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    1 # generated automatically by aclocal 1.16.2 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2020 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($@)])])
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   22 
   23 # Copyright (C) 2002-2020 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.
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   29 # AM_AUTOMAKE_VERSION(VERSION)
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   59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
   60 
   61 # Copyright (C) 2001-2020 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 -*-
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  113 # Copyright (C) 1997-2020 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)
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  122 AC_DEFUN([AM_CONDITIONAL],
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  143 
  144 # Copyright (C) 1999-2020 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 # ----------------------
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  182 AC_CACHE_CHECK([dependency style of $depcc],
  183                [am_cv_$1_dependencies_compiler_type],
  184 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
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  188   # making a dummy file named 'D' -- because '-MD' means "put the output
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  190   rm -rf conftest.dir
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  194   cp "$am_depcomp" 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
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  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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  215      *\ -arch\ *\ -arch\ *) am__universal=true ;;
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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$i.h
  232     done
  233     echo "${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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  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$enable_dependency_tracking" != xno])
  327 AC_SUBST([AMDEPBACKSLASH])dnl
  328 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  329 AC_SUBST([am__nodep])dnl
  330 _AM_SUBST_NOTMAKE([am__nodep])dnl
  331 ])
  332 
  333 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  334 
  335 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  336 #
  337 # This file is free software; the Free Software Foundation
  338 # gives unlimited permission to copy and/or distribute it,
  339 # with or without modifications, as long as this notice is preserved.
  340 
  341 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  342 # ------------------------------
  343 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  344 [{
  345   # Older Autoconf quotes --file arguments for eval, but not when files
  346   # are listed without --file.  Let's play safe and only enable the eval
  347   # if we detect the quoting.
  348   # TODO: see whether this extra hack can be removed once we start
  349   # requiring Autoconf 2.70 or later.
  350   AS_CASE([$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) 1996-2020 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 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  432 dnl the ones we care about.
  433 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  434 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  435 AC_REQUIRE([AC_PROG_INSTALL])dnl
  436 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  437   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  438   # is not polluted with repeated "-I."
  439   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  440   # test to see if srcdir already configured
  441   if test -f $srcdir/config.status; then
  442     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  443   fi
  444 fi
  445 
  446 # test whether we have cygpath
  447 if test -z "$CYGPATH_W"; then
  448   if (cygpath --version) >/dev/null 2>/dev/null; then
  449     CYGPATH_W='cygpath -w'
  450   else
  451     CYGPATH_W=echo
  452   fi
  453 fi
  454 AC_SUBST([CYGPATH_W])
  455 
  456 # Define the identity of the package.
  457 dnl Distinguish between old-style and new-style calls.
  458 m4_ifval([$2],
  459 [AC_DIAGNOSE([obsolete],
  460              [$0: two- and three-arguments forms are deprecated.])
  461 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  462  AC_SUBST([PACKAGE], [$1])dnl
  463  AC_SUBST([VERSION], [$2])],
  464 [_AM_SET_OPTIONS([$1])dnl
  465 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  466 m4_if(
  467   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  468   [ok:ok],,
  469   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  470  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  471  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  472 
  473 _AM_IF_OPTION([no-define],,
  474 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  475  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  476 
  477 # Some tools Automake needs.
  478 AC_REQUIRE([AM_SANITY_CHECK])dnl
  479 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  480 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  481 AM_MISSING_PROG([AUTOCONF], [autoconf])
  482 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  483 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  484 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  485 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  486 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  487 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  488 # For better backward compatibility.  To be removed once Automake 1.9.x
  489 # dies out for good.  For more background, see:
  490 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  491 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  492 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  493 # We need awk for the "check" target (and possibly the TAP driver).  The
  494 # system "awk" is bad on some platforms.
