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    1 # generated automatically by aclocal 1.16.1 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
    4 
    5 # This file is free software; the Free Software Foundation
    6 # gives unlimited permission to copy and/or distribute it,
    7 # with or without modifications, as long as this notice is preserved.
    8 
    9 # This program is distributed in the hope that it will be useful,
   10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
   11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
   12 # PARTICULAR PURPOSE.
   13 
   14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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   22 
   23 # Copyright (C) 2002-2018 Free Software Foundation, Inc.
   24 #
   25 # This file is free software; the Free Software Foundation
   26 # gives unlimited permission to copy and/or distribute it,
   27 # with or without modifications, as long as this notice is preserved.
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   59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
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   61 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
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   63 # This file is free software; the Free Software Foundation
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  111 # AM_CONDITIONAL                                            -*- Autoconf -*-
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  113 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
  114 #
  115 # This file is free software; the Free Software Foundation
  116 # gives unlimited permission to copy and/or distribute it,
  117 # with or without modifications, as long as this notice is preserved.
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  119 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
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  143 
  144 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  145 #
  146 # This file is free software; the Free Software Foundation
  147 # gives unlimited permission to copy and/or distribute it,
  148 # with or without modifications, as long as this notice is preserved.
  149 
  150 
  151 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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  158 # _AM_DEPENDENCIES(NAME)
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  182 AC_CACHE_CHECK([dependency style of $depcc],
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  204   am_cv_$1_dependencies_compiler_type=none
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  218   for depmode in $am_compiler_list; do
  219     # Setup a source with many dependencies, because some compilers
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  222     #
  223     # We need to recreate these files for each test, as the compiler may
  224     # overwrite some of them when testing with obscure command lines.
  225     # This happens at least with the AIX C compiler.
  226     : > sub/conftest.c
  227     for i in 1 2 3 4 5 6; do
  228       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  229       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
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  235     # We check with '-c' and '-o' for the sake of the "dashmstdout"
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  250 	continue
  251       else
  252 	break
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  254       ;;
  255     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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  257       # not run yet.  These depmodes are late enough in the game, and
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  259       am__obj=conftest.${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
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  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
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  313 AC_DEFUN([AM_DEP_TRACK],
  314 [AC_ARG_ENABLE([dependency-tracking], [dnl
  315 AS_HELP_STRING(
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  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'
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  326 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  327 AC_SUBST([AMDEPBACKSLASH])dnl
  328 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  329 AC_SUBST([am__nodep])dnl
  330 _AM_SUBST_NOTMAKE([am__nodep])dnl
  331 ])
  332 
  333 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  334 
  335 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  336 #
  337 # This file is free software; the Free Software Foundation
  338 # gives unlimited permission to copy and/or distribute it,
  339 # with or without modifications, as long as this notice is preserved.
  340 
  341 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  342 # ------------------------------
  343 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  344 [{
  345   # Older Autoconf quotes --file arguments for eval, but not when files
  346   # are listed without --file.  Let's play safe and only enable the eval
  347   # if we detect the quoting.
  348   # TODO: see whether this extra hack can be removed once we start
  349   # requiring Autoconf 2.70 or later.
  350   AS_CASE([$CONFIG_FILES],
  351           [*\'*], [eval set x "$CONFIG_FILES"],
  352           [*], [set x $CONFIG_FILES])
  353   shift
  354   # Used to flag and report bootstrapping failures.
  355   am_rc=0
  356   for am_mf
  357   do
  358     # Strip MF so we end up with the name of the file.
  359     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  360     # Check whether this is an Automake generated Makefile which includes
  361     # dependency-tracking related rules and includes.
  362     # Grep'ing the whole file directly is not great: AIX grep has a line
  363     # limit of 2048, but all sed's we know have understand at least 4000.
  364     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  365       || continue
  366     am_dirpart=`AS_DIRNAME(["$am_mf"])`
  367     am_filepart=`AS_BASENAME(["$am_mf"])`
  368     AM_RUN_LOG([cd "$am_dirpart" \
  369       && sed -e '/# am--include-marker/d' "$am_filepart" \
  370         | $MAKE -f - am--depfiles]) || am_rc=$?
  371   done
  372   if test $am_rc -ne 0; then
  373     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  374     for automatic dependency tracking.  Try re-running configure with the
  375     '--disable-dependency-tracking' option to at least be able to build
  376     the package (albeit without support for automatic dependency tracking).])
  377   fi
  378   AS_UNSET([am_dirpart])
  379   AS_UNSET([am_filepart])
  380   AS_UNSET([am_mf])
  381   AS_UNSET([am_rc])
  382   rm -f conftest-deps.mk
  383 }
  384 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  385 
  386 
  387 # AM_OUTPUT_DEPENDENCY_COMMANDS
  388 # -----------------------------
  389 # This macro should only be invoked once -- use via AC_REQUIRE.
  390 #
  391 # This code is only required when automatic dependency tracking is enabled.
  392 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  393 # order to bootstrap the dependency handling code.
