1# generated automatically by aclocal 1.16.3 -*- Autoconf -*-
2
3# Copyright (C) 1996-2020 Free Software Foundation, Inc.
4
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
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22
23# Copyright (C) 2002-2020 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)
30# ----------------------------
31# Automake X.Y traces this macro to ensure aclocal.m4 has been
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42# _AM_AUTOCONF_VERSION(VERSION)
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49# AM_SET_CURRENT_AUTOMAKE_VERSION
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59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2020 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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81# $top_srcdir/$ac_aux_dir/missing
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83#    fails when called from a subdirectory in a VPATH build with
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105AC_DEFUN([AM_AUX_DIR_EXPAND],
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108am_aux_dir=`cd "$ac_aux_dir" && pwd`
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110
111# Do all the work for Automake.                             -*- Autoconf -*-
112
113# Copyright (C) 1996-2020 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# This macro actually does too much.  Some checks are only needed if
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121
122dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
123m4_define([AC_PROG_CC],
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127
128# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
129# AM_INIT_AUTOMAKE([OPTIONS])
130# -----------------------------------------------
131# The call with PACKAGE and VERSION arguments is the old style
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139AC_DEFUN([AM_INIT_AUTOMAKE],
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155
156# test whether we have cygpath
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161    CYGPATH_W=echo
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173 AC_SUBST([VERSION], [$2])],
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175dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
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177  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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181 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
182
183_AM_IF_OPTION([no-define],,
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187# Some tools Automake needs.
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189AC_REQUIRE([AC_ARG_PROGRAM])dnl
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191AM_MISSING_PROG([AUTOCONF], [autoconf])
192AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
193AM_MISSING_PROG([AUTOHEADER], [autoheader])
194AM_MISSING_PROG([MAKEINFO], [makeinfo])
195AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
196AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
197AC_REQUIRE([AC_PROG_MKDIR_P])dnl
198# For better backward compatibility.  To be removed once Automake 1.9.x
199# dies out for good.  For more background, see:
200# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
201# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
202AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
203# We need awk for the "check" target (and possibly the TAP driver).  The
204# system "awk" is bad on some platforms.
205AC_REQUIRE([AC_PROG_AWK])dnl
206AC_REQUIRE([AC_PROG_MAKE_SET])dnl
207AC_REQUIRE([AM_SET_LEADING_DOT])dnl
208_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
209	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
210			     [_AM_PROG_TAR([v7])])])
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212[AC_PROVIDE_IFELSE([AC_PROG_CC],
213		  [_AM_DEPENDENCIES([CC])],
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216AC_PROVIDE_IFELSE([AC_PROG_CXX],
217		  [_AM_DEPENDENCIES([CXX])],
218		  [m4_define([AC_PROG_CXX],
219			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
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224AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
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226		  [m4_define([AC_PROG_OBJCXX],
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228])
229AC_REQUIRE([AM_SILENT_RULES])dnl
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231dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
232dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
233AC_CONFIG_COMMANDS_PRE(dnl
234[m4_provide_if([_AM_COMPILER_EXEEXT],
235  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
236
237# POSIX will say in a future version that running "rm -f" with no argument
238# is OK; and we want to be able to make that assumption in our Makefile
239# recipes.  So use an aggressive probe to check that the usage we want is
240# actually supported "in the wild" to an acceptable degree.
241# See automake bug#10828.
242# To make any issue more visible, cause the running configure to be aborted
243# by default if the 'rm' program in use doesn't match our expectations; the
244# user can still override this though.
245if rm -f && rm -fr && rm -rf; then : OK; else
246  cat >&2 <<'END'
247Oops!
248
249Your 'rm' program seems unable to run without file operands specified
250on the command line, even when the '-f' option is present.  This is contrary
251to the behaviour of most rm programs out there, and not conforming with
252the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
253
254Please tell bug-automake@gnu.org about your system, including the value
255of your $PATH and any error possibly output before this message.  This
256can help us improve future automake versions.
257
258END
259  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
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261    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
262    echo >&2
263  else
264    cat >&2 <<'END'
265Aborting the configuration process, to ensure you take notice of the issue.
266
267You can download and install GNU coreutils to get an 'rm' implementation
268that behaves properly: <https://www.gnu.org/software/coreutils/>.
269
270If you want to complete the configuration process using your problematic
271'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
272to "yes", and re-run configure.
273
274END
275    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
276  fi
277fi
278dnl The trailing newline in this macro's definition is deliberate, for
279dnl backward compatibility and to allow trailing 'dnl'-style comments
280dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
281])
282
283dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
284dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
285dnl mangled by Autoconf and run in a shell conditional statement.
