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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 
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   23 # Copyright (C) 2002-2020 Free Software Foundation, Inc.
   24 #
   25 # This file is free software; the Free Software Foundation
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  121 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  122 #
  123 # This file is free software; the Free Software Foundation
  124 # gives unlimited permission to copy and/or distribute it,
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  171 # AM_CONDITIONAL                                            -*- Autoconf -*-
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  173 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  174 #
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  203 
  204 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  205 #
  206 # This file is free software; the Free Software Foundation
  207 # gives unlimited permission to copy and/or distribute it,
  208 # with or without modifications, as long as this notice is preserved.
  209 
  210 
  211 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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  259   # side effect of compilation, but ICC will put the dependencies in
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  262   mkdir sub
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  264   am_cv_$1_dependencies_compiler_type=none
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  278   for depmode in $am_compiler_list; do
  279     # Setup a source with many dependencies, because some compilers
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  281     # we should not choose a depcomp mode which is confused by this.
  282     #
  283     # We need to recreate these files for each test, as the compiler may
  284     # overwrite some of them when testing with obscure command lines.
  285     # This happens at least with the AIX C compiler.
  286     : > sub/conftest.c
  287     for i in 1 2 3 4 5 6; do
  288       echo '#include "conftst'$i'.h"' >> sub/conftest.c
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  295     # We check with '-c' and '-o' for the sake of the "dashmstdout"
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  315     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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  325        source=sub/conftest.c object=$am__obj \
  326        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  327        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  328          >/dev/null 2>conftest.err &&
  329        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  330        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  331        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  332        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
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  336       # When given -MP, icc 7.0 and 7.1 complain thusly:
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  338       # The diagnosis changed in icc 8.0:
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  340       if (grep 'ignoring option' conftest.err ||
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  342         am_cv_$1_dependencies_compiler_type=$depmode
  343         break
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  345     fi
  346   done
  347 
  348   cd ..
  349   rm -rf conftest.dir
  350 else
  351   am_cv_$1_dependencies_compiler_type=none
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  354 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
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  360 
  361 # AM_SET_DEPDIR
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  370 
  371 # AM_DEP_TRACK
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  382   am_depcomp="$ac_aux_dir/depcomp"
  383   AMDEPBACKSLASH='\'
  384   am__nodep='_no'
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  386 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  387 AC_SUBST([AMDEPBACKSLASH])dnl
  388 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  389 AC_SUBST([am__nodep])dnl
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  392 
  393 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  394 
  395 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  396 #
  397 # This file is free software; the Free Software Foundation
  398 # gives unlimited permission to copy and/or distribute it,
  399 # with or without modifications, as long as this notice is preserved.
  400 
  401 # _AM_OUTPUT_DEPENDENCY_COMMANDS
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  403 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
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  405   # Older Autoconf quotes --file arguments for eval, but not when files
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  411           [*\'*], [eval set x "$CONFIG_FILES"],
  412           [*], [set x $CONFIG_FILES])
  413   shift
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  415   am_rc=0
  416   for am_mf
  417   do
  418     # Strip MF so we end up with the name of the file.
  419     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  420     # Check whether this is an Automake generated Makefile which includes
  421     # dependency-tracking related rules and includes.
  422     # Grep'ing the whole file directly is not great: AIX grep has a line
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  432   if test $am_rc -ne 0; then
  433     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  434     for automatic dependency tracking.  If GNU make was not used, consider
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  440   AS_UNSET([am_dirpart])
  441   AS_UNSET([am_filepart])
  442   AS_UNSET([am_mf])
  443   AS_UNSET([am_rc])
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  446 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  447 
  448 
  449 # AM_OUTPUT_DEPENDENCY_COMMANDS
  450 # -----------------------------
  451 # This macro should only be invoked once -- use via AC_REQUIRE.
  452 #
  453 # This code is only required when automatic dependency tracking is enabled.
  454 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
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  460 
  461 # Do all the work for Automake.                             -*- Autoconf -*-
  462 
  463 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  464 #
  465 # This file is free software; the Free Software Foundation
  466 # gives unlimited permission to copy and/or distribute it,
  467 # with or without modifications, as long as this notice is preserved.
