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1# generated automatically by aclocal 1.16.2 -*- 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
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
16  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18[m4_warning([this file was generated for autoconf 2.69.
19You have another version of autoconf.  It may work, but is not guaranteed to.
20If you have problems, you may need to regenerate the build system entirely.
21To 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
26dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
27dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
28dnl
29dnl This program is free software; you can redistribute it and/or modify
30dnl it under the terms of the GNU General Public License as published by
31dnl the Free Software Foundation; either version 2 of the License, or
32dnl (at your option) any later version.
33dnl
34dnl This program is distributed in the hope that it will be useful, but
35dnl WITHOUT ANY WARRANTY; without even the implied warranty of
36dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
37dnl General Public License for more details.
38dnl
39dnl You should have received a copy of the GNU General Public License
40dnl along with this program; if not, write to the Free Software
41dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
42dnl 02111-1307, USA.
43dnl
44dnl As a special exception to the GNU General Public License, if you
45dnl distribute this file as part of a program that contains a
46dnl configuration script generated by Autoconf, you may include it under
47dnl the same distribution terms that you use for the rest of that
48dnl program.
49
50dnl PKG_PREREQ(MIN-VERSION)
51dnl -----------------------
52dnl Since: 0.29
53dnl
54dnl Verify that the version of the pkg-config macros are at least
55dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
56dnl installed version of pkg-config, this checks the developer's version
57dnl of pkg.m4 when generating configure.
58dnl
59dnl To ensure that this macro is defined, also add:
60dnl m4_ifndef([PKG_PREREQ],
61dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
62dnl
63dnl See the "Since" comment for each macro you use to see what version
64dnl of the macros you require.
65m4_defun([PKG_PREREQ],
66[m4_define([PKG_MACROS_VERSION], [0.29.1])
67m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
68    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
69])dnl PKG_PREREQ
70
71dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
72dnl ----------------------------------
73dnl Since: 0.16
74dnl
75dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
76dnl first found in the path. Checks that the version of pkg-config found
77dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
78dnl used since that's the first version where most current features of
79dnl pkg-config existed.
80AC_DEFUN([PKG_PROG_PKG_CONFIG],
81[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
82m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
83m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
84AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
85AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
86AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
87
88if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
89	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
90fi
91if test -n "$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 $_pkg_min_version; then
95		AC_MSG_RESULT([yes])
96	else
97		AC_MSG_RESULT([no])
98		PKG_CONFIG=""
99	fi
100fi[]dnl
101])dnl PKG_PROG_PKG_CONFIG
102
103dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
104dnl -------------------------------------------------------------------
105dnl Since: 0.18
106dnl
107dnl Check to see whether a particular set of modules exists. Similar to
108dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
109dnl
110dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
111dnl only at the first occurence in configure.ac, so if the first place
112dnl it's called might be skipped (such as if it is within an "if", you
113dnl have to call PKG_CHECK_EXISTS manually
114AC_DEFUN([PKG_CHECK_EXISTS],
115[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
116if test -n "$PKG_CONFIG" && \
117    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
118  m4_default([$2], [:])
119m4_ifvaln([$3], [else
120  $3])dnl
121fi])
122
123dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
124dnl ---------------------------------------------
125dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
126dnl pkg_failed based on the result.
127m4_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
137fi[]dnl
138])dnl _PKG_CONFIG
139
140dnl _PKG_SHORT_ERRORS_SUPPORTED
141dnl ---------------------------
142dnl Internal check to see if pkg-config supports short errors.
143AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
144[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
145if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
146        _pkg_short_errors_supported=yes
147else
148        _pkg_short_errors_supported=no
149fi[]dnl
150])dnl _PKG_SHORT_ERRORS_SUPPORTED
151
152
153dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
154dnl   [ACTION-IF-NOT-FOUND])
155dnl --------------------------------------------------------------
156dnl Since: 0.4.0
157dnl
158dnl Note that if there is a possibility the first call to
159dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
160dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
161AC_DEFUN([PKG_CHECK_MODULES],
162[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
163AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
164AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
165
166pkg_failed=no
167AC_MSG_CHECKING([for $1])
168
169_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
170_PKG_CONFIG([$1][_LIBS], [libs], [$2])
171
172m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
173and $1[]_LIBS to avoid the need to call pkg-config.
174See the pkg-config man page for more details.])
175
176if 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
192Consider adjusting the PKG_CONFIG_PATH environment variable if you
193installed software in a non-standard prefix.
194
195_PKG_TEXT])[]dnl
196        ])
197elif 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
201is in your PATH or set the PKG_CONFIG environment variable to the full
202path to pkg-config.
203
204_PKG_TEXT
205
206To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
207        ])
208else
209	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
210	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
211        AC_MSG_RESULT([yes])
212	$3
213fi[]dnl
214])dnl PKG_CHECK_MODULES
215
216
217dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
218dnl   [ACTION-IF-NOT-FOUND])
219dnl ---------------------------------------------------------------------
220dnl Since: 0.29
221dnl
222dnl Checks for existence of MODULES and gathers its build flags with
223dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
224dnl and VARIABLE-PREFIX_LIBS from --libs.
225dnl
226dnl Note that if there is a possibility the first call to
227dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
228dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
229dnl configure.ac.
