# generated automatically by aclocal 1.15.1 -*- Autoconf -*-

 # Copyright (C) 1996-2017 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_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])

 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl

 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
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 You have another version of autoconf.  It may work, but is not guaranteed to.
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 dnl pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
 dnl serial 11 (pkg-config-0.29.1)
 dnl
 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
 dnl
 dnl This program is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
 dnl the Free Software Foundation; either version 2 of the License, or
 dnl (at your option) any later version.
 dnl
 dnl This program is distributed in the hope that it will be useful, but
 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 dnl General Public License for more details.
 dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program; if not, write to the Free Software
 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 dnl 02111-1307, USA.
 dnl
 dnl As a special exception to the GNU General Public License, if you
 dnl distribute this file as part of a program that contains a
 dnl configuration script generated by Autoconf, you may include it under
 dnl the same distribution terms that you use for the rest of that
 dnl program.
 
 dnl PKG_PREREQ(MIN-VERSION)
 dnl -----------------------
 dnl Since: 0.29
 dnl
 dnl Verify that the version of the pkg-config macros are at least
 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
 dnl installed version of pkg-config, this checks the developer's version
 dnl of pkg.m4 when generating configure.
 dnl
 dnl To ensure that this macro is defined, also add:
 dnl m4_ifndef([PKG_PREREQ],
 dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
 dnl
 dnl See the "Since" comment for each macro you use to see what version
 dnl of the macros you require.
 m4_defun([PKG_PREREQ],
 [m4_define([PKG_MACROS_VERSION], [0.29.1])
 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 ])dnl PKG_PREREQ
 
 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
 dnl ----------------------------------
 dnl Since: 0.16
 dnl
 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
 dnl first found in the path. Checks that the version of pkg-config found
 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
 dnl used since that's the first version where most current features of
 dnl pkg-config existed.

 AC_DEFUN([PKG_PROG_PKG_CONFIG],
 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
 
 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
 fi
 if test -n "$PKG_CONFIG"; then
 	_pkg_min_version=m4_default([$1], [0.9.0])
 	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
 		AC_MSG_RESULT([yes])
 	else
 		AC_MSG_RESULT([no])
 		PKG_CONFIG=""
 	fi
 fi[]dnl

 ])dnl PKG_PROG_PKG_CONFIG

 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 dnl -------------------------------------------------------------------
 dnl Since: 0.18
 dnl
 dnl Check to see whether a particular set of modules exists. Similar to
 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
 dnl
 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 dnl only at the first occurence in configure.ac, so if the first place
 dnl it's called might be skipped (such as if it is within an "if", you
 dnl have to call PKG_CHECK_EXISTS manually

 AC_DEFUN([PKG_CHECK_EXISTS],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 if test -n "$PKG_CONFIG" && \
     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
   m4_default([$2], [:])
 m4_ifvaln([$3], [else
   $3])dnl
 fi])
 

 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
 dnl ---------------------------------------------
 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
 dnl pkg_failed based on the result.

 m4_define([_PKG_CONFIG],
 [if test -n "$$1"; then
     pkg_cv_[]$1="$$1"
  elif test -n "$PKG_CONFIG"; then
     PKG_CHECK_EXISTS([$3],
                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes ],
 		     [pkg_failed=yes])
  else
     pkg_failed=untried
 fi[]dnl

 ])dnl _PKG_CONFIG

 dnl _PKG_SHORT_ERRORS_SUPPORTED
 dnl ---------------------------
 dnl Internal check to see if pkg-config supports short errors.

 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
 else
         _pkg_short_errors_supported=no
 fi[]dnl

 ])dnl _PKG_SHORT_ERRORS_SUPPORTED

 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 dnl   [ACTION-IF-NOT-FOUND])
 dnl --------------------------------------------------------------
 dnl Since: 0.4.0
 dnl
 dnl Note that if there is a possibility the first call to
 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac

 AC_DEFUN([PKG_CHECK_MODULES],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 
 pkg_failed=no
 AC_MSG_CHECKING([for $1])
 
 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
 
 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
 and $1[]_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.])
 
 if test $pkg_failed = yes; then
    	AC_MSG_RESULT([no])
         _PKG_SHORT_ERRORS_SUPPORTED
         if test $_pkg_short_errors_supported = yes; then
 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
         else 
 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
 
 	m4_default([$4], [AC_MSG_ERROR(
 [Package requirements ($2) were not met:
 
 $$1_PKG_ERRORS
 
 Consider adjusting the PKG_CONFIG_PATH environment variable if you
 installed software in a non-standard prefix.
 