286m4_define([_AC_COMPILER_EXEEXT],
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288
289# When config.status generates a header, we must update the stamp-h file.
290# This file resides in the same directory as the config header
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292
293# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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295# our stamp files there.
296AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
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298_am_arg=$1
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303      break ;;
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306  esac
307done
308echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
309
310# Copyright (C) 2001-2020 Free Software Foundation, Inc.
311#
312# This file is free software; the Free Software Foundation
313# gives unlimited permission to copy and/or distribute it,
314# with or without modifications, as long as this notice is preserved.
315
316# AM_PROG_INSTALL_SH
317# ------------------
318# Define $install_sh.
319AC_DEFUN([AM_PROG_INSTALL_SH],
320[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
321if test x"${install_sh+set}" != xset; then
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323  *\ * | *\	*)
324    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
325  *)
326    install_sh="\${SHELL} $am_aux_dir/install-sh"
327  esac
328fi
329AC_SUBST([install_sh])])
330
331# Copyright (C) 2003-2020 Free Software Foundation, Inc.
332#
333# This file is free software; the Free Software Foundation
334# gives unlimited permission to copy and/or distribute it,
335# with or without modifications, as long as this notice is preserved.
336
337# Check whether the underlying file-system supports filenames
338# with a leading dot.  For instance MS-DOS doesn't.
339AC_DEFUN([AM_SET_LEADING_DOT],
340[rm -rf .tst 2>/dev/null
341mkdir .tst 2>/dev/null
342if test -d .tst; then
343  am__leading_dot=.
344else
345  am__leading_dot=_
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347rmdir .tst 2>/dev/null
348AC_SUBST([am__leading_dot])])
349
350# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
351
352# Copyright (C) 1997-2020 Free Software Foundation, Inc.
353#
354# This file is free software; the Free Software Foundation
355# gives unlimited permission to copy and/or distribute it,
356# with or without modifications, as long as this notice is preserved.
357
358# AM_MISSING_PROG(NAME, PROGRAM)
359# ------------------------------
360AC_DEFUN([AM_MISSING_PROG],
361[AC_REQUIRE([AM_MISSING_HAS_RUN])
362$1=${$1-"${am_missing_run}$2"}
363AC_SUBST($1)])
364
365# AM_MISSING_HAS_RUN
366# ------------------
367# Define MISSING if not defined so far and test if it is modern enough.
368# If it is, set am_missing_run to use it, otherwise, to nothing.
369AC_DEFUN([AM_MISSING_HAS_RUN],
370[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
371AC_REQUIRE_AUX_FILE([missing])dnl
372if test x"${MISSING+set}" != xset; then
373  MISSING="\${SHELL} '$am_aux_dir/missing'"
374fi
375# Use eval to expand $SHELL
376if eval "$MISSING --is-lightweight"; then
377  am_missing_run="$MISSING "
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379  am_missing_run=
380  AC_MSG_WARN(['missing' script is too old or missing])
381fi
382])
383
384# Helper functions for option handling.                     -*- Autoconf -*-
385
386# Copyright (C) 2001-2020 Free Software Foundation, Inc.
387#
388# This file is free software; the Free Software Foundation
389# gives unlimited permission to copy and/or distribute it,
390# with or without modifications, as long as this notice is preserved.
391
392# _AM_MANGLE_OPTION(NAME)
393# -----------------------
394AC_DEFUN([_AM_MANGLE_OPTION],
395[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
396
397# _AM_SET_OPTION(NAME)
398# --------------------
399# Set option NAME.  Presently that only means defining a flag for this option.
400AC_DEFUN([_AM_SET_OPTION],
401[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
402
403# _AM_SET_OPTIONS(OPTIONS)
404# ------------------------
405# OPTIONS is a space-separated list of Automake options.
406AC_DEFUN([_AM_SET_OPTIONS],
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408
409# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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412AC_DEFUN([_AM_IF_OPTION],
413[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
414
415# Check to make sure that the build environment is sane.    -*- Autoconf -*-
416
417# Copyright (C) 1996-2020 Free Software Foundation, Inc.
418#
419# This file is free software; the Free Software Foundation
420# gives unlimited permission to copy and/or distribute it,
421# with or without modifications, as long as this notice is preserved.
422
423# AM_SANITY_CHECK
424# ---------------
425AC_DEFUN([AM_SANITY_CHECK],
426[AC_MSG_CHECKING([whether build environment is sane])
427# Reject unsafe characters in $srcdir or the absolute working directory
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429am_lf='
430'
431case `pwd` in
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439
440# Do 'set' in a subshell so we don't clobber the current shell's
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443# (eg FreeBSD returns the mod time of the symlink's containing
444# directory).