  394 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  395 [AC_CONFIG_COMMANDS([depfiles],
  396      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  397      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  398 
  399 # Do all the work for Automake.                             -*- Autoconf -*-
  400 
  401 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
  402 #
  403 # This file is free software; the Free Software Foundation
  404 # gives unlimited permission to copy and/or distribute it,
  405 # with or without modifications, as long as this notice is preserved.
  406 
  407 # This macro actually does too much.  Some checks are only needed if
  408 # your package does certain things.  But this isn't really a big deal.
  409 
  410 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  411 m4_define([AC_PROG_CC],
  412 m4_defn([AC_PROG_CC])
  413 [_AM_PROG_CC_C_O
  414 ])
  415 
  416 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  417 # AM_INIT_AUTOMAKE([OPTIONS])
  418 # -----------------------------------------------
  419 # The call with PACKAGE and VERSION arguments is the old style
  420 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  421 # and VERSION should now be passed to AC_INIT and removed from
  422 # the call to AM_INIT_AUTOMAKE.
  423 # We support both call styles for the transition.  After
  424 # the next Automake release, Autoconf can make the AC_INIT
  425 # arguments mandatory, and then we can depend on a new Autoconf
  426 # release and drop the old call support.
  427 AC_DEFUN([AM_INIT_AUTOMAKE],
  428 [AC_PREREQ([2.65])dnl
  429 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  430 dnl the ones we care about.
  431 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  432 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  433 AC_REQUIRE([AC_PROG_INSTALL])dnl
  434 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  435   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  436   # is not polluted with repeated "-I."
  437   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  438   # test to see if srcdir already configured
  439   if test -f $srcdir/config.status; then
  440     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  441   fi
  442 fi
  443 
  444 # test whether we have cygpath
  445 if test -z "$CYGPATH_W"; then
  446   if (cygpath --version) >/dev/null 2>/dev/null; then
  447     CYGPATH_W='cygpath -w'
  448   else
  449     CYGPATH_W=echo
  450   fi
  451 fi
  452 AC_SUBST([CYGPATH_W])
  453 
  454 # Define the identity of the package.
  455 dnl Distinguish between old-style and new-style calls.
  456 m4_ifval([$2],
  457 [AC_DIAGNOSE([obsolete],
  458              [$0: two- and three-arguments forms are deprecated.])
  459 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  460  AC_SUBST([PACKAGE], [$1])dnl
  461  AC_SUBST([VERSION], [$2])],
  462 [_AM_SET_OPTIONS([$1])dnl
  463 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  464 m4_if(
  465   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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  467   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  468  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  469  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  470 
  471 _AM_IF_OPTION([no-define],,
  472 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  473  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  474 
  475 # Some tools Automake needs.
  476 AC_REQUIRE([AM_SANITY_CHECK])dnl
  477 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  478 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  479 AM_MISSING_PROG([AUTOCONF], [autoconf])
  480 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  481 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  482 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  483 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  484 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  485 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  486 # For better backward compatibility.  To be removed once Automake 1.9.x
  487 # dies out for good.  For more background, see:
  488 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  489 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  490 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  491 # We need awk for the "check" target (and possibly the TAP driver).  The
  492 # system "awk" is bad on some platforms.
  493 AC_REQUIRE([AC_PROG_AWK])dnl
  494 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  495 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  496 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  497 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  498 			     [_AM_PROG_TAR([v7])])])
  499 _AM_IF_OPTION([no-dependencies],,
  500 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  501 		  [_AM_DEPENDENCIES([CC])],
  502 		  [m4_define([AC_PROG_CC],
  503 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  504 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  505 		  [_AM_DEPENDENCIES([CXX])],
  506 		  [m4_define([AC_PROG_CXX],
  507 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  508 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  509 		  [_AM_DEPENDENCIES([OBJC])],
  510 		  [m4_define([AC_PROG_OBJC],
  511 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  512 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  513 		  [_AM_DEPENDENCIES([OBJCXX])],
  514 		  [m4_define([AC_PROG_OBJCXX],
  515 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  516 ])
  517 AC_REQUIRE([AM_SILENT_RULES])dnl
  518 dnl The testsuite driver may need to know about EXEEXT, so add the
  519 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  520 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  521 AC_CONFIG_COMMANDS_PRE(dnl
  522 [m4_provide_if([_AM_COMPILER_EXEEXT],
  523   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  524 
  525 # POSIX will say in a future version that running "rm -f" with no argument
  526 # is OK; and we want to be able to make that assumption in our Makefile
  527 # recipes.  So use an aggressive probe to check that the usage we want is
  528 # actually supported "in the wild" to an acceptable degree.
  529 # See automake bug#10828.
  530 # To make any issue more visible, cause the running configure to be aborted
  531 # by default if the 'rm' program in use doesn't match our expectations; the
  532 # user can still override this though.
