aclocal.m4@ 67439

最後變更在這個檔案從67439是 65950,由 vboxsync 提交於 8 年前
libxml 2.9.4: fix export
屬性 svn:eol-style 設為 `native`
檔案大小: 50.6 KB

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1	# generated automatically by aclocal 1.15 -- Autoconf --
2
3	# Copyright (C) 1996-2014 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($@)])])
15	m4_ifndef([AC_AUTOCONF_VERSION],
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17	m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
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19	You have another version of autoconf. It may work, but is not guaranteed to.
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22
23	# pkg.m4 - Macros to locate and utilise pkg-config. -- Autoconf --
24	# serial 1 (pkg-config-0.24)
25	#
26	# Copyright © 2004 Scott James Remnant <[email protected]>.
27	#
28	# This program is free software; you can redistribute it and/or modify
29	# it under the terms of the GNU General Public License as published by
30	# the Free Software Foundation; either version 2 of the License, or
31	# (at your option) any later version.
32	#
33	# This program is distributed in the hope that it will be useful, but
34	# WITHOUT ANY WARRANTY; without even the implied warranty of
35	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
36	# General Public License for more details.
37	#
38	# You should have received a copy of the GNU General Public License
39	# along with this program; if not, write to the Free Software
40	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
41	#
42	# As a special exception to the GNU General Public License, if you
43	# distribute this file as part of a program that contains a
44	# configuration script generated by Autoconf, you may include it under
45	# the same distribution terms that you use for the rest of that program.
46
47	# PKG_PROG_PKG_CONFIG([MIN-VERSION])
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57	if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
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91	# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
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106	# _PKG_SHORT_ERRORS_SUPPORTED
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118	# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
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121	#
122	# Note that if there is a possibility the first call to
123	# PKG_CHECK_MODULES might not happen, you should be sure to include an
124	# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
125	#
126	#
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133	pkg_failed=no
134	AC_MSG_CHECKING([for $1])
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136	_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
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139	m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
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143	if test $pkg_failed = yes; then
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148	else
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154	m4_default([$4], [AC_MSG_ERROR(
155	[Package requirements ($2) were not met:
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157	$$1_PKG_ERRORS
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159	Consider adjusting the PKG_CONFIG_PATH environment variable if you
160	installed software in a non-standard prefix.
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162	_PKG_TEXT])[]dnl
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170
171	_PKG_TEXT
172
173	To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
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178	AC_MSG_RESULT([yes])
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180	fi[]dnl
181	])# PKG_CHECK_MODULES
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183
184	# PKG_INSTALLDIR(DIRECTORY)
185	# -------------------------
186	# Substitutes the variable pkgconfigdir as the location where a module
187	# should install pkg-config .pc files. By default the directory is
188	# $libdir/pkgconfig, but the default can be changed by passing
189	# DIRECTORY. The user can override through the --with-pkgconfigdir
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191	AC_DEFUN([PKG_INSTALLDIR],
192	[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
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194	[pkg-config installation directory @<:@]pkg_default[@:>@])
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196	[AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
197	[with_pkgconfigdir=]pkg_default)
198	AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
199	m4_popdef([pkg_default])
200	m4_popdef([pkg_description])
201	]) dnl PKG_INSTALLDIR
202
203
204	# PKG_NOARCH_INSTALLDIR(DIRECTORY)
205	# -------------------------
206	# Substitutes the variable noarch_pkgconfigdir as the location where a
207	# module should install arch-independent pkg-config .pc files. By
208	# default the directory is $datadir/pkgconfig, but the default can be
209	# changed by passing DIRECTORY. The user can override through the
210	# --with-noarch-pkgconfigdir parameter.
211	AC_DEFUN([PKG_NOARCH_INSTALLDIR],
212	[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
213	m4_pushdef([pkg_description],
214	[pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
215	AC_ARG_WITH([noarch-pkgconfigdir],
216	[AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
217	[with_noarch_pkgconfigdir=]pkg_default)
218	AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
219	m4_popdef([pkg_default])
220	m4_popdef([pkg_description])
221	]) dnl PKG_NOARCH_INSTALLDIR
222
223
224	# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
225	# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
226	# -------------------------------------------
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230	AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
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232	_PKG_CONFIG([$1], [variable="][$3]["], [$2])
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234
235	AS_VAR_IF([$1], [""], [$5], [$4])dnl
236	])# PKG_CHECK_VAR
237
238	# Copyright (C) 2002-2014 Free Software Foundation, Inc.
239	#
240	# This file is free software; the Free Software Foundation
241	# gives unlimited permission to copy and/or distribute it,
242	# with or without modifications, as long as this notice is preserved.
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274	# AM_AUX_DIR_EXPAND -- Autoconf --
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276	# Copyright (C) 2001-2014 Free Software Foundation, Inc.
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326	# AM_CONDITIONAL -- Autoconf --
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328	# Copyright (C) 1997-2014 Free Software Foundation, Inc.
329	#
330	# This file is free software; the Free Software Foundation
331	# gives unlimited permission to copy and/or distribute it,
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333
334	# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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355	AC_MSG_ERROR([[conditional "$1" was never defined.
356	Usually this means the macro was only invoked conditionally.]])
357	fi])])
358
359	# Copyright (C) 1999-2014 Free Software Foundation, Inc.
360	#
361	# This file is free software; the Free Software Foundation
362	# gives unlimited permission to copy and/or distribute it,
363	# with or without modifications, as long as this notice is preserved.
