File indexing completed on 2024-12-22 04:04:15

 # generated automatically by aclocal 1.16.1 -*- Autoconf -*-
 
 # Copyright (C) 1996-2018 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],,
 [m4_warning([this file was generated for autoconf 2.69.
 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) 2002-2018 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='1.16'
 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], [1.16.1], [],
       [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([1.16.1])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) 2001-2018 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],
 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 # Expand $ac_aux_dir to an absolute path.
 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 ])
 
 # AM_CONDITIONAL                                            -*- Autoconf -*-
 
 # Copyright (C) 1997-2018 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_CONDITIONAL(NAME, SHELL-CONDITION)
 # -------------------------------------
 # Define a conditional.
 AC_DEFUN([AM_CONDITIONAL],
 [AC_PREREQ([2.52])dnl
  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 AC_SUBST([$1_TRUE])dnl
 AC_SUBST([$1_FALSE])dnl
 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 if $2; then
   $1_TRUE=
   $1_FALSE='#'
 else
   $1_TRUE='#'
   $1_FALSE=
 fi
 AC_CONFIG_COMMANDS_PRE(
 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
   AC_MSG_ERROR([[conditional "$1" was never defined.
 Usually this means the macro was only invoked conditionally.]])
 fi])])
 
 # Copyright (C) 1999-2018 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.
 
 
 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 # written in clear, in which case automake, when reading aclocal.m4,
 # will think it sees a *use*, and therefore will trigger all it's
 # C support machinery.  Also note that it means that autoscan, seeing
 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 
 
 # _AM_DEPENDENCIES(NAME)
 # ----------------------
 # See how the compiler implements dependency checking.
 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 # We try a few techniques and use that to set a single cache variable.
 #
 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 # dependency, and given that the user is not expected to run this macro,
 # just rely on AC_PROG_CC.
 AC_DEFUN([_AM_DEPENDENCIES],
 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 AC_REQUIRE([AM_DEP_TRACK])dnl
 
 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
                     [depcc="$$1"   am_compiler_list=])
 
 AC_CACHE_CHECK([dependency style of $depcc],
                [am_cv_$1_dependencies_compiler_type],
 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
   # We make a subdir and do the tests there.  Otherwise we can end up
   # making bogus files that we don't know about and never remove.  For
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named 'D' -- because '-MD' means "put the output
   # in D".
   rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
   cp "$am_depcomp" conftest.dir
   cd conftest.dir
   # We will build objects and dependencies in a subdirectory because
   # it helps to detect inapplicable dependency modes.  For instance
   # both Tru64's cc and ICC support -MD to output dependencies as a
   # side effect of compilation, but ICC will put the dependencies in
   # the current directory while Tru64 will put them in the object
   # directory.
   mkdir sub
 
   am_cv_$1_dependencies_compiler_type=none
   if test "$am_compiler_list" = ""; then
      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
   fi
   am__universal=false
   m4_case([$1], [CC],
     [case " $depcc " in #(
      *\ -arch\ *\ -arch\ *) am__universal=true ;;
      esac],
     [CXX],
     [case " $depcc " in #(
      *\ -arch\ *\ -arch\ *) am__universal=true ;;
      esac])
 
