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    1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2021 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) 2002-2021 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) 2001-2021 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) 1997-2021 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) 1999-2021 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,
  153 # will think it sees a *use*, and therefore will trigger all it's
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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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  182 AC_CACHE_CHECK([dependency style of $depcc],
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  196   # We will build objects and dependencies in a subdirectory because
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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
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  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$i.h
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  233     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
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  235     # We check with '-c' and '-o' for the sake of the "dashmstdout"
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  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$enable_dependency_tracking" != xno])
  327 AC_SUBST([AMDEPBACKSLASH])dnl
  328 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  329 AC_SUBST([am__nodep])dnl
  330 _AM_SUBST_NOTMAKE([am__nodep])dnl
  331 ])
  332 
  333 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  334 
  335 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
  336 #
  337 # This file is free software; the Free Software Foundation
  338 # gives unlimited permission to copy and/or distribute it,
  339 # with or without modifications, as long as this notice is preserved.
  340 
  341 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  342 # ------------------------------
  343 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  344 [{
  345   # Older Autoconf quotes --file arguments for eval, but not when files
  346   # are listed without --file.  Let's play safe and only enable the eval
  347   # if we detect the quoting.
  348   # TODO: see whether this extra hack can be removed once we start
  349   # requiring Autoconf 2.70 or later.
  350   AS_CASE([$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 $am_rc -ne 0; then
  373     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  374     for automatic dependency tracking.  If GNU make was not used, consider
  375     re-running the configure script with MAKE="gmake" (or whatever is
  376     necessary).  You can also try re-running configure with the
  377     '--disable-dependency-tracking' option to at least be able to build
  378     the package (albeit without support for automatic dependency tracking).])
  379   fi
  380   AS_UNSET([am_dirpart])
  381   AS_UNSET([am_filepart])
  382   AS_UNSET([am_mf])
  383   AS_UNSET([am_rc])
  384   rm -f conftest-deps.mk
  385 }
  386 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  387 
  388 
  389 # AM_OUTPUT_DEPENDENCY_COMMANDS
  390 # -----------------------------
  391 # This macro should only be invoked once -- use via AC_REQUIRE.
  392 #
  393 # This code is only required when automatic dependency tracking is enabled.
  394 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  395 # order to bootstrap the dependency handling code.
  396 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  397 [AC_CONFIG_COMMANDS([depfiles],
  398      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  399      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  400 
  401 # Do all the work for Automake.                             -*- Autoconf -*-
  402 
  403 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  404 #
  405 # This file is free software; the Free Software Foundation
  406 # gives unlimited permission to copy and/or distribute it,
  407 # with or without modifications, as long as this notice is preserved.
  408 
  409 # This macro actually does too much.  Some checks are only needed if
  410 # your package does certain things.  But this isn't really a big deal.
  411 
  412 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  413 m4_define([AC_PROG_CC],
  414 m4_defn([AC_PROG_CC])
  415 [_AM_PROG_CC_C_O
  416 ])
  417 
  418 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  419 # AM_INIT_AUTOMAKE([OPTIONS])
  420 # -----------------------------------------------
  421 # The call with PACKAGE and VERSION arguments is the old style
  422 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  423 # and VERSION should now be passed to AC_INIT and removed from
  424 # the call to AM_INIT_AUTOMAKE.
  425 # We support both call styles for the transition.  After
  426 # the next Automake release, Autoconf can make the AC_INIT
  427 # arguments mandatory, and then we can depend on a new Autoconf
  428 # release and drop the old call support.
  429 AC_DEFUN([AM_INIT_AUTOMAKE],
  430 [AC_PREREQ([2.65])dnl
  431 m4_ifdef([_$0_ALREADY_INIT],
  432   [m4_fatal([$0 expanded multiple times
  433 ]m4_defn([_$0_ALREADY_INIT]))],
  434   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
  435 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  436 dnl the ones we care about.
  437 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  438 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  439 AC_REQUIRE([AC_PROG_INSTALL])dnl
  440 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  441   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  442   # is not polluted with repeated "-I."