  533 if rm -f && rm -fr && rm -rf; then : OK; else
  534   cat >&2 <<'END'
  535 Oops!
  536 
  537 Your 'rm' program seems unable to run without file operands specified
  538 on the command line, even when the '-f' option is present.  This is contrary
  539 to the behaviour of most rm programs out there, and not conforming with
  540 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  541 
  542 Please tell bug-automake@gnu.org about your system, including the value
  543 of your $PATH and any error possibly output before this message.  This
  544 can help us improve future automake versions.
  545 
  546 END
  547   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  548     echo 'Configuration will proceed anyway, since you have set the' >&2
  549     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  550     echo >&2
  551   else
  552     cat >&2 <<'END'
  553 Aborting the configuration process, to ensure you take notice of the issue.
  554 
  555 You can download and install GNU coreutils to get an 'rm' implementation
  556 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  557 
  558 If you want to complete the configuration process using your problematic
  559 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  560 to "yes", and re-run configure.
  561 
  562 END
  563     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  564   fi
  565 fi
  566 dnl The trailing newline in this macro's definition is deliberate, for
  567 dnl backward compatibility and to allow trailing 'dnl'-style comments
  568 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  569 ])
  570 
  571 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  572 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  573 dnl mangled by Autoconf and run in a shell conditional statement.
  574 m4_define([_AC_COMPILER_EXEEXT],
  575 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  576 
  577 # When config.status generates a header, we must update the stamp-h file.
  578 # This file resides in the same directory as the config header
  579 # that is generated.  The stamp files are numbered to have different names.
  580 
  581 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  582 # loop where config.status creates the headers, so we can generate
  583 # our stamp files there.
  584 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  585 [# Compute $1's index in $config_headers.
  586 _am_arg=$1
  587 _am_stamp_count=1
  588 for _am_header in $config_headers :; do
  589   case $_am_header in
  590     $_am_arg | $_am_arg:* )
  591       break ;;
  592     * )
  593       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  594   esac
  595 done
  596 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  597 
  598 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  599 #
  600 # This file is free software; the Free Software Foundation
  601 # gives unlimited permission to copy and/or distribute it,
  602 # with or without modifications, as long as this notice is preserved.
  603 
  604 # AM_PROG_INSTALL_SH
  605 # ------------------
  606 # Define $install_sh.
  607 AC_DEFUN([AM_PROG_INSTALL_SH],
  608 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  609 if test x"${install_sh+set}" != xset; then
  610   case $am_aux_dir in
  611   *\ * | *\	*)
  612     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  613   *)
  614     install_sh="\${SHELL} $am_aux_dir/install-sh"
  615   esac
  616 fi
  617 AC_SUBST([install_sh])])
  618 
  619 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
  620 #
  621 # This file is free software; the Free Software Foundation
  622 # gives unlimited permission to copy and/or distribute it,
  623 # with or without modifications, as long as this notice is preserved.
  624 
  625 # Check whether the underlying file-system supports filenames
  626 # with a leading dot.  For instance MS-DOS doesn't.
  627 AC_DEFUN([AM_SET_LEADING_DOT],
  628 [rm -rf .tst 2>/dev/null
  629 mkdir .tst 2>/dev/null
  630 if test -d .tst; then
  631   am__leading_dot=.
  632 else
  633   am__leading_dot=_
  634 fi
  635 rmdir .tst 2>/dev/null
  636 AC_SUBST([am__leading_dot])])
  637 
  638 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  639 
  640 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  641 #
  642 # This file is free software; the Free Software Foundation
  643 # gives unlimited permission to copy and/or distribute it,
  644 # with or without modifications, as long as this notice is preserved.
  645 
  646 # AM_MAKE_INCLUDE()
  647 # -----------------
  648 # Check whether make has an 'include' directive that can support all
  649 # the idioms we need for our automatic dependency tracking code.
  650 AC_DEFUN([AM_MAKE_INCLUDE],
  651 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  652 cat > confinc.mk << 'END'
  653 am__doit:
  654 	@echo this is the am__doit target >confinc.out
  655 .PHONY: am__doit
  656 END
  657 am__include="#"
  658 am__quote=
  659 # BSD make does it like this.
  660 echo '.include "confinc.mk" # ignored' > confmf.BSD
  661 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  662 echo 'include confinc.mk # ignored' > confmf.GNU
  663 _am_result=no
  664 for s in GNU BSD; do
  665   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  666   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  667       ['0:this is the am__doit target'],
  668       [AS_CASE([$s],
  669           [BSD], [am__include='.include' am__quote='"'],
  670           [am__include='include' am__quote=''])])
  671   if test "$am__include" != "#"; then
  672     _am_result="yes ($s style)"
  673     break
  674   fi
  675 done
  676 rm -f confinc.* confmf.*
  677 AC_MSG_RESULT([${_am_result}])
  678 AC_SUBST([am__include])])
  679 AC_SUBST([am__quote])])
  680 
  681 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  682 
  683 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
  684 #
  685 # This file is free software; the Free Software Foundation
  686 # gives unlimited permission to copy and/or distribute it,
  687 # with or without modifications, as long as this notice is preserved.