230AC_DEFUN([PKG_CHECK_MODULES_STATIC],
231[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
232_save_PKG_CONFIG=$PKG_CONFIG
233PKG_CONFIG="$PKG_CONFIG --static"
234PKG_CHECK_MODULES($@)
235PKG_CONFIG=$_save_PKG_CONFIG[]dnl
236])dnl PKG_CHECK_MODULES_STATIC
237
238
239dnl PKG_INSTALLDIR([DIRECTORY])
240dnl -------------------------
241dnl Since: 0.27
242dnl
243dnl Substitutes the variable pkgconfigdir as the location where a module
244dnl should install pkg-config .pc files. By default the directory is
245dnl $libdir/pkgconfig, but the default can be changed by passing
246dnl DIRECTORY. The user can override through the --with-pkgconfigdir
247dnl parameter.
248AC_DEFUN([PKG_INSTALLDIR],
249[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
250m4_pushdef([pkg_description],
251    [pkg-config installation directory @<:@]pkg_default[@:>@])
252AC_ARG_WITH([pkgconfigdir],
253    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
254    [with_pkgconfigdir=]pkg_default)
255AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
256m4_popdef([pkg_default])
257m4_popdef([pkg_description])
258])dnl PKG_INSTALLDIR
259
260
261dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
262dnl --------------------------------
263dnl Since: 0.27
264dnl
265dnl Substitutes the variable noarch_pkgconfigdir as the location where a
266dnl module should install arch-independent pkg-config .pc files. By
267dnl default the directory is $datadir/pkgconfig, but the default can be
268dnl changed by passing DIRECTORY. The user can override through the
269dnl --with-noarch-pkgconfigdir parameter.
270AC_DEFUN([PKG_NOARCH_INSTALLDIR],
271[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
272m4_pushdef([pkg_description],
273    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
274AC_ARG_WITH([noarch-pkgconfigdir],
275    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
276    [with_noarch_pkgconfigdir=]pkg_default)
277AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
278m4_popdef([pkg_default])
279m4_popdef([pkg_description])
280])dnl PKG_NOARCH_INSTALLDIR
281
282
283dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
284dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
285dnl -------------------------------------------
286dnl Since: 0.28
287dnl
288dnl Retrieves the value of the pkg-config variable for the given module.
289AC_DEFUN([PKG_CHECK_VAR],
290[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
291AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
292
293_PKG_CONFIG([$1], [variable="][$3]["], [$2])
294AS_VAR_COPY([$1], [pkg_cv_][$1])
295
296AS_VAR_IF([$1], [""], [$5], [$4])dnl
297])dnl PKG_CHECK_VAR
298
299dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
300dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
301dnl   [DESCRIPTION], [DEFAULT])
302dnl ------------------------------------------
303dnl
304dnl Prepare a "--with-" configure option using the lowercase
305dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
306dnl PKG_CHECK_MODULES in a single macro.
307AC_DEFUN([PKG_WITH_MODULES],
308[
309m4_pushdef([with_arg], m4_tolower([$1]))
310
311m4_pushdef([description],
312           [m4_default([$5], [build with ]with_arg[ support])])
313
314m4_pushdef([def_arg], [m4_default([$6], [auto])])
315m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
316m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
317
318m4_case(def_arg,
319            [yes],[m4_pushdef([with_without], [--without-]with_arg)],
320            [m4_pushdef([with_without],[--with-]with_arg)])
321
322AC_ARG_WITH(with_arg,
323     AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
324    [AS_TR_SH([with_]with_arg)=def_arg])
325
326AS_CASE([$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
332m4_popdef([with_arg])
333m4_popdef([description])
334m4_popdef([def_arg])
335
336])dnl PKG_WITH_MODULES
337
338dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
339dnl   [DESCRIPTION], [DEFAULT])
340dnl -----------------------------------------------
341dnl
342dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
343dnl check._[VARIABLE-PREFIX] is exported as make variable.
344AC_DEFUN([PKG_HAVE_WITH_MODULES],
345[
346PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
347
348AM_CONDITIONAL([HAVE_][$1],
349               [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
350])dnl PKG_HAVE_WITH_MODULES
351
352dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
353dnl   [DESCRIPTION], [DEFAULT])
354dnl ------------------------------------------------------
355dnl
356dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
357dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
358dnl and preprocessor variable.
359AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
360[
361PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
362
363AS_IF([test "$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.)
378AC_DEFUN([AM_AUTOMAKE_VERSION],
379[am__api_version='1.16'
380dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
381dnl require some minimum version.  Point them to the right macro.
382m4_if([$1], [1.16.2], [],
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.
391m4_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.
397AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
398[AM_AUTOMAKE_VERSION([1.16.2])dnl
399m4_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# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
404
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.
410
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.
448
449AC_DEFUN([AM_AUX_DIR_EXPAND],
450[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
451# Expand $ac_aux_dir to an absolute path.
452am_aux_dir=`cd "$ac_aux_dir" && pwd`
453])
454
455# AM_CONDITIONAL                                            -*- Autoconf -*-
456
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.
462
463# AM_CONDITIONAL(NAME, SHELL-CONDITION)
464# -------------------------------------
465# Define a conditional.
