # These are left unexpanded so users can "make install exec_prefix=/foo"
577 # and all the variables that are supposed to be based on exec_prefix
578 # by default will actually change.
579 # Use braces instead of parens because sh, perl, etc. also accept them.
580 # (The list follows the same order as the GNU Coding Standards.)
581 AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
582 AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
583 AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
584 AC_SUBST([datarootdir], ['${prefix}/share'])dnl
585 AC_SUBST([datadir], ['${datarootdir}'])dnl
586 AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
587 AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
588 AC_SUBST([localstatedir], ['${prefix}/var'])dnl
589 AC_SUBST([includedir], ['${prefix}/include'])dnl
590 AC_SUBST([oldincludedir], ['/usr/include'])dnl
591 AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
592 ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
593 ['${datarootdir}/doc/${PACKAGE}'])])dnl
594 AC_SUBST([infodir], ['${datarootdir}/info'])dnl
595 AC_SUBST([htmldir], ['${docdir}'])dnl
596 AC_SUBST([dvidir], ['${docdir}'])dnl
597 AC_SUBST([pdfdir], ['${docdir}'])dnl
598 AC_SUBST([psdir], ['${docdir}'])dnl
599 AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
600 AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
601 AC_SUBST([mandir], ['${datarootdir}/man'])dnl
607 # If the previous option needs an argument, assign it.
608 if test -n "$ac_prev"; then
609 eval $ac_prev=\$ac_option
615 *=?*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
620 # Accept the important Cygnus configure options, so we can diagnose typos.
622 case $ac_dashdash$ac_option in
626 -bindir | --bindir | --bindi | --bind | --bin | --bi)
628 -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
631 -build | --build | --buil | --bui | --bu)
632 ac_prev=build_alias ;;
633 -build=* | --build=* | --buil=* | --bui=* | --bu=*)
634 build_alias=$ac_optarg ;;
636 -cache-file | --cache-file | --cache-fil | --cache-fi \
637 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
638 ac_prev=cache_file ;;
639 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
640 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
641 cache_file=$ac_optarg ;;
644 cache_file=config.cache ;;
646 -datadir | --datadir | --datadi | --datad)
648 -datadir=* | --datadir=* | --datadi=* | --datad=*)
649 datadir=$ac_optarg ;;
651 -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
652 | --dataroo | --dataro | --datar)
653 ac_prev=datarootdir ;;
654 -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
655 | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
656 datarootdir=$ac_optarg ;;
658 _AC_INIT_PARSE_ENABLE([disable])
660 -docdir | --docdir | --docdi | --doc | --do)
662 -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
665 -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
667 -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
670 _AC_INIT_PARSE_ENABLE([enable])
672 -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
673 | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
674 | --exec | --exe | --ex)
675 ac_prev=exec_prefix ;;
676 -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
677 | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
678 | --exec=* | --exe=* | --ex=*)
679 exec_prefix=$ac_optarg ;;
681 -gas | --gas | --ga | --g)
682 # Obsolete; use --with-gas.
685 -help | --help | --hel | --he | -h)
687 -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
688 ac_init_help=recursive ;;
689 -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
690 ac_init_help=short ;;
692 -host | --host | --hos | --ho)
693 ac_prev=host_alias ;;
694 -host=* | --host=* | --hos=* | --ho=*)
695 host_alias=$ac_optarg ;;
697 -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
699 -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
701 htmldir=$ac_optarg ;;
703 -includedir | --includedir | --includedi | --included | --include \
704 | --includ | --inclu | --incl | --inc)
705 ac_prev=includedir ;;
706 -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
707 | --includ=* | --inclu=* | --incl=* | --inc=*)
708 includedir=$ac_optarg ;;
710 -infodir | --infodir | --infodi | --infod | --info | --inf)
712 -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
713 infodir=$ac_optarg ;;
715 -libdir | --libdir | --libdi | --libd)
717 -libdir=* | --libdir=* | --libdi=* | --libd=*)
720 -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
721 | --libexe | --libex | --libe)
722 ac_prev=libexecdir ;;
723 -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
724 | --libexe=* | --libex=* | --libe=*)
725 libexecdir=$ac_optarg ;;
727 -localedir | --localedir | --localedi | --localed | --locale)
729 -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
730 localedir=$ac_optarg ;;
732 -localstatedir | --localstatedir | --localstatedi | --localstated \
733 | --localstate | --localstat | --localsta | --localst | --locals)
734 ac_prev=localstatedir ;;
735 -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
736 | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
737 localstatedir=$ac_optarg ;;
739 -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
741 -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
745 # Obsolete; use --without-fp.
748 -no-create | --no-create | --no-creat | --no-crea | --no-cre \
749 | --no-cr | --no-c | -n)
752 -no-recursion | --no-recursion | --no-recursio | --no-recursi \
753 | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
756 -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
757 | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
758 | --oldin | --oldi | --old | --ol | --o)
759 ac_prev=oldincludedir ;;
760 -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
761 | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
762 | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
763 oldincludedir=$ac_optarg ;;
765 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
767 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
770 -program-prefix | --program-prefix | --program-prefi | --program-pref \
771 | --program-pre | --program-pr | --program-p)
772 ac_prev=program_prefix ;;
773 -program-prefix=* | --program-prefix=* | --program-prefi=* \
774 | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
775 program_prefix=$ac_optarg ;;
777 -program-suffix | --program-suffix | --program-suffi | --program-suff \
778 | --program-suf | --program-su | --program-s)
779 ac_prev=program_suffix ;;
780 -program-suffix=* | --program-suffix=* | --program-suffi=* \
781 | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
782 program_suffix=$ac_optarg ;;
784 -program-transform-name | --program-transform-name \
785 | --program-transform-nam | --program-transform-na \
786 | --program-transform-n | --program-transform- \
787 | --program-transform | --program-transfor \
788 | --program-transfo | --program-transf \
789 | --program-trans | --program-tran \
790 | --progr-tra | --program-tr | --program-t)
791 ac_prev=program_transform_name ;;
792 -program-transform-name=* | --program-transform-name=* \
793 | --program-transform-nam=* | --program-transform-na=* \
794 | --program-transform-n=* | --program-transform-=* \
795 | --program-transform=* | --program-transfor=* \
796 | --program-transfo=* | --program-transf=* \
797 | --program-trans=* | --program-tran=* \
798 | --progr-tra=* | --program-tr=* | --program-t=*)
799 program_transform_name=$ac_optarg ;;
801 -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
803 -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
806 -psdir | --psdir | --psdi | --psd | --ps)
808 -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
811 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
812 | -silent | --silent | --silen | --sile | --sil)
815 -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
817 -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
819 sbindir=$ac_optarg ;;
821 -sharedstatedir | --sharedstatedir | --sharedstatedi \
822 | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
823 | --sharedst | --shareds | --shared | --share | --shar \
825 ac_prev=sharedstatedir ;;
826 -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
827 | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
828 | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
830 sharedstatedir=$ac_optarg ;;
832 -site | --site | --sit)
834 -site=* | --site=* | --sit=*)
837 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
839 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
842 -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
843 | --syscon | --sysco | --sysc | --sys | --sy)
844 ac_prev=sysconfdir ;;
845 -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
846 | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
847 sysconfdir=$ac_optarg ;;
849 -target | --target | --targe | --targ | --tar | --ta | --t)
850 ac_prev=target_alias ;;
851 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
852 target_alias=$ac_optarg ;;
854 -v | -verbose | --verbose | --verbos | --verbo | --verb)
857 -version | --version | --versio | --versi | --vers | -V)
860 _AC_INIT_PARSE_ENABLE([with])
862 _AC_INIT_PARSE_ENABLE([without])
865 # Obsolete; use --with-x.
868 -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
869 | --x-incl | --x-inc | --x-in | --x-i)
870 ac_prev=x_includes ;;
871 -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
872 | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
873 x_includes=$ac_optarg ;;
875 -x-libraries | --x-libraries | --x-librarie | --x-librari \
876 | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
877 ac_prev=x_libraries ;;
878 -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
879 | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
880 x_libraries=$ac_optarg ;;
882 -*) AC_MSG_ERROR([unrecognized option: `$ac_option'
883 Try `$[0] --help' for more information])
887 ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
888 # Reject names that are not valid shell variable names.
889 case $ac_envvar in #(
890 '' | [[0-9]]* | *[[!_$as_cr_alnum]]* )
891 AC_MSG_ERROR([invalid variable name: `$ac_envvar']) ;;
893 eval $ac_envvar=\$ac_optarg
897 # FIXME: should be removed in autoconf 3.0.
898 AC_MSG_WARN([you should use --build, --host, --target])
899 expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
900 AC_MSG_WARN([invalid host type: $ac_option])
901 : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
907 if test -n "$ac_prev"; then
908 ac_option=--`echo $ac_prev | sed 's/_/-/g'`
909 AC_MSG_ERROR([missing argument to $ac_option])
912 if test -n "$ac_unrecognized_opts"; then
913 case $enable_option_checking in
915 fatal) AC_MSG_ERROR([unrecognized options: $ac_unrecognized_opts]) ;;
916 *) AC_MSG_WARN( [unrecognized options: $ac_unrecognized_opts]) ;;
920 # Check all directory arguments for consistency.
921 for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
922 datadir sysconfdir sharedstatedir localstatedir includedir \
923 oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
924 libdir localedir mandir
926 eval ac_val=\$$ac_var
927 # Remove trailing slashes.
930 ac_val=`expr "X$ac_val" : 'X\(.*[[^/]]\)' \| "X$ac_val" : 'X\(.*\)'`
931 eval $ac_var=\$ac_val;;
933 # Be sure to have absolute directory names.
935 [[\\/$]]* | ?:[[\\/]]* ) continue;;
936 NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
938 AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
941 # There might be people who depend on the old broken behavior: `$host'
942 # used to hold the argument of --host etc.
943 # FIXME: To remove some day.
948 # FIXME: To remove some day.
949 if test "x$host_alias" != x; then
950 if test "x$build_alias" = x; then
951 cross_compiling=maybe
952 AC_MSG_WARN([if you wanted to set the --build type, don't use --host.
953 If a cross compiler is detected then cross compile mode will be used])
954 elif test "x$build_alias" != "x$host_alias"; then
960 test -n "$host_alias" && ac_tool_prefix=$host_alias-
962 test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
964 m4_divert_pop([PARSE_ARGS])dnl
965 ])# _AC_INIT_PARSE_ARGS
968 # _AC_INIT_PARSE_ENABLE(OPTION-NAME)
969 # ----------------------------------
970 # A trivial front-end for _AC_INIT_PARSE_ENABLE2.