  443   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  444   # test to see if srcdir already configured
  445   if test -f $srcdir/config.status; then
  446     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  447   fi
  448 fi
  449 
  450 # test whether we have cygpath
  451 if test -z "$CYGPATH_W"; then
  452   if (cygpath --version) >/dev/null 2>/dev/null; then
  453     CYGPATH_W='cygpath -w'
  454   else
  455     CYGPATH_W=echo
  456   fi
  457 fi
  458 AC_SUBST([CYGPATH_W])
  459 
  460 # Define the identity of the package.
  461 dnl Distinguish between old-style and new-style calls.
  462 m4_ifval([$2],
  463 [AC_DIAGNOSE([obsolete],
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  465 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  466  AC_SUBST([PACKAGE], [$1])dnl
  467  AC_SUBST([VERSION], [$2])],
  468 [_AM_SET_OPTIONS([$1])dnl
  469 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  470 m4_if(
  471   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
  472   [ok:ok],,
  473   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  474  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  475  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  476 
  477 _AM_IF_OPTION([no-define],,
  478 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  479  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  480 
  481 # Some tools Automake needs.
  482 AC_REQUIRE([AM_SANITY_CHECK])dnl
  483 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  484 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  485 AM_MISSING_PROG([AUTOCONF], [autoconf])
  486 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  487 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  488 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  489 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  490 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  491 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  492 # For better backward compatibility.  To be removed once Automake 1.9.x
  493 # dies out for good.  For more background, see:
  494 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  495 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  496 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  497 # We need awk for the "check" target (and possibly the TAP driver).  The
  498 # system "awk" is bad on some platforms.
  499 AC_REQUIRE([AC_PROG_AWK])dnl
  500 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  501 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  502 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  503 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  504 			     [_AM_PROG_TAR([v7])])])
  505 _AM_IF_OPTION([no-dependencies],,
  506 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  507 		  [_AM_DEPENDENCIES([CC])],
  508 		  [m4_define([AC_PROG_CC],
  509 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  510 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  511 		  [_AM_DEPENDENCIES([CXX])],
  512 		  [m4_define([AC_PROG_CXX],
  513 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  514 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  515 		  [_AM_DEPENDENCIES([OBJC])],
  516 		  [m4_define([AC_PROG_OBJC],
  517 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  518 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  519 		  [_AM_DEPENDENCIES([OBJCXX])],
  520 		  [m4_define([AC_PROG_OBJCXX],
  521 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  522 ])
  523 # Variables for tags utilities; see am/tags.am
  524 if test -z "$CTAGS"; then
  525   CTAGS=ctags
  526 fi
  527 AC_SUBST([CTAGS])
  528 if test -z "$ETAGS"; then
  529   ETAGS=etags
  530 fi
  531 AC_SUBST([ETAGS])
  532 if test -z "$CSCOPE"; then
  533   CSCOPE=cscope
  534 fi
  535 AC_SUBST([CSCOPE])
  536 
  537 AC_REQUIRE([AM_SILENT_RULES])dnl
  538 dnl The testsuite driver may need to know about EXEEXT, so add the
  539 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  540 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  541 AC_CONFIG_COMMANDS_PRE(dnl
  542 [m4_provide_if([_AM_COMPILER_EXEEXT],
  543   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  544 
  545 # POSIX will say in a future version that running "rm -f" with no argument
  546 # is OK; and we want to be able to make that assumption in our Makefile
  547 # recipes.  So use an aggressive probe to check that the usage we want is
  548 # actually supported "in the wild" to an acceptable degree.
  549 # See automake bug#10828.
  550 # To make any issue more visible, cause the running configure to be aborted
  551 # by default if the 'rm' program in use doesn't match our expectations; the
  552 # user can still override this though.
  553 if rm -f && rm -fr && rm -rf; then : OK; else
  554   cat >&2 <<'END'
  555 Oops!
  556 
  557 Your 'rm' program seems unable to run without file operands specified
  558 on the command line, even when the '-f' option is present.  This is contrary
  559 to the behaviour of most rm programs out there, and not conforming with
  560 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  561 
  562 Please tell bug-automake@gnu.org about your system, including the value
  563 of your $PATH and any error possibly output before this message.  This
  564 can help us improve future automake versions.
