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1 # generated automatically by aclocal 1.16.3 -*- Autoconf -*-
2
3 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
4
5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
7 # with or without modifications, as long as this notice is preserved.
8
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12 # PARTICULAR PURPOSE.
13
14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15 m4_ifndef([AC_AUTOCONF_VERSION],
16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18 [m4_warning([this file was generated for autoconf 2.69.
19 You have another version of autoconf. It may work, but is not guaranteed to.
20 If you have problems, you may need to regenerate the build system entirely.
21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
22
23 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
24 # serial 11 (pkg-config-0.29.1)
25
26 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
27 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
28 dnl
29 dnl This program is free software; you can redistribute it and/or modify
30 dnl it under the terms of the GNU General Public License as published by
31 dnl the Free Software Foundation; either version 2 of the License, or
32 dnl (at your option) any later version.
33 dnl
34 dnl This program is distributed in the hope that it will be useful, but
35 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
36 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
37 dnl General Public License for more details.
38 dnl
39 dnl You should have received a copy of the GNU General Public License
40 dnl along with this program; if not, write to the Free Software
41 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
42 dnl 02111-1307, USA.
43 dnl
44 dnl As a special exception to the GNU General Public License, if you
45 dnl distribute this file as part of a program that contains a
46 dnl configuration script generated by Autoconf, you may include it under
47 dnl the same distribution terms that you use for the rest of that
48 dnl program.
49
50 dnl PKG_PREREQ(MIN-VERSION)
51 dnl -----------------------
52 dnl Since: 0.29
53 dnl
54 dnl Verify that the version of the pkg-config macros are at least
55 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
56 dnl installed version of pkg-config, this checks the developer's version
57 dnl of pkg.m4 when generating configure.
58 dnl
59 dnl To ensure that this macro is defined, also add:
60 dnl m4_ifndef([PKG_PREREQ],
61 dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
62 dnl
63 dnl See the "Since" comment for each macro you use to see what version
64 dnl of the macros you require.
65 m4_defun([PKG_PREREQ],
66 [m4_define([PKG_MACROS_VERSION], [0.29.1])
67 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
68 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
69 ])dnl PKG_PREREQ
70
71 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
72 dnl ----------------------------------
73 dnl Since: 0.16
74 dnl
75 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
76 dnl first found in the path. Checks that the version of pkg-config found
77 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
78 dnl used since that's the first version where most current features of
79 dnl pkg-config existed.
80 AC_DEFUN([PKG_PROG_PKG_CONFIG],
81 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
82 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
83 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
84 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
85 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
86 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
87
88 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
89 AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
90 fi
91 if test -n "$PKG_CONFIG"; then
92 _pkg_min_version=m4_default([$1], [0.9.0])
93 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
94 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
95 AC_MSG_RESULT([yes])
96 else
97 AC_MSG_RESULT([no])
98 PKG_CONFIG=""
99 fi
100 fi[]dnl
101 ])dnl PKG_PROG_PKG_CONFIG
102
103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
104 dnl -------------------------------------------------------------------
105 dnl Since: 0.18
106 dnl
107 dnl Check to see whether a particular set of modules exists. Similar to
108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
109 dnl
110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
111 dnl only at the first occurence in configure.ac, so if the first place
112 dnl it's called might be skipped (such as if it is within an "if", you
113 dnl have to call PKG_CHECK_EXISTS manually
114 AC_DEFUN([PKG_CHECK_EXISTS],
115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
116 if test -n "$PKG_CONFIG" && \
117 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
118 m4_default([$2], [:])
119 m4_ifvaln([$3], [else
120 $3])dnl
121 fi])
122
123 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
124 dnl ---------------------------------------------
125 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
126 dnl pkg_failed based on the result.
127 m4_define([_PKG_CONFIG],
128 [if test -n "$$1"; then
129 pkg_cv_[]$1="$$1"
130 elif test -n "$PKG_CONFIG"; then
131 PKG_CHECK_EXISTS([$3],
132 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
133 test "x$?" != "x0" && pkg_failed=yes ],
134 [pkg_failed=yes])
135 else
136 pkg_failed=untried
137 fi[]dnl
138 ])dnl _PKG_CONFIG
139
140 dnl _PKG_SHORT_ERRORS_SUPPORTED
141 dnl ---------------------------
142 dnl Internal check to see if pkg-config supports short errors.
143 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
144 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
145 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
146 _pkg_short_errors_supported=yes
147 else
148 _pkg_short_errors_supported=no
149 fi[]dnl
150 ])dnl _PKG_SHORT_ERRORS_SUPPORTED
151
152
153 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
154 dnl [ACTION-IF-NOT-FOUND])
155 dnl --------------------------------------------------------------
156 dnl Since: 0.4.0
157 dnl
158 dnl Note that if there is a possibility the first call to
159 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
160 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
161 AC_DEFUN([PKG_CHECK_MODULES],
162 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
163 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
164 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
165
166 pkg_failed=no
167 AC_MSG_CHECKING([for $1])
168
169 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
170 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
171
172 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
173 and $1[]_LIBS to avoid the need to call pkg-config.
174 See the pkg-config man page for more details.])
175
176 if test $pkg_failed = yes; then
177 AC_MSG_RESULT([no])
178 _PKG_SHORT_ERRORS_SUPPORTED
179 if test $_pkg_short_errors_supported = yes; then
180 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
181 else
182 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
183 fi
184 # Put the nasty error message in config.log where it belongs
185 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
186
187 m4_default([$4], [AC_MSG_ERROR(
188 [Package requirements ($2) were not met:
189
190 $$1_PKG_ERRORS
191
192 Consider adjusting the PKG_CONFIG_PATH environment variable if you
193 installed software in a non-standard prefix.
194
195 _PKG_TEXT])[]dnl
196 ])
197 elif test $pkg_failed = untried; then
198 AC_MSG_RESULT([no])
199 m4_default([$4], [AC_MSG_FAILURE(
200 [The pkg-config script could not be found or is too old. Make sure it
201 is in your PATH or set the PKG_CONFIG environment variable to the full
202 path to pkg-config.
203
204 _PKG_TEXT
205
206 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
207 ])
208 else
209 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
210 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
211 AC_MSG_RESULT([yes])
212 $3
213 fi[]dnl
214 ])dnl PKG_CHECK_MODULES
215
216
217 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
218 dnl [ACTION-IF-NOT-FOUND])
219 dnl ---------------------------------------------------------------------
220 dnl Since: 0.29
221 dnl
222 dnl Checks for existence of MODULES and gathers its build flags with
223 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
224 dnl and VARIABLE-PREFIX_LIBS from --libs.
225 dnl
226 dnl Note that if there is a possibility the first call to
227 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
228 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
229 dnl configure.ac.
230 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
231 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
232 _save_PKG_CONFIG=$PKG_CONFIG
233 PKG_CONFIG="$PKG_CONFIG --static"
234 PKG_CHECK_MODULES($@)
235 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
236 ])dnl PKG_CHECK_MODULES_STATIC
237
238
239 dnl PKG_INSTALLDIR([DIRECTORY])
240 dnl -------------------------
241 dnl Since: 0.27
242 dnl
243 dnl Substitutes the variable pkgconfigdir as the location where a module
244 dnl should install pkg-config .pc files. By default the directory is
245 dnl $libdir/pkgconfig, but the default can be changed by passing
246 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
247 dnl parameter.
