aclocal.m4@ 3613

Last change on this file since 3613 was 3611, checked in by bird, 6 months ago
vendor/sed/current: GNU sed 4.9 (sed-4.9.tar.xz sha256:6e226b732e1cd739464ad6862bd1a1aba42d7982922da7a53519631d24975181)
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1	# generated automatically by aclocal 1.16i -- Autoconf --
2
3	# Copyright (C) 1996-2022 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],
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20	If you have problems, you may need to regenerate the build system entirely.
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22
23	# Copyright (C) 2002-2022 Free Software Foundation, Inc.
24	#
25	# This file is free software; the Free Software Foundation
26	# gives unlimited permission to copy and/or distribute it,
27	# with or without modifications, as long as this notice is preserved.
28
29	# AM_AUTOMAKE_VERSION(VERSION)
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31	# Automake X.Y traces this macro to ensure aclocal.m4 has been
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34	AC_DEFUN([AM_AUTOMAKE_VERSION],
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42	# _AM_AUTOCONF_VERSION(VERSION)
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49	# AM_SET_CURRENT_AUTOMAKE_VERSION
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57	_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
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59	# AM_AUX_DIR_EXPAND -- Autoconf --
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61	# Copyright (C) 2001-2022 Free Software Foundation, Inc.
62	#
63	# This file is free software; the Free Software Foundation
64	# gives unlimited permission to copy and/or distribute it,
65	# with or without modifications, as long as this notice is preserved.
66
67	# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
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98	# However there are other variables, like CC, which are often used in
99	# configure, and could therefore not use this "fixed" $ac_aux_dir.
100	#
101	# Another solution, used here, is to always expand $ac_aux_dir to an
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105	AC_DEFUN([AM_AUX_DIR_EXPAND],
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111	# AM_COND_IF -- Autoconf --
112
113	# Copyright (C) 2008-2022 Free Software Foundation, Inc.
114	#
115	# This file is free software; the Free Software Foundation
116	# gives unlimited permission to copy and/or distribute it,
117	# with or without modifications, as long as this notice is preserved.
118
119	# _AM_COND_IF
120	# _AM_COND_ELSE
121	# _AM_COND_ENDIF
122	# --------------
123	# These macros are only used for tracing.
124	m4_define([_AM_COND_IF])
125	m4_define([_AM_COND_ELSE])
126	m4_define([_AM_COND_ENDIF])
127
128	# AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
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130	# If the shell condition COND is true, execute IF-TRUE, otherwise execute
131	# IF-FALSE. Allow automake to learn about conditional instantiating macros
132	# (the AC_CONFIG_FOOS).
133	AC_DEFUN([AM_COND_IF],
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135	[m4_fatal([$0: no such condition "$1"])])dnl
136	_AM_COND_IF([$1])dnl
137	if test -z "$$1_TRUE"; then :
138	m4_n([$2])[]dnl
139	m4_ifval([$3],
140	[_AM_COND_ELSE([$1])dnl
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142	$3
143	])dnl
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147
148	# AM_CONDITIONAL -- Autoconf --
149
150	# Copyright (C) 1997-2022 Free Software Foundation, Inc.
151	#
152	# This file is free software; the Free Software Foundation
153	# gives unlimited permission to copy and/or distribute it,
154	# with or without modifications, as long as this notice is preserved.
155
156	# AM_CONDITIONAL(NAME, SHELL-CONDITION)
157	# -------------------------------------
158	# Define a conditional.
159	AC_DEFUN([AM_CONDITIONAL],
160	[AC_PREREQ([2.52])dnl
161	m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
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163	AC_SUBST([$1_TRUE])dnl
164	AC_SUBST([$1_FALSE])dnl
165	_AM_SUBST_NOTMAKE([$1_TRUE])dnl
166	_AM_SUBST_NOTMAKE([$1_FALSE])dnl
167	m4_define([_AM_COND_VALUE_$1], [$2])dnl
168	if $2; then
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170	$1_FALSE='#'
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172	$1_TRUE='#'
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175	AC_CONFIG_COMMANDS_PRE(
176	[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
177	AC_MSG_ERROR([[conditional "$1" was never defined.
178	Usually this means the macro was only invoked conditionally.]])
179	fi])])
180
181	# Copyright (C) 1999-2022 Free Software Foundation, Inc.
182	#
183	# This file is free software; the Free Software Foundation
184	# gives unlimited permission to copy and/or distribute it,
185	# with or without modifications, as long as this notice is preserved.
186
187
188	# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
189	# written in clear, in which case automake, when reading aclocal.m4,
190	# will think it sees a use, and therefore will trigger all it's
191	# C support machinery. Also note that it means that autoscan, seeing
192	# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
193
194
195	# _AM_DEPENDENCIES(NAME)
196	# ----------------------
197	# See how the compiler implements dependency checking.
198	# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
199	# We try a few techniques and use that to set a single cache variable.
200	#
201	# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
202	# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
203	# dependency, and given that the user is not expected to run this macro,
204	# just rely on AC_PROG_CC.
205	AC_DEFUN([_AM_DEPENDENCIES],
206	[AC_REQUIRE([AM_SET_DEPDIR])dnl
207	AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
208	AC_REQUIRE([AM_MAKE_INCLUDE])dnl
209	AC_REQUIRE([AM_DEP_TRACK])dnl
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211	m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
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214	[$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
215	[$1], [UPC], [depcc="$UPC" am_compiler_list=],
216	[$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
217	[depcc="$$1" am_compiler_list=])
218
219	AC_CACHE_CHECK([dependency style of $depcc],
220	[am_cv_$1_dependencies_compiler_type],
221	[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
222	# We make a subdir and do the tests there. Otherwise we can end up
223	# making bogus files that we don't know about and never remove. For
224	# instance it was reported that on HP-UX the gcc test will end up
225	# making a dummy file named 'D' -- because '-MD' means "put the output
226	# in D".
227	rm -rf conftest.dir
228	mkdir conftest.dir
229	# Copy depcomp to subdir because otherwise we won't find it if we're
230	# using a relative directory.
231	cp "$am_depcomp" conftest.dir
232	cd conftest.dir
233	# We will build objects and dependencies in a subdirectory because
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235	# both Tru64's cc and ICC support -MD to output dependencies as a
236	# side effect of compilation, but ICC will put the dependencies in
237	# the current directory while Tru64 will put them in the object
238	# directory.
239	mkdir sub
240
241	am_cv_$1_dependencies_compiler_type=none
242	if test "$am_compiler_list" = ""; then
243	am_compiler_list=`sed -n ['s/^#$[a-zA-Z0-9]$)$/\1/p'] < ./depcomp`
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245	am__universal=false
246	m4_case([$1], [CC],
247	[case " $depcc " in #(
248	\ -arch\ \ -arch\ *) am__universal=true ;;
249	esac],
250	[CXX],
251	[case " $depcc " in #(
252	\ -arch\ \ -arch\ *) am__universal=true ;;
253	esac])
254
255	for depmode in $am_compiler_list; do
256	# Setup a source with many dependencies, because some compilers
257	# like to wrap large dependency lists on column 80 (with \), and
258	# we should not choose a depcomp mode which is confused by this.