  565 
  566 END
  567   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  568     echo 'Configuration will proceed anyway, since you have set the' >&2
  569     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  570     echo >&2
  571   else
  572     cat >&2 <<'END'
  573 Aborting the configuration process, to ensure you take notice of the issue.
  574 
  575 You can download and install GNU coreutils to get an 'rm' implementation
  576 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  577 
  578 If you want to complete the configuration process using your problematic
  579 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  580 to "yes", and re-run configure.
  581 
  582 END
  583     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  584   fi
  585 fi
  586 dnl The trailing newline in this macro's definition is deliberate, for
  587 dnl backward compatibility and to allow trailing 'dnl'-style comments
  588 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  589 ])
  590 
  591 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  592 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  593 dnl mangled by Autoconf and run in a shell conditional statement.
  594 m4_define([_AC_COMPILER_EXEEXT],
  595 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  596 
  597 # When config.status generates a header, we must update the stamp-h file.
  598 # This file resides in the same directory as the config header
  599 # that is generated.  The stamp files are numbered to have different names.
  600 
  601 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  602 # loop where config.status creates the headers, so we can generate
  603 # our stamp files there.
  604 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  605 [# Compute $1's index in $config_headers.
  606 _am_arg=$1
  607 _am_stamp_count=1
  608 for _am_header in $config_headers :; do
  609   case $_am_header in
  610     $_am_arg | $_am_arg:* )
  611       break ;;
  612     * )
  613       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  614   esac
  615 done
  616 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  617 
  618 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  619 #
  620 # This file is free software; the Free Software Foundation
  621 # gives unlimited permission to copy and/or distribute it,
  622 # with or without modifications, as long as this notice is preserved.
  623 
  624 # AM_PROG_INSTALL_SH
  625 # ------------------
  626 # Define $install_sh.
  627 AC_DEFUN([AM_PROG_INSTALL_SH],
  628 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  629 if test x"${install_sh+set}" != xset; then
  630   case $am_aux_dir in
  631   *\ * | *\	*)
  632     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  633   *)
  634     install_sh="\${SHELL} $am_aux_dir/install-sh"
  635   esac
  636 fi
  637 AC_SUBST([install_sh])])
  638 
  639 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
  640 #
  641 # This file is free software; the Free Software Foundation
  642 # gives unlimited permission to copy and/or distribute it,
  643 # with or without modifications, as long as this notice is preserved.
  644 
  645 # Check whether the underlying file-system supports filenames
  646 # with a leading dot.  For instance MS-DOS doesn't.
  647 AC_DEFUN([AM_SET_LEADING_DOT],
  648 [rm -rf .tst 2>/dev/null
  649 mkdir .tst 2>/dev/null
  650 if test -d .tst; then
  651   am__leading_dot=.
  652 else
  653   am__leading_dot=_
  654 fi
  655 rmdir .tst 2>/dev/null
  656 AC_SUBST([am__leading_dot])])
  657 
  658 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  659 
  660 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  661 #
  662 # This file is free software; the Free Software Foundation
  663 # gives unlimited permission to copy and/or distribute it,
  664 # with or without modifications, as long as this notice is preserved.
  665 
  666 # AM_MAKE_INCLUDE()
  667 # -----------------
  668 # Check whether make has an 'include' directive that can support all
  669 # the idioms we need for our automatic dependency tracking code.
  670 AC_DEFUN([AM_MAKE_INCLUDE],
  671 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  672 cat > confinc.mk << 'END'
  673 am__doit:
  674 	@echo this is the am__doit target >confinc.out
  675 .PHONY: am__doit
  676 END
  677 am__include="#"
  678 am__quote=
  679 # BSD make does it like this.
