Subversion Repositories openrisc_2011-10-31

# generated automatically by aclocal 1.11 -*- Autoconf -*-

# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,

# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY, to the extent permitted by law; without

# even the implied warranty of MERCHANTABILITY or FITNESS FOR A

# PARTICULAR PURPOSE.

m4_ifndef([AC_AUTOCONF_VERSION],

  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl

m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.64],,

[m4_warning([this file was generated for autoconf 2.64.

You have another version of autoconf.  It may work, but is not guaranteed to.

If you have problems, you may need to regenerate the build system entirely.

To do so, use the procedure documented by the package, typically `autoreconf'.])])

# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# AM_AUTOMAKE_VERSION(VERSION)

# ----------------------------

# Automake X.Y traces this macro to ensure aclocal.m4 has been

# generated from the m4 files accompanying Automake X.Y.

# (This private macro should not be called outside this file.)

AC_DEFUN([AM_AUTOMAKE_VERSION],

[am__api_version='1.11'

dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to

dnl require some minimum version.  Point them to the right macro.

m4_if([$1], [1.11], [],

      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl

])

# _AM_AUTOCONF_VERSION(VERSION)

# -----------------------------

# aclocal traces this macro to find the Autoconf version.

# This is a private macro too.  Using m4_define simplifies

# the logic in aclocal, which can simply ignore this definition.

m4_define([_AM_AUTOCONF_VERSION], [])

# AM_SET_CURRENT_AUTOMAKE_VERSION

# -------------------------------

# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.

# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.

AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],

[AM_AUTOMAKE_VERSION([1.11])dnl

m4_ifndef([AC_AUTOCONF_VERSION],

  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl

_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])

# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-

# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets

# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to

# `$srcdir', `$srcdir/..', or `$srcdir/../..'.

#

# Of course, Automake must honor this variable whenever it calls a

# tool from the auxiliary directory.  The problem is that $srcdir (and

# therefore $ac_aux_dir as well) can be either absolute or relative,

# depending on how configure is run.  This is pretty annoying, since

# it makes $ac_aux_dir quite unusable in subdirectories: in the top

# source directory, any form will work fine, but in subdirectories a

# relative path needs to be adjusted first.

#

# $ac_aux_dir/missing

#    fails when called from a subdirectory if $ac_aux_dir is relative

# $top_srcdir/$ac_aux_dir/missing

#    fails if $ac_aux_dir is absolute,

#    fails when called from a subdirectory in a VPATH build with

#          a relative $ac_aux_dir

#

# The reason of the latter failure is that $top_srcdir and $ac_aux_dir

# are both prefixed by $srcdir.  In an in-source build this is usually

# harmless because $srcdir is `.', but things will broke when you

# start a VPATH build or use an absolute $srcdir.

#

# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,

# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:

#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`

# and then we would define $MISSING as

#   MISSING="\${SHELL} $am_aux_dir/missing"

# This will work as long as MISSING is not called from configure, because

# unfortunately $(top_srcdir) has no meaning in configure.

# However there are other variables, like CC, which are often used in

# configure, and could therefore not use this "fixed" $ac_aux_dir.

#

# Another solution, used here, is to always expand $ac_aux_dir to an

# absolute PATH.  The drawback is that using absolute paths prevent a

# configured tree to be moved without reconfiguration.

AC_DEFUN([AM_AUX_DIR_EXPAND],

[dnl Rely on autoconf to set up CDPATH properly.

AC_PREREQ([2.50])dnl

# expand $ac_aux_dir to an absolute path

am_aux_dir=`cd $ac_aux_dir && pwd`

])

# Do all the work for Automake.                             -*- Autoconf -*-

# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,

# 2005, 2006, 2008, 2009 Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 16

# This macro actually does too much.  Some checks are only needed if

# your package does certain things.  But this isn't really a big deal.

# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])

# AM_INIT_AUTOMAKE([OPTIONS])

# -----------------------------------------------

# The call with PACKAGE and VERSION arguments is the old style

# call (pre autoconf-2.50), which is being phased out.  PACKAGE

# and VERSION should now be passed to AC_INIT and removed from

# the call to AM_INIT_AUTOMAKE.

# We support both call styles for the transition.  After

# the next Automake release, Autoconf can make the AC_INIT

# arguments mandatory, and then we can depend on a new Autoconf

# release and drop the old call support.

AC_DEFUN([AM_INIT_AUTOMAKE],

[AC_PREREQ([2.62])dnl

dnl Autoconf wants to disallow AM_ names.  We explicitly allow

dnl the ones we care about.

