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    1 # generated automatically by aclocal 1.16.1 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2018 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 
   14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
   15 m4_ifndef([AC_AUTOCONF_VERSION],
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   22 
   23 # Copyright (C) 2002-2018 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) 2001-2018 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.
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  111 # AM_CONDITIONAL                                            -*- Autoconf -*-
  112 
  113 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
  114 #
  115 # This file is free software; the Free Software Foundation
  116 # gives unlimited permission to copy and/or distribute it,
  117 # with or without modifications, as long as this notice is preserved.
  118 
  119 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  120 # -------------------------------------
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  122 AC_DEFUN([AM_CONDITIONAL],
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  143 
  144 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  145 #
  146 # This file is free software; the Free Software Foundation
  147 # gives unlimited permission to copy and/or distribute it,
  148 # with or without modifications, as long as this notice is preserved.
  149 
  150 
  151 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  152 # written in clear, in which case automake, when reading aclocal.m4,
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  157 
  158 # _AM_DEPENDENCIES(NAME)
  159 # ----------------------
  160 # See how the compiler implements dependency checking.
  161 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
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  179       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
  180                     [depcc="$$1"   am_compiler_list=])
  181 
  182 AC_CACHE_CHECK([dependency style of $depcc],
  183                [am_cv_$1_dependencies_compiler_type],
  184 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  185   # We make a subdir and do the tests there.  Otherwise we can end up
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  188   # making a dummy file named 'D' -- because '-MD' means "put the output
  189   # in D".
  190   rm -rf conftest.dir
  191   mkdir conftest.dir
  192   # Copy depcomp to subdir because otherwise we won't find it if we're
  193   # using a relative directory.
  194   cp "$am_depcomp" conftest.dir
  195   cd conftest.dir
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  198   # both Tru64's cc and ICC support -MD to output dependencies as a
  199   # side effect of compilation, but ICC will put the dependencies in
  200   # the current directory while Tru64 will put them in the object
  201   # directory.
  202   mkdir sub
  203 
  204   am_cv_$1_dependencies_compiler_type=none
  205   if test "$am_compiler_list" = ""; then
  206      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
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  210     [case " $depcc " in #(
  211      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  212      esac],
  213     [CXX],
  214     [case " $depcc " in #(
  215      *\ -arch\ *\ -arch\ *) am__universal=true ;;
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  217 
  218   for depmode in $am_compiler_list; do
  219     # Setup a source with many dependencies, because some compilers
  220     # like to wrap large dependency lists on column 80 (with \), and
  221     # we should not choose a depcomp mode which is confused by this.
  222     #
  223     # We need to recreate these files for each test, as the compiler may
  224     # overwrite some of them when testing with obscure command lines.
  225     # This happens at least with the AIX C compiler.
  226     : > sub/conftest.c
  227     for i in 1 2 3 4 5 6; do
  228       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  229       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  230       # Solaris 10 /bin/sh.
  231       echo '/* dummy */' > sub/conftst$i.h
  232     done
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  234 
  235     # We check with '-c' and '-o' for the sake of the "dashmstdout"
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  245       ;;
  246     nosideeffect)
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  248       # only be used when explicitly requested.
  249       if test "x$enable_dependency_tracking" = xyes; then
  250 	continue
  251       else
  252 	break
  253       fi
  254       ;;
  255     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  256       # This compiler won't grok '-c -o', but also, the minuso test has
  257       # not run yet.  These depmodes are late enough in the game, and
  258       # so weak that their functioning should not be impacted.
  259       am__obj=conftest.${OBJEXT-o}
  260       am__minus_obj=
  261       ;;
  262     none) break ;;
  263     esac
  264     if depmode=$depmode \
  265        source=sub/conftest.c object=$am__obj \
  266        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  267        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  268          >/dev/null 2>conftest.err &&
  269        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  270        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  271        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  272        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  273       # icc doesn't choke on unknown options, it will just issue warnings
  274       # or remarks (even with -Werror).  So we grep stderr for any message
  275       # that says an option was ignored or not supported.
  276       # When given -MP, icc 7.0 and 7.1 complain thusly:
  277       #   icc: Command line warning: ignoring option '-M'; no argument required
  278       # The diagnosis changed in icc 8.0:
  279       #   icc: Command line remark: option '-MP' not supported
  280       if (grep 'ignoring option' conftest.err ||
  281           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  282         am_cv_$1_dependencies_compiler_type=$depmode
  283         break
  284       fi
  285     fi
  286   done
  287 
  288   cd ..