  680 echo '.include "confinc.mk" # ignored' > confmf.BSD
  681 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  682 echo 'include confinc.mk # ignored' > confmf.GNU
  683 _am_result=no
  684 for s in GNU BSD; do
  685   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  686   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  687       ['0:this is the am__doit target'],
  688       [AS_CASE([$s],
  689           [BSD], [am__include='.include' am__quote='"'],
  690           [am__include='include' am__quote=''])])
  691   if test "$am__include" != "#"; then
  692     _am_result="yes ($s style)"
  693     break
  694   fi
  695 done
  696 rm -f confinc.* confmf.*
  697 AC_MSG_RESULT([${_am_result}])
  698 AC_SUBST([am__include])])
  699 AC_SUBST([am__quote])])
  700 
  701 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  702 
  703 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
  704 #
  705 # This file is free software; the Free Software Foundation
  706 # gives unlimited permission to copy and/or distribute it,
  707 # with or without modifications, as long as this notice is preserved.
  708 
  709 # AM_MISSING_PROG(NAME, PROGRAM)
  710 # ------------------------------
  711 AC_DEFUN([AM_MISSING_PROG],
  712 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  713 $1=${$1-"${am_missing_run}$2"}
  714 AC_SUBST($1)])
  715 
  716 # AM_MISSING_HAS_RUN
  717 # ------------------
  718 # Define MISSING if not defined so far and test if it is modern enough.
  719 # If it is, set am_missing_run to use it, otherwise, to nothing.
  720 AC_DEFUN([AM_MISSING_HAS_RUN],
  721 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  722 AC_REQUIRE_AUX_FILE([missing])dnl
  723 if test x"${MISSING+set}" != xset; then
  724   MISSING="\${SHELL} '$am_aux_dir/missing'"
  725 fi
  726 # Use eval to expand $SHELL
  727 if eval "$MISSING --is-lightweight"; then
  728   am_missing_run="$MISSING "
  729 else
  730   am_missing_run=
  731   AC_MSG_WARN(['missing' script is too old or missing])
  732 fi
  733 ])
  734 
  735 # Helper functions for option handling.                     -*- Autoconf -*-
  736 
  737 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  738 #
  739 # This file is free software; the Free Software Foundation
  740 # gives unlimited permission to copy and/or distribute it,
  741 # with or without modifications, as long as this notice is preserved.
  742 
  743 # _AM_MANGLE_OPTION(NAME)
  744 # -----------------------
  745 AC_DEFUN([_AM_MANGLE_OPTION],
  746 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  747 
  748 # _AM_SET_OPTION(NAME)
  749 # --------------------
  750 # Set option NAME.  Presently that only means defining a flag for this option.
  751 AC_DEFUN([_AM_SET_OPTION],
  752 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  753 
  754 # _AM_SET_OPTIONS(OPTIONS)
  755 # ------------------------
  756 # OPTIONS is a space-separated list of Automake options.
  757 AC_DEFUN([_AM_SET_OPTIONS],
  758 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  759 
  760 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  761 # -------------------------------------------
  762 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  763 AC_DEFUN([_AM_IF_OPTION],
  764 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  765 
  766 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
  767 #
  768 # This file is free software; the Free Software Foundation
  769 # gives unlimited permission to copy and/or distribute it,
  770 # with or without modifications, as long as this notice is preserved.
  771 
  772 # _AM_PROG_CC_C_O
  773 # ---------------
  774 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  775 # to automatically call this.
  776 AC_DEFUN([_AM_PROG_CC_C_O],
  777 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  778 AC_REQUIRE_AUX_FILE([compile])dnl
  779 AC_LANG_PUSH([C])dnl
  780 AC_CACHE_CHECK(
  781   [whether $CC understands -c and -o together],
  782   [am_cv_prog_cc_c_o],
  783   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  784   # Make sure it works both with $CC and with simple cc.
  785   # Following AC_PROG_CC_C_O, we do the test twice because some
  786   # compilers refuse to overwrite an existing .o file with -o,
  787   # though they will create one.
  788   am_cv_prog_cc_c_o=yes
  789   for am_i in 1 2; do
  790     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  791          && test -f conftest2.$ac_objext; then
  792       : OK
  793     else
  794       am_cv_prog_cc_c_o=no
  795       break
  796     fi
  797   done
  798   rm -f core conftest*
  799   unset am_i])
  800 if test "$am_cv_prog_cc_c_o" != yes; then
  801    # Losing compiler, so override with the script.
  802    # FIXME: It is wrong to rewrite CC.
  803    # But if we don't then we get into trouble of one sort or another.