m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl

AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl

AC_REQUIRE([AC_PROG_INSTALL])dnl

if test "`cd $srcdir && pwd`" != "`pwd`"; then

  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output

  # is not polluted with repeated "-I."

  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl

  # test to see if srcdir already configured

  if test -f $srcdir/config.status; then

    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])

  fi

fi

# test whether we have cygpath

if test -z "$CYGPATH_W"; then

  if (cygpath --version) >/dev/null 2>/dev/null; then

    CYGPATH_W='cygpath -w'

  else

    CYGPATH_W=echo

  fi

fi

AC_SUBST([CYGPATH_W])

# Define the identity of the package.

dnl Distinguish between old-style and new-style calls.

m4_ifval([$2],

[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl

 AC_SUBST([PACKAGE], [$1])dnl

 AC_SUBST([VERSION], [$2])],

[_AM_SET_OPTIONS([$1])dnl

dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.

m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,

  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl

 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl

 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl

_AM_IF_OPTION([no-define],,

[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])

 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl

# Some tools Automake needs.

AC_REQUIRE([AM_SANITY_CHECK])dnl

AC_REQUIRE([AC_ARG_PROGRAM])dnl

AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})

AM_MISSING_PROG(AUTOCONF, autoconf)

AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})

AM_MISSING_PROG(AUTOHEADER, autoheader)

AM_MISSING_PROG(MAKEINFO, makeinfo)

AC_REQUIRE([AM_PROG_INSTALL_SH])dnl

AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl

AC_REQUIRE([AM_PROG_MKDIR_P])dnl

# We need awk for the "check" target.  The system "awk" is bad on

# some platforms.

AC_REQUIRE([AC_PROG_AWK])dnl

AC_REQUIRE([AC_PROG_MAKE_SET])dnl

AC_REQUIRE([AM_SET_LEADING_DOT])dnl

_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],

              [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],

                             [_AM_PROG_TAR([v7])])])

_AM_IF_OPTION([no-dependencies],,

[AC_PROVIDE_IFELSE([AC_PROG_CC],

                  [_AM_DEPENDENCIES(CC)],

                  [define([AC_PROG_CC],

                          defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl

AC_PROVIDE_IFELSE([AC_PROG_CXX],

                  [_AM_DEPENDENCIES(CXX)],

                  [define([AC_PROG_CXX],

                          defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl

AC_PROVIDE_IFELSE([AC_PROG_OBJC],

                  [_AM_DEPENDENCIES(OBJC)],

                  [define([AC_PROG_OBJC],

                          defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl

])

_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl

dnl The `parallel-tests' driver may need to know about EXEEXT, so add the

dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro

dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.

AC_CONFIG_COMMANDS_PRE(dnl

[m4_provide_if([_AM_COMPILER_EXEEXT],

  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl

])

dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not

dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further

dnl mangled by Autoconf and run in a shell conditional statement.

m4_define([_AC_COMPILER_EXEEXT],

m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])

# When config.status generates a header, we must update the stamp-h file.

# This file resides in the same directory as the config header

# that is generated.  The stamp files are numbered to have different names.

# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the

# loop where config.status creates the headers, so we can generate

# our stamp files there.

AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],

[# Compute $1's index in $config_headers.

_am_arg=$1

_am_stamp_count=1

for _am_header in $config_headers :; do

  case $_am_header in

    $_am_arg | $_am_arg:* )

      break ;;

    * )

      _am_stamp_count=`expr $_am_stamp_count + 1` ;;

  esac

done

echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])

# Copyright (C) 2001, 2003, 2005, 2008  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_SH

# ------------------

# Define $install_sh.

AC_DEFUN([AM_PROG_INSTALL_SH],

[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl

if test x"${install_sh}" != xset; then

  case $am_aux_dir in

  *\ * | *\     *)

    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;

  *)

    install_sh="\${SHELL} $am_aux_dir/install-sh"

  esac

fi

AC_SUBST(install_sh)])

# Copyright (C) 2003, 2005  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 2

# Check whether the underlying file-system supports filenames

# with a leading dot.  For instance MS-DOS doesn't.

AC_DEFUN([AM_SET_LEADING_DOT],

[rm -rf .tst 2>/dev/null

mkdir .tst 2>/dev/null

if test -d .tst; then

  am__leading_dot=.