972 m4_define([_AC_INIT_PARSE_ENABLE],
973 [m4_bmatch([$1], [^with],
974 [_AC_INIT_PARSE_ENABLE2([$1], [with])],
975 [_AC_INIT_PARSE_ENABLE2([$1], [enable])])])
978 # _AC_INIT_PARSE_ENABLE2(OPTION-NAME, POSITIVE-NAME)
979 # --------------------------------------------------
980 # Handle an `--enable' or a `--with' option.
982 # OPTION-NAME is `enable', `disable', `with', or `without'.
983 # POSITIVE-NAME is the corresponding positive variant, i.e. `enable' or `with'.
985 # Positive variant of the option is recognized by the condition
986 # OPTION-NAME == POSITIVE-NAME .
988 m4_define([_AC_INIT_PARSE_ENABLE2],
990 ac_useropt=`expr "x$ac_option" : 'x-*$1-\(m4_if([$1], [$2], [[[^=]]], [.])*\)'`
991 # Reject names that are not valid shell variable names.
992 expr "x$ac_useropt" : "[.*[^-+._$as_cr_alnum]]" >/dev/null &&
994 [invalid ]m4_if([$2], [with], [package], [feature])[ name: $ac_useropt])
995 ac_useropt_orig=$ac_useropt
996 ac_useropt=`AS_ECHO(["$ac_useropt"]) | sed 's/[[-+.]]/_/g'`
997 case $ac_user_opts in
1001 *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--$1-$ac_useropt_orig"
1002 ac_unrecognized_sep=', ';;
1004 eval $2_$ac_useropt=m4_if([$1], [$2], [\$ac_optarg], [no]) ;;dnl
1010 # Handle the `configure --help' message.
1011 m4_define([_AC_INIT_HELP],
1012 [m4_divert_push([HELP_BEGIN])dnl
1015 # Report the --help message.
1017 if test "$ac_init_help" = "long"; then
1018 # Omit some internal or obsolete options to make the list less imposing.
1019 # This message is too long to be a string in the A/UX 3.1 sh.
1021 \`configure' configures m4_ifset([AC_PACKAGE_STRING],
1022 [AC_PACKAGE_STRING],
1023 [this package]) to adapt to many kinds of systems.
1025 Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
1027 [To assign environment variables (e.g., CC, CFLAGS...), specify them as
1028 VAR=VALUE. See below for descriptions of some of the useful variables.
1030 Defaults for the options are specified in brackets.
1033 -h, --help display this help and exit
1034 --help=short display options specific to this package
1035 --help=recursive display the short help of all the included packages
1036 -V, --version display version information and exit
1037 -q, --quiet, --silent do not print \`checking ...' messages
1038 --cache-file=FILE cache test results in FILE [disabled]
1039 -C, --config-cache alias for \`--cache-file=config.cache'
1040 -n, --no-create do not create output files
1041 --srcdir=DIR find the sources in DIR [configure dir or \`..']
1043 Installation directories:
1044 ]AS_HELP_STRING([--prefix=PREFIX],
1045 [install architecture-independent files in PREFIX [$ac_default_prefix]])
1046 AS_HELP_STRING([--exec-prefix=EPREFIX],
1047 [install architecture-dependent files in EPREFIX [PREFIX]])[
1049 By default, \`make install' will install all the files in
1050 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
1051 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
1052 for instance \`--prefix=\$HOME'.
1054 For better control, use the options below.
1056 Fine tuning of the installation directories:
1057 --bindir=DIR user executables [EPREFIX/bin]
1058 --sbindir=DIR system admin executables [EPREFIX/sbin]
1059 --libexecdir=DIR program executables [EPREFIX/libexec]
1060 --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
1061 --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
1062 --localstatedir=DIR modifiable single-machine data [PREFIX/var]
1063 --libdir=DIR object code libraries [EPREFIX/lib]
1064 --includedir=DIR C header files [PREFIX/include]
1065 --oldincludedir=DIR C header files for non-gcc [/usr/include]
1066 --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
1067 --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
1068 --infodir=DIR info documentation [DATAROOTDIR/info]
1069 --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
1070 --mandir=DIR man documentation [DATAROOTDIR/man]
1071 ]AS_HELP_STRING([--docdir=DIR],
1072 [documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME],
1073 [AC_PACKAGE_TARNAME], [PACKAGE])@:>@)[
1074 --htmldir=DIR html documentation [DOCDIR]
1075 --dvidir=DIR dvi documentation [DOCDIR]
1076 --pdfdir=DIR pdf documentation [DOCDIR]
1077 --psdir=DIR ps documentation [DOCDIR]
1081 m4_divert_pop([HELP_BEGIN])dnl
1082 dnl The order of the diversions here is
1084 dnl which may be extended by extra generic options such as with X or
1085 dnl AC_ARG_PROGRAM. Displayed only in long --help.
1088 dnl Support for cross compilation (--build, --host and --target).
1089 dnl Display only in long --help.
1092 dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
1093 dnl then implements the header of the non generic options.
1102 dnl initialized below, in which we dump the trailer (handling of the
1103 dnl recursion for instance).
1104 m4_divert_push([HELP_ENABLE])dnl
1108 if test -n "$ac_init_help"; then
1109 m4_ifset([AC_PACKAGE_STRING],
1110 [ case $ac_init_help in
1111 short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
1114 m4_divert_pop([HELP_ENABLE])dnl
1115 m4_divert_push([HELP_END])dnl
1117 Report bugs to m4_ifset([AC_PACKAGE_BUGREPORT], [<AC_PACKAGE_BUGREPORT>],
1118 [the package provider]).dnl
1119 m4_ifdef([AC_PACKAGE_NAME], [m4_ifset([AC_PACKAGE_URL], [
1120 AC_PACKAGE_NAME home page: <AC_PACKAGE_URL>.])dnl
1121 m4_if(m4_index(m4_defn([AC_PACKAGE_NAME]), [GNU ]), [0], [
1122 General help using GNU software: <http://www.gnu.org/gethelp/>.])])
1127 if test "$ac_init_help" = "recursive"; then
1128 # If there are subdirs, report their specific --help.
1129 for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
1130 test -d "$ac_dir" ||
1131 { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
1133 _AC_SRCDIRS(["$ac_dir"])
1134 cd "$ac_dir" || { ac_status=$?; continue; }
1135 # Check for guested configure.
1136 if test -f "$ac_srcdir/configure.gnu"; then
1138 $SHELL "$ac_srcdir/configure.gnu" --help=recursive
1139 elif test -f "$ac_srcdir/configure"; then
1141 $SHELL "$ac_srcdir/configure" --help=recursive
1143 AC_MSG_WARN([no configuration information is in $ac_dir])
1145 cd "$ac_pwd" || { ac_status=$?; break; }
1149 test -n "$ac_init_help" && exit $ac_status
1150 m4_divert_pop([HELP_END])dnl
1156 # Handle the `configure --version' message.
1157 m4_define([_AC_INIT_VERSION],
1158 [m4_divert_text([VERSION_BEGIN],
1159 [if $ac_init_version; then
1161 m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
1162 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
1163 generated by m4_PACKAGE_STRING])
1164 m4_divert_text([VERSION_END],
1168 ])# _AC_INIT_VERSION
1171 # _AC_INIT_CONFIG_LOG
1172 # -------------------
1173 # Initialize the config.log file descriptor and write header to it.
1174 m4_define([_AC_INIT_CONFIG_LOG],
1175 [m4_divert_text([INIT_PREPARE],
1176 [m4_define([AS_MESSAGE_LOG_FD], 5)dnl
1177 cat >config.log <<_ACEOF
1178 This file contains any messages produced by compilers while
1179 running configure, to aid debugging if configure makes a mistake.
1181 It was created by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
1182 $as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
1183 generated by m4_PACKAGE_STRING. Invocation command line was
1188 exec AS_MESSAGE_LOG_FD>>config.log
1189 AS_UNAME >&AS_MESSAGE_LOG_FD
1191 cat >&AS_MESSAGE_LOG_FD <<_ACEOF
1194 m4_text_box([Core tests.])
1197 ])])# _AC_INIT_CONFIG_LOG
1202 # Called by AC_INIT to build the preamble of the `configure' scripts.
1203 # 1. Trap and clean up various tmp files.
1204 # 2. Set up the fd and output files
1205 # 3. Remember the options given to `configure' for `config.status --recheck'.
1206 # 4. Initiates confdefs.h
1207 # 5. Loads site and cache files
1208 m4_define([_AC_INIT_PREPARE],
1209 [m4_divert_push([INIT_PREPARE])dnl
1211 # Keep a trace of the command line.
1212 # Strip out --no-create and --no-recursion so they do not pile up.
1213 # Strip out --silent because we don't want to record it for future runs.
1214 # Also quote any args containing shell meta-characters.
1215 # Make two passes to allow for proper duplicate-argument suppression.
1219 ac_must_keep_next=false
1225 -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
1226 -q | -quiet | --quiet | --quie | --qui | --qu | --q \
1227 | -silent | --silent | --silen | --sile | --sil)
1230 ac_arg=`AS_ECHO(["$ac_arg"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1233 1) AS_VAR_APPEND([ac_configure_args0], [" '$ac_arg'"]) ;;
1235 AS_VAR_APPEND([ac_configure_args1], [" '$ac_arg'"])
1236 dnl If trying to remove duplicates, be sure to (i) keep the *last*
1237 dnl value (e.g. --prefix=1 --prefix=2 --prefix=1 might keep 2 only),
1238 dnl and (ii) not to strip long options (--prefix foo --prefix bar might
1239 dnl give --prefix foo bar).
1240 if test $ac_must_keep_next = true; then
1241 ac_must_keep_next=false # Got value, back to normal.
1244 dnl Use broad patterns, as arguments that would have already made configure
1245 dnl exit don't matter.
1246 *=* | --config-cache | -C | -disable-* | --disable-* \
1247 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
1248 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
1249 | -with-* | --with-* | -without-* | --without-* | --x)
1250 case "$ac_configure_args0 " in
1251 "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
1254 -* ) ac_must_keep_next=true ;;
1257 AS_VAR_APPEND([ac_configure_args], [" '$ac_arg'"])
1262 AS_UNSET(ac_configure_args0)
1263 AS_UNSET(ac_configure_args1)
1265 # When interrupted or exit'd, cleanup temporary files, and complete
1266 # config.log. We remove comments because anyway the quotes in there
1267 # would cause problems or look ugly.
1268 # WARNING: Use '\'' to represent an apostrophe within the trap.