  804    # A longer-term fix would be to have automake use am__CC in this case,
  805    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  806    CC="$am_aux_dir/compile $CC"
  807 fi
  808 AC_LANG_POP([C])])
  809 
  810 # For backward compatibility.
  811 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  812 
  813 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  814 #
  815 # This file is free software; the Free Software Foundation
  816 # gives unlimited permission to copy and/or distribute it,
  817 # with or without modifications, as long as this notice is preserved.
  818 
  819 # AM_RUN_LOG(COMMAND)
  820 # -------------------
  821 # Run COMMAND, save the exit status in ac_status, and log it.
  822 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  823 AC_DEFUN([AM_RUN_LOG],
  824 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  825    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  826    ac_status=$?
  827    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  828    (exit $ac_status); }])
  829 
  830 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  831 
  832 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  833 #
  834 # This file is free software; the Free Software Foundation
  835 # gives unlimited permission to copy and/or distribute it,
  836 # with or without modifications, as long as this notice is preserved.
  837 
  838 # AM_SANITY_CHECK
  839 # ---------------
  840 AC_DEFUN([AM_SANITY_CHECK],
  841 [AC_MSG_CHECKING([whether build environment is sane])
  842 # Reject unsafe characters in $srcdir or the absolute working directory
  843 # name.  Accept space and tab only in the latter.
  844 am_lf='
  845 '
  846 case `pwd` in
  847   *[[\\\"\#\$\&\'\`$am_lf]]*)
  848     AC_MSG_ERROR([unsafe absolute working directory name]);;
  849 esac
  850 case $srcdir in
  851   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  852     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  853 esac
  854 
  855 # Do 'set' in a subshell so we don't clobber the current shell's
  856 # arguments.  Must try -L first in case configure is actually a
  857 # symlink; some systems play weird games with the mod time of symlinks
  858 # (eg FreeBSD returns the mod time of the symlink's containing
  859 # directory).
  860 if (
  861    am_has_slept=no
  862    for am_try in 1 2; do
  863      echo "timestamp, slept: $am_has_slept" > conftest.file
  864      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  865      if test "$[*]" = "X"; then
  866 	# -L didn't work.
  867 	set X `ls -t "$srcdir/configure" conftest.file`
  868      fi
  869      if test "$[*]" != "X $srcdir/configure conftest.file" \
  870 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  871 
  872 	# If neither matched, then we have a broken ls.  This can happen
  873 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  874 	# broken ls alias from the environment.  This has actually
  875 	# happened.  Such a system could not be considered "sane".
  876 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  877   alias in your environment])
  878      fi
  879      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  880        break
  881      fi
  882      # Just in case.
  883      sleep 1
  884      am_has_slept=yes
  885    done
  886    test "$[2]" = conftest.file
  887    )
  888 then
  889    # Ok.
  890    :
  891 else
  892    AC_MSG_ERROR([newly created file is older than distributed files!
  893 Check your system clock])
  894 fi
  895 AC_MSG_RESULT([yes])
  896 # If we didn't sleep, we still need to ensure time stamps of config.status and
  897 # generated files are strictly newer.
  898 am_sleep_pid=
  899 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  900   ( sleep 1 ) &
  901   am_sleep_pid=$!
  902 fi
  903 AC_CONFIG_COMMANDS_PRE(
  904   [AC_MSG_CHECKING([that generated files are newer than configure])
  905    if test -n "$am_sleep_pid"; then
  906      # Hide warnings about reused PIDs.
  907      wait $am_sleep_pid 2>/dev/null
  908    fi
  909    AC_MSG_RESULT([done])])
  910 rm -f conftest.file
  911 ])
  912 
  913 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
  914 #
  915 # This file is free software; the Free Software Foundation
  916 # gives unlimited permission to copy and/or distribute it,
  917 # with or without modifications, as long as this notice is preserved.
  918 
  919 # AM_SILENT_RULES([DEFAULT])
  920 # --------------------------
  921 # Enable less verbose build rules; with the default set to DEFAULT
  922 # ("yes" being less verbose, "no" or empty being verbose).