466AC_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
470AC_SUBST([$1_TRUE])dnl
471AC_SUBST([$1_FALSE])dnl
472_AM_SUBST_NOTMAKE([$1_TRUE])dnl
473_AM_SUBST_NOTMAKE([$1_FALSE])dnl
474m4_define([_AM_COND_VALUE_$1], [$2])dnl
475if $2; then
476  $1_TRUE=
477  $1_FALSE='#'
478else
479  $1_TRUE='#'
480  $1_FALSE=
481fi
482AC_CONFIG_COMMANDS_PRE(
483[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
484  AC_MSG_ERROR([[conditional "$1" was never defined.
485Usually this means the macro was only invoked conditionally.]])
486fi])])
487
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.
493
494
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...
500
501
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.
512AC_DEFUN([_AM_DEPENDENCIES],
513[AC_REQUIRE([AM_SET_DEPDIR])dnl
514AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
515AC_REQUIRE([AM_MAKE_INCLUDE])dnl
516AC_REQUIRE([AM_DEP_TRACK])dnl
517
518m4_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=])
525
526AC_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
547
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])
561
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
578
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
631
632  cd ..
633  rm -rf conftest.dir
634else
635  am_cv_$1_dependencies_compiler_type=none
636fi
637])
638AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
639AM_CONDITIONAL([am__fastdep$1], [
640  test "x$enable_dependency_tracking" != xno \
641  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
642])
643
644
645# AM_SET_DEPDIR
646# -------------
647# Choose a directory name for dependency files.
648# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
649AC_DEFUN([AM_SET_DEPDIR],
650[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
651AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
652])
653
654
655# AM_DEP_TRACK
656# ------------
657AC_DEFUN([AM_DEP_TRACK],
658[AC_ARG_ENABLE([dependency-tracking], [dnl
659AS_HELP_STRING(
660  [--enable-dependency-tracking],
661  [do not reject slow dependency extractors])
662AS_HELP_STRING(
663  [--disable-dependency-tracking],
664  [speeds up one-time build])])
665if test "x$enable_dependency_tracking" != xno; then
666  am_depcomp="$ac_aux_dir/depcomp"
667  AMDEPBACKSLASH='\'
668  am__nodep='_no'
669fi
670AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
671AC_SUBST([AMDEPBACKSLASH])dnl
672_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
673AC_SUBST([am__nodep])dnl
674_AM_SUBST_NOTMAKE([am__nodep])dnl
675])
676
677# Generate code to set up dependency tracking.              -*- Autoconf -*-
678
679# Copyright (C) 1999-2020 Free Software Foundation, Inc.
680#
681# This file is free software; the Free Software Foundation
682# gives unlimited permission to copy and/or distribute it,
683# with or without modifications, as long as this notice is preserved.
684
685# _AM_OUTPUT_DEPENDENCY_COMMANDS
686# ------------------------------
687AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
688[{
689  # Older Autoconf quotes --file arguments for eval, but not when files
690  # are listed without --file.  Let's play safe and only enable the eval
691  # if we detect the quoting.
692  # TODO: see whether this extra hack can be removed once we start
693  # requiring Autoconf 2.70 or later.
694  AS_CASE([$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 $am_rc -ne 0; then
717    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
718    for automatic dependency tracking.  If GNU make was not used, consider
719    re-running the configure script with MAKE="gmake" (or whatever is
720    necessary).  You can also try re-running configure with the
721    '--disable-dependency-tracking' option to at least be able to build
722    the package (albeit without support for automatic dependency tracking).])
723  fi
724  AS_UNSET([am_dirpart])
725  AS_UNSET([am_filepart])
726  AS_UNSET([am_mf])
727  AS_UNSET([am_rc])
728  rm -f conftest-deps.mk
729}
730])# _AM_OUTPUT_DEPENDENCY_COMMANDS
731
732
733# AM_OUTPUT_DEPENDENCY_COMMANDS
734# -----------------------------
735# This macro should only be invoked once -- use via AC_REQUIRE.
736#
737# This code is only required when automatic dependency tracking is enabled.
738# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
739# order to bootstrap the dependency handling code.
740AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
741[AC_CONFIG_COMMANDS([depfiles],
742     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
743     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
744
745# Do all the work for Automake.                             -*- Autoconf -*-
746
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.
752
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.
755
756dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
757m4_define([AC_PROG_CC],
758m4_defn([AC_PROG_CC])
759[_AM_PROG_CC_C_O
760])
761
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.
773AC_DEFUN([AM_INIT_AUTOMAKE],
774[AC_PREREQ([2.65])dnl
775dnl Autoconf wants to disallow AM_ names.  We explicitly allow
776dnl the ones we care about.
777m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
778AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
779AC_REQUIRE([AC_PROG_INSTALL])dnl
780if 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 $srcdir/config.status; then
786    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
787  fi
788fi
789
790# test whether we have cygpath
791if test -z "$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
797fi
798AC_SUBST([CYGPATH_W])
799
800# Define the identity of the package.
801dnl Distinguish between old-style and new-style calls.
802m4_ifval([$2],
803[AC_DIAGNOSE([obsolete],
804             [$0: two- and three-arguments forms are deprecated.])
805m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
806 AC_SUBST([PACKAGE], [$1])dnl
807 AC_SUBST([VERSION], [$2])],
808[_AM_SET_OPTIONS([$1])dnl
809dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
810m4_if(
811  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
812  [ok:ok],,
813  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
814 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
815 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
816
817_AM_IF_OPTION([no-define],,
818[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
819 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
820
821# Some tools Automake needs.