1269 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
1270 trap 'exit_status=$?
1271 # Save into config.log some information that might help in debugging.
1275 AS_BOX([Cache variables.])
1277 m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
1283 AS_BOX([Output variables.])
1285 for ac_var in $ac_subst_vars
1287 eval ac_val=\$$ac_var
1289 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1291 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1295 if test -n "$ac_subst_files"; then
1296 AS_BOX([File substitutions.])
1298 for ac_var in $ac_subst_files
1300 eval ac_val=\$$ac_var
1302 *\'\''*) ac_val=`AS_ECHO(["$ac_val"]) | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
1304 AS_ECHO(["$ac_var='\''$ac_val'\''"])
1309 if test -s confdefs.h; then
1310 AS_BOX([confdefs.h.])
1315 test "$ac_signal" != 0 &&
1316 AS_ECHO(["$as_me: caught signal $ac_signal"])
1317 AS_ECHO(["$as_me: exit $exit_status"])
1318 } >&AS_MESSAGE_LOG_FD
1319 rm -f core *.core core.conftest.* &&
1320 rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
1323 for ac_signal in 1 2 13 15; do
1324 trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
1328 # confdefs.h avoids OS command line length limits that DEFS can exceed.
1329 rm -f -r conftest* confdefs.h
1331 dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
1332 dnl containing less than 14 bytes (including the newline).
1333 AS_ECHO(["/* confdefs.h */"]) > confdefs.h
1335 # Predefined preprocessor variables.
1336 AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
1337 [Define to the full name of this package.])dnl
1338 AC_DEFINE_UNQUOTED([PACKAGE_TARNAME], ["$PACKAGE_TARNAME"],
1339 [Define to the one symbol short name of this package.])dnl
1340 AC_DEFINE_UNQUOTED([PACKAGE_VERSION], ["$PACKAGE_VERSION"],
1341 [Define to the version of this package.])dnl
1342 AC_DEFINE_UNQUOTED([PACKAGE_STRING], ["$PACKAGE_STRING"],
1343 [Define to the full name and version of this package.])dnl
1344 AC_DEFINE_UNQUOTED([PACKAGE_BUGREPORT], ["$PACKAGE_BUGREPORT"],
1345 [Define to the address where bug reports for this package
1346 should be sent.])dnl
1347 AC_DEFINE_UNQUOTED([PACKAGE_URL], ["$PACKAGE_URL"],
1348 [Define to the home page for this package.])
1350 # Let the site file select an alternate cache file if it wants to.
1353 m4_divert_pop([INIT_PREPARE])dnl
1354 ])# _AC_INIT_PREPARE
1357 # AU::AC_INIT([UNIQUE-FILE-IN-SOURCE-DIR])
1358 # ----------------------------------------
1359 # This macro is used only for Autoupdate.
1361 [m4_ifval([$2], [[AC_INIT($@)]],
1364 AC_CONFIG_SRCDIR([$1])], [[AC_INIT]])])[]dnl
1368 # AC_INIT([PACKAGE, VERSION, [BUG-REPORT], [TARNAME], [URL])
1369 # ----------------------------------------------------------
1370 # Include the user macro files, prepare the diversions, and output the
1371 # preamble of the `configure' script.
1373 # If BUG-REPORT is omitted, do without (unless the user previously
1374 # defined the m4 macro AC_PACKAGE_BUGREPORT). If TARNAME is omitted,
1375 # use PACKAGE to seed it. If URL is omitted, use
1376 # `http://www.gnu.org/software/TARNAME/' if PACKAGE begins with `GNU',
1377 # otherwise, do without.
1379 # Note that the order is important: first initialize, then set the
1381 m4_define([AC_INIT],
1382 [# Forbidden tokens and exceptions.
1383 m4_pattern_forbid([^_?A[CHUM]_])
1384 m4_pattern_forbid([_AC_])
1385 m4_pattern_forbid([^LIBOBJS$],
1386 [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
1387 # Actually reserved by M4sh.
1388 m4_pattern_allow([^AS_FLAGS$])
1391 m4_divert_push([KILL])
1392 m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
1403 m4_divert_text([SHELL_FN], [
1404 m4_text_box([Autoconf initialization.])])
1406 m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
1408 dnl Substitute for predefined variables.
1410 AC_SUBST([ECHO_C])dnl
1411 AC_SUBST([ECHO_N])dnl
1412 AC_SUBST([ECHO_T])dnl
1414 _AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
1415 _AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
1416 _AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
1424 ## ------------------------------------------------------------- ##
1425 ## Selecting optional features, working with optional software. ##
1426 ## ------------------------------------------------------------- ##
1428 # AC_PRESERVE_HELP_ORDER
1429 # ----------------------
1430 # Emit help strings in the order given, rather than grouping all --enable-FOO
1431 # and all --with-BAR.
1432 AC_DEFUN([AC_PRESERVE_HELP_ORDER],
1433 [m4_divert_once([HELP_ENABLE], [[
1434 Optional Features and Packages:
1435 --disable-option-checking ignore unrecognized --enable/--with options
1436 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1437 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
1438 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1439 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
1440 m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
1441 ])# AC_PRESERVE_HELP_ORDER
1443 # _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1444 # -------------------------------------------------------------------
1445 # Common code for AC_ARG_ENABLE and AC_ARG_WITH.
1446 # OPTION is either "enable" or "with".
1448 m4_define([_AC_ENABLE_IF],
1449 [@%:@ Check whether --$1-$2 was given.
1450 _AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-+.], [___]), [$3], [$4])
1453 m4_define([_AC_ENABLE_IF_ACTION],
1454 [m4_append_uniq([_AC_USER_OPTS], [$1_$2], [
1456 AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
1459 # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1460 # ------------------------------------------------------------------------
1461 AC_DEFUN([AC_ARG_ENABLE],
1462 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1464 [m4_divert_once([HELP_ENABLE], [[
1466 --disable-option-checking ignore unrecognized --enable/--with options
1467 --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
1468 --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
1469 m4_divert_once([HELP_ENABLE], [$2])dnl
1470 _AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
1474 AU_DEFUN([AC_ENABLE],
1475 [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
1478 # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
1479 # --------------------------------------------------------------------
1480 AC_DEFUN([AC_ARG_WITH],
1481 [AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
1483 [m4_divert_once([HELP_WITH], [[
1485 --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
1486 --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
1487 m4_divert_once([HELP_WITH], [$2])dnl
1488 _AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
1492 [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])])
1494 # AC_DISABLE_OPTION_CHECKING
1495 # --------------------------
1496 AC_DEFUN([AC_DISABLE_OPTION_CHECKING],
1497 [m4_divert_once([DEFAULTS], [enable_option_checking=no])
1498 ])# AC_DISABLE_OPTION_CHECKING
1501 ## ----------------------------------------- ##
1502 ## Remembering variables for reconfiguring. ##
1503 ## ----------------------------------------- ##
1506 # AC_ARG_VAR(VARNAME, DOCUMENTATION)
1507 # ----------------------------------
1508 # Register VARNAME as a precious variable, and document it in
1509 # `configure --help' (but only once).
1510 AC_DEFUN([AC_ARG_VAR],
1511 [m4_divert_once([HELP_VAR], [[
1512 Some influential environment variables:]])dnl
1513 m4_divert_once([HELP_VAR_END], [[
1514 Use these variables to override the choices made by `configure' or to help
1515 it to find libraries and programs with nonstandard names/locations.]])dnl
1516 m4_expand_once([m4_divert_text([HELP_VAR],
1517 [AS_HELP_STRING([$1], [$2], [ ])])],
1520 _AC_ARG_VAR_PRECIOUS([$1])dnl
1524 # _AC_ARG_VAR_PRECIOUS(VARNAME)
1525 # -----------------------------
1526 # Declare VARNAME is precious.
1527 m4_define([_AC_ARG_VAR_PRECIOUS],
1528 [m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
1535 # We try to diagnose when precious variables have changed. To do this,
1536 # make two early snapshots (after the option processing to take
1537 # explicit variables into account) of those variables: one (ac_env_)
1538 # which represents the current run, and a second (ac_cv_env_) which,
1539 # at the first run, will be saved in the cache. As an exception to
1540 # the cache mechanism, its loading will override these variables (non
1541 # `ac_cv_env_' cache value are only set when unset).
1543 # In subsequent runs, after having loaded the cache, compare
1544 # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
1545 m4_define([_AC_ARG_VAR_STORE],
1546 [m4_divert_text([PARSE_ARGS],
1547 [for ac_var in $ac_precious_vars; do
1548 eval ac_env_${ac_var}_set=\${${ac_var}+set}
1549 eval ac_env_${ac_var}_value=\$${ac_var}
1550 eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
1551 eval ac_cv_env_${ac_var}_value=\$${ac_var}
1556 # _AC_ARG_VAR_VALIDATE
1557 # --------------------
1558 # The precious variables are saved twice at the beginning of
1559 # configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
1560 # `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
1561 # and `ac_cv_env_PRECIOUS_value' on the other hand.
1563 # Now the cache has just been loaded, so `ac_cv_env_' represents the
1564 # content of the cached values, while `ac_env_' represents that of the
1567 # So we check that `ac_env_' and `ac_cv_env_' are consistent. If
1569 m4_define([_AC_ARG_VAR_VALIDATE],
1570 [m4_divert_text([INIT_PREPARE],
1571 [# Check that the precious variables saved in the cache have kept the same
1573 ac_cache_corrupted=false
1574 for ac_var in $ac_precious_vars; do
1575 eval ac_old_set=\$ac_cv_env_${ac_var}_set
1576 eval ac_new_set=\$ac_env_${ac_var}_set
1577 eval ac_old_val=\$ac_cv_env_${ac_var}_value
1578 eval ac_new_val=\$ac_env_${ac_var}_value
1579 case $ac_old_set,$ac_new_set in
1581 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
1582 ac_cache_corrupted=: ;;
1584 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
1585 ac_cache_corrupted=: ;;
1588 if test "x$ac_old_val" != "x$ac_new_val"; then
1589 # differences in whitespace do not lead to failure.
1590 ac_old_val_w=`echo x $ac_old_val`
1591 ac_new_val_w=`echo x $ac_new_val`
1592 if test "$ac_old_val_w" != "$ac_new_val_w"; then
1593 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
1594 ac_cache_corrupted=:
1596 AS_MESSAGE([warning: ignoring whitespace changes in `$ac_var' since the previous run:], 2)
1597 eval $ac_var=\$ac_old_val
1599 AS_MESSAGE([ former value: `$ac_old_val'], 2)
1600 AS_MESSAGE([ current value: `$ac_new_val'], 2)
1603 # Pass precious variables to config.status.