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447   for am_try in 1 2; do
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456
457	# If neither matched, then we have a broken ls.  This can happen
458	# if, for instance, CONFIG_SHELL is bash and it inherits a
459	# broken ls alias from the environment.  This has actually
460	# happened.  Such a system could not be considered "sane".
461	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
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463     fi
464     if test "$[2]" = conftest.file || test $am_try -eq 2; then
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477   AC_MSG_ERROR([newly created file is older than distributed files!
478Check your system clock])
479fi
480AC_MSG_RESULT([yes])
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482# generated files are strictly newer.
483am_sleep_pid=
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485  ( sleep 1 ) &
486  am_sleep_pid=$!
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488AC_CONFIG_COMMANDS_PRE(
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492     wait $am_sleep_pid 2>/dev/null
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494   AC_MSG_RESULT([done])])
495rm -f conftest.file
496])
497
498# Copyright (C) 2009-2020 Free Software Foundation, Inc.
499#
500# This file is free software; the Free Software Foundation
501# gives unlimited permission to copy and/or distribute it,
502# with or without modifications, as long as this notice is preserved.
503
504# AM_SILENT_RULES([DEFAULT])
505# --------------------------
506# Enable less verbose build rules; with the default set to DEFAULT
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508AC_DEFUN([AM_SILENT_RULES],
509[AC_ARG_ENABLE([silent-rules], [dnl
510AS_HELP_STRING(
511  [--enable-silent-rules],
512  [less verbose build output (undo: "make V=1")])
513AS_HELP_STRING(
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519   no) AM_DEFAULT_VERBOSITY=1;;
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522dnl
523dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
524dnl do not support nested variable expansions.
525dnl See automake bug#9928 and bug#10237.
526am_make=${MAKE-make}
527AC_CACHE_CHECK([whether $am_make supports nested variables],
528   [am_cv_make_support_nested_variables],
529   [if AS_ECHO([['TRUE=$(BAR$(V))
530BAR0=false
531BAR1=true
532V=1
533am__doit:
534	@$(TRUE)
535.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
536  am_cv_make_support_nested_variables=yes
537else
538  am_cv_make_support_nested_variables=no
539fi])
540if test $am_cv_make_support_nested_variables = yes; then
541  dnl Using '$V' instead of '$(V)' breaks IRIX make.
542  AM_V='$(V)'
543  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
544else
545  AM_V=$AM_DEFAULT_VERBOSITY
546  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
547fi
548AC_SUBST([AM_V])dnl
549AM_SUBST_NOTMAKE([AM_V])dnl
550AC_SUBST([AM_DEFAULT_V])dnl
551AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
552AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
553AM_BACKSLASH='\'
554AC_SUBST([AM_BACKSLASH])dnl
555_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
556])
557
558# Copyright (C) 2001-2020 Free Software Foundation, Inc.
559#
560# This file is free software; the Free Software Foundation
561# gives unlimited permission to copy and/or distribute it,
562# with or without modifications, as long as this notice is preserved.
563
564# AM_PROG_INSTALL_STRIP
565# ---------------------
566# One issue with vendor 'install' (even GNU) is that you can't
567# specify the program used to strip binaries.  This is especially
568# annoying in cross-compiling environments, where the build's strip
569# is unlikely to handle the host's binaries.
570# Fortunately install-sh will honor a STRIPPROG variable, so we
571# always use install-sh in "make install-strip", and initialize
572# STRIPPROG with the value of the STRIP variable (set by the user).
573AC_DEFUN([AM_PROG_INSTALL_STRIP],
574[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
575# Installed binaries are usually stripped using 'strip' when the user
576# run "make install-strip".  However 'strip' might not be the right
577# tool to use in cross-compilation environments, therefore Automake
578# will honor the 'STRIP' environment variable to overrule this program.
579dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
580if test "$cross_compiling" != no; then
581  AC_CHECK_TOOL([STRIP], [strip], :)
582fi
583INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
584AC_SUBST([INSTALL_STRIP_PROGRAM])])
585
586# Copyright (C) 2006-2020 Free Software Foundation, Inc.
587#
588# This file is free software; the Free Software Foundation
589# gives unlimited permission to copy and/or distribute it,
590# with or without modifications, as long as this notice is preserved.
591
592# _AM_SUBST_NOTMAKE(VARIABLE)
593# ---------------------------
594# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
595# This macro is traced by Automake.