259	#
260	# We need to recreate these files for each test, as the compiler may
261	# overwrite some of them when testing with obscure command lines.
262	# This happens at least with the AIX C compiler.
263	: > sub/conftest.c
264	for i in 1 2 3 4 5 6; do
265	echo '#include "conftst'$i'.h"' >> sub/conftest.c
266	# Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
267	# Solaris 10 /bin/sh.
268	echo '/* dummy */' > sub/conftst$i.h
269	done
270	echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
271
272	# We check with '-c' and '-o' for the sake of the "dashmstdout"
273	# mode. It turns out that the SunPro C++ compiler does not properly
274	# handle '-M -o', and we need to detect this. Also, some Intel
275	# versions had trouble with output in subdirs.
276	am__obj=sub/conftest.${OBJEXT-o}
277	am__minus_obj="-o $am__obj"
278	case $depmode in
279	gcc)
280	# This depmode causes a compiler race in universal mode.
281	test "$am__universal" = false \|\| continue
282	;;
283	nosideeffect)
284	# After this tag, mechanisms are not by side-effect, so they'll
285	# only be used when explicitly requested.
286	if test "x$enable_dependency_tracking" = xyes; then
287	continue
288	else
289	break
290	fi
291	;;
292	msvc7 \| msvc7msys \| msvisualcpp \| msvcmsys)
293	# This compiler won't grok '-c -o', but also, the minuso test has
294	# not run yet. These depmodes are late enough in the game, and
295	# so weak that their functioning should not be impacted.
296	am__obj=conftest.${OBJEXT-o}
297	am__minus_obj=
298	;;
299	none) break ;;
300	esac
301	if depmode=$depmode \
302	source=sub/conftest.c object=$am__obj \
303	depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
304	$SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
305	>/dev/null 2>conftest.err &&
306	grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
307	grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
308	grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
309	${MAKE-make} -s -f confmf > /dev/null 2>&1; then
310	# icc doesn't choke on unknown options, it will just issue warnings
311	# or remarks (even with -Werror). So we grep stderr for any message
312	# that says an option was ignored or not supported.
313	# When given -MP, icc 7.0 and 7.1 complain thusly:
314	# icc: Command line warning: ignoring option '-M'; no argument required
315	# The diagnosis changed in icc 8.0:
316	# icc: Command line remark: option '-MP' not supported
317	if (grep 'ignoring option' conftest.err \|\|
318	grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
319	am_cv_$1_dependencies_compiler_type=$depmode
320	break
321	fi
322	fi
323	done
324
325	cd ..
326	rm -rf conftest.dir
327	else
328	am_cv_$1_dependencies_compiler_type=none
329	fi
330	])
331	AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
332	AM_CONDITIONAL([am__fastdep$1], [
333	test "x$enable_dependency_tracking" != xno \
334	&& test "$am_cv_$1_dependencies_compiler_type" = gcc3])
335	])
336
337
338	# AM_SET_DEPDIR
339	# -------------
340	# Choose a directory name for dependency files.
341	# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
342	AC_DEFUN([AM_SET_DEPDIR],
343	[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
344	AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
345	])
346
347
348	# AM_DEP_TRACK
349	# ------------
350	AC_DEFUN([AM_DEP_TRACK],
351	[AC_ARG_ENABLE([dependency-tracking], [dnl
352	AS_HELP_STRING(
353	[--enable-dependency-tracking],
354	[do not reject slow dependency extractors])
355	AS_HELP_STRING(
356	[--disable-dependency-tracking],
357	[speeds up one-time build])])
358	if test "x$enable_dependency_tracking" != xno; then
359	am_depcomp="$ac_aux_dir/depcomp"
360	AMDEPBACKSLASH='\'
361	am__nodep='_no'
362	fi
363	AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
364	AC_SUBST([AMDEPBACKSLASH])dnl
365	_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
366	AC_SUBST([am__nodep])dnl
367	_AM_SUBST_NOTMAKE([am__nodep])dnl
368	])
369
370	# Generate code to set up dependency tracking. -- Autoconf --
371
372	# Copyright (C) 1999-2022 Free Software Foundation, Inc.
373	#
374	# This file is free software; the Free Software Foundation
375	# gives unlimited permission to copy and/or distribute it,
376	# with or without modifications, as long as this notice is preserved.
377
378	# _AM_OUTPUT_DEPENDENCY_COMMANDS
379	# ------------------------------
380	AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
381	[{
382	# Older Autoconf quotes --file arguments for eval, but not when files
383	# are listed without --file. Let's play safe and only enable the eval
384	# if we detect the quoting.
385	# TODO: see whether this extra hack can be removed once we start
386	# requiring Autoconf 2.70 or later.
387	AS_CASE([$CONFIG_FILES],
388	[\'], [eval set x "$CONFIG_FILES"],
389	[*], [set x $CONFIG_FILES])
390	shift
391	# Used to flag and report bootstrapping failures.
392	am_rc=0
393	for am_mf
394	do
395	# Strip MF so we end up with the name of the file.
396	am_mf=`AS_ECHO(["$am_mf"]) \| sed -e 's/:.*$//'`
397	# Check whether this is an Automake generated Makefile which includes
398	# dependency-tracking related rules and includes.
399	# Grep'ing the whole file directly is not great: AIX grep has a line
400	# limit of 2048, but all sed's we know have understand at least 4000.
401	sed -n 's,^am--depfiles:.*,X,p' "$am_mf" \| grep X >/dev/null 2>&1 \
402	\|\| continue
403	am_dirpart=`AS_DIRNAME(["$am_mf"])`
404	am_filepart=`AS_BASENAME(["$am_mf"])`
405	AM_RUN_LOG([cd "$am_dirpart" \
406	&& sed -e '/# am--include-marker/d' "$am_filepart" \
407	\| $MAKE -f - am--depfiles]) \|\| am_rc=$?
408	done
409	if test $am_rc -ne 0; then
410	AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
411	for automatic dependency tracking. If GNU make was not used, consider
412	re-running the configure script with MAKE="gmake" (or whatever is
413	necessary). You can also try re-running configure with the
414	'--disable-dependency-tracking' option to at least be able to build
415	the package (albeit without support for automatic dependency tracking).])
416	fi
417	AS_UNSET([am_dirpart])
418	AS_UNSET([am_filepart])
419	AS_UNSET([am_mf])
420	AS_UNSET([am_rc])
421	rm -f conftest-deps.mk
422	}
423	])# _AM_OUTPUT_DEPENDENCY_COMMANDS
424
425
426	# AM_OUTPUT_DEPENDENCY_COMMANDS
427	# -----------------------------
428	# This macro should only be invoked once -- use via AC_REQUIRE.
429	#
430	# This code is only required when automatic dependency tracking is enabled.
431	# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
432	# order to bootstrap the dependency handling code.
