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1 # generated automatically by aclocal 1.16.2 -*- Autoconf -*-
3 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
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.
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.
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'.])])
23 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
24 # serial 11 (pkg-config-0.29.1)
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.
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 $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
69 ])dnl PKG_PREREQ
71 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
72 dnl ----------------------------------
73 dnl Since: 0.16
74 dnl
75 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
76 dnl first found in the path. Checks that the version of pkg-config found
77 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
78 dnl used since that's the first version where most current features of
79 dnl pkg-config existed.
80 AC_DEFUN([PKG_PROG_PKG_CONFIG],
81 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
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])
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 $_pkg_min_version; then
95 AC_MSG_RESULT([yes])
96 else
97 AC_MSG_RESULT([no])
98 PKG_CONFIG=""
99 fi
100 fi[]dnl
101 ])dnl PKG_PROG_PKG_CONFIG
103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
104 dnl -------------------------------------------------------------------
105 dnl Since: 0.18
106 dnl
107 dnl Check to see whether a particular set of modules exists. Similar to
108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
109 dnl
110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
111 dnl only at the first occurence in configure.ac, so if the first place
112 dnl it's called might be skipped (such as if it is within an "if", you
113 dnl have to call PKG_CHECK_EXISTS manually
114 AC_DEFUN([PKG_CHECK_EXISTS],
115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
116 if test -n "$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])
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
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
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
166 pkg_failed=no
167 AC_MSG_CHECKING([for $1])
169 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
170 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
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.])
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 "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
187 m4_default([$4], [AC_MSG_ERROR(
188 [Package requirements ($2) were not met:
190 $$1_PKG_ERRORS
192 Consider adjusting the PKG_CONFIG_PATH environment variable if you
193 installed software in a non-standard prefix.
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.
204 _PKG_TEXT
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 $3
213 fi[]dnl
214 ])dnl PKG_CHECK_MODULES
217 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
218 dnl [ACTION-IF-NOT-FOUND])
219 dnl ---------------------------------------------------------------------
220 dnl Since: 0.29
221 dnl
222 dnl Checks for existence of MODULES and gathers its build flags with
223 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
224 dnl and VARIABLE-PREFIX_LIBS from --libs.
225 dnl
226 dnl Note that if there is a possibility the first call to
227 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
228 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
229 dnl configure.ac.
230 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
231 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
232 _save_PKG_CONFIG=$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
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
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
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
293 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
294 AS_VAR_COPY([$1], [pkg_cv_][$1])
296 AS_VAR_IF([$1], [""], [$5], [$4])dnl
297 ])dnl PKG_CHECK_VAR
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]))
311 m4_pushdef([description],
312 [m4_default([$5], [build with ]with_arg[ support])])
314 m4_pushdef([def_arg], [m4_default([$6], [auto])])
315 m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
316 m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
318 m4_case(def_arg,
319 [yes],[m4_pushdef([with_without], [--without-]with_arg)],
320 [m4_pushdef([with_without],[--with-]with_arg)])
322 AC_ARG_WITH(with_arg,
323 AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
324 [AS_TR_SH([with_]with_arg)=def_arg])
326 AS_CASE([$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])])
332 m4_popdef([with_arg])
333 m4_popdef([description])
334 m4_popdef([def_arg])
336 ])dnl PKG_WITH_MODULES
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])
348 AM_CONDITIONAL([HAVE_][$1],
349 [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
350 ])dnl PKG_HAVE_WITH_MODULES
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],[$4])
363 AS_IF([test "$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
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.
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], [1.16.2], [],
383 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
384 ])
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], [])
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([1.16.2])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]))])
403 # AM_AUX_DIR_EXPAND -*- Autoconf -*-
405 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
406 #
407 # This file is free software; the Free Software Foundation
408 # gives unlimited permission to copy and/or distribute it,
409 # with or without modifications, as long as this notice is preserved.
411 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
412 # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
413 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
414 #
415 # Of course, Automake must honor this variable whenever it calls a
416 # tool from the auxiliary directory. The problem is that $srcdir (and
417 # therefore $ac_aux_dir as well) can be either absolute or relative,
418 # depending on how configure is run. This is pretty annoying, since
419 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
420 # source directory, any form will work fine, but in subdirectories a
421 # relative path needs to be adjusted first.
422 #
423 # $ac_aux_dir/missing
424 # fails when called from a subdirectory if $ac_aux_dir is relative
425 # $top_srcdir/$ac_aux_dir/missing
426 # fails if $ac_aux_dir is absolute,
427 # fails when called from a subdirectory in a VPATH build with
428 # a relative $ac_aux_dir
429 #
430 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
431 # are both prefixed by $srcdir. In an in-source build this is usually
432 # harmless because $srcdir is '.', but things will broke when you
433 # start a VPATH build or use an absolute $srcdir.
434 #
435 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
436 # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
437 # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
438 # and then we would define $MISSING as
439 # MISSING="\${SHELL} $am_aux_dir/missing"
440 # This will work as long as MISSING is not called from configure, because
441 # unfortunately $(top_srcdir) has no meaning in configure.
442 # However there are other variables, like CC, which are often used in
443 # configure, and could therefore not use this "fixed" $ac_aux_dir.