248 AC_DEFUN([PKG_INSTALLDIR],
249 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
250 m4_pushdef([pkg_description],
251 [pkg-config installation directory @<:@]pkg_default[@:>@])
252 AC_ARG_WITH([pkgconfigdir],
253 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
254 [with_pkgconfigdir=]pkg_default)
255 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
256 m4_popdef([pkg_default])
257 m4_popdef([pkg_description])
258 ])dnl PKG_INSTALLDIR
259
260
261 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
262 dnl --------------------------------
263 dnl Since: 0.27
264 dnl
265 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
266 dnl module should install arch-independent pkg-config .pc files. By
267 dnl default the directory is $datadir/pkgconfig, but the default can be
268 dnl changed by passing DIRECTORY. The user can override through the
269 dnl --with-noarch-pkgconfigdir parameter.
270 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
271 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
272 m4_pushdef([pkg_description],
273 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
274 AC_ARG_WITH([noarch-pkgconfigdir],
275 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
276 [with_noarch_pkgconfigdir=]pkg_default)
277 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
278 m4_popdef([pkg_default])
279 m4_popdef([pkg_description])
280 ])dnl PKG_NOARCH_INSTALLDIR
281
282
283 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
284 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
285 dnl -------------------------------------------
286 dnl Since: 0.28
287 dnl
288 dnl Retrieves the value of the pkg-config variable for the given module.
289 AC_DEFUN([PKG_CHECK_VAR],
290 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
291 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
292
293 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
294 AS_VAR_COPY([$1], [pkg_cv_][$1])
295
296 AS_VAR_IF([$1], [""], [$5], [$4])dnl
297 ])dnl PKG_CHECK_VAR
298
299 dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
300 dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
301 dnl [DESCRIPTION], [DEFAULT])
302 dnl ------------------------------------------
303 dnl
304 dnl Prepare a "--with-" configure option using the lowercase
305 dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
306 dnl PKG_CHECK_MODULES in a single macro.
307 AC_DEFUN([PKG_WITH_MODULES],
308 [
309 m4_pushdef([with_arg], m4_tolower([$1]))
310
311 m4_pushdef([description],
312 [m4_default([$5], [build with ]with_arg[ support])])
313
314 m4_pushdef([def_arg], [m4_default([$6], [auto])])
315 m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
316 m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
317
318 m4_case(def_arg,
319 [yes],[m4_pushdef([with_without], [--without-]with_arg)],
320 [m4_pushdef([with_without],[--with-]with_arg)])
321
322 AC_ARG_WITH(with_arg,
323 AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
324 [AS_TR_SH([with_]with_arg)=def_arg])
325
326 AS_CASE([$AS_TR_SH([with_]with_arg)],
327 [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
328 [auto],[PKG_CHECK_MODULES([$1],[$2],
329 [m4_n([def_action_if_found]) $3],
330 [m4_n([def_action_if_not_found]) $4])])
331
332 m4_popdef([with_arg])
333 m4_popdef([description])
334 m4_popdef([def_arg])
335
336 ])dnl PKG_WITH_MODULES
337
338 dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
339 dnl [DESCRIPTION], [DEFAULT])
340 dnl -----------------------------------------------
341 dnl
342 dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
343 dnl check._[VARIABLE-PREFIX] is exported as make variable.
344 AC_DEFUN([PKG_HAVE_WITH_MODULES],
345 [
346 PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
347
348 AM_CONDITIONAL([HAVE_][$1],
349 [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
350 ])dnl PKG_HAVE_WITH_MODULES
351
352 dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
353 dnl [DESCRIPTION], [DEFAULT])
354 dnl ------------------------------------------------------
355 dnl
356 dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
357 dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
358 dnl and preprocessor variable.
359 AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
360 [
361 PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
362
363 AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
364 [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
365 ])dnl PKG_HAVE_DEFINE_WITH_MODULES
366
367 # Copyright (C) 2002-2020 Free Software Foundation, Inc.
368 #
369 # This file is free software; the Free Software Foundation
370 # gives unlimited permission to copy and/or distribute it,
371 # with or without modifications, as long as this notice is preserved.
372
373 # AM_AUTOMAKE_VERSION(VERSION)
374 # ----------------------------
375 # Automake X.Y traces this macro to ensure aclocal.m4 has been
376 # generated from the m4 files accompanying Automake X.Y.
377 # (This private macro should not be called outside this file.)
378 AC_DEFUN([AM_AUTOMAKE_VERSION],
379 [am__api_version='1.16'
380 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
381 dnl require some minimum version. Point them to the right macro.
382 m4_if([$1], [1.16.3], [],
383 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
384 ])
385
386 # _AM_AUTOCONF_VERSION(VERSION)
387 # -----------------------------
388 # aclocal traces this macro to find the Autoconf version.
389 # This is a private macro too. Using m4_define simplifies
390 # the logic in aclocal, which can simply ignore this definition.
391 m4_define([_AM_AUTOCONF_VERSION], [])
392
393 # AM_SET_CURRENT_AUTOMAKE_VERSION
394 # -------------------------------
395 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
396 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
397 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
398 [AM_AUTOMAKE_VERSION([1.16.3])dnl
399 m4_ifndef([AC_AUTOCONF_VERSION],
400 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
401 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
402
403 # Copyright (C) 2011-2020 Free Software Foundation, Inc.
404 #
405 # This file is free software; the Free Software Foundation
406 # gives unlimited permission to copy and/or distribute it,
407 # with or without modifications, as long as this notice is preserved.
408
409 # AM_PROG_AR([ACT-IF-FAIL])
410 # -------------------------
411 # Try to determine the archiver interface, and trigger the ar-lib wrapper
412 # if it is needed. If the detection of archiver interface fails, run
413 # ACT-IF-FAIL (default is to abort configure with a proper error message).
414 AC_DEFUN([AM_PROG_AR],
415 [AC_BEFORE([$0], [LT_INIT])dnl
416 AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
417 AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
418 AC_REQUIRE_AUX_FILE([ar-lib])dnl
419 AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
420 : ${AR=ar}
421
422 AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
423 [AC_LANG_PUSH([C])
424 am_cv_ar_interface=ar
425 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
426 [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
427 AC_TRY_EVAL([am_ar_try])
428 if test "$ac_status" -eq 0; then
429 am_cv_ar_interface=ar
430 else
431 am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
432 AC_TRY_EVAL([am_ar_try])
433 if test "$ac_status" -eq 0; then
434 am_cv_ar_interface=lib
435 else
436 am_cv_ar_interface=unknown
437 fi
438 fi
439 rm -f conftest.lib libconftest.a
440 ])
441 AC_LANG_POP([C])])
442
443 case $am_cv_ar_interface in
444 ar)
445 ;;
446 lib)
447 # Microsoft lib, so override with the ar-lib wrapper script.