1604 if test "$ac_new_set" = set; then
1606 *\'*) ac_arg=$ac_var=`AS_ECHO(["$ac_new_val"]) | sed "s/'/'\\\\\\\\''/g"` ;;
1607 *) ac_arg=$ac_var=$ac_new_val ;;
1609 case " $ac_configure_args " in
1610 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
1611 *) AS_VAR_APPEND([ac_configure_args], [" '$ac_arg'"]) ;;
1615 if $ac_cache_corrupted; then
1616 AS_MESSAGE([error: in `$ac_pwd':], 2)
1617 AS_MESSAGE([error: changes in the environment can compromise the build], 2)
1618 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
1620 ])# _AC_ARG_VAR_VALIDATE
1626 ## ---------------------------- ##
1627 ## Transforming program names. ##
1628 ## ---------------------------- ##
1633 # This macro is expanded only once, to avoid that `foo' ends up being
1634 # installed as `ggfoo'.
1635 AC_DEFUN_ONCE([AC_ARG_PROGRAM],
1636 [dnl Document the options.
1637 m4_divert_push([HELP_BEGIN])dnl
1640 --program-prefix=PREFIX prepend PREFIX to installed program names
1641 --program-suffix=SUFFIX append SUFFIX to installed program names
1642 --program-transform-name=PROGRAM run sed PROGRAM on installed program names
1643 m4_divert_pop([HELP_BEGIN])dnl
1644 test "$program_prefix" != NONE &&
1645 program_transform_name="s&^&$program_prefix&;$program_transform_name"
1646 # Use a double $ so make ignores it.
1647 test "$program_suffix" != NONE &&
1648 program_transform_name="s&\$&$program_suffix&;$program_transform_name"
1649 # Double any \ or $.
1650 # By default was `s,x,x', remove it if useless.
1651 [ac_script='s/[\\$]/&&/g;s/;s,x,x,$//']
1652 program_transform_name=`AS_ECHO(["$program_transform_name"]) | sed "$ac_script"`
1659 ## ------------------------- ##
1660 ## Finding auxiliary files. ##
1661 ## ------------------------- ##
1664 # AC_CONFIG_AUX_DIR(DIR)
1665 # ----------------------
1666 # Find install-sh, config.sub, config.guess, and Cygnus configure
1667 # in directory DIR. These are auxiliary files used in configuration.
1668 # DIR can be either absolute or relative to $srcdir.
1669 AC_DEFUN([AC_CONFIG_AUX_DIR],
1670 [AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
1673 # AC_CONFIG_AUX_DIR_DEFAULT
1674 # -------------------------
1675 # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
1676 # There's no need to call this macro explicitly; just AC_REQUIRE it.
1677 AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
1678 [AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
1681 # AC_CONFIG_AUX_DIRS(DIR ...)
1682 # ---------------------------
1683 # Internal subroutine.
1684 # Search for the configuration auxiliary files in directory list $1.
1685 # We look only for install-sh, so users of AC_PROG_INSTALL
1686 # do not automatically need to distribute the other auxiliary files.
1687 AC_DEFUN([AC_CONFIG_AUX_DIRS],
1689 for ac_dir in $1; do
1690 if test -f "$ac_dir/install-sh"; then
1692 ac_install_sh="$ac_aux_dir/install-sh -c"
1694 elif test -f "$ac_dir/install.sh"; then
1696 ac_install_sh="$ac_aux_dir/install.sh -c"
1698 elif test -f "$ac_dir/shtool"; then
1700 ac_install_sh="$ac_aux_dir/shtool install -c"
1704 if test -z "$ac_aux_dir"; then
1705 AC_MSG_ERROR([cannot find install-sh, install.sh, or shtool in $1])
1708 # These three variables are undocumented and unsupported,
1709 # and are intended to be withdrawn in a future Autoconf release.
1710 # They can cause serious problems if a builder's source tree is in a directory
1711 # whose full name contains unusual characters.
1712 ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
1713 ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
1714 ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
1716 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1717 ])# AC_CONFIG_AUX_DIRS
1722 ## ------------------------ ##
1723 ## Finding aclocal macros. ##
1724 ## ------------------------ ##
1727 # AC_CONFIG_MACRO_DIR(DIR)
1728 # ------------------------
1729 # Declare directory containing additional macros for aclocal.
1730 AC_DEFUN([AC_CONFIG_MACRO_DIR], [])
1734 ## --------------------- ##
1735 ## Requiring aux files. ##
1736 ## --------------------- ##
1738 # AC_REQUIRE_AUX_FILE(FILE)
1739 # -------------------------
1740 # This macro does nothing, it's a hook to be read with `autoconf --trace'.
1741 # It announces FILE is required in the auxdir.
1742 m4_define([AC_REQUIRE_AUX_FILE],
1743 [AS_LITERAL_WORD_IF([$1], [],
1744 [m4_fatal([$0: requires a literal argument])])])
1748 ## ----------------------------------- ##
1749 ## Getting the canonical system type. ##
1750 ## ----------------------------------- ##
1753 # configure --host=HOST --target=TARGET --build=BUILD
1756 # 1. Build defaults to the current platform, as determined by config.guess.
1757 # 2. Host defaults to build.
1758 # 3. Target defaults to host.
1761 # _AC_CANONICAL_SPLIT(THING)
1762 # --------------------------
1763 # Generate the variables THING, THING_{alias cpu vendor os}.
1764 m4_define([_AC_CANONICAL_SPLIT],
1767 *) AC_MSG_ERROR([invalid value of canonical $1]);;
1769 AC_SUBST([$1], [$ac_cv_$1])dnl
1770 ac_save_IFS=$IFS; IFS='-'
1773 AC_SUBST([$1_cpu], [$[1]])dnl
1774 AC_SUBST([$1_vendor], [$[2]])dnl
1776 [# Remember, the first character of IFS is used to create $]*,
1777 # except with old shells:
1780 case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
1781 AC_SUBST([$1_os])dnl
1782 ])# _AC_CANONICAL_SPLIT
1785 # AC_CANONICAL_BUILD
1786 # ------------------
1787 AC_DEFUN_ONCE([AC_CANONICAL_BUILD],
1788 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1789 AC_REQUIRE_AUX_FILE([config.sub])dnl
1790 AC_REQUIRE_AUX_FILE([config.guess])dnl
1791 m4_divert_once([HELP_CANON],
1794 --build=BUILD configure for building on BUILD [guessed]]])dnl
1795 # Make sure we can run config.sub.
1796 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
1797 AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
1799 AC_CACHE_CHECK([build system type], [ac_cv_build],
1800 [ac_build_alias=$build_alias
1801 test "x$ac_build_alias" = x &&
1802 ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
1803 test "x$ac_build_alias" = x &&
1804 AC_MSG_ERROR([cannot guess build type; you must specify one])
1805 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
1806 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
1808 _AC_CANONICAL_SPLIT(build)
1809 ])# AC_CANONICAL_BUILD
1814 AC_DEFUN_ONCE([AC_CANONICAL_HOST],
1815 [AC_REQUIRE([AC_CANONICAL_BUILD])dnl
1816 m4_divert_once([HELP_CANON],
1817 [[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
1818 AC_CACHE_CHECK([host system type], [ac_cv_host],
1819 [if test "x$host_alias" = x; then
1820 ac_cv_host=$ac_cv_build
1822 ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
1823 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
1826 _AC_CANONICAL_SPLIT([host])
1827 ])# AC_CANONICAL_HOST
1830 # AC_CANONICAL_TARGET
1831 # -------------------
1832 AC_DEFUN_ONCE([AC_CANONICAL_TARGET],
1833 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1834 AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
1835 m4_divert_once([HELP_CANON],
1836 [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
1837 AC_CACHE_CHECK([target system type], [ac_cv_target],
1838 [if test "x$target_alias" = x; then
1839 ac_cv_target=$ac_cv_host
1841 ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
1842 AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
1845 _AC_CANONICAL_SPLIT([target])
1847 # The aliases save the names the user supplied, while $host etc.
1848 # will get canonicalized.
1849 test -n "$target_alias" &&
1850 test "$program_prefix$program_suffix$program_transform_name" = \
1852 program_prefix=${target_alias}-[]dnl
1853 ])# AC_CANONICAL_TARGET
1856 AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET])
1859 # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD])
1860 # ------------------------------------------
1861 # If the cache file is inconsistent with the current host,
1862 # target and build system types, execute CMD or print a default
1863 # error message. Now handled via _AC_ARG_VAR_PRECIOUS.
1864 AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], [])
1867 ## ---------------------- ##
1868 ## Caching test results. ##
1869 ## ---------------------- ##
1874 # Look for site- or system-specific initialization scripts.
1875 m4_define([AC_SITE_LOAD],
1876 [# Prefer an explicitly selected file to automatically selected ones.
1879 if test -n "$CONFIG_SITE"; then
1880 # We do not want a PATH search for config.site.
1881 case $CONFIG_SITE in @%:@((
1882 -*) ac_site_file1=./$CONFIG_SITE;;
1883 */*) ac_site_file1=$CONFIG_SITE;;
1884 *) ac_site_file1=./$CONFIG_SITE;;
1886 elif test "x$prefix" != xNONE; then
1887 ac_site_file1=$prefix/share/config.site
1888 ac_site_file2=$prefix/etc/config.site
1890 ac_site_file1=$ac_default_prefix/share/config.site
1891 ac_site_file2=$ac_default_prefix/etc/config.site
1893 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
1895 test "x$ac_site_file" = xNONE && continue
1896 if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
1897 AC_MSG_NOTICE([loading site script $ac_site_file])
1898 sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
1900 || AC_MSG_FAILURE([failed to load site script $ac_site_file])
1908 m4_define([AC_CACHE_LOAD],
1909 [if test -r "$cache_file"; then
1910 # Some versions of bash will fail to source /dev/null (special files
1911 # actually), so we avoid doing that. DJGPP emulates it as a regular file.
1912 if test /dev/null != "$cache_file" && test -f "$cache_file"; then
1913 AC_MSG_NOTICE([loading cache $cache_file])
1915 [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
1916 *) . "./$cache_file";;
1920 AC_MSG_NOTICE([creating cache $cache_file])
1928 # Dump the cache to stdout. It can be in a pipe (this is a requirement).
1929 m4_define([_AC_CACHE_DUMP],
1930 [# The following way of writing the cache mishandles newlines in values,
1931 # but we know of no workaround that is simple, portable, and efficient.
