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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($@)])])
   15 m4_ifndef([AC_AUTOCONF_VERSION],
   16   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
   17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
   18 [m4_warning([this file was generated for autoconf 2.69.
   19 You have another version of autoconf.  It may work, but is not guaranteed to.
   20 If you have problems, you may need to regenerate the build system entirely.
   21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
   22 
   23 # pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
   24 # serial 12 (pkg-config-0.29.2)
   25 
   26 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
   27 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
   28 dnl
   29 dnl This program is free software; you can redistribute it and/or modify
   30 dnl it under the terms of the GNU General Public License as published by
   31 dnl the Free Software Foundation; either version 2 of the License, or
   32 dnl (at your option) any later version.
   33 dnl
   34 dnl This program is distributed in the hope that it will be useful, but
   35 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
   36 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   37 dnl General Public License for more details.
   38 dnl
   39 dnl You should have received a copy of the GNU General Public License
   40 dnl along with this program; if not, write to the Free Software
   41 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   42 dnl 02111-1307, USA.
   43 dnl
   44 dnl As a special exception to the GNU General Public License, if you
   45 dnl distribute this file as part of a program that contains a
   46 dnl configuration script generated by Autoconf, you may include it under
   47 dnl the same distribution terms that you use for the rest of that
   48 dnl program.
   49 
   50 dnl PKG_PREREQ(MIN-VERSION)
   51 dnl -----------------------
   52 dnl Since: 0.29
   53 dnl
   54 dnl Verify that the version of the pkg-config macros are at least
   55 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
   56 dnl installed version of pkg-config, this checks the developer's version
   57 dnl of pkg.m4 when generating configure.
   58 dnl
   59 dnl To ensure that this macro is defined, also add:
   60 dnl m4_ifndef([PKG_PREREQ],
   61 dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
   62 dnl
   63 dnl See the "Since" comment for each macro you use to see what version
   64 dnl of the macros you require.
   65 m4_defun([PKG_PREREQ],
   66 [m4_define([PKG_MACROS_VERSION], [0.29.2])
   67 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
   68     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
   69 ])dnl PKG_PREREQ
   70 
   71 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
   72 dnl ----------------------------------
   73 dnl Since: 0.16
   74 dnl
   75 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
   76 dnl first found in the path. Checks that the version of pkg-config found
   77 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
   78 dnl used since that's the first version where most current features of
   79 dnl pkg-config existed.
   80 AC_DEFUN([PKG_PROG_PKG_CONFIG],
   81 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
   82 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
   83 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
   84 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
   85 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
   86 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
   87 
   88 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
   89 	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
   90 fi
   91 if test -n "$PKG_CONFIG"; then
   92 	_pkg_min_version=m4_default([$1], [0.9.0])
   93 	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
   94 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
   95 		AC_MSG_RESULT([yes])
   96 	else
   97 		AC_MSG_RESULT([no])
   98 		PKG_CONFIG=""
   99 	fi
  100 fi[]dnl
  101 ])dnl PKG_PROG_PKG_CONFIG
  102 
  103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  104 dnl -------------------------------------------------------------------
  105 dnl Since: 0.18
  106 dnl
  107 dnl Check to see whether a particular set of modules exists. Similar to
  108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
  109 dnl
  110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  111 dnl only at the first occurence in configure.ac, so if the first place
  112 dnl it's called might be skipped (such as if it is within an "if", you
  113 dnl have to call PKG_CHECK_EXISTS manually
  114 AC_DEFUN([PKG_CHECK_EXISTS],
  115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  116 if test -n "$PKG_CONFIG" && \
  117     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
  118   m4_default([$2], [:])
  119 m4_ifvaln([$3], [else
  120   $3])dnl
  121 fi])
  122 
  123 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
  124 dnl ---------------------------------------------
  125 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
  126 dnl pkg_failed based on the result.