   for depmode in $am_compiler_list; do
     # Setup a source with many dependencies, because some compilers
     # like to wrap large dependency lists on column 80 (with \), and
     # we should not choose a depcomp mode which is confused by this.
     #
     # We need to recreate these files for each test, as the compiler may
     # overwrite some of them when testing with obscure command lines.
     # This happens at least with the AIX C compiler.
     : > sub/conftest.c
     for i in 1 2 3 4 5 6; do
       echo '#include "conftst'$i'.h"' >> sub/conftest.c
       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
       # Solaris 10 /bin/sh.
       echo '/* dummy */' > sub/conftst$i.h
     done
     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 
     # We check with '-c' and '-o' for the sake of the "dashmstdout"
     # mode.  It turns out that the SunPro C++ compiler does not properly
     # handle '-M -o', and we need to detect this.  Also, some Intel
     # versions had trouble with output in subdirs.
     am__obj=sub/conftest.${OBJEXT-o}
     am__minus_obj="-o $am__obj"
     case $depmode in
     gcc)
       # This depmode causes a compiler race in universal mode.
       test "$am__universal" = false || continue
       ;;
     nosideeffect)
       # After this tag, mechanisms are not by side-effect, so they'll
       # only be used when explicitly requested.
       if test "x$enable_dependency_tracking" = xyes; then
         continue
       else
         break
       fi
       ;;
     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok '-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
       am__obj=conftest.${OBJEXT-o}
       am__minus_obj=
       ;;
     none) break ;;
     esac
     if depmode=$depmode \
        source=sub/conftest.c object=$am__obj \
        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
          >/dev/null 2>conftest.err &&
        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
       # icc doesn't choke on unknown options, it will just issue warnings
       # or remarks (even with -Werror).  So we grep stderr for any message
       # that says an option was ignored or not supported.
       # When given -MP, icc 7.0 and 7.1 complain thusly:
       #   icc: Command line warning: ignoring option '-M'; no argument required
       # The diagnosis changed in icc 8.0:
       #   icc: Command line remark: option '-MP' not supported
       if (grep 'ignoring option' conftest.err ||
           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
         am_cv_$1_dependencies_compiler_type=$depmode
         break
       fi
     fi
   done
 
   cd ..
   rm -rf conftest.dir
 else
   am_cv_$1_dependencies_compiler_type=none
 fi
 ])
 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 AM_CONDITIONAL([am__fastdep$1], [
   test "x$enable_dependency_tracking" != xno \
   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 ])
 
 
 # AM_SET_DEPDIR
 # -------------
 # Choose a directory name for dependency files.
 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 AC_DEFUN([AM_SET_DEPDIR],
 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 ])
 
 
 # AM_DEP_TRACK
 # ------------
 AC_DEFUN([AM_DEP_TRACK],
 [AC_ARG_ENABLE([dependency-tracking], [dnl
 AS_HELP_STRING(
   [--enable-dependency-tracking],
   [do not reject slow dependency extractors])
 AS_HELP_STRING(
   [--disable-dependency-tracking],
   [speeds up one-time build])])
 if test "x$enable_dependency_tracking" != xno; then
   am_depcomp="$ac_aux_dir/depcomp"
   AMDEPBACKSLASH='\'
   am__nodep='_no'
 fi
 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 AC_SUBST([AMDEPBACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 AC_SUBST([am__nodep])dnl
 _AM_SUBST_NOTMAKE([am__nodep])dnl
 ])
 
 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 
 # Copyright (C) 1999-2018 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_OUTPUT_DEPENDENCY_COMMANDS
 # ------------------------------
 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 [{
   # Older Autoconf quotes --file arguments for eval, but not when files
   # are listed without --file.  Let's play safe and only enable the eval
   # if we detect the quoting.
   # TODO: see whether this extra hack can be removed once we start
   # requiring Autoconf 2.70 or later.
   AS_CASE([$CONFIG_FILES],
           [*\'*], [eval set x "$CONFIG_FILES"],
           [*], [set x $CONFIG_FILES])
   shift
   # Used to flag and report bootstrapping failures.
   am_rc=0
   for am_mf
   do
     # Strip MF so we end up with the name of the file.
     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
     # Check whether this is an Automake generated Makefile which includes
     # dependency-tracking related rules and includes.
     # Grep'ing the whole file directly is not great: AIX grep has a line
     # limit of 2048, but all sed's we know have understand at least 4000.
     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
       || continue
     am_dirpart=`AS_DIRNAME(["$am_mf"])`
     am_filepart=`AS_BASENAME(["$am_mf"])`
     AM_RUN_LOG([cd "$am_dirpart" \
       && sed -e '/# am--include-marker/d' "$am_filepart" \
         | $MAKE -f - am--depfiles]) || am_rc=$?
   done
   if test $am_rc -ne 0; then
     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
     for automatic dependency tracking.  Try re-running configure with the
     '--disable-dependency-tracking' option to at least be able to build
     the package (albeit without support for automatic dependency tracking).])
   fi
   AS_UNSET([am_dirpart])
   AS_UNSET([am_filepart])
   AS_UNSET([am_mf])
   AS_UNSET([am_rc])
   rm -f conftest-deps.mk
 }
 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 
 