  495 AC_REQUIRE([AC_PROG_AWK])dnl
  496 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  497 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  498 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  499 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  500 			     [_AM_PROG_TAR([v7])])])
  501 _AM_IF_OPTION([no-dependencies],,
  502 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  503 		  [_AM_DEPENDENCIES([CC])],
  504 		  [m4_define([AC_PROG_CC],
  505 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  506 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  507 		  [_AM_DEPENDENCIES([CXX])],
  508 		  [m4_define([AC_PROG_CXX],
  509 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  510 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  511 		  [_AM_DEPENDENCIES([OBJC])],
  512 		  [m4_define([AC_PROG_OBJC],
  513 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  514 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  515 		  [_AM_DEPENDENCIES([OBJCXX])],
  516 		  [m4_define([AC_PROG_OBJCXX],
  517 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  518 ])
  519 AC_REQUIRE([AM_SILENT_RULES])dnl
  520 dnl The testsuite driver may need to know about EXEEXT, so add the
  521 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  522 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  523 AC_CONFIG_COMMANDS_PRE(dnl
  524 [m4_provide_if([_AM_COMPILER_EXEEXT],
  525   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  526 
  527 # POSIX will say in a future version that running "rm -f" with no argument
  528 # is OK; and we want to be able to make that assumption in our Makefile
  529 # recipes.  So use an aggressive probe to check that the usage we want is
  530 # actually supported "in the wild" to an acceptable degree.
  531 # See automake bug#10828.
  532 # To make any issue more visible, cause the running configure to be aborted
  533 # by default if the 'rm' program in use doesn't match our expectations; the
  534 # user can still override this though.
  535 if rm -f && rm -fr && rm -rf; then : OK; else
  536   cat >&2 <<'END'
  537 Oops!
  538 
  539 Your 'rm' program seems unable to run without file operands specified
  540 on the command line, even when the '-f' option is present.  This is contrary
  541 to the behaviour of most rm programs out there, and not conforming with
  542 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  543 
  544 Please tell bug-automake@gnu.org about your system, including the value
  545 of your $PATH and any error possibly output before this message.  This
  546 can help us improve future automake versions.
  547 
  548 END
  549   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  550     echo 'Configuration will proceed anyway, since you have set the' >&2
  551     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  552     echo >&2
  553   else
  554     cat >&2 <<'END'
  555 Aborting the configuration process, to ensure you take notice of the issue.
  556 
  557 You can download and install GNU coreutils to get an 'rm' implementation
  558 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  559 
  560 If you want to complete the configuration process using your problematic
  561 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  562 to "yes", and re-run configure.
  563 
  564 END
  565     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  566   fi
  567 fi
  568 dnl The trailing newline in this macro's definition is deliberate, for
  569 dnl backward compatibility and to allow trailing 'dnl'-style comments
  570 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  571 ])
  572 
  573 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  574 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  575 dnl mangled by Autoconf and run in a shell conditional statement.
  576 m4_define([_AC_COMPILER_EXEEXT],
  577 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  578 
  579 # When config.status generates a header, we must update the stamp-h file.
  580 # This file resides in the same directory as the config header
  581 # that is generated.  The stamp files are numbered to have different names.
  582 
  583 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  584 # loop where config.status creates the headers, so we can generate
  585 # our stamp files there.
  586 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  587 [# Compute $1's index in $config_headers.
  588 _am_arg=$1
  589 _am_stamp_count=1
  590 for _am_header in $config_headers :; do
  591   case $_am_header in
  592     $_am_arg | $_am_arg:* )
  593       break ;;
  594     * )
  595       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  596   esac
  597 done
  598 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  599 
  600 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  601 #
  602 # This file is free software; the Free Software Foundation
  603 # gives unlimited permission to copy and/or distribute it,
  604 # with or without modifications, as long as this notice is preserved.
  605 
  606 # AM_PROG_INSTALL_SH
  607 # ------------------
  608 # Define $install_sh.