433	AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
434	[AC_CONFIG_COMMANDS([depfiles],
435	[test x"$AMDEP_TRUE" != x"" \|\| _AM_OUTPUT_DEPENDENCY_COMMANDS],
436	[AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
437
438	# Do all the work for Automake. -- Autoconf --
439
440	# Copyright (C) 1996-2022 Free Software Foundation, Inc.
441	#
442	# This file is free software; the Free Software Foundation
443	# gives unlimited permission to copy and/or distribute it,
444	# with or without modifications, as long as this notice is preserved.
445
446	# This macro actually does too much. Some checks are only needed if
447	# your package does certain things. But this isn't really a big deal.
448
449	dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
450	m4_define([AC_PROG_CC],
451	m4_defn([AC_PROG_CC])
452	[_AM_PROG_CC_C_O
453	])
454
455	# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
456	# AM_INIT_AUTOMAKE([OPTIONS])
457	# -----------------------------------------------
458	# The call with PACKAGE and VERSION arguments is the old style
459	# call (pre autoconf-2.50), which is being phased out. PACKAGE
460	# and VERSION should now be passed to AC_INIT and removed from
461	# the call to AM_INIT_AUTOMAKE.
462	# We support both call styles for the transition. After
463	# the next Automake release, Autoconf can make the AC_INIT
464	# arguments mandatory, and then we can depend on a new Autoconf
465	# release and drop the old call support.
466	AC_DEFUN([AM_INIT_AUTOMAKE],
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468	m4_ifdef([_$0_ALREADY_INIT],
469	[m4_fatal([$0 expanded multiple times
470	]m4_defn([_$0_ALREADY_INIT]))],
471	[m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
472	dnl Autoconf wants to disallow AM_ names. We explicitly allow
473	dnl the ones we care about.
474	m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
475	AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
476	AC_REQUIRE([AC_PROG_INSTALL])dnl
477	if test "`cd $srcdir && pwd`" != "`pwd`"; then
478	# Use -I$(srcdir) only when $(srcdir) != ., so that make's output
479	# is not polluted with repeated "-I."
480	AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
481	# test to see if srcdir already configured
482	if test -f $srcdir/config.status; then
483	AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
484	fi
485	fi
486
487	# test whether we have cygpath
488	if test -z "$CYGPATH_W"; then
489	if (cygpath --version) >/dev/null 2>/dev/null; then
490	CYGPATH_W='cygpath -w'
491	else
492	CYGPATH_W=echo
493	fi
494	fi
495	AC_SUBST([CYGPATH_W])
496
497	# Define the identity of the package.
498	dnl Distinguish between old-style and new-style calls.
499	m4_ifval([$2],
500	[AC_DIAGNOSE([obsolete],
501	[$0: two- and three-arguments forms are deprecated.])
502	m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
503	AC_SUBST([PACKAGE], [$1])dnl
504	AC_SUBST([VERSION], [$2])],
505	[_AM_SET_OPTIONS([$1])dnl
506	dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
507	m4_if(
508	m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
509	[ok:ok],,
510	[m4_fatal([AC_INIT should be called with package and version arguments])])dnl
511	AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
512	AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
513
514	_AM_IF_OPTION([no-define],,
515	[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
516	AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
517
518	# Some tools Automake needs.
519	AC_REQUIRE([AM_SANITY_CHECK])dnl
520	AC_REQUIRE([AC_ARG_PROGRAM])dnl
521	AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
522	AM_MISSING_PROG([AUTOCONF], [autoconf])
523	AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
524	AM_MISSING_PROG([AUTOHEADER], [autoheader])
525	AM_MISSING_PROG([MAKEINFO], [makeinfo])
526	AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
527	AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
528	AC_REQUIRE([AC_PROG_MKDIR_P])dnl
529	# For better backward compatibility. To be removed once Automake 1.9.x
530	# dies out for good. For more background, see:
531	# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
532	# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
533	AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
534	# We need awk for the "check" target (and possibly the TAP driver). The
535	# system "awk" is bad on some platforms.
536	AC_REQUIRE([AC_PROG_AWK])dnl
537	AC_REQUIRE([AC_PROG_MAKE_SET])dnl
538	AC_REQUIRE([AM_SET_LEADING_DOT])dnl
539	_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
540	[_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
541	[_AM_PROG_TAR([v7])])])
542	_AM_IF_OPTION([no-dependencies],,
543	[AC_PROVIDE_IFELSE([AC_PROG_CC],
544	[_AM_DEPENDENCIES([CC])],
545	[m4_define([AC_PROG_CC],
546	m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
547	AC_PROVIDE_IFELSE([AC_PROG_CXX],
548	[_AM_DEPENDENCIES([CXX])],
549	[m4_define([AC_PROG_CXX],
550	m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
551	AC_PROVIDE_IFELSE([AC_PROG_OBJC],
552	[_AM_DEPENDENCIES([OBJC])],
553	[m4_define([AC_PROG_OBJC],
554	m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
555	AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
556	[_AM_DEPENDENCIES([OBJCXX])],
557	[m4_define([AC_PROG_OBJCXX],
558	m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
559	])
560	# Variables for tags utilities; see am/tags.am
561	if test -z "$CTAGS"; then
562	CTAGS=ctags
563	fi
564	AC_SUBST([CTAGS])
565	if test -z "$ETAGS"; then
566	ETAGS=etags
567	fi
568	AC_SUBST([ETAGS])
569	if test -z "$CSCOPE"; then
570	CSCOPE=cscope
571	fi
572	AC_SUBST([CSCOPE])
573
574	AC_REQUIRE([_AM_SILENT_RULES])dnl
575	dnl The testsuite driver may need to know about EXEEXT, so add the
576	dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
577	dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
578	AC_CONFIG_COMMANDS_PRE(dnl
579	[m4_provide_if([_AM_COMPILER_EXEEXT],
580	[AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
581
582	AC_REQUIRE([_AM_PROG_RM_F])
583	AC_REQUIRE([_AM_PROG_XARGS_N])
584
585	dnl The trailing newline in this macro's definition is deliberate, for
586	dnl backward compatibility and to allow trailing 'dnl'-style comments
587	dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
588	])
589
590	dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
591	dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
592	dnl mangled by Autoconf and run in a shell conditional statement.
593	m4_define([_AC_COMPILER_EXEEXT],
594	m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
595
596	# When config.status generates a header, we must update the stamp-h file.
597	# This file resides in the same directory as the config header
598	# that is generated. The stamp files are numbered to have different names.
599
600	# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
601	# loop where config.status creates the headers, so we can generate
602	# our stamp files there.
603	AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
604	[# Compute $1's index in $config_headers.
605	_am_arg=$1
606	_am_stamp_count=1
607	for _am_header in $config_headers :; do
608	case $_am_header in
609	$_am_arg \| $_am_arg:* )
610	break ;;
611	* )
612	_am_stamp_count=`expr $_am_stamp_count + 1` ;;
613	esac
614	done
615	echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
616
617	# Copyright (C) 2001-2022 Free Software Foundation, Inc.