 # AM_OUTPUT_DEPENDENCY_COMMANDS
 # -----------------------------
 # This macro should only be invoked once -- use via AC_REQUIRE.
 #
 # This code is only required when automatic dependency tracking is enabled.
 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
 # order to bootstrap the dependency handling code.
 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 [AC_CONFIG_COMMANDS([depfiles],
      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
 
 # Do all the work for Automake.                             -*- Autoconf -*-
 
 # Copyright (C) 1996-2018 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 macro actually does too much.  Some checks are only needed if
 # your package does certain things.  But this isn't really a big deal.
 
 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 m4_define([AC_PROG_CC],
 m4_defn([AC_PROG_CC])
 [_AM_PROG_CC_C_O
 ])
 
 # 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([2.65])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],
 [AC_DIAGNOSE([obsolete],
              [$0: two- and three-arguments forms are deprecated.])
 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], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
   [ok:ok],,
   [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([AC_PROG_MKDIR_P])dnl
 # For better backward compatibility.  To be removed once Automake 1.9.x
 # dies out for good.  For more background, see:
 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 # We need awk for the "check" target (and possibly the TAP driver).  The
 # system "awk" is bad on some platforms.
 AC_REQUIRE([AC_PROG_AWK])dnl
 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
                              [_AM_PROG_TAR([v7])])])
 _AM_IF_OPTION([no-dependencies],,
 [AC_PROVIDE_IFELSE([AC_PROG_CC],
                   [_AM_DEPENDENCIES([CC])],
                   [m4_define([AC_PROG_CC],
                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 AC_PROVIDE_IFELSE([AC_PROG_CXX],
                   [_AM_DEPENDENCIES([CXX])],
                   [m4_define([AC_PROG_CXX],
                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
                   [_AM_DEPENDENCIES([OBJC])],
                   [m4_define([AC_PROG_OBJC],
                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
                   [_AM_DEPENDENCIES([OBJCXX])],
                   [m4_define([AC_PROG_OBJCXX],
                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 ])
 AC_REQUIRE([AM_SILENT_RULES])dnl
 dnl The testsuite driver may need to know about EXEEXT, so add the
 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 AC_CONFIG_COMMANDS_PRE(dnl
 [m4_provide_if([_AM_COMPILER_EXEEXT],
   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 
 # POSIX will say in a future version that running "rm -f" with no argument
 # is OK; and we want to be able to make that assumption in our Makefile
 # recipes.  So use an aggressive probe to check that the usage we want is
 # actually supported "in the wild" to an acceptable degree.
 # See automake bug#10828.
 # To make any issue more visible, cause the running configure to be aborted
 # by default if the 'rm' program in use doesn't match our expectations; the
 # user can still override this though.
 if rm -f && rm -fr && rm -rf; then : OK; else
   cat >&2 <<'END'
 Oops!
 
 Your 'rm' program seems unable to run without file operands specified
 on the command line, even when the '-f' option is present.  This is contrary
 to the behaviour of most rm programs out there, and not conforming with
 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 
 Please tell bug-automake@gnu.org about your system, including the value
 of your $PATH and any error possibly output before this message.  This
 can help us improve future automake versions.
 
 END
   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
     echo 'Configuration will proceed anyway, since you have set the' >&2
     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
     echo >&2
   else
     cat >&2 <<'END'
 Aborting the configuration process, to ensure you take notice of the issue.
 
