~streib/g4term.git

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Janis Streib

30.03.22 bc34f45ca003196c9d727836dad724646bc37ba6

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8c7455	1	# generated automatically by aclocal 1.16.4 -- Autoconf --
JS	2
	3	# Copyright (C) 1996-2021 Free Software Foundation, Inc.
	4
	5	# This file is free software; the Free Software Foundation
	6	# gives unlimited permission to copy and/or distribute it,
	7	# with or without modifications, as long as this notice is preserved.
	8
	9	# This program is distributed in the hope that it will be useful,
	10	# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
	11	# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
	12	# PARTICULAR PURPOSE.
	13
	14	m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
	15	m4_ifndef([AC_AUTOCONF_VERSION],
	16	[m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
	17	m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
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	22
	23	# pkg.m4 - Macros to locate and utilise pkg-config. -- Autoconf --
	24	# serial 12 (pkg-config-0.29.2)
	25
	26	dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
	27	dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
	28	dnl
	29	dnl This program is free software; you can redistribute it and/or modify
	30	dnl it under the terms of the GNU General Public License as published by
	31	dnl the Free Software Foundation; either version 2 of the License, or
	32	dnl (at your option) any later version.
	33	dnl
	34	dnl This program is distributed in the hope that it will be useful, but
	35	dnl WITHOUT ANY WARRANTY; without even the implied warranty of
	36	dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	37	dnl General Public License for more details.
	38	dnl
	39	dnl You should have received a copy of the GNU General Public License
	40	dnl along with this program; if not, write to the Free Software
	41	dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	42	dnl 02111-1307, USA.
	43	dnl
	44	dnl As a special exception to the GNU General Public License, if you
	45	dnl distribute this file as part of a program that contains a
	46	dnl configuration script generated by Autoconf, you may include it under
	47	dnl the same distribution terms that you use for the rest of that
	48	dnl program.
	49
	50	dnl PKG_PREREQ(MIN-VERSION)
	51	dnl -----------------------
	52	dnl Since: 0.29
	53	dnl
	54	dnl Verify that the version of the pkg-config macros are at least
	55	dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
	56	dnl installed version of pkg-config, this checks the developer's version
	57	dnl of pkg.m4 when generating configure.
	58	dnl
	59	dnl To ensure that this macro is defined, also add:
	60	dnl m4_ifndef([PKG_PREREQ],
	61	dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
	62	dnl
	63	dnl See the "Since" comment for each macro you use to see what version
	64	dnl of the macros you require.
	65	m4_defun([PKG_PREREQ],
	66	[m4_define([PKG_MACROS_VERSION], [0.29.2])
	67	m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
	68	[m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
	69	])dnl PKG_PREREQ
	70
	71	dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
	72	dnl ----------------------------------
	73	dnl Since: 0.16
	74	dnl
	75	dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
	76	dnl first found in the path. Checks that the version of pkg-config found
	77	dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
	78	dnl used since that's the first version where most current features of
	79	dnl pkg-config existed.
	80	AC_DEFUN([PKG_PROG_PKG_CONFIG],
	81	[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
	82	m4_pattern_allow([^PKG_CONFIG(_(PATH\|LIBDIR\|SYSROOT_DIR\|ALLOW_SYSTEM_(CFLAGS\|LIBS)))?$])
	83	m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED\|TOP_BUILD_DIR\|DEBUG_SPEW)$])
	84	AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
	85	AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
	86	AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
	87
	88	if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
	89	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
	90	fi
	91	if test -n "$PKG_CONFIG"; then
	92	_pkg_min_version=m4_default([$1], [0.9.0])
	93	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
	94	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
	95	AC_MSG_RESULT([yes])
	96	else
	97	AC_MSG_RESULT([no])
	98	PKG_CONFIG=""
	99	fi
	100	fi[]dnl
	101	])dnl PKG_PROG_PKG_CONFIG
	102
	103	dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
	104	dnl -------------------------------------------------------------------
	105	dnl Since: 0.18
	106	dnl
	107	dnl Check to see whether a particular set of modules exists. Similar to
	108	dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
	109	dnl
	110	dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
	111	dnl only at the first occurence in configure.ac, so if the first place
	112	dnl it's called might be skipped (such as if it is within an "if", you
	113	dnl have to call PKG_CHECK_EXISTS manually
	114	AC_DEFUN([PKG_CHECK_EXISTS],
	115	[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
	116	if test -n "$PKG_CONFIG" && \
	117	AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
	118	m4_default([$2], [:])
	119	m4_ifvaln([$3], [else
	120	$3])dnl
	121	fi])
	122
	123	dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
	124	dnl ---------------------------------------------
	125	dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
	126	dnl pkg_failed based on the result.
	127	m4_define([_PKG_CONFIG],
	128	[if test -n "$$1"; then
	129	pkg_cv_[]$1="$$1"
	130	elif test -n "$PKG_CONFIG"; then
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	132	[pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
	133	test "x$?" != "x0" && pkg_failed=yes ],
	134	[pkg_failed=yes])
	135	else
	136	pkg_failed=untried
	137	fi[]dnl
	138	])dnl _PKG_CONFIG
	139
	140	dnl _PKG_SHORT_ERRORS_SUPPORTED
	141	dnl ---------------------------
	142	dnl Internal check to see if pkg-config supports short errors.
	143	AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
	144	[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
	145	if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
	146	_pkg_short_errors_supported=yes
	147	else
	148	_pkg_short_errors_supported=no
	149	fi[]dnl
	150	])dnl _PKG_SHORT_ERRORS_SUPPORTED
	151
	152
	153	dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
	154	dnl [ACTION-IF-NOT-FOUND])
	155	dnl --------------------------------------------------------------
	156	dnl Since: 0.4.0
	157	dnl
	158	dnl Note that if there is a possibility the first call to
	159	dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
	160	dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
	161	AC_DEFUN([PKG_CHECK_MODULES],
	162	[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
	163	AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
	164	AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
	165
	166	pkg_failed=no
	167	AC_MSG_CHECKING([for $2])
	168
	169	_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
	170	_PKG_CONFIG([$1][_LIBS], [libs], [$2])
	171
	172	m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
	173	and $1[]_LIBS to avoid the need to call pkg-config.