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  469 # This macro actually does too much.  Some checks are only needed if
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  472 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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  497   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  498   # is not polluted with repeated "-I."
  499   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  500   # test to see if srcdir already configured
  501   if test -f $srcdir/config.status; then
  502     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  503   fi
  504 fi
  505 
  506 # test whether we have cygpath
  507 if test -z "$CYGPATH_W"; then
  508   if (cygpath --version) >/dev/null 2>/dev/null; then
  509     CYGPATH_W='cygpath -w'
  510   else
  511     CYGPATH_W=echo
  512   fi
  513 fi
  514 AC_SUBST([CYGPATH_W])
  515 
  516 # Define the identity of the package.
  517 dnl Distinguish between old-style and new-style calls.
  518 m4_ifval([$2],
  519 [AC_DIAGNOSE([obsolete],
  520              [$0: two- and three-arguments forms are deprecated.])
  521 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  522  AC_SUBST([PACKAGE], [$1])dnl
  523  AC_SUBST([VERSION], [$2])],
  524 [_AM_SET_OPTIONS([$1])dnl
  525 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  526 m4_if(
  527   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  528   [ok:ok],,
  529   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  530  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  531  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  532 
  533 _AM_IF_OPTION([no-define],,
  534 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  535  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  536 
  537 # Some tools Automake needs.
  538 AC_REQUIRE([AM_SANITY_CHECK])dnl
  539 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  540 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  541 AM_MISSING_PROG([AUTOCONF], [autoconf])
  542 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  543 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  544 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  545 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  546 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  547 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  548 # For better backward compatibility.  To be removed once Automake 1.9.x
  549 # dies out for good.  For more background, see:
  550 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  551 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  552 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  553 # We need awk for the "check" target (and possibly the TAP driver).  The
  554 # system "awk" is bad on some platforms.
  555 AC_REQUIRE([AC_PROG_AWK])dnl
  556 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  557 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  558 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  559 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  560 			     [_AM_PROG_TAR([v7])])])
  561 _AM_IF_OPTION([no-dependencies],,
  562 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  563 		  [_AM_DEPENDENCIES([CC])],
  564 		  [m4_define([AC_PROG_CC],
  565 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  566 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  567 		  [_AM_DEPENDENCIES([CXX])],
  568 		  [m4_define([AC_PROG_CXX],
  569 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  570 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  571 		  [_AM_DEPENDENCIES([OBJC])],
  572 		  [m4_define([AC_PROG_OBJC],
  573 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  574 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  575 		  [_AM_DEPENDENCIES([OBJCXX])],
  576 		  [m4_define([AC_PROG_OBJCXX],
  577 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  578 ])
  579 AC_REQUIRE([AM_SILENT_RULES])dnl
  580 dnl The testsuite driver may need to know about EXEEXT, so add the
  581 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  582 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  583 AC_CONFIG_COMMANDS_PRE(dnl
  584 [m4_provide_if([_AM_COMPILER_EXEEXT],
  585   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  586 
  587 # POSIX will say in a future version that running "rm -f" with no argument
  588 # is OK; and we want to be able to make that assumption in our Makefile
  589 # recipes.  So use an aggressive probe to check that the usage we want is
  590 # actually supported "in the wild" to an acceptable degree.
  591 # See automake bug#10828.
  592 # To make any issue more visible, cause the running configure to be aborted
  593 # by default if the 'rm' program in use doesn't match our expectations; the
  594 # user can still override this though.
  595 if rm -f && rm -fr && rm -rf; then : OK; else
  596   cat >&2 <<'END'
  597 Oops!
  598 
  599 Your 'rm' program seems unable to run without file operands specified
  600 on the command line, even when the '-f' option is present.  This is contrary
  601 to the behaviour of most rm programs out there, and not conforming with
  602 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  603 
  604 Please tell bug-automake@gnu.org about your system, including the value
  605 of your $PATH and any error possibly output before this message.  This
  606 can help us improve future automake versions.