448 # FIXME: It is wrong to rewrite AR.
449 # But if we don't then we get into trouble of one sort or another.
450 # A longer-term fix would be to have automake use am__AR in this case,
451 # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
452 # similar.
453 AR="$am_aux_dir/ar-lib $AR"
454 ;;
455 unknown)
456 m4_default([$1],
457 [AC_MSG_ERROR([could not determine $AR interface])])
458 ;;
459 esac
460 AC_SUBST([AR])dnl
461 ])
462
463 # AM_AUX_DIR_EXPAND -*- Autoconf -*-
464
465 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
466 #
467 # This file is free software; the Free Software Foundation
468 # gives unlimited permission to copy and/or distribute it,
469 # with or without modifications, as long as this notice is preserved.
470
471 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
472 # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
473 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
474 #
475 # Of course, Automake must honor this variable whenever it calls a
476 # tool from the auxiliary directory. The problem is that $srcdir (and
477 # therefore $ac_aux_dir as well) can be either absolute or relative,
478 # depending on how configure is run. This is pretty annoying, since
479 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
480 # source directory, any form will work fine, but in subdirectories a
481 # relative path needs to be adjusted first.
482 #
483 # $ac_aux_dir/missing
484 # fails when called from a subdirectory if $ac_aux_dir is relative
485 # $top_srcdir/$ac_aux_dir/missing
486 # fails if $ac_aux_dir is absolute,
487 # fails when called from a subdirectory in a VPATH build with
488 # a relative $ac_aux_dir
489 #
490 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
491 # are both prefixed by $srcdir. In an in-source build this is usually
492 # harmless because $srcdir is '.', but things will broke when you
493 # start a VPATH build or use an absolute $srcdir.
494 #
495 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
496 # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
497 # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
498 # and then we would define $MISSING as
499 # MISSING="\${SHELL} $am_aux_dir/missing"
500 # This will work as long as MISSING is not called from configure, because
501 # unfortunately $(top_srcdir) has no meaning in configure.
502 # However there are other variables, like CC, which are often used in
503 # configure, and could therefore not use this "fixed" $ac_aux_dir.
504 #
505 # Another solution, used here, is to always expand $ac_aux_dir to an
506 # absolute PATH. The drawback is that using absolute paths prevent a
507 # configured tree to be moved without reconfiguration.
508
509 AC_DEFUN([AM_AUX_DIR_EXPAND],
510 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
511 # Expand $ac_aux_dir to an absolute path.
512 am_aux_dir=`cd "$ac_aux_dir" && pwd`
513 ])
514
515 # AM_COND_IF -*- Autoconf -*-
516
517 # Copyright (C) 2008-2020 Free Software Foundation, Inc.
518 #
519 # This file is free software; the Free Software Foundation
520 # gives unlimited permission to copy and/or distribute it,
521 # with or without modifications, as long as this notice is preserved.
522
523 # _AM_COND_IF
524 # _AM_COND_ELSE
525 # _AM_COND_ENDIF
526 # --------------
527 # These macros are only used for tracing.
528 m4_define([_AM_COND_IF])
529 m4_define([_AM_COND_ELSE])
530 m4_define([_AM_COND_ENDIF])
531
532 # AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
533 # ---------------------------------------
534 # If the shell condition COND is true, execute IF-TRUE, otherwise execute
535 # IF-FALSE. Allow automake to learn about conditional instantiating macros
536 # (the AC_CONFIG_FOOS).
537 AC_DEFUN([AM_COND_IF],
538 [m4_ifndef([_AM_COND_VALUE_$1],
539 [m4_fatal([$0: no such condition "$1"])])dnl
540 _AM_COND_IF([$1])dnl
541 if test -z "$$1_TRUE"; then :
542 m4_n([$2])[]dnl
543 m4_ifval([$3],
544 [_AM_COND_ELSE([$1])dnl
545 else
546 $3
547 ])dnl
548 _AM_COND_ENDIF([$1])dnl
549 fi[]dnl
550 ])
551
552 # AM_CONDITIONAL -*- Autoconf -*-
553
554 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
555 #
556 # This file is free software; the Free Software Foundation
557 # gives unlimited permission to copy and/or distribute it,
558 # with or without modifications, as long as this notice is preserved.
559
560 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
561 # -------------------------------------
562 # Define a conditional.
563 AC_DEFUN([AM_CONDITIONAL],
564 [AC_PREREQ([2.52])dnl
565 m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
566 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
567 AC_SUBST([$1_TRUE])dnl
568 AC_SUBST([$1_FALSE])dnl
569 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
570 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
571 m4_define([_AM_COND_VALUE_$1], [$2])dnl
572 if $2; then
573 $1_TRUE=
574 $1_FALSE='#'
575 else
576 $1_TRUE='#'
577 $1_FALSE=
578 fi
579 AC_CONFIG_COMMANDS_PRE(
580 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
581 AC_MSG_ERROR([[conditional "$1" was never defined.
582 Usually this means the macro was only invoked conditionally.]])
583 fi])])
584
585 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
586 #
587 # This file is free software; the Free Software Foundation
588 # gives unlimited permission to copy and/or distribute it,
589 # with or without modifications, as long as this notice is preserved.
590
591
592 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
593 # written in clear, in which case automake, when reading aclocal.m4,
594 # will think it sees a *use*, and therefore will trigger all it's
595 # C support machinery. Also note that it means that autoscan, seeing
596 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
597
598
599 # _AM_DEPENDENCIES(NAME)
600 # ----------------------
601 # See how the compiler implements dependency checking.
602 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
603 # We try a few techniques and use that to set a single cache variable.
604 #
605 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
606 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
607 # dependency, and given that the user is not expected to run this macro,
608 # just rely on AC_PROG_CC.
609 AC_DEFUN([_AM_DEPENDENCIES],
610 [AC_REQUIRE([AM_SET_DEPDIR])dnl
611 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
612 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
613 AC_REQUIRE([AM_DEP_TRACK])dnl
614
615 m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
616 [$1], [CXX], [depcc="$CXX" am_compiler_list=],
617 [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
618 [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
619 [$1], [UPC], [depcc="$UPC" am_compiler_list=],
620 [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
621 [depcc="$$1" am_compiler_list=])
622
623 AC_CACHE_CHECK([dependency style of $depcc],
624 [am_cv_$1_dependencies_compiler_type],
625 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
626 # We make a subdir and do the tests there. Otherwise we can end up
627 # making bogus files that we don't know about and never remove. For
628 # instance it was reported that on HP-UX the gcc test will end up
629 # making a dummy file named 'D' -- because '-MD' means "put the output
630 # in D".
631 rm -rf conftest.dir
632 mkdir conftest.dir
633 # Copy depcomp to subdir because otherwise we won't find it if we're
634 # using a relative directory.
635 cp "$am_depcomp" conftest.dir
636 cd conftest.dir
637 # We will build objects and dependencies in a subdirectory because
638 # it helps to detect inapplicable dependency modes. For instance
639 # both Tru64's cc and ICC support -MD to output dependencies as a
640 # side effect of compilation, but ICC will put the dependencies in
641 # the current directory while Tru64 will put them in the object
642 # directory.