444 #
445 # Another solution, used here, is to always expand $ac_aux_dir to an
446 # absolute PATH. The drawback is that using absolute paths prevent a
447 # configured tree to be moved without reconfiguration.
449 AC_DEFUN([AM_AUX_DIR_EXPAND],
450 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
451 # Expand $ac_aux_dir to an absolute path.
452 am_aux_dir=`cd "$ac_aux_dir" && pwd`
453 ])
455 # AM_CONDITIONAL -*- Autoconf -*-
457 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
458 #
459 # This file is free software; the Free Software Foundation
460 # gives unlimited permission to copy and/or distribute it,
461 # with or without modifications, as long as this notice is preserved.
463 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
464 # -------------------------------------
465 # Define a conditional.
466 AC_DEFUN([AM_CONDITIONAL],
467 [AC_PREREQ([2.52])dnl
468 m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
469 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
470 AC_SUBST([$1_TRUE])dnl
471 AC_SUBST([$1_FALSE])dnl
472 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
473 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
474 m4_define([_AM_COND_VALUE_$1], [$2])dnl
475 if $2; then
476 $1_TRUE=
477 $1_FALSE='#'
478 else
479 $1_TRUE='#'
480 $1_FALSE=
481 fi
482 AC_CONFIG_COMMANDS_PRE(
483 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
484 AC_MSG_ERROR([[conditional "$1" was never defined.
485 Usually this means the macro was only invoked conditionally.]])
486 fi])])
488 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
489 #
490 # This file is free software; the Free Software Foundation
491 # gives unlimited permission to copy and/or distribute it,
492 # with or without modifications, as long as this notice is preserved.
495 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
496 # written in clear, in which case automake, when reading aclocal.m4,
497 # will think it sees a *use*, and therefore will trigger all it's
498 # C support machinery. Also note that it means that autoscan, seeing
499 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
502 # _AM_DEPENDENCIES(NAME)
503 # ----------------------
504 # See how the compiler implements dependency checking.
505 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
506 # We try a few techniques and use that to set a single cache variable.
507 #
508 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
509 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
510 # dependency, and given that the user is not expected to run this macro,
511 # just rely on AC_PROG_CC.
512 AC_DEFUN([_AM_DEPENDENCIES],
513 [AC_REQUIRE([AM_SET_DEPDIR])dnl
514 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
515 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
516 AC_REQUIRE([AM_DEP_TRACK])dnl
518 m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
519 [$1], [CXX], [depcc="$CXX" am_compiler_list=],
520 [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
521 [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
522 [$1], [UPC], [depcc="$UPC" am_compiler_list=],
523 [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
524 [depcc="$$1" am_compiler_list=])
526 AC_CACHE_CHECK([dependency style of $depcc],
527 [am_cv_$1_dependencies_compiler_type],
528 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
529 # We make a subdir and do the tests there. Otherwise we can end up
530 # making bogus files that we don't know about and never remove. For
531 # instance it was reported that on HP-UX the gcc test will end up
532 # making a dummy file named 'D' -- because '-MD' means "put the output
533 # in D".
534 rm -rf conftest.dir
535 mkdir conftest.dir
536 # Copy depcomp to subdir because otherwise we won't find it if we're
537 # using a relative directory.
538 cp "$am_depcomp" conftest.dir
539 cd conftest.dir
540 # We will build objects and dependencies in a subdirectory because
541 # it helps to detect inapplicable dependency modes. For instance
542 # both Tru64's cc and ICC support -MD to output dependencies as a
543 # side effect of compilation, but ICC will put the dependencies in
544 # the current directory while Tru64 will put them in the object
545 # directory.
546 mkdir sub
548 am_cv_$1_dependencies_compiler_type=none
549 if test "$am_compiler_list" = ""; then
550 am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
551 fi
552 am__universal=false
553 m4_case([$1], [CC],
554 [case " $depcc " in #(
555 *\ -arch\ *\ -arch\ *) am__universal=true ;;
556 esac],
557 [CXX],
558 [case " $depcc " in #(
559 *\ -arch\ *\ -arch\ *) am__universal=true ;;
560 esac])
562 for depmode in $am_compiler_list; do
563 # Setup a source with many dependencies, because some compilers
564 # like to wrap large dependency lists on column 80 (with \), and
565 # we should not choose a depcomp mode which is confused by this.
566 #
567 # We need to recreate these files for each test, as the compiler may
568 # overwrite some of them when testing with obscure command lines.
569 # This happens at least with the AIX C compiler.
570 : > sub/conftest.c
571 for i in 1 2 3 4 5 6; do
572 echo '#include "conftst'$i'.h"' >> sub/conftest.c
573 # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
574 # Solaris 10 /bin/sh.
575 echo '/* dummy */' > sub/conftst$i.h
576 done
577 echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
579 # We check with '-c' and '-o' for the sake of the "dashmstdout"
580 # mode. It turns out that the SunPro C++ compiler does not properly
581 # handle '-M -o', and we need to detect this. Also, some Intel
582 # versions had trouble with output in subdirs.
583 am__obj=sub/conftest.${OBJEXT-o}
584 am__minus_obj="-o $am__obj"
585 case $depmode in
586 gcc)
587 # This depmode causes a compiler race in universal mode.