  607 
  608 END
  609   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  610     echo 'Configuration will proceed anyway, since you have set the' >&2
  611     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  612     echo >&2
  613   else
  614     cat >&2 <<'END'
  615 Aborting the configuration process, to ensure you take notice of the issue.
  616 
  617 You can download and install GNU coreutils to get an 'rm' implementation
  618 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  619 
  620 If you want to complete the configuration process using your problematic
  621 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  622 to "yes", and re-run configure.
  623 
  624 END
  625     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  626   fi
  627 fi
  628 dnl The trailing newline in this macro's definition is deliberate, for
  629 dnl backward compatibility and to allow trailing 'dnl'-style comments
  630 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  631 ])
  632 
  633 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  634 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  635 dnl mangled by Autoconf and run in a shell conditional statement.
  636 m4_define([_AC_COMPILER_EXEEXT],
  637 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  638 
  639 # When config.status generates a header, we must update the stamp-h file.
  640 # This file resides in the same directory as the config header
  641 # that is generated.  The stamp files are numbered to have different names.
  642 
  643 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  644 # loop where config.status creates the headers, so we can generate
  645 # our stamp files there.
  646 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  647 [# Compute $1's index in $config_headers.
  648 _am_arg=$1
  649 _am_stamp_count=1
  650 for _am_header in $config_headers :; do
  651   case $_am_header in
  652     $_am_arg | $_am_arg:* )
  653       break ;;
  654     * )
  655       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  656   esac
  657 done
  658 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  659 
  660 # Copyright (C) 2001-2020 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_PROG_INSTALL_SH
  667 # ------------------
  668 # Define $install_sh.
  669 AC_DEFUN([AM_PROG_INSTALL_SH],
  670 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  671 if test x"${install_sh+set}" != xset; then
  672   case $am_aux_dir in
  673   *\ * | *\	*)
  674     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  675   *)
  676     install_sh="\${SHELL} $am_aux_dir/install-sh"
  677   esac
  678 fi
  679 AC_SUBST([install_sh])])
  680 
  681 # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  682 #
  683 # This file is free software; the Free Software Foundation
  684 # gives unlimited permission to copy and/or distribute it,
  685 # with or without modifications, as long as this notice is preserved.
  686 
  687 # Check whether the underlying file-system supports filenames
  688 # with a leading dot.  For instance MS-DOS doesn't.
  689 AC_DEFUN([AM_SET_LEADING_DOT],
  690 [rm -rf .tst 2>/dev/null
  691 mkdir .tst 2>/dev/null
  692 if test -d .tst; then
  693   am__leading_dot=.
  694 else
  695   am__leading_dot=_
  696 fi
  697 rmdir .tst 2>/dev/null
  698 AC_SUBST([am__leading_dot])])
  699 
  700 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  701 
  702 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  703 #
  704 # This file is free software; the Free Software Foundation
  705 # gives unlimited permission to copy and/or distribute it,
  706 # with or without modifications, as long as this notice is preserved.
  707 
  708 # AM_MAKE_INCLUDE()
  709 # -----------------
  710 # Check whether make has an 'include' directive that can support all
  711 # the idioms we need for our automatic dependency tracking code.
  712 AC_DEFUN([AM_MAKE_INCLUDE],
  713 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  714 cat > confinc.mk << 'END'
  715 am__doit:
  716 	@echo this is the am__doit target >confinc.out
  717 .PHONY: am__doit
  718 END
  719 am__include="#"
  720 am__quote=
  721 # BSD make does it like this.
  722 echo '.include "confinc.mk" # ignored' > confmf.BSD
  723 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  724 echo 'include confinc.mk # ignored' > confmf.GNU
  725 _am_result=no
  726 for s in GNU BSD; do
  727   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  728   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  729       ['0:this is the am__doit target'],
  730       [AS_CASE([$s],
  731           [BSD], [am__include='.include' am__quote='"'],
  732           [am__include='include' am__quote=''])])
  733   if test "$am__include" != "#"; then
  734     _am_result="yes ($s style)"
  735     break
  736   fi
  737 done
  738 rm -f confinc.* confmf.*
  739 AC_MSG_RESULT([${_am_result}])
  740 AC_SUBST([am__include])])
  741 AC_SUBST([am__quote])])
  742 
  743 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  744 
  745 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  746 #
  747 # This file is free software; the Free Software Foundation
  748 # gives unlimited permission to copy and/or distribute it,
  749 # with or without modifications, as long as this notice is preserved.