	174	See the pkg-config man page for more details.])
	175
	176	if test $pkg_failed = yes; then
	177	AC_MSG_RESULT([no])
	178	_PKG_SHORT_ERRORS_SUPPORTED
	179	if test $_pkg_short_errors_supported = yes; then
	180	$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
	181	else
	182	$1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
	183	fi
	184	# Put the nasty error message in config.log where it belongs
	185	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
	186
	187	m4_default([$4], [AC_MSG_ERROR(
	188	[Package requirements ($2) were not met:
	189
	190	$$1_PKG_ERRORS
	191
	192	Consider adjusting the PKG_CONFIG_PATH environment variable if you
	193	installed software in a non-standard prefix.
	194
	195	_PKG_TEXT])[]dnl
	196	])
	197	elif test $pkg_failed = untried; then
	198	AC_MSG_RESULT([no])
	199	m4_default([$4], [AC_MSG_FAILURE(
	200	[The pkg-config script could not be found or is too old. Make sure it
	201	is in your PATH or set the PKG_CONFIG environment variable to the full
	202	path to pkg-config.
	203
	204	_PKG_TEXT
	205
	206	To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
	207	])
	208	else
	209	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
	210	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
	211	AC_MSG_RESULT([yes])
	212	$3
	213	fi[]dnl
	214	])dnl PKG_CHECK_MODULES
	215
	216
	217	dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
	218	dnl [ACTION-IF-NOT-FOUND])
	219	dnl ---------------------------------------------------------------------
	220	dnl Since: 0.29
	221	dnl
	222	dnl Checks for existence of MODULES and gathers its build flags with
	223	dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
	224	dnl and VARIABLE-PREFIX_LIBS from --libs.
	225	dnl
	226	dnl Note that if there is a possibility the first call to
	227	dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
	228	dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
	229	dnl configure.ac.
	230	AC_DEFUN([PKG_CHECK_MODULES_STATIC],
	231	[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
	232	_save_PKG_CONFIG=$PKG_CONFIG
	233	PKG_CONFIG="$PKG_CONFIG --static"
	234	PKG_CHECK_MODULES($@)
	235	PKG_CONFIG=$_save_PKG_CONFIG[]dnl
	236	])dnl PKG_CHECK_MODULES_STATIC
	237
	238
	239	dnl PKG_INSTALLDIR([DIRECTORY])
	240	dnl -------------------------
	241	dnl Since: 0.27
	242	dnl
	243	dnl Substitutes the variable pkgconfigdir as the location where a module
	244	dnl should install pkg-config .pc files. By default the directory is
	245	dnl $libdir/pkgconfig, but the default can be changed by passing
	246	dnl DIRECTORY. The user can override through the --with-pkgconfigdir
	247	dnl parameter.
	248	AC_DEFUN([PKG_INSTALLDIR],
	249	[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
	250	m4_pushdef([pkg_description],
	251	[pkg-config installation directory @<:@]pkg_default[@:>@])
	252	AC_ARG_WITH([pkgconfigdir],
	253	[AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
	254	[with_pkgconfigdir=]pkg_default)
	255	AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
	256	m4_popdef([pkg_default])
	257	m4_popdef([pkg_description])
	258	])dnl PKG_INSTALLDIR
	259
	260
	261	dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
	262	dnl --------------------------------
	263	dnl Since: 0.27
	264	dnl
	265	dnl Substitutes the variable noarch_pkgconfigdir as the location where a
	266	dnl module should install arch-independent pkg-config .pc files. By
	267	dnl default the directory is $datadir/pkgconfig, but the default can be
	268	dnl changed by passing DIRECTORY. The user can override through the
	269	dnl --with-noarch-pkgconfigdir parameter.
	270	AC_DEFUN([PKG_NOARCH_INSTALLDIR],
	271	[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
	272	m4_pushdef([pkg_description],
	273	[pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
	274	AC_ARG_WITH([noarch-pkgconfigdir],
	275	[AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
	276	[with_noarch_pkgconfigdir=]pkg_default)
	277	AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
	278	m4_popdef([pkg_default])
	279	m4_popdef([pkg_description])
	280	])dnl PKG_NOARCH_INSTALLDIR
	281
	282
	283	dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
	284	dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
	285	dnl -------------------------------------------
	286	dnl Since: 0.28
	287	dnl
	288	dnl Retrieves the value of the pkg-config variable for the given module.
	289	AC_DEFUN([PKG_CHECK_VAR],
	290	[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
	291	AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
	292
	293	_PKG_CONFIG([$1], [variable="][$3]["], [$2])
	294	AS_VAR_COPY([$1], [pkg_cv_][$1])
	295
	296	AS_VAR_IF([$1], [""], [$5], [$4])dnl
	297	])dnl PKG_CHECK_VAR
	298
	299	# Copyright (C) 2002-2021 Free Software Foundation, Inc.
	300	#
	301	# This file is free software; the Free Software Foundation
	302	# gives unlimited permission to copy and/or distribute it,
	303	# with or without modifications, as long as this notice is preserved.
	304
	305	# AM_AUTOMAKE_VERSION(VERSION)
	306	# ----------------------------
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	309	# (This private macro should not be called outside this file.)
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	312	dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
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	335	# AM_AUX_DIR_EXPAND -- Autoconf --
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	337	# Copyright (C) 2001-2021 Free Software Foundation, Inc.
	338	#
	339	# This file is free software; the Free Software Foundation
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	389	# Copyright (C) 1997-2021 Free Software Foundation, Inc.
	390	#
	391	# This file is free software; the Free Software Foundation
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	419
	420	# Copyright (C) 1999-2021 Free Software Foundation, Inc.
	421	#
	422	# This file is free software; the Free Software Foundation
	423	# gives unlimited permission to copy and/or distribute it,
	424	# with or without modifications, as long as this notice is preserved.
	425
	426
	427	# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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	475	# side effect of compilation, but ICC will put the dependencies in
	476	# the current directory while Tru64 will put them in the object
	477	# directory.
	478	mkdir sub
	479
	480	am_cv_$1_dependencies_compiler_type=none
	481	if test "$am_compiler_list" = ""; then
	482	am_compiler_list=`sed -n ['s/^#$[a-zA-Z0-9]$)$/\1/p'] < ./depcomp`
	483	fi
	484	am__universal=false
	485	m4_case([$1], [CC],
	486	[case " $depcc " in #(
	487	\ -arch\ \ -arch\ *) am__universal=true ;;
	488	esac],
	489	[CXX],
	490	[case " $depcc " in #(
	491	\ -arch\ \ -arch\ *) am__universal=true ;;
	492	esac])
	493
	494	for depmode in $am_compiler_list; do
	495	# Setup a source with many dependencies, because some compilers
	496	# like to wrap large dependency lists on column 80 (with \), and
	497	# we should not choose a depcomp mode which is confused by this.