  289   rm -rf conftest.dir
  290 else
  291   am_cv_$1_dependencies_compiler_type=none
  292 fi
  293 ])
  294 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  295 AM_CONDITIONAL([am__fastdep$1], [
  296   test "x$enable_dependency_tracking" != xno \
  297   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  298 ])
  299 
  300 
  301 # AM_SET_DEPDIR
  302 # -------------
  303 # Choose a directory name for dependency files.
  304 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  305 AC_DEFUN([AM_SET_DEPDIR],
  306 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  307 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  308 ])
  309 
  310 
  311 # AM_DEP_TRACK
  312 # ------------
  313 AC_DEFUN([AM_DEP_TRACK],
  314 [AC_ARG_ENABLE([dependency-tracking], [dnl
  315 AS_HELP_STRING(
  316   [--enable-dependency-tracking],
  317   [do not reject slow dependency extractors])
  318 AS_HELP_STRING(
  319   [--disable-dependency-tracking],
  320   [speeds up one-time build])])
  321 if test "x$enable_dependency_tracking" != xno; then
  322   am_depcomp="$ac_aux_dir/depcomp"
  323   AMDEPBACKSLASH='\'
  324   am__nodep='_no'
  325 fi
  326 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  327 AC_SUBST([AMDEPBACKSLASH])dnl
  328 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  329 AC_SUBST([am__nodep])dnl
  330 _AM_SUBST_NOTMAKE([am__nodep])dnl
  331 ])
  332 
  333 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  334 
  335 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  336 #
  337 # This file is free software; the Free Software Foundation
  338 # gives unlimited permission to copy and/or distribute it,
  339 # with or without modifications, as long as this notice is preserved.
  340 
  341 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  342 # ------------------------------
  343 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  344 [{
  345   # Older Autoconf quotes --file arguments for eval, but not when files
  346   # are listed without --file.  Let's play safe and only enable the eval
  347   # if we detect the quoting.
  348   # TODO: see whether this extra hack can be removed once we start
  349   # requiring Autoconf 2.70 or later.
  350   AS_CASE([$CONFIG_FILES],
  351           [*\'*], [eval set x "$CONFIG_FILES"],
  352           [*], [set x $CONFIG_FILES])
  353   shift
  354   # Used to flag and report bootstrapping failures.
  355   am_rc=0
  356   for am_mf
  357   do
  358     # Strip MF so we end up with the name of the file.
  359     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  360     # Check whether this is an Automake generated Makefile which includes
  361     # dependency-tracking related rules and includes.
  362     # Grep'ing the whole file directly is not great: AIX grep has a line
  363     # limit of 2048, but all sed's we know have understand at least 4000.
  364     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  365       || continue
  366     am_dirpart=`AS_DIRNAME(["$am_mf"])`
  367     am_filepart=`AS_BASENAME(["$am_mf"])`
  368     AM_RUN_LOG([cd "$am_dirpart" \
  369       && sed -e '/# am--include-marker/d' "$am_filepart" \
  370         | $MAKE -f - am--depfiles]) || am_rc=$?
  371   done
  372   if test $am_rc -ne 0; then
  373     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  374     for automatic dependency tracking.  Try re-running configure with the
  375     '--disable-dependency-tracking' option to at least be able to build
  376     the package (albeit without support for automatic dependency tracking).])
  377   fi
  378   AS_UNSET([am_dirpart])
  379   AS_UNSET([am_filepart])
  380   AS_UNSET([am_mf])
  381   AS_UNSET([am_rc])
  382   rm -f conftest-deps.mk
  383 }
  384 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  385 
  386 
  387 # AM_OUTPUT_DEPENDENCY_COMMANDS
  388 # -----------------------------
  389 # This macro should only be invoked once -- use via AC_REQUIRE.
  390 #
  391 # This code is only required when automatic dependency tracking is enabled.
  392 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  393 # order to bootstrap the dependency handling code.
  394 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  395 [AC_CONFIG_COMMANDS([depfiles],
  396      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  397      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  398 
  399 # Do all the work for Automake.                             -*- Autoconf -*-
  400 
  401 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
  402 #
  403 # This file is free software; the Free Software Foundation
  404 # gives unlimited permission to copy and/or distribute it,
  405 # with or without modifications, as long as this notice is preserved.
  406 
  407 # This macro actually does too much.  Some checks are only needed if
  408 # your package does certain things.  But this isn't really a big deal.