364
365
366	# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
367	# written in clear, in which case automake, when reading aclocal.m4,
368	# will think it sees a use, and therefore will trigger all it's
369	# C support machinery. Also note that it means that autoscan, seeing
370	# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
371
372
373	# _AM_DEPENDENCIES(NAME)
374	# ----------------------
375	# See how the compiler implements dependency checking.
376	# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
377	# We try a few techniques and use that to set a single cache variable.
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379	# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
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393	[$1], [UPC], [depcc="$UPC" am_compiler_list=],
394	[$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
395	[depcc="$$1" am_compiler_list=])
396
397	AC_CACHE_CHECK([dependency style of $depcc],
398	[am_cv_$1_dependencies_compiler_type],
399	[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
400	# We make a subdir and do the tests there. Otherwise we can end up
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403	# making a dummy file named 'D' -- because '-MD' means "put the output
404	# in D".
405	rm -rf conftest.dir
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407	# Copy depcomp to subdir because otherwise we won't find it if we're
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409	cp "$am_depcomp" conftest.dir
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411	# We will build objects and dependencies in a subdirectory because
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414	# side effect of compilation, but ICC will put the dependencies in
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416	# directory.
417	mkdir sub
418
419	am_cv_$1_dependencies_compiler_type=none
420	if test "$am_compiler_list" = ""; then
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423	am__universal=false
424	m4_case([$1], [CC],
425	[case " $depcc " in #(
426	\ -arch\ \ -arch\ *) am__universal=true ;;
427	esac],
428	[CXX],
429	[case " $depcc " in #(
430	\ -arch\ \ -arch\ *) am__universal=true ;;
431	esac])
432
433	for depmode in $am_compiler_list; do
434	# Setup a source with many dependencies, because some compilers
435	# like to wrap large dependency lists on column 80 (with \), and
436	# we should not choose a depcomp mode which is confused by this.
437	#
438	# We need to recreate these files for each test, as the compiler may
439	# overwrite some of them when testing with obscure command lines.
440	# This happens at least with the AIX C compiler.
441	: > sub/conftest.c
442	for i in 1 2 3 4 5 6; do
443	echo '#include "conftst'$i'.h"' >> sub/conftest.c
444	# Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
445	# Solaris 10 /bin/sh.
446	echo '/* dummy */' > sub/conftst$i.h
447	done
448	echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
449
450	# We check with '-c' and '-o' for the sake of the "dashmstdout"
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452	# handle '-M -o', and we need to detect this. Also, some Intel
453	# versions had trouble with output in subdirs.
454	am__obj=sub/conftest.${OBJEXT-o}
455	am__minus_obj="-o $am__obj"
456	case $depmode in
457	gcc)
458	# This depmode causes a compiler race in universal mode.
459	test "$am__universal" = false \|\| continue
460	;;
461	nosideeffect)
462	# After this tag, mechanisms are not by side-effect, so they'll
463	# only be used when explicitly requested.
464	if test "x$enable_dependency_tracking" = xyes; then
465	continue
466	else
467	break
468	fi
469	;;
470	msvc7 \| msvc7msys \| msvisualcpp \| msvcmsys)
471	# This compiler won't grok '-c -o', but also, the minuso test has
472	# not run yet. These depmodes are late enough in the game, and
473	# so weak that their functioning should not be impacted.
474	am__obj=conftest.${OBJEXT-o}
475	am__minus_obj=
476	;;
477	none) break ;;
478	esac
479	if depmode=$depmode \
480	source=sub/conftest.c object=$am__obj \
481	depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
482	$SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
483	>/dev/null 2>conftest.err &&
484	grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
485	grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
486	grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
487	${MAKE-make} -s -f confmf > /dev/null 2>&1; then
488	# icc doesn't choke on unknown options, it will just issue warnings
489	# or remarks (even with -Werror). So we grep stderr for any message
490	# that says an option was ignored or not supported.
491	# When given -MP, icc 7.0 and 7.1 complain thusly:
492	# icc: Command line warning: ignoring option '-M'; no argument required
493	# The diagnosis changed in icc 8.0:
494	# icc: Command line remark: option '-MP' not supported
495	if (grep 'ignoring option' conftest.err \|\|
496	grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
497	am_cv_$1_dependencies_compiler_type=$depmode
498	break
499	fi
500	fi
501	done
502
503	cd ..
504	rm -rf conftest.dir
505	else
506	am_cv_$1_dependencies_compiler_type=none
507	fi
508	])
509	AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
510	AM_CONDITIONAL([am__fastdep$1], [
511	test "x$enable_dependency_tracking" != xno \
512	&& test "$am_cv_$1_dependencies_compiler_type" = gcc3])
513	])
514
515
516	# AM_SET_DEPDIR
517	# -------------
518	# Choose a directory name for dependency files.
519	# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
520	AC_DEFUN([AM_SET_DEPDIR],
521	[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
522	AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
523	])
524
525
526	# AM_DEP_TRACK
527	# ------------
528	AC_DEFUN([AM_DEP_TRACK],
529	[AC_ARG_ENABLE([dependency-tracking], [dnl
530	AS_HELP_STRING(
531	[--enable-dependency-tracking],
532	[do not reject slow dependency extractors])
533	AS_HELP_STRING(
534	[--disable-dependency-tracking],
535	[speeds up one-time build])])
536	if test "x$enable_dependency_tracking" != xno; then
537	am_depcomp="$ac_aux_dir/depcomp"
538	AMDEPBACKSLASH='\'
539	am__nodep='_no'
540	fi
541	AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
542	AC_SUBST([AMDEPBACKSLASH])dnl
543	_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
544	AC_SUBST([am__nodep])dnl
545	_AM_SUBST_NOTMAKE([am__nodep])dnl
546	])
547
548	# Generate code to set up dependency tracking. -- Autoconf --
549
550	# Copyright (C) 1999-2014 Free Software Foundation, Inc.