618	#
619	# This file is free software; the Free Software Foundation
620	# gives unlimited permission to copy and/or distribute it,
621	# with or without modifications, as long as this notice is preserved.
622
623	# AM_PROG_INSTALL_SH
624	# ------------------
625	# Define $install_sh.
626	AC_DEFUN([AM_PROG_INSTALL_SH],
627	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
628	if test x"${install_sh+set}" != xset; then
629	case $am_aux_dir in
630	\ \| \ )
631	install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
632	*)
633	install_sh="\${SHELL} $am_aux_dir/install-sh"
634	esac
635	fi
636	AC_SUBST([install_sh])])
637
638	# Copyright (C) 2003-2022 Free Software Foundation, Inc.
639	#
640	# This file is free software; the Free Software Foundation
641	# gives unlimited permission to copy and/or distribute it,
642	# with or without modifications, as long as this notice is preserved.
643
644	# Check whether the underlying file-system supports filenames
645	# with a leading dot. For instance MS-DOS doesn't.
646	AC_DEFUN([AM_SET_LEADING_DOT],
647	[rm -rf .tst 2>/dev/null
648	mkdir .tst 2>/dev/null
649	if test -d .tst; then
650	am__leading_dot=.
651	else
652	am__leading_dot=_
653	fi
654	rmdir .tst 2>/dev/null
655	AC_SUBST([am__leading_dot])])
656
657	# Check to see how 'make' treats includes. -- Autoconf --
658
659	# Copyright (C) 2001-2022 Free Software Foundation, Inc.
660	#
661	# This file is free software; the Free Software Foundation
662	# gives unlimited permission to copy and/or distribute it,
663	# with or without modifications, as long as this notice is preserved.
664
665	# AM_MAKE_INCLUDE()
666	# -----------------
667	# Check whether make has an 'include' directive that can support all
668	# the idioms we need for our automatic dependency tracking code.
669	AC_DEFUN([AM_MAKE_INCLUDE],
670	[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
671	cat > confinc.mk << 'END'
672	am__doit:
673	@echo this is the am__doit target >confinc.out
674	.PHONY: am__doit
675	END
676	am__include="#"
677	am__quote=
678	# BSD make does it like this.
679	echo '.include "confinc.mk" # ignored' > confmf.BSD
680	# Other make implementations (GNU, Solaris 10, AIX) do it like this.
681	echo 'include confinc.mk # ignored' > confmf.GNU
682	_am_result=no
683	for s in GNU BSD; do
684	AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
685	AS_CASE([$?:`cat confinc.out 2>/dev/null`],
686	['0:this is the am__doit target'],
687	[AS_CASE([$s],
688	[BSD], [am__include='.include' am__quote='"'],
689	[am__include='include' am__quote=''])])
690	if test "$am__include" != "#"; then
691	_am_result="yes ($s style)"
692	break
693	fi
694	done
695	rm -f confinc.* confmf.*
696	AC_MSG_RESULT([${_am_result}])
697	AC_SUBST([am__include])])
698	AC_SUBST([am__quote])])
699
700	# Fake the existence of programs that GNU maintainers use. -- Autoconf --
701
702	# Copyright (C) 1997-2022 Free Software Foundation, Inc.
703	#
704	# This file is free software; the Free Software Foundation
705	# gives unlimited permission to copy and/or distribute it,
706	# with or without modifications, as long as this notice is preserved.
707
708	# AM_MISSING_PROG(NAME, PROGRAM)
709	# ------------------------------
710	AC_DEFUN([AM_MISSING_PROG],
711	[AC_REQUIRE([AM_MISSING_HAS_RUN])
712	$1=${$1-"${am_missing_run}$2"}
713	AC_SUBST($1)])
714
715	# AM_MISSING_HAS_RUN
716	# ------------------
717	# Define MISSING if not defined so far and test if it is modern enough.
718	# If it is, set am_missing_run to use it, otherwise, to nothing.
719	AC_DEFUN([AM_MISSING_HAS_RUN],
720	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
721	AC_REQUIRE_AUX_FILE([missing])dnl
722	if test x"${MISSING+set}" != xset; then
723	MISSING="\${SHELL} '$am_aux_dir/missing'"
724	fi
725	# Use eval to expand $SHELL
726	if eval "$MISSING --is-lightweight"; then
727	am_missing_run="$MISSING "
728	else
729	am_missing_run=
730	AC_MSG_WARN(['missing' script is too old or missing])
731	fi
732	])
733
734	# Helper functions for option handling. -- Autoconf --
735
736	# Copyright (C) 2001-2022 Free Software Foundation, Inc.
737	#
738	# This file is free software; the Free Software Foundation
739	# gives unlimited permission to copy and/or distribute it,
740	# with or without modifications, as long as this notice is preserved.
741
742	# _AM_MANGLE_OPTION(NAME)
743	# -----------------------
744	AC_DEFUN([_AM_MANGLE_OPTION],
745	[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
746
747	# _AM_SET_OPTION(NAME)
748	# --------------------
749	# Set option NAME. Presently that only means defining a flag for this option.
750	AC_DEFUN([_AM_SET_OPTION],
751	[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
752
753	# _AM_SET_OPTIONS(OPTIONS)
754	# ------------------------
755	# OPTIONS is a space-separated list of Automake options.
756	AC_DEFUN([_AM_SET_OPTIONS],
757	[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
758
759	# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
760	# -------------------------------------------
761	# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
762	AC_DEFUN([_AM_IF_OPTION],
763	[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
764
765	# Copyright (C) 1999-2022 Free Software Foundation, Inc.
766	#
767	# This file is free software; the Free Software Foundation
768	# gives unlimited permission to copy and/or distribute it,
769	# with or without modifications, as long as this notice is preserved.
770
771	# _AM_PROG_CC_C_O
772	# ---------------
773	# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
774	# to automatically call this.
775	AC_DEFUN([_AM_PROG_CC_C_O],
776	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
777	AC_REQUIRE_AUX_FILE([compile])dnl
778	AC_LANG_PUSH([C])dnl
779	AC_CACHE_CHECK(
780	[whether $CC understands -c and -o together],
781	[am_cv_prog_cc_c_o],
782	[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
783	# Make sure it works both with $CC and with simple cc.
784	# Following AC_PROG_CC_C_O, we do the test twice because some
785	# compilers refuse to overwrite an existing .o file with -o,
786	# though they will create one.
787	am_cv_prog_cc_c_o=yes
788	for am_i in 1 2; do
789	if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
790	&& test -f conftest2.$ac_objext; then
791	: OK
792	else
793	am_cv_prog_cc_c_o=no
794	break
795	fi
796	done
797	rm -f core conftest*
798	unset am_i])
799	if test "$am_cv_prog_cc_c_o" != yes; then
800	# Losing compiler, so override with the script.
801	# FIXME: It is wrong to rewrite CC.
802	# But if we don't then we get into trouble of one sort or another.