588 test "$am__universal" = false || continue
589 ;;
590 nosideeffect)
591 # After this tag, mechanisms are not by side-effect, so they'll
592 # only be used when explicitly requested.
593 if test "x$enable_dependency_tracking" = xyes; then
594 continue
595 else
596 break
597 fi
598 ;;
599 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
600 # This compiler won't grok '-c -o', but also, the minuso test has
601 # not run yet. These depmodes are late enough in the game, and
602 # so weak that their functioning should not be impacted.
603 am__obj=conftest.${OBJEXT-o}
604 am__minus_obj=
605 ;;
606 none) break ;;
607 esac
608 if depmode=$depmode \
609 source=sub/conftest.c object=$am__obj \
610 depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
611 $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
612 >/dev/null 2>conftest.err &&
613 grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
614 grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
615 grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
616 ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
617 # icc doesn't choke on unknown options, it will just issue warnings
618 # or remarks (even with -Werror). So we grep stderr for any message
619 # that says an option was ignored or not supported.
620 # When given -MP, icc 7.0 and 7.1 complain thusly:
621 # icc: Command line warning: ignoring option '-M'; no argument required
622 # The diagnosis changed in icc 8.0:
623 # icc: Command line remark: option '-MP' not supported
624 if (grep 'ignoring option' conftest.err ||
625 grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
626 am_cv_$1_dependencies_compiler_type=$depmode
627 break
628 fi
629 fi
630 done
632 cd ..
633 rm -rf conftest.dir
634 else
635 am_cv_$1_dependencies_compiler_type=none
636 fi
637 ])
638 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
639 AM_CONDITIONAL([am__fastdep$1], [
640 test "x$enable_dependency_tracking" != xno \
641 && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
642 ])
645 # AM_SET_DEPDIR
646 # -------------
647 # Choose a directory name for dependency files.
648 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
649 AC_DEFUN([AM_SET_DEPDIR],
650 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
651 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
652 ])
655 # AM_DEP_TRACK
656 # ------------
657 AC_DEFUN([AM_DEP_TRACK],
658 [AC_ARG_ENABLE([dependency-tracking], [dnl
659 AS_HELP_STRING(
660 [--enable-dependency-tracking],
661 [do not reject slow dependency extractors])
662 AS_HELP_STRING(
663 [--disable-dependency-tracking],
664 [speeds up one-time build])])
665 if test "x$enable_dependency_tracking" != xno; then
666 am_depcomp="$ac_aux_dir/depcomp"
667 AMDEPBACKSLASH='\'
668 am__nodep='_no'
669 fi
670 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
671 AC_SUBST([AMDEPBACKSLASH])dnl
672 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
673 AC_SUBST([am__nodep])dnl
674 _AM_SUBST_NOTMAKE([am__nodep])dnl
675 ])
677 # Generate code to set up dependency tracking. -*- Autoconf -*-
679 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
680 #
681 # This file is free software; the Free Software Foundation
682 # gives unlimited permission to copy and/or distribute it,
683 # with or without modifications, as long as this notice is preserved.
685 # _AM_OUTPUT_DEPENDENCY_COMMANDS
686 # ------------------------------
687 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
688 [{
689 # Older Autoconf quotes --file arguments for eval, but not when files
690 # are listed without --file. Let's play safe and only enable the eval
691 # if we detect the quoting.
692 # TODO: see whether this extra hack can be removed once we start
693 # requiring Autoconf 2.70 or later.
694 AS_CASE([$CONFIG_FILES],
695 [*\'*], [eval set x "$CONFIG_FILES"],
696 [*], [set x $CONFIG_FILES])
697 shift
698 # Used to flag and report bootstrapping failures.
699 am_rc=0
700 for am_mf
701 do
702 # Strip MF so we end up with the name of the file.
703 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
704 # Check whether this is an Automake generated Makefile which includes
705 # dependency-tracking related rules and includes.
706 # Grep'ing the whole file directly is not great: AIX grep has a line
707 # limit of 2048, but all sed's we know have understand at least 4000.
708 sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
709 || continue
710 am_dirpart=`AS_DIRNAME(["$am_mf"])`
711 am_filepart=`AS_BASENAME(["$am_mf"])`
712 AM_RUN_LOG([cd "$am_dirpart" \
713 && sed -e '/# am--include-marker/d' "$am_filepart" \
714 | $MAKE -f - am--depfiles]) || am_rc=$?
715 done
716 if test $am_rc -ne 0; then
717 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
718 for automatic dependency tracking. If GNU make was not used, consider
719 re-running the configure script with MAKE="gmake" (or whatever is
720 necessary). You can also try re-running configure with the
721 '--disable-dependency-tracking' option to at least be able to build
722 the package (albeit without support for automatic dependency tracking).])
723 fi
724 AS_UNSET([am_dirpart])
725 AS_UNSET([am_filepart])
726 AS_UNSET([am_mf])
727 AS_UNSET([am_rc])
728 rm -f conftest-deps.mk
729 }
730 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
733 # AM_OUTPUT_DEPENDENCY_COMMANDS
734 # -----------------------------
735 # This macro should only be invoked once -- use via AC_REQUIRE.