551	#
552	# This file is free software; the Free Software Foundation
553	# gives unlimited permission to copy and/or distribute it,
554	# with or without modifications, as long as this notice is preserved.
555
556
557	# _AM_OUTPUT_DEPENDENCY_COMMANDS
558	# ------------------------------
559	AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
560	[{
561	# Older Autoconf quotes --file arguments for eval, but not when files
562	# are listed without --file. Let's play safe and only enable the eval
563	# if we detect the quoting.
564	case $CONFIG_FILES in
565	\') eval set x "$CONFIG_FILES" ;;
566	*) set x $CONFIG_FILES ;;
567	esac
568	shift
569	for mf
570	do
571	# Strip MF so we end up with the name of the file.
572	mf=`echo "$mf" \| sed -e 's/:.*$//'`
573	# Check whether this is an Automake generated Makefile or not.
574	# We used to match only the files named 'Makefile.in', but
575	# some people rename them; so instead we look at the file content.
576	# Grep'ing the first line is not enough: some people post-process
577	# each Makefile.in and add a new line on top of each file to say so.
578	# Grep'ing the whole file is not good either: AIX grep has a line
579	# limit of 2048, but all sed's we know have understand at least 4000.
580	if sed -n 's,^#.generated by automake.,X,p' "$mf" \| grep X >/dev/null 2>&1; then
581	dirpart=`AS_DIRNAME("$mf")`
582	else
583	continue
584	fi
585	# Extract the definition of DEPDIR, am__include, and am__quote
586	# from the Makefile without running 'make'.
587	DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
588	test -z "$DEPDIR" && continue
589	am__include=`sed -n 's/^am__include = //p' < "$mf"`
590	test -z "$am__include" && continue
591	am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
592	# Find all dependency output files, they are included files with
593	# $(DEPDIR) in their names. We invoke sed twice because it is the
594	# simplest approach to changing $(DEPDIR) to its actual value in the
595	# expansion.
596	for file in `sed -n "
597	s/^$am__include $am__quote$.(DEPDIR).$$am__quote"'$/\1/p' <"$mf" \| \
598	sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
599	# Make sure the directory exists.
600	test -f "$dirpart/$file" && continue
601	fdir=`AS_DIRNAME(["$file"])`
602	AS_MKDIR_P([$dirpart/$fdir])
603	# echo "creating $dirpart/$file"
604	echo '# dummy' > "$dirpart/$file"
605	done
606	done
607	}
608	])# _AM_OUTPUT_DEPENDENCY_COMMANDS
609
610
611	# AM_OUTPUT_DEPENDENCY_COMMANDS
612	# -----------------------------
613	# This macro should only be invoked once -- use via AC_REQUIRE.
614	#
615	# This code is only required when automatic dependency tracking
616	# is enabled. FIXME. This creates each '.P' file that we will
617	# need in order to bootstrap the dependency handling code.
618	AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
619	[AC_CONFIG_COMMANDS([depfiles],
620	[test x"$AMDEP_TRUE" != x"" \|\| _AM_OUTPUT_DEPENDENCY_COMMANDS],
621	[AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
622	])
623
624	# Do all the work for Automake. -- Autoconf --
625
626	# Copyright (C) 1996-2014 Free Software Foundation, Inc.
627	#
628	# This file is free software; the Free Software Foundation
629	# gives unlimited permission to copy and/or distribute it,
630	# with or without modifications, as long as this notice is preserved.
631
632	# This macro actually does too much. Some checks are only needed if
633	# your package does certain things. But this isn't really a big deal.
634
635	dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
636	m4_define([AC_PROG_CC],
637	m4_defn([AC_PROG_CC])
638	[_AM_PROG_CC_C_O
639	])
640
641	# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
642	# AM_INIT_AUTOMAKE([OPTIONS])
643	# -----------------------------------------------
644	# The call with PACKAGE and VERSION arguments is the old style
645	# call (pre autoconf-2.50), which is being phased out. PACKAGE
646	# and VERSION should now be passed to AC_INIT and removed from
647	# the call to AM_INIT_AUTOMAKE.
648	# We support both call styles for the transition. After
649	# the next Automake release, Autoconf can make the AC_INIT
650	# arguments mandatory, and then we can depend on a new Autoconf
651	# release and drop the old call support.
652	AC_DEFUN([AM_INIT_AUTOMAKE],
653	[AC_PREREQ([2.65])dnl
654	dnl Autoconf wants to disallow AM_ names. We explicitly allow
655	dnl the ones we care about.
656	m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
657	AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
658	AC_REQUIRE([AC_PROG_INSTALL])dnl
659	if test "`cd $srcdir && pwd`" != "`pwd`"; then
660	# Use -I$(srcdir) only when $(srcdir) != ., so that make's output
661	# is not polluted with repeated "-I."
662	AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
663	# test to see if srcdir already configured
664	if test -f $srcdir/config.status; then
665	AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
666	fi
667	fi
668
669	# test whether we have cygpath
670	if test -z "$CYGPATH_W"; then
671	if (cygpath --version) >/dev/null 2>/dev/null; then
672	CYGPATH_W='cygpath -w'
673	else
674	CYGPATH_W=echo
675	fi
676	fi
677	AC_SUBST([CYGPATH_W])
678
679	# Define the identity of the package.