  923 AC_DEFUN([AM_SILENT_RULES],
  924 [AC_ARG_ENABLE([silent-rules], [dnl
  925 AS_HELP_STRING(
  926   [--enable-silent-rules],
  927   [less verbose build output (undo: "make V=1")])
  928 AS_HELP_STRING(
  929   [--disable-silent-rules],
  930   [verbose build output (undo: "make V=0")])dnl
  931 ])
  932 case $enable_silent_rules in @%:@ (((
  933   yes) AM_DEFAULT_VERBOSITY=0;;
  934    no) AM_DEFAULT_VERBOSITY=1;;
  935     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  936 esac
  937 dnl
  938 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  939 dnl do not support nested variable expansions.
  940 dnl See automake bug#9928 and bug#10237.
  941 am_make=${MAKE-make}
  942 AC_CACHE_CHECK([whether $am_make supports nested variables],
  943    [am_cv_make_support_nested_variables],
  944    [if AS_ECHO([['TRUE=$(BAR$(V))
  945 BAR0=false
  946 BAR1=true
  947 V=1
  948 am__doit:
  949 	@$(TRUE)
  950 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  951   am_cv_make_support_nested_variables=yes
  952 else
  953   am_cv_make_support_nested_variables=no
  954 fi])
  955 if test $am_cv_make_support_nested_variables = yes; then
  956   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  957   AM_V='$(V)'
  958   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  959 else
  960   AM_V=$AM_DEFAULT_VERBOSITY
  961   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  962 fi
  963 AC_SUBST([AM_V])dnl
  964 AM_SUBST_NOTMAKE([AM_V])dnl
  965 AC_SUBST([AM_DEFAULT_V])dnl
  966 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  967 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  968 AM_BACKSLASH='\'
  969 AC_SUBST([AM_BACKSLASH])dnl
  970 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  971 ])
  972 
  973 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  974 #
  975 # This file is free software; the Free Software Foundation
  976 # gives unlimited permission to copy and/or distribute it,
  977 # with or without modifications, as long as this notice is preserved.
  978 
  979 # AM_PROG_INSTALL_STRIP
  980 # ---------------------
  981 # One issue with vendor 'install' (even GNU) is that you can't
  982 # specify the program used to strip binaries.  This is especially
  983 # annoying in cross-compiling environments, where the build's strip
  984 # is unlikely to handle the host's binaries.
  985 # Fortunately install-sh will honor a STRIPPROG variable, so we
  986 # always use install-sh in "make install-strip", and initialize
  987 # STRIPPROG with the value of the STRIP variable (set by the user).
  988 AC_DEFUN([AM_PROG_INSTALL_STRIP],
  989 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  990 # Installed binaries are usually stripped using 'strip' when the user
  991 # run "make install-strip".  However 'strip' might not be the right
  992 # tool to use in cross-compilation environments, therefore Automake
  993 # will honor the 'STRIP' environment variable to overrule this program.
  994 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  995 if test "$cross_compiling" != no; then
  996   AC_CHECK_TOOL([STRIP], [strip], :)
  997 fi
  998 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  999 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1000 
 1001 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
 1002 #
 1003 # This file is free software; the Free Software Foundation
 1004 # gives unlimited permission to copy and/or distribute it,
 1005 # with or without modifications, as long as this notice is preserved.
 1006 
 1007 # _AM_SUBST_NOTMAKE(VARIABLE)
 1008 # ---------------------------
 1009 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1010 # This macro is traced by Automake.
 1011 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1012 
 1013 # AM_SUBST_NOTMAKE(VARIABLE)
 1014 # --------------------------
 1015 # Public sister of _AM_SUBST_NOTMAKE.
 1016 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1017 
 1018 # Check how to create a tarball.                            -*- Autoconf -*-
 1019 
 1020 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
 1021 #
 1022 # This file is free software; the Free Software Foundation
 1023 # gives unlimited permission to copy and/or distribute it,
 1024 # with or without modifications, as long as this notice is preserved.
 1025 
 1026 # _AM_PROG_TAR(FORMAT)
 1027 # --------------------
 1028 # Check how to create a tarball in format FORMAT.