803	# A longer-term fix would be to have automake use am__CC in this case,
804	# and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
805	CC="$am_aux_dir/compile $CC"
806	fi
807	AC_LANG_POP([C])])
808
809	# For backward compatibility.
810	AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
811
812	# Copyright (C) 2022 Free Software Foundation, Inc.
813	#
814	# This file is free software; the Free Software Foundation
815	# gives unlimited permission to copy and/or distribute it,
816	# with or without modifications, as long as this notice is preserved.
817
818	# _AM_PROG_RM_F
819	# ---------------
820	# Check whether 'rm -f' without any arguments works.
821	# https://bugs.gnu.org/10828
822	AC_DEFUN([_AM_PROG_RM_F],
823	[am__rm_f_notfound=
824	AS_IF([(rm -f && rm -fr && rm -rf) 2>/dev/null], [], [am__rm_f_notfound='""'])
825	AC_SUBST(am__rm_f_notfound)
826	])
827
828	# Copyright (C) 2001-2022 Free Software Foundation, Inc.
829	#
830	# This file is free software; the Free Software Foundation
831	# gives unlimited permission to copy and/or distribute it,
832	# with or without modifications, as long as this notice is preserved.
833
834	# AM_RUN_LOG(COMMAND)
835	# -------------------
836	# Run COMMAND, save the exit status in ac_status, and log it.
837	# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
838	AC_DEFUN([AM_RUN_LOG],
839	[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
840	($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
841	ac_status=$?
842	echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
843	(exit $ac_status); }])
844
845	# Check to make sure that the build environment is sane. -- Autoconf --
846
847	# Copyright (C) 1996-2022 Free Software Foundation, Inc.
848	#
849	# This file is free software; the Free Software Foundation
850	# gives unlimited permission to copy and/or distribute it,
851	# with or without modifications, as long as this notice is preserved.
852
853	# _AM_SLEEP_FRACTIONAL_SECONDS
854	# ----------------------------
855	AC_DEFUN([_AM_SLEEP_FRACTIONAL_SECONDS], [dnl
856	AC_CACHE_CHECK([whether sleep supports fractional seconds], am_cv_sleep_fractional_seconds, [dnl
857	AS_IF([sleep 0.001 2>/dev/null], [am_cv_sleep_fractional_seconds=true], [am_cv_sleep_fractional_seconds=false])
858	])])
859
860	# _AM_FILESYSTEM_TIMESTAMP_RESOLUTION
861	# -----------------------------------
862	# Determine the filesystem timestamp resolution. Modern systems are nanosecond
863	# capable, but historical systems could be millisecond, second, or even 2-second
864	# resolution.
865	AC_DEFUN([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION], [dnl
866	AC_REQUIRE([_AM_SLEEP_FRACTIONAL_SECONDS])
867	AC_CACHE_CHECK([the filesystem timestamp resolution], am_cv_filesystem_timestamp_resolution, [dnl
868	# Use names that lexically sort older-first when the timestamps are equal.
869	rm -f conftest.file.a conftest.file.b
870	: > conftest.file.a
871	AS_IF([$am_cv_sleep_fractional_seconds], [dnl
872	am_try_sleep=0.1 am_try_loops=20
873	], [dnl
874	am_try_sleep=1 am_try_loops=2
875	])
876	am_try=0
877	while :; do
878	AS_VAR_ARITH([am_try], [$am_try + 1])
879	echo "timestamp $am_try" > conftest.file.b
880	set X `ls -t conftest.file.a conftest.file.b`
881	if test "$[2]" = conftest.file.b \|\| test $am_try -eq $am_try_loops; then
882	break
883	fi
884	sleep $am_try_sleep
885	done
886	rm -f conftest.file.a conftest.file.b
887	am_cv_filesystem_timestamp_resolution=$am_try
888	AS_IF([$am_cv_sleep_fractional_seconds], [dnl
889	AS_VAR_ARITH([am_cv_filesystem_timestamp_resolution], [$am_try / 10])
890	AS_VAR_ARITH([am_fraction], [$am_try % 10])
891	AS_VAR_APPEND([am_cv_filesystem_timestamp_resolution], [.$am_fraction])
892	])
893	])])
894
895	# AM_SANITY_CHECK
896	# ---------------
897	AC_DEFUN([AM_SANITY_CHECK],
898	[AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION])
899	rm -f conftest.file
900	AC_CACHE_CHECK([whether build environment is sane], am_cv_build_env_is_sane, [dnl
901	# Reject unsafe characters in $srcdir or the absolute working directory
902	# name. Accept space and tab only in the latter.
903	am_lf='
904	'
905	case `pwd` in
906	[[\\\"\#\$\&\'\`$am_lf]])
907	AC_MSG_ERROR([unsafe absolute working directory name]);;
908	esac
909	case $srcdir in
910	[[\\\"\#\$\&\'\`$am_lf\ \ ]])
911	AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
912	esac
913
914	# Do 'set' in a subshell so we don't clobber the current shell's
915	# arguments. Must try -L first in case configure is actually a
916	# symlink; some systems play weird games with the mod time of symlinks
917	# (eg FreeBSD returns the mod time of the symlink's containing
918	# directory).
919	if (
920	am_has_slept=no
921	for am_try in 1 2; do
922	echo "timestamp, slept: $am_has_slept" > conftest.file
923	set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
924	if test "$[*]" = "X"; then
925	# -L didn't work.
926	set X `ls -t "$srcdir/configure" conftest.file`
927	fi
928	if test "$[*]" != "X $srcdir/configure conftest.file" \
929	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
930
931	# If neither matched, then we have a broken ls. This can happen
932	# if, for instance, CONFIG_SHELL is bash and it inherits a
933	# broken ls alias from the environment. This has actually
934	# happened. Such a system could not be considered "sane".
935	AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
936	alias in your environment])
937	fi
938	if test "$[2]" = conftest.file \|\| test $am_try -eq 2; then
939	break
940	fi
941	# Just in case.
942	sleep $am_cv_filesystem_timestamp_resolution
943	am_has_slept=yes
944	done
945	test "$[2]" = conftest.file
946	)
947	then
948	am_cv_build_env_is_sane=yes
949	else
950	AC_MSG_ERROR([newly created file is older than distributed files!
951	Check your system clock])
952	fi
953	])
954	# If we didn't sleep, we still need to ensure time stamps of config.status and
955	# generated files are strictly newer.
956	am_sleep_pid=
957	if ! test -e conftest.file \|\| grep 'slept: no' conftest.file >/dev/null 2>&1; then
958	( sleep $am_cv_filesystem_timestamp_resolution ) &
959	am_sleep_pid=$!
960	fi
961	AC_CONFIG_COMMANDS_PRE(
962	[AC_MSG_CHECKING([that generated files are newer than configure])
963	if test -n "$am_sleep_pid"; then
964	# Hide warnings about reused PIDs.