680	dnl Distinguish between old-style and new-style calls.
681	m4_ifval([$2],
682	[AC_DIAGNOSE([obsolete],
683	[$0: two- and three-arguments forms are deprecated.])
684	m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
685	AC_SUBST([PACKAGE], [$1])dnl
686	AC_SUBST([VERSION], [$2])],
687	[_AM_SET_OPTIONS([$1])dnl
688	dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
689	m4_if(
690	m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
691	[ok:ok],,
692	[m4_fatal([AC_INIT should be called with package and version arguments])])dnl
693	AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
694	AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
695
696	_AM_IF_OPTION([no-define],,
697	[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
698	AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
699
700	# Some tools Automake needs.
701	AC_REQUIRE([AM_SANITY_CHECK])dnl
702	AC_REQUIRE([AC_ARG_PROGRAM])dnl
703	AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
704	AM_MISSING_PROG([AUTOCONF], [autoconf])
705	AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
706	AM_MISSING_PROG([AUTOHEADER], [autoheader])
707	AM_MISSING_PROG([MAKEINFO], [makeinfo])
708	AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
709	AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
710	AC_REQUIRE([AC_PROG_MKDIR_P])dnl
711	# For better backward compatibility. To be removed once Automake 1.9.x
712	# dies out for good. For more background, see:
713	# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
714	# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
715	AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
716	# We need awk for the "check" target (and possibly the TAP driver). The
717	# system "awk" is bad on some platforms.
718	AC_REQUIRE([AC_PROG_AWK])dnl
719	AC_REQUIRE([AC_PROG_MAKE_SET])dnl
720	AC_REQUIRE([AM_SET_LEADING_DOT])dnl
721	_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
722	[_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
723	[_AM_PROG_TAR([v7])])])
724	_AM_IF_OPTION([no-dependencies],,
725	[AC_PROVIDE_IFELSE([AC_PROG_CC],
726	[_AM_DEPENDENCIES([CC])],
727	[m4_define([AC_PROG_CC],
728	m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
729	AC_PROVIDE_IFELSE([AC_PROG_CXX],
730	[_AM_DEPENDENCIES([CXX])],
731	[m4_define([AC_PROG_CXX],
732	m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
733	AC_PROVIDE_IFELSE([AC_PROG_OBJC],
734	[_AM_DEPENDENCIES([OBJC])],
735	[m4_define([AC_PROG_OBJC],
736	m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
737	AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
738	[_AM_DEPENDENCIES([OBJCXX])],
739	[m4_define([AC_PROG_OBJCXX],
740	m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
741	])
742	AC_REQUIRE([AM_SILENT_RULES])dnl
743	dnl The testsuite driver may need to know about EXEEXT, so add the
744	dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
745	dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
746	AC_CONFIG_COMMANDS_PRE(dnl
747	[m4_provide_if([_AM_COMPILER_EXEEXT],
748	[AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
749
750	# POSIX will say in a future version that running "rm -f" with no argument
751	# is OK; and we want to be able to make that assumption in our Makefile
752	# recipes. So use an aggressive probe to check that the usage we want is
753	# actually supported "in the wild" to an acceptable degree.
754	# See automake bug#10828.
755	# To make any issue more visible, cause the running configure to be aborted
756	# by default if the 'rm' program in use doesn't match our expectations; the
757	# user can still override this though.
758	if rm -f && rm -fr && rm -rf; then : OK; else
759	cat >&2 <<'END'
760	Oops!
761
762	Your 'rm' program seems unable to run without file operands specified
763	on the command line, even when the '-f' option is present. This is contrary
764	to the behaviour of most rm programs out there, and not conforming with
765	the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
766
767	Please tell [email protected] about your system, including the value
768	of your $PATH and any error possibly output before this message. This
769	can help us improve future automake versions.
770
771	END
772	if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
773	echo 'Configuration will proceed anyway, since you have set the' >&2
774	echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
775	echo >&2
776	else
777	cat >&2 <<'END'
778	Aborting the configuration process, to ensure you take notice of the issue.
779
780	You can download and install GNU coreutils to get an 'rm' implementation
781	that behaves properly: <http://www.gnu.org/software/coreutils/>.
782
783	If you want to complete the configuration process using your problematic
784	'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
785	to "yes", and re-run configure.
786
787	END
788	AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
789	fi
790	fi
791	dnl The trailing newline in this macro's definition is deliberate, for
792	dnl backward compatibility and to allow trailing 'dnl'-style comments
793	dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
794	])
795
796	dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
797	dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
798	dnl mangled by Autoconf and run in a shell conditional statement.
799	m4_define([_AC_COMPILER_EXEEXT],
800	m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
801
802	# When config.status generates a header, we must update the stamp-h file.
803	# This file resides in the same directory as the config header
804	# that is generated. The stamp files are numbered to have different names.
805
806	# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
807	# loop where config.status creates the headers, so we can generate
808	# our stamp files there.
809	AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
810	[# Compute $1's index in $config_headers.
811	_am_arg=$1
812	_am_stamp_count=1
813	for _am_header in $config_headers :; do
814	case $_am_header in
815	$_am_arg \| $_am_arg:* )
816	break ;;
817	* )
818	_am_stamp_count=`expr $_am_stamp_count + 1` ;;
819	esac
820	done
821	echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
822
823	# Copyright (C) 2001-2014 Free Software Foundation, Inc.