  127 m4_define([_PKG_CONFIG],
  128 [if test -n "$$1"; then
  129     pkg_cv_[]$1="$$1"
  130  elif test -n "$PKG_CONFIG"; then
  131     PKG_CHECK_EXISTS([$3],
  132                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
  133 		      test "x$?" != "x0" && pkg_failed=yes ],
  134 		     [pkg_failed=yes])
  135  else
  136     pkg_failed=untried
  137 fi[]dnl
  138 ])dnl _PKG_CONFIG
  139 
  140 dnl _PKG_SHORT_ERRORS_SUPPORTED
  141 dnl ---------------------------
  142 dnl Internal check to see if pkg-config supports short errors.
  143 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
  144 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  145 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
  146         _pkg_short_errors_supported=yes
  147 else
  148         _pkg_short_errors_supported=no
  149 fi[]dnl
  150 ])dnl _PKG_SHORT_ERRORS_SUPPORTED
  151 
  152 
  153 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
  154 dnl   [ACTION-IF-NOT-FOUND])
  155 dnl --------------------------------------------------------------
  156 dnl Since: 0.4.0
  157 dnl
  158 dnl Note that if there is a possibility the first call to
  159 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
  160 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
  161 AC_DEFUN([PKG_CHECK_MODULES],
  162 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  163 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
  164 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
  165 
  166 pkg_failed=no
  167 AC_MSG_CHECKING([for $2])
  168 
  169 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
  170 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
  171 
  172 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
  173 and $1[]_LIBS to avoid the need to call pkg-config.
  174 See the pkg-config man page for more details.])
  175 
  176 if test $pkg_failed = yes; then
  177         AC_MSG_RESULT([no])
  178         _PKG_SHORT_ERRORS_SUPPORTED
  179         if test $_pkg_short_errors_supported = yes; then
  180 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
  181         else
  182 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
  183         fi
  184 	# Put the nasty error message in config.log where it belongs
  185 	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
  186 
  187 	m4_default([$4], [AC_MSG_ERROR(
  188 [Package requirements ($2) were not met:
  189 
  190 $$1_PKG_ERRORS
  191 
  192 Consider adjusting the PKG_CONFIG_PATH environment variable if you
  193 installed software in a non-standard prefix.
  194 
  195 _PKG_TEXT])[]dnl
  196         ])
  197 elif test $pkg_failed = untried; then
  198         AC_MSG_RESULT([no])
  199 	m4_default([$4], [AC_MSG_FAILURE(
  200 [The pkg-config script could not be found or is too old.  Make sure it
  201 is in your PATH or set the PKG_CONFIG environment variable to the full
  202 path to pkg-config.
  203 
  204 _PKG_TEXT
  205 
  206 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
  207         ])
  208 else
  209 	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
  210 	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
  211         AC_MSG_RESULT([yes])
  212 	$3
  213 fi[]dnl
  214 ])dnl PKG_CHECK_MODULES
  215 
  216 
  217 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
  218 dnl   [ACTION-IF-NOT-FOUND])
  219 dnl ---------------------------------------------------------------------
  220 dnl Since: 0.29
  221 dnl
  222 dnl Checks for existence of MODULES and gathers its build flags with
  223 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
  224 dnl and VARIABLE-PREFIX_LIBS from --libs.
  225 dnl
  226 dnl Note that if there is a possibility the first call to
  227 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
  228 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
  229 dnl configure.ac.
  230 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
  231 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  232 _save_PKG_CONFIG=$PKG_CONFIG
  233 PKG_CONFIG="$PKG_CONFIG --static"
  234 PKG_CHECK_MODULES($@)
  235 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
  236 ])dnl PKG_CHECK_MODULES_STATIC
  237 
  238 
  239 dnl PKG_INSTALLDIR([DIRECTORY])
  240 dnl -------------------------
  241 dnl Since: 0.27
  242 dnl
  243 dnl Substitutes the variable pkgconfigdir as the location where a module
  244 dnl should install pkg-config .pc files. By default the directory is
  245 dnl $libdir/pkgconfig, but the default can be changed by passing
  246 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
  247 dnl parameter.