643 mkdir sub
644
645 am_cv_$1_dependencies_compiler_type=none
646 if test "$am_compiler_list" = ""; then
647 am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
648 fi
649 am__universal=false
650 m4_case([$1], [CC],
651 [case " $depcc " in #(
652 *\ -arch\ *\ -arch\ *) am__universal=true ;;
653 esac],
654 [CXX],
655 [case " $depcc " in #(
656 *\ -arch\ *\ -arch\ *) am__universal=true ;;
657 esac])
658
659 for depmode in $am_compiler_list; do
660 # Setup a source with many dependencies, because some compilers
661 # like to wrap large dependency lists on column 80 (with \), and
662 # we should not choose a depcomp mode which is confused by this.
663 #
664 # We need to recreate these files for each test, as the compiler may
665 # overwrite some of them when testing with obscure command lines.
666 # This happens at least with the AIX C compiler.
667 : > sub/conftest.c
668 for i in 1 2 3 4 5 6; do
669 echo '#include "conftst'$i'.h"' >> sub/conftest.c
670 # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
671 # Solaris 10 /bin/sh.
672 echo '/* dummy */' > sub/conftst$i.h
673 done
674 echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
675
676 # We check with '-c' and '-o' for the sake of the "dashmstdout"
677 # mode. It turns out that the SunPro C++ compiler does not properly
678 # handle '-M -o', and we need to detect this. Also, some Intel
679 # versions had trouble with output in subdirs.
680 am__obj=sub/conftest.${OBJEXT-o}
681 am__minus_obj="-o $am__obj"
682 case $depmode in
683 gcc)
684 # This depmode causes a compiler race in universal mode.
685 test "$am__universal" = false || continue
686 ;;
687 nosideeffect)
688 # After this tag, mechanisms are not by side-effect, so they'll
689 # only be used when explicitly requested.
690 if test "x$enable_dependency_tracking" = xyes; then
691 continue
692 else
693 break
694 fi
695 ;;
696 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
697 # This compiler won't grok '-c -o', but also, the minuso test has
698 # not run yet. These depmodes are late enough in the game, and
699 # so weak that their functioning should not be impacted.
700 am__obj=conftest.${OBJEXT-o}
701 am__minus_obj=
702 ;;
703 none) break ;;
704 esac
705 if depmode=$depmode \
706 source=sub/conftest.c object=$am__obj \
707 depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
708 $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
709 >/dev/null 2>conftest.err &&
710 grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
711 grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
712 grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
713 ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
714 # icc doesn't choke on unknown options, it will just issue warnings
715 # or remarks (even with -Werror). So we grep stderr for any message
716 # that says an option was ignored or not supported.
717 # When given -MP, icc 7.0 and 7.1 complain thusly:
718 # icc: Command line warning: ignoring option '-M'; no argument required
719 # The diagnosis changed in icc 8.0:
720 # icc: Command line remark: option '-MP' not supported
721 if (grep 'ignoring option' conftest.err ||
722 grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
723 am_cv_$1_dependencies_compiler_type=$depmode
724 break
725 fi
726 fi
727 done
728
729 cd ..
730 rm -rf conftest.dir
731 else
732 am_cv_$1_dependencies_compiler_type=none
733 fi
734 ])
735 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
736 AM_CONDITIONAL([am__fastdep$1], [
737 test "x$enable_dependency_tracking" != xno \
738 && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
739 ])
740
741
742 # AM_SET_DEPDIR
743 # -------------
744 # Choose a directory name for dependency files.
745 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
746 AC_DEFUN([AM_SET_DEPDIR],
747 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
748 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
749 ])
750
751
752 # AM_DEP_TRACK
753 # ------------
754 AC_DEFUN([AM_DEP_TRACK],
755 [AC_ARG_ENABLE([dependency-tracking], [dnl
756 AS_HELP_STRING(
757 [--enable-dependency-tracking],
758 [do not reject slow dependency extractors])
759 AS_HELP_STRING(
760 [--disable-dependency-tracking],
761 [speeds up one-time build])])
762 if test "x$enable_dependency_tracking" != xno; then
763 am_depcomp="$ac_aux_dir/depcomp"
764 AMDEPBACKSLASH='\'
765 am__nodep='_no'
766 fi
767 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
768 AC_SUBST([AMDEPBACKSLASH])dnl
769 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
770 AC_SUBST([am__nodep])dnl
771 _AM_SUBST_NOTMAKE([am__nodep])dnl
772 ])
773
774 # Generate code to set up dependency tracking. -*- Autoconf -*-
775
776 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
777 #
778 # This file is free software; the Free Software Foundation
779 # gives unlimited permission to copy and/or distribute it,
780 # with or without modifications, as long as this notice is preserved.
781
782 # _AM_OUTPUT_DEPENDENCY_COMMANDS
783 # ------------------------------
784 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
785 [{
786 # Older Autoconf quotes --file arguments for eval, but not when files
787 # are listed without --file. Let's play safe and only enable the eval
788 # if we detect the quoting.
789 # TODO: see whether this extra hack can be removed once we start
790 # requiring Autoconf 2.70 or later.
791 AS_CASE([$CONFIG_FILES],
792 [*\'*], [eval set x "$CONFIG_FILES"],
793 [*], [set x $CONFIG_FILES])
794 shift
795 # Used to flag and report bootstrapping failures.
796 am_rc=0
797 for am_mf
798 do
799 # Strip MF so we end up with the name of the file.
800 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
801 # Check whether this is an Automake generated Makefile which includes
802 # dependency-tracking related rules and includes.
803 # Grep'ing the whole file directly is not great: AIX grep has a line
804 # limit of 2048, but all sed's we know have understand at least 4000.
805 sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
806 || continue
807 am_dirpart=`AS_DIRNAME(["$am_mf"])`
808 am_filepart=`AS_BASENAME(["$am_mf"])`
809 AM_RUN_LOG([cd "$am_dirpart" \
810 && sed -e '/# am--include-marker/d' "$am_filepart" \
811 | $MAKE -f - am--depfiles]) || am_rc=$?
812 done
813 if test $am_rc -ne 0; then
814 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
815 for automatic dependency tracking. If GNU make was not used, consider
816 re-running the configure script with MAKE="gmake" (or whatever is
817 necessary). You can also try re-running configure with the
818 '--disable-dependency-tracking' option to at least be able to build
819 the package (albeit without support for automatic dependency tracking).])
820 fi
821 AS_UNSET([am_dirpart])
822 AS_UNSET([am_filepart])
823 AS_UNSET([am_mf])
824 AS_UNSET([am_rc])
825 rm -f conftest-deps.mk
826 }
827 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
828
829
830 # AM_OUTPUT_DEPENDENCY_COMMANDS
831 # -----------------------------
832 # This macro should only be invoked once -- use via AC_REQUIRE.
833 #
834 # This code is only required when automatic dependency tracking is enabled.
835 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
836 # order to bootstrap the dependency handling code.