736 #
737 # This code is only required when automatic dependency tracking is enabled.
738 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
739 # order to bootstrap the dependency handling code.
740 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
741 [AC_CONFIG_COMMANDS([depfiles],
742 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
743 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
745 # Do all the work for Automake. -*- Autoconf -*-
747 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
748 #
749 # This file is free software; the Free Software Foundation
750 # gives unlimited permission to copy and/or distribute it,
751 # with or without modifications, as long as this notice is preserved.
753 # This macro actually does too much. Some checks are only needed if
754 # your package does certain things. But this isn't really a big deal.
756 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
757 m4_define([AC_PROG_CC],
758 m4_defn([AC_PROG_CC])
759 [_AM_PROG_CC_C_O
760 ])
762 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
763 # AM_INIT_AUTOMAKE([OPTIONS])
764 # -----------------------------------------------
765 # The call with PACKAGE and VERSION arguments is the old style
766 # call (pre autoconf-2.50), which is being phased out. PACKAGE
767 # and VERSION should now be passed to AC_INIT and removed from
768 # the call to AM_INIT_AUTOMAKE.
769 # We support both call styles for the transition. After
770 # the next Automake release, Autoconf can make the AC_INIT
771 # arguments mandatory, and then we can depend on a new Autoconf
772 # release and drop the old call support.
773 AC_DEFUN([AM_INIT_AUTOMAKE],
774 [AC_PREREQ([2.65])dnl
775 dnl Autoconf wants to disallow AM_ names. We explicitly allow
776 dnl the ones we care about.
777 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
778 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
779 AC_REQUIRE([AC_PROG_INSTALL])dnl
780 if test "`cd $srcdir && pwd`" != "`pwd`"; then
781 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
782 # is not polluted with repeated "-I."
783 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
784 # test to see if srcdir already configured
785 if test -f $srcdir/config.status; then
786 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
787 fi
788 fi
790 # test whether we have cygpath
791 if test -z "$CYGPATH_W"; then
792 if (cygpath --version) >/dev/null 2>/dev/null; then
793 CYGPATH_W='cygpath -w'
794 else
795 CYGPATH_W=echo
796 fi
797 fi
798 AC_SUBST([CYGPATH_W])
800 # Define the identity of the package.
801 dnl Distinguish between old-style and new-style calls.
802 m4_ifval([$2],
803 [AC_DIAGNOSE([obsolete],
804 [$0: two- and three-arguments forms are deprecated.])
805 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
806 AC_SUBST([PACKAGE], [$1])dnl
807 AC_SUBST([VERSION], [$2])],
808 [_AM_SET_OPTIONS([$1])dnl
809 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
810 m4_if(
811 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
812 [ok:ok],,
813 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
814 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
815 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
817 _AM_IF_OPTION([no-define],,
818 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
819 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
821 # Some tools Automake needs.
822 AC_REQUIRE([AM_SANITY_CHECK])dnl
823 AC_REQUIRE([AC_ARG_PROGRAM])dnl
824 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
825 AM_MISSING_PROG([AUTOCONF], [autoconf])
826 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
827 AM_MISSING_PROG([AUTOHEADER], [autoheader])
828 AM_MISSING_PROG([MAKEINFO], [makeinfo])
829 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
830 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
831 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
832 # For better backward compatibility. To be removed once Automake 1.9.x
833 # dies out for good. For more background, see:
834 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
835 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
836 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
837 # We need awk for the "check" target (and possibly the TAP driver). The
838 # system "awk" is bad on some platforms.
839 AC_REQUIRE([AC_PROG_AWK])dnl
840 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
841 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
842 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
843 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
844 [_AM_PROG_TAR([v7])])])
845 _AM_IF_OPTION([no-dependencies],,
846 [AC_PROVIDE_IFELSE([AC_PROG_CC],
847 [_AM_DEPENDENCIES([CC])],
848 [m4_define([AC_PROG_CC],
849 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
850 AC_PROVIDE_IFELSE([AC_PROG_CXX],
851 [_AM_DEPENDENCIES([CXX])],
852 [m4_define([AC_PROG_CXX],
853 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
854 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
855 [_AM_DEPENDENCIES([OBJC])],
856 [m4_define([AC_PROG_OBJC],
857 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
858 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
859 [_AM_DEPENDENCIES([OBJCXX])],
860 [m4_define([AC_PROG_OBJCXX],
861 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
862 ])
863 AC_REQUIRE([AM_SILENT_RULES])dnl
864 dnl The testsuite driver may need to know about EXEEXT, so add the
865 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
866 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
867 AC_CONFIG_COMMANDS_PRE(dnl
868 [m4_provide_if([_AM_COMPILER_EXEEXT],
869 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
871 # POSIX will say in a future version that running "rm -f" with no argument
872 # is OK; and we want to be able to make that assumption in our Makefile
873 # recipes. So use an aggressive probe to check that the usage we want is
874 # actually supported "in the wild" to an acceptable degree.
875 # See automake bug#10828.
876 # To make any issue more visible, cause the running configure to be aborted
877 # by default if the 'rm' program in use doesn't match our expectations; the
878 # user can still override this though.