824	#
825	# This file is free software; the Free Software Foundation
826	# gives unlimited permission to copy and/or distribute it,
827	# with or without modifications, as long as this notice is preserved.
828
829	# AM_PROG_INSTALL_SH
830	# ------------------
831	# Define $install_sh.
832	AC_DEFUN([AM_PROG_INSTALL_SH],
833	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
834	if test x"${install_sh+set}" != xset; then
835	case $am_aux_dir in
836	\ \| \ )
837	install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
838	*)
839	install_sh="\${SHELL} $am_aux_dir/install-sh"
840	esac
841	fi
842	AC_SUBST([install_sh])])
843
844	# Copyright (C) 2003-2014 Free Software Foundation, Inc.
845	#
846	# This file is free software; the Free Software Foundation
847	# gives unlimited permission to copy and/or distribute it,
848	# with or without modifications, as long as this notice is preserved.
849
850	# Check whether the underlying file-system supports filenames
851	# with a leading dot. For instance MS-DOS doesn't.
852	AC_DEFUN([AM_SET_LEADING_DOT],
853	[rm -rf .tst 2>/dev/null
854	mkdir .tst 2>/dev/null
855	if test -d .tst; then
856	am__leading_dot=.
857	else
858	am__leading_dot=_
859	fi
860	rmdir .tst 2>/dev/null
861	AC_SUBST([am__leading_dot])])
862
863	# Add --enable-maintainer-mode option to configure. -- Autoconf --
864	# From Jim Meyering
865
866	# Copyright (C) 1996-2014 Free Software Foundation, Inc.
867	#
868	# This file is free software; the Free Software Foundation
869	# gives unlimited permission to copy and/or distribute it,
870	# with or without modifications, as long as this notice is preserved.
871
872	# AM_MAINTAINER_MODE([DEFAULT-MODE])
873	# ----------------------------------
874	# Control maintainer-specific portions of Makefiles.
875	# Default is to disable them, unless 'enable' is passed literally.
876	# For symmetry, 'disable' may be passed as well. Anyway, the user
877	# can override the default with the --enable/--disable switch.
878	AC_DEFUN([AM_MAINTAINER_MODE],
879	[m4_case(m4_default([$1], [disable]),
880	[enable], [m4_define([am_maintainer_other], [disable])],
881	[disable], [m4_define([am_maintainer_other], [enable])],
882	[m4_define([am_maintainer_other], [enable])
883	m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
884	AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
885	dnl maintainer-mode's default is 'disable' unless 'enable' is passed
886	AC_ARG_ENABLE([maintainer-mode],
887	[AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
888	am_maintainer_other[ make rules and dependencies not useful
889	(and sometimes confusing) to the casual installer])],
890	[USE_MAINTAINER_MODE=$enableval],
891	[USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
892	AC_MSG_RESULT([$USE_MAINTAINER_MODE])
893	AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
894	MAINT=$MAINTAINER_MODE_TRUE
895	AC_SUBST([MAINT])dnl
896	]
897	)
898
899	# Check to see how 'make' treats includes. -- Autoconf --
900
901	# Copyright (C) 2001-2014 Free Software Foundation, Inc.
902	#
903	# This file is free software; the Free Software Foundation
904	# gives unlimited permission to copy and/or distribute it,
905	# with or without modifications, as long as this notice is preserved.
906
907	# AM_MAKE_INCLUDE()
908	# -----------------
909	# Check to see how make treats includes.
910	AC_DEFUN([AM_MAKE_INCLUDE],
911	[am_make=${MAKE-make}
912	cat > confinc << 'END'
913	am__doit:
914	@echo this is the am__doit target
915	.PHONY: am__doit
916	END
917	# If we don't find an include directive, just comment out the code.
918	AC_MSG_CHECKING([for style of include used by $am_make])
919	am__include="#"
920	am__quote=
921	_am_result=none
922	# First try GNU make style include.
923	echo "include confinc" > confmf
924	# Ignore all kinds of additional output from 'make'.
925	case `$am_make -s -f confmf 2> /dev/null` in #(
926	the\ am__doit\ target)
927	am__include=include
928	am__quote=
929	_am_result=GNU
930	;;
931	esac
932	# Now try BSD make style include.
933	if test "$am__include" = "#"; then
934	echo '.include "confinc"' > confmf
935	case `$am_make -s -f confmf 2> /dev/null` in #(
936	the\ am__doit\ target)
937	am__include=.include
938	am__quote="\""
939	_am_result=BSD
940	;;
941	esac
942	fi
943	AC_SUBST([am__include])
944	AC_SUBST([am__quote])
945	AC_MSG_RESULT([$_am_result])
946	rm -f confinc confmf
947	])
948
949	# Fake the existence of programs that GNU maintainers use. -- Autoconf --
950
951	# Copyright (C) 1997-2014 Free Software Foundation, Inc.
952	#
953	# This file is free software; the Free Software Foundation
954	# gives unlimited permission to copy and/or distribute it,
955	# with or without modifications, as long as this notice is preserved.
956
957	# AM_MISSING_PROG(NAME, PROGRAM)
958	# ------------------------------
959	AC_DEFUN([AM_MISSING_PROG],
960	[AC_REQUIRE([AM_MISSING_HAS_RUN])
961	$1=${$1-"${am_missing_run}$2"}
962	AC_SUBST($1)])
963
964	# AM_MISSING_HAS_RUN
965	# ------------------
966	# Define MISSING if not defined so far and test if it is modern enough.
967	# If it is, set am_missing_run to use it, otherwise, to nothing.