  750 
  751 # AM_MISSING_PROG(NAME, PROGRAM)
  752 # ------------------------------
  753 AC_DEFUN([AM_MISSING_PROG],
  754 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  755 $1=${$1-"${am_missing_run}$2"}
  756 AC_SUBST($1)])
  757 
  758 # AM_MISSING_HAS_RUN
  759 # ------------------
  760 # Define MISSING if not defined so far and test if it is modern enough.
  761 # If it is, set am_missing_run to use it, otherwise, to nothing.
  762 AC_DEFUN([AM_MISSING_HAS_RUN],
  763 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  764 AC_REQUIRE_AUX_FILE([missing])dnl
  765 if test x"${MISSING+set}" != xset; then
  766   MISSING="\${SHELL} '$am_aux_dir/missing'"
  767 fi
  768 # Use eval to expand $SHELL
  769 if eval "$MISSING --is-lightweight"; then
  770   am_missing_run="$MISSING "
  771 else
  772   am_missing_run=
  773   AC_MSG_WARN(['missing' script is too old or missing])
  774 fi
  775 ])
  776 
  777 # Helper functions for option handling.                     -*- Autoconf -*-
  778 
  779 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  780 #
  781 # This file is free software; the Free Software Foundation
  782 # gives unlimited permission to copy and/or distribute it,
  783 # with or without modifications, as long as this notice is preserved.
  784 
  785 # _AM_MANGLE_OPTION(NAME)
  786 # -----------------------
  787 AC_DEFUN([_AM_MANGLE_OPTION],
  788 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  789 
  790 # _AM_SET_OPTION(NAME)
  791 # --------------------
  792 # Set option NAME.  Presently that only means defining a flag for this option.
  793 AC_DEFUN([_AM_SET_OPTION],
  794 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  795 
  796 # _AM_SET_OPTIONS(OPTIONS)
  797 # ------------------------
  798 # OPTIONS is a space-separated list of Automake options.
  799 AC_DEFUN([_AM_SET_OPTIONS],
  800 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  801 
  802 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  803 # -------------------------------------------
  804 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  805 AC_DEFUN([_AM_IF_OPTION],
  806 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  807 
  808 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  809 #
  810 # This file is free software; the Free Software Foundation
  811 # gives unlimited permission to copy and/or distribute it,
  812 # with or without modifications, as long as this notice is preserved.
  813 
  814 # _AM_PROG_CC_C_O
  815 # ---------------
  816 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  817 # to automatically call this.
  818 AC_DEFUN([_AM_PROG_CC_C_O],
  819 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  820 AC_REQUIRE_AUX_FILE([compile])dnl
  821 AC_LANG_PUSH([C])dnl
  822 AC_CACHE_CHECK(
  823   [whether $CC understands -c and -o together],
  824   [am_cv_prog_cc_c_o],
  825   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  826   # Make sure it works both with $CC and with simple cc.
  827   # Following AC_PROG_CC_C_O, we do the test twice because some
  828   # compilers refuse to overwrite an existing .o file with -o,
  829   # though they will create one.
  830   am_cv_prog_cc_c_o=yes
  831   for am_i in 1 2; do
  832     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  833          && test -f conftest2.$ac_objext; then
  834       : OK
  835     else
  836       am_cv_prog_cc_c_o=no
  837       break
  838     fi
  839   done
  840   rm -f core conftest*
  841   unset am_i])
  842 if test "$am_cv_prog_cc_c_o" != yes; then
  843    # Losing compiler, so override with the script.
  844    # FIXME: It is wrong to rewrite CC.
  845    # But if we don't then we get into trouble of one sort or another.
  846    # A longer-term fix would be to have automake use am__CC in this case,
  847    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  848    CC="$am_aux_dir/compile $CC"
  849 fi
  850 AC_LANG_POP([C])])
  851 
  852 # For backward compatibility.