822AC_REQUIRE([AM_SANITY_CHECK])dnl
823AC_REQUIRE([AC_ARG_PROGRAM])dnl
824AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
825AM_MISSING_PROG([AUTOCONF], [autoconf])
826AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
827AM_MISSING_PROG([AUTOHEADER], [autoheader])
828AM_MISSING_PROG([MAKEINFO], [makeinfo])
829AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
830AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
831AC_REQUIRE([AC_PROG_MKDIR_P])dnl
832# For better backward compatibility.  To be removed once Automake 1.9.x
833# dies out for good.  For more background, see:
834# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
835# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
836AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
837# We need awk for the "check" target (and possibly the TAP driver).  The
838# system "awk" is bad on some platforms.
839AC_REQUIRE([AC_PROG_AWK])dnl
840AC_REQUIRE([AC_PROG_MAKE_SET])dnl
841AC_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
850AC_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
854AC_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
858AC_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])
863AC_REQUIRE([AM_SILENT_RULES])dnl
864dnl The testsuite driver may need to know about EXEEXT, so add the
865dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
866dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
867AC_CONFIG_COMMANDS_PRE(dnl
868[m4_provide_if([_AM_COMPILER_EXEEXT],
869  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
870
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.
879if rm -f && rm -fr && rm -rf; then : OK; else
880  cat >&2 <<'END'
881Oops!
882
883Your 'rm' program seems unable to run without file operands specified
884on the command line, even when the '-f' option is present.  This is contrary
885to the behaviour of most rm programs out there, and not conforming with
886the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
887
888Please tell bug-automake@gnu.org about your system, including the value
889of your $PATH and any error possibly output before this message.  This
890can help us improve future automake versions.
891
892END
893  if test x"$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'
899Aborting the configuration process, to ensure you take notice of the issue.
900
901You can download and install GNU coreutils to get an 'rm' implementation
902that behaves properly: <https://www.gnu.org/software/coreutils/>.
903
904If you want to complete the configuration process using your problematic
905'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
906to "yes", and re-run configure.
907
908END
909    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
910  fi
911fi
912dnl The trailing newline in this macro's definition is deliberate, for
913dnl backward compatibility and to allow trailing 'dnl'-style comments
914dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
915])
916
917dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
918dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
919dnl mangled by Autoconf and run in a shell conditional statement.
920m4_define([_AC_COMPILER_EXEEXT],
921m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
922
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.
926
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.
930AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
931[# Compute $1's index in $config_headers.
932_am_arg=$1
933_am_stamp_count=1
934for _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
941done
942echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
943
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.
949
950# AM_PROG_INSTALL_SH
951# ------------------
952# Define $install_sh.
953AC_DEFUN([AM_PROG_INSTALL_SH],
954[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
955if test x"${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
962fi
963AC_SUBST([install_sh])])
964
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.
970
971# Check whether the underlying file-system supports filenames
972# with a leading dot.  For instance MS-DOS doesn't.
973AC_DEFUN([AM_SET_LEADING_DOT],
974[rm -rf .tst 2>/dev/null
975mkdir .tst 2>/dev/null
976if test -d .tst; then
977  am__leading_dot=.
978else
979  am__leading_dot=_
980fi
981rmdir .tst 2>/dev/null
982AC_SUBST([am__leading_dot])])
983
984# Check to see how 'make' treats includes.	            -*- Autoconf -*-
985
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.
991
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.
996AC_DEFUN([AM_MAKE_INCLUDE],
997[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
998cat > confinc.mk << 'END'
999am__doit:
1000	@echo this is the am__doit target >confinc.out
1001.PHONY: am__doit
1002END
1003am__include="#"
1004am__quote=
1005# BSD make does it like this.
1006echo '.include "confinc.mk" # ignored' > confmf.BSD
1007# Other make implementations (GNU, Solaris 10, AIX) do it like this.
1008echo 'include confinc.mk # ignored' > confmf.GNU
1009_am_result=no
1010for s in GNU BSD; do
1011  AM_RUN_LOG([${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 ($s style)"
1019    break
1020  fi
1021done
1022rm -f confinc.* confmf.*
1023AC_MSG_RESULT([${_am_result}])
1024AC_SUBST([am__include])])
1025AC_SUBST([am__quote])])
1026
1027# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
1028
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.
1034
1035# AM_MISSING_PROG(NAME, PROGRAM)
1036# ------------------------------
1037AC_DEFUN([AM_MISSING_PROG],
1038[AC_REQUIRE([AM_MISSING_HAS_RUN])
1039$1=${$1-"${am_missing_run}$2"}
1040AC_SUBST($1)])
1041
1042# AM_MISSING_HAS_RUN
1043# ------------------
1044# Define MISSING if not defined so far and test if it is modern enough.
1045# If it is, set am_missing_run to use it, otherwise, to nothing.
1046AC_DEFUN([AM_MISSING_HAS_RUN],
1047[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1048AC_REQUIRE_AUX_FILE([missing])dnl
1049if test x"${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
1056fi
1057# Use eval to expand $SHELL
1058if eval "$MISSING --is-lightweight"; then
1059  am_missing_run="$MISSING "
1060else
1061  am_missing_run=
1062  AC_MSG_WARN(['missing' script is too old or missing])
1063fi
1064])
1065
1066# Helper functions for option handling.                     -*- Autoconf -*-
1067
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.
