1# generated automatically by aclocal 1.14.1 -*- Autoconf -*-
2
3# Copyright (C) 1996-2013 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($@)])])
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23# Copyright (C) 2002-2013 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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59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2013 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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89# start a VPATH build or use an absolute $srcdir.
90#
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111
112# AM_CONDITIONAL                                            -*- Autoconf -*-
113
114# Copyright (C) 1997-2013 Free Software Foundation, Inc.
115#
116# This file is free software; the Free Software Foundation
117# gives unlimited permission to copy and/or distribute it,
118# with or without modifications, as long as this notice is preserved.
119
120# AM_CONDITIONAL(NAME, SHELL-CONDITION)
121# -------------------------------------
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123AC_DEFUN([AM_CONDITIONAL],
124[AC_PREREQ([2.52])dnl
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144
145# Do all the work for Automake.                             -*- Autoconf -*-
146
147# Copyright (C) 1996-2013 Free Software Foundation, Inc.
148#
149# This file is free software; the Free Software Foundation
150# gives unlimited permission to copy and/or distribute it,
151# with or without modifications, as long as this notice is preserved.
152
153# This macro actually does too much.  Some checks are only needed if
154# your package does certain things.  But this isn't really a big deal.
155
156dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
157m4_define([AC_PROG_CC],
158m4_defn([AC_PROG_CC])
159[_AM_PROG_CC_C_O
160])
161
162# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
163# AM_INIT_AUTOMAKE([OPTIONS])
164# -----------------------------------------------
165# The call with PACKAGE and VERSION arguments is the old style
166# call (pre autoconf-2.50), which is being phased out.  PACKAGE
167# and VERSION should now be passed to AC_INIT and removed from
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206 AC_SUBST([PACKAGE], [$1])dnl
207 AC_SUBST([VERSION], [$2])],
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209dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
210m4_if(
211  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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213  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
214 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
215 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
216
217_AM_IF_OPTION([no-define],,
218[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
219 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
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221# Some tools Automake needs.
222AC_REQUIRE([AM_SANITY_CHECK])dnl
223AC_REQUIRE([AC_ARG_PROGRAM])dnl
224AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
225AM_MISSING_PROG([AUTOCONF], [autoconf])
226AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
227AM_MISSING_PROG([AUTOHEADER], [autoheader])
228AM_MISSING_PROG([MAKEINFO], [makeinfo])
229AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
230AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
231AC_REQUIRE([AC_PROG_MKDIR_P])dnl
232# For better backward compatibility.  To be removed once Automake 1.9.x
233# dies out for good.  For more background, see:
234# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
235# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
236AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
237# We need awk for the "check" target.  The system "awk" is bad on
238# some platforms.
239AC_REQUIRE([AC_PROG_AWK])dnl
240AC_REQUIRE([AC_PROG_MAKE_SET])dnl
241AC_REQUIRE([AM_SET_LEADING_DOT])dnl
242_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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244			     [_AM_PROG_TAR([v7])])])
245_AM_IF_OPTION([no-dependencies],,
246[AC_PROVIDE_IFELSE([AC_PROG_CC],
247		  [_AM_DEPENDENCIES([CC])],
248		  [m4_define([AC_PROG_CC],
249			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
250AC_PROVIDE_IFELSE([AC_PROG_CXX],
251		  [_AM_DEPENDENCIES([CXX])],
252		  [m4_define([AC_PROG_CXX],
253			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
254AC_PROVIDE_IFELSE([AC_PROG_OBJC],
255		  [_AM_DEPENDENCIES([OBJC])],
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260		  [m4_define([AC_PROG_OBJCXX],
261			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
262])
263AC_REQUIRE([AM_SILENT_RULES])dnl
264dnl The testsuite driver may need to know about EXEEXT, so add the
265dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
266dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
267AC_CONFIG_COMMANDS_PRE(dnl
268[m4_provide_if([_AM_COMPILER_EXEEXT],
269  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
270
271# POSIX will say in a future version that running "rm -f" with no argument
272# is OK; and we want to be able to make that assumption in our Makefile
273# recipes.  So use an aggressive probe to check that the usage we want is
274# actually supported "in the wild" to an acceptable degree.