  688 
  689 # AM_MISSING_PROG(NAME, PROGRAM)
  690 # ------------------------------
  691 AC_DEFUN([AM_MISSING_PROG],
  692 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  693 $1=${$1-"${am_missing_run}$2"}
  694 AC_SUBST($1)])
  695 
  696 # AM_MISSING_HAS_RUN
  697 # ------------------
  698 # Define MISSING if not defined so far and test if it is modern enough.
  699 # If it is, set am_missing_run to use it, otherwise, to nothing.
  700 AC_DEFUN([AM_MISSING_HAS_RUN],
  701 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  702 AC_REQUIRE_AUX_FILE([missing])dnl
  703 if test x"${MISSING+set}" != xset; then
  704   case $am_aux_dir in
  705   *\ * | *\	*)
  706     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  707   *)
  708     MISSING="\${SHELL} $am_aux_dir/missing" ;;
  709   esac
  710 fi
  711 # Use eval to expand $SHELL
  712 if eval "$MISSING --is-lightweight"; then
  713   am_missing_run="$MISSING "
  714 else
  715   am_missing_run=
  716   AC_MSG_WARN(['missing' script is too old or missing])
  717 fi
  718 ])
  719 
  720 # Helper functions for option handling.                     -*- Autoconf -*-
  721 
  722 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
  723 #
  724 # This file is free software; the Free Software Foundation
  725 # gives unlimited permission to copy and/or distribute it,
  726 # with or without modifications, as long as this notice is preserved.
  727 
  728 # _AM_MANGLE_OPTION(NAME)
  729 # -----------------------
  730 AC_DEFUN([_AM_MANGLE_OPTION],
  731 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  732 
  733 # _AM_SET_OPTION(NAME)
  734 # --------------------
  735 # Set option NAME.  Presently that only means defining a flag for this option.
  736 AC_DEFUN([_AM_SET_OPTION],
  737 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  738 
  739 # _AM_SET_OPTIONS(OPTIONS)
  740 # ------------------------
  741 # OPTIONS is a space-separated list of Automake options.
  742 AC_DEFUN([_AM_SET_OPTIONS],
  743 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  744 
  745 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  746 # -------------------------------------------
  747 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  748 AC_DEFUN([_AM_IF_OPTION],
  749 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  750 
  751 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  752 #
  753 # This file is free software; the Free Software Foundation
  754 # gives unlimited permission to copy and/or distribute it,
  755 # with or without modifications, as long as this notice is preserved.
  756 
  757 # _AM_PROG_CC_C_O
  758 # ---------------
  759 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  760 # to automatically call this.
  761 AC_DEFUN([_AM_PROG_CC_C_O],
  762 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  763 AC_REQUIRE_AUX_FILE([compile])dnl
  764 AC_LANG_PUSH([C])dnl
  765 AC_CACHE_CHECK(
  766   [whether $CC understands -c and -o together],
  767   [am_cv_prog_cc_c_o],
  768   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  769   # Make sure it works both with $CC and with simple cc.
  770   # Following AC_PROG_CC_C_O, we do the test twice because some
  771   # compilers refuse to overwrite an existing .o file with -o,
  772   # though they will create one.
  773   am_cv_prog_cc_c_o=yes
  774   for am_i in 1 2; do
  775     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  776          && test -f conftest2.$ac_objext; then
  777       : OK
  778     else
  779       am_cv_prog_cc_c_o=no
  780       break
  781     fi
  782   done
  783   rm -f core conftest*
  784   unset am_i])
  785 if test "$am_cv_prog_cc_c_o" != yes; then
  786    # Losing compiler, so override with the script.
  787    # FIXME: It is wrong to rewrite CC.
  788    # But if we don't then we get into trouble of one sort or another.
  789    # A longer-term fix would be to have automake use am__CC in this case,
  790    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  791    CC="$am_aux_dir/compile $CC"
  792 fi
  793 AC_LANG_POP([C])])
  794 
  795 # For backward compatibility.
  796 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  797 
  798 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
  799 #
  800 # This file is free software; the Free Software Foundation
  801 # gives unlimited permission to copy and/or distribute it,
  802 # with or without modifications, as long as this notice is preserved.
  803 
  804 
  805 # AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  806 # ---------------------------------------------------------------------------
  807 # Adds support for distributing Python modules and packages.  To
  808 # install modules, copy them to $(pythondir), using the python_PYTHON
  809 # automake variable.  To install a package with the same name as the
  810 # automake package, install to $(pkgpythondir), or use the
  811 # pkgpython_PYTHON automake variable.
  812 #
  813 # The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
  814 # locations to install python extension modules (shared libraries).
  815 # Another macro is required to find the appropriate flags to compile
  816 # extension modules.
  817 #
  818 # If your package is configured with a different prefix to python,
  819 # users will have to add the install directory to the PYTHONPATH
  820 # environment variable, or create a .pth file (see the python
  821 # documentation for details).