	498	#
	499	# We need to recreate these files for each test, as the compiler may
	500	# overwrite some of them when testing with obscure command lines.
	501	# This happens at least with the AIX C compiler.
	502	: > sub/conftest.c
	503	for i in 1 2 3 4 5 6; do
	504	echo '#include "conftst'$i'.h"' >> sub/conftest.c
	505	# Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
	506	# Solaris 10 /bin/sh.
	507	echo '/* dummy */' > sub/conftst$i.h
	508	done
	509	echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
	510
	511	# We check with '-c' and '-o' for the sake of the "dashmstdout"
	512	# mode. It turns out that the SunPro C++ compiler does not properly
	513	# handle '-M -o', and we need to detect this. Also, some Intel
	514	# versions had trouble with output in subdirs.
	515	am__obj=sub/conftest.${OBJEXT-o}
	516	am__minus_obj="-o $am__obj"
	517	case $depmode in
	518	gcc)
	519	# This depmode causes a compiler race in universal mode.
	520	test "$am__universal" = false \|\| continue
	521	;;
	522	nosideeffect)
	523	# After this tag, mechanisms are not by side-effect, so they'll
	524	# only be used when explicitly requested.
	525	if test "x$enable_dependency_tracking" = xyes; then
	526	continue
	527	else
	528	break
	529	fi
	530	;;
	531	msvc7 \| msvc7msys \| msvisualcpp \| msvcmsys)
	532	# This compiler won't grok '-c -o', but also, the minuso test has
	533	# not run yet. These depmodes are late enough in the game, and
	534	# so weak that their functioning should not be impacted.
	535	am__obj=conftest.${OBJEXT-o}
	536	am__minus_obj=
	537	;;
	538	none) break ;;
	539	esac
	540	if depmode=$depmode \
	541	source=sub/conftest.c object=$am__obj \
	542	depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
	543	$SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
	544	>/dev/null 2>conftest.err &&
	545	grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
	546	grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
	547	grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
	548	${MAKE-make} -s -f confmf > /dev/null 2>&1; then
	549	# icc doesn't choke on unknown options, it will just issue warnings
	550	# or remarks (even with -Werror). So we grep stderr for any message
	551	# that says an option was ignored or not supported.
	552	# When given -MP, icc 7.0 and 7.1 complain thusly:
	553	# icc: Command line warning: ignoring option '-M'; no argument required
	554	# The diagnosis changed in icc 8.0:
	555	# icc: Command line remark: option '-MP' not supported
	556	if (grep 'ignoring option' conftest.err \|\|
	557	grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
	558	am_cv_$1_dependencies_compiler_type=$depmode
	559	break
	560	fi
	561	fi
	562	done
	563
	564	cd ..
	565	rm -rf conftest.dir
	566	else
	567	am_cv_$1_dependencies_compiler_type=none
	568	fi
	569	])
	570	AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
	571	AM_CONDITIONAL([am__fastdep$1], [
	572	test "x$enable_dependency_tracking" != xno \
	573	&& test "$am_cv_$1_dependencies_compiler_type" = gcc3])
	574	])
	575
	576
	577	# AM_SET_DEPDIR
	578	# -------------
	579	# Choose a directory name for dependency files.
	580	# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
	581	AC_DEFUN([AM_SET_DEPDIR],
	582	[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
	583	AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
	584	])
	585
	586
	587	# AM_DEP_TRACK
	588	# ------------
	589	AC_DEFUN([AM_DEP_TRACK],
	590	[AC_ARG_ENABLE([dependency-tracking], [dnl
	591	AS_HELP_STRING(
	592	[--enable-dependency-tracking],
	593	[do not reject slow dependency extractors])
	594	AS_HELP_STRING(
	595	[--disable-dependency-tracking],
	596	[speeds up one-time build])])
	597	if test "x$enable_dependency_tracking" != xno; then
	598	am_depcomp="$ac_aux_dir/depcomp"
	599	AMDEPBACKSLASH='\'
	600	am__nodep='_no'
	601	fi
	602	AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
	603	AC_SUBST([AMDEPBACKSLASH])dnl
	604	_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
	605	AC_SUBST([am__nodep])dnl
	606	_AM_SUBST_NOTMAKE([am__nodep])dnl
	607	])
	608
	609	# Generate code to set up dependency tracking. -- Autoconf --
	610
	611	# Copyright (C) 1999-2021 Free Software Foundation, Inc.
	612	#
	613	# This file is free software; the Free Software Foundation
	614	# gives unlimited permission to copy and/or distribute it,
	615	# with or without modifications, as long as this notice is preserved.
	616
	617	# _AM_OUTPUT_DEPENDENCY_COMMANDS
	618	# ------------------------------
	619	AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
	620	[{
	621	# Older Autoconf quotes --file arguments for eval, but not when files
	622	# are listed without --file. Let's play safe and only enable the eval
	623	# if we detect the quoting.
	624	# TODO: see whether this extra hack can be removed once we start
	625	# requiring Autoconf 2.70 or later.
	626	AS_CASE([$CONFIG_FILES],
	627	[\'], [eval set x "$CONFIG_FILES"],
	628	[*], [set x $CONFIG_FILES])
	629	shift
	630	# Used to flag and report bootstrapping failures.
	631	am_rc=0
	632	for am_mf
	633	do
	634	# Strip MF so we end up with the name of the file.
	635	am_mf=`AS_ECHO(["$am_mf"]) \| sed -e 's/:.*$//'`
	636	# Check whether this is an Automake generated Makefile which includes
	637	# dependency-tracking related rules and includes.
	638	# Grep'ing the whole file directly is not great: AIX grep has a line
	639	# limit of 2048, but all sed's we know have understand at least 4000.
	640	sed -n 's,^am--depfiles:.*,X,p' "$am_mf" \| grep X >/dev/null 2>&1 \
	641	\|\| continue
	642	am_dirpart=`AS_DIRNAME(["$am_mf"])`
	643	am_filepart=`AS_BASENAME(["$am_mf"])`
	644	AM_RUN_LOG([cd "$am_dirpart" \
	645	&& sed -e '/# am--include-marker/d' "$am_filepart" \
	646	\| $MAKE -f - am--depfiles]) \|\| am_rc=$?