879 if rm -f && rm -fr && rm -rf; then : OK; else
880 cat >&2 <<'END'
881 Oops!
883 Your 'rm' program seems unable to run without file operands specified
884 on the command line, even when the '-f' option is present. This is contrary
885 to the behaviour of most rm programs out there, and not conforming with
886 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
888 Please tell bug-automake@gnu.org about your system, including the value
889 of your $PATH and any error possibly output before this message. This
890 can help us improve future automake versions.
892 END
893 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
894 echo 'Configuration will proceed anyway, since you have set the' >&2
895 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
896 echo >&2
897 else
898 cat >&2 <<'END'
899 Aborting the configuration process, to ensure you take notice of the issue.
901 You can download and install GNU coreutils to get an 'rm' implementation
902 that behaves properly: <https://www.gnu.org/software/coreutils/>.
904 If you want to complete the configuration process using your problematic
905 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
906 to "yes", and re-run configure.
908 END
909 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
910 fi
911 fi
912 dnl The trailing newline in this macro's definition is deliberate, for
913 dnl backward compatibility and to allow trailing 'dnl'-style comments
914 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
915 ])
917 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
918 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
919 dnl mangled by Autoconf and run in a shell conditional statement.
920 m4_define([_AC_COMPILER_EXEEXT],
921 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
923 # When config.status generates a header, we must update the stamp-h file.
924 # This file resides in the same directory as the config header
925 # that is generated. The stamp files are numbered to have different names.
927 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
928 # loop where config.status creates the headers, so we can generate
929 # our stamp files there.
930 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
931 [# Compute $1's index in $config_headers.
932 _am_arg=$1
933 _am_stamp_count=1
934 for _am_header in $config_headers :; do
935 case $_am_header in
936 $_am_arg | $_am_arg:* )
937 break ;;
938 * )
939 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
940 esac
941 done
942 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
944 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
945 #
946 # This file is free software; the Free Software Foundation
947 # gives unlimited permission to copy and/or distribute it,
948 # with or without modifications, as long as this notice is preserved.
950 # AM_PROG_INSTALL_SH
951 # ------------------
952 # Define $install_sh.
953 AC_DEFUN([AM_PROG_INSTALL_SH],
954 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
955 if test x"${install_sh+set}" != xset; then
956 case $am_aux_dir in
957 *\ * | *\ *)
958 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
959 *)
960 install_sh="\${SHELL} $am_aux_dir/install-sh"
961 esac
962 fi
963 AC_SUBST([install_sh])])
965 # Copyright (C) 2003-2020 Free Software Foundation, Inc.
966 #
967 # This file is free software; the Free Software Foundation
968 # gives unlimited permission to copy and/or distribute it,
969 # with or without modifications, as long as this notice is preserved.
971 # Check whether the underlying file-system supports filenames
972 # with a leading dot. For instance MS-DOS doesn't.
973 AC_DEFUN([AM_SET_LEADING_DOT],
974 [rm -rf .tst 2>/dev/null
975 mkdir .tst 2>/dev/null
976 if test -d .tst; then
977 am__leading_dot=.
978 else
979 am__leading_dot=_
980 fi
981 rmdir .tst 2>/dev/null
982 AC_SUBST([am__leading_dot])])
984 # Check to see how 'make' treats includes. -*- Autoconf -*-
986 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
987 #
988 # This file is free software; the Free Software Foundation
989 # gives unlimited permission to copy and/or distribute it,
990 # with or without modifications, as long as this notice is preserved.
992 # AM_MAKE_INCLUDE()
993 # -----------------
994 # Check whether make has an 'include' directive that can support all
995 # the idioms we need for our automatic dependency tracking code.
996 AC_DEFUN([AM_MAKE_INCLUDE],
997 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
998 cat > confinc.mk << 'END'
999 am__doit:
1000 @echo this is the am__doit target >confinc.out
1001 .PHONY: am__doit
1002 END
1003 am__include="#"
1004 am__quote=
1005 # BSD make does it like this.
1006 echo '.include "confinc.mk" # ignored' > confmf.BSD
1007 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
1008 echo 'include confinc.mk # ignored' > confmf.GNU
1009 _am_result=no
1010 for s in GNU BSD; do
1011 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
1012 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
1013 ['0:this is the am__doit target'],
1014 [AS_CASE([$s],
1015 [BSD], [am__include='.include' am__quote='"'],
1016 [am__include='include' am__quote=''])])
1017 if test "$am__include" != "#"; then
1018 _am_result="yes ($s style)"
1019 break
1020 fi
1021 done
1022 rm -f confinc.* confmf.*
1023 AC_MSG_RESULT([${_am_result}])
1024 AC_SUBST([am__include])])
1025 AC_SUBST([am__quote])])
1027 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
1029 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
1030 #
1031 # This file is free software; the Free Software Foundation
1032 # gives unlimited permission to copy and/or distribute it,
1033 # with or without modifications, as long as this notice is preserved.
1035 # AM_MISSING_PROG(NAME, PROGRAM)
1036 # ------------------------------
1037 AC_DEFUN([AM_MISSING_PROG],
1038 [AC_REQUIRE([AM_MISSING_HAS_RUN])
1039 $1=${$1-"${am_missing_run}$2"}
1040 AC_SUBST($1)])
1042 # AM_MISSING_HAS_RUN
1043 # ------------------
1044 # Define MISSING if not defined so far and test if it is modern enough.