  609 AC_DEFUN([AM_PROG_INSTALL_SH],
  610 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  611 if test x"${install_sh+set}" != xset; then
  612   case $am_aux_dir in
  613   *\ * | *\	*)
  614     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  615   *)
  616     install_sh="\${SHELL} $am_aux_dir/install-sh"
  617   esac
  618 fi
  619 AC_SUBST([install_sh])])
  620 
  621 # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  622 #
  623 # This file is free software; the Free Software Foundation
  624 # gives unlimited permission to copy and/or distribute it,
  625 # with or without modifications, as long as this notice is preserved.
  626 
  627 # Check whether the underlying file-system supports filenames
  628 # with a leading dot.  For instance MS-DOS doesn't.
  629 AC_DEFUN([AM_SET_LEADING_DOT],
  630 [rm -rf .tst 2>/dev/null
  631 mkdir .tst 2>/dev/null
  632 if test -d .tst; then
  633   am__leading_dot=.
  634 else
  635   am__leading_dot=_
  636 fi
  637 rmdir .tst 2>/dev/null
  638 AC_SUBST([am__leading_dot])])
  639 
  640 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  641 
  642 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  643 #
  644 # This file is free software; the Free Software Foundation
  645 # gives unlimited permission to copy and/or distribute it,
  646 # with or without modifications, as long as this notice is preserved.
  647 
  648 # AM_MAKE_INCLUDE()
  649 # -----------------
  650 # Check whether make has an 'include' directive that can support all
  651 # the idioms we need for our automatic dependency tracking code.
  652 AC_DEFUN([AM_MAKE_INCLUDE],
  653 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  654 cat > confinc.mk << 'END'
  655 am__doit:
  656 	@echo this is the am__doit target >confinc.out
  657 .PHONY: am__doit
  658 END
  659 am__include="#"
  660 am__quote=
  661 # BSD make does it like this.
  662 echo '.include "confinc.mk" # ignored' > confmf.BSD
  663 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  664 echo 'include confinc.mk # ignored' > confmf.GNU
  665 _am_result=no
  666 for s in GNU BSD; do
  667   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  668   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  669       ['0:this is the am__doit target'],
  670       [AS_CASE([$s],
  671           [BSD], [am__include='.include' am__quote='"'],
  672           [am__include='include' am__quote=''])])
  673   if test "$am__include" != "#"; then
  674     _am_result="yes ($s style)"
  675     break
  676   fi
  677 done
  678 rm -f confinc.* confmf.*
  679 AC_MSG_RESULT([${_am_result}])
  680 AC_SUBST([am__include])])
  681 AC_SUBST([am__quote])])
  682 
  683 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  684 
  685 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  686 #
  687 # This file is free software; the Free Software Foundation
  688 # gives unlimited permission to copy and/or distribute it,
  689 # with or without modifications, as long as this notice is preserved.
  690 
  691 # AM_MISSING_PROG(NAME, PROGRAM)
  692 # ------------------------------
  693 AC_DEFUN([AM_MISSING_PROG],
  694 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  695 $1=${$1-"${am_missing_run}$2"}
  696 AC_SUBST($1)])
  697 
  698 # AM_MISSING_HAS_RUN
  699 # ------------------
  700 # Define MISSING if not defined so far and test if it is modern enough.
  701 # If it is, set am_missing_run to use it, otherwise, to nothing.
  702 AC_DEFUN([AM_MISSING_HAS_RUN],
  703 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  704 AC_REQUIRE_AUX_FILE([missing])dnl
  705 if test x"${MISSING+set}" != xset; then
  706   case $am_aux_dir in
  707   *\ * | *\	*)
  708     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  709   *)
  710     MISSING="\${SHELL} $am_aux_dir/missing" ;;
  711   esac
  712 fi
  713 # Use eval to expand $SHELL
  714 if eval "$MISSING --is-lightweight"; then
  715   am_missing_run="$MISSING "
  716 else
  717   am_missing_run=
  718   AC_MSG_WARN(['missing' script is too old or missing])
  719 fi
  720 ])
  721 
  722 # Helper functions for option handling.                     -*- Autoconf -*-
  723 
  724 # Copyright (C) 2001-2020 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 # _AM_MANGLE_OPTION(NAME)
  731 # -----------------------
  732 AC_DEFUN([_AM_MANGLE_OPTION],
  733 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  734 
  735 # _AM_SET_OPTION(NAME)
  736 # --------------------
  737 # Set option NAME.  Presently that only means defining a flag for this option.