965	wait $am_sleep_pid 2>/dev/null
966	fi
967	AC_MSG_RESULT([done])])
968	rm -f conftest.file
969	])
970
971	# Copyright (C) 2009-2022 Free Software Foundation, Inc.
972	#
973	# This file is free software; the Free Software Foundation
974	# gives unlimited permission to copy and/or distribute it,
975	# with or without modifications, as long as this notice is preserved.
976
977	# _AM_SILENT_RULES
978	# ----------------
979	# Enable less verbose build rules support.
980	AC_DEFUN([_AM_SILENT_RULES],
981	[AM_DEFAULT_VERBOSITY=1
982	AC_ARG_ENABLE([silent-rules], [dnl
983	AS_HELP_STRING(
984	[--enable-silent-rules],
985	[less verbose build output (undo: "make V=1")])
986	AS_HELP_STRING(
987	[--disable-silent-rules],
988	[verbose build output (undo: "make V=0")])dnl
989	])
990	dnl
991	dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
992	dnl do not support nested variable expansions.
993	dnl See automake bug#9928 and bug#10237.
994	am_make=${MAKE-make}
995	AC_CACHE_CHECK([whether $am_make supports nested variables],
996	[am_cv_make_support_nested_variables],
997	[if AS_ECHO([['TRUE=$(BAR$(V))
998	BAR0=false
999	BAR1=true
1000	V=1
1001	am__doit:
1002	@$(TRUE)
1003	.PHONY: am__doit']]) \| $am_make -f - >/dev/null 2>&1; then
1004	am_cv_make_support_nested_variables=yes
1005	else
1006	am_cv_make_support_nested_variables=no
1007	fi])
1008	AC_SUBST([AM_V])dnl
1009	AM_SUBST_NOTMAKE([AM_V])dnl
1010	AC_SUBST([AM_DEFAULT_V])dnl
1011	AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1012	AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1013	AM_BACKSLASH='\'
1014	AC_SUBST([AM_BACKSLASH])dnl
1015	_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1016	dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls
1017	dnl to AM_SILENT_RULES to change the default value.
1018	AC_CONFIG_COMMANDS_PRE([dnl
1019	case $enable_silent_rules in @%:@ (((
1020	yes) AM_DEFAULT_VERBOSITY=0;;
1021	no) AM_DEFAULT_VERBOSITY=1;;
1022	esac
1023	if test $am_cv_make_support_nested_variables = yes; then
1024	dnl Using '$V' instead of '$(V)' breaks IRIX make.
1025	AM_V='$(V)'
1026	AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1027	else
1028	AM_V=$AM_DEFAULT_VERBOSITY
1029	AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1030	fi
1031	])dnl
1032	])
1033
1034	# AM_SILENT_RULES([DEFAULT])
1035	# --------------------------
1036	# Set the default verbosity level to DEFAULT ("yes" being less verbose, "no" or
1037	# empty being verbose).
1038	AC_DEFUN([AM_SILENT_RULES],
1039	[AC_REQUIRE([_AM_SILENT_RULES])
1040	AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])])
1041
1042	# Copyright (C) 2001-2022 Free Software Foundation, Inc.
1043	#
1044	# This file is free software; the Free Software Foundation
1045	# gives unlimited permission to copy and/or distribute it,
1046	# with or without modifications, as long as this notice is preserved.
1047
1048	# AM_PROG_INSTALL_STRIP
1049	# ---------------------
1050	# One issue with vendor 'install' (even GNU) is that you can't
1051	# specify the program used to strip binaries. This is especially
1052	# annoying in cross-compiling environments, where the build's strip
1053	# is unlikely to handle the host's binaries.
1054	# Fortunately install-sh will honor a STRIPPROG variable, so we
1055	# always use install-sh in "make install-strip", and initialize
1056	# STRIPPROG with the value of the STRIP variable (set by the user).
1057	AC_DEFUN([AM_PROG_INSTALL_STRIP],
1058	[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1059	# Installed binaries are usually stripped using 'strip' when the user
1060	# run "make install-strip". However 'strip' might not be the right
1061	# tool to use in cross-compilation environments, therefore Automake
1062	# will honor the 'STRIP' environment variable to overrule this program.
1063	dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1064	if test "$cross_compiling" != no; then
1065	AC_CHECK_TOOL([STRIP], [strip], :)
1066	fi
1067	INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1068	AC_SUBST([INSTALL_STRIP_PROGRAM])])
1069
1070	# Copyright (C) 2006-2022 Free Software Foundation, Inc.
1071	#
1072	# This file is free software; the Free Software Foundation
1073	# gives unlimited permission to copy and/or distribute it,
1074	# with or without modifications, as long as this notice is preserved.
1075
1076	# _AM_SUBST_NOTMAKE(VARIABLE)
1077	# ---------------------------
1078	# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1079	# This macro is traced by Automake.
1080	AC_DEFUN([_AM_SUBST_NOTMAKE])
1081
1082	# AM_SUBST_NOTMAKE(VARIABLE)
1083	# --------------------------
1084	# Public sister of _AM_SUBST_NOTMAKE.
1085	AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1086
1087	# Check how to create a tarball. -- Autoconf --
1088
1089	# Copyright (C) 2004-2022 Free Software Foundation, Inc.
1090	#
1091	# This file is free software; the Free Software Foundation
1092	# gives unlimited permission to copy and/or distribute it,
1093	# with or without modifications, as long as this notice is preserved.
1094
1095	# _AM_PROG_TAR(FORMAT)
1096	# --------------------
1097	# Check how to create a tarball in format FORMAT.
1098	# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1099	#
1100	# Substitute a variable $(am__tar) that is a command
1101	# writing to stdout a FORMAT-tarball containing the directory
1102	# $tardir.
1103	# tardir=directory && $(am__tar) > result.tar
1104	#
1105	# Substitute a variable $(am__untar) that extract such
1106	# a tarball read from stdin.
1107	# $(am__untar) < result.tar
1108	#
1109	AC_DEFUN([_AM_PROG_TAR],
1110	[# Always define AMTAR for backward compatibility. Yes, it's still used
1111	# in the wild :-( We should find a proper way to deprecate it ...
1112	AC_SUBST([AMTAR], ['$${TAR-tar}'])
1113
1114	# We'll loop over all known methods to create a tar archive until one works.
1115	_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1116
1117	m4_if([$1], [v7],
1118	[am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1119
1120	[m4_case([$1],
1121	[ustar],
1122	[# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1123	# There is notably a 21 bits limit for the UID and the GID. In fact,
1124	# the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1125	# and bug#13588).
1126	am_max_uid=2097151 # 2^21 - 1
1127	am_max_gid=$am_max_uid
1128	# The $UID and $GID variables are not portable, so we need to resort
1129	# to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1130	# below are definitely unexpected, so allow the users to see them
1131	# (that is, avoid stderr redirection).