  822 #
  823 # If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
  824 # cause an error if the version of python installed on the system
  825 # doesn't meet the requirement.  MINIMUM-VERSION should consist of
  826 # numbers and dots only.
  827 AC_DEFUN([AM_PATH_PYTHON],
  828  [
  829   dnl Find a Python interpreter.  Python versions prior to 2.0 are not
  830   dnl supported. (2.0 was released on October 16, 2000).
  831   m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
  832 [python python2 python3 dnl
  833  python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
  834  python3.2 python3.1 python3.0 dnl
  835  python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
  836  python2.0])
  837 
  838   AC_ARG_VAR([PYTHON], [the Python interpreter])
  839 
  840   m4_if([$1],[],[
  841     dnl No version check is needed.
  842     # Find any Python interpreter.
  843     if test -z "$PYTHON"; then
  844       AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
  845     fi
  846     am_display_PYTHON=python
  847   ], [
  848     dnl A version check is needed.
  849     if test -n "$PYTHON"; then
  850       # If the user set $PYTHON, use it and don't search something else.
  851       AC_MSG_CHECKING([whether $PYTHON version is >= $1])
  852       AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
  853 			      [AC_MSG_RESULT([yes])],
  854 			      [AC_MSG_RESULT([no])
  855 			       AC_MSG_ERROR([Python interpreter is too old])])
  856       am_display_PYTHON=$PYTHON
  857     else
  858       # Otherwise, try each interpreter until we find one that satisfies
  859       # VERSION.
  860       AC_CACHE_CHECK([for a Python interpreter with version >= $1],
  861 	[am_cv_pathless_PYTHON],[
  862 	for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
  863 	  test "$am_cv_pathless_PYTHON" = none && break
  864 	  AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
  865 	done])
  866       # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
  867       if test "$am_cv_pathless_PYTHON" = none; then
  868 	PYTHON=:
  869       else
  870         AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
  871       fi
  872       am_display_PYTHON=$am_cv_pathless_PYTHON
  873     fi
  874   ])
  875 
  876   if test "$PYTHON" = :; then
  877   dnl Run any user-specified action, or abort.
  878     m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
  879   else
  880 
  881   dnl Query Python for its version number.  Getting [:3] seems to be
  882   dnl the best way to do this; it's what "site.py" does in the standard
  883   dnl library.
  884 
  885   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
  886     [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
  887   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
  888 
  889   dnl Use the values of $prefix and $exec_prefix for the corresponding
  890   dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX.  These are made
  891   dnl distinct variables so they can be overridden if need be.  However,
  892   dnl general consensus is that you shouldn't need this ability.
  893 
  894   AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
  895   AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
  896 
  897   dnl At times (like when building shared libraries) you may want
  898   dnl to know which OS platform Python thinks this is.
  899 
  900   AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
  901     [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
  902   AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
  903 
  904   # Just factor out some code duplication.
  905   am_python_setup_sysconfig="\
  906 import sys
  907 # Prefer sysconfig over distutils.sysconfig, for better compatibility
  908 # with python 3.x.  See automake bug#10227.
  909 try:
  910     import sysconfig
  911 except ImportError:
  912     can_use_sysconfig = 0
  913 else:
  914     can_use_sysconfig = 1
  915 # Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
  916 # <https://github.com/pypa/virtualenv/issues/118>
  917 try:
  918     from platform import python_implementation
  919     if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
  920         can_use_sysconfig = 0
  921 except ImportError:
  922     pass"
  923 
  924   dnl Set up 4 directories:
  925 
  926   dnl pythondir -- where to install python scripts.  This is the
  927   dnl   site-packages directory, not the python standard library
  928   dnl   directory like in previous automake betas.  This behavior
  929   dnl   is more consistent with lispdir.m4 for example.
  930   dnl Query distutils for this directory.
  931   AC_CACHE_CHECK([for $am_display_PYTHON script directory],
  932     [am_cv_python_pythondir],
  933     [if test "x$prefix" = xNONE
  934      then
  935        am_py_prefix=$ac_default_prefix
  936      else
  937        am_py_prefix=$prefix
  938      fi
  939      am_cv_python_pythondir=`$PYTHON -c "
  940 $am_python_setup_sysconfig
  941 if can_use_sysconfig:
  942     sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
  943 else:
  944     from distutils import sysconfig
  945     sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
  946 sys.stdout.write(sitedir)"`
  947      case $am_cv_python_pythondir in
  948      $am_py_prefix*)
  949        am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
  950        am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
  951        ;;
  952      *)
  953        case $am_py_prefix in
  954          /usr|/System*) ;;
  955          *)
  956 	  am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
  957 	  ;;
  958        esac
  959        ;;
  960      esac
  961     ])
  962   AC_SUBST([pythondir], [$am_cv_python_pythondir])
  963 
  964   dnl pkgpythondir -- $PACKAGE directory under pythondir.  Was
  965   dnl   PYTHON_SITE_PACKAGE in previous betas, but this naming is
  966   dnl   more consistent with the rest of automake.