1073
1074# _AM_MANGLE_OPTION(NAME)
1075# -----------------------
1076AC_DEFUN([_AM_MANGLE_OPTION],
1077[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1078
1079# _AM_SET_OPTION(NAME)
1080# --------------------
1081# Set option NAME.  Presently that only means defining a flag for this option.
1082AC_DEFUN([_AM_SET_OPTION],
1083[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1084
1085# _AM_SET_OPTIONS(OPTIONS)
1086# ------------------------
1087# OPTIONS is a space-separated list of Automake options.
1088AC_DEFUN([_AM_SET_OPTIONS],
1089[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1090
1091# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1092# -------------------------------------------
1093# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1094AC_DEFUN([_AM_IF_OPTION],
1095[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1096
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.
1102
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.
1107AC_DEFUN([_AM_PROG_CC_C_O],
1108[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1109AC_REQUIRE_AUX_FILE([compile])dnl
1110AC_LANG_PUSH([C])dnl
1111AC_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.$ac_objext; then
1123      : OK
1124    else
1125      am_cv_prog_cc_c_o=no
1126      break
1127    fi
1128  done
1129  rm -f core conftest*
1130  unset am_i])
1131if test "$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"
1138fi
1139AC_LANG_POP([C])])
1140
1141# For backward compatibility.
1142AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1143
1144# Copyright (C) 1999-2020 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.
1149
1150
1151# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
1152# ---------------------------------------------------------------------------
1153# Adds support for distributing Python modules and packages.  To
1154# install modules, copy them to $(pythondir), using the python_PYTHON
1155# automake variable.  To install a package with the same name as the
1156# automake package, install to $(pkgpythondir), or use the
1157# pkgpython_PYTHON automake variable.
1158#
1159# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
1160# locations to install python extension modules (shared libraries).
1161# Another macro is required to find the appropriate flags to compile
1162# extension modules.
1163#
1164# If your package is configured with a different prefix to python,
1165# users will have to add the install directory to the PYTHONPATH
1166# environment variable, or create a .pth file (see the python
1167# documentation for details).
1168#
1169# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
1170# cause an error if the version of python installed on the system
1171# doesn't meet the requirement.  MINIMUM-VERSION should consist of
1172# numbers and dots only.
1173AC_DEFUN([AM_PATH_PYTHON],
1174 [
1175  dnl Find a Python interpreter.  Python versions prior to 2.0 are not
1176  dnl supported. (2.0 was released on October 16, 2000).
1177  m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
1178[python python2 python3 dnl
1179 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
1180 python3.2 python3.1 python3.0 dnl
1181 python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
1182 python2.0])
1183
1184  AC_ARG_VAR([PYTHON], [the Python interpreter])
1185
1186  m4_if([$1],[],[
1187    dnl No version check is needed.
1188    # Find any Python interpreter.
1189    if test -z "$PYTHON"; then
1190      AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
1191    fi
1192    am_display_PYTHON=python
1193  ], [
1194    dnl A version check is needed.
1195    if test -n "$PYTHON"; then
1196      # If the user set $PYTHON, use it and don't search something else.
1197      AC_MSG_CHECKING([whether $PYTHON version is >= $1])
1198      AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
1199			      [AC_MSG_RESULT([yes])],
1200			      [AC_MSG_RESULT([no])
1201			       AC_MSG_ERROR([Python interpreter is too old])])
1202      am_display_PYTHON=$PYTHON
1203    else
1204      # Otherwise, try each interpreter until we find one that satisfies
1205      # VERSION.
1206      AC_CACHE_CHECK([for a Python interpreter with version >= $1],
1207	[am_cv_pathless_PYTHON],[
1208	for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
1209	  test "$am_cv_pathless_PYTHON" = none && break
1210	  AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
1211	done])
1212      # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
1213      if test "$am_cv_pathless_PYTHON" = none; then
1214	PYTHON=:
1215      else
1216        AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
1217      fi
1218      am_display_PYTHON=$am_cv_pathless_PYTHON
1219    fi
1220  ])
1221
1222  if test "$PYTHON" = :; then
1223  dnl Run any user-specified action, or abort.
1224    m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
1225  else
1226
1227  dnl Query Python for its version number.  Getting [:3] seems to be
1228  dnl the best way to do this; it's what "site.py" does in the standard
1229  dnl library.
1230
1231  AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
1232    [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
1233  AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
1234
1235  dnl Use the values of $prefix and $exec_prefix for the corresponding
1236  dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX.  These are made
1237  dnl distinct variables so they can be overridden if need be.  However,
1238  dnl general consensus is that you shouldn't need this ability.
1239
1240  AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
1241  AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
1242
1243  dnl At times (like when building shared libraries) you may want
1244  dnl to know which OS platform Python thinks this is.
1245
1246  AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
1247    [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
1248  AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
1249
1250  # Just factor out some code duplication.
1251  am_python_setup_sysconfig="\
1252import sys
1253# Prefer sysconfig over distutils.sysconfig, for better compatibility
1254# with python 3.x.  See automake bug#10227.