	647	done
	648	if test $am_rc -ne 0; then
	649	AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
	650	for automatic dependency tracking. If GNU make was not used, consider
	651	re-running the configure script with MAKE="gmake" (or whatever is
	652	necessary). You can also try re-running configure with the
	653	'--disable-dependency-tracking' option to at least be able to build
	654	the package (albeit without support for automatic dependency tracking).])
	655	fi
	656	AS_UNSET([am_dirpart])
	657	AS_UNSET([am_filepart])
	658	AS_UNSET([am_mf])
	659	AS_UNSET([am_rc])
	660	rm -f conftest-deps.mk
	661	}
	662	])# _AM_OUTPUT_DEPENDENCY_COMMANDS
	663
	664
	665	# AM_OUTPUT_DEPENDENCY_COMMANDS
	666	# -----------------------------
	667	# This macro should only be invoked once -- use via AC_REQUIRE.
	668	#
	669	# This code is only required when automatic dependency tracking is enabled.
	670	# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
	671	# order to bootstrap the dependency handling code.
	672	AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
	673	[AC_CONFIG_COMMANDS([depfiles],
	674	[test x"$AMDEP_TRUE" != x"" \|\| _AM_OUTPUT_DEPENDENCY_COMMANDS],
	675	[AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
	676
	677	# Do all the work for Automake. -- Autoconf --
	678
	679	# Copyright (C) 1996-2021 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	# This macro actually does too much. Some checks are only needed if
	686	# your package does certain things. But this isn't really a big deal.
	687
	688	dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
	689	m4_define([AC_PROG_CC],
	690	m4_defn([AC_PROG_CC])
	691	[_AM_PROG_CC_C_O
	692	])
	693
	694	# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
	695	# AM_INIT_AUTOMAKE([OPTIONS])
	696	# -----------------------------------------------
	697	# The call with PACKAGE and VERSION arguments is the old style
	698	# call (pre autoconf-2.50), which is being phased out. PACKAGE
	699	# and VERSION should now be passed to AC_INIT and removed from
	700	# the call to AM_INIT_AUTOMAKE.
	701	# We support both call styles for the transition. After
	702	# the next Automake release, Autoconf can make the AC_INIT
	703	# arguments mandatory, and then we can depend on a new Autoconf
	704	# release and drop the old call support.
	705	AC_DEFUN([AM_INIT_AUTOMAKE],
	706	[AC_PREREQ([2.65])dnl
	707	dnl Autoconf wants to disallow AM_ names. We explicitly allow
	708	dnl the ones we care about.
	709	m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
	710	AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
	711	AC_REQUIRE([AC_PROG_INSTALL])dnl
	712	if test "`cd $srcdir && pwd`" != "`pwd`"; then
	713	# Use -I$(srcdir) only when $(srcdir) != ., so that make's output
	714	# is not polluted with repeated "-I."
	715	AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
	716	# test to see if srcdir already configured
	717	if test -f $srcdir/config.status; then
	718	AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
	719	fi
	720	fi
	721
	722	# test whether we have cygpath
	723	if test -z "$CYGPATH_W"; then
	724	if (cygpath --version) >/dev/null 2>/dev/null; then
	725	CYGPATH_W='cygpath -w'
	726	else
	727	CYGPATH_W=echo
	728	fi
	729	fi
	730	AC_SUBST([CYGPATH_W])
	731
	732	# Define the identity of the package.
	733	dnl Distinguish between old-style and new-style calls.
	734	m4_ifval([$2],
	735	[AC_DIAGNOSE([obsolete],
	736	[$0: two- and three-arguments forms are deprecated.])
	737	m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
	738	AC_SUBST([PACKAGE], [$1])dnl
	739	AC_SUBST([VERSION], [$2])],
	740	[_AM_SET_OPTIONS([$1])dnl
	741	dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
	742	m4_if(
	743	m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
	744	[ok:ok],,
	745	[m4_fatal([AC_INIT should be called with package and version arguments])])dnl
	746	AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
	747	AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
	748
	749	_AM_IF_OPTION([no-define],,
	750	[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
	751	AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
	752
	753	# Some tools Automake needs.
	754	AC_REQUIRE([AM_SANITY_CHECK])dnl
	755	AC_REQUIRE([AC_ARG_PROGRAM])dnl
	756	AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
	757	AM_MISSING_PROG([AUTOCONF], [autoconf])
	758	AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
	759	AM_MISSING_PROG([AUTOHEADER], [autoheader])
	760	AM_MISSING_PROG([MAKEINFO], [makeinfo])
	761	AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
	762	AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
	763	AC_REQUIRE([AC_PROG_MKDIR_P])dnl
	764	# For better backward compatibility. To be removed once Automake 1.9.x
	765	# dies out for good. For more background, see:
	766	# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
	767	# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
	768	AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
	769	# We need awk for the "check" target (and possibly the TAP driver). The
	770	# system "awk" is bad on some platforms.
	771	AC_REQUIRE([AC_PROG_AWK])dnl
	772	AC_REQUIRE([AC_PROG_MAKE_SET])dnl
	773	AC_REQUIRE([AM_SET_LEADING_DOT])dnl
	774	_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
	775	[_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
	776	[_AM_PROG_TAR([v7])])])
	777	_AM_IF_OPTION([no-dependencies],,
	778	[AC_PROVIDE_IFELSE([AC_PROG_CC],
	779	[_AM_DEPENDENCIES([CC])],
	780	[m4_define([AC_PROG_CC],
	781	m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
	782	AC_PROVIDE_IFELSE([AC_PROG_CXX],
	783	[_AM_DEPENDENCIES([CXX])],
	784	[m4_define([AC_PROG_CXX],
	785	m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
	786	AC_PROVIDE_IFELSE([AC_PROG_OBJC],
	787	[_AM_DEPENDENCIES([OBJC])],
	788	[m4_define([AC_PROG_OBJC],
	789	m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
	790	AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
	791	[_AM_DEPENDENCIES([OBJCXX])],
	792	[m4_define([AC_PROG_OBJCXX],
	793	m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
	794	])
	795	# Variables for tags utilities; see am/tags.am
	796	if test -z "$CTAGS"; then
	797	CTAGS=ctags
	798	fi
	799	AC_SUBST([CTAGS])
	800	if test -z "$ETAGS"; then
	801	ETAGS=etags
	802	fi
	803	AC_SUBST([ETAGS])
	804	if test -z "$CSCOPE"; then
	805	CSCOPE=cscope
	806	fi
	807	AC_SUBST([CSCOPE])
	808
	809	AC_REQUIRE([AM_SILENT_RULES])dnl
	810	dnl The testsuite driver may need to know about EXEEXT, so add the
	811	dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
	812	dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
	813	AC_CONFIG_COMMANDS_PRE(dnl
	814	[m4_provide_if([_AM_COMPILER_EXEEXT],
	815	[AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
	816
	817	# POSIX will say in a future version that running "rm -f" with no argument
	818	# is OK; and we want to be able to make that assumption in our Makefile
	819	# recipes. So use an aggressive probe to check that the usage we want is
	820	# actually supported "in the wild" to an acceptable degree.