  409 
  410 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  411 m4_define([AC_PROG_CC],
  412 m4_defn([AC_PROG_CC])
  413 [_AM_PROG_CC_C_O
  414 ])
  415 
  416 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  417 # AM_INIT_AUTOMAKE([OPTIONS])
  418 # -----------------------------------------------
  419 # The call with PACKAGE and VERSION arguments is the old style
  420 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  421 # and VERSION should now be passed to AC_INIT and removed from
  422 # the call to AM_INIT_AUTOMAKE.
  423 # We support both call styles for the transition.  After
  424 # the next Automake release, Autoconf can make the AC_INIT
  425 # arguments mandatory, and then we can depend on a new Autoconf
  426 # release and drop the old call support.
  427 AC_DEFUN([AM_INIT_AUTOMAKE],
  428 [AC_PREREQ([2.65])dnl
  429 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  430 dnl the ones we care about.
  431 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  432 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  433 AC_REQUIRE([AC_PROG_INSTALL])dnl
  434 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  435   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  436   # is not polluted with repeated "-I."
  437   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  438   # test to see if srcdir already configured
  439   if test -f $srcdir/config.status; then
  440     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  441   fi
  442 fi
  443 
  444 # test whether we have cygpath
  445 if test -z "$CYGPATH_W"; then
  446   if (cygpath --version) >/dev/null 2>/dev/null; then
  447     CYGPATH_W='cygpath -w'
  448   else
  449     CYGPATH_W=echo
  450   fi
  451 fi
  452 AC_SUBST([CYGPATH_W])
  453 
  454 # Define the identity of the package.
  455 dnl Distinguish between old-style and new-style calls.
  456 m4_ifval([$2],
  457 [AC_DIAGNOSE([obsolete],
  458              [$0: two- and three-arguments forms are deprecated.])
  459 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  460  AC_SUBST([PACKAGE], [$1])dnl
  461  AC_SUBST([VERSION], [$2])],
  462 [_AM_SET_OPTIONS([$1])dnl
  463 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  464 m4_if(
  465   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  466   [ok:ok],,
  467   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  468  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  469  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  470 
  471 _AM_IF_OPTION([no-define],,
  472 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  473  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  474 
  475 # Some tools Automake needs.
  476 AC_REQUIRE([AM_SANITY_CHECK])dnl
  477 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  478 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  479 AM_MISSING_PROG([AUTOCONF], [autoconf])
  480 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  481 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  482 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  483 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  484 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  485 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  486 # For better backward compatibility.  To be removed once Automake 1.9.x
  487 # dies out for good.  For more background, see:
  488 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  489 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  490 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  491 # We need awk for the "check" target (and possibly the TAP driver).  The
  492 # system "awk" is bad on some platforms.
  493 AC_REQUIRE([AC_PROG_AWK])dnl
  494 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  495 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  496 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  497 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  498 			     [_AM_PROG_TAR([v7])])])
  499 _AM_IF_OPTION([no-dependencies],,
  500 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  501 		  [_AM_DEPENDENCIES([CC])],
  502 		  [m4_define([AC_PROG_CC],
  503 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  504 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  505 		  [_AM_DEPENDENCIES([CXX])],
  506 		  [m4_define([AC_PROG_CXX],
  507 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  508 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  509 		  [_AM_DEPENDENCIES([OBJC])],
  510 		  [m4_define([AC_PROG_OBJC],
  511 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  512 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  513 		  [_AM_DEPENDENCIES([OBJCXX])],
  514 		  [m4_define([AC_PROG_OBJCXX],
  515 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  516 ])
  517 AC_REQUIRE([AM_SILENT_RULES])dnl
  518 dnl The testsuite driver may need to know about EXEEXT, so add the
  519 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  520 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  521 AC_CONFIG_COMMANDS_PRE(dnl
  522 [m4_provide_if([_AM_COMPILER_EXEEXT],
  523   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  524 
  525 # POSIX will say in a future version that running "rm -f" with no argument
  526 # is OK; and we want to be able to make that assumption in our Makefile
  527 # recipes.  So use an aggressive probe to check that the usage we want is
  528 # actually supported "in the wild" to an acceptable degree.
  529 # See automake bug#10828.
  530 # To make any issue more visible, cause the running configure to be aborted
  531 # by default if the 'rm' program in use doesn't match our expectations; the
  532 # user can still override this though.
  533 if rm -f && rm -fr && rm -rf; then : OK; else
  534   cat >&2 <<'END'
  535 Oops!
  536 
  537 Your 'rm' program seems unable to run without file operands specified
  538 on the command line, even when the '-f' option is present.  This is contrary
  539 to the behaviour of most rm programs out there, and not conforming with
  540 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  541 
  542 Please tell bug-automake@gnu.org about your system, including the value
  543 of your $PATH and any error possibly output before this message.  This
  544 can help us improve future automake versions.