837 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
838 [AC_CONFIG_COMMANDS([depfiles],
839 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
840 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
841
842 # Do all the work for Automake. -*- Autoconf -*-
843
844 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
845 #
846 # This file is free software; the Free Software Foundation
847 # gives unlimited permission to copy and/or distribute it,
848 # with or without modifications, as long as this notice is preserved.
849
850 # This macro actually does too much. Some checks are only needed if
851 # your package does certain things. But this isn't really a big deal.
852
853 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
854 m4_define([AC_PROG_CC],
855 m4_defn([AC_PROG_CC])
856 [_AM_PROG_CC_C_O
857 ])
858
859 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
860 # AM_INIT_AUTOMAKE([OPTIONS])
861 # -----------------------------------------------
862 # The call with PACKAGE and VERSION arguments is the old style
863 # call (pre autoconf-2.50), which is being phased out. PACKAGE
864 # and VERSION should now be passed to AC_INIT and removed from
865 # the call to AM_INIT_AUTOMAKE.
866 # We support both call styles for the transition. After
867 # the next Automake release, Autoconf can make the AC_INIT
868 # arguments mandatory, and then we can depend on a new Autoconf
869 # release and drop the old call support.
870 AC_DEFUN([AM_INIT_AUTOMAKE],
871 [AC_PREREQ([2.65])dnl
872 dnl Autoconf wants to disallow AM_ names. We explicitly allow
873 dnl the ones we care about.
874 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
875 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
876 AC_REQUIRE([AC_PROG_INSTALL])dnl
877 if test "`cd $srcdir && pwd`" != "`pwd`"; then
878 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
879 # is not polluted with repeated "-I."
880 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
881 # test to see if srcdir already configured
882 if test -f $srcdir/config.status; then
883 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
884 fi
885 fi
886
887 # test whether we have cygpath
888 if test -z "$CYGPATH_W"; then
889 if (cygpath --version) >/dev/null 2>/dev/null; then
890 CYGPATH_W='cygpath -w'
891 else
892 CYGPATH_W=echo
893 fi
894 fi
895 AC_SUBST([CYGPATH_W])
896
897 # Define the identity of the package.
898 dnl Distinguish between old-style and new-style calls.
899 m4_ifval([$2],
900 [AC_DIAGNOSE([obsolete],
901 [$0: two- and three-arguments forms are deprecated.])
902 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
903 AC_SUBST([PACKAGE], [$1])dnl
904 AC_SUBST([VERSION], [$2])],
905 [_AM_SET_OPTIONS([$1])dnl
906 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
907 m4_if(
908 m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
909 [ok:ok],,
910 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
911 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
912 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
913
914 _AM_IF_OPTION([no-define],,
915 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
916 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
917
918 # Some tools Automake needs.
919 AC_REQUIRE([AM_SANITY_CHECK])dnl
920 AC_REQUIRE([AC_ARG_PROGRAM])dnl
921 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
922 AM_MISSING_PROG([AUTOCONF], [autoconf])
923 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
924 AM_MISSING_PROG([AUTOHEADER], [autoheader])
925 AM_MISSING_PROG([MAKEINFO], [makeinfo])
926 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
927 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
928 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
929 # For better backward compatibility. To be removed once Automake 1.9.x
930 # dies out for good. For more background, see:
931 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
932 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
933 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
934 # We need awk for the "check" target (and possibly the TAP driver). The
935 # system "awk" is bad on some platforms.
936 AC_REQUIRE([AC_PROG_AWK])dnl
937 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
938 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
939 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
940 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
941 [_AM_PROG_TAR([v7])])])
942 _AM_IF_OPTION([no-dependencies],,
943 [AC_PROVIDE_IFELSE([AC_PROG_CC],
944 [_AM_DEPENDENCIES([CC])],
945 [m4_define([AC_PROG_CC],
946 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
947 AC_PROVIDE_IFELSE([AC_PROG_CXX],
948 [_AM_DEPENDENCIES([CXX])],
949 [m4_define([AC_PROG_CXX],
950 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
951 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
952 [_AM_DEPENDENCIES([OBJC])],
953 [m4_define([AC_PROG_OBJC],
954 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
955 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
956 [_AM_DEPENDENCIES([OBJCXX])],
957 [m4_define([AC_PROG_OBJCXX],
958 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
959 ])
960 AC_REQUIRE([AM_SILENT_RULES])dnl
961 dnl The testsuite driver may need to know about EXEEXT, so add the
962 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
963 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
964 AC_CONFIG_COMMANDS_PRE(dnl
965 [m4_provide_if([_AM_COMPILER_EXEEXT],
966 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
967
968 # POSIX will say in a future version that running "rm -f" with no argument
969 # is OK; and we want to be able to make that assumption in our Makefile
970 # recipes. So use an aggressive probe to check that the usage we want is
971 # actually supported "in the wild" to an acceptable degree.
972 # See automake bug#10828.
973 # To make any issue more visible, cause the running configure to be aborted
974 # by default if the 'rm' program in use doesn't match our expectations; the
975 # user can still override this though.
976 if rm -f && rm -fr && rm -rf; then : OK; else
977 cat >&2 <<'END'
978 Oops!
979
980 Your 'rm' program seems unable to run without file operands specified
981 on the command line, even when the '-f' option is present. This is contrary
982 to the behaviour of most rm programs out there, and not conforming with
983 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
984
985 Please tell bug-automake@gnu.org about your system, including the value
986 of your $PATH and any error possibly output before this message. This
987 can help us improve future automake versions.
988
989 END
990 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
991 echo 'Configuration will proceed anyway, since you have set the' >&2
992 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
993 echo >&2
994 else
995 cat >&2 <<'END'
996 Aborting the configuration process, to ensure you take notice of the issue.
997
998 You can download and install GNU coreutils to get an 'rm' implementation
999 that behaves properly: <https://www.gnu.org/software/coreutils/>.
1000
1001 If you want to complete the configuration process using your problematic
1002 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
1003 to "yes", and re-run configure.
1004
1005 END
1006 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
1007 fi
1008 fi
1009 dnl The trailing newline in this macro's definition is deliberate, for
1010 dnl backward compatibility and to allow trailing 'dnl'-style comments
1011 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
1012 ])
1013
1014 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
1015 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
1016 dnl mangled by Autoconf and run in a shell conditional statement.
1017 m4_define([_AC_COMPILER_EXEEXT],
1018 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
1019
1020 # When config.status generates a header, we must update the stamp-h file.
1021 # This file resides in the same directory as the config header
1022 # that is generated. The stamp files are numbered to have different names.
1023
1024 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
1025 # loop where config.status creates the headers, so we can generate
1026 # our stamp files there.
1027 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
1028 [# Compute $1's index in $config_headers.
1029 _am_arg=$1
1030 _am_stamp_count=1
1031 for _am_header in $config_headers :; do
1032 case $_am_header in
1033 $_am_arg | $_am_arg:* )
1034 break ;;
1035 * )
1036 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
1037 esac
1038 done
1039 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
1040
1041 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1042 #
1043 # This file is free software; the Free Software Foundation
1044 # gives unlimited permission to copy and/or distribute it,
1045 # with or without modifications, as long as this notice is preserved.