  738 AC_DEFUN([_AM_SET_OPTION],
  739 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  740 
  741 # _AM_SET_OPTIONS(OPTIONS)
  742 # ------------------------
  743 # OPTIONS is a space-separated list of Automake options.
  744 AC_DEFUN([_AM_SET_OPTIONS],
  745 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  746 
  747 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  748 # -------------------------------------------
  749 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  750 AC_DEFUN([_AM_IF_OPTION],
  751 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  752 
  753 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  754 #
  755 # This file is free software; the Free Software Foundation
  756 # gives unlimited permission to copy and/or distribute it,
  757 # with or without modifications, as long as this notice is preserved.
  758 
  759 # _AM_PROG_CC_C_O
  760 # ---------------
  761 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  762 # to automatically call this.
  763 AC_DEFUN([_AM_PROG_CC_C_O],
  764 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  765 AC_REQUIRE_AUX_FILE([compile])dnl
  766 AC_LANG_PUSH([C])dnl
  767 AC_CACHE_CHECK(
  768   [whether $CC understands -c and -o together],
  769   [am_cv_prog_cc_c_o],
  770   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  771   # Make sure it works both with $CC and with simple cc.
  772   # Following AC_PROG_CC_C_O, we do the test twice because some
  773   # compilers refuse to overwrite an existing .o file with -o,
  774   # though they will create one.
  775   am_cv_prog_cc_c_o=yes
  776   for am_i in 1 2; do
  777     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  778          && test -f conftest2.$ac_objext; then
  779       : OK
  780     else
  781       am_cv_prog_cc_c_o=no
  782       break
  783     fi
  784   done
  785   rm -f core conftest*
  786   unset am_i])
  787 if test "$am_cv_prog_cc_c_o" != yes; then
  788    # Losing compiler, so override with the script.
  789    # FIXME: It is wrong to rewrite CC.
  790    # But if we don't then we get into trouble of one sort or another.
  791    # A longer-term fix would be to have automake use am__CC in this case,
  792    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  793    CC="$am_aux_dir/compile $CC"
  794 fi
  795 AC_LANG_POP([C])])
  796 
  797 # For backward compatibility.
  798 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  799 
  800 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  801 #
  802 # This file is free software; the Free Software Foundation
  803 # gives unlimited permission to copy and/or distribute it,
  804 # with or without modifications, as long as this notice is preserved.
  805 
  806 # AM_RUN_LOG(COMMAND)
  807 # -------------------
  808 # Run COMMAND, save the exit status in ac_status, and log it.
  809 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  810 AC_DEFUN([AM_RUN_LOG],
  811 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  812    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  813    ac_status=$?
  814    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  815    (exit $ac_status); }])
  816 
  817 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  818 
  819 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  820 #
  821 # This file is free software; the Free Software Foundation
  822 # gives unlimited permission to copy and/or distribute it,
  823 # with or without modifications, as long as this notice is preserved.
  824 
  825 # AM_SANITY_CHECK
  826 # ---------------
  827 AC_DEFUN([AM_SANITY_CHECK],
  828 [AC_MSG_CHECKING([whether build environment is sane])
  829 # Reject unsafe characters in $srcdir or the absolute working directory
  830 # name.  Accept space and tab only in the latter.
  831 am_lf='
  832 '
  833 case `pwd` in
  834   *[[\\\"\#\$\&\'\`$am_lf]]*)
  835     AC_MSG_ERROR([unsafe absolute working directory name]);;
  836 esac
  837 case $srcdir in
  838   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  839     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  840 esac
  841 
  842 # Do 'set' in a subshell so we don't clobber the current shell's
  843 # arguments.  Must try -L first in case configure is actually a
  844 # symlink; some systems play weird games with the mod time of symlinks
  845 # (eg FreeBSD returns the mod time of the symlink's containing
  846 # directory).