else

  am__leading_dot=_

fi

rmdir .tst 2>/dev/null

AC_SUBST([am__leading_dot])])

# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-

# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008

# Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 6

# AM_MISSING_PROG(NAME, PROGRAM)

# ------------------------------

AC_DEFUN([AM_MISSING_PROG],

[AC_REQUIRE([AM_MISSING_HAS_RUN])

$1=${$1-"${am_missing_run}$2"}

AC_SUBST($1)])

# AM_MISSING_HAS_RUN

# ------------------

# Define MISSING if not defined so far and test if it supports --run.

# If it does, set am_missing_run to use it, otherwise, to nothing.

AC_DEFUN([AM_MISSING_HAS_RUN],

[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl

AC_REQUIRE_AUX_FILE([missing])dnl

if test x"${MISSING+set}" != xset; then

  case $am_aux_dir in

  *\ * | *\     *)

    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;

  *)

    MISSING="\${SHELL} $am_aux_dir/missing" ;;

  esac

fi

# Use eval to expand $SHELL

if eval "$MISSING --run true"; then

  am_missing_run="$MISSING --run "

else

  am_missing_run=

  AC_MSG_WARN([`missing' script is too old or missing])

fi

])

# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# AM_PROG_MKDIR_P

# ---------------

# Check for `mkdir -p'.

AC_DEFUN([AM_PROG_MKDIR_P],

[AC_PREREQ([2.60])dnl

AC_REQUIRE([AC_PROG_MKDIR_P])dnl

dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,

dnl while keeping a definition of mkdir_p for backward compatibility.

dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.

dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of

dnl Makefile.ins that do not define MKDIR_P, so we do our own

dnl adjustment using top_builddir (which is defined more often than

dnl MKDIR_P).

AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl

case $mkdir_p in

  [[\\/$]]* | ?:[[\\/]]*) ;;

  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;

esac

])

# Helper functions for option handling.                     -*- Autoconf -*-

# Copyright (C) 2001, 2002, 2003, 2005, 2008  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 4

# _AM_MANGLE_OPTION(NAME)

# -----------------------

AC_DEFUN([_AM_MANGLE_OPTION],

[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])

# _AM_SET_OPTION(NAME)

# ------------------------------

# Set option NAME.  Presently that only means defining a flag for this option.

AC_DEFUN([_AM_SET_OPTION],

[m4_define(_AM_MANGLE_OPTION([$1]), 1)])

# _AM_SET_OPTIONS(OPTIONS)

# ----------------------------------

# OPTIONS is a space-separated list of Automake options.

AC_DEFUN([_AM_SET_OPTIONS],

[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])

# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])

# -------------------------------------------

# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.

AC_DEFUN([_AM_IF_OPTION],

[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])

# Check to make sure that the build environment is sane.    -*- Autoconf -*-

# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008

# Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 5

# AM_SANITY_CHECK

# ---------------

AC_DEFUN([AM_SANITY_CHECK],

[AC_MSG_CHECKING([whether build environment is sane])

# Just in case

sleep 1

echo timestamp > conftest.file

# Reject unsafe characters in $srcdir or the absolute working directory

# name.  Accept space and tab only in the latter.

am_lf='

'

case `pwd` in

  *[[\\\"\#\$\&\'\`$am_lf]]*)

    AC_MSG_ERROR([unsafe absolute working directory name]);;

esac

case $srcdir in

  *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)

    AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;

esac

# Do `set' in a subshell so we don't clobber the current shell's

# arguments.  Must try -L first in case configure is actually a

# symlink; some systems play weird games with the mod time of symlinks

# (eg FreeBSD returns the mod time of the symlink's containing

# directory).

if (

   set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`

   if test "$[*]" = "X"; then

      # -L didn't work.

      set X `ls -t "$srcdir/configure" conftest.file`

   fi

   rm -f conftest.file

   if test "$[*]" != "X $srcdir/configure conftest.file" \

      && test "$[*]" != "X conftest.file $srcdir/configure"; then

      # If neither matched, then we have a broken ls.  This can happen

      # if, for instance, CONFIG_SHELL is bash and it inherits a

      # broken ls alias from the environment.  This has actually

      # happened.  Such a system could not be considered "sane".

      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken

alias in your environment])

   fi

   test "$[2]" = conftest.file

   )

then

   # Ok.

   :

else

   AC_MSG_ERROR([newly created file is older than distributed files!