1046
1047 # AM_PROG_INSTALL_SH
1048 # ------------------
1049 # Define $install_sh.
1050 AC_DEFUN([AM_PROG_INSTALL_SH],
1051 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1052 if test x"${install_sh+set}" != xset; then
1053 case $am_aux_dir in
1054 *\ * | *\ *)
1055 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
1056 *)
1057 install_sh="\${SHELL} $am_aux_dir/install-sh"
1058 esac
1059 fi
1060 AC_SUBST([install_sh])])
1061
1062 # Copyright (C) 2003-2020 Free Software Foundation, Inc.
1063 #
1064 # This file is free software; the Free Software Foundation
1065 # gives unlimited permission to copy and/or distribute it,
1066 # with or without modifications, as long as this notice is preserved.
1067
1068 # Check whether the underlying file-system supports filenames
1069 # with a leading dot. For instance MS-DOS doesn't.
1070 AC_DEFUN([AM_SET_LEADING_DOT],
1071 [rm -rf .tst 2>/dev/null
1072 mkdir .tst 2>/dev/null
1073 if test -d .tst; then
1074 am__leading_dot=.
1075 else
1076 am__leading_dot=_
1077 fi
1078 rmdir .tst 2>/dev/null
1079 AC_SUBST([am__leading_dot])])
1080
1081 # Check to see how 'make' treats includes. -*- Autoconf -*-
1082
1083 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1084 #
1085 # This file is free software; the Free Software Foundation
1086 # gives unlimited permission to copy and/or distribute it,
1087 # with or without modifications, as long as this notice is preserved.
1088
1089 # AM_MAKE_INCLUDE()
1090 # -----------------
1091 # Check whether make has an 'include' directive that can support all
1092 # the idioms we need for our automatic dependency tracking code.
1093 AC_DEFUN([AM_MAKE_INCLUDE],
1094 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
1095 cat > confinc.mk << 'END'
1096 am__doit:
1097 @echo this is the am__doit target >confinc.out
1098 .PHONY: am__doit
1099 END
1100 am__include="#"
1101 am__quote=
1102 # BSD make does it like this.
1103 echo '.include "confinc.mk" # ignored' > confmf.BSD
1104 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
1105 echo 'include confinc.mk # ignored' > confmf.GNU
1106 _am_result=no
1107 for s in GNU BSD; do
1108 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
1109 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
1110 ['0:this is the am__doit target'],
1111 [AS_CASE([$s],
1112 [BSD], [am__include='.include' am__quote='"'],
1113 [am__include='include' am__quote=''])])
1114 if test "$am__include" != "#"; then
1115 _am_result="yes ($s style)"
1116 break
1117 fi
1118 done
1119 rm -f confinc.* confmf.*
1120 AC_MSG_RESULT([${_am_result}])
1121 AC_SUBST([am__include])])
1122 AC_SUBST([am__quote])])
1123
1124 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
1125
1126 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
1127 #
1128 # This file is free software; the Free Software Foundation
1129 # gives unlimited permission to copy and/or distribute it,
1130 # with or without modifications, as long as this notice is preserved.
1131
1132 # AM_MISSING_PROG(NAME, PROGRAM)
1133 # ------------------------------
1134 AC_DEFUN([AM_MISSING_PROG],
1135 [AC_REQUIRE([AM_MISSING_HAS_RUN])
1136 $1=${$1-"${am_missing_run}$2"}
1137 AC_SUBST($1)])
1138
1139 # AM_MISSING_HAS_RUN
1140 # ------------------
1141 # Define MISSING if not defined so far and test if it is modern enough.
1142 # If it is, set am_missing_run to use it, otherwise, to nothing.
1143 AC_DEFUN([AM_MISSING_HAS_RUN],
1144 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1145 AC_REQUIRE_AUX_FILE([missing])dnl
1146 if test x"${MISSING+set}" != xset; then
1147 MISSING="\${SHELL} '$am_aux_dir/missing'"
1148 fi
1149 # Use eval to expand $SHELL
1150 if eval "$MISSING --is-lightweight"; then
1151 am_missing_run="$MISSING "
1152 else
1153 am_missing_run=
1154 AC_MSG_WARN(['missing' script is too old or missing])
1155 fi
1156 ])
1157
1158 # Helper functions for option handling. -*- Autoconf -*-
1159
1160 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1161 #
1162 # This file is free software; the Free Software Foundation
1163 # gives unlimited permission to copy and/or distribute it,
1164 # with or without modifications, as long as this notice is preserved.
1165
1166 # _AM_MANGLE_OPTION(NAME)
1167 # -----------------------
1168 AC_DEFUN([_AM_MANGLE_OPTION],
1169 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1170
1171 # _AM_SET_OPTION(NAME)
1172 # --------------------
1173 # Set option NAME. Presently that only means defining a flag for this option.
1174 AC_DEFUN([_AM_SET_OPTION],
1175 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1176
1177 # _AM_SET_OPTIONS(OPTIONS)
1178 # ------------------------
1179 # OPTIONS is a space-separated list of Automake options.
1180 AC_DEFUN([_AM_SET_OPTIONS],
1181 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1182
1183 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1184 # -------------------------------------------
1185 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1186 AC_DEFUN([_AM_IF_OPTION],
1187 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1188
1189 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
1190 #
1191 # This file is free software; the Free Software Foundation
1192 # gives unlimited permission to copy and/or distribute it,
1193 # with or without modifications, as long as this notice is preserved.
1194
1195 # _AM_PROG_CC_C_O
1196 # ---------------
1197 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
1198 # to automatically call this.
1199 AC_DEFUN([_AM_PROG_CC_C_O],
1200 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1201 AC_REQUIRE_AUX_FILE([compile])dnl
1202 AC_LANG_PUSH([C])dnl
1203 AC_CACHE_CHECK(
1204 [whether $CC understands -c and -o together],
1205 [am_cv_prog_cc_c_o],
1206 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
1207 # Make sure it works both with $CC and with simple cc.
1208 # Following AC_PROG_CC_C_O, we do the test twice because some
1209 # compilers refuse to overwrite an existing .o file with -o,
1210 # though they will create one.
1211 am_cv_prog_cc_c_o=yes
1212 for am_i in 1 2; do
1213 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
1214 && test -f conftest2.$ac_objext; then
1215 : OK
1216 else
1217 am_cv_prog_cc_c_o=no
1218 break
1219 fi
1220 done
1221 rm -f core conftest*
1222 unset am_i])
1223 if test "$am_cv_prog_cc_c_o" != yes; then
1224 # Losing compiler, so override with the script.
1225 # FIXME: It is wrong to rewrite CC.
1226 # But if we don't then we get into trouble of one sort or another.
1227 # A longer-term fix would be to have automake use am__CC in this case,
1228 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
1229 CC="$am_aux_dir/compile $CC"
1230 fi
1231 AC_LANG_POP([C])])
1232
1233 # For backward compatibility.