  545 
  546 END
  547   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  548     echo 'Configuration will proceed anyway, since you have set the' >&2
  549     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  550     echo >&2
  551   else
  552     cat >&2 <<'END'
  553 Aborting the configuration process, to ensure you take notice of the issue.
  554 
  555 You can download and install GNU coreutils to get an 'rm' implementation
  556 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  557 
  558 If you want to complete the configuration process using your problematic
  559 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  560 to "yes", and re-run configure.
  561 
  562 END
  563     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  564   fi
  565 fi
  566 dnl The trailing newline in this macro's definition is deliberate, for
  567 dnl backward compatibility and to allow trailing 'dnl'-style comments
  568 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  569 ])
  570 
  571 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  572 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  573 dnl mangled by Autoconf and run in a shell conditional statement.
  574 m4_define([_AC_COMPILER_EXEEXT],
  575 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  576 
  577 # When config.status generates a header, we must update the stamp-h file.
  578 # This file resides in the same directory as the config header
  579 # that is generated.  The stamp files are numbered to have different names.
  580 
  581 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  582 # loop where config.status creates the headers, so we can generate
  583 # our stamp files there.
  584 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  585 [# Compute $1's index in $config_headers.
  586 _am_arg=$1
  587 _am_stamp_count=1
  588 for _am_header in $config_headers :; do
  589   case $_am_header in
  590     $_am_arg | $_am_arg:* )
  591       break ;;
  592     * )
  593       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  594   esac
  595 done
  596 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  597 
  598 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  599 #
  600 # This file is free software; the Free Software Foundation
  601 # gives unlimited permission to copy and/or distribute it,
  602 # with or without modifications, as long as this notice is preserved.
  603 
  604 # AM_PROG_INSTALL_SH
  605 # ------------------
  606 # Define $install_sh.
  607 AC_DEFUN([AM_PROG_INSTALL_SH],
  608 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  609 if test x"${install_sh+set}" != xset; then
  610   case $am_aux_dir in
  611   *\ * | *\	*)
  612     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  613   *)
  614     install_sh="\${SHELL} $am_aux_dir/install-sh"
  615   esac
  616 fi
  617 AC_SUBST([install_sh])])
  618 
  619 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
  620 #
  621 # This file is free software; the Free Software Foundation
  622 # gives unlimited permission to copy and/or distribute it,
  623 # with or without modifications, as long as this notice is preserved.
  624 
  625 # Check whether the underlying file-system supports filenames
  626 # with a leading dot.  For instance MS-DOS doesn't.
  627 AC_DEFUN([AM_SET_LEADING_DOT],
  628 [rm -rf .tst 2>/dev/null
  629 mkdir .tst 2>/dev/null
  630 if test -d .tst; then
  631   am__leading_dot=.
  632 else
  633   am__leading_dot=_
  634 fi
  635 rmdir .tst 2>/dev/null
  636 AC_SUBST([am__leading_dot])])
  637 
  638 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  639 
  640 # Copyright (C) 2001-2018 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_MAKE_INCLUDE()
  647 # -----------------
  648 # Check whether make has an 'include' directive that can support all
  649 # the idioms we need for our automatic dependency tracking code.
  650 AC_DEFUN([AM_MAKE_INCLUDE],
  651 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  652 cat > confinc.mk << 'END'
  653 am__doit:
  654 	@echo this is the am__doit target >confinc.out
  655 .PHONY: am__doit
  656 END
  657 am__include="#"
  658 am__quote=
  659 # BSD make does it like this.
  660 echo '.include "confinc.mk" # ignored' > confmf.BSD
  661 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  662 echo 'include confinc.mk # ignored' > confmf.GNU
  663 _am_result=no
  664 for s in GNU BSD; do
  665   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  666   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  667       ['0:this is the am__doit target'],
  668       [AS_CASE([$s],
  669           [BSD], [am__include='.include' am__quote='"'],
  670           [am__include='include' am__quote=''])])
  671   if test "$am__include" != "#"; then
  672     _am_result="yes ($s style)"
  673     break
  674   fi
  675 done
  676 rm -f confinc.* confmf.*
  677 AC_MSG_RESULT([${_am_result}])
  678 AC_SUBST([am__include])])
  679 AC_SUBST([am__quote])])
  680 
  681 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  682 
  683 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
  684 #
  685 # This file is free software; the Free Software Foundation
  686 # gives unlimited permission to copy and/or distribute it,
  687 # with or without modifications, as long as this notice is preserved.