	821	# See automake bug#10828.
	822	# To make any issue more visible, cause the running configure to be aborted
	823	# by default if the 'rm' program in use doesn't match our expectations; the
	824	# user can still override this though.
	825	if rm -f && rm -fr && rm -rf; then : OK; else
	826	cat >&2 <<'END'
	827	Oops!
	828
	829	Your 'rm' program seems unable to run without file operands specified
	830	on the command line, even when the '-f' option is present. This is contrary
	831	to the behaviour of most rm programs out there, and not conforming with
	832	the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
	833
	834	Please tell bug-automake@gnu.org about your system, including the value
	835	of your $PATH and any error possibly output before this message. This
	836	can help us improve future automake versions.
	837
	838	END
	839	if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
	840	echo 'Configuration will proceed anyway, since you have set the' >&2
	841	echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
	842	echo >&2
	843	else
	844	cat >&2 <<'END'
	845	Aborting the configuration process, to ensure you take notice of the issue.
	846
	847	You can download and install GNU coreutils to get an 'rm' implementation
	848	that behaves properly: <https://www.gnu.org/software/coreutils/>.
	849
	850	If you want to complete the configuration process using your problematic
	851	'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
	852	to "yes", and re-run configure.
	853
	854	END
	855	AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
	856	fi
	857	fi
	858	dnl The trailing newline in this macro's definition is deliberate, for
	859	dnl backward compatibility and to allow trailing 'dnl'-style comments
	860	dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
	861	])
	862
	863	dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
	864	dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
	865	dnl mangled by Autoconf and run in a shell conditional statement.
	866	m4_define([_AC_COMPILER_EXEEXT],
	867	m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
	868
	869	# When config.status generates a header, we must update the stamp-h file.
	870	# This file resides in the same directory as the config header
	871	# that is generated. The stamp files are numbered to have different names.
	872
	873	# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
	874	# loop where config.status creates the headers, so we can generate
	875	# our stamp files there.
	876	AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
	877	[# Compute $1's index in $config_headers.
	878	_am_arg=$1
	879	_am_stamp_count=1
	880	for _am_header in $config_headers :; do
	881	case $_am_header in
	882	$_am_arg \| $_am_arg:* )
	883	break ;;
	884	* )
	885	_am_stamp_count=`expr $_am_stamp_count + 1` ;;
	886	esac
	887	done
	888	echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
	889
	890	# Copyright (C) 2001-2021 Free Software Foundation, Inc.
	891	#
	892	# This file is free software; the Free Software Foundation
	893	# gives unlimited permission to copy and/or distribute it,
	894	# with or without modifications, as long as this notice is preserved.
	895
	896	# AM_PROG_INSTALL_SH
	897	# ------------------
	898	# Define $install_sh.
	899	AC_DEFUN([AM_PROG_INSTALL_SH],
	900	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
	901	if test x"${install_sh+set}" != xset; then
	902	case $am_aux_dir in
	903	\ \| \ )
	904	install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
	905	*)
	906	install_sh="\${SHELL} $am_aux_dir/install-sh"
	907	esac
	908	fi
	909	AC_SUBST([install_sh])])
	910
	911	# Copyright (C) 2003-2021 Free Software Foundation, Inc.
	912	#
	913	# This file is free software; the Free Software Foundation
	914	# gives unlimited permission to copy and/or distribute it,
	915	# with or without modifications, as long as this notice is preserved.
	916
	917	# Check whether the underlying file-system supports filenames
	918	# with a leading dot. For instance MS-DOS doesn't.
	919	AC_DEFUN([AM_SET_LEADING_DOT],
	920	[rm -rf .tst 2>/dev/null
	921	mkdir .tst 2>/dev/null
	922	if test -d .tst; then
	923	am__leading_dot=.
	924	else
	925	am__leading_dot=_
	926	fi
	927	rmdir .tst 2>/dev/null
	928	AC_SUBST([am__leading_dot])])
	929
	930	# Check to see how 'make' treats includes. -- Autoconf --
	931
	932	# Copyright (C) 2001-2021 Free Software Foundation, Inc.
	933	#
	934	# This file is free software; the Free Software Foundation
	935	# gives unlimited permission to copy and/or distribute it,
	936	# with or without modifications, as long as this notice is preserved.
	937
	938	# AM_MAKE_INCLUDE()
	939	# -----------------
	940	# Check whether make has an 'include' directive that can support all
	941	# the idioms we need for our automatic dependency tracking code.
	942	AC_DEFUN([AM_MAKE_INCLUDE],
	943	[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
	944	cat > confinc.mk << 'END'
	945	am__doit:
	946	@echo this is the am__doit target >confinc.out
	947	.PHONY: am__doit
	948	END
	949	am__include="#"
	950	am__quote=
	951	# BSD make does it like this.
	952	echo '.include "confinc.mk" # ignored' > confmf.BSD
	953	# Other make implementations (GNU, Solaris 10, AIX) do it like this.
	954	echo 'include confinc.mk # ignored' > confmf.GNU
	955	_am_result=no
	956	for s in GNU BSD; do
	957	AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
	958	AS_CASE([$?:`cat confinc.out 2>/dev/null`],
	959	['0:this is the am__doit target'],
	960	[AS_CASE([$s],
	961	[BSD], [am__include='.include' am__quote='"'],
	962	[am__include='include' am__quote=''])])
	963	if test "$am__include" != "#"; then
	964	_am_result="yes ($s style)"
	965	break
	966	fi
	967	done
	968	rm -f confinc.* confmf.*
	969	AC_MSG_RESULT([${_am_result}])
	970	AC_SUBST([am__include])])
	971	AC_SUBST([am__quote])])
	972
	973	# Fake the existence of programs that GNU maintainers use. -- Autoconf --
	974
	975	# Copyright (C) 1997-2021 Free Software Foundation, Inc.