596AC_DEFUN([_AM_SUBST_NOTMAKE])
597
598# AM_SUBST_NOTMAKE(VARIABLE)
599# --------------------------
600# Public sister of _AM_SUBST_NOTMAKE.
601AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
602
603# Check how to create a tarball.                            -*- Autoconf -*-
604
605# Copyright (C) 2004-2020 Free Software Foundation, Inc.
606#
607# This file is free software; the Free Software Foundation
608# gives unlimited permission to copy and/or distribute it,
609# with or without modifications, as long as this notice is preserved.
610
611# _AM_PROG_TAR(FORMAT)
612# --------------------
613# Check how to create a tarball in format FORMAT.
614# FORMAT should be one of 'v7', 'ustar', or 'pax'.
615#
616# Substitute a variable $(am__tar) that is a command
617# writing to stdout a FORMAT-tarball containing the directory
618# $tardir.
619#     tardir=directory && $(am__tar) > result.tar
620#
621# Substitute a variable $(am__untar) that extract such
622# a tarball read from stdin.
623#     $(am__untar) < result.tar
624#
625AC_DEFUN([_AM_PROG_TAR],
626[# Always define AMTAR for backward compatibility.  Yes, it's still used
627# in the wild :-(  We should find a proper way to deprecate it ...
628AC_SUBST([AMTAR], ['$${TAR-tar}'])
629
630# We'll loop over all known methods to create a tar archive until one works.
631_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
632
633m4_if([$1], [v7],
634  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
635
636  [m4_case([$1],
637    [ustar],
638     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
639      # There is notably a 21 bits limit for the UID and the GID.  In fact,
640      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
641      # and bug#13588).
642      am_max_uid=2097151 # 2^21 - 1
643      am_max_gid=$am_max_uid
644      # The $UID and $GID variables are not portable, so we need to resort
645      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
646      # below are definitely unexpected, so allow the users to see them
647      # (that is, avoid stderr redirection).
648      am_uid=`id -u || echo unknown`
649      am_gid=`id -g || echo unknown`
650      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
651      if test $am_uid -le $am_max_uid; then
652         AC_MSG_RESULT([yes])
653      else
654         AC_MSG_RESULT([no])
655         _am_tools=none
656      fi
657      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
658      if test $am_gid -le $am_max_gid; then
659         AC_MSG_RESULT([yes])
660      else
661        AC_MSG_RESULT([no])
662        _am_tools=none
663      fi],
664
665  [pax],
666    [],
667
668  [m4_fatal([Unknown tar format])])
669
670  AC_MSG_CHECKING([how to create a $1 tar archive])
671
672  # Go ahead even if we have the value already cached.  We do so because we
673  # need to set the values for the 'am__tar' and 'am__untar' variables.
674  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
675
676  for _am_tool in $_am_tools; do
677    case $_am_tool in
678    gnutar)
679      for _am_tar in tar gnutar gtar; do
680        AM_RUN_LOG([$_am_tar --version]) && break
681      done
682      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
683      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
684      am__untar="$_am_tar -xf -"
685      ;;
686    plaintar)
687      # Must skip GNU tar: if it does not support --format= it doesn't create
688      # ustar tarball either.
689      (tar --version) >/dev/null 2>&1 && continue
690      am__tar='tar chf - "$$tardir"'
691      am__tar_='tar chf - "$tardir"'
692      am__untar='tar xf -'
693      ;;
694    pax)
695      am__tar='pax -L -x $1 -w "$$tardir"'
696      am__tar_='pax -L -x $1 -w "$tardir"'
697      am__untar='pax -r'
698      ;;
699    cpio)
700      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
701      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
702      am__untar='cpio -i -H $1 -d'
703      ;;
704    none)
705      am__tar=false
706      am__tar_=false
707      am__untar=false
708      ;;
709    esac
710
711    # If the value was cached, stop now.  We just wanted to have am__tar
712    # and am__untar set.
713    test -n "${am_cv_prog_tar_$1}" && break
714
715    # tar/untar a dummy directory, and stop if the command works.
716    rm -rf conftest.dir
717    mkdir conftest.dir
718    echo GrepMe > conftest.dir/file
719    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
720    rm -rf conftest.dir
721    if test -s conftest.tar; then
722      AM_RUN_LOG([$am__untar <conftest.tar])
723      AM_RUN_LOG([cat conftest.dir/file])
724      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
725    fi
726  done
727  rm -rf conftest.dir
728
729  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
730  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
731
732AC_SUBST([am__tar])
733AC_SUBST([am__untar])
734]) # _AM_PROG_TAR
735
736