 _PKG_TEXT])[]dnl
         ])
 elif test $pkg_failed = untried; then
      	AC_MSG_RESULT([no])
 	m4_default([$4], [AC_MSG_FAILURE(
 [The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
 _PKG_TEXT
 

 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl

         ])
 else
 	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
 	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
         AC_MSG_RESULT([yes])
 	$3
 fi[]dnl

 ])dnl PKG_CHECK_MODULES
 
 
 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 dnl   [ACTION-IF-NOT-FOUND])
 dnl ---------------------------------------------------------------------
 dnl Since: 0.29
 dnl
 dnl Checks for existence of MODULES and gathers its build flags with
 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
 dnl and VARIABLE-PREFIX_LIBS from --libs.
 dnl
 dnl Note that if there is a possibility the first call to
 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
 dnl configure.ac.
 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 _save_PKG_CONFIG=$PKG_CONFIG
 PKG_CONFIG="$PKG_CONFIG --static"
 PKG_CHECK_MODULES($@)
 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
 ])dnl PKG_CHECK_MODULES_STATIC
 

 dnl PKG_INSTALLDIR([DIRECTORY])
 dnl -------------------------
 dnl Since: 0.27
 dnl
 dnl Substitutes the variable pkgconfigdir as the location where a module
 dnl should install pkg-config .pc files. By default the directory is
 dnl $libdir/pkgconfig, but the default can be changed by passing
 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
 dnl parameter.
 AC_DEFUN([PKG_INSTALLDIR],
 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
 m4_pushdef([pkg_description],
     [pkg-config installation directory @<:@]pkg_default[@:>@])
 AC_ARG_WITH([pkgconfigdir],
     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
     [with_pkgconfigdir=]pkg_default)
 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
 m4_popdef([pkg_default])
 m4_popdef([pkg_description])
 ])dnl PKG_INSTALLDIR
 
 
 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
 dnl --------------------------------
 dnl Since: 0.27
 dnl
 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
 dnl module should install arch-independent pkg-config .pc files. By
 dnl default the directory is $datadir/pkgconfig, but the default can be
 dnl changed by passing DIRECTORY. The user can override through the
 dnl --with-noarch-pkgconfigdir parameter.
 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
 m4_pushdef([pkg_description],
     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
 AC_ARG_WITH([noarch-pkgconfigdir],
     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
     [with_noarch_pkgconfigdir=]pkg_default)
 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
 m4_popdef([pkg_default])
 m4_popdef([pkg_description])
 ])dnl PKG_NOARCH_INSTALLDIR
 
 
 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 dnl -------------------------------------------
 dnl Since: 0.28
 dnl
 dnl Retrieves the value of the pkg-config variable for the given module.
 AC_DEFUN([PKG_CHECK_VAR],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
 
 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
 AS_VAR_COPY([$1], [pkg_cv_][$1])
 
 AS_VAR_IF([$1], [""], [$5], [$4])dnl
 ])dnl PKG_CHECK_VAR
 
 # Copyright (C) 2002-2017 Free Software Foundation, Inc.

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

 # Copyright (C) 1996-2017 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_SANITY_CHECK
 # ---------------
 AC_DEFUN([AM_SANITY_CHECK],
 [AC_MSG_CHECKING([whether build environment is sane])

 # 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 (

    am_has_slept=no
    for am_try in 1 2; do
      echo "timestamp, slept: $am_has_slept" > conftest.file
      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
      if test "$[*]" = "X"; then
 	# -L didn't work.
 	set X `ls -t "$srcdir/configure" conftest.file`
      fi
      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
      if test "$[2]" = conftest.file || test $am_try -eq 2; then
        break
      fi
      # Just in case.
      sleep 1
      am_has_slept=yes
    done

    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])
 # If we didn't sleep, we still need to ensure time stamps of config.status and
 # generated files are strictly newer.
 am_sleep_pid=
 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
   ( sleep 1 ) &
   am_sleep_pid=$!
 fi
 AC_CONFIG_COMMANDS_PRE(
   [AC_MSG_CHECKING([that generated files are newer than configure])
    if test -n "$am_sleep_pid"; then
      # Hide warnings about reused PIDs.
      wait $am_sleep_pid 2>/dev/null
    fi
    AC_MSG_RESULT([done])])
 rm -f conftest.file
 ])