	976	#
	977	# This file is free software; the Free Software Foundation
	978	# gives unlimited permission to copy and/or distribute it,
	979	# with or without modifications, as long as this notice is preserved.
	980
	981	# AM_MISSING_PROG(NAME, PROGRAM)
	982	# ------------------------------
	983	AC_DEFUN([AM_MISSING_PROG],
	984	[AC_REQUIRE([AM_MISSING_HAS_RUN])
	985	$1=${$1-"${am_missing_run}$2"}
	986	AC_SUBST($1)])
	987
	988	# AM_MISSING_HAS_RUN
	989	# ------------------
	990	# Define MISSING if not defined so far and test if it is modern enough.
	991	# If it is, set am_missing_run to use it, otherwise, to nothing.
	992	AC_DEFUN([AM_MISSING_HAS_RUN],
	993	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
	994	AC_REQUIRE_AUX_FILE([missing])dnl
	995	if test x"${MISSING+set}" != xset; then
	996	MISSING="\${SHELL} '$am_aux_dir/missing'"
	997	fi
	998	# Use eval to expand $SHELL
	999	if eval "$MISSING --is-lightweight"; then
	1000	am_missing_run="$MISSING "
	1001	else
	1002	am_missing_run=
	1003	AC_MSG_WARN(['missing' script is too old or missing])
	1004	fi
	1005	])
	1006
	1007	# Helper functions for option handling. -- Autoconf --
	1008
	1009	# Copyright (C) 2001-2021 Free Software Foundation, Inc.
	1010	#
	1011	# This file is free software; the Free Software Foundation
	1012	# gives unlimited permission to copy and/or distribute it,
	1013	# with or without modifications, as long as this notice is preserved.
	1014
	1015	# _AM_MANGLE_OPTION(NAME)
	1016	# -----------------------
	1017	AC_DEFUN([_AM_MANGLE_OPTION],
	1018	[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
	1019
	1020	# _AM_SET_OPTION(NAME)
	1021	# --------------------
	1022	# Set option NAME. Presently that only means defining a flag for this option.
	1023	AC_DEFUN([_AM_SET_OPTION],
	1024	[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
	1025
	1026	# _AM_SET_OPTIONS(OPTIONS)
	1027	# ------------------------
	1028	# OPTIONS is a space-separated list of Automake options.
	1029	AC_DEFUN([_AM_SET_OPTIONS],
	1030	[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
	1031
	1032	# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
	1033	# -------------------------------------------
	1034	# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
	1035	AC_DEFUN([_AM_IF_OPTION],
	1036	[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
	1037
	1038	# Copyright (C) 1999-2021 Free Software Foundation, Inc.
	1039	#
	1040	# This file is free software; the Free Software Foundation
	1041	# gives unlimited permission to copy and/or distribute it,
	1042	# with or without modifications, as long as this notice is preserved.
	1043
	1044	# _AM_PROG_CC_C_O
	1045	# ---------------
	1046	# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
	1047	# to automatically call this.
	1048	AC_DEFUN([_AM_PROG_CC_C_O],
	1049	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
	1050	AC_REQUIRE_AUX_FILE([compile])dnl
	1051	AC_LANG_PUSH([C])dnl
	1052	AC_CACHE_CHECK(
	1053	[whether $CC understands -c and -o together],
	1054	[am_cv_prog_cc_c_o],
	1055	[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
	1056	# Make sure it works both with $CC and with simple cc.
	1057	# Following AC_PROG_CC_C_O, we do the test twice because some
	1058	# compilers refuse to overwrite an existing .o file with -o,
	1059	# though they will create one.
	1060	am_cv_prog_cc_c_o=yes
	1061	for am_i in 1 2; do
	1062	if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
	1063	&& test -f conftest2.$ac_objext; then
	1064	: OK
	1065	else
	1066	am_cv_prog_cc_c_o=no
	1067	break
	1068	fi
	1069	done
	1070	rm -f core conftest*
	1071	unset am_i])
	1072	if test "$am_cv_prog_cc_c_o" != yes; then
	1073	# Losing compiler, so override with the script.
	1074	# FIXME: It is wrong to rewrite CC.
	1075	# But if we don't then we get into trouble of one sort or another.
	1076	# A longer-term fix would be to have automake use am__CC in this case,
	1077	# and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
	1078	CC="$am_aux_dir/compile $CC"
	1079	fi
	1080	AC_LANG_POP([C])])
	1081
	1082	# For backward compatibility.
	1083	AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
	1084
	1085	# Copyright (C) 2001-2021 Free Software Foundation, Inc.
	1086	#
	1087	# This file is free software; the Free Software Foundation
	1088	# gives unlimited permission to copy and/or distribute it,
	1089	# with or without modifications, as long as this notice is preserved.
	1090
	1091	# AM_RUN_LOG(COMMAND)
	1092	# -------------------
	1093	# Run COMMAND, save the exit status in ac_status, and log it.
	1094	# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
	1095	AC_DEFUN([AM_RUN_LOG],
	1096	[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
	1097	($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
	1098	ac_status=$?
	1099	echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
	1100	(exit $ac_status); }])
	1101
	1102	# Check to make sure that the build environment is sane. -- Autoconf --
	1103
	1104	# Copyright (C) 1996-2021 Free Software Foundation, Inc.
	1105	#
	1106	# This file is free software; the Free Software Foundation
	1107	# gives unlimited permission to copy and/or distribute it,
	1108	# with or without modifications, as long as this notice is preserved.
	1109
	1110	# AM_SANITY_CHECK
	1111	# ---------------
	1112	AC_DEFUN([AM_SANITY_CHECK],
	1113	[AC_MSG_CHECKING([whether build environment is sane])
	1114	# Reject unsafe characters in $srcdir or the absolute working directory
	1115	# name. Accept space and tab only in the latter.