  248 AC_DEFUN([PKG_INSTALLDIR],
  249 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
  250 m4_pushdef([pkg_description],
  251     [pkg-config installation directory @<:@]pkg_default[@:>@])
  252 AC_ARG_WITH([pkgconfigdir],
  253     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
  254     [with_pkgconfigdir=]pkg_default)
  255 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
  256 m4_popdef([pkg_default])
  257 m4_popdef([pkg_description])
  258 ])dnl PKG_INSTALLDIR
  259 
  260 
  261 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
  262 dnl --------------------------------
  263 dnl Since: 0.27
  264 dnl
  265 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
  266 dnl module should install arch-independent pkg-config .pc files. By
  267 dnl default the directory is $datadir/pkgconfig, but the default can be
  268 dnl changed by passing DIRECTORY. The user can override through the
  269 dnl --with-noarch-pkgconfigdir parameter.
  270 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
  271 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
  272 m4_pushdef([pkg_description],
  273     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
  274 AC_ARG_WITH([noarch-pkgconfigdir],
  275     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
  276     [with_noarch_pkgconfigdir=]pkg_default)
  277 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
  278 m4_popdef([pkg_default])
  279 m4_popdef([pkg_description])
  280 ])dnl PKG_NOARCH_INSTALLDIR
  281 
  282 
  283 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
  284 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  285 dnl -------------------------------------------
  286 dnl Since: 0.28
  287 dnl
  288 dnl Retrieves the value of the pkg-config variable for the given module.
  289 AC_DEFUN([PKG_CHECK_VAR],
  290 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  291 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
  292 
  293 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
  294 AS_VAR_COPY([$1], [pkg_cv_][$1])
  295 
  296 AS_VAR_IF([$1], [""], [$5], [$4])dnl
  297 ])dnl PKG_CHECK_VAR
  298 
  299 # Copyright (C) 2002-2020 Free Software Foundation, Inc.
  300 #
  301 # This file is free software; the Free Software Foundation
  302 # gives unlimited permission to copy and/or distribute it,
  303 # with or without modifications, as long as this notice is preserved.
  304 
  305 # AM_AUTOMAKE_VERSION(VERSION)
  306 # ----------------------------
  307 # Automake X.Y traces this macro to ensure aclocal.m4 has been
  308 # generated from the m4 files accompanying Automake X.Y.
  309 # (This private macro should not be called outside this file.)
  310 AC_DEFUN([AM_AUTOMAKE_VERSION],
  311 [am__api_version='1.16'
  312 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  313 dnl require some minimum version.  Point them to the right macro.
  314 m4_if([$1], [1.16.3], [],
  315       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
  316 ])
  317 
  318 # _AM_AUTOCONF_VERSION(VERSION)
  319 # -----------------------------
  320 # aclocal traces this macro to find the Autoconf version.
  321 # This is a private macro too.  Using m4_define simplifies
  322 # the logic in aclocal, which can simply ignore this definition.
  323 m4_define([_AM_AUTOCONF_VERSION], [])
  324 
  325 # AM_SET_CURRENT_AUTOMAKE_VERSION
  326 # -------------------------------
  327 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
  328 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
  329 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  330 [AM_AUTOMAKE_VERSION([1.16.3])dnl
  331 m4_ifndef([AC_AUTOCONF_VERSION],
  332   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  333 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  334 
  335 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  336 
  337 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  338 #
  339 # This file is free software; the Free Software Foundation
  340 # gives unlimited permission to copy and/or distribute it,
  341 # with or without modifications, as long as this notice is preserved.
  342 
  343 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  344 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
  345 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  346 #
  347 # Of course, Automake must honor this variable whenever it calls a
  348 # tool from the auxiliary directory.  The problem is that $srcdir (and
  349 # therefore $ac_aux_dir as well) can be either absolute or relative,
  350 # depending on how configure is run.  This is pretty annoying, since
  351 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  352 # source directory, any form will work fine, but in subdirectories a
  353 # relative path needs to be adjusted first.