275# See automake bug#10828.
276# To make any issue more visible, cause the running configure to be aborted
277# by default if the 'rm' program in use doesn't match our expectations; the
278# user can still override this though.
279if rm -f && rm -fr && rm -rf; then : OK; else
280  cat >&2 <<'END'
281Oops!
282
283Your 'rm' program seems unable to run without file operands specified
284on the command line, even when the '-f' option is present.  This is contrary
285to the behaviour of most rm programs out there, and not conforming with
286the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
287
288Please tell bug-automake@gnu.org about your system, including the value
289of your $PATH and any error possibly output before this message.  This
290can help us improve future automake versions.
291
292END
293  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
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295    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
296    echo >&2
297  else
298    cat >&2 <<'END'
299Aborting the configuration process, to ensure you take notice of the issue.
300
301You can download and install GNU coreutils to get an 'rm' implementation
302that behaves properly: <http://www.gnu.org/software/coreutils/>.
303
304If you want to complete the configuration process using your problematic
305'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
306to "yes", and re-run configure.
307
308END
309    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
310  fi
311fi])
312
313dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
314dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
315dnl mangled by Autoconf and run in a shell conditional statement.
316m4_define([_AC_COMPILER_EXEEXT],
317m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
318
319# When config.status generates a header, we must update the stamp-h file.
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322
323# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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332    $_am_arg | $_am_arg:* )
333      break ;;
334    * )
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336  esac
337done
338echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
339
340# Copyright (C) 2001-2013 Free Software Foundation, Inc.
341#
342# This file is free software; the Free Software Foundation
343# gives unlimited permission to copy and/or distribute it,
344# with or without modifications, as long as this notice is preserved.
345
346# AM_PROG_INSTALL_SH
347# ------------------
348# Define $install_sh.
349AC_DEFUN([AM_PROG_INSTALL_SH],
350[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
351if test x"${install_sh}" != xset; then
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353  *\ * | *\	*)
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355  *)
356    install_sh="\${SHELL} $am_aux_dir/install-sh"
357  esac
358fi
359AC_SUBST([install_sh])])
360
361# Copyright (C) 2003-2013 Free Software Foundation, Inc.
362#
363# This file is free software; the Free Software Foundation
364# gives unlimited permission to copy and/or distribute it,
365# with or without modifications, as long as this notice is preserved.
366
367# Check whether the underlying file-system supports filenames
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369AC_DEFUN([AM_SET_LEADING_DOT],
370[rm -rf .tst 2>/dev/null
371mkdir .tst 2>/dev/null
372if test -d .tst; then
373  am__leading_dot=.
374else
375  am__leading_dot=_
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377rmdir .tst 2>/dev/null
378AC_SUBST([am__leading_dot])])
379
380# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
381
382# Copyright (C) 1997-2013 Free Software Foundation, Inc.
383#
384# This file is free software; the Free Software Foundation
385# gives unlimited permission to copy and/or distribute it,
386# with or without modifications, as long as this notice is preserved.
387
388# AM_MISSING_PROG(NAME, PROGRAM)
389# ------------------------------
390AC_DEFUN([AM_MISSING_PROG],
391[AC_REQUIRE([AM_MISSING_HAS_RUN])
392$1=${$1-"${am_missing_run}$2"}
393AC_SUBST($1)])
394
395# AM_MISSING_HAS_RUN
396# ------------------
397# Define MISSING if not defined so far and test if it is modern enough.
398# If it is, set am_missing_run to use it, otherwise, to nothing.