1045 # If it is, set am_missing_run to use it, otherwise, to nothing.
1046 AC_DEFUN([AM_MISSING_HAS_RUN],
1047 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1048 AC_REQUIRE_AUX_FILE([missing])dnl
1049 if test x"${MISSING+set}" != xset; then
1050 case $am_aux_dir in
1051 *\ * | *\ *)
1052 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
1053 *)
1054 MISSING="\${SHELL} $am_aux_dir/missing" ;;
1055 esac
1056 fi
1057 # Use eval to expand $SHELL
1058 if eval "$MISSING --is-lightweight"; then
1059 am_missing_run="$MISSING "
1060 else
1061 am_missing_run=
1062 AC_MSG_WARN(['missing' script is too old or missing])
1063 fi
1064 ])
1066 # Helper functions for option handling. -*- Autoconf -*-
1068 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1069 #
1070 # This file is free software; the Free Software Foundation
1071 # gives unlimited permission to copy and/or distribute it,
1072 # with or without modifications, as long as this notice is preserved.
1074 # _AM_MANGLE_OPTION(NAME)
1075 # -----------------------
1076 AC_DEFUN([_AM_MANGLE_OPTION],
1077 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1079 # _AM_SET_OPTION(NAME)
1080 # --------------------
1081 # Set option NAME. Presently that only means defining a flag for this option.
1082 AC_DEFUN([_AM_SET_OPTION],
1083 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1085 # _AM_SET_OPTIONS(OPTIONS)
1086 # ------------------------
1087 # OPTIONS is a space-separated list of Automake options.
1088 AC_DEFUN([_AM_SET_OPTIONS],
1089 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1091 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1092 # -------------------------------------------
1093 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1094 AC_DEFUN([_AM_IF_OPTION],
1095 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1097 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
1098 #
1099 # This file is free software; the Free Software Foundation
1100 # gives unlimited permission to copy and/or distribute it,
1101 # with or without modifications, as long as this notice is preserved.
1103 # _AM_PROG_CC_C_O
1104 # ---------------
1105 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
1106 # to automatically call this.
1107 AC_DEFUN([_AM_PROG_CC_C_O],
1108 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1109 AC_REQUIRE_AUX_FILE([compile])dnl
1110 AC_LANG_PUSH([C])dnl
1111 AC_CACHE_CHECK(
1112 [whether $CC understands -c and -o together],
1113 [am_cv_prog_cc_c_o],
1114 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
1115 # Make sure it works both with $CC and with simple cc.
1116 # Following AC_PROG_CC_C_O, we do the test twice because some
1117 # compilers refuse to overwrite an existing .o file with -o,
1118 # though they will create one.
1119 am_cv_prog_cc_c_o=yes
1120 for am_i in 1 2; do
1121 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
1122 && test -f conftest2.$ac_objext; then
1123 : OK
1124 else
1125 am_cv_prog_cc_c_o=no
1126 break
1127 fi
1128 done
1129 rm -f core conftest*
1130 unset am_i])
1131 if test "$am_cv_prog_cc_c_o" != yes; then
1132 # Losing compiler, so override with the script.
1133 # FIXME: It is wrong to rewrite CC.
1134 # But if we don't then we get into trouble of one sort or another.
1135 # A longer-term fix would be to have automake use am__CC in this case,
1136 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
1137 CC="$am_aux_dir/compile $CC"
1138 fi
1139 AC_LANG_POP([C])])
1141 # For backward compatibility.
1142 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1144 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1145 #
1146 # This file is free software; the Free Software Foundation
1147 # gives unlimited permission to copy and/or distribute it,
1148 # with or without modifications, as long as this notice is preserved.
1150 # AM_RUN_LOG(COMMAND)
1151 # -------------------
1152 # Run COMMAND, save the exit status in ac_status, and log it.
1153 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1154 AC_DEFUN([AM_RUN_LOG],
1155 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1156 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1157 ac_status=$?
1158 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1159 (exit $ac_status); }])
1161 # Check to make sure that the build environment is sane. -*- Autoconf -*-
1163 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
1164 #
1165 # This file is free software; the Free Software Foundation
1166 # gives unlimited permission to copy and/or distribute it,
1167 # with or without modifications, as long as this notice is preserved.
1169 # AM_SANITY_CHECK
1170 # ---------------
1171 AC_DEFUN([AM_SANITY_CHECK],
1172 [AC_MSG_CHECKING([whether build environment is sane])
1173 # Reject unsafe characters in $srcdir or the absolute working directory
1174 # name. Accept space and tab only in the latter.
1175 am_lf='
1176 '
1177 case `pwd` in
1178 *[[\\\"\#\$\&\'\`$am_lf]]*)
1179 AC_MSG_ERROR([unsafe absolute working directory name]);;
1180 esac
1181 case $srcdir in
1182 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
1183 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1184 esac
1186 # Do 'set' in a subshell so we don't clobber the current shell's
1187 # arguments. Must try -L first in case configure is actually a
1188 # symlink; some systems play weird games with the mod time of symlinks
1189 # (eg FreeBSD returns the mod time of the symlink's containing
1190 # directory).