 # Copyright (C) 2009-2017 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_SILENT_RULES([DEFAULT])
 # --------------------------
 # Enable less verbose build rules; with the default set to DEFAULT

 # ("yes" being less verbose, "no" or empty being verbose).

 AC_DEFUN([AM_SILENT_RULES],

 [AC_ARG_ENABLE([silent-rules], [dnl
 AS_HELP_STRING(
   [--enable-silent-rules],
   [less verbose build output (undo: "make V=1")])
 AS_HELP_STRING(
   [--disable-silent-rules],
   [verbose build output (undo: "make V=0")])dnl
 ])
 case $enable_silent_rules in @%:@ (((
   yes) AM_DEFAULT_VERBOSITY=0;;
    no) AM_DEFAULT_VERBOSITY=1;;
     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;

 esac

 dnl

 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)

 dnl do not support nested variable expansions.
 dnl See automake bug#9928 and bug#10237.
 am_make=${MAKE-make}
 AC_CACHE_CHECK([whether $am_make supports nested variables],
    [am_cv_make_support_nested_variables],
    [if AS_ECHO([['TRUE=$(BAR$(V))
 BAR0=false
 BAR1=true
 V=1
 am__doit:
 	@$(TRUE)
 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
   am_cv_make_support_nested_variables=yes
 else
   am_cv_make_support_nested_variables=no
 fi])
 if test $am_cv_make_support_nested_variables = yes; then

   dnl Using '$V' instead of '$(V)' breaks IRIX make.

   AM_V='$(V)'
   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 else
   AM_V=$AM_DEFAULT_VERBOSITY
   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 fi
 AC_SUBST([AM_V])dnl
 AM_SUBST_NOTMAKE([AM_V])dnl
 AC_SUBST([AM_DEFAULT_V])dnl
 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl

 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 AM_BACKSLASH='\'
 AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])
 

 # Copyright (C) 2001-2017 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) 2006-2017 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_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) 2004-2017 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_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.  Yes, it's still used
 # in the wild :-(  We should find a proper way to deprecate it ...
 AC_SUBST([AMTAR], ['$${TAR-tar}'])

 
 # We'll loop over all known methods to create a tar archive until one works.

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

 m4_if([$1], [v7],
   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 
   [m4_case([$1],
     [ustar],
      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
       # There is notably a 21 bits limit for the UID and the GID.  In fact,
       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
       # and bug#13588).
       am_max_uid=2097151 # 2^21 - 1
       am_max_gid=$am_max_uid
       # The $UID and $GID variables are not portable, so we need to resort
       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
       # below are definitely unexpected, so allow the users to see them
       # (that is, avoid stderr redirection).
       am_uid=`id -u || echo unknown`
       am_gid=`id -g || echo unknown`
       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
       if test $am_uid -le $am_max_uid; then
          AC_MSG_RESULT([yes])
       else
          AC_MSG_RESULT([no])
          _am_tools=none
       fi
       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
       if test $am_gid -le $am_max_gid; then
          AC_MSG_RESULT([yes])
       else
         AC_MSG_RESULT([no])
         _am_tools=none
       fi],
 
   [pax],
     [],
 
   [m4_fatal([Unknown tar format])])
 
   AC_MSG_CHECKING([how to create a $1 tar archive])
 
   # Go ahead even if we have the value already cached.  We do so because we
   # need to set the values for the 'am__tar' and 'am__untar' variables.
   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 
   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])
       AM_RUN_LOG([cat conftest.dir/file])
       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
 

 m4_include([m4/acinclude.m4])

 m4_include([m4/ax_check_uname_syscall.m4])

 m4_include([m4/fdpassing.m4])

 m4_include([m4/lib-ld.m4])

 m4_include([m4/lib-link.m4])
 m4_include([m4/lib-prefix.m4])

 m4_include([m4/lib-prelude.m4])

 m4_include([m4/libtool.m4])

 m4_include([m4/llvm.m4])

 m4_include([m4/ltargz.m4])

 m4_include([m4/ltdl.m4])

 m4_include([m4/ltoptions.m4])
 m4_include([m4/ltsugar.m4])
 m4_include([m4/ltversion.m4])
 m4_include([m4/lt~obsolete.m4])

 m4_include([m4/mmap_private.m4])

 m4_include([m4/resolv.m4])