1255try:
1256    import sysconfig
1257except ImportError:
1258    can_use_sysconfig = 0
1259else:
1260    can_use_sysconfig = 1
1261# Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
1262# <https://github.com/pypa/virtualenv/issues/118>
1263try:
1264    from platform import python_implementation
1265    if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
1266        can_use_sysconfig = 0
1267except ImportError:
1268    pass"
1269
1270  dnl Set up 4 directories:
1271
1272  dnl pythondir -- where to install python scripts.  This is the
1273  dnl   site-packages directory, not the python standard library
1274  dnl   directory like in previous automake betas.  This behavior
1275  dnl   is more consistent with lispdir.m4 for example.
1276  dnl Query distutils for this directory.
1277  AC_CACHE_CHECK([for $am_display_PYTHON script directory],
1278    [am_cv_python_pythondir],
1279    [if test "x$prefix" = xNONE
1280     then
1281       am_py_prefix=$ac_default_prefix
1282     else
1283       am_py_prefix=$prefix
1284     fi
1285     am_cv_python_pythondir=`$PYTHON -c "
1286$am_python_setup_sysconfig
1287if can_use_sysconfig:
1288    sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
1289else:
1290    from distutils import sysconfig
1291    sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
1292sys.stdout.write(sitedir)"`
1293     case $am_cv_python_pythondir in
1294     $am_py_prefix*)
1295       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
1296       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
1297       ;;
1298     *)
1299       case $am_py_prefix in
1300         /usr|/System*) ;;
1301         *)
1302	  am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
1303	  ;;
1304       esac
1305       ;;
1306     esac
1307    ])
1308  AC_SUBST([pythondir], [$am_cv_python_pythondir])
1309
1310  dnl pkgpythondir -- $PACKAGE directory under pythondir.  Was
1311  dnl   PYTHON_SITE_PACKAGE in previous betas, but this naming is
1312  dnl   more consistent with the rest of automake.
1313
1314  AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
1315
1316  dnl pyexecdir -- directory for installing python extension modules
1317  dnl   (shared libraries)
1318  dnl Query distutils for this directory.
1319  AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
1320    [am_cv_python_pyexecdir],
1321    [if test "x$exec_prefix" = xNONE
1322     then
1323       am_py_exec_prefix=$am_py_prefix
1324     else
1325       am_py_exec_prefix=$exec_prefix
1326     fi
1327     am_cv_python_pyexecdir=`$PYTHON -c "
1328$am_python_setup_sysconfig
1329if can_use_sysconfig:
1330    sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
1331else:
1332    from distutils import sysconfig
1333    sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
1334sys.stdout.write(sitedir)"`
1335     case $am_cv_python_pyexecdir in
1336     $am_py_exec_prefix*)
1337       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
1338       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
1339       ;;
1340     *)
1341       case $am_py_exec_prefix in
1342         /usr|/System*) ;;
1343         *)
1344	   am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
1345	   ;;
1346       esac
1347       ;;
1348     esac
1349    ])
1350  AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
1351
1352  dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
1353
1354  AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
1355
1356  dnl Run any user-specified action.
1357  $2
1358  fi
1359
1360])
1361
1362
1363# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1364# ---------------------------------------------------------------------------
1365# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
1366# Run ACTION-IF-FALSE otherwise.
1367# This test uses sys.hexversion instead of the string equivalent (first
1368# word of sys.version), in order to cope with versions such as 2.2c1.
1369# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
1370AC_DEFUN([AM_PYTHON_CHECK_VERSION],
1371 [prog="import sys
1372# split strings by '.' and convert to numeric.  Append some zeros
1373# because we need at least 4 digits for the hex conversion.
1374# map returns an iterator in Python 3.0 and a list in 2.x
1375minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
1376minverhex = 0
1377# xrange is not present in Python 3.0 and range returns an iterator
1378for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
1379sys.exit(sys.hexversion < minverhex)"
1380  AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
1381
1382# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1383#
1384# This file is free software; the Free Software Foundation
1385# gives unlimited permission to copy and/or distribute it,
1386# with or without modifications, as long as this notice is preserved.
1387
1388# AM_RUN_LOG(COMMAND)
1389# -------------------
1390# Run COMMAND, save the exit status in ac_status, and log it.
1391# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1392AC_DEFUN([AM_RUN_LOG],
1393[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1394   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1395   ac_status=$?
1396   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1397   (exit $ac_status); }])
1398
1399# Check to make sure that the build environment is sane.    -*- Autoconf -*-
1400
1401# Copyright (C) 1996-2020 Free Software Foundation, Inc.
1402#
1403# This file is free software; the Free Software Foundation
1404# gives unlimited permission to copy and/or distribute it,
1405# with or without modifications, as long as this notice is preserved.
1406
1407# AM_SANITY_CHECK
1408# ---------------
1409AC_DEFUN([AM_SANITY_CHECK],
1410[AC_MSG_CHECKING([whether build environment is sane])
1411# Reject unsafe characters in $srcdir or the absolute working directory
1412# name.  Accept space and tab only in the latter.
1413am_lf='
1414'
1415case `pwd` in
1416  *[[\\\"\#\$\&\'\`$am_lf]]*)
1417    AC_MSG_ERROR([unsafe absolute working directory name]);;
1418esac
1419case $srcdir in
1420  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
1421    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1422esac
1423
1424# Do 'set' in a subshell so we don't clobber the current shell's
1425# arguments.  Must try -L first in case configure is actually a
1426# symlink; some systems play weird games with the mod time of symlinks
1427# (eg FreeBSD returns the mod time of the symlink's containing
1428# directory).
