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    1 # generated automatically by aclocal 1.16.3 -*- 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 -*-
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   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,
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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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  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)
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  199   # side effect of compilation, but ICC will put the dependencies in
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  203 
  204   am_cv_$1_dependencies_compiler_type=none
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  218   for depmode in $am_compiler_list; do
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  222     #
  223     # We need to recreate these files for each test, as the compiler may
  224     # overwrite some of them when testing with obscure command lines.
  225     # This happens at least with the AIX C compiler.
  226     : > sub/conftest.c
  227     for i in 1 2 3 4 5 6; do
  228       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  229       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
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  235     # We check with '-c' and '-o' for the sake of the "dashmstdout"
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  250 	continue
  251       else
  252 	break
  253       fi
  254       ;;
  255     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  256       # This compiler won't grok '-c -o', but also, the minuso test has
  257       # not run yet.  These depmodes are late enough in the game, and
  258       # so weak that their functioning should not be impacted.
  259       am__obj=conftest.${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
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  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([$1])dnl
  465 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  466 m4_if(
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  469   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  470  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  471  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  472 
  473 _AM_IF_OPTION([no-define],,
  474 [AC_DEFINE_UNQUOTED([PACKAGE], ["$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   MISSING="\${SHELL} '$am_aux_dir/missing'"
  707 fi
  708 # Use eval to expand $SHELL
  709 if eval "$MISSING --is-lightweight"; then
  710   am_missing_run="$MISSING "
  711 else
  712   am_missing_run=
  713   AC_MSG_WARN(['missing' script is too old or missing])
  714 fi
  715 ])
  716 
  717 # Helper functions for option handling.                     -*- Autoconf -*-
  718 
  719 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  720 #
  721 # This file is free software; the Free Software Foundation
  722 # gives unlimited permission to copy and/or distribute it,
  723 # with or without modifications, as long as this notice is preserved.
  724 
  725 # _AM_MANGLE_OPTION(NAME)
  726 # -----------------------
  727 AC_DEFUN([_AM_MANGLE_OPTION],
  728 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  729 
  730 # _AM_SET_OPTION(NAME)
  731 # --------------------
  732 # Set option NAME.  Presently that only means defining a flag for this option.
  733 AC_DEFUN([_AM_SET_OPTION],
  734 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  735 
  736 # _AM_SET_OPTIONS(OPTIONS)
  737 # ------------------------
  738 # OPTIONS is a space-separated list of Automake options.
  739 AC_DEFUN([_AM_SET_OPTIONS],
  740 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  741 
  742 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  743 # -------------------------------------------
  744 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  745 AC_DEFUN([_AM_IF_OPTION],
  746 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  747 
  748 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  749 #
  750 # This file is free software; the Free Software Foundation
  751 # gives unlimited permission to copy and/or distribute it,
  752 # with or without modifications, as long as this notice is preserved.
  753 
  754 # _AM_PROG_CC_C_O
  755 # ---------------
  756 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  757 # to automatically call this.
  758 AC_DEFUN([_AM_PROG_CC_C_O],
  759 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  760 AC_REQUIRE_AUX_FILE([compile])dnl
  761 AC_LANG_PUSH([C])dnl
  762 AC_CACHE_CHECK(
  763   [whether $CC understands -c and -o together],
  764   [am_cv_prog_cc_c_o],
  765   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  766   # Make sure it works both with $CC and with simple cc.
  767   # Following AC_PROG_CC_C_O, we do the test twice because some
  768   # compilers refuse to overwrite an existing .o file with -o,
  769   # though they will create one.
  770   am_cv_prog_cc_c_o=yes
  771   for am_i in 1 2; do
  772     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  773          && test -f conftest2.$ac_objext; then
  774       : OK
  775     else
  776       am_cv_prog_cc_c_o=no
  777       break
  778     fi
  779   done
  780   rm -f core conftest*
  781   unset am_i])
  782 if test "$am_cv_prog_cc_c_o" != yes; then
  783    # Losing compiler, so override with the script.
  784    # FIXME: It is wrong to rewrite CC.
  785    # But if we don't then we get into trouble of one sort or another.