  853 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  854 
  855 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  856 #
  857 # This file is free software; the Free Software Foundation
  858 # gives unlimited permission to copy and/or distribute it,
  859 # with or without modifications, as long as this notice is preserved.
  860 
  861 # AM_RUN_LOG(COMMAND)
  862 # -------------------
  863 # Run COMMAND, save the exit status in ac_status, and log it.
  864 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  865 AC_DEFUN([AM_RUN_LOG],
  866 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  867    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  868    ac_status=$?
  869    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  870    (exit $ac_status); }])
  871 
  872 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  873 
  874 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  875 #
  876 # This file is free software; the Free Software Foundation
  877 # gives unlimited permission to copy and/or distribute it,
  878 # with or without modifications, as long as this notice is preserved.
  879 
  880 # AM_SANITY_CHECK
  881 # ---------------
  882 AC_DEFUN([AM_SANITY_CHECK],
  883 [AC_MSG_CHECKING([whether build environment is sane])
  884 # Reject unsafe characters in $srcdir or the absolute working directory
  885 # name.  Accept space and tab only in the latter.
  886 am_lf='
  887 '
  888 case `pwd` in
  889   *[[\\\"\#\$\&\'\`$am_lf]]*)
  890     AC_MSG_ERROR([unsafe absolute working directory name]);;
  891 esac
  892 case $srcdir in
  893   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  894     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  895 esac
  896 
  897 # Do 'set' in a subshell so we don't clobber the current shell's
  898 # arguments.  Must try -L first in case configure is actually a
  899 # symlink; some systems play weird games with the mod time of symlinks
  900 # (eg FreeBSD returns the mod time of the symlink's containing
  901 # directory).
  902 if (
  903    am_has_slept=no
  904    for am_try in 1 2; do
  905      echo "timestamp, slept: $am_has_slept" > conftest.file
  906      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  907      if test "$[*]" = "X"; then
  908 	# -L didn't work.
  909 	set X `ls -t "$srcdir/configure" conftest.file`
  910      fi
  911      if test "$[*]" != "X $srcdir/configure conftest.file" \
  912 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  913 
  914 	# If neither matched, then we have a broken ls.  This can happen
  915 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  916 	# broken ls alias from the environment.  This has actually
  917 	# happened.  Such a system could not be considered "sane".
  918 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  919   alias in your environment])
  920      fi
  921      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  922        break
  923      fi
  924      # Just in case.
  925      sleep 1
  926      am_has_slept=yes
  927    done
  928    test "$[2]" = conftest.file
  929    )
  930 then
  931    # Ok.
  932    :
  933 else
  934    AC_MSG_ERROR([newly created file is older than distributed files!
  935 Check your system clock])
  936 fi
  937 AC_MSG_RESULT([yes])
  938 # If we didn't sleep, we still need to ensure time stamps of config.status and
  939 # generated files are strictly newer.
  940 am_sleep_pid=
  941 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  942   ( sleep 1 ) &
  943   am_sleep_pid=$!
  944 fi
  945 AC_CONFIG_COMMANDS_PRE(
  946   [AC_MSG_CHECKING([that generated files are newer than configure])
  947    if test -n "$am_sleep_pid"; then
  948      # Hide warnings about reused PIDs.
  949      wait $am_sleep_pid 2>/dev/null
  950    fi
  951    AC_MSG_RESULT([done])])
  952 rm -f conftest.file
  953 ])
  954 
  955 # Copyright (C) 2009-2020 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_SILENT_RULES([DEFAULT])
  962 # --------------------------
  963 # Enable less verbose build rules; with the default set to DEFAULT
  964 # ("yes" being less verbose, "no" or empty being verbose).
  965 AC_DEFUN([AM_SILENT_RULES],
  966 [AC_ARG_ENABLE([silent-rules], [dnl
  967 AS_HELP_STRING(
  968   [--enable-silent-rules],
  969   [less verbose build output (undo: "make V=1")])
  970 AS_HELP_STRING(
  971   [--disable-silent-rules],
  972   [verbose build output (undo: "make V=0")])dnl
  973 ])
  974 case $enable_silent_rules in @%:@ (((
  975   yes) AM_DEFAULT_VERBOSITY=0;;
  976    no) AM_DEFAULT_VERBOSITY=1;;
  977     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  978 esac
  979 dnl
  980 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  981 dnl do not support nested variable expansions.