1932 # So, we kill variables containing newlines.
1933 # Ultrix sh set writes to stderr and can't be redirected directly,
1934 # and sets the high bit in the cache file unless we assign to the vars.
1936 for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
1937 eval ac_val=\$$ac_var
1941 *_cv_*) AC_MSG_WARN([cache variable $ac_var contains a newline]) ;;
1944 _ | IFS | as_nl) ;; #(
1945 BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
1946 *) AS_UNSET([$ac_var]) ;;
1952 case $as_nl`(ac_space=' '; set) 2>&1` in #(
1953 *${as_nl}ac_space=\ *)
1954 # `set' does not quote correctly, so add quotes: double-quote
1955 # substitution turns \\\\ into \\, and sed turns \\ into \.
1958 s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
1961 # `set' quotes correctly as required by POSIX, so do not add quotes.
1962 sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
1973 # Allow a site initialization script to override cache values.
1974 m4_define([AC_CACHE_SAVE],
1975 [cat >confcache <<\_ACEOF
1976 # This file is a shell script that caches the results of configure
1977 # tests run on this system so they can be shared between configure
1978 # scripts and configure runs, see configure's option --config-cache.
1979 # It is not useful on other systems. If it contains results you don't
1980 # want to keep, you may remove or edit it.
1982 # config.status only pays attention to the cache file if you give it
1983 # the --recheck option to rerun configure.
1985 # `ac_cv_env_foo' variables (set or unset) will be overridden when
1986 # loading this file, other *unset* `ac_cv_foo' will be assigned the
1996 s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
1998 s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
2000 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
2001 if test -w "$cache_file"; then
2002 if test "x$cache_file" != "x/dev/null"; then
2003 AC_MSG_NOTICE([updating cache $cache_file])
2004 if test ! -f "$cache_file" || test -h "$cache_file"; then
2005 cat confcache >"$cache_file"
2007 dnl Try to update the cache file atomically even on different mount points;
2008 dnl at the same time, avoid filename limitation issues in the common case.
2009 case $cache_file in #(
2011 mv -f confcache "$cache_file"$$ &&
2012 mv -f "$cache_file"$$ "$cache_file" ;; #(
2014 mv -f confcache "$cache_file" ;;
2019 AC_MSG_NOTICE([not updating unwritable cache $cache_file])
2022 rm -f confcache[]dnl
2026 # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT)
2027 # ------------------------------------------
2028 # The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
2029 # Should be dnl'ed. Try to catch common mistakes.
2030 m4_defun([AC_CACHE_VAL],
2031 [AS_LITERAL_WORD_IF([$1], [m4_if(m4_index(m4_quote($1), [_cv_]), [-1],
2032 [AC_DIAGNOSE([syntax],
2033 [$0($1, ...): suspicious cache-id, must contain _cv_ to be cached])])])dnl
2034 m4_if(m4_index([$2], [AC_DEFINE]), [-1], [],
2035 [AC_DIAGNOSE([syntax],
2036 [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
2037 [where no actions should be taken])])dnl
2038 m4_if(m4_index([$2], [AC_SUBST]), [-1], [],
2039 [AC_DIAGNOSE([syntax],
2040 [$0($1, ...): suspicious presence of an AC_SUBST in the second argument, ]dnl
2041 [where no actions should be taken])])dnl
2043 [_AS_ECHO_N([(cached) ])],
2048 # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
2049 # -------------------------------------------
2050 # Do not call this macro with a dnl right behind.
2051 m4_defun([AC_CACHE_CHECK],
2052 [AC_MSG_CHECKING([$1])
2053 AC_CACHE_VAL([$2], [$3])dnl
2054 AS_LITERAL_WORD_IF([$2],
2055 [AC_MSG_RESULT([$$2])],
2056 [AS_VAR_COPY([ac_res], [$2])
2057 AC_MSG_RESULT([$ac_res])])dnl
2060 # _AC_CACHE_CHECK_INT(MESSAGE, CACHE-ID, EXPRESSION,
2061 # [PROLOGUE = DEFAULT-INCLUDES], [IF-FAILS])
2062 # --------------------------------------------------------------
2063 AC_DEFUN([_AC_CACHE_CHECK_INT],
2064 [AC_CACHE_CHECK([$1], [$2],
2065 [AC_COMPUTE_INT([$2], [$3], [$4], [$5])])
2066 ])# _AC_CACHE_CHECK_INT
2070 ## ---------------------- ##
2071 ## Defining CPP symbols. ##
2072 ## ---------------------- ##
2075 # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
2076 # -------------------------------------------
2077 # Used by --trace to collect the list of AC_DEFINEd macros.
2078 m4_define([AC_DEFINE_TRACE_LITERAL],
2079 [m4_pattern_allow([^$1$])dnl
2080 AS_IDENTIFIER_IF([$1], [],
2081 [m4_warn([syntax], [AC_DEFINE: not an identifier: $1])])dnl
2082 ])# AC_DEFINE_TRACE_LITERAL
2085 # AC_DEFINE_TRACE(CPP-SYMBOL)
2086 # ---------------------------
2087 # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters
2088 # out non literal symbols. CPP-SYMBOL must not include any parameters.
2089 m4_define([AC_DEFINE_TRACE],
2090 [AS_LITERAL_WORD_IF([$1], [AC_DEFINE_TRACE_LITERAL(_m4_expand([$1]))])])
2093 # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION])
2094 # -------------------------------------------
2095 # Set VARIABLE to VALUE, verbatim, or 1. Remember the value
2096 # and if VARIABLE is affected the same VALUE, do nothing, else
2097 # die. The third argument is used by autoheader.
2098 m4_define([AC_DEFINE], [_AC_DEFINE_Q([_$0], $@)])
2100 # _AC_DEFINE(STRING)
2101 # ------------------
2102 # Append the pre-expanded STRING and a newline to confdefs.h, as if by
2103 # a quoted here-doc.
2104 m4_define([_AC_DEFINE],
2105 [AS_ECHO(["AS_ESCAPE([[$1]])"]) >>confdefs.h])
2108 # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
2109 # ----------------------------------------------------
2110 # Similar, but perform shell substitutions $ ` \ once on VALUE, as
2111 # in an unquoted here-doc.
2112 m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([_$0], $@)])
2114 # _AC_DEFINE_UNQUOTED(STRING)
2115 # ---------------------------
2116 # Append the pre-expanded STRING and a newline to confdefs.h, as if
2117 # with an unquoted here-doc, but avoiding a fork in the common case of
2118 # no backslash, no command substitution, no complex variable
2119 # substitution, and no quadrigraphs.
2120 m4_define([_AC_DEFINE_UNQUOTED],
2121 [m4_if(m4_bregexp([$1], [\\\|`\|\$(\|\${\|@]), [-1],
2122 [AS_ECHO(["AS_ESCAPE([$1], [""])"]) >>confdefs.h],
2123 [cat >>confdefs.h <<_ACEOF
2128 # _AC_DEFINE_Q(MACRO, VARIABLE, [VALUE], [DESCRIPTION])
2129 # -----------------------------------------------------
2130 # Internal function that performs common elements of AC_DEFINE{,_UNQUOTED}.
2131 # MACRO must take one argument, which is the fully expanded string to
2132 # append to confdefs.h as if by a possibly-quoted here-doc.
2134 # m4_index is roughly 5 to 8 times faster than m4_bpatsubst, so we use
2135 # m4_format rather than regex to grab prefix up to first (). AC_name
2136 # is defined with over-quotation, so that we can avoid m4_defn; this
2137 # is only safe because the name should not contain $.
2139 # Guarantee a match in m4_index, so as to avoid a bug with precision
2140 # -1 in m4_format in older m4.
2141 m4_define([_AC_DEFINE_Q],
2142 [m4_pushdef([AC_name], m4_format([[[%.*s]]], m4_index([$2(], [(]), [$2]))]dnl
2143 [AC_DEFINE_TRACE(AC_name)]dnl
2144 [m4_cond([m4_index([$3], [
2146 [m4_bregexp([[$3]], [[^\\]
2148 [m4_warn([syntax], [AC_DEFINE]m4_if([$1], [_AC_DEFINE], [],
2149 [[_UNQUOTED]])[: `$3' is not a valid preprocessor define value])])]dnl
2150 [m4_ifval([$4], [AH_TEMPLATE(AC_name, [$4])
2151 ])_m4_popdef([AC_name])]dnl
2152 [$1(m4_expand([[@%:@define] $2 ]m4_if([$#], 2, 1,
2153 [$3], [], [/**/], [[$3]])))
2158 ## -------------------------- ##
2159 ## Setting output variables. ##
2160 ## -------------------------- ##
2163 # AC_SUBST_TRACE(VARIABLE)
2164 # ------------------------
2165 # This macro is used with --trace to collect the list of substituted variables.
2166 m4_define([AC_SUBST_TRACE])
2169 # AC_SUBST(VARIABLE, [VALUE])
2170 # ---------------------------
2171 # Create an output variable from a shell VARIABLE. If VALUE is given
2172 # assign it to VARIABLE. Use `""' if you want to set VARIABLE to an
2173 # empty value, not an empty second argument.
2175 m4_define([AC_SUBST],
2176 [AS_IDENTIFIER_IF([$1], [],
2177 [m4_fatal([$0: `$1' is not a valid shell variable name])])]dnl
2178 [AC_SUBST_TRACE([$1])]dnl
2179 [m4_pattern_allow([^$1$])]dnl
2180 [m4_ifvaln([$2], [$1=$2])[]]dnl
2181 [m4_set_add([_AC_SUBST_VARS], [$1])])# AC_SUBST
2184 # AC_SUBST_FILE(VARIABLE)
2185 # -----------------------
2186 # Read the comments of the preceding macro.
2187 m4_define([AC_SUBST_FILE],
2188 [m4_pattern_allow([^$1$])dnl
2189 m4_append_uniq([_AC_SUBST_FILES], [$1], [
2194 ## --------------------------------------- ##
2195 ## Printing messages at autoconf runtime. ##
2196 ## --------------------------------------- ##
2198 # In fact, I think we should promote the use of m4_warn and m4_fatal
2199 # directly. This will also avoid to some people to get it wrong
2200 # between AC_FATAL and AC_MSG_ERROR.