  786    # A longer-term fix would be to have automake use am__CC in this case,
  787    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  788    CC="$am_aux_dir/compile $CC"
  789 fi
  790 AC_LANG_POP([C])])
  791 
  792 # For backward compatibility.
  793 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  794 
  795 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  796 #
  797 # This file is free software; the Free Software Foundation
  798 # gives unlimited permission to copy and/or distribute it,
  799 # with or without modifications, as long as this notice is preserved.
  800 
  801 # AM_RUN_LOG(COMMAND)
  802 # -------------------
  803 # Run COMMAND, save the exit status in ac_status, and log it.
  804 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  805 AC_DEFUN([AM_RUN_LOG],
  806 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  807    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  808    ac_status=$?
  809    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  810    (exit $ac_status); }])
  811 
  812 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  813 
  814 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  815 #
  816 # This file is free software; the Free Software Foundation
  817 # gives unlimited permission to copy and/or distribute it,
  818 # with or without modifications, as long as this notice is preserved.
  819 
  820 # AM_SANITY_CHECK
  821 # ---------------
  822 AC_DEFUN([AM_SANITY_CHECK],
  823 [AC_MSG_CHECKING([whether build environment is sane])
  824 # Reject unsafe characters in $srcdir or the absolute working directory
  825 # name.  Accept space and tab only in the latter.
  826 am_lf='
  827 '
  828 case `pwd` in
  829   *[[\\\"\#\$\&\'\`$am_lf]]*)
  830     AC_MSG_ERROR([unsafe absolute working directory name]);;
  831 esac
  832 case $srcdir in
  833   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  834     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  835 esac
  836 
  837 # Do 'set' in a subshell so we don't clobber the current shell's
  838 # arguments.  Must try -L first in case configure is actually a
  839 # symlink; some systems play weird games with the mod time of symlinks
  840 # (eg FreeBSD returns the mod time of the symlink's containing
  841 # directory).
  842 if (
  843    am_has_slept=no
  844    for am_try in 1 2; do
  845      echo "timestamp, slept: $am_has_slept" > conftest.file
  846      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  847      if test "$[*]" = "X"; then
  848 	# -L didn't work.
  849 	set X `ls -t "$srcdir/configure" conftest.file`
  850      fi
  851      if test "$[*]" != "X $srcdir/configure conftest.file" \
  852 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  853 
  854 	# If neither matched, then we have a broken ls.  This can happen
  855 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  856 	# broken ls alias from the environment.  This has actually
  857 	# happened.  Such a system could not be considered "sane".
  858 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  859   alias in your environment])
  860      fi
  861      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  862        break
  863      fi
  864      # Just in case.
  865      sleep 1
  866      am_has_slept=yes
  867    done
  868    test "$[2]" = conftest.file
  869    )
  870 then
  871    # Ok.
  872    :
  873 else
  874    AC_MSG_ERROR([newly created file is older than distributed files!
  875 Check your system clock])
  876 fi
  877 AC_MSG_RESULT([yes])
  878 # If we didn't sleep, we still need to ensure time stamps of config.status and
  879 # generated files are strictly newer.
  880 am_sleep_pid=
  881 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  882   ( sleep 1 ) &
  883   am_sleep_pid=$!
  884 fi
  885 AC_CONFIG_COMMANDS_PRE(
  886   [AC_MSG_CHECKING([that generated files are newer than configure])
  887    if test -n "$am_sleep_pid"; then
  888      # Hide warnings about reused PIDs.
  889      wait $am_sleep_pid 2>/dev/null
  890    fi
  891    AC_MSG_RESULT([done])])
  892 rm -f conftest.file
  893 ])
  894 
  895 # Copyright (C) 2009-2020 Free Software Foundation, Inc.
  896 #
  897 # This file is free software; the Free Software Foundation
  898 # gives unlimited permission to copy and/or distribute it,
  899 # with or without modifications, as long as this notice is preserved.
  900 
  901 # AM_SILENT_RULES([DEFAULT])
  902 # --------------------------
  903 # Enable less verbose build rules; with the default set to DEFAULT
  904 # ("yes" being less verbose, "no" or empty being verbose).