1234 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1235
1236 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1237 #
1238 # This file is free software; the Free Software Foundation
1239 # gives unlimited permission to copy and/or distribute it,
1240 # with or without modifications, as long as this notice is preserved.
1241
1242 # AM_RUN_LOG(COMMAND)
1243 # -------------------
1244 # Run COMMAND, save the exit status in ac_status, and log it.
1245 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1246 AC_DEFUN([AM_RUN_LOG],
1247 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1248 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1249 ac_status=$?
1250 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1251 (exit $ac_status); }])
1252
1253 # Check to make sure that the build environment is sane. -*- Autoconf -*-
1254
1255 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
1256 #
1257 # This file is free software; the Free Software Foundation
1258 # gives unlimited permission to copy and/or distribute it,
1259 # with or without modifications, as long as this notice is preserved.
1260
1261 # AM_SANITY_CHECK
1262 # ---------------
1263 AC_DEFUN([AM_SANITY_CHECK],
1264 [AC_MSG_CHECKING([whether build environment is sane])
1265 # Reject unsafe characters in $srcdir or the absolute working directory
1266 # name. Accept space and tab only in the latter.
1267 am_lf='
1268 '
1269 case `pwd` in
1270 *[[\\\"\#\$\&\'\`$am_lf]]*)
1271 AC_MSG_ERROR([unsafe absolute working directory name]);;
1272 esac
1273 case $srcdir in
1274 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
1275 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1276 esac
1277
1278 # Do 'set' in a subshell so we don't clobber the current shell's
1279 # arguments. Must try -L first in case configure is actually a
1280 # symlink; some systems play weird games with the mod time of symlinks
1281 # (eg FreeBSD returns the mod time of the symlink's containing
1282 # directory).
1283 if (
1284 am_has_slept=no
1285 for am_try in 1 2; do
1286 echo "timestamp, slept: $am_has_slept" > conftest.file
1287 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1288 if test "$[*]" = "X"; then
1289 # -L didn't work.
1290 set X `ls -t "$srcdir/configure" conftest.file`
1291 fi
1292 if test "$[*]" != "X $srcdir/configure conftest.file" \
1293 && test "$[*]" != "X conftest.file $srcdir/configure"; then
1294
1295 # If neither matched, then we have a broken ls. This can happen
1296 # if, for instance, CONFIG_SHELL is bash and it inherits a
1297 # broken ls alias from the environment. This has actually
1298 # happened. Such a system could not be considered "sane".
1299 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
1300 alias in your environment])
1301 fi
1302 if test "$[2]" = conftest.file || test $am_try -eq 2; then
1303 break
1304 fi
1305 # Just in case.
1306 sleep 1
1307 am_has_slept=yes
1308 done
1309 test "$[2]" = conftest.file
1310 )
1311 then
1312 # Ok.
1313 :
1314 else
1315 AC_MSG_ERROR([newly created file is older than distributed files!
1316 Check your system clock])
1317 fi
1318 AC_MSG_RESULT([yes])
1319 # If we didn't sleep, we still need to ensure time stamps of config.status and
1320 # generated files are strictly newer.
1321 am_sleep_pid=
1322 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1323 ( sleep 1 ) &
1324 am_sleep_pid=$!
1325 fi
1326 AC_CONFIG_COMMANDS_PRE(
1327 [AC_MSG_CHECKING([that generated files are newer than configure])
1328 if test -n "$am_sleep_pid"; then
1329 # Hide warnings about reused PIDs.
1330 wait $am_sleep_pid 2>/dev/null
1331 fi
1332 AC_MSG_RESULT([done])])
1333 rm -f conftest.file
1334 ])
1335
1336 # Copyright (C) 2009-2020 Free Software Foundation, Inc.
1337 #
1338 # This file is free software; the Free Software Foundation
1339 # gives unlimited permission to copy and/or distribute it,
1340 # with or without modifications, as long as this notice is preserved.
1341
1342 # AM_SILENT_RULES([DEFAULT])
1343 # --------------------------
1344 # Enable less verbose build rules; with the default set to DEFAULT
1345 # ("yes" being less verbose, "no" or empty being verbose).
1346 AC_DEFUN([AM_SILENT_RULES],
1347 [AC_ARG_ENABLE([silent-rules], [dnl
1348 AS_HELP_STRING(
1349 [--enable-silent-rules],
1350 [less verbose build output (undo: "make V=1")])
1351 AS_HELP_STRING(
1352 [--disable-silent-rules],
1353 [verbose build output (undo: "make V=0")])dnl
1354 ])
1355 case $enable_silent_rules in @%:@ (((
1356 yes) AM_DEFAULT_VERBOSITY=0;;
1357 no) AM_DEFAULT_VERBOSITY=1;;
1358 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1359 esac
1360 dnl
1361 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1362 dnl do not support nested variable expansions.
1363 dnl See automake bug#9928 and bug#10237.
1364 am_make=${MAKE-make}
1365 AC_CACHE_CHECK([whether $am_make supports nested variables],
1366 [am_cv_make_support_nested_variables],
1367 [if AS_ECHO([['TRUE=$(BAR$(V))
1368 BAR0=false
1369 BAR1=true
1370 V=1
1371 am__doit:
1372 @$(TRUE)
1373 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1374 am_cv_make_support_nested_variables=yes
1375 else
1376 am_cv_make_support_nested_variables=no
1377 fi])
1378 if test $am_cv_make_support_nested_variables = yes; then
1379 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1380 AM_V='$(V)'
1381 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1382 else
1383 AM_V=$AM_DEFAULT_VERBOSITY
1384 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1385 fi
1386 AC_SUBST([AM_V])dnl
1387 AM_SUBST_NOTMAKE([AM_V])dnl
1388 AC_SUBST([AM_DEFAULT_V])dnl
1389 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1390 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1391 AM_BACKSLASH='\'
1392 AC_SUBST([AM_BACKSLASH])dnl
1393 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1394 ])
1395
1396 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1397 #
1398 # This file is free software; the Free Software Foundation
1399 # gives unlimited permission to copy and/or distribute it,
1400 # with or without modifications, as long as this notice is preserved.
1401
1402 # AM_PROG_INSTALL_STRIP
1403 # ---------------------
1404 # One issue with vendor 'install' (even GNU) is that you can't
1405 # specify the program used to strip binaries. This is especially
1406 # annoying in cross-compiling environments, where the build's strip
1407 # is unlikely to handle the host's binaries.
1408 # Fortunately install-sh will honor a STRIPPROG variable, so we
1409 # always use install-sh in "make install-strip", and initialize
1410 # STRIPPROG with the value of the STRIP variable (set by the user).
1411 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1412 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1413 # Installed binaries are usually stripped using 'strip' when the user
1414 # run "make install-strip". However 'strip' might not be the right
1415 # tool to use in cross-compilation environments, therefore Automake
1416 # will honor the 'STRIP' environment variable to overrule this program.
1417 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1418 if test "$cross_compiling" != no; then
1419 AC_CHECK_TOOL([STRIP], [strip], :)
1420 fi
1421 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1422 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1423
1424 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
1425 #
1426 # This file is free software; the Free Software Foundation
1427 # gives unlimited permission to copy and/or distribute it,
1428 # with or without modifications, as long as this notice is preserved.