 1029 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1030 #
 1031 # Substitute a variable $(am__tar) that is a command
 1032 # writing to stdout a FORMAT-tarball containing the directory
 1033 # $tardir.
 1034 #     tardir=directory && $(am__tar) > result.tar
 1035 #
 1036 # Substitute a variable $(am__untar) that extract such
 1037 # a tarball read from stdin.
 1038 #     $(am__untar) < result.tar
 1039 #
 1040 AC_DEFUN([_AM_PROG_TAR],
 1041 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1042 # in the wild :-(  We should find a proper way to deprecate it ...
 1043 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1044 
 1045 # We'll loop over all known methods to create a tar archive until one works.
 1046 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1047 
 1048 m4_if([$1], [v7],
 1049   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1050 
 1051   [m4_case([$1],
 1052     [ustar],
 1053      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1054       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1055       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1056       # and bug#13588).
 1057       am_max_uid=2097151 # 2^21 - 1
 1058       am_max_gid=$am_max_uid
 1059       # The $UID and $GID variables are not portable, so we need to resort
 1060       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1061       # below are definitely unexpected, so allow the users to see them
 1062       # (that is, avoid stderr redirection).
 1063       am_uid=`id -u || echo unknown`
 1064       am_gid=`id -g || echo unknown`
 1065       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1066       if test $am_uid -le $am_max_uid; then
 1067          AC_MSG_RESULT([yes])
 1068       else
 1069          AC_MSG_RESULT([no])
 1070          _am_tools=none
 1071       fi
 1072       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1073       if test $am_gid -le $am_max_gid; then
 1074          AC_MSG_RESULT([yes])
 1075       else
 1076         AC_MSG_RESULT([no])
 1077         _am_tools=none
 1078       fi],
 1079 
 1080   [pax],
 1081     [],
 1082 
 1083   [m4_fatal([Unknown tar format])])
 1084 
 1085   AC_MSG_CHECKING([how to create a $1 tar archive])
 1086 
 1087   # Go ahead even if we have the value already cached.  We do so because we
 1088   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1089   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1090 
 1091   for _am_tool in $_am_tools; do
 1092     case $_am_tool in
 1093     gnutar)
 1094       for _am_tar in tar gnutar gtar; do
 1095         AM_RUN_LOG([$_am_tar --version]) && break
 1096       done
 1097       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1098       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1099       am__untar="$_am_tar -xf -"
 1100       ;;
 1101     plaintar)
 1102       # Must skip GNU tar: if it does not support --format= it doesn't create
 1103       # ustar tarball either.
 1104       (tar --version) >/dev/null 2>&1 && continue
 1105       am__tar='tar chf - "$$tardir"'
 1106       am__tar_='tar chf - "$tardir"'
 1107       am__untar='tar xf -'
 1108       ;;
 1109     pax)
 1110       am__tar='pax -L -x $1 -w "$$tardir"'
 1111       am__tar_='pax -L -x $1 -w "$tardir"'
 1112       am__untar='pax -r'
 1113       ;;
 1114     cpio)
 1115       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1116       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1117       am__untar='cpio -i -H $1 -d'
 1118       ;;
 1119     none)
 1120       am__tar=false
 1121       am__tar_=false
 1122       am__untar=false
 1123       ;;
 1124     esac
 1125 
 1126     # If the value was cached, stop now.  We just wanted to have am__tar
 1127     # and am__untar set.
 1128     test -n "${am_cv_prog_tar_$1}" && break
 1129 
 1130     # tar/untar a dummy directory, and stop if the command works.
 1131     rm -rf conftest.dir
 1132     mkdir conftest.dir
 1133     echo GrepMe > conftest.dir/file
 1134     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1135     rm -rf conftest.dir
 1136     if test -s conftest.tar; then
 1137       AM_RUN_LOG([$am__untar <conftest.tar])
 1138       AM_RUN_LOG([cat conftest.dir/file])
 1139       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1140     fi
 1141   done
 1142   rm -rf conftest.dir
 1143 
 1144   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1145   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1146 
 1147 AC_SUBST([am__tar])
 1148 AC_SUBST([am__untar])
 1149 ]) # _AM_PROG_TAR
 1150