  905 AC_DEFUN([AM_SILENT_RULES],
  906 [AC_ARG_ENABLE([silent-rules], [dnl
  907 AS_HELP_STRING(
  908   [--enable-silent-rules],
  909   [less verbose build output (undo: "make V=1")])
  910 AS_HELP_STRING(
  911   [--disable-silent-rules],
  912   [verbose build output (undo: "make V=0")])dnl
  913 ])
  914 case $enable_silent_rules in @%:@ (((
  915   yes) AM_DEFAULT_VERBOSITY=0;;
  916    no) AM_DEFAULT_VERBOSITY=1;;
  917     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  918 esac
  919 dnl
  920 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  921 dnl do not support nested variable expansions.
  922 dnl See automake bug#9928 and bug#10237.
  923 am_make=${MAKE-make}
  924 AC_CACHE_CHECK([whether $am_make supports nested variables],
  925    [am_cv_make_support_nested_variables],
  926    [if AS_ECHO([['TRUE=$(BAR$(V))
  927 BAR0=false
  928 BAR1=true
  929 V=1
  930 am__doit:
  931 	@$(TRUE)
  932 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  933   am_cv_make_support_nested_variables=yes
  934 else
  935   am_cv_make_support_nested_variables=no
  936 fi])
  937 if test $am_cv_make_support_nested_variables = yes; then
  938   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  939   AM_V='$(V)'
  940   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  941 else
  942   AM_V=$AM_DEFAULT_VERBOSITY
  943   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  944 fi
  945 AC_SUBST([AM_V])dnl
  946 AM_SUBST_NOTMAKE([AM_V])dnl
  947 AC_SUBST([AM_DEFAULT_V])dnl
  948 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  949 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  950 AM_BACKSLASH='\'
  951 AC_SUBST([AM_BACKSLASH])dnl
  952 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  953 ])
  954 
  955 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  956 #
  957 # This file is free software; the Free Software Foundation
  958 # gives unlimited permission to copy and/or distribute it,
  959 # with or without modifications, as long as this notice is preserved.
  960 
  961 # AM_PROG_INSTALL_STRIP
  962 # ---------------------
  963 # One issue with vendor 'install' (even GNU) is that you can't
  964 # specify the program used to strip binaries.  This is especially
  965 # annoying in cross-compiling environments, where the build's strip
  966 # is unlikely to handle the host's binaries.
  967 # Fortunately install-sh will honor a STRIPPROG variable, so we
  968 # always use install-sh in "make install-strip", and initialize
  969 # STRIPPROG with the value of the STRIP variable (set by the user).
  970 AC_DEFUN([AM_PROG_INSTALL_STRIP],
  971 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  972 # Installed binaries are usually stripped using 'strip' when the user
  973 # run "make install-strip".  However 'strip' might not be the right
  974 # tool to use in cross-compilation environments, therefore Automake
  975 # will honor the 'STRIP' environment variable to overrule this program.
  976 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  977 if test "$cross_compiling" != no; then
  978   AC_CHECK_TOOL([STRIP], [strip], :)
  979 fi
  980 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  981 AC_SUBST([INSTALL_STRIP_PROGRAM])])
  982 
  983 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
  984 #
  985 # This file is free software; the Free Software Foundation
  986 # gives unlimited permission to copy and/or distribute it,
  987 # with or without modifications, as long as this notice is preserved.
  988 
  989 # _AM_SUBST_NOTMAKE(VARIABLE)
  990 # ---------------------------
  991 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  992 # This macro is traced by Automake.
  993 AC_DEFUN([_AM_SUBST_NOTMAKE])
  994 
  995 # AM_SUBST_NOTMAKE(VARIABLE)
  996 # --------------------------
  997 # Public sister of _AM_SUBST_NOTMAKE.
  998 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  999 
 1000 # Check how to create a tarball.                            -*- Autoconf -*-
 1001 
 1002 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
 1003 #
 1004 # This file is free software; the Free Software Foundation
 1005 # gives unlimited permission to copy and/or distribute it,
 1006 # with or without modifications, as long as this notice is preserved.
 1007 
 1008 # _AM_PROG_TAR(FORMAT)
 1009 # --------------------
 1010 # Check how to create a tarball in format FORMAT.