  967 
  968   AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
  969 
  970   dnl pyexecdir -- directory for installing python extension modules
  971   dnl   (shared libraries)
  972   dnl Query distutils for this directory.
  973   AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
  974     [am_cv_python_pyexecdir],
  975     [if test "x$exec_prefix" = xNONE
  976      then
  977        am_py_exec_prefix=$am_py_prefix
  978      else
  979        am_py_exec_prefix=$exec_prefix
  980      fi
  981      am_cv_python_pyexecdir=`$PYTHON -c "
  982 $am_python_setup_sysconfig
  983 if can_use_sysconfig:
  984     sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
  985 else:
  986     from distutils import sysconfig
  987     sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
  988 sys.stdout.write(sitedir)"`
  989      case $am_cv_python_pyexecdir in
  990      $am_py_exec_prefix*)
  991        am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
  992        am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
  993        ;;
  994      *)
  995        case $am_py_exec_prefix in
  996          /usr|/System*) ;;
  997          *)
  998 	   am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
  999 	   ;;
 1000        esac
 1001        ;;
 1002      esac
 1003     ])
 1004   AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
 1005 
 1006   dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
 1007 
 1008   AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
 1009 
 1010   dnl Run any user-specified action.
 1011   $2
 1012   fi
 1013 
 1014 ])
 1015 
 1016 
 1017 # AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
 1018 # ---------------------------------------------------------------------------
 1019 # Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
 1020 # Run ACTION-IF-FALSE otherwise.
 1021 # This test uses sys.hexversion instead of the string equivalent (first
 1022 # word of sys.version), in order to cope with versions such as 2.2c1.
 1023 # This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
 1024 AC_DEFUN([AM_PYTHON_CHECK_VERSION],
 1025  [prog="import sys
 1026 # split strings by '.' and convert to numeric.  Append some zeros
 1027 # because we need at least 4 digits for the hex conversion.
 1028 # map returns an iterator in Python 3.0 and a list in 2.x
 1029 minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
 1030 minverhex = 0
 1031 # xrange is not present in Python 3.0 and range returns an iterator
 1032 for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
 1033 sys.exit(sys.hexversion < minverhex)"
 1034   AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
 1035 
 1036 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
 1037 #
 1038 # This file is free software; the Free Software Foundation
 1039 # gives unlimited permission to copy and/or distribute it,
 1040 # with or without modifications, as long as this notice is preserved.
 1041 
 1042 # AM_RUN_LOG(COMMAND)
 1043 # -------------------
 1044 # Run COMMAND, save the exit status in ac_status, and log it.
 1045 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 1046 AC_DEFUN([AM_RUN_LOG],
 1047 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 1048    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 1049    ac_status=$?
 1050    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 1051    (exit $ac_status); }])
 1052 
 1053 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 1054 
 1055 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
 1056 #
 1057 # This file is free software; the Free Software Foundation
 1058 # gives unlimited permission to copy and/or distribute it,
 1059 # with or without modifications, as long as this notice is preserved.
 1060 
 1061 # AM_SANITY_CHECK
 1062 # ---------------
 1063 AC_DEFUN([AM_SANITY_CHECK],
 1064 [AC_MSG_CHECKING([whether build environment is sane])
 1065 # Reject unsafe characters in $srcdir or the absolute working directory
 1066 # name.  Accept space and tab only in the latter.
 1067 am_lf='
 1068 '
 1069 case `pwd` in
 1070   *[[\\\"\#\$\&\'\`$am_lf]]*)
 1071     AC_MSG_ERROR([unsafe absolute working directory name]);;
 1072 esac
 1073 case $srcdir in
 1074   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
 1075     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 1076 esac
 1077 
 1078 # Do 'set' in a subshell so we don't clobber the current shell's
 1079 # arguments.  Must try -L first in case configure is actually a
 1080 # symlink; some systems play weird games with the mod time of symlinks
 1081 # (eg FreeBSD returns the mod time of the symlink's containing
 1082 # directory).
 1083 if (
 1084    am_has_slept=no
 1085    for am_try in 1 2; do
 1086      echo "timestamp, slept: $am_has_slept" > conftest.file
 1087      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 1088      if test "$[*]" = "X"; then
 1089 	# -L didn't work.
 1090 	set X `ls -t "$srcdir/configure" conftest.file`
 1091      fi
 1092      if test "$[*]" != "X $srcdir/configure conftest.file" \
 1093 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
 1094 
 1095 	# If neither matched, then we have a broken ls.  This can happen
 1096 	# if, for instance, CONFIG_SHELL is bash and it inherits a
 1097 	# broken ls alias from the environment.  This has actually
 1098 	# happened.  Such a system could not be considered "sane".
 1099 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 1100   alias in your environment])
 1101      fi
 1102      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 1103        break
 1104      fi
 1105      # Just in case.
 1106      sleep 1
 1107      am_has_slept=yes
 1108    done
 1109    test "$[2]" = conftest.file
 1110    )
 1111 then
 1112    # Ok.