1132	am_uid=`id -u \|\| echo unknown`
1133	am_gid=`id -g \|\| echo unknown`
1134	AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1135	if test x$am_uid = xunknown; then
1136	AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work])
1137	elif test $am_uid -le $am_max_uid; then
1138	AC_MSG_RESULT([yes])
1139	else
1140	AC_MSG_RESULT([no])
1141	_am_tools=none
1142	fi
1143	AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1144	if test x$gm_gid = xunknown; then
1145	AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work])
1146	elif test $am_gid -le $am_max_gid; then
1147	AC_MSG_RESULT([yes])
1148	else
1149	AC_MSG_RESULT([no])
1150	_am_tools=none
1151	fi],
1152
1153	[pax],
1154	[],
1155
1156	[m4_fatal([Unknown tar format])])
1157
1158	AC_MSG_CHECKING([how to create a $1 tar archive])
1159
1160	# Go ahead even if we have the value already cached. We do so because we
1161	# need to set the values for the 'am__tar' and 'am__untar' variables.
1162	_am_tools=${am_cv_prog_tar_$1-$_am_tools}
1163
1164	for _am_tool in $_am_tools; do
1165	case $_am_tool in
1166	gnutar)
1167	for _am_tar in tar gnutar gtar; do
1168	AM_RUN_LOG([$_am_tar --version]) && break
1169	done
1170	am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1171	am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1172	am__untar="$_am_tar -xf -"
1173	;;
1174	plaintar)
1175	# Must skip GNU tar: if it does not support --format= it doesn't create
1176	# ustar tarball either.
1177	(tar --version) >/dev/null 2>&1 && continue
1178	am__tar='tar chf - "$$tardir"'
1179	am__tar_='tar chf - "$tardir"'
1180	am__untar='tar xf -'
1181	;;
1182	pax)
1183	am__tar='pax -L -x $1 -w "$$tardir"'
1184	am__tar_='pax -L -x $1 -w "$tardir"'
1185	am__untar='pax -r'
1186	;;
1187	cpio)
1188	am__tar='find "$$tardir" -print \| cpio -o -H $1 -L'
1189	am__tar_='find "$tardir" -print \| cpio -o -H $1 -L'
1190	am__untar='cpio -i -H $1 -d'
1191	;;
1192	none)
1193	am__tar=false
1194	am__tar_=false
1195	am__untar=false
1196	;;
1197	esac
1198
1199	# If the value was cached, stop now. We just wanted to have am__tar
1200	# and am__untar set.
1201	test -n "${am_cv_prog_tar_$1}" && break
1202
1203	# tar/untar a dummy directory, and stop if the command works.
1204	rm -rf conftest.dir
1205	mkdir conftest.dir
1206	echo GrepMe > conftest.dir/file
1207	AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1208	rm -rf conftest.dir
1209	if test -s conftest.tar; then
1210	AM_RUN_LOG([$am__untar <conftest.tar])
1211	AM_RUN_LOG([cat conftest.dir/file])
1212	grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1213	fi
1214	done
1215	rm -rf conftest.dir
1216
1217	AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1218	AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1219
1220	AC_SUBST([am__tar])
1221	AC_SUBST([am__untar])
1222	]) # _AM_PROG_TAR
1223
1224	# Copyright (C) 2022 Free Software Foundation, Inc.
1225	#
1226	# This file is free software; the Free Software Foundation
1227	# gives unlimited permission to copy and/or distribute it,
1228	# with or without modifications, as long as this notice is preserved.
1229
1230	# _AM_PROG_XARGS_N
1231	# ----------------
1232	# Check whether 'xargs -n' works. It should work everywhere, so the fallback
1233	# is not optimized at all as we never expect to use it.
1234	AC_DEFUN([_AM_PROG_XARGS_N],
1235	[AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl
1236	AS_IF([test "`echo 1 2 3 \| xargs -n2 echo`" = "1 2
1237	3"], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])])
1238	AS_IF([test "$am_cv_xargs_n_works" = yes], [am__xargs_n='xargs -n'], [dnl
1239	am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" \| while read am__xargs_n_arg; do "$@" "$am__xargs_n_arg"; done; }'
1240	])dnl
1241	AC_SUBST(am__xargs_n)
1242	])
1243
1244	m4_include([m4/00gnulib.m4])
1245	m4_include([m4/__inline.m4])
1246	m4_include([m4/absolute-header.m4])
1247	m4_include([m4/acl.m4])
1248	m4_include([m4/alloca.m4])
1249	m4_include([m4/arpa_inet_h.m4])
1250	m4_include([m4/assert.m4])
1251	m4_include([m4/assert_h.m4])
1252	m4_include([m4/btowc.m4])
1253	m4_include([m4/builtin-expect.m4])
1254	m4_include([m4/c-bool.m4])
1255	m4_include([m4/calloc.m4])
1256	m4_include([m4/canonicalize.m4])
1257	m4_include([m4/clock_time.m4])
1258	m4_include([m4/close.m4])
1259	m4_include([m4/closedir.m4])
1260	m4_include([m4/codeset.m4])
1261	m4_include([m4/ctype_h.m4])
1262	m4_include([m4/dirent_h.m4])
1263	m4_include([m4/dirfd.m4])
1264	m4_include([m4/double-slash-root.m4])
1265	m4_include([m4/dup2.m4])
1266	m4_include([m4/eealloc.m4])
1267	m4_include([m4/environ.m4])
1268	m4_include([m4/errno_h.m4])
1269	m4_include([m4/error.m4])
1270	m4_include([m4/explicit_bzero.m4])
1271	m4_include([m4/extensions.m4])
1272	m4_include([m4/extern-inline.m4])
1273	m4_include([m4/fcntl-o.m4])
1274	m4_include([m4/fcntl.m4])
1275	m4_include([m4/fcntl_h.m4])
1276	m4_include([m4/fdopen.m4])
1277	m4_include([m4/fflush.m4])
1278	m4_include([m4/flexmember.m4])
1279	m4_include([m4/fopen.m4])
1280	m4_include([m4/fpending.m4])
1281	m4_include([m4/fpurge.m4])
1282	m4_include([m4/freading.m4])
1283	m4_include([m4/free.m4])
1284	m4_include([m4/fseek.m4])
1285	m4_include([m4/fseeko.m4])
1286	m4_include([m4/fstat.m4])
1287	m4_include([m4/ftell.m4])
1288	m4_include([m4/ftello.m4])