  688 
  689 # AM_MISSING_PROG(NAME, PROGRAM)
  690 # ------------------------------
  691 AC_DEFUN([AM_MISSING_PROG],
  692 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  693 $1=${$1-"${am_missing_run}$2"}
  694 AC_SUBST($1)])
  695 
  696 # AM_MISSING_HAS_RUN
  697 # ------------------
  698 # Define MISSING if not defined so far and test if it is modern enough.
  699 # If it is, set am_missing_run to use it, otherwise, to nothing.
  700 AC_DEFUN([AM_MISSING_HAS_RUN],
  701 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  702 AC_REQUIRE_AUX_FILE([missing])dnl
  703 if test x"${MISSING+set}" != xset; then
  704   case $am_aux_dir in
  705   *\ * | *\	*)
  706     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  707   *)
  708     MISSING="\${SHELL} $am_aux_dir/missing" ;;
  709   esac
  710 fi
  711 # Use eval to expand $SHELL
  712 if eval "$MISSING --is-lightweight"; then
  713   am_missing_run="$MISSING "
  714 else
  715   am_missing_run=
  716   AC_MSG_WARN(['missing' script is too old or missing])
  717 fi
  718 ])
  719 
  720 #  -*- Autoconf -*-
  721 # Obsolete and "removed" macros, that must however still report explicit
  722 # error messages when used, to smooth transition.
  723 #
  724 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
  725 #
  726 # This file is free software; the Free Software Foundation
  727 # gives unlimited permission to copy and/or distribute it,
  728 # with or without modifications, as long as this notice is preserved.
  729 
  730 AC_DEFUN([AM_CONFIG_HEADER],
  731 [AC_DIAGNOSE([obsolete],
  732 ['$0': this macro is obsolete.
  733 You should use the 'AC][_CONFIG_HEADERS' macro instead.])dnl
  734 AC_CONFIG_HEADERS($@)])
  735 
  736 AC_DEFUN([AM_PROG_CC_STDC],
  737 [AC_PROG_CC
  738 am_cv_prog_cc_stdc=$ac_cv_prog_cc_stdc
  739 AC_DIAGNOSE([obsolete],
  740 ['$0': this macro is obsolete.
  741 You should simply use the 'AC][_PROG_CC' macro instead.
  742 Also, your code should no longer depend upon 'am_cv_prog_cc_stdc',
  743 but upon 'ac_cv_prog_cc_stdc'.])])
  744 
  745 AC_DEFUN([AM_C_PROTOTYPES],
  746          [AC_FATAL([automatic de-ANSI-fication support has been removed])])
  747 AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])
  748 
  749 # Helper functions for option handling.                     -*- Autoconf -*-
  750 
  751 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  752 #
  753 # This file is free software; the Free Software Foundation
  754 # gives unlimited permission to copy and/or distribute it,
  755 # with or without modifications, as long as this notice is preserved.
  756 
  757 # _AM_MANGLE_OPTION(NAME)
  758 # -----------------------
  759 AC_DEFUN([_AM_MANGLE_OPTION],
  760 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  761 
  762 # _AM_SET_OPTION(NAME)
  763 # --------------------
  764 # Set option NAME.  Presently that only means defining a flag for this option.
  765 AC_DEFUN([_AM_SET_OPTION],
  766 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  767 
  768 # _AM_SET_OPTIONS(OPTIONS)
  769 # ------------------------
  770 # OPTIONS is a space-separated list of Automake options.
  771 AC_DEFUN([_AM_SET_OPTIONS],
  772 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  773 
  774 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  775 # -------------------------------------------
  776 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  777 AC_DEFUN([_AM_IF_OPTION],
  778 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  779 
  780 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  781 #
  782 # This file is free software; the Free Software Foundation
  783 # gives unlimited permission to copy and/or distribute it,
  784 # with or without modifications, as long as this notice is preserved.
  785 
  786 # _AM_PROG_CC_C_O
  787 # ---------------
  788 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  789 # to automatically call this.
  790 AC_DEFUN([_AM_PROG_CC_C_O],
  791 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  792 AC_REQUIRE_AUX_FILE([compile])dnl
  793 AC_LANG_PUSH([C])dnl
  794 AC_CACHE_CHECK(
  795   [whether $CC understands -c and -o together],
  796   [am_cv_prog_cc_c_o],
  797   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  798   # Make sure it works both with $CC and with simple cc.