399AC_DEFUN([AM_MISSING_HAS_RUN],
400[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
401AC_REQUIRE_AUX_FILE([missing])dnl
402if test x"${MISSING+set}" != xset; then
403  case $am_aux_dir in
404  *\ * | *\	*)
405    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
406  *)
407    MISSING="\${SHELL} $am_aux_dir/missing" ;;
408  esac
409fi
410# Use eval to expand $SHELL
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412  am_missing_run="$MISSING "
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415  AC_MSG_WARN(['missing' script is too old or missing])
416fi
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418
419# Helper functions for option handling.                     -*- Autoconf -*-
420
421# Copyright (C) 2001-2013 Free Software Foundation, Inc.
422#
423# This file is free software; the Free Software Foundation
424# gives unlimited permission to copy and/or distribute it,
425# with or without modifications, as long as this notice is preserved.
426
427# _AM_MANGLE_OPTION(NAME)
428# -----------------------
429AC_DEFUN([_AM_MANGLE_OPTION],
430[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
431
432# _AM_SET_OPTION(NAME)
433# --------------------
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435AC_DEFUN([_AM_SET_OPTION],
436[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
437
438# _AM_SET_OPTIONS(OPTIONS)
439# ------------------------
440# OPTIONS is a space-separated list of Automake options.
441AC_DEFUN([_AM_SET_OPTIONS],
442[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
443
444# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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447AC_DEFUN([_AM_IF_OPTION],
448[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
449
450# Check to make sure that the build environment is sane.    -*- Autoconf -*-
451
452# Copyright (C) 1996-2013 Free Software Foundation, Inc.
453#
454# This file is free software; the Free Software Foundation
455# gives unlimited permission to copy and/or distribute it,
456# with or without modifications, as long as this notice is preserved.
457
458# AM_SANITY_CHECK
459# ---------------
460AC_DEFUN([AM_SANITY_CHECK],
461[AC_MSG_CHECKING([whether build environment is sane])
462# Reject unsafe characters in $srcdir or the absolute working directory
463# name.  Accept space and tab only in the latter.
464am_lf='
465'
466case `pwd` in
467  *[[\\\"\#\$\&\'\`$am_lf]]*)
468    AC_MSG_ERROR([unsafe absolute working directory name]);;
469esac
470case $srcdir in
471  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
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474
475# Do 'set' in a subshell so we don't clobber the current shell's
476# arguments.  Must try -L first in case configure is actually a
477# symlink; some systems play weird games with the mod time of symlinks
478# (eg FreeBSD returns the mod time of the symlink's containing
479# directory).
480if (
481   am_has_slept=no
482   for am_try in 1 2; do
483     echo "timestamp, slept: $am_has_slept" > conftest.file
484     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
485     if test "$[*]" = "X"; then
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487	set X `ls -t "$srcdir/configure" conftest.file`
488     fi
489     if test "$[*]" != "X $srcdir/configure conftest.file" \
490	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
491
492	# If neither matched, then we have a broken ls.  This can happen
493	# if, for instance, CONFIG_SHELL is bash and it inherits a
494	# broken ls alias from the environment.  This has actually
495	# happened.  Such a system could not be considered "sane".
496	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
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498     fi
499     if test "$[2]" = conftest.file || test $am_try -eq 2; then
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505   done
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512   AC_MSG_ERROR([newly created file is older than distributed files!
513Check your system clock])
514fi
515AC_MSG_RESULT([yes])
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517# generated files are strictly newer.
518am_sleep_pid=
519if grep 'slept: no' conftest.file >/dev/null 2>&1; then
520  ( sleep 1 ) &
521  am_sleep_pid=$!
522fi
523AC_CONFIG_COMMANDS_PRE(
524  [AC_MSG_CHECKING([that generated files are newer than configure])
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526     # Hide warnings about reused PIDs.
527     wait $am_sleep_pid 2>/dev/null
528   fi
529   AC_MSG_RESULT([done])])
530rm -f conftest.file
531])
532
533# Copyright (C) 2009-2013 Free Software Foundation, Inc.
534#
535# This file is free software; the Free Software Foundation
536# gives unlimited permission to copy and/or distribute it,
537# with or without modifications, as long as this notice is preserved.