968	AC_DEFUN([AM_MISSING_HAS_RUN],
969	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
970	AC_REQUIRE_AUX_FILE([missing])dnl
971	if test x"${MISSING+set}" != xset; then
972	case $am_aux_dir in
973	\ \| \ )
974	MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
975	*)
976	MISSING="\${SHELL} $am_aux_dir/missing" ;;
977	esac
978	fi
979	# Use eval to expand $SHELL
980	if eval "$MISSING --is-lightweight"; then
981	am_missing_run="$MISSING "
982	else
983	am_missing_run=
984	AC_MSG_WARN(['missing' script is too old or missing])
985	fi
986	])
987
988	# Helper functions for option handling. -- Autoconf --
989
990	# Copyright (C) 2001-2014 Free Software Foundation, Inc.
991	#
992	# This file is free software; the Free Software Foundation
993	# gives unlimited permission to copy and/or distribute it,
994	# with or without modifications, as long as this notice is preserved.
995
996	# _AM_MANGLE_OPTION(NAME)
997	# -----------------------
998	AC_DEFUN([_AM_MANGLE_OPTION],
999	[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1000
1001	# _AM_SET_OPTION(NAME)
1002	# --------------------
1003	# Set option NAME. Presently that only means defining a flag for this option.
1004	AC_DEFUN([_AM_SET_OPTION],
1005	[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1006
1007	# _AM_SET_OPTIONS(OPTIONS)
1008	# ------------------------
1009	# OPTIONS is a space-separated list of Automake options.
1010	AC_DEFUN([_AM_SET_OPTIONS],
1011	[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1012
1013	# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1014	# -------------------------------------------
1015	# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1016	AC_DEFUN([_AM_IF_OPTION],
1017	[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1018
1019	# Copyright (C) 1999-2014 Free Software Foundation, Inc.
1020	#
1021	# This file is free software; the Free Software Foundation
1022	# gives unlimited permission to copy and/or distribute it,
1023	# with or without modifications, as long as this notice is preserved.
1024
1025	# _AM_PROG_CC_C_O
1026	# ---------------
1027	# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
1028	# to automatically call this.
1029	AC_DEFUN([_AM_PROG_CC_C_O],
1030	[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1031	AC_REQUIRE_AUX_FILE([compile])dnl
1032	AC_LANG_PUSH([C])dnl
1033	AC_CACHE_CHECK(
1034	[whether $CC understands -c and -o together],
1035	[am_cv_prog_cc_c_o],
1036	[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
1037	# Make sure it works both with $CC and with simple cc.
1038	# Following AC_PROG_CC_C_O, we do the test twice because some
1039	# compilers refuse to overwrite an existing .o file with -o,
1040	# though they will create one.
1041	am_cv_prog_cc_c_o=yes
1042	for am_i in 1 2; do
1043	if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
1044	&& test -f conftest2.$ac_objext; then
1045	: OK
1046	else
1047	am_cv_prog_cc_c_o=no
1048	break
1049	fi
1050	done
1051	rm -f core conftest*
1052	unset am_i])
1053	if test "$am_cv_prog_cc_c_o" != yes; then
1054	# Losing compiler, so override with the script.
1055	# FIXME: It is wrong to rewrite CC.
1056	# But if we don't then we get into trouble of one sort or another.
1057	# A longer-term fix would be to have automake use am__CC in this case,
1058	# and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
1059	CC="$am_aux_dir/compile $CC"
1060	fi
1061	AC_LANG_POP([C])])
1062
1063	# For backward compatibility.
1064	AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1065
1066	# Copyright (C) 2001-2014 Free Software Foundation, Inc.
1067	#
1068	# This file is free software; the Free Software Foundation
1069	# gives unlimited permission to copy and/or distribute it,
1070	# with or without modifications, as long as this notice is preserved.
1071
1072	# AM_RUN_LOG(COMMAND)
1073	# -------------------
1074	# Run COMMAND, save the exit status in ac_status, and log it.
1075	# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1076	AC_DEFUN([AM_RUN_LOG],
1077	[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1078	($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1079	ac_status=$?
1080	echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1081	(exit $ac_status); }])
1082
1083	# Check to make sure that the build environment is sane. -- Autoconf --
1084
1085	# Copyright (C) 1996-2014 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_SANITY_CHECK
1092	# ---------------
1093	AC_DEFUN([AM_SANITY_CHECK],
1094	[AC_MSG_CHECKING([whether build environment is sane])
1095	# Reject unsafe characters in $srcdir or the absolute working directory
1096	# name. Accept space and tab only in the latter.
1097	am_lf='
1098	'
1099	case `pwd` in
1100	[[\\\"\#\$\&\'\`$am_lf]])
1101	AC_MSG_ERROR([unsafe absolute working directory name]);;
1102	esac
1103	case $srcdir in
1104	[[\\\"\#\$\&\'\`$am_lf\ \ ]])
1105	AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1106	esac
1107
1108	# Do 'set' in a subshell so we don't clobber the current shell's
1109	# arguments. Must try -L first in case configure is actually a
1110	# symlink; some systems play weird games with the mod time of symlinks
1111	# (eg FreeBSD returns the mod time of the symlink's containing
1112	# directory).
1113	if (
1114	am_has_slept=no
1115	for am_try in 1 2; do
1116	echo "timestamp, slept: $am_has_slept" > conftest.file
1117	set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1118	if test "$[*]" = "X"; then
1119	# -L didn't work.