	1116	am_lf='
	1117	'
	1118	case `pwd` in
	1119	[[\\\"\#\$\&\'\`$am_lf]])
	1120	AC_MSG_ERROR([unsafe absolute working directory name]);;
	1121	esac
	1122	case $srcdir in
	1123	[[\\\"\#\$\&\'\`$am_lf\ \ ]])
	1124	AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
	1125	esac
	1126
	1127	# Do 'set' in a subshell so we don't clobber the current shell's
	1128	# arguments. Must try -L first in case configure is actually a
	1129	# symlink; some systems play weird games with the mod time of symlinks
	1130	# (eg FreeBSD returns the mod time of the symlink's containing
	1131	# directory).
	1132	if (
	1133	am_has_slept=no
	1134	for am_try in 1 2; do
	1135	echo "timestamp, slept: $am_has_slept" > conftest.file
	1136	set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
	1137	if test "$[*]" = "X"; then
	1138	# -L didn't work.
	1139	set X `ls -t "$srcdir/configure" conftest.file`
	1140	fi
	1141	if test "$[*]" != "X $srcdir/configure conftest.file" \
	1142	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
	1143
	1144	# If neither matched, then we have a broken ls. This can happen
	1145	# if, for instance, CONFIG_SHELL is bash and it inherits a
	1146	# broken ls alias from the environment. This has actually
	1147	# happened. Such a system could not be considered "sane".
	1148	AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
	1149	alias in your environment])
	1150	fi
	1151	if test "$[2]" = conftest.file \|\| test $am_try -eq 2; then
	1152	break
	1153	fi
	1154	# Just in case.
	1155	sleep 1
	1156	am_has_slept=yes
	1157	done
	1158	test "$[2]" = conftest.file
	1159	)
	1160	then
	1161	# Ok.
	1162	:
	1163	else
	1164	AC_MSG_ERROR([newly created file is older than distributed files!
	1165	Check your system clock])
	1166	fi
	1167	AC_MSG_RESULT([yes])
	1168	# If we didn't sleep, we still need to ensure time stamps of config.status and
	1169	# generated files are strictly newer.
	1170	am_sleep_pid=
	1171	if grep 'slept: no' conftest.file >/dev/null 2>&1; then
	1172	( sleep 1 ) &
	1173	am_sleep_pid=$!
	1174	fi
	1175	AC_CONFIG_COMMANDS_PRE(
	1176	[AC_MSG_CHECKING([that generated files are newer than configure])
	1177	if test -n "$am_sleep_pid"; then
	1178	# Hide warnings about reused PIDs.
	1179	wait $am_sleep_pid 2>/dev/null
	1180	fi
	1181	AC_MSG_RESULT([done])])
	1182	rm -f conftest.file
	1183	])
	1184
	1185	# Copyright (C) 2009-2021 Free Software Foundation, Inc.
	1186	#
	1187	# This file is free software; the Free Software Foundation
	1188	# gives unlimited permission to copy and/or distribute it,
	1189	# with or without modifications, as long as this notice is preserved.
	1190
	1191	# AM_SILENT_RULES([DEFAULT])
	1192	# --------------------------
	1193	# Enable less verbose build rules; with the default set to DEFAULT
	1194	# ("yes" being less verbose, "no" or empty being verbose).
	1195	AC_DEFUN([AM_SILENT_RULES],
	1196	[AC_ARG_ENABLE([silent-rules], [dnl
	1197	AS_HELP_STRING(
	1198	[--enable-silent-rules],
	1199	[less verbose build output (undo: "make V=1")])
	1200	AS_HELP_STRING(
	1201	[--disable-silent-rules],
	1202	[verbose build output (undo: "make V=0")])dnl
	1203	])
	1204	case $enable_silent_rules in @%:@ (((
	1205	yes) AM_DEFAULT_VERBOSITY=0;;
	1206	no) AM_DEFAULT_VERBOSITY=1;;
	1207	*) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
	1208	esac
	1209	dnl
	1210	dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
	1211	dnl do not support nested variable expansions.
	1212	dnl See automake bug#9928 and bug#10237.
	1213	am_make=${MAKE-make}
	1214	AC_CACHE_CHECK([whether $am_make supports nested variables],
	1215	[am_cv_make_support_nested_variables],
	1216	[if AS_ECHO([['TRUE=$(BAR$(V))
	1217	BAR0=false
	1218	BAR1=true
	1219	V=1
	1220	am__doit:
	1221	@$(TRUE)
	1222	.PHONY: am__doit']]) \| $am_make -f - >/dev/null 2>&1; then
	1223	am_cv_make_support_nested_variables=yes
	1224	else
	1225	am_cv_make_support_nested_variables=no
	1226	fi])
	1227	if test $am_cv_make_support_nested_variables = yes; then
	1228	dnl Using '$V' instead of '$(V)' breaks IRIX make.
	1229	AM_V='$(V)'
	1230	AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
	1231	else
	1232	AM_V=$AM_DEFAULT_VERBOSITY
	1233	AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
	1234	fi
	1235	AC_SUBST([AM_V])dnl
	1236	AM_SUBST_NOTMAKE([AM_V])dnl
	1237	AC_SUBST([AM_DEFAULT_V])dnl
	1238	AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
	1239	AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
	1240	AM_BACKSLASH='\'
	1241	AC_SUBST([AM_BACKSLASH])dnl
	1242	_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
	1243	])
	1244
	1245	# Copyright (C) 2001-2021 Free Software Foundation, Inc.
	1246	#
	1247	# This file is free software; the Free Software Foundation
	1248	# gives unlimited permission to copy and/or distribute it,
	1249	# with or without modifications, as long as this notice is preserved.
	1250
	1251	# AM_PROG_INSTALL_STRIP
	1252	# ---------------------
	1253	# One issue with vendor 'install' (even GNU) is that you can't
	1254	# specify the program used to strip binaries. This is especially
	1255	# annoying in cross-compiling environments, where the build's strip
	1256	# is unlikely to handle the host's binaries.
	1257	# Fortunately install-sh will honor a STRIPPROG variable, so we
	1258	# always use install-sh in "make install-strip", and initialize
	1259	# STRIPPROG with the value of the STRIP variable (set by the user).
	1260	AC_DEFUN([AM_PROG_INSTALL_STRIP],
	1261	[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
	1262	# Installed binaries are usually stripped using 'strip' when the user
	1263	# run "make install-strip". However 'strip' might not be the right
	1264	# tool to use in cross-compilation environments, therefore Automake
	1265	# will honor the 'STRIP' environment variable to overrule this program.