  982 dnl See automake bug#9928 and bug#10237.
  983 am_make=${MAKE-make}
  984 AC_CACHE_CHECK([whether $am_make supports nested variables],
  985    [am_cv_make_support_nested_variables],
  986    [if AS_ECHO([['TRUE=$(BAR$(V))
  987 BAR0=false
  988 BAR1=true
  989 V=1
  990 am__doit:
  991 	@$(TRUE)
  992 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  993   am_cv_make_support_nested_variables=yes
  994 else
  995   am_cv_make_support_nested_variables=no
  996 fi])
  997 if test $am_cv_make_support_nested_variables = yes; then
  998   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  999   AM_V='$(V)'
 1000   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1001 else
 1002   AM_V=$AM_DEFAULT_VERBOSITY
 1003   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1004 fi
 1005 AC_SUBST([AM_V])dnl
 1006 AM_SUBST_NOTMAKE([AM_V])dnl
 1007 AC_SUBST([AM_DEFAULT_V])dnl
 1008 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1009 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1010 AM_BACKSLASH='\'
 1011 AC_SUBST([AM_BACKSLASH])dnl
 1012 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1013 ])
 1014 
 1015 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 1016 #
 1017 # This file is free software; the Free Software Foundation
 1018 # gives unlimited permission to copy and/or distribute it,
 1019 # with or without modifications, as long as this notice is preserved.
 1020 
 1021 # AM_PROG_INSTALL_STRIP
 1022 # ---------------------
 1023 # One issue with vendor 'install' (even GNU) is that you can't
 1024 # specify the program used to strip binaries.  This is especially
 1025 # annoying in cross-compiling environments, where the build's strip
 1026 # is unlikely to handle the host's binaries.
 1027 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1028 # always use install-sh in "make install-strip", and initialize
 1029 # STRIPPROG with the value of the STRIP variable (set by the user).
 1030 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1031 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1032 # Installed binaries are usually stripped using 'strip' when the user
 1033 # run "make install-strip".  However 'strip' might not be the right
 1034 # tool to use in cross-compilation environments, therefore Automake
 1035 # will honor the 'STRIP' environment variable to overrule this program.
 1036 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1037 if test "$cross_compiling" != no; then
 1038   AC_CHECK_TOOL([STRIP], [strip], :)
 1039 fi
 1040 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1041 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1042 
 1043 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
 1044 #
 1045 # This file is free software; the Free Software Foundation
 1046 # gives unlimited permission to copy and/or distribute it,
 1047 # with or without modifications, as long as this notice is preserved.
 1048 
 1049 # _AM_SUBST_NOTMAKE(VARIABLE)
 1050 # ---------------------------
 1051 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1052 # This macro is traced by Automake.
 1053 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1054 
 1055 # AM_SUBST_NOTMAKE(VARIABLE)
 1056 # --------------------------
 1057 # Public sister of _AM_SUBST_NOTMAKE.
 1058 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1059 
 1060 # Check how to create a tarball.                            -*- Autoconf -*-
 1061 
 1062 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
 1063 #
 1064 # This file is free software; the Free Software Foundation
 1065 # gives unlimited permission to copy and/or distribute it,
 1066 # with or without modifications, as long as this notice is preserved.
 1067 
 1068 # _AM_PROG_TAR(FORMAT)
 1069 # --------------------
 1070 # Check how to create a tarball in format FORMAT.
 1071 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1072 #
 1073 # Substitute a variable $(am__tar) that is a command
 1074 # writing to stdout a FORMAT-tarball containing the directory
 1075 # $tardir.
 1076 #     tardir=directory && $(am__tar) > result.tar
 1077 #
 1078 # Substitute a variable $(am__untar) that extract such
 1079 # a tarball read from stdin.