1191 if (
1192 am_has_slept=no
1193 for am_try in 1 2; do
1194 echo "timestamp, slept: $am_has_slept" > conftest.file
1195 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1196 if test "$[*]" = "X"; then
1197 # -L didn't work.
1198 set X `ls -t "$srcdir/configure" conftest.file`
1199 fi
1200 if test "$[*]" != "X $srcdir/configure conftest.file" \
1201 && test "$[*]" != "X conftest.file $srcdir/configure"; then
1203 # If neither matched, then we have a broken ls. This can happen
1204 # if, for instance, CONFIG_SHELL is bash and it inherits a
1205 # broken ls alias from the environment. This has actually
1206 # happened. Such a system could not be considered "sane".
1207 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
1208 alias in your environment])
1209 fi
1210 if test "$[2]" = conftest.file || test $am_try -eq 2; then
1211 break
1212 fi
1213 # Just in case.
1214 sleep 1
1215 am_has_slept=yes
1216 done
1217 test "$[2]" = conftest.file
1218 )
1219 then
1220 # Ok.
1221 :
1222 else
1223 AC_MSG_ERROR([newly created file is older than distributed files!
1224 Check your system clock])
1225 fi
1226 AC_MSG_RESULT([yes])
1227 # If we didn't sleep, we still need to ensure time stamps of config.status and
1228 # generated files are strictly newer.
1229 am_sleep_pid=
1230 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1231 ( sleep 1 ) &
1232 am_sleep_pid=$!
1233 fi
1234 AC_CONFIG_COMMANDS_PRE(
1235 [AC_MSG_CHECKING([that generated files are newer than configure])
1236 if test -n "$am_sleep_pid"; then
1237 # Hide warnings about reused PIDs.
1238 wait $am_sleep_pid 2>/dev/null
1239 fi
1240 AC_MSG_RESULT([done])])
1241 rm -f conftest.file
1242 ])
1244 # Copyright (C) 2009-2020 Free Software Foundation, Inc.
1245 #
1246 # This file is free software; the Free Software Foundation
1247 # gives unlimited permission to copy and/or distribute it,
1248 # with or without modifications, as long as this notice is preserved.
1250 # AM_SILENT_RULES([DEFAULT])
1251 # --------------------------
1252 # Enable less verbose build rules; with the default set to DEFAULT
1253 # ("yes" being less verbose, "no" or empty being verbose).
1254 AC_DEFUN([AM_SILENT_RULES],
1255 [AC_ARG_ENABLE([silent-rules], [dnl
1256 AS_HELP_STRING(
1257 [--enable-silent-rules],
1258 [less verbose build output (undo: "make V=1")])
1259 AS_HELP_STRING(
1260 [--disable-silent-rules],
1261 [verbose build output (undo: "make V=0")])dnl
1262 ])
1263 case $enable_silent_rules in @%:@ (((
1264 yes) AM_DEFAULT_VERBOSITY=0;;
1265 no) AM_DEFAULT_VERBOSITY=1;;
1266 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1267 esac
1268 dnl
1269 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1270 dnl do not support nested variable expansions.
1271 dnl See automake bug#9928 and bug#10237.
1272 am_make=${MAKE-make}
1273 AC_CACHE_CHECK([whether $am_make supports nested variables],
1274 [am_cv_make_support_nested_variables],
1275 [if AS_ECHO([['TRUE=$(BAR$(V))
1276 BAR0=false
1277 BAR1=true
1278 V=1
1279 am__doit:
1280 @$(TRUE)
1281 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1282 am_cv_make_support_nested_variables=yes
1283 else
1284 am_cv_make_support_nested_variables=no
1285 fi])
1286 if test $am_cv_make_support_nested_variables = yes; then
1287 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1288 AM_V='$(V)'
1289 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1290 else
1291 AM_V=$AM_DEFAULT_VERBOSITY
1292 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1293 fi
1294 AC_SUBST([AM_V])dnl
1295 AM_SUBST_NOTMAKE([AM_V])dnl
1296 AC_SUBST([AM_DEFAULT_V])dnl
1297 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1298 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1299 AM_BACKSLASH='\'
1300 AC_SUBST([AM_BACKSLASH])dnl
1301 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1302 ])
1304 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
1305 #
1306 # This file is free software; the Free Software Foundation
1307 # gives unlimited permission to copy and/or distribute it,
1308 # with or without modifications, as long as this notice is preserved.
1310 # AM_PROG_INSTALL_STRIP
1311 # ---------------------
1312 # One issue with vendor 'install' (even GNU) is that you can't
1313 # specify the program used to strip binaries. This is especially
1314 # annoying in cross-compiling environments, where the build's strip
1315 # is unlikely to handle the host's binaries.
1316 # Fortunately install-sh will honor a STRIPPROG variable, so we
1317 # always use install-sh in "make install-strip", and initialize
1318 # STRIPPROG with the value of the STRIP variable (set by the user).
1319 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1320 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1321 # Installed binaries are usually stripped using 'strip' when the user
1322 # run "make install-strip". However 'strip' might not be the right
1323 # tool to use in cross-compilation environments, therefore Automake
1324 # will honor the 'STRIP' environment variable to overrule this program.