	1266	dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
	1267	if test "$cross_compiling" != no; then
	1268	AC_CHECK_TOOL([STRIP], [strip], :)
	1269	fi
	1270	INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
	1271	AC_SUBST([INSTALL_STRIP_PROGRAM])])
	1272
	1273	# Copyright (C) 2006-2021 Free Software Foundation, Inc.
	1274	#
	1275	# This file is free software; the Free Software Foundation
	1276	# gives unlimited permission to copy and/or distribute it,
	1277	# with or without modifications, as long as this notice is preserved.
	1278
	1279	# _AM_SUBST_NOTMAKE(VARIABLE)
	1280	# ---------------------------
	1281	# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
	1282	# This macro is traced by Automake.
	1283	AC_DEFUN([_AM_SUBST_NOTMAKE])
	1284
	1285	# AM_SUBST_NOTMAKE(VARIABLE)
	1286	# --------------------------
	1287	# Public sister of _AM_SUBST_NOTMAKE.
	1288	AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
	1289
	1290	# Check how to create a tarball. -- Autoconf --
	1291
	1292	# Copyright (C) 2004-2021 Free Software Foundation, Inc.
	1293	#
	1294	# This file is free software; the Free Software Foundation
	1295	# gives unlimited permission to copy and/or distribute it,
	1296	# with or without modifications, as long as this notice is preserved.
	1297
	1298	# _AM_PROG_TAR(FORMAT)
	1299	# --------------------
	1300	# Check how to create a tarball in format FORMAT.
	1301	# FORMAT should be one of 'v7', 'ustar', or 'pax'.
	1302	#
	1303	# Substitute a variable $(am__tar) that is a command
	1304	# writing to stdout a FORMAT-tarball containing the directory
	1305	# $tardir.
	1306	# tardir=directory && $(am__tar) > result.tar
	1307	#
	1308	# Substitute a variable $(am__untar) that extract such
	1309	# a tarball read from stdin.
	1310	# $(am__untar) < result.tar
	1311	#
	1312	AC_DEFUN([_AM_PROG_TAR],
	1313	[# Always define AMTAR for backward compatibility. Yes, it's still used
	1314	# in the wild :-( We should find a proper way to deprecate it ...
	1315	AC_SUBST([AMTAR], ['$${TAR-tar}'])
	1316
	1317	# We'll loop over all known methods to create a tar archive until one works.
	1318	_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
	1319
	1320	m4_if([$1], [v7],
	1321	[am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
	1322
	1323	[m4_case([$1],
	1324	[ustar],
	1325	[# The POSIX 1988 'ustar' format is defined with fixed-size fields.
	1326	# There is notably a 21 bits limit for the UID and the GID. In fact,
	1327	# the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
	1328	# and bug#13588).
	1329	am_max_uid=2097151 # 2^21 - 1
	1330	am_max_gid=$am_max_uid
	1331	# The $UID and $GID variables are not portable, so we need to resort
	1332	# to the POSIX-mandated id(1) utility. Errors in the 'id' calls
	1333	# below are definitely unexpected, so allow the users to see them
	1334	# (that is, avoid stderr redirection).
	1335	am_uid=`id -u \|\| echo unknown`
	1336	am_gid=`id -g \|\| echo unknown`
	1337	AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
	1338	if test $am_uid -le $am_max_uid; then
	1339	AC_MSG_RESULT([yes])
	1340	else
	1341	AC_MSG_RESULT([no])
	1342	_am_tools=none
	1343	fi
	1344	AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
	1345	if test $am_gid -le $am_max_gid; then
	1346	AC_MSG_RESULT([yes])
	1347	else
	1348	AC_MSG_RESULT([no])
	1349	_am_tools=none
	1350	fi],
	1351
	1352	[pax],
	1353	[],
	1354
	1355	[m4_fatal([Unknown tar format])])
	1356
	1357	AC_MSG_CHECKING([how to create a $1 tar archive])
	1358
	1359	# Go ahead even if we have the value already cached. We do so because we
	1360	# need to set the values for the 'am__tar' and 'am__untar' variables.
	1361	_am_tools=${am_cv_prog_tar_$1-$_am_tools}
	1362
	1363	for _am_tool in $_am_tools; do
	1364	case $_am_tool in
	1365	gnutar)
	1366	for _am_tar in tar gnutar gtar; do
	1367	AM_RUN_LOG([$_am_tar --version]) && break
	1368	done
	1369	am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
	1370	am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
	1371	am__untar="$_am_tar -xf -"
	1372	;;
	1373	plaintar)
	1374	# Must skip GNU tar: if it does not support --format= it doesn't create
	1375	# ustar tarball either.
	1376	(tar --version) >/dev/null 2>&1 && continue
	1377	am__tar='tar chf - "$$tardir"'
	1378	am__tar_='tar chf - "$tardir"'
	1379	am__untar='tar xf -'
	1380	;;
	1381	pax)
	1382	am__tar='pax -L -x $1 -w "$$tardir"'
	1383	am__tar_='pax -L -x $1 -w "$tardir"'
	1384	am__untar='pax -r'
	1385	;;
	1386	cpio)
	1387	am__tar='find "$$tardir" -print \| cpio -o -H $1 -L'
	1388	am__tar_='find "$tardir" -print \| cpio -o -H $1 -L'
	1389	am__untar='cpio -i -H $1 -d'
	1390	;;
	1391	none)
	1392	am__tar=false
	1393	am__tar_=false
	1394	am__untar=false
	1395	;;
	1396	esac
	1397
	1398	# If the value was cached, stop now. We just wanted to have am__tar
	1399	# and am__untar set.
	1400	test -n "${am_cv_prog_tar_$1}" && break
	1401
	1402	# tar/untar a dummy directory, and stop if the command works.
	1403	rm -rf conftest.dir
	1404	mkdir conftest.dir
	1405	echo GrepMe > conftest.dir/file
	1406	AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
	1407	rm -rf conftest.dir
	1408	if test -s conftest.tar; then
	1409	AM_RUN_LOG([$am__untar <conftest.tar])
	1410	AM_RUN_LOG([cat conftest.dir/file])
	1411	grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
	1412	fi
	1413	done
	1414	rm -rf conftest.dir
	1415
	1416	AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
	1417	AC_MSG_RESULT([$am_cv_prog_tar_$1])])
	1418
	1419	AC_SUBST([am__tar])
	1420	AC_SUBST([am__untar])
	1421	]) # _AM_PROG_TAR
	1422
	1423	m4_include([M4/ax_pthread.m4])