1120	set X `ls -t "$srcdir/configure" conftest.file`
1121	fi
1122	if test "$[*]" != "X $srcdir/configure conftest.file" \
1123	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
1124
1125	# If neither matched, then we have a broken ls. This can happen
1126	# if, for instance, CONFIG_SHELL is bash and it inherits a
1127	# broken ls alias from the environment. This has actually
1128	# happened. Such a system could not be considered "sane".
1129	AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
1130	alias in your environment])
1131	fi
1132	if test "$[2]" = conftest.file \|\| test $am_try -eq 2; then
1133	break
1134	fi
1135	# Just in case.
1136	sleep 1
1137	am_has_slept=yes
1138	done
1139	test "$[2]" = conftest.file
1140	)
1141	then
1142	# Ok.
1143	:
1144	else
1145	AC_MSG_ERROR([newly created file is older than distributed files!
1146	Check your system clock])
1147	fi
1148	AC_MSG_RESULT([yes])
1149	# If we didn't sleep, we still need to ensure time stamps of config.status and
1150	# generated files are strictly newer.
1151	am_sleep_pid=
1152	if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1153	( sleep 1 ) &
1154	am_sleep_pid=$!
1155	fi
1156	AC_CONFIG_COMMANDS_PRE(
1157	[AC_MSG_CHECKING([that generated files are newer than configure])
1158	if test -n "$am_sleep_pid"; then
1159	# Hide warnings about reused PIDs.
1160	wait $am_sleep_pid 2>/dev/null
1161	fi
1162	AC_MSG_RESULT([done])])
1163	rm -f conftest.file
1164	])
1165
1166	# Copyright (C) 2009-2014 Free Software Foundation, Inc.
1167	#
1168	# This file is free software; the Free Software Foundation
1169	# gives unlimited permission to copy and/or distribute it,
1170	# with or without modifications, as long as this notice is preserved.
1171
1172	# AM_SILENT_RULES([DEFAULT])
1173	# --------------------------
1174	# Enable less verbose build rules; with the default set to DEFAULT
1175	# ("yes" being less verbose, "no" or empty being verbose).
1176	AC_DEFUN([AM_SILENT_RULES],
1177	[AC_ARG_ENABLE([silent-rules], [dnl
1178	AS_HELP_STRING(
1179	[--enable-silent-rules],
1180	[less verbose build output (undo: "make V=1")])
1181	AS_HELP_STRING(
1182	[--disable-silent-rules],
1183	[verbose build output (undo: "make V=0")])dnl
1184	])
1185	case $enable_silent_rules in @%:@ (((
1186	yes) AM_DEFAULT_VERBOSITY=0;;
1187	no) AM_DEFAULT_VERBOSITY=1;;
1188	*) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1189	esac
1190	dnl
1191	dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1192	dnl do not support nested variable expansions.
1193	dnl See automake bug#9928 and bug#10237.
1194	am_make=${MAKE-make}
1195	AC_CACHE_CHECK([whether $am_make supports nested variables],
1196	[am_cv_make_support_nested_variables],
1197	[if AS_ECHO([['TRUE=$(BAR$(V))
1198	BAR0=false
1199	BAR1=true
1200	V=1
1201	am__doit:
1202	@$(TRUE)
1203	.PHONY: am__doit']]) \| $am_make -f - >/dev/null 2>&1; then
1204	am_cv_make_support_nested_variables=yes
1205	else
1206	am_cv_make_support_nested_variables=no
1207	fi])
1208	if test $am_cv_make_support_nested_variables = yes; then
1209	dnl Using '$V' instead of '$(V)' breaks IRIX make.
1210	AM_V='$(V)'
1211	AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1212	else
1213	AM_V=$AM_DEFAULT_VERBOSITY
1214	AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1215	fi
1216	AC_SUBST([AM_V])dnl
1217	AM_SUBST_NOTMAKE([AM_V])dnl
1218	AC_SUBST([AM_DEFAULT_V])dnl
1219	AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1220	AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1221	AM_BACKSLASH='\'
1222	AC_SUBST([AM_BACKSLASH])dnl
1223	_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1224	])
1225
1226	# Copyright (C) 2001-2014 Free Software Foundation, Inc.
1227	#
1228	# This file is free software; the Free Software Foundation
1229	# gives unlimited permission to copy and/or distribute it,
1230	# with or without modifications, as long as this notice is preserved.
1231
1232	# AM_PROG_INSTALL_STRIP
1233	# ---------------------
1234	# One issue with vendor 'install' (even GNU) is that you can't
1235	# specify the program used to strip binaries. This is especially
1236	# annoying in cross-compiling environments, where the build's strip
1237	# is unlikely to handle the host's binaries.
1238	# Fortunately install-sh will honor a STRIPPROG variable, so we
1239	# always use install-sh in "make install-strip", and initialize
1240	# STRIPPROG with the value of the STRIP variable (set by the user).
1241	AC_DEFUN([AM_PROG_INSTALL_STRIP],
1242	[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1243	# Installed binaries are usually stripped using 'strip' when the user
1244	# run "make install-strip". However 'strip' might not be the right
1245	# tool to use in cross-compilation environments, therefore Automake
1246	# will honor the 'STRIP' environment variable to overrule this program.
1247	dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1248	if test "$cross_compiling" != no; then
1249	AC_CHECK_TOOL([STRIP], [strip], :)
1250	fi
1251	INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1252	AC_SUBST([INSTALL_STRIP_PROGRAM])])
1253
1254	# Copyright (C) 2006-2014 Free Software Foundation, Inc.