2203 # AC_DIAGNOSE(CATEGORY, MESSAGE)
2204 # AC_FATAL(MESSAGE, [EXIT-STATUS])
2205 # --------------------------------
2206 m4_define([AC_DIAGNOSE], [m4_warn($@)])
2207 m4_define([AC_FATAL], [m4_fatal($@)])
2210 # AC_WARNING(MESSAGE)
2211 # -------------------
2212 # Report a MESSAGE to the user of autoconf if `-W' or `-W all' was
2214 m4_define([AC_WARNING],
2215 [AC_DIAGNOSE([syntax], [$1])])
2220 ## ---------------------------------------- ##
2221 ## Printing messages at configure runtime. ##
2222 ## ---------------------------------------- ##
2225 # AC_MSG_CHECKING(FEATURE)
2226 # ------------------------
2227 m4_define([AC_MSG_CHECKING],
2228 [{ _AS_ECHO_LOG([checking $1])
2229 _AS_ECHO_N([checking $1... ]); }dnl
2233 # AC_MSG_RESULT(RESULT)
2234 # ---------------------
2235 m4_define([AC_MSG_RESULT],
2236 [{ _AS_ECHO_LOG([result: $1])
2237 _AS_ECHO([$1]); }dnl
2241 # AC_MSG_WARN(PROBLEM)
2242 # AC_MSG_NOTICE(STRING)
2243 # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
2244 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
2245 # ----------------------------------------
2246 m4_copy([AS_WARN], [AC_MSG_WARN])
2247 m4_copy([AS_MESSAGE], [AC_MSG_NOTICE])
2248 m4_copy([AS_ERROR], [AC_MSG_ERROR])
2249 m4_define([AC_MSG_FAILURE],
2250 [{ AS_MESSAGE([error: in `$ac_pwd':], 2)
2252 See `config.log' for more details], [$2]); }])
2255 # _AC_MSG_LOG_CONFTEST
2256 # --------------------
2257 m4_define([_AC_MSG_LOG_CONFTEST],
2258 [AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD
2259 sed 's/^/| /' conftest.$ac_ext >&AS_MESSAGE_LOG_FD
2263 # AU::AC_CHECKING(FEATURE)
2264 # ------------------------
2265 AU_DEFUN([AC_CHECKING],
2266 [AS_MESSAGE([checking $1...])])
2269 # AU::AC_MSG_RESULT_UNQUOTED(RESULT)
2270 # ----------------------------------
2271 # No escaping, so it performed also backtick substitution.
2272 AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
2273 [_AS_ECHO_UNQUOTED([$as_me:${as_lineno-$LINENO}: result: $1], AS_MESSAGE_LOG_FD)
2274 _AS_ECHO_UNQUOTED([$1])[]dnl
2278 # AU::AC_VERBOSE(STRING)
2279 # ----------------------
2280 AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
2287 ## ---------------------------- ##
2288 ## Compiler-running mechanics. ##
2289 ## ---------------------------- ##
2292 # _AC_RUN_LOG(COMMAND, LOG-COMMANDS)
2293 # ----------------------------------
2294 # Eval COMMAND, save the exit status in ac_status, and log it. The return
2295 # code is 0 if COMMAND succeeded, so that it can be used directly in AS_IF
2297 AC_DEFUN([_AC_RUN_LOG],
2298 [{ { $2; } >&AS_MESSAGE_LOG_FD
2299 ($1) 2>&AS_MESSAGE_LOG_FD
2301 _AS_ECHO_LOG([\$? = $ac_status])
2302 test $ac_status = 0; }])
2305 # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS)
2306 # -----------------------------------------
2307 # Run COMMAND, save its stderr into conftest.err, save the exit status
2308 # in ac_status, and log it. Don't forget to clean up conftest.err after
2310 # Note that when tracing, most shells will leave the traces in stderr
2311 # starting with "+": that's what this macro tries to address.
2312 # The return code is 0 if COMMAND succeeded, so that it can be used directly
2313 # in AS_IF constructs.
2314 AC_DEFUN([_AC_RUN_LOG_STDERR],
2315 [{ { $2; } >&AS_MESSAGE_LOG_FD
2318 if test -s conftest.err; then
2319 grep -v '^ *+' conftest.err >conftest.er1
2320 cat conftest.er1 >&AS_MESSAGE_LOG_FD
2321 mv -f conftest.er1 conftest.err
2323 _AS_ECHO_LOG([\$? = $ac_status])
2324 test $ac_status = 0; }])
2327 # _AC_RUN_LOG_LIMIT(COMMAND, LOG-COMMANDS, [LINES])
2328 # -------------------------------------------------
2329 # Like _AC_RUN_LOG, but only log LINES lines from stderr,
2330 # defaulting to 10 lines.
2331 AC_DEFUN([_AC_RUN_LOG_LIMIT],
2332 [{ { $2; } >&AS_MESSAGE_LOG_FD
2335 if test -s conftest.err; then
2336 sed 'm4_default([$3], [10])a\
2337 ... rest of stderr output deleted ...
2338 m4_default([$3], [10])q' conftest.err >conftest.er1
2339 cat conftest.er1 >&AS_MESSAGE_LOG_FD
2341 rm -f conftest.er1 conftest.err
2342 _AS_ECHO_LOG([\$? = $ac_status])
2343 test $ac_status = 0; }])
2346 # _AC_DO_ECHO(COMMAND)
2347 # --------------------
2348 # Echo COMMAND. This is designed to be used just before evaluating COMMAND.
2349 AC_DEFUN([_AC_DO_ECHO],
2350 [m4_if([$1], [$ac_try], [], [ac_try="$1"
2352 dnl If the string contains '\"', '`', or '\\', then just echo it rather
2353 dnl than expanding it. This is a hack, but it is safer, while also
2354 dnl typically expanding simple substrings like '$CC', which is what we want.
2356 dnl Much of this macro body is quoted, to work around misuses like
2357 dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
2358 dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
2359 dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
2360 dnl underquoting misuses, such as
2361 dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
2362 dnl We normally wouldn't bother with this kind of workaround for invalid code
2363 dnl but this change was put in just before Autoconf 2.60 and we wanted to
2364 dnl minimize the integration hassle.
2365 [[case "(($ac_try" in
2366 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
2367 *) ac_try_echo=$ac_try;;
2369 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""]
2370 AS_ECHO(["$ac_try_echo"])])
2374 # Eval COMMAND, save the exit status in ac_status, and log it.
2375 # For internal use only.
2377 [_AC_RUN_LOG([eval "$1"],
2378 [_AC_DO_ECHO([$1])])])
2381 # _AC_DO_STDERR(COMMAND)
2382 # ----------------------
2383 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2384 AC_DEFUN([_AC_DO_STDERR],
2385 [_AC_RUN_LOG_STDERR([eval "$1"],
2386 [_AC_DO_ECHO([$1])])])
2389 # _AC_DO_VAR(VARIABLE)
2390 # --------------------
2391 # Evaluate "$VARIABLE", which should be a valid shell command.
2392 # The purpose of this macro is to write "configure:123: command line"
2393 # into config.log for every test run.
2394 AC_DEFUN([_AC_DO_VAR],
2398 # _AC_DO_TOKENS(COMMAND)
2399 # ----------------------
2400 # Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
2401 # tokens of the shell command language.
2402 AC_DEFUN([_AC_DO_TOKENS],
2404 _AC_DO([$ac_try]); }])
2407 # _AC_DO_LIMIT(COMMAND, [LINES])
2408 # ------------------------------
2409 # Like _AC_DO, but limit the amount of stderr lines logged to LINES.
2410 # For internal use only.
2411 AC_DEFUN([_AC_DO_LIMIT],
2412 [_AC_RUN_LOG_LIMIT([eval "$1"],
2413 [_AC_DO_ECHO([$1])], [$2])])
2418 # Eval COMMAND, save the exit status in ac_status, and log it.
2419 # Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
2420 # It is present only for backward compatibility with previous Autoconf versions.
2421 AC_DEFUN([_AC_EVAL],
2422 [_AC_RUN_LOG([eval $1],
2423 [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])])
2426 # _AC_EVAL_STDERR(COMMAND)
2427 # ------------------------
2428 # Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
2429 # Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
2430 # It is present only for backward compatibility with previous Autoconf versions.
2431 AC_DEFUN([_AC_EVAL_STDERR],
2432 [_AC_RUN_LOG_STDERR([eval $1],
2433 [eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$1\""])])
2436 # AC_TRY_EVAL(VARIABLE)
2437 # ---------------------
2438 # Evaluate $VARIABLE, which should be a valid shell command.
2439 # The purpose of this macro is to write "configure:123: command line"
2440 # into config.log for every test run.
2442 # The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
2443 # undocumented, and should not be used.
2444 # They may be removed or their API changed in a future release.
2445 # Autoconf itself no longer uses these two macros; they are present
2446 # only for backward compatibility with previous versions of Autoconf.
2447 # Not every shell command will work due to problems with eval
2448 # and quoting, and the rules for exactly what does work are tricky.
2449 # Worse, due to double-expansion during evaluation, arbitrary unintended
2450 # shell commands could be executed in some situations.
2451 AC_DEFUN([AC_TRY_EVAL],
2455 # AC_TRY_COMMAND(COMMAND)
2456 # -----------------------
2457 # Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
2458 # tokens of the shell command language.
2459 # This macro should not be used; see the comments under AC_TRY_EVAL for why.
2460 AC_DEFUN([AC_TRY_COMMAND],
2462 _AC_EVAL([$ac_try]); }])
2465 # AC_RUN_LOG(COMMAND)
2466 # -------------------
2467 AC_DEFUN([AC_RUN_LOG],
2469 [AS_ECHO(["$as_me:${as_lineno-$LINENO}: AS_ESCAPE([$1])"])])])
2474 ## ------------------------ ##
2475 ## Examining declarations. ##
2476 ## ------------------------ ##
2479 # _AC_PREPROC_IFELSE_BODY
2480 # -----------------------
2481 # Shell function body for _AC_PREPROC_IFELSE.
2482 m4_define([_AC_PREPROC_IFELSE_BODY],
2483 [ AS_LINENO_PUSH([$[]1])
2484 AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) > conftest.i && {
2485 test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2486 test ! -s conftest.err
2489 [_AC_MSG_LOG_CONFTEST
2492 AS_SET_STATUS([$ac_retval])
2493 ])# _AC_PREPROC_IFELSE_BODY
2496 # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2497 # ----------------------------------------------------------------
2498 # Try to preprocess PROGRAM.
2500 # This macro can be used during the selection of a preprocessor.
2501 # eval is necessary to expand ac_cpp.