 1113    :
 1114 else
 1115    AC_MSG_ERROR([newly created file is older than distributed files!
 1116 Check your system clock])
 1117 fi
 1118 AC_MSG_RESULT([yes])
 1119 # If we didn't sleep, we still need to ensure time stamps of config.status and
 1120 # generated files are strictly newer.
 1121 am_sleep_pid=
 1122 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 1123   ( sleep 1 ) &
 1124   am_sleep_pid=$!
 1125 fi
 1126 AC_CONFIG_COMMANDS_PRE(
 1127   [AC_MSG_CHECKING([that generated files are newer than configure])
 1128    if test -n "$am_sleep_pid"; then
 1129      # Hide warnings about reused PIDs.
 1130      wait $am_sleep_pid 2>/dev/null
 1131    fi
 1132    AC_MSG_RESULT([done])])
 1133 rm -f conftest.file
 1134 ])
 1135 
 1136 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
 1137 #
 1138 # This file is free software; the Free Software Foundation
 1139 # gives unlimited permission to copy and/or distribute it,
 1140 # with or without modifications, as long as this notice is preserved.
 1141 
 1142 # AM_SILENT_RULES([DEFAULT])
 1143 # --------------------------
 1144 # Enable less verbose build rules; with the default set to DEFAULT
 1145 # ("yes" being less verbose, "no" or empty being verbose).
 1146 AC_DEFUN([AM_SILENT_RULES],
 1147 [AC_ARG_ENABLE([silent-rules], [dnl
 1148 AS_HELP_STRING(
 1149   [--enable-silent-rules],
 1150   [less verbose build output (undo: "make V=1")])
 1151 AS_HELP_STRING(
 1152   [--disable-silent-rules],
 1153   [verbose build output (undo: "make V=0")])dnl
 1154 ])
 1155 case $enable_silent_rules in @%:@ (((
 1156   yes) AM_DEFAULT_VERBOSITY=0;;
 1157    no) AM_DEFAULT_VERBOSITY=1;;
 1158     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 1159 esac
 1160 dnl
 1161 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 1162 dnl do not support nested variable expansions.
 1163 dnl See automake bug#9928 and bug#10237.
 1164 am_make=${MAKE-make}
 1165 AC_CACHE_CHECK([whether $am_make supports nested variables],
 1166    [am_cv_make_support_nested_variables],
 1167    [if AS_ECHO([['TRUE=$(BAR$(V))
 1168 BAR0=false
 1169 BAR1=true
 1170 V=1
 1171 am__doit:
 1172 	@$(TRUE)
 1173 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 1174   am_cv_make_support_nested_variables=yes
 1175 else
 1176   am_cv_make_support_nested_variables=no
 1177 fi])
 1178 if test $am_cv_make_support_nested_variables = yes; then
 1179   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 1180   AM_V='$(V)'
 1181   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1182 else
 1183   AM_V=$AM_DEFAULT_VERBOSITY
 1184   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1185 fi
 1186 AC_SUBST([AM_V])dnl
 1187 AM_SUBST_NOTMAKE([AM_V])dnl
 1188 AC_SUBST([AM_DEFAULT_V])dnl
 1189 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1190 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1191 AM_BACKSLASH='\'
 1192 AC_SUBST([AM_BACKSLASH])dnl
 1193 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1194 ])
 1195 
 1196 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
 1197 #
 1198 # This file is free software; the Free Software Foundation
 1199 # gives unlimited permission to copy and/or distribute it,
 1200 # with or without modifications, as long as this notice is preserved.
 1201 
 1202 # AM_PROG_INSTALL_STRIP
 1203 # ---------------------
 1204 # One issue with vendor 'install' (even GNU) is that you can't
 1205 # specify the program used to strip binaries.  This is especially
 1206 # annoying in cross-compiling environments, where the build's strip
 1207 # is unlikely to handle the host's binaries.
 1208 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1209 # always use install-sh in "make install-strip", and initialize
 1210 # STRIPPROG with the value of the STRIP variable (set by the user).
 1211 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1212 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1213 # Installed binaries are usually stripped using 'strip' when the user
 1214 # run "make install-strip".  However 'strip' might not be the right
 1215 # tool to use in cross-compilation environments, therefore Automake
 1216 # will honor the 'STRIP' environment variable to overrule this program.
 1217 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1218 if test "$cross_compiling" != no; then
 1219   AC_CHECK_TOOL([STRIP], [strip], :)
 1220 fi
 1221 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1222 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1223 
 1224 # Copyright (C) 2006-2018 Free Software Foundation, Inc.
 1225 #
 1226 # This file is free software; the Free Software Foundation
 1227 # gives unlimited permission to copy and/or distribute it,
 1228 # with or without modifications, as long as this notice is preserved.
 1229 
 1230 # _AM_SUBST_NOTMAKE(VARIABLE)
 1231 # ---------------------------
 1232 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1233 # This macro is traced by Automake.
 1234 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1235 
 1236 # AM_SUBST_NOTMAKE(VARIABLE)
 1237 # --------------------------
 1238 # Public sister of _AM_SUBST_NOTMAKE.