1429if (
1430   am_has_slept=no
1431   for am_try in 1 2; do
1432     echo "timestamp, slept: $am_has_slept" > conftest.file
1433     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1434     if test "$[*]" = "X"; then
1435	# -L didn't work.
1436	set X `ls -t "$srcdir/configure" conftest.file`
1437     fi
1438     if test "$[*]" != "X $srcdir/configure conftest.file" \
1439	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
1440
1441	# If neither matched, then we have a broken ls.  This can happen
1442	# if, for instance, CONFIG_SHELL is bash and it inherits a
1443	# broken ls alias from the environment.  This has actually
1444	# happened.  Such a system could not be considered "sane".
1445	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
1446  alias in your environment])
1447     fi
1448     if test "$[2]" = conftest.file || test $am_try -eq 2; then
1449       break
1450     fi
1451     # Just in case.
1452     sleep 1
1453     am_has_slept=yes
1454   done
1455   test "$[2]" = conftest.file
1456   )
1457then
1458   # Ok.
1459   :
1460else
1461   AC_MSG_ERROR([newly created file is older than distributed files!
1462Check your system clock])
1463fi
1464AC_MSG_RESULT([yes])
1465# If we didn't sleep, we still need to ensure time stamps of config.status and
1466# generated files are strictly newer.
1467am_sleep_pid=
1468if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1469  ( sleep 1 ) &
1470  am_sleep_pid=$!
1471fi
1472AC_CONFIG_COMMANDS_PRE(
1473  [AC_MSG_CHECKING([that generated files are newer than configure])
1474   if test -n "$am_sleep_pid"; then
1475     # Hide warnings about reused PIDs.
1476     wait $am_sleep_pid 2>/dev/null
1477   fi
1478   AC_MSG_RESULT([done])])
1479rm -f conftest.file
1480])
1481
1482# Copyright (C) 2009-2020 Free Software Foundation, Inc.
1483#
1484# This file is free software; the Free Software Foundation
1485# gives unlimited permission to copy and/or distribute it,
1486# with or without modifications, as long as this notice is preserved.
1487
1488# AM_SILENT_RULES([DEFAULT])
1489# --------------------------
1490# Enable less verbose build rules; with the default set to DEFAULT
1491# ("yes" being less verbose, "no" or empty being verbose).
1492AC_DEFUN([AM_SILENT_RULES],
1493[AC_ARG_ENABLE([silent-rules], [dnl
1494AS_HELP_STRING(
1495  [--enable-silent-rules],
1496  [less verbose build output (undo: "make V=1")])
1497AS_HELP_STRING(
1498  [--disable-silent-rules],
1499  [verbose build output (undo: "make V=0")])dnl
1500])
1501case $enable_silent_rules in @%:@ (((
1502  yes) AM_DEFAULT_VERBOSITY=0;;
1503   no) AM_DEFAULT_VERBOSITY=1;;
1504    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1505esac
1506dnl
1507dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1508dnl do not support nested variable expansions.
1509dnl See automake bug#9928 and bug#10237.
1510am_make=${MAKE-make}
1511AC_CACHE_CHECK([whether $am_make supports nested variables],
1512   [am_cv_make_support_nested_variables],
1513   [if AS_ECHO([['TRUE=$(BAR$(V))
1514BAR0=false
1515BAR1=true
1516V=1
1517am__doit:
1518	@$(TRUE)
1519.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1520  am_cv_make_support_nested_variables=yes
1521else
1522  am_cv_make_support_nested_variables=no
1523fi])
1524if test $am_cv_make_support_nested_variables = yes; then
1525  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1526  AM_V='$(V)'
1527  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1528else
1529  AM_V=$AM_DEFAULT_VERBOSITY
1530  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1531fi
1532AC_SUBST([AM_V])dnl
1533AM_SUBST_NOTMAKE([AM_V])dnl
1534AC_SUBST([AM_DEFAULT_V])dnl
1535AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1536AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1537AM_BACKSLASH='\'
1538AC_SUBST([AM_BACKSLASH])dnl
1539_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1540])
1541
1542# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1543#
1544# This file is free software; the Free Software Foundation
1545# gives unlimited permission to copy and/or distribute it,
1546# with or without modifications, as long as this notice is preserved.
1547
1548# AM_PROG_INSTALL_STRIP
1549# ---------------------
1550# One issue with vendor 'install' (even GNU) is that you can't
1551# specify the program used to strip binaries.  This is especially
1552# annoying in cross-compiling environments, where the build's strip
1553# is unlikely to handle the host's binaries.
1554# Fortunately install-sh will honor a STRIPPROG variable, so we
1555# always use install-sh in "make install-strip", and initialize
1556# STRIPPROG with the value of the STRIP variable (set by the user).
1557AC_DEFUN([AM_PROG_INSTALL_STRIP],
1558[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1559# Installed binaries are usually stripped using 'strip' when the user
1560# run "make install-strip".  However 'strip' might not be the right
1561# tool to use in cross-compilation environments, therefore Automake
1562# will honor the 'STRIP' environment variable to overrule this program.
1563dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1564if test "$cross_compiling" != no; then
1565  AC_CHECK_TOOL([STRIP], [strip], :)
1566fi
1567INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1568AC_SUBST([INSTALL_STRIP_PROGRAM])])
1569
1570# Copyright (C) 2006-2020 Free Software Foundation, Inc.