  847 if (
  848    am_has_slept=no
  849    for am_try in 1 2; do
  850      echo "timestamp, slept: $am_has_slept" > conftest.file
  851      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  852      if test "$[*]" = "X"; then
  853 	# -L didn't work.
  854 	set X `ls -t "$srcdir/configure" conftest.file`
  855      fi
  856      if test "$[*]" != "X $srcdir/configure conftest.file" \
  857 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  858 
  859 	# If neither matched, then we have a broken ls.  This can happen
  860 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  861 	# broken ls alias from the environment.  This has actually
  862 	# happened.  Such a system could not be considered "sane".
  863 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  864   alias in your environment])
  865      fi
  866      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  867        break
  868      fi
  869      # Just in case.
  870      sleep 1
  871      am_has_slept=yes
  872    done
  873    test "$[2]" = conftest.file
  874    )
  875 then
  876    # Ok.
  877    :
  878 else
  879    AC_MSG_ERROR([newly created file is older than distributed files!
  880 Check your system clock])
  881 fi
  882 AC_MSG_RESULT([yes])
  883 # If we didn't sleep, we still need to ensure time stamps of config.status and
  884 # generated files are strictly newer.
  885 am_sleep_pid=
  886 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  887   ( sleep 1 ) &
  888   am_sleep_pid=$!
  889 fi
  890 AC_CONFIG_COMMANDS_PRE(
  891   [AC_MSG_CHECKING([that generated files are newer than configure])
  892    if test -n "$am_sleep_pid"; then
  893      # Hide warnings about reused PIDs.
  894      wait $am_sleep_pid 2>/dev/null
  895    fi
  896    AC_MSG_RESULT([done])])
  897 rm -f conftest.file
  898 ])
  899 
  900 # Copyright (C) 2009-2020 Free Software Foundation, Inc.
  901 #
  902 # This file is free software; the Free Software Foundation
  903 # gives unlimited permission to copy and/or distribute it,
  904 # with or without modifications, as long as this notice is preserved.
  905 
  906 # AM_SILENT_RULES([DEFAULT])
  907 # --------------------------
  908 # Enable less verbose build rules; with the default set to DEFAULT
  909 # ("yes" being less verbose, "no" or empty being verbose).
  910 AC_DEFUN([AM_SILENT_RULES],
  911 [AC_ARG_ENABLE([silent-rules], [dnl
  912 AS_HELP_STRING(
  913   [--enable-silent-rules],
  914   [less verbose build output (undo: "make V=1")])
  915 AS_HELP_STRING(
  916   [--disable-silent-rules],
  917   [verbose build output (undo: "make V=0")])dnl
  918 ])
  919 case $enable_silent_rules in @%:@ (((
  920   yes) AM_DEFAULT_VERBOSITY=0;;
  921    no) AM_DEFAULT_VERBOSITY=1;;
  922     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  923 esac
  924 dnl
  925 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  926 dnl do not support nested variable expansions.
  927 dnl See automake bug#9928 and bug#10237.
  928 am_make=${MAKE-make}
  929 AC_CACHE_CHECK([whether $am_make supports nested variables],
  930    [am_cv_make_support_nested_variables],
  931    [if AS_ECHO([['TRUE=$(BAR$(V))
  932 BAR0=false
  933 BAR1=true
  934 V=1
  935 am__doit:
  936 	@$(TRUE)
  937 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  938   am_cv_make_support_nested_variables=yes
  939 else
  940   am_cv_make_support_nested_variables=no
  941 fi])
  942 if test $am_cv_make_support_nested_variables = yes; then
  943   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  944   AM_V='$(V)'
  945   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  946 else
  947   AM_V=$AM_DEFAULT_VERBOSITY
  948   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  949 fi
  950 AC_SUBST([AM_V])dnl
  951 AM_SUBST_NOTMAKE([AM_V])dnl
  952 AC_SUBST([AM_DEFAULT_V])dnl
  953 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  954 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  955 AM_BACKSLASH='\'
  956 AC_SUBST([AM_BACKSLASH])dnl
  957 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  958 ])
  959 
  960 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  961 #
  962 # This file is free software; the Free Software Foundation
  963 # gives unlimited permission to copy and/or distribute it,
  964 # with or without modifications, as long as this notice is preserved.