538
539# AM_SILENT_RULES([DEFAULT])
540# --------------------------
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544[AC_ARG_ENABLE([silent-rules], [dnl
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546  [--enable-silent-rules],
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548AS_HELP_STRING(
549  [--disable-silent-rules],
550  [verbose build output (undo: "make V=0")])dnl
551])
552case $enable_silent_rules in @%:@ (((
553  yes) AM_DEFAULT_VERBOSITY=0;;
554   no) AM_DEFAULT_VERBOSITY=1;;
555    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
556esac
557dnl
558dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
559dnl do not support nested variable expansions.
560dnl See automake bug#9928 and bug#10237.
561am_make=${MAKE-make}
562AC_CACHE_CHECK([whether $am_make supports nested variables],
563   [am_cv_make_support_nested_variables],
564   [if AS_ECHO([['TRUE=$(BAR$(V))
565BAR0=false
566BAR1=true
567V=1
568am__doit:
569	@$(TRUE)
570.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
571  am_cv_make_support_nested_variables=yes
572else
573  am_cv_make_support_nested_variables=no
574fi])
575if test $am_cv_make_support_nested_variables = yes; then
576  dnl Using '$V' instead of '$(V)' breaks IRIX make.
577  AM_V='$(V)'
578  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
579else
580  AM_V=$AM_DEFAULT_VERBOSITY
581  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
582fi
583AC_SUBST([AM_V])dnl
584AM_SUBST_NOTMAKE([AM_V])dnl
585AC_SUBST([AM_DEFAULT_V])dnl
586AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
587AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
588AM_BACKSLASH='\'
589AC_SUBST([AM_BACKSLASH])dnl
590_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
591])
592
593# Copyright (C) 2001-2013 Free Software Foundation, Inc.
594#
595# This file is free software; the Free Software Foundation
596# gives unlimited permission to copy and/or distribute it,
597# with or without modifications, as long as this notice is preserved.
598
599# AM_PROG_INSTALL_STRIP
600# ---------------------
601# One issue with vendor 'install' (even GNU) is that you can't
602# specify the program used to strip binaries.  This is especially
603# annoying in cross-compiling environments, where the build's strip
604# is unlikely to handle the host's binaries.
605# Fortunately install-sh will honor a STRIPPROG variable, so we
606# always use install-sh in "make install-strip", and initialize
607# STRIPPROG with the value of the STRIP variable (set by the user).
608AC_DEFUN([AM_PROG_INSTALL_STRIP],
609[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
610# Installed binaries are usually stripped using 'strip' when the user
611# run "make install-strip".  However 'strip' might not be the right
612# tool to use in cross-compilation environments, therefore Automake
613# will honor the 'STRIP' environment variable to overrule this program.
614dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
615if test "$cross_compiling" != no; then
616  AC_CHECK_TOOL([STRIP], [strip], :)
617fi
618INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
619AC_SUBST([INSTALL_STRIP_PROGRAM])])
620
621# Copyright (C) 2006-2013 Free Software Foundation, Inc.
622#
623# This file is free software; the Free Software Foundation
624# gives unlimited permission to copy and/or distribute it,
625# with or without modifications, as long as this notice is preserved.
626
627# _AM_SUBST_NOTMAKE(VARIABLE)
628# ---------------------------
629# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
630# This macro is traced by Automake.
631AC_DEFUN([_AM_SUBST_NOTMAKE])
632
633# AM_SUBST_NOTMAKE(VARIABLE)
634# --------------------------
635# Public sister of _AM_SUBST_NOTMAKE.
636AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
637
638# Check how to create a tarball.                            -*- Autoconf -*-
639
640# Copyright (C) 2004-2013 Free Software Foundation, Inc.
641#
642# This file is free software; the Free Software Foundation
643# gives unlimited permission to copy and/or distribute it,
644# with or without modifications, as long as this notice is preserved.
645
646# _AM_PROG_TAR(FORMAT)
647# --------------------
648# Check how to create a tarball in format FORMAT.