  799   # Following AC_PROG_CC_C_O, we do the test twice because some
  800   # compilers refuse to overwrite an existing .o file with -o,
  801   # though they will create one.
  802   am_cv_prog_cc_c_o=yes
  803   for am_i in 1 2; do
  804     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  805          && test -f conftest2.$ac_objext; then
  806       : OK
  807     else
  808       am_cv_prog_cc_c_o=no
  809       break
  810     fi
  811   done
  812   rm -f core conftest*
  813   unset am_i])
  814 if test "$am_cv_prog_cc_c_o" != yes; then
  815    # Losing compiler, so override with the script.
  816    # FIXME: It is wrong to rewrite CC.
  817    # But if we don't then we get into trouble of one sort or another.
  818    # A longer-term fix would be to have automake use am__CC in this case,
  819    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  820    CC="$am_aux_dir/compile $CC"
  821 fi
  822 AC_LANG_POP([C])])
  823 
  824 # For backward compatibility.
  825 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  826 
  827 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  828 #
  829 # This file is free software; the Free Software Foundation
  830 # gives unlimited permission to copy and/or distribute it,
  831 # with or without modifications, as long as this notice is preserved.
  832 
  833 # AM_RUN_LOG(COMMAND)
  834 # -------------------
  835 # Run COMMAND, save the exit status in ac_status, and log it.
  836 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  837 AC_DEFUN([AM_RUN_LOG],
  838 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  839    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  840    ac_status=$?
  841    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  842    (exit $ac_status); }])
  843 
  844 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  845 
  846 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
  847 #
  848 # This file is free software; the Free Software Foundation
  849 # gives unlimited permission to copy and/or distribute it,
  850 # with or without modifications, as long as this notice is preserved.
  851 
  852 # AM_SANITY_CHECK
  853 # ---------------
  854 AC_DEFUN([AM_SANITY_CHECK],
  855 [AC_MSG_CHECKING([whether build environment is sane])
  856 # Reject unsafe characters in $srcdir or the absolute working directory
  857 # name.  Accept space and tab only in the latter.
  858 am_lf='
  859 '
  860 case `pwd` in
  861   *[[\\\"\#\$\&\'\`$am_lf]]*)
  862     AC_MSG_ERROR([unsafe absolute working directory name]);;
  863 esac
  864 case $srcdir in
  865   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  866     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  867 esac
  868 
  869 # Do 'set' in a subshell so we don't clobber the current shell's
  870 # arguments.  Must try -L first in case configure is actually a
  871 # symlink; some systems play weird games with the mod time of symlinks
  872 # (eg FreeBSD returns the mod time of the symlink's containing
  873 # directory).
  874 if (
  875    am_has_slept=no
  876    for am_try in 1 2; do
  877      echo "timestamp, slept: $am_has_slept" > conftest.file
  878      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  879      if test "$[*]" = "X"; then
  880 	# -L didn't work.
  881 	set X `ls -t "$srcdir/configure" conftest.file`
  882      fi
  883      if test "$[*]" != "X $srcdir/configure conftest.file" \
  884 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  885 
  886 	# If neither matched, then we have a broken ls.  This can happen
  887 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  888 	# broken ls alias from the environment.  This has actually
  889 	# happened.  Such a system could not be considered "sane".
  890 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  891   alias in your environment])
  892      fi
  893      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  894        break
  895      fi
  896      # Just in case.
  897      sleep 1
  898      am_has_slept=yes
  899    done
  900    test "$[2]" = conftest.file
  901    )
  902 then
  903    # Ok.
  904    :
  905 else
  906    AC_MSG_ERROR([newly created file is older than distributed files!
  907 Check your system clock])
  908 fi
  909 AC_MSG_RESULT([yes])
  910 # If we didn't sleep, we still need to ensure time stamps of config.status and
  911 # generated files are strictly newer.
  912 am_sleep_pid=
  913 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  914   ( sleep 1 ) &
  915   am_sleep_pid=$!
  916 fi
  917 AC_CONFIG_COMMANDS_PRE(
  918   [AC_MSG_CHECKING([that generated files are newer than configure])
  919    if test -n "$am_sleep_pid"; then
  920      # Hide warnings about reused PIDs.
  921      wait $am_sleep_pid 2>/dev/null
  922    fi
  923    AC_MSG_RESULT([done])])
  924 rm -f conftest.file
  925 ])
  926 
  927 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
  928 #
  929 # This file is free software; the Free Software Foundation
  930 # gives unlimited permission to copy and/or distribute it,
  931 # with or without modifications, as long as this notice is preserved.