1255	#
1256	# This file is free software; the Free Software Foundation
1257	# gives unlimited permission to copy and/or distribute it,
1258	# with or without modifications, as long as this notice is preserved.
1259
1260	# _AM_SUBST_NOTMAKE(VARIABLE)
1261	# ---------------------------
1262	# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1263	# This macro is traced by Automake.
1264	AC_DEFUN([_AM_SUBST_NOTMAKE])
1265
1266	# AM_SUBST_NOTMAKE(VARIABLE)
1267	# --------------------------
1268	# Public sister of _AM_SUBST_NOTMAKE.
1269	AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1270
1271	# Check how to create a tarball. -- Autoconf --
1272
1273	# Copyright (C) 2004-2014 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_PROG_TAR(FORMAT)
1280	# --------------------
1281	# Check how to create a tarball in format FORMAT.
1282	# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1283	#
1284	# Substitute a variable $(am__tar) that is a command
1285	# writing to stdout a FORMAT-tarball containing the directory
1286	# $tardir.
1287	# tardir=directory && $(am__tar) > result.tar
1288	#
1289	# Substitute a variable $(am__untar) that extract such
1290	# a tarball read from stdin.
1291	# $(am__untar) < result.tar
1292	#
1293	AC_DEFUN([_AM_PROG_TAR],
1294	[# Always define AMTAR for backward compatibility. Yes, it's still used
1295	# in the wild :-( We should find a proper way to deprecate it ...
1296	AC_SUBST([AMTAR], ['$${TAR-tar}'])
1297
1298	# We'll loop over all known methods to create a tar archive until one works.
1299	_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1300
1301	m4_if([$1], [v7],
1302	[am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1303
1304	[m4_case([$1],
1305	[ustar],
1306	[# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1307	# There is notably a 21 bits limit for the UID and the GID. In fact,
1308	# the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1309	# and bug#13588).
1310	am_max_uid=2097151 # 2^21 - 1
1311	am_max_gid=$am_max_uid
1312	# The $UID and $GID variables are not portable, so we need to resort
1313	# to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1314	# below are definitely unexpected, so allow the users to see them
1315	# (that is, avoid stderr redirection).
1316	am_uid=`id -u \|\| echo unknown`
1317	am_gid=`id -g \|\| echo unknown`
1318	AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1319	if test $am_uid -le $am_max_uid; then
1320	AC_MSG_RESULT([yes])
1321	else
1322	AC_MSG_RESULT([no])
1323	_am_tools=none
1324	fi
1325	AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1326	if test $am_gid -le $am_max_gid; then
1327	AC_MSG_RESULT([yes])
1328	else
1329	AC_MSG_RESULT([no])
1330	_am_tools=none
1331	fi],
1332
1333	[pax],
1334	[],
1335
1336	[m4_fatal([Unknown tar format])])
1337
1338	AC_MSG_CHECKING([how to create a $1 tar archive])
1339
1340	# Go ahead even if we have the value already cached. We do so because we
1341	# need to set the values for the 'am__tar' and 'am__untar' variables.
1342	_am_tools=${am_cv_prog_tar_$1-$_am_tools}
1343
1344	for _am_tool in $_am_tools; do
1345	case $_am_tool in
1346	gnutar)
1347	for _am_tar in tar gnutar gtar; do
1348	AM_RUN_LOG([$_am_tar --version]) && break
1349	done
1350	am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1351	am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1352	am__untar="$_am_tar -xf -"
1353	;;
1354	plaintar)
1355	# Must skip GNU tar: if it does not support --format= it doesn't create
1356	# ustar tarball either.
1357	(tar --version) >/dev/null 2>&1 && continue
1358	am__tar='tar chf - "$$tardir"'
1359	am__tar_='tar chf - "$tardir"'
1360	am__untar='tar xf -'
1361	;;
1362	pax)
1363	am__tar='pax -L -x $1 -w "$$tardir"'
1364	am__tar_='pax -L -x $1 -w "$tardir"'
1365	am__untar='pax -r'
1366	;;
1367	cpio)
1368	am__tar='find "$$tardir" -print \| cpio -o -H $1 -L'
1369	am__tar_='find "$tardir" -print \| cpio -o -H $1 -L'
1370	am__untar='cpio -i -H $1 -d'
1371	;;
1372	none)
1373	am__tar=false
1374	am__tar_=false
1375	am__untar=false
1376	;;
1377	esac
1378
1379	# If the value was cached, stop now. We just wanted to have am__tar
1380	# and am__untar set.
1381	test -n "${am_cv_prog_tar_$1}" && break
1382
1383	# tar/untar a dummy directory, and stop if the command works.
1384	rm -rf conftest.dir
1385	mkdir conftest.dir
1386	echo GrepMe > conftest.dir/file
1387	AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1388	rm -rf conftest.dir
1389	if test -s conftest.tar; then
1390	AM_RUN_LOG([$am__untar <conftest.tar])
1391	AM_RUN_LOG([cat conftest.dir/file])
1392	grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1393	fi
1394	done
1395	rm -rf conftest.dir
1396
1397	AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1398	AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1399
1400	AC_SUBST([am__tar])
1401	AC_SUBST([am__untar])
1402	]) # _AM_PROG_TAR
1403
1404	m4_include([m4/libtool.m4])
1405	m4_include([m4/ltoptions.m4])
1406	m4_include([m4/ltsugar.m4])
1407	m4_include([m4/ltversion.m4])
1408	m4_include([m4/lt~obsolete.m4])
1409	m4_include([acinclude.m4])

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