 1239 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1240 
 1241 # Check how to create a tarball.                            -*- Autoconf -*-
 1242 
 1243 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
 1244 #
 1245 # This file is free software; the Free Software Foundation
 1246 # gives unlimited permission to copy and/or distribute it,
 1247 # with or without modifications, as long as this notice is preserved.
 1248 
 1249 # _AM_PROG_TAR(FORMAT)
 1250 # --------------------
 1251 # Check how to create a tarball in format FORMAT.
 1252 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1253 #
 1254 # Substitute a variable $(am__tar) that is a command
 1255 # writing to stdout a FORMAT-tarball containing the directory
 1256 # $tardir.
 1257 #     tardir=directory && $(am__tar) > result.tar
 1258 #
 1259 # Substitute a variable $(am__untar) that extract such
 1260 # a tarball read from stdin.
 1261 #     $(am__untar) < result.tar
 1262 #
 1263 AC_DEFUN([_AM_PROG_TAR],
 1264 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1265 # in the wild :-(  We should find a proper way to deprecate it ...
 1266 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1267 
 1268 # We'll loop over all known methods to create a tar archive until one works.
 1269 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1270 
 1271 m4_if([$1], [v7],
 1272   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1273 
 1274   [m4_case([$1],
 1275     [ustar],
 1276      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1277       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1278       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1279       # and bug#13588).
 1280       am_max_uid=2097151 # 2^21 - 1
 1281       am_max_gid=$am_max_uid
 1282       # The $UID and $GID variables are not portable, so we need to resort
 1283       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1284       # below are definitely unexpected, so allow the users to see them
 1285       # (that is, avoid stderr redirection).
 1286       am_uid=`id -u || echo unknown`
 1287       am_gid=`id -g || echo unknown`
 1288       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1289       if test $am_uid -le $am_max_uid; then
 1290          AC_MSG_RESULT([yes])
 1291       else
 1292          AC_MSG_RESULT([no])
 1293          _am_tools=none
 1294       fi
 1295       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1296       if test $am_gid -le $am_max_gid; then
 1297          AC_MSG_RESULT([yes])
 1298       else
 1299         AC_MSG_RESULT([no])
 1300         _am_tools=none
 1301       fi],
 1302 
 1303   [pax],
 1304     [],
 1305 
 1306   [m4_fatal([Unknown tar format])])
 1307 
 1308   AC_MSG_CHECKING([how to create a $1 tar archive])
 1309 
 1310   # Go ahead even if we have the value already cached.  We do so because we
 1311   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1312   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1313 
 1314   for _am_tool in $_am_tools; do
 1315     case $_am_tool in
 1316     gnutar)
 1317       for _am_tar in tar gnutar gtar; do
 1318         AM_RUN_LOG([$_am_tar --version]) && break
 1319       done
 1320       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1321       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1322       am__untar="$_am_tar -xf -"
 1323       ;;
 1324     plaintar)
 1325       # Must skip GNU tar: if it does not support --format= it doesn't create
 1326       # ustar tarball either.
 1327       (tar --version) >/dev/null 2>&1 && continue
 1328       am__tar='tar chf - "$$tardir"'
 1329       am__tar_='tar chf - "$tardir"'
 1330       am__untar='tar xf -'
 1331       ;;
 1332     pax)
 1333       am__tar='pax -L -x $1 -w "$$tardir"'
 1334       am__tar_='pax -L -x $1 -w "$tardir"'
 1335       am__untar='pax -r'
 1336       ;;
 1337     cpio)
 1338       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1339       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1340       am__untar='cpio -i -H $1 -d'
 1341       ;;
 1342     none)
 1343       am__tar=false
 1344       am__tar_=false
 1345       am__untar=false
 1346       ;;
 1347     esac
 1348 
 1349     # If the value was cached, stop now.  We just wanted to have am__tar
 1350     # and am__untar set.
 1351     test -n "${am_cv_prog_tar_$1}" && break
 1352 
 1353     # tar/untar a dummy directory, and stop if the command works.
 1354     rm -rf conftest.dir
 1355     mkdir conftest.dir
 1356     echo GrepMe > conftest.dir/file
 1357     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1358     rm -rf conftest.dir
 1359     if test -s conftest.tar; then
 1360       AM_RUN_LOG([$am__untar <conftest.tar])
 1361       AM_RUN_LOG([cat conftest.dir/file])
 1362       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1363     fi
 1364   done
 1365   rm -rf conftest.dir
 1366 
 1367   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1368   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1369 
 1370 AC_SUBST([am__tar])
 1371 AC_SUBST([am__untar])
 1372 ]) # _AM_PROG_TAR
 1373 
 1374 m4_include([m4/libtool.m4])
 1375 m4_include([m4/ltoptions.m4])
 1376 m4_include([m4/ltsugar.m4])
 1377 m4_include([m4/ltversion.m4])
 1378 m4_include([m4/lt~obsolete.m4])