  932 
  933 # AM_SILENT_RULES([DEFAULT])
  934 # --------------------------
  935 # Enable less verbose build rules; with the default set to DEFAULT
  936 # ("yes" being less verbose, "no" or empty being verbose).
  937 AC_DEFUN([AM_SILENT_RULES],
  938 [AC_ARG_ENABLE([silent-rules], [dnl
  939 AS_HELP_STRING(
  940   [--enable-silent-rules],
  941   [less verbose build output (undo: "make V=1")])
  942 AS_HELP_STRING(
  943   [--disable-silent-rules],
  944   [verbose build output (undo: "make V=0")])dnl
  945 ])
  946 case $enable_silent_rules in @%:@ (((
  947   yes) AM_DEFAULT_VERBOSITY=0;;
  948    no) AM_DEFAULT_VERBOSITY=1;;
  949     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  950 esac
  951 dnl
  952 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  953 dnl do not support nested variable expansions.
  954 dnl See automake bug#9928 and bug#10237.
  955 am_make=${MAKE-make}
  956 AC_CACHE_CHECK([whether $am_make supports nested variables],
  957    [am_cv_make_support_nested_variables],
  958    [if AS_ECHO([['TRUE=$(BAR$(V))
  959 BAR0=false
  960 BAR1=true
  961 V=1
  962 am__doit:
  963 	@$(TRUE)
  964 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  965   am_cv_make_support_nested_variables=yes
  966 else
  967   am_cv_make_support_nested_variables=no
  968 fi])
  969 if test $am_cv_make_support_nested_variables = yes; then
  970   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  971   AM_V='$(V)'
  972   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  973 else
  974   AM_V=$AM_DEFAULT_VERBOSITY
  975   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  976 fi
  977 AC_SUBST([AM_V])dnl
  978 AM_SUBST_NOTMAKE([AM_V])dnl
  979 AC_SUBST([AM_DEFAULT_V])dnl
  980 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  981 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  982 AM_BACKSLASH='\'
  983 AC_SUBST([AM_BACKSLASH])dnl
  984 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  985 ])
  986 
  987 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  988 #
  989 # This file is free software; the Free Software Foundation
  990 # gives unlimited permission to copy and/or distribute it,
  991 # with or without modifications, as long as this notice is preserved.
  992 
  993 # AM_PROG_INSTALL_STRIP
  994 # ---------------------
  995 # One issue with vendor 'install' (even GNU) is that you can't
  996 # specify the program used to strip binaries.  This is especially
  997 # annoying in cross-compiling environments, where the build's strip
  998 # is unlikely to handle the host's binaries.
  999 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1000 # always use install-sh in "make install-strip", and initialize
 1001 # STRIPPROG with the value of the STRIP variable (set by the user).
 1002 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1003 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1004 # Installed binaries are usually stripped using 'strip' when the user
 1005 # run "make install-strip".  However 'strip' might not be the right
 1006 # tool to use in cross-compilation environments, therefore Automake
 1007 # will honor the 'STRIP' environment variable to overrule this program.
 1008 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1009 if test "$cross_compiling" != no; then
 1010   AC_CHECK_TOOL([STRIP], [strip], :)
 1011 fi
 1012 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1013 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1014 
 1015 # Copyright (C) 2006-2018 Free Software Foundation, Inc.
 1016 #
 1017 # This file is free software; the Free Software Foundation
 1018 # gives unlimited permission to copy and/or distribute it,
 1019 # with or without modifications, as long as this notice is preserved.
 1020 
 1021 # _AM_SUBST_NOTMAKE(VARIABLE)
 1022 # ---------------------------
 1023 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1024 # This macro is traced by Automake.
 1025 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1026 
 1027 # AM_SUBST_NOTMAKE(VARIABLE)
 1028 # --------------------------
 1029 # Public sister of _AM_SUBST_NOTMAKE.
 1030 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1031 
 1032 # Check how to create a tarball.                            -*- Autoconf -*-
 1033 
 1034 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
 1035 #
 1036 # This file is free software; the Free Software Foundation
 1037 # gives unlimited permission to copy and/or distribute it,
 1038 # with or without modifications, as long as this notice is preserved.
 1039 
 1040 # _AM_PROG_TAR(FORMAT)
 1041 # --------------------
 1042 # Check how to create a tarball in format FORMAT.
 1043 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1044 #
 1045 # Substitute a variable $(am__tar) that is a command
 1046 # writing to stdout a FORMAT-tarball containing the directory
 1047 # $tardir.