2502 AC_DEFUN([_AC_PREPROC_IFELSE],
2503 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_cpp],
2504 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_cpp], [LINENO],
2505 [Try to preprocess conftest.$ac_ext, and return whether this succeeded.])],
2507 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2508 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_cpp "$LINENO"], [$2], [$3])
2509 rm -f conftest.err conftest.i[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2510 ])# _AC_PREPROC_IFELSE
2512 # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2513 # ---------------------------------------------------------------
2514 # Try to preprocess PROGRAM. Requires that the preprocessor for the
2515 # current language was checked for, hence do not use this macro in macros
2516 # looking for a preprocessor.
2517 AC_DEFUN([AC_PREPROC_IFELSE],
2518 [AC_LANG_PREPROC_REQUIRE()dnl
2519 _AC_PREPROC_IFELSE($@)])
2522 # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2523 # ---------------------------------------------------------
2524 # AC_TRY_CPP is used to check whether particular header files exist.
2525 # (But it actually tests whether INCLUDES produces no CPP errors.)
2527 # INCLUDES are not defaulted and are double quoted.
2528 AU_DEFUN([AC_TRY_CPP],
2529 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])])
2532 # AC_EGREP_CPP(PATTERN, PROGRAM,
2533 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2534 # ------------------------------------------------------
2535 # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must
2536 # come early, it is not included in AC_BEFORE checks.
2537 AC_DEFUN([AC_EGREP_CPP],
2538 [AC_LANG_PREPROC_REQUIRE()dnl
2539 AC_REQUIRE([AC_PROG_EGREP])dnl
2540 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
2541 AS_IF([dnl eval is necessary to expand ac_cpp.
2542 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
2543 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
2544 dnl Quote $1 to prevent m4 from eating character classes
2545 $EGREP "[$1]" >/dev/null 2>&1],
2552 # AC_EGREP_HEADER(PATTERN, HEADER-FILE,
2553 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2554 # ---------------------------------------------------------
2555 AC_DEFUN([AC_EGREP_HEADER],
2563 ## ------------------ ##
2564 ## Examining syntax. ##
2565 ## ------------------ ##
2567 # _AC_COMPILE_IFELSE_BODY
2568 # -----------------------
2569 # Shell function body for _AC_COMPILE_IFELSE.
2570 m4_define([_AC_COMPILE_IFELSE_BODY],
2571 [ AS_LINENO_PUSH([$[]1])
2572 rm -f conftest.$ac_objext
2573 AS_IF([_AC_DO_STDERR($ac_compile) && {
2574 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2575 test ! -s conftest.err
2576 } && test -s conftest.$ac_objext],
2578 [_AC_MSG_LOG_CONFTEST
2581 AS_SET_STATUS([$ac_retval])
2582 ])# _AC_COMPILE_IFELSE_BODY
2585 # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2586 # ----------------------------------------------------------------
2587 # Try to compile PROGRAM.
2588 # This macro can be used during the selection of a compiler.
2589 AC_DEFUN([_AC_COMPILE_IFELSE],
2590 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_compile],
2591 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_compile], [LINENO],
2592 [Try to compile conftest.$ac_ext, and return whether this succeeded.])],
2594 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2595 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_compile "$LINENO"], [$2], [$3])
2596 rm -f core conftest.err conftest.$ac_objext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2597 ])# _AC_COMPILE_IFELSE
2600 # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2601 # ---------------------------------------------------------------
2602 # Try to compile PROGRAM. Requires that the compiler for the current
2603 # language was checked for, hence do not use this macro in macros looking
2605 AC_DEFUN([AC_COMPILE_IFELSE],
2606 [AC_LANG_COMPILER_REQUIRE()dnl
2607 _AC_COMPILE_IFELSE($@)])
2610 # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
2611 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2612 # ---------------------------------------------------
2613 AU_DEFUN([AC_TRY_COMPILE],
2614 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2618 ## --------------------- ##
2619 ## Examining libraries. ##
2620 ## --------------------- ##
2623 # _AC_LINK_IFELSE_BODY
2624 # --------------------
2625 # Shell function body for _AC_LINK_IFELSE.
2626 m4_define([_AC_LINK_IFELSE_BODY],
2627 [ AS_LINENO_PUSH([$[]1])
2628 rm -f conftest.$ac_objext conftest$ac_exeext
2629 AS_IF([_AC_DO_STDERR($ac_link) && {
2630 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
2631 test ! -s conftest.err
2632 } && test -s conftest$ac_exeext && {
2633 test "$cross_compiling" = yes ||
2634 AS_TEST_X([conftest$ac_exeext])
2637 [_AC_MSG_LOG_CONFTEST
2639 # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
2640 # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
2641 # interfere with the next link command; also delete a directory that is
2642 # left behind by Apple's compiler. We do this before executing the actions.
2643 rm -rf conftest.dSYM conftest_ipa8_conftest.oo
2645 AS_SET_STATUS([$ac_retval])
2646 ])# _AC_LINK_IFELSE_BODY
2649 # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2650 # -------------------------------------------------------------
2651 # Try to link PROGRAM.
2652 # This macro can be used during the selection of a compiler.
2654 # Test that resulting file is executable; see the problem reported by mwoehlke
2655 # in <http://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00048.html>.
2656 # But skip the test when cross-compiling, to prevent problems like the one
2657 # reported by Chris Johns in
2658 # <http://lists.gnu.org/archive/html/autoconf/2007-03/msg00085.html>.
2660 AC_DEFUN([_AC_LINK_IFELSE],
2661 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_link],
2662 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_link], [LINENO],
2663 [Try to link conftest.$ac_ext, and return whether this succeeded.])],
2665 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2666 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_link "$LINENO"], [$2], [$3])
2667 rm -f core conftest.err conftest.$ac_objext \
2668 conftest$ac_exeext[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2672 # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2673 # ------------------------------------------------------------
2674 # Try to link PROGRAM. Requires that the compiler for the current
2675 # language was checked for, hence do not use this macro in macros looking
2677 AC_DEFUN([AC_LINK_IFELSE],
2678 [AC_LANG_COMPILER_REQUIRE()dnl
2679 _AC_LINK_IFELSE($@)])
2682 # AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
2683 # [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2684 # ------------------------------------------------
2685 # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
2686 AU_DEFUN([AC_TRY_LINK],
2687 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
2690 # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
2691 # ACTION-IF-TRUE, [ACTION-IF-FALSE])
2692 # ---------------------------------------------------
2693 AU_DEFUN([AC_COMPILE_CHECK],
2694 [m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
2695 AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
2700 ## ------------------------------- ##
2701 ## Checking for runtime features. ##
2702 ## ------------------------------- ##
2705 # _AC_RUN_IFELSE_BODY
2706 # -------------------
2707 # Shell function body for _AC_RUN_IFELSE.
2708 m4_define([_AC_RUN_IFELSE_BODY],
2709 [ AS_LINENO_PUSH([$[]1])
2710 AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
2712 [AS_ECHO(["$as_me: program exited with status $ac_status"]) >&AS_MESSAGE_LOG_FD
2713 _AC_MSG_LOG_CONFTEST
2714 ac_retval=$ac_status])
2715 rm -rf conftest.dSYM conftest_ipa8_conftest.oo
2717 AS_SET_STATUS([$ac_retval])
2718 ])# _AC_RUN_IFELSE_BODY
2721 # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
2722 # ------------------------------------------------------------
2723 # Compile, link, and run.
2724 # This macro can be used during the selection of a compiler.
2725 # We also remove conftest.o as if the compilation fails, some compilers
2726 # don't remove it. We remove gmon.out and bb.out, which may be
2727 # created during the run if the program is built with profiling support.
2728 AC_DEFUN([_AC_RUN_IFELSE],
2729 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_try_run],
2730 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_try_run], [LINENO],
2731 [Try to link conftest.$ac_ext, and return whether this succeeded.
2732 Assumes that executables *can* be run.])],
2734 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])]dnl
2735 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_try_run "$LINENO"], [$2], [$3])
2736 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
2737 conftest.$ac_objext conftest.beam[]m4_ifval([$1], [ conftest.$ac_ext])[]dnl
2740 # AC_RUN_IFELSE(PROGRAM,
2741 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2742 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2743 # ----------------------------------------------------------
2744 # Compile, link, and run. Requires that the compiler for the current
2745 # language was checked for, hence do not use this macro in macros looking
2747 AC_DEFUN([AC_RUN_IFELSE],
2748 [AC_LANG_COMPILER_REQUIRE()dnl
2750 [AC_DIAGNOSE([cross],
2751 [$0 called without default to allow cross compiling])])dnl
2752 AS_IF([test "$cross_compiling" = yes],
2754 [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
2755 [_AC_RUN_IFELSE($@)])
2759 # AC_TRY_RUN(PROGRAM,
2760 # [ACTION-IF-TRUE], [ACTION-IF-FALSE],
2761 # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
2762 # -------------------------------------------------------
2763 AU_DEFUN([AC_TRY_RUN],
2764 [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])])
2768 ## ------------------------------------- ##
2769 ## Checking for the existence of files. ##
2770 ## ------------------------------------- ##
2772 # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2773 # -------------------------------------------------------------
2775 # Check for the existence of FILE.
2776 AC_DEFUN([AC_CHECK_FILE],
2777 [AC_DIAGNOSE([cross],
2778 [cannot check for file existence when cross compiling])dnl
2779 AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
2780 AC_CACHE_CHECK([for $1], [ac_File],
2781 [test "$cross_compiling" = yes &&
2782 AC_MSG_ERROR([cannot check for file existence when cross compiling])
2783 if test -r "$1"; then
2784 AS_VAR_SET([ac_File], [yes])
2786 AS_VAR_SET([ac_File], [no])
2788 AS_VAR_IF([ac_File], [yes], [$2], [$3])
2789 AS_VAR_POPDEF([ac_File])dnl
2793 # _AC_CHECK_FILES(FILE)
2794 # ---------------------
2795 # Helper to AC_CHECK_FILES, which generates two of the three arguments
2796 # to AC_CHECK_FILE based on FILE.
2797 m4_define([_AC_CHECK_FILES],
2798 [[$1], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1],
2799 [Define to 1 if you have the file `$1'.])]])
2802 # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
2803 # -----------------------------------------------------------------
2804 # For each word in the whitespace-separated FILE list, perform either
2805 # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND. For files that exist, also
2806 # provide the preprocessor variable HAVE_FILE.
2807 AC_DEFUN([AC_CHECK_FILES],
2808 [m4_map_args_w([$1], [AC_CHECK_FILE(_$0(], [)[$2], [$3])])])
2811 ## ------------------------------- ##
2812 ## Checking for declared symbols. ##
2813 ## ------------------------------- ##
2816 # _AC_CHECK_DECL_BODY
2817 # -------------------
2818 # Shell function body for AC_CHECK_DECL.