 1011 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1012 #
 1013 # Substitute a variable $(am__tar) that is a command
 1014 # writing to stdout a FORMAT-tarball containing the directory
 1015 # $tardir.
 1016 #     tardir=directory && $(am__tar) > result.tar
 1017 #
 1018 # Substitute a variable $(am__untar) that extract such
 1019 # a tarball read from stdin.
 1020 #     $(am__untar) < result.tar
 1021 #
 1022 AC_DEFUN([_AM_PROG_TAR],
 1023 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1024 # in the wild :-(  We should find a proper way to deprecate it ...
 1025 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1026 
 1027 # We'll loop over all known methods to create a tar archive until one works.
 1028 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1029 
 1030 m4_if([$1], [v7],
 1031   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1032 
 1033   [m4_case([$1],
 1034     [ustar],
 1035      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1036       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1037       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1038       # and bug#13588).
 1039       am_max_uid=2097151 # 2^21 - 1
 1040       am_max_gid=$am_max_uid
 1041       # The $UID and $GID variables are not portable, so we need to resort
 1042       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1043       # below are definitely unexpected, so allow the users to see them
 1044       # (that is, avoid stderr redirection).
 1045       am_uid=`id -u || echo unknown`
 1046       am_gid=`id -g || echo unknown`
 1047       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1048       if test $am_uid -le $am_max_uid; then
 1049          AC_MSG_RESULT([yes])
 1050       else
 1051          AC_MSG_RESULT([no])
 1052          _am_tools=none
 1053       fi
 1054       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1055       if test $am_gid -le $am_max_gid; then
 1056          AC_MSG_RESULT([yes])
 1057       else
 1058         AC_MSG_RESULT([no])
 1059         _am_tools=none
 1060       fi],
 1061 
 1062   [pax],
 1063     [],
 1064 
 1065   [m4_fatal([Unknown tar format])])
 1066 
 1067   AC_MSG_CHECKING([how to create a $1 tar archive])
 1068 
 1069   # Go ahead even if we have the value already cached.  We do so because we
 1070   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1071   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1072 
 1073   for _am_tool in $_am_tools; do
 1074     case $_am_tool in
 1075     gnutar)
 1076       for _am_tar in tar gnutar gtar; do
 1077         AM_RUN_LOG([$_am_tar --version]) && break
 1078       done
 1079       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1080       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1081       am__untar="$_am_tar -xf -"
 1082       ;;
 1083     plaintar)
 1084       # Must skip GNU tar: if it does not support --format= it doesn't create
 1085       # ustar tarball either.
 1086       (tar --version) >/dev/null 2>&1 && continue
 1087       am__tar='tar chf - "$$tardir"'
 1088       am__tar_='tar chf - "$tardir"'
 1089       am__untar='tar xf -'
 1090       ;;
 1091     pax)
 1092       am__tar='pax -L -x $1 -w "$$tardir"'
 1093       am__tar_='pax -L -x $1 -w "$tardir"'
 1094       am__untar='pax -r'
 1095       ;;
 1096     cpio)
 1097       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1098       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1099       am__untar='cpio -i -H $1 -d'
 1100       ;;
 1101     none)
 1102       am__tar=false
 1103       am__tar_=false
 1104       am__untar=false
 1105       ;;
 1106     esac
 1107 
 1108     # If the value was cached, stop now.  We just wanted to have am__tar
 1109     # and am__untar set.
 1110     test -n "${am_cv_prog_tar_$1}" && break
 1111 
 1112     # tar/untar a dummy directory, and stop if the command works.
 1113     rm -rf conftest.dir
 1114     mkdir conftest.dir
 1115     echo GrepMe > conftest.dir/file
 1116     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1117     rm -rf conftest.dir
 1118     if test -s conftest.tar; then
 1119       AM_RUN_LOG([$am__untar <conftest.tar])
 1120       AM_RUN_LOG([cat conftest.dir/file])
 1121       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1122     fi
 1123   done
 1124   rm -rf conftest.dir
 1125 
 1126   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1127   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1128 
 1129 AC_SUBST([am__tar])
 1130 AC_SUBST([am__untar])
 1131 ]) # _AM_PROG_TAR
 1132 
 1133 m4_include([acinclude.m4])