649# FORMAT should be one of 'v7', 'ustar', or 'pax'.
650#
651# Substitute a variable $(am__tar) that is a command
652# writing to stdout a FORMAT-tarball containing the directory
653# $tardir.
654#     tardir=directory && $(am__tar) > result.tar
655#
656# Substitute a variable $(am__untar) that extract such
657# a tarball read from stdin.
658#     $(am__untar) < result.tar
659#
660AC_DEFUN([_AM_PROG_TAR],
661[# Always define AMTAR for backward compatibility.  Yes, it's still used
662# in the wild :-(  We should find a proper way to deprecate it ...
663AC_SUBST([AMTAR], ['$${TAR-tar}'])
664
665# We'll loop over all known methods to create a tar archive until one works.
666_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
667
668m4_if([$1], [v7],
669  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
670
671  [m4_case([$1],
672    [ustar],
673     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
674      # There is notably a 21 bits limit for the UID and the GID.  In fact,
675      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
676      # and bug#13588).
677      am_max_uid=2097151 # 2^21 - 1
678      am_max_gid=$am_max_uid
679      # The $UID and $GID variables are not portable, so we need to resort
680      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
681      # below are definitely unexpected, so allow the users to see them
682      # (that is, avoid stderr redirection).
683      am_uid=`id -u || echo unknown`
684      am_gid=`id -g || echo unknown`
685      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
686      if test $am_uid -le $am_max_uid; then
687         AC_MSG_RESULT([yes])
688      else
689         AC_MSG_RESULT([no])
690         _am_tools=none
691      fi
692      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
693      if test $am_gid -le $am_max_gid; then
694         AC_MSG_RESULT([yes])
695      else
696        AC_MSG_RESULT([no])
697        _am_tools=none
698      fi],
699
700  [pax],
701    [],
702
703  [m4_fatal([Unknown tar format])])
704
705  AC_MSG_CHECKING([how to create a $1 tar archive])
706
707  # Go ahead even if we have the value already cached.  We do so because we
708  # need to set the values for the 'am__tar' and 'am__untar' variables.
709  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
710
711  for _am_tool in $_am_tools; do
712    case $_am_tool in
713    gnutar)
714      for _am_tar in tar gnutar gtar; do
715        AM_RUN_LOG([$_am_tar --version]) && break
716      done
717      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
718      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
719      am__untar="$_am_tar -xf -"
720      ;;
721    plaintar)
722      # Must skip GNU tar: if it does not support --format= it doesn't create
723      # ustar tarball either.
724      (tar --version) >/dev/null 2>&1 && continue
725      am__tar='tar chf - "$$tardir"'
726      am__tar_='tar chf - "$tardir"'
727      am__untar='tar xf -'
728      ;;
729    pax)
730      am__tar='pax -L -x $1 -w "$$tardir"'
731      am__tar_='pax -L -x $1 -w "$tardir"'
732      am__untar='pax -r'
733      ;;
734    cpio)
735      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
736      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
737      am__untar='cpio -i -H $1 -d'
738      ;;
739    none)
740      am__tar=false
741      am__tar_=false
742      am__untar=false
743      ;;
744    esac
745
746    # If the value was cached, stop now.  We just wanted to have am__tar
747    # and am__untar set.
748    test -n "${am_cv_prog_tar_$1}" && break
749
750    # tar/untar a dummy directory, and stop if the command works.
751    rm -rf conftest.dir
752    mkdir conftest.dir
753    echo GrepMe > conftest.dir/file
754    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
755    rm -rf conftest.dir
756    if test -s conftest.tar; then
757      AM_RUN_LOG([$am__untar <conftest.tar])
758      AM_RUN_LOG([cat conftest.dir/file])
759      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
760    fi
761  done
762  rm -rf conftest.dir
763
764  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
765  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
766
767AC_SUBST([am__tar])
768AC_SUBST([am__untar])
769]) # _AM_PROG_TAR
770
771