 1080 #     $(am__untar) < result.tar
 1081 #
 1082 AC_DEFUN([_AM_PROG_TAR],
 1083 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1084 # in the wild :-(  We should find a proper way to deprecate it ...
 1085 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1086 
 1087 # We'll loop over all known methods to create a tar archive until one works.
 1088 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1089 
 1090 m4_if([$1], [v7],
 1091   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1092 
 1093   [m4_case([$1],
 1094     [ustar],
 1095      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1096       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1097       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1098       # and bug#13588).
 1099       am_max_uid=2097151 # 2^21 - 1
 1100       am_max_gid=$am_max_uid
 1101       # The $UID and $GID variables are not portable, so we need to resort
 1102       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1103       # below are definitely unexpected, so allow the users to see them
 1104       # (that is, avoid stderr redirection).
 1105       am_uid=`id -u || echo unknown`
 1106       am_gid=`id -g || echo unknown`
 1107       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1108       if test $am_uid -le $am_max_uid; then
 1109          AC_MSG_RESULT([yes])
 1110       else
 1111          AC_MSG_RESULT([no])
 1112          _am_tools=none
 1113       fi
 1114       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1115       if test $am_gid -le $am_max_gid; then
 1116          AC_MSG_RESULT([yes])
 1117       else
 1118         AC_MSG_RESULT([no])
 1119         _am_tools=none
 1120       fi],
 1121 
 1122   [pax],
 1123     [],
 1124 
 1125   [m4_fatal([Unknown tar format])])
 1126 
 1127   AC_MSG_CHECKING([how to create a $1 tar archive])
 1128 
 1129   # Go ahead even if we have the value already cached.  We do so because we
 1130   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1131   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1132 
 1133   for _am_tool in $_am_tools; do
 1134     case $_am_tool in
 1135     gnutar)
 1136       for _am_tar in tar gnutar gtar; do
 1137         AM_RUN_LOG([$_am_tar --version]) && break
 1138       done
 1139       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1140       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1141       am__untar="$_am_tar -xf -"
 1142       ;;
 1143     plaintar)
 1144       # Must skip GNU tar: if it does not support --format= it doesn't create
 1145       # ustar tarball either.
 1146       (tar --version) >/dev/null 2>&1 && continue
 1147       am__tar='tar chf - "$$tardir"'
 1148       am__tar_='tar chf - "$tardir"'
 1149       am__untar='tar xf -'
 1150       ;;
 1151     pax)
 1152       am__tar='pax -L -x $1 -w "$$tardir"'
 1153       am__tar_='pax -L -x $1 -w "$tardir"'
 1154       am__untar='pax -r'
 1155       ;;
 1156     cpio)
 1157       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1158       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1159       am__untar='cpio -i -H $1 -d'
 1160       ;;
 1161     none)
 1162       am__tar=false
 1163       am__tar_=false
 1164       am__untar=false
 1165       ;;
 1166     esac
 1167 
 1168     # If the value was cached, stop now.  We just wanted to have am__tar
 1169     # and am__untar set.
 1170     test -n "${am_cv_prog_tar_$1}" && break
 1171 
 1172     # tar/untar a dummy directory, and stop if the command works.
 1173     rm -rf conftest.dir
 1174     mkdir conftest.dir
 1175     echo GrepMe > conftest.dir/file
 1176     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1177     rm -rf conftest.dir
 1178     if test -s conftest.tar; then
 1179       AM_RUN_LOG([$am__untar <conftest.tar])
 1180       AM_RUN_LOG([cat conftest.dir/file])
 1181       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1182     fi
 1183   done
 1184   rm -rf conftest.dir
 1185 
 1186   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1187   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1188 
 1189 AC_SUBST([am__tar])
 1190 AC_SUBST([am__untar])
 1191 ]) # _AM_PROG_TAR
 1192 
 1193 m4_include([aclocal/acinclude.m4])
 1194 m4_include([aclocal/acx_pthread.m4])
 1195 m4_include([aclocal/ax_path_milter.m4])
 1196 m4_include([aclocal/dirfd.m4])
 1197 m4_include([aclocal/eilseq.m4])
 1198 m4_include([aclocal/eoverflow.m4])