2819 m4_define([_AC_CHECK_DECL_BODY],
2820 [ AS_LINENO_PUSH([$[]1])
2821 [as_decl_name=`echo $][2|sed 's/ *(.*//'`]
2822 [as_decl_use=`echo $][2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`]
2823 AC_CACHE_CHECK([whether $as_decl_name is declared], [$[]3],
2824 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]4],
2825 [@%:@ifndef $[]as_decl_name
2826 @%:@ifdef __cplusplus
2827 (void) $[]as_decl_use;
2829 (void) $[]as_decl_name;
2833 [AS_VAR_SET([$[]3], [yes])],
2834 [AS_VAR_SET([$[]3], [no])])])
2836 ])# _AC_CHECK_DECL_BODY
2838 # AC_CHECK_DECL(SYMBOL,
2839 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2840 # [INCLUDES = DEFAULT-INCLUDES])
2841 # -------------------------------------------------------
2842 # Check whether SYMBOL (a function, variable, or constant) is declared.
2843 AC_DEFUN([AC_CHECK_DECL],
2844 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_check_decl],
2845 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_check_decl],
2846 [LINENO SYMBOL VAR INCLUDES],
2847 [Tests whether SYMBOL is declared in INCLUDES, setting cache variable
2848 VAR accordingly.])],
2850 [AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])]dnl
2851 [ac_fn_[]_AC_LANG_ABBREV[]_check_decl ]dnl
2852 ["$LINENO" "$1" "ac_Symbol" "AS_ESCAPE([AC_INCLUDES_DEFAULT([$4])], [""])"
2853 AS_VAR_IF([ac_Symbol], [yes], [$2], [$3])
2854 AS_VAR_POPDEF([ac_Symbol])dnl
2858 # _AC_CHECK_DECLS(SYMBOL, ACTION-IF_FOUND, ACTION-IF-NOT-FOUND,
2860 # -------------------------------------------------------------
2861 # Helper to AC_CHECK_DECLS, which generates the check for a single
2862 # SYMBOL with INCLUDES, performs the AC_DEFINE, then expands
2863 # ACTION-IF-FOUND or ACTION-IF-NOT-FOUND.
2864 m4_define([_AC_CHECK_DECLS],
2865 [AC_CHECK_DECL([$1], [ac_have_decl=1], [ac_have_decl=0], [$4])]dnl
2866 [AC_DEFINE_UNQUOTED(AS_TR_CPP(m4_bpatsubst(HAVE_DECL_[$1],[ *(.*])),
2868 [Define to 1 if you have the declaration of `$1',
2869 and to 0 if you don't.])]dnl
2870 [m4_ifvaln([$2$3], [AS_IF([test $ac_have_decl = 1], [$2], [$3])])])
2872 # AC_CHECK_DECLS(SYMBOLS,
2873 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
2874 # [INCLUDES = DEFAULT-INCLUDES])
2875 # --------------------------------------------------------
2876 # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the
2877 # documentation for a detailed explanation of this difference with
2878 # other AC_CHECK_*S macros. SYMBOLS is an m4 list.
2879 AC_DEFUN([AC_CHECK_DECLS],
2880 [m4_map_args_sep([_$0(], [, [$2], [$3], [$4])], [], $1)])
2883 # _AC_CHECK_DECL_ONCE(SYMBOL)
2884 # ---------------------------
2885 # Check for a single SYMBOL once.
2886 m4_define([_AC_CHECK_DECL_ONCE],
2887 [AC_DEFUN([_AC_Check_Decl_$1], [_AC_CHECK_DECLS([$1])])]dnl
2888 [AC_REQUIRE([_AC_Check_Decl_$1])])
2890 # AC_CHECK_DECLS_ONCE(SYMBOLS)
2891 # ----------------------------
2892 # Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
2893 AC_DEFUN([AC_CHECK_DECLS_ONCE],
2894 [m4_map_args_sep([_AC_CHECK_DECL_ONCE(], [)], [], $1)])
2898 ## ---------------------------------- ##
2899 ## Replacement of library functions. ##
2900 ## ---------------------------------- ##
2903 # AC_CONFIG_LIBOBJ_DIR(DIRNAME)
2904 # -----------------------------
2905 # Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
2906 AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
2907 [m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
2910 # AC_LIBSOURCE(FILE-NAME)
2911 # -----------------------
2912 # Announce we might need the file `FILE-NAME'.
2913 m4_define([AC_LIBSOURCE], [])
2916 # AC_LIBSOURCES([FILE-NAME1, ...])
2917 # --------------------------------
2918 # Announce we might need these files.
2919 AC_DEFUN([AC_LIBSOURCES],
2920 [m4_map_args([AC_LIBSOURCE], $1)])
2923 # _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
2924 # --------------------------------------------
2925 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2926 m4_define([_AC_LIBOBJ],
2927 [case " $LIB@&t@OBJS " in
2928 *" $1.$ac_objext "* ) ;;
2929 *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
2934 # AC_LIBOBJ(FILE-NAME-NOEXT)
2935 # --------------------------
2936 # We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
2937 AC_DEFUN([AC_LIBOBJ],
2938 [_AC_LIBOBJ([$1])]dnl
2939 [AS_LITERAL_WORD_IF([$1], [AC_LIBSOURCE([$1.c])],
2940 [AC_DIAGNOSE([syntax], [$0($1): you should use literals])])])
2943 # _AC_LIBOBJS_NORMALIZE
2944 # ---------------------
2945 # Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
2946 # 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
2947 # Used with AC_CONFIG_COMMANDS_PRE.
2948 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
2951 m4_ifndef([AM_C_PROTOTYPES], [U=
2953 for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
2954 # 1. Remove the extension, and $U if already installed.
2955 ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
2956 ac_i=`AS_ECHO(["$ac_i"]) | sed "$ac_script"`
2957 # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
2958 # will be set to the directory where LIBOBJS objects are built.
2959 AS_VAR_APPEND([ac_libobjs], [" \${LIBOBJDIR}$ac_i\$U.$ac_objext"])
2960 AS_VAR_APPEND([ac_ltlibobjs], [" \${LIBOBJDIR}$ac_i"'$U.lo'])
2962 AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
2963 AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
2967 ## ----------------------------------- ##
2968 ## Checking compiler characteristics. ##
2969 ## ----------------------------------- ##
2972 # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS],
2974 # ---------------------------------------------------------------------
2975 # Compute the integer EXPRESSION and store the result in the VARIABLE.
2976 # Works OK if cross compiling, but assumes twos-complement arithmetic.
2977 m4_define([_AC_COMPUTE_INT_COMPILE],
2978 [# Depending upon the size, compute the lo and hi bounds.
2979 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
2982 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
2983 [ac_hi=$ac_mid; break],
2984 [AS_VAR_ARITH([ac_lo], [$ac_mid + 1])
2985 if test $ac_lo -le $ac_mid; then
2989 AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid + 1])])
2991 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
2994 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
2995 [ac_lo=$ac_mid; break],
2996 [AS_VAR_ARITH([ac_hi], ['(' $ac_mid ')' - 1])
2997 if test $ac_mid -le $ac_hi; then
3001 AS_VAR_ARITH([ac_mid], [2 '*' $ac_mid])])
3004 # Binary search between lo and hi bounds.
3005 while test "x$ac_lo" != "x$ac_hi"; do
3006 AS_VAR_ARITH([ac_mid], ['(' $ac_hi - $ac_lo ')' / 2 + $ac_lo])
3007 _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
3009 [AS_VAR_ARITH([ac_lo], ['(' $ac_mid ')' + 1])])
3011 case $ac_lo in @%:@((
3012 ?*) AS_VAR_SET([$2], [$ac_lo]); $4 ;;
3015 ])# _AC_COMPUTE_INT_COMPILE
3018 # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-SUCCESS],
3020 # -----------------------------------------------------------------
3021 # Store the evaluation of the integer EXPRESSION in VARIABLE.
3023 # AC_LANG_INT_SAVE intentionally does not end the file in a newline, so
3024 # we must add one to make it a text file before passing it to read.
3025 m4_define([_AC_COMPUTE_INT_RUN],
3026 [_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
3027 [echo >>conftest.val; read $2 <conftest.val; $4], [$5])
3029 ])# _AC_COMPUTE_INT_RUN
3032 # _AC_COMPUTE_INT_BODY
3033 # --------------------
3034 # Shell function body for AC_COMPUTE_INT.
3035 m4_define([_AC_COMPUTE_INT_BODY],
3036 [ AS_LINENO_PUSH([$[]1])
3037 if test "$cross_compiling" = yes; then
3038 _AC_COMPUTE_INT_COMPILE([$[]2], [$[]3], [$[]4],
3039 [ac_retval=0], [ac_retval=1])
3041 _AC_COMPUTE_INT_RUN([$[]2], [$[]3], [$[]4],
3042 [ac_retval=0], [ac_retval=1])
3045 AS_SET_STATUS([$ac_retval])
3046 ])# _AC_COMPUTE_INT_BODY
3048 # AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS])
3049 # ----------------------------------------------------------
3050 # Store into the shell variable VARIABLE the value of the integer C expression
3051 # EXPRESSION. The value should fit in an initializer in a C variable of type
3052 # `signed long'. If no PROLOGUE are specified, the default includes are used.
3053 # IF-FAILS is evaluated if the value cannot be found (which includes the
3054 # case of cross-compilation, if EXPRESSION is not computable at compile-time.
3055 AC_DEFUN([AC_COMPUTE_INT],
3056 [AC_LANG_COMPILER_REQUIRE()]dnl
3057 [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_compute_int],
3058 [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_compute_int],
3059 [LINENO EXPR VAR INCLUDES],
3060 [Tries to find the compile-time value of EXPR in a program that includes
3061 INCLUDES, setting VAR accordingly. Returns whether the value could
3064 [AS_IF([ac_fn_[]_AC_LANG_ABBREV[]_compute_int "$LINENO" "$2" "$1" ]dnl
3065 ["AS_ESCAPE([$3], [""])"],
3069 # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
3070 # -----------------------------------------------------------
3071 # FIXME: this private interface was used by several packages.
3072 # Give them time to transition to AC_COMPUTE_INT and then delete this one.
3073 AC_DEFUN([_AC_COMPUTE_INT],
3074 [AC_COMPUTE_INT([$2], [$1], [$3], [$4])
3075 AC_DIAGNOSE([obsolete],
3076 [The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a
3077 future version or Autoconf. Hence, it is suggested that you use
3078 instead the public AC_COMPUTE_INT macro. Note that the arguments are
3079 slightly different between the two.])dnl