1429
1430 # _AM_SUBST_NOTMAKE(VARIABLE)
1431 # ---------------------------
1432 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1433 # This macro is traced by Automake.
1434 AC_DEFUN([_AM_SUBST_NOTMAKE])
1435
1436 # AM_SUBST_NOTMAKE(VARIABLE)
1437 # --------------------------
1438 # Public sister of _AM_SUBST_NOTMAKE.
1439 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1440
1441 # Check how to create a tarball. -*- Autoconf -*-
1442
1443 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
1444 #
1445 # This file is free software; the Free Software Foundation
1446 # gives unlimited permission to copy and/or distribute it,
1447 # with or without modifications, as long as this notice is preserved.
1448
1449 # _AM_PROG_TAR(FORMAT)
1450 # --------------------
1451 # Check how to create a tarball in format FORMAT.
1452 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1453 #
1454 # Substitute a variable $(am__tar) that is a command
1455 # writing to stdout a FORMAT-tarball containing the directory
1456 # $tardir.
1457 # tardir=directory && $(am__tar) > result.tar
1458 #
1459 # Substitute a variable $(am__untar) that extract such
1460 # a tarball read from stdin.
1461 # $(am__untar) < result.tar
1462 #
1463 AC_DEFUN([_AM_PROG_TAR],
1464 [# Always define AMTAR for backward compatibility. Yes, it's still used
1465 # in the wild :-( We should find a proper way to deprecate it ...
1466 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1467
1468 # We'll loop over all known methods to create a tar archive until one works.
1469 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1470
1471 m4_if([$1], [v7],
1472 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1473
1474 [m4_case([$1],
1475 [ustar],
1476 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1477 # There is notably a 21 bits limit for the UID and the GID. In fact,
1478 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1479 # and bug#13588).
1480 am_max_uid=2097151 # 2^21 - 1
1481 am_max_gid=$am_max_uid
1482 # The $UID and $GID variables are not portable, so we need to resort
1483 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1484 # below are definitely unexpected, so allow the users to see them
1485 # (that is, avoid stderr redirection).
1486 am_uid=`id -u || echo unknown`
1487 am_gid=`id -g || echo unknown`
1488 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1489 if test $am_uid -le $am_max_uid; then
1490 AC_MSG_RESULT([yes])
1491 else
1492 AC_MSG_RESULT([no])
1493 _am_tools=none
1494 fi
1495 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1496 if test $am_gid -le $am_max_gid; then
1497 AC_MSG_RESULT([yes])
1498 else
1499 AC_MSG_RESULT([no])
1500 _am_tools=none
1501 fi],
1502
1503 [pax],
1504 [],
1505
1506 [m4_fatal([Unknown tar format])])
1507
1508 AC_MSG_CHECKING([how to create a $1 tar archive])
1509
1510 # Go ahead even if we have the value already cached. We do so because we
1511 # need to set the values for the 'am__tar' and 'am__untar' variables.
1512 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1513
1514 for _am_tool in $_am_tools; do
1515 case $_am_tool in
1516 gnutar)
1517 for _am_tar in tar gnutar gtar; do
1518 AM_RUN_LOG([$_am_tar --version]) && break
1519 done
1520 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1521 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1522 am__untar="$_am_tar -xf -"
1523 ;;
1524 plaintar)
1525 # Must skip GNU tar: if it does not support --format= it doesn't create
1526 # ustar tarball either.
1527 (tar --version) >/dev/null 2>&1 && continue
1528 am__tar='tar chf - "$$tardir"'
1529 am__tar_='tar chf - "$tardir"'
1530 am__untar='tar xf -'
1531 ;;
1532 pax)
1533 am__tar='pax -L -x $1 -w "$$tardir"'
1534 am__tar_='pax -L -x $1 -w "$tardir"'
1535 am__untar='pax -r'
1536 ;;
1537 cpio)
1538 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1539 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1540 am__untar='cpio -i -H $1 -d'
1541 ;;
1542 none)
1543 am__tar=false
1544 am__tar_=false
1545 am__untar=false
1546 ;;
1547 esac
1548
1549 # If the value was cached, stop now. We just wanted to have am__tar
1550 # and am__untar set.
1551 test -n "${am_cv_prog_tar_$1}" && break
1552
1553 # tar/untar a dummy directory, and stop if the command works.
1554 rm -rf conftest.dir
1555 mkdir conftest.dir
1556 echo GrepMe > conftest.dir/file
1557 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1558 rm -rf conftest.dir
1559 if test -s conftest.tar; then
1560 AM_RUN_LOG([$am__untar <conftest.tar])
1561 AM_RUN_LOG([cat conftest.dir/file])
1562 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1563 fi
1564 done
1565 rm -rf conftest.dir
1566
1567 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1568 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1569
1570 AC_SUBST([am__tar])
1571 AC_SUBST([am__untar])
1572 ]) # _AM_PROG_TAR
1573
1574 m4_include([gphoto-m4/gp-byteorder.m4])
1575 m4_include([gphoto-m4/gp-camlibs.m4])
1576 m4_include([gphoto-m4/gp-check-doxygen.m4])
1577 m4_include([gphoto-m4/gp-check-library.m4])
1578 m4_include([gphoto-m4/gp-check-shell-environment.m4])
1579 m4_include([gphoto-m4/gp-config-msg.m4])
1580 m4_include([gphoto-m4/gp-documentation.m4])
1581 m4_include([gphoto-m4/gp-gettext-hack.m4])
1582 m4_include([gphoto-m4/gp-internal-docs.m4])
1583 m4_include([gphoto-m4/gp-libltdl.m4])
1584 m4_include([gphoto-m4/gp-packaging.m4])
1585 m4_include([gphoto-m4/gp-pedantic-compiler-flags.m4])
1586 m4_include([gphoto-m4/gp-progs.m4])
1587 m4_include([gphoto-m4/gp-references.m4])
1588 m4_include([gphoto-m4/gp-set.m4])
1589 m4_include([gphoto-m4/gp-sleep.m4])
1590 m4_include([gphoto-m4/gp-stdint.m4])
1591 m4_include([gphoto-m4/gp-udev.m4])
1592 m4_include([gphoto-m4/gp-va-copy.m4])
1593 m4_include([auto-m4/gettext.m4])
1594 m4_include([auto-m4/iconv.m4])
1595 m4_include([auto-m4/lib-ld.m4])
1596 m4_include([auto-m4/lib-link.m4])
1597 m4_include([auto-m4/lib-prefix.m4])
1598 m4_include([auto-m4/libtool.m4])
1599 m4_include([auto-m4/ltoptions.m4])
1600 m4_include([auto-m4/ltsugar.m4])
1601 m4_include([auto-m4/ltversion.m4])
1602 m4_include([auto-m4/lt~obsolete.m4])
1603 m4_include([auto-m4/nls.m4])
1604 m4_include([auto-m4/po.m4])
1605 m4_include([auto-m4/progtest.m4])