1289	m4_include([m4/ftruncate.m4])
1290	m4_include([m4/fwriting.m4])
1291	m4_include([m4/getcwd.m4])
1292	m4_include([m4/getdelim.m4])
1293	m4_include([m4/getdtablesize.m4])
1294	m4_include([m4/getpagesize.m4])
1295	m4_include([m4/getprogname.m4])
1296	m4_include([m4/getrandom.m4])
1297	m4_include([m4/gettext.m4])
1298	m4_include([m4/gettimeofday.m4])
1299	m4_include([m4/gnulib-common.m4])
1300	m4_include([m4/gnulib-comp.m4])
1301	m4_include([m4/iconv.m4])
1302	m4_include([m4/include_next.m4])
1303	m4_include([m4/inet_pton.m4])
1304	m4_include([m4/intl-thread-locale.m4])
1305	m4_include([m4/intlmacosx.m4])
1306	m4_include([m4/inttypes.m4])
1307	m4_include([m4/ioctl.m4])
1308	m4_include([m4/isblank.m4])
1309	m4_include([m4/langinfo_h.m4])
1310	m4_include([m4/largefile.m4])
1311	m4_include([m4/lcmessage.m4])
1312	m4_include([m4/lib-ld.m4])
1313	m4_include([m4/lib-link.m4])
1314	m4_include([m4/lib-prefix.m4])
1315	m4_include([m4/limits-h.m4])
1316	m4_include([m4/link.m4])
1317	m4_include([m4/localcharset.m4])
1318	m4_include([m4/locale-fr.m4])
1319	m4_include([m4/locale-ja.m4])
1320	m4_include([m4/locale-tr.m4])
1321	m4_include([m4/locale-zh.m4])
1322	m4_include([m4/locale_h.m4])
1323	m4_include([m4/localeconv.m4])
1324	m4_include([m4/localename.m4])
1325	m4_include([m4/lock.m4])
1326	m4_include([m4/lseek.m4])
1327	m4_include([m4/lstat.m4])
1328	m4_include([m4/malloc.m4])
1329	m4_include([m4/malloca.m4])
1330	m4_include([m4/manywarnings.m4])
1331	m4_include([m4/mbrlen.m4])
1332	m4_include([m4/mbrtowc.m4])
1333	m4_include([m4/mbsinit.m4])
1334	m4_include([m4/mbstate_t.m4])
1335	m4_include([m4/mbtowc.m4])
1336	m4_include([m4/memchr.m4])
1337	m4_include([m4/mempcpy.m4])
1338	m4_include([m4/memrchr.m4])
1339	m4_include([m4/minmax.m4])
1340	m4_include([m4/mkdir.m4])
1341	m4_include([m4/mkostemp.m4])
1342	m4_include([m4/mmap-anon.m4])
1343	m4_include([m4/mode_t.m4])
1344	m4_include([m4/msvc-inval.m4])
1345	m4_include([m4/msvc-nothrow.m4])
1346	m4_include([m4/multiarch.m4])
1347	m4_include([m4/musl.m4])
1348	m4_include([m4/nanosleep.m4])
1349	m4_include([m4/netinet_in_h.m4])
1350	m4_include([m4/nl_langinfo.m4])
1351	m4_include([m4/nls.m4])
1352	m4_include([m4/nocrash.m4])
1353	m4_include([m4/obstack.m4])
1354	m4_include([m4/off_t.m4])
1355	m4_include([m4/open-cloexec.m4])
1356	m4_include([m4/open-slash.m4])
1357	m4_include([m4/open.m4])
1358	m4_include([m4/opendir.m4])
1359	m4_include([m4/pathmax.m4])
1360	m4_include([m4/perl.m4])
1361	m4_include([m4/perror.m4])
1362	m4_include([m4/pipe.m4])
1363	m4_include([m4/po.m4])
1364	m4_include([m4/progtest.m4])
1365	m4_include([m4/pselect.m4])
1366	m4_include([m4/pthread-thread.m4])
1367	m4_include([m4/pthread_h.m4])
1368	m4_include([m4/pthread_rwlock_rdlock.m4])
1369	m4_include([m4/pthread_sigmask.m4])
1370	m4_include([m4/putenv.m4])
1371	m4_include([m4/quote.m4])
1372	m4_include([m4/quotearg.m4])
1373	m4_include([m4/raise.m4])
1374	m4_include([m4/rawmemchr.m4])
1375	m4_include([m4/read-file.m4])
1376	m4_include([m4/readdir.m4])
1377	m4_include([m4/readlink.m4])
1378	m4_include([m4/realloc.m4])
1379	m4_include([m4/reallocarray.m4])
1380	m4_include([m4/regex.m4])
1381	m4_include([m4/rename.m4])
1382	m4_include([m4/rmdir.m4])
1383	m4_include([m4/sched_h.m4])
1384	m4_include([m4/select.m4])
1385	m4_include([m4/selinux-context-h.m4])
1386	m4_include([m4/selinux-label-h.m4])
1387	m4_include([m4/selinux-selinux-h.m4])
1388	m4_include([m4/setenv.m4])
1389	m4_include([m4/setlocale.m4])
1390	m4_include([m4/setlocale_null.m4])
1391	m4_include([m4/signal_h.m4])
1392	m4_include([m4/signalblocking.m4])
1393	m4_include([m4/sleep.m4])
1394	m4_include([m4/socketlib.m4])
1395	m4_include([m4/sockets.m4])
1396	m4_include([m4/socklen.m4])
1397	m4_include([m4/sockpfaf.m4])
1398	m4_include([m4/ssize_t.m4])
1399	m4_include([m4/stat-time.m4])
1400	m4_include([m4/stat.m4])
1401	m4_include([m4/stdalign.m4])
1402	m4_include([m4/stdarg.m4])
1403	m4_include([m4/stddef_h.m4])
1404	m4_include([m4/stdint.m4])
1405	m4_include([m4/stdio_h.m4])
1406	m4_include([m4/stdlib_h.m4])
1407	m4_include([m4/strdup.m4])
1408	m4_include([m4/strerror.m4])
1409	m4_include([m4/strerror_r.m4])
1410	m4_include([m4/string_h.m4])
1411	m4_include([m4/strverscmp.m4])
1412	m4_include([m4/symlink.m4])
1413	m4_include([m4/sys_ioctl_h.m4])
1414	m4_include([m4/sys_random_h.m4])
1415	m4_include([m4/sys_select_h.m4])
1416	m4_include([m4/sys_socket_h.m4])
1417	m4_include([m4/sys_stat_h.m4])
1418	m4_include([m4/sys_time_h.m4])
1419	m4_include([m4/sys_types_h.m4])
1420	m4_include([m4/sys_uio_h.m4])
1421	m4_include([m4/tempname.m4])
1422	m4_include([m4/thread.m4])
1423	m4_include([m4/threadlib.m4])
1424	m4_include([m4/time_h.m4])
1425	m4_include([m4/ungetc.m4])
1426	m4_include([m4/unistd_h.m4])
1427	m4_include([m4/unlocked-io.m4])
1428	m4_include([m4/version-etc.m4])
1429	m4_include([m4/visibility.m4])
1430	m4_include([m4/warn-on-use.m4])
1431	m4_include([m4/warnings.m4])
1432	m4_include([m4/wchar_h.m4])
1433	m4_include([m4/wchar_t.m4])
1434	m4_include([m4/wcrtomb.m4])
1435	m4_include([m4/wctob.m4])
1436	m4_include([m4/wctomb.m4])
1437	m4_include([m4/wctype_h.m4])
1438	m4_include([m4/wint_t.m4])
1439	m4_include([m4/xalloc.m4])
1440	m4_include([m4/year2038.m4])
1441	m4_include([m4/zzgnulib.m4])

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