  965 
  966 # AM_PROG_INSTALL_STRIP
  967 # ---------------------
  968 # One issue with vendor 'install' (even GNU) is that you can't
  969 # specify the program used to strip binaries.  This is especially
  970 # annoying in cross-compiling environments, where the build's strip
  971 # is unlikely to handle the host's binaries.
  972 # Fortunately install-sh will honor a STRIPPROG variable, so we
  973 # always use install-sh in "make install-strip", and initialize
  974 # STRIPPROG with the value of the STRIP variable (set by the user).
  975 AC_DEFUN([AM_PROG_INSTALL_STRIP],
  976 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  977 # Installed binaries are usually stripped using 'strip' when the user
  978 # run "make install-strip".  However 'strip' might not be the right
  979 # tool to use in cross-compilation environments, therefore Automake
  980 # will honor the 'STRIP' environment variable to overrule this program.
  981 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  982 if test "$cross_compiling" != no; then
  983   AC_CHECK_TOOL([STRIP], [strip], :)
  984 fi
  985 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  986 AC_SUBST([INSTALL_STRIP_PROGRAM])])
  987 
  988 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
  989 #
  990 # This file is free software; the Free Software Foundation
  991 # gives unlimited permission to copy and/or distribute it,
  992 # with or without modifications, as long as this notice is preserved.
  993 
  994 # _AM_SUBST_NOTMAKE(VARIABLE)
  995 # ---------------------------
  996 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  997 # This macro is traced by Automake.
  998 AC_DEFUN([_AM_SUBST_NOTMAKE])
  999 
 1000 # AM_SUBST_NOTMAKE(VARIABLE)
 1001 # --------------------------
 1002 # Public sister of _AM_SUBST_NOTMAKE.
 1003 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1004 
 1005 # Check how to create a tarball.                            -*- Autoconf -*-
 1006 
 1007 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
 1008 #
 1009 # This file is free software; the Free Software Foundation
 1010 # gives unlimited permission to copy and/or distribute it,
 1011 # with or without modifications, as long as this notice is preserved.
 1012 
 1013 # _AM_PROG_TAR(FORMAT)
 1014 # --------------------
 1015 # Check how to create a tarball in format FORMAT.
 1016 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1017 #
 1018 # Substitute a variable $(am__tar) that is a command
 1019 # writing to stdout a FORMAT-tarball containing the directory
 1020 # $tardir.
 1021 #     tardir=directory && $(am__tar) > result.tar
 1022 #
 1023 # Substitute a variable $(am__untar) that extract such
 1024 # a tarball read from stdin.
 1025 #     $(am__untar) < result.tar
 1026 #
 1027 AC_DEFUN([_AM_PROG_TAR],
 1028 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1029 # in the wild :-(  We should find a proper way to deprecate it ...
 1030 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1031 
 1032 # We'll loop over all known methods to create a tar archive until one works.
 1033 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1034 
 1035 m4_if([$1], [v7],
 1036   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1037 
 1038   [m4_case([$1],
 1039     [ustar],
 1040      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1041       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1042       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1043       # and bug#13588).
 1044       am_max_uid=2097151 # 2^21 - 1
 1045       am_max_gid=$am_max_uid
 1046       # The $UID and $GID variables are not portable, so we need to resort
 1047       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1048       # below are definitely unexpected, so allow the users to see them
 1049       # (that is, avoid stderr redirection).