 1048 #     tardir=directory && $(am__tar) > result.tar
 1049 #
 1050 # Substitute a variable $(am__untar) that extract such
 1051 # a tarball read from stdin.
 1052 #     $(am__untar) < result.tar
 1053 #
 1054 AC_DEFUN([_AM_PROG_TAR],
 1055 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1056 # in the wild :-(  We should find a proper way to deprecate it ...
 1057 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1058 
 1059 # We'll loop over all known methods to create a tar archive until one works.
 1060 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1061 
 1062 m4_if([$1], [v7],
 1063   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1064 
 1065   [m4_case([$1],
 1066     [ustar],
 1067      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1068       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1069       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1070       # and bug#13588).
 1071       am_max_uid=2097151 # 2^21 - 1
 1072       am_max_gid=$am_max_uid
 1073       # The $UID and $GID variables are not portable, so we need to resort
 1074       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1075       # below are definitely unexpected, so allow the users to see them
 1076       # (that is, avoid stderr redirection).
 1077       am_uid=`id -u || echo unknown`
 1078       am_gid=`id -g || echo unknown`
 1079       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1080       if test $am_uid -le $am_max_uid; then
 1081          AC_MSG_RESULT([yes])
 1082       else
 1083          AC_MSG_RESULT([no])
 1084          _am_tools=none
 1085       fi
 1086       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1087       if test $am_gid -le $am_max_gid; then
 1088          AC_MSG_RESULT([yes])
 1089       else
 1090         AC_MSG_RESULT([no])
 1091         _am_tools=none
 1092       fi],
 1093 
 1094   [pax],
 1095     [],
 1096 
 1097   [m4_fatal([Unknown tar format])])
 1098 
 1099   AC_MSG_CHECKING([how to create a $1 tar archive])
 1100 
 1101   # Go ahead even if we have the value already cached.  We do so because we
 1102   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1103   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1104 
 1105   for _am_tool in $_am_tools; do
 1106     case $_am_tool in
 1107     gnutar)
 1108       for _am_tar in tar gnutar gtar; do
 1109         AM_RUN_LOG([$_am_tar --version]) && break
 1110       done
 1111       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1112       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1113       am__untar="$_am_tar -xf -"
 1114       ;;
 1115     plaintar)
 1116       # Must skip GNU tar: if it does not support --format= it doesn't create
 1117       # ustar tarball either.
 1118       (tar --version) >/dev/null 2>&1 && continue
 1119       am__tar='tar chf - "$$tardir"'
 1120       am__tar_='tar chf - "$tardir"'
 1121       am__untar='tar xf -'
 1122       ;;
 1123     pax)
 1124       am__tar='pax -L -x $1 -w "$$tardir"'
 1125       am__tar_='pax -L -x $1 -w "$tardir"'
 1126       am__untar='pax -r'
 1127       ;;
 1128     cpio)
 1129       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1130       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1131       am__untar='cpio -i -H $1 -d'
 1132       ;;
 1133     none)
 1134       am__tar=false
 1135       am__tar_=false
 1136       am__untar=false
 1137       ;;
 1138     esac
 1139 
 1140     # If the value was cached, stop now.  We just wanted to have am__tar
 1141     # and am__untar set.
 1142     test -n "${am_cv_prog_tar_$1}" && break
 1143 
 1144     # tar/untar a dummy directory, and stop if the command works.
 1145     rm -rf conftest.dir
 1146     mkdir conftest.dir
 1147     echo GrepMe > conftest.dir/file
 1148     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1149     rm -rf conftest.dir
 1150     if test -s conftest.tar; then
 1151       AM_RUN_LOG([$am__untar <conftest.tar])
 1152       AM_RUN_LOG([cat conftest.dir/file])
 1153       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1154     fi
 1155   done
 1156   rm -rf conftest.dir
 1157 
 1158   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1159   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1160 
 1161 AC_SUBST([am__tar])
 1162 AC_SUBST([am__untar])
 1163 ]) # _AM_PROG_TAR
 1164 
 1165 m4_include([m4/ax_cflags_warn_all.m4])
 1166 m4_include([m4/ax_check_compile_flag.m4])
 1167 m4_include([m4/ax_cxx_compile_stdcxx.m4])
 1168 m4_include([m4/ax_cxx_compile_stdcxx_11.m4])
 1169 m4_include([m4/libtool.m4])
 1170 m4_include([m4/ltoptions.m4])
 1171 m4_include([m4/ltsugar.m4])
 1172 m4_include([m4/ltversion.m4])
 1173 m4_include([m4/lt~obsolete.m4])
 1174 m4_include([m4/pkg.m4])