 You can download and install GNU coreutils to get an 'rm' implementation
 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 
 If you want to complete the configuration process using your problematic
 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 to "yes", and re-run configure.
 
 END
     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
   fi
 fi
 dnl The trailing newline in this macro's definition is deliberate, for
 dnl backward compatibility and to allow trailing 'dnl'-style comments
 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 ])
 
 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) 2001-2018 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+set}" != 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) 2003-2018 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.
 
 # 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])])
 
 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 
 # Copyright (C) 2001-2018 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_MAKE_INCLUDE()
 # -----------------
 # Check whether make has an 'include' directive that can support all
 # the idioms we need for our automatic dependency tracking code.
 AC_DEFUN([AM_MAKE_INCLUDE],
 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
 cat > confinc.mk << 'END'
 am__doit:
         @echo this is the am__doit target >confinc.out
 .PHONY: am__doit
 END
 am__include="#"
 am__quote=
 # BSD make does it like this.
 echo '.include "confinc.mk" # ignored' > confmf.BSD
 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 echo 'include confinc.mk # ignored' > confmf.GNU
 _am_result=no
 for s in GNU BSD; do
   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
       ['0:this is the am__doit target'],
       [AS_CASE([$s],
           [BSD], [am__include='.include' am__quote='"'],
           [am__include='include' am__quote=''])])
   if test "$am__include" != "#"; then
     _am_result="yes ($s style)"
     break
   fi
 done
 rm -f confinc.* confmf.*
 AC_MSG_RESULT([${_am_result}])
 AC_SUBST([am__include])])
 AC_SUBST([am__quote])])
 
 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 
 # Copyright (C) 1997-2018 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_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 is modern enough.
 # If it is, 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 --is-lightweight"; then
   am_missing_run="$MISSING "
 else
   am_missing_run=
   AC_MSG_WARN(['missing' script is too old or missing])
 fi
 ])
 
 # Helper functions for option handling.                     -*- Autoconf -*-
 
 # Copyright (C) 2001-2018 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_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])])
 
 # Copyright (C) 1999-2018 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_CC_C_O
 # ---------------
 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 # to automatically call this.
 AC_DEFUN([_AM_PROG_CC_C_O],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 AC_REQUIRE_AUX_FILE([compile])dnl
 AC_LANG_PUSH([C])dnl
 AC_CACHE_CHECK(
   [whether $CC understands -c and -o together],
   [am_cv_prog_cc_c_o],
   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
   # Make sure it works both with $CC and with simple cc.
   # Following AC_PROG_CC_C_O, we do the test twice because some
   # compilers refuse to overwrite an existing .o file with -o,
   # though they will create one.
   am_cv_prog_cc_c_o=yes
   for am_i in 1 2; do
     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
          && test -f conftest2.$ac_objext; then
       : OK
     else
       am_cv_prog_cc_c_o=no
       break
     fi
   done
   rm -f core conftest*
   unset am_i])
 if test "$am_cv_prog_cc_c_o" != yes; then
    # Losing compiler, so override with the script.
    # FIXME: It is wrong to rewrite CC.
    # But if we don't then we get into trouble of one sort or another.
    # A longer-term fix would be to have automake use am__CC in this case,
    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
    CC="$am_aux_dir/compile $CC"
 fi
 AC_LANG_POP([C])])
 
 # For backward compatibility.
 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 
 # Copyright (C) 2001-2018 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_RUN_LOG(COMMAND)
 # -------------------
 # Run COMMAND, save the exit status in ac_status, and log it.
 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 AC_DEFUN([AM_RUN_LOG],
 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
    ac_status=$?
    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
    (exit $ac_status); }])
 
 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 
 # Copyright (C) 1996-2018 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) 2009-2018 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) 2001-2018 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) 2006-2018 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) 2004-2018 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/libtool.m4])
 m4_include([m4/ltoptions.m4])
 m4_include([m4/ltsugar.m4])
 m4_include([m4/ltversion.m4])
 m4_include([m4/lt~obsolete.m4])