Check your system clock])

fi

AC_MSG_RESULT(yes)])

# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_STRIP

# ---------------------

# One issue with vendor `install' (even GNU) is that you can't

# specify the program used to strip binaries.  This is especially

# annoying in cross-compiling environments, where the build's strip

# is unlikely to handle the host's binaries.

# Fortunately install-sh will honor a STRIPPROG variable, so we

# always use install-sh in `make install-strip', and initialize

# STRIPPROG with the value of the STRIP variable (set by the user).

AC_DEFUN([AM_PROG_INSTALL_STRIP],

[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl

# Installed binaries are usually stripped using `strip' when the user

# run `make install-strip'.  However `strip' might not be the right

# tool to use in cross-compilation environments, therefore Automake

# will honor the `STRIP' environment variable to overrule this program.

dnl Don't test for $cross_compiling = yes, because it might be `maybe'.

if test "$cross_compiling" != no; then

  AC_CHECK_TOOL([STRIP], [strip], :)

fi

INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"

AC_SUBST([INSTALL_STRIP_PROGRAM])])

# Copyright (C) 2006, 2008  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 2

# _AM_SUBST_NOTMAKE(VARIABLE)

# ---------------------------

# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.

# This macro is traced by Automake.

AC_DEFUN([_AM_SUBST_NOTMAKE])

# AM_SUBST_NOTMAKE(VARIABLE)

# ---------------------------

# Public sister of _AM_SUBST_NOTMAKE.

AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])

# Check how to create a tarball.                            -*- Autoconf -*-

# Copyright (C) 2004, 2005  Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 2

# _AM_PROG_TAR(FORMAT)

# --------------------

# Check how to create a tarball in format FORMAT.

# FORMAT should be one of `v7', `ustar', or `pax'.

#

# Substitute a variable $(am__tar) that is a command

# writing to stdout a FORMAT-tarball containing the directory

# $tardir.

#     tardir=directory && $(am__tar) > result.tar

#

# Substitute a variable $(am__untar) that extract such

# a tarball read from stdin.

#     $(am__untar) < result.tar

AC_DEFUN([_AM_PROG_TAR],

[# Always define AMTAR for backward compatibility.

AM_MISSING_PROG([AMTAR], [tar])

m4_if([$1], [v7],

     [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],

     [m4_case([$1], [ustar],, [pax],,

              [m4_fatal([Unknown tar format])])

AC_MSG_CHECKING([how to create a $1 tar archive])

# Loop over all known methods to create a tar archive until one works.

_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'

_am_tools=${am_cv_prog_tar_$1-$_am_tools}

# Do not fold the above two line into one, because Tru64 sh and

# Solaris sh will not grok spaces in the rhs of `-'.

for _am_tool in $_am_tools

do

  case $_am_tool in

  gnutar)

    for _am_tar in tar gnutar gtar;

    do

      AM_RUN_LOG([$_am_tar --version]) && break

    done

    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'

    am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'

    am__untar="$_am_tar -xf -"

    ;;

  plaintar)

    # Must skip GNU tar: if it does not support --format= it doesn't create

    # ustar tarball either.

    (tar --version) >/dev/null 2>&1 && continue

    am__tar='tar chf - "$$tardir"'

    am__tar_='tar chf - "$tardir"'

    am__untar='tar xf -'

    ;;

  pax)

    am__tar='pax -L -x $1 -w "$$tardir"'

    am__tar_='pax -L -x $1 -w "$tardir"'

    am__untar='pax -r'

    ;;

  cpio)

    am__tar='find "$$tardir" -print | cpio -o -H $1 -L'

    am__tar_='find "$tardir" -print | cpio -o -H $1 -L'

    am__untar='cpio -i -H $1 -d'

    ;;

  none)

    am__tar=false

    am__tar_=false

    am__untar=false

    ;;

  esac

  # If the value was cached, stop now.  We just wanted to have am__tar

  # and am__untar set.

  test -n "${am_cv_prog_tar_$1}" && break

  # tar/untar a dummy directory, and stop if the command works

  rm -rf conftest.dir

  mkdir conftest.dir

  echo GrepMe > conftest.dir/file

  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])

  rm -rf conftest.dir

  if test -s conftest.tar; then

    AM_RUN_LOG([$am__untar <conftest.tar])

    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break

  fi

done

rm -rf conftest.dir

AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])

AC_MSG_RESULT([$am_cv_prog_tar_$1])])

AC_SUBST([am__tar])

AC_SUBST([am__untar])

]) # _AM_PROG_TAR