1325 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1326 if test "$cross_compiling" != no; then
1327 AC_CHECK_TOOL([STRIP], [strip], :)
1328 fi
1329 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1330 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1332 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
1333 #
1334 # This file is free software; the Free Software Foundation
1335 # gives unlimited permission to copy and/or distribute it,
1336 # with or without modifications, as long as this notice is preserved.
1338 # _AM_SUBST_NOTMAKE(VARIABLE)
1339 # ---------------------------
1340 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1341 # This macro is traced by Automake.
1342 AC_DEFUN([_AM_SUBST_NOTMAKE])
1344 # AM_SUBST_NOTMAKE(VARIABLE)
1345 # --------------------------
1346 # Public sister of _AM_SUBST_NOTMAKE.
1347 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1349 # Check how to create a tarball. -*- Autoconf -*-
1351 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
1352 #
1353 # This file is free software; the Free Software Foundation
1354 # gives unlimited permission to copy and/or distribute it,
1355 # with or without modifications, as long as this notice is preserved.
1357 # _AM_PROG_TAR(FORMAT)
1358 # --------------------
1359 # Check how to create a tarball in format FORMAT.
1360 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1361 #
1362 # Substitute a variable $(am__tar) that is a command
1363 # writing to stdout a FORMAT-tarball containing the directory
1364 # $tardir.
1365 # tardir=directory && $(am__tar) > result.tar
1366 #
1367 # Substitute a variable $(am__untar) that extract such
1368 # a tarball read from stdin.
1369 # $(am__untar) < result.tar
1370 #
1371 AC_DEFUN([_AM_PROG_TAR],
1372 [# Always define AMTAR for backward compatibility. Yes, it's still used
1373 # in the wild :-( We should find a proper way to deprecate it ...
1374 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1376 # We'll loop over all known methods to create a tar archive until one works.
1377 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1379 m4_if([$1], [v7],
1380 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1382 [m4_case([$1],
1383 [ustar],
1384 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1385 # There is notably a 21 bits limit for the UID and the GID. In fact,
1386 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1387 # and bug#13588).
1388 am_max_uid=2097151 # 2^21 - 1
1389 am_max_gid=$am_max_uid
1390 # The $UID and $GID variables are not portable, so we need to resort
1391 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1392 # below are definitely unexpected, so allow the users to see them
1393 # (that is, avoid stderr redirection).
1394 am_uid=`id -u || echo unknown`
1395 am_gid=`id -g || echo unknown`
1396 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1397 if test $am_uid -le $am_max_uid; then
1398 AC_MSG_RESULT([yes])
1399 else
1400 AC_MSG_RESULT([no])
1401 _am_tools=none
1402 fi
1403 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1404 if test $am_gid -le $am_max_gid; then
1405 AC_MSG_RESULT([yes])
1406 else
1407 AC_MSG_RESULT([no])
1408 _am_tools=none
1409 fi],
1411 [pax],
1412 [],
1414 [m4_fatal([Unknown tar format])])
1416 AC_MSG_CHECKING([how to create a $1 tar archive])
1418 # Go ahead even if we have the value already cached. We do so because we
1419 # need to set the values for the 'am__tar' and 'am__untar' variables.
1420 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1422 for _am_tool in $_am_tools; do
1423 case $_am_tool in
1424 gnutar)
1425 for _am_tar in tar gnutar gtar; do
1426 AM_RUN_LOG([$_am_tar --version]) && break
1427 done
1428 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1429 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1430 am__untar="$_am_tar -xf -"
1431 ;;
1432 plaintar)
1433 # Must skip GNU tar: if it does not support --format= it doesn't create
1434 # ustar tarball either.
1435 (tar --version) >/dev/null 2>&1 && continue
1436 am__tar='tar chf - "$$tardir"'
1437 am__tar_='tar chf - "$tardir"'
1438 am__untar='tar xf -'
1439 ;;
1440 pax)
1441 am__tar='pax -L -x $1 -w "$$tardir"'
1442 am__tar_='pax -L -x $1 -w "$tardir"'
1443 am__untar='pax -r'
1444 ;;
1445 cpio)
1446 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1447 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1448 am__untar='cpio -i -H $1 -d'
1449 ;;
1450 none)
1451 am__tar=false
1452 am__tar_=false
1453 am__untar=false
1454 ;;
1455 esac
1457 # If the value was cached, stop now. We just wanted to have am__tar
1458 # and am__untar set.
1459 test -n "${am_cv_prog_tar_$1}" && break
1461 # tar/untar a dummy directory, and stop if the command works.
1462 rm -rf conftest.dir
1463 mkdir conftest.dir
1464 echo GrepMe > conftest.dir/file
1465 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1466 rm -rf conftest.dir
1467 if test -s conftest.tar; then
1468 AM_RUN_LOG([$am__untar <conftest.tar])
1469 AM_RUN_LOG([cat conftest.dir/file])
1470 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1471 fi
1472 done
1473 rm -rf conftest.dir
1475 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1476 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1478 AC_SUBST([am__tar])
1479 AC_SUBST([am__untar])
1480 ]) # _AM_PROG_TAR