 1050       am_uid=`id -u || echo unknown`
 1051       am_gid=`id -g || echo unknown`
 1052       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1053       if test $am_uid -le $am_max_uid; then
 1054          AC_MSG_RESULT([yes])
 1055       else
 1056          AC_MSG_RESULT([no])
 1057          _am_tools=none
 1058       fi
 1059       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1060       if test $am_gid -le $am_max_gid; then
 1061          AC_MSG_RESULT([yes])
 1062       else
 1063         AC_MSG_RESULT([no])
 1064         _am_tools=none
 1065       fi],
 1066 
 1067   [pax],
 1068     [],
 1069 
 1070   [m4_fatal([Unknown tar format])])
 1071 
 1072   AC_MSG_CHECKING([how to create a $1 tar archive])
 1073 
 1074   # Go ahead even if we have the value already cached.  We do so because we
 1075   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1076   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1077 
 1078   for _am_tool in $_am_tools; do
 1079     case $_am_tool in
 1080     gnutar)
 1081       for _am_tar in tar gnutar gtar; do
 1082         AM_RUN_LOG([$_am_tar --version]) && break
 1083       done
 1084       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1085       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1086       am__untar="$_am_tar -xf -"
 1087       ;;
 1088     plaintar)
 1089       # Must skip GNU tar: if it does not support --format= it doesn't create
 1090       # ustar tarball either.
 1091       (tar --version) >/dev/null 2>&1 && continue
 1092       am__tar='tar chf - "$$tardir"'
 1093       am__tar_='tar chf - "$tardir"'
 1094       am__untar='tar xf -'
 1095       ;;
 1096     pax)
 1097       am__tar='pax -L -x $1 -w "$$tardir"'
 1098       am__tar_='pax -L -x $1 -w "$tardir"'
 1099       am__untar='pax -r'
 1100       ;;
 1101     cpio)
 1102       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1103       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1104       am__untar='cpio -i -H $1 -d'
 1105       ;;
 1106     none)
 1107       am__tar=false
 1108       am__tar_=false
 1109       am__untar=false
 1110       ;;
 1111     esac
 1112 
 1113     # If the value was cached, stop now.  We just wanted to have am__tar
 1114     # and am__untar set.
 1115     test -n "${am_cv_prog_tar_$1}" && break
 1116 
 1117     # tar/untar a dummy directory, and stop if the command works.
 1118     rm -rf conftest.dir
 1119     mkdir conftest.dir
 1120     echo GrepMe > conftest.dir/file
 1121     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1122     rm -rf conftest.dir
 1123     if test -s conftest.tar; then
 1124       AM_RUN_LOG([$am__untar <conftest.tar])
 1125       AM_RUN_LOG([cat conftest.dir/file])
 1126       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1127     fi
 1128   done
 1129   rm -rf conftest.dir
 1130 
 1131   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1132   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1133 
 1134 AC_SUBST([am__tar])
 1135 AC_SUBST([am__untar])
 1136 ]) # _AM_PROG_TAR
 1137 
 1138 m4_include([m4/arch.m4])
 1139 m4_include([m4/codeset.m4])
 1140 m4_include([m4/gettext.m4])
 1141 m4_include([m4/iconv.m4])
 1142 m4_include([m4/intlmacosx.m4])
 1143 m4_include([m4/lcmessage.m4])
 1144 m4_include([m4/lib-ld.m4])
 1145 m4_include([m4/lib-link.m4])
 1146 m4_include([m4/lib-prefix.m4])
 1147 m4_include([m4/libsigsegv.m4])
 1148 m4_include([m4/longlong.m4])
 1149 m4_include([m4/mpfr.m4])
 1150 m4_include([m4/nls.m4])
 1151 m4_include([m4/noreturn.m4])
 1152 m4_include([m4/po.m4])
 1153 m4_include([m4/progtest.m4])
 1154 m4_include([m4/readline.m4])
 1155 m4_include([m4/socket.m4])
 1156 m4_include([m4/triplet-transformation.m4])
 1157 m4_include([m4/ulonglong.m4])