1571#
1572# This file is free software; the Free Software Foundation
1573# gives unlimited permission to copy and/or distribute it,
1574# with or without modifications, as long as this notice is preserved.
1575
1576# _AM_SUBST_NOTMAKE(VARIABLE)
1577# ---------------------------
1578# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1579# This macro is traced by Automake.
1580AC_DEFUN([_AM_SUBST_NOTMAKE])
1581
1582# AM_SUBST_NOTMAKE(VARIABLE)
1583# --------------------------
1584# Public sister of _AM_SUBST_NOTMAKE.
1585AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1586
1587# Check how to create a tarball.                            -*- Autoconf -*-
1588
1589# Copyright (C) 2004-2020 Free Software Foundation, Inc.
1590#
1591# This file is free software; the Free Software Foundation
1592# gives unlimited permission to copy and/or distribute it,
1593# with or without modifications, as long as this notice is preserved.
1594
1595# _AM_PROG_TAR(FORMAT)
1596# --------------------
1597# Check how to create a tarball in format FORMAT.
1598# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1599#
1600# Substitute a variable $(am__tar) that is a command
1601# writing to stdout a FORMAT-tarball containing the directory
1602# $tardir.
1603#     tardir=directory && $(am__tar) > result.tar
1604#
1605# Substitute a variable $(am__untar) that extract such
1606# a tarball read from stdin.
1607#     $(am__untar) < result.tar
1608#
1609AC_DEFUN([_AM_PROG_TAR],
1610[# Always define AMTAR for backward compatibility.  Yes, it's still used
1611# in the wild :-(  We should find a proper way to deprecate it ...
1612AC_SUBST([AMTAR], ['$${TAR-tar}'])
1613
1614# We'll loop over all known methods to create a tar archive until one works.
1615_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1616
1617m4_if([$1], [v7],
1618  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1619
1620  [m4_case([$1],
1621    [ustar],
1622     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1623      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1624      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1625      # and bug#13588).
1626      am_max_uid=2097151 # 2^21 - 1
1627      am_max_gid=$am_max_uid
1628      # The $UID and $GID variables are not portable, so we need to resort
1629      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1630      # below are definitely unexpected, so allow the users to see them
1631      # (that is, avoid stderr redirection).
1632      am_uid=`id -u || echo unknown`
1633      am_gid=`id -g || echo unknown`
1634      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1635      if test $am_uid -le $am_max_uid; then
1636         AC_MSG_RESULT([yes])
1637      else
1638         AC_MSG_RESULT([no])
1639         _am_tools=none
1640      fi
1641      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1642      if test $am_gid -le $am_max_gid; then
1643         AC_MSG_RESULT([yes])
1644      else
1645        AC_MSG_RESULT([no])
1646        _am_tools=none
1647      fi],
1648
1649  [pax],
1650    [],
1651
1652  [m4_fatal([Unknown tar format])])
1653
1654  AC_MSG_CHECKING([how to create a $1 tar archive])
1655
1656  # Go ahead even if we have the value already cached.  We do so because we
1657  # need to set the values for the 'am__tar' and 'am__untar' variables.
1658  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1659
1660  for _am_tool in $_am_tools; do
1661    case $_am_tool in
1662    gnutar)
1663      for _am_tar in tar gnutar gtar; do
1664        AM_RUN_LOG([$_am_tar --version]) && break
1665      done
1666      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1667      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1668      am__untar="$_am_tar -xf -"
1669      ;;
1670    plaintar)
1671      # Must skip GNU tar: if it does not support --format= it doesn't create
1672      # ustar tarball either.
1673      (tar --version) >/dev/null 2>&1 && continue
1674      am__tar='tar chf - "$$tardir"'
1675      am__tar_='tar chf - "$tardir"'
1676      am__untar='tar xf -'
1677      ;;
1678    pax)
1679      am__tar='pax -L -x $1 -w "$$tardir"'
1680      am__tar_='pax -L -x $1 -w "$tardir"'
1681      am__untar='pax -r'
1682      ;;
1683    cpio)
1684      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1685      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1686      am__untar='cpio -i -H $1 -d'
1687      ;;
1688    none)
1689      am__tar=false
1690      am__tar_=false
1691      am__untar=false
1692      ;;
1693    esac
1694
1695    # If the value was cached, stop now.  We just wanted to have am__tar
1696    # and am__untar set.
1697    test -n "${am_cv_prog_tar_$1}" && break
1698
1699    # tar/untar a dummy directory, and stop if the command works.
1700    rm -rf conftest.dir
1701    mkdir conftest.dir
1702    echo GrepMe > conftest.dir/file
1703    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1704    rm -rf conftest.dir
1705    if test -s conftest.tar; then
1706      AM_RUN_LOG([$am__untar <conftest.tar])
1707      AM_RUN_LOG([cat conftest.dir/file])
1708      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1709    fi
1710  done
1711  rm -rf conftest.dir
1712
1713  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1714  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1715
1716AC_SUBST([am__tar])
1717AC_SUBST([am__untar])
1718]) # _AM_PROG_TAR
1719
1720m4_include([m4/attributes.m4])
1721m4_include([m4/libtool.m4])
1722m4_include([m4/ltoptions.m4])
1723m4_include([m4/ltsugar.m4])
1724m4_include([m4/ltversion.m4])
1725m4_include([m4/lt~obsolete.m4])
1726