  354 #
  355 # $ac_aux_dir/missing
  356 #    fails when called from a subdirectory if $ac_aux_dir is relative
  357 # $top_srcdir/$ac_aux_dir/missing
  358 #    fails if $ac_aux_dir is absolute,
  359 #    fails when called from a subdirectory in a VPATH build with
  360 #          a relative $ac_aux_dir
  361 #
  362 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  363 # are both prefixed by $srcdir.  In an in-source build this is usually
  364 # harmless because $srcdir is '.', but things will broke when you
  365 # start a VPATH build or use an absolute $srcdir.
  366 #
  367 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  368 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  369 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  370 # and then we would define $MISSING as
  371 #   MISSING="\${SHELL} $am_aux_dir/missing"
  372 # This will work as long as MISSING is not called from configure, because
  373 # unfortunately $(top_srcdir) has no meaning in configure.
  374 # However there are other variables, like CC, which are often used in
  375 # configure, and could therefore not use this "fixed" $ac_aux_dir.
  376 #
  377 # Another solution, used here, is to always expand $ac_aux_dir to an
  378 # absolute PATH.  The drawback is that using absolute paths prevent a
  379 # configured tree to be moved without reconfiguration.
  380 
  381 AC_DEFUN([AM_AUX_DIR_EXPAND],
  382 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  383 # Expand $ac_aux_dir to an absolute path.
  384 am_aux_dir=`cd "$ac_aux_dir" && pwd`
  385 ])
  386 
  387 # AM_CONDITIONAL                                            -*- Autoconf -*-
  388 
  389 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  390 #
  391 # This file is free software; the Free Software Foundation
  392 # gives unlimited permission to copy and/or distribute it,
  393 # with or without modifications, as long as this notice is preserved.
  394 
  395 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  396 # -------------------------------------
  397 # Define a conditional.
  398 AC_DEFUN([AM_CONDITIONAL],
  399 [AC_PREREQ([2.52])dnl
  400  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
  401        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  402 AC_SUBST([$1_TRUE])dnl
  403 AC_SUBST([$1_FALSE])dnl
  404 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  405 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  406 m4_define([_AM_COND_VALUE_$1], [$2])dnl
  407 if $2; then
  408   $1_TRUE=
  409   $1_FALSE='#'
  410 else
  411   $1_TRUE='#'
  412   $1_FALSE=
  413 fi
  414 AC_CONFIG_COMMANDS_PRE(
  415 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  416   AC_MSG_ERROR([[conditional "$1" was never defined.
  417 Usually this means the macro was only invoked conditionally.]])
  418 fi])])
  419 
  420 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  421 #
  422 # This file is free software; the Free Software Foundation
  423 # gives unlimited permission to copy and/or distribute it,
  424 # with or without modifications, as long as this notice is preserved.
  425 
  426 
  427 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  428 # written in clear, in which case automake, when reading aclocal.m4,
  429 # will think it sees a *use*, and therefore will trigger all it's
  430 # C support machinery.  Also note that it means that autoscan, seeing
  431 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  432 
  433 
  434 # _AM_DEPENDENCIES(NAME)
  435 # ----------------------
  436 # See how the compiler implements dependency checking.
  437 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  438 # We try a few techniques and use that to set a single cache variable.
  439 #
  440 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  441 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  442 # dependency, and given that the user is not expected to run this macro,
  443 # just rely on AC_PROG_CC.
  444 AC_DEFUN([_AM_DEPENDENCIES],
  445 [AC_REQUIRE([AM_SET_DEPDIR])dnl
  446 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  447 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  448 AC_REQUIRE([AM_DEP_TRACK])dnl
  449 
  450 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
  451       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
  452       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  453       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  454       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
  455       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
  456                     [depcc="$$1"   am_compiler_list=])
  457 
  458 AC_CACHE_CHECK([dependency style of $depcc],
  459                [am_cv_$1_dependencies_compiler_type],
  460 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  461   # We make a subdir and do the tests there.  Otherwise we can end up
  462   # making bogus files that we don't know about and never remove.  For
  463   # instance it was reported that on HP-UX the gcc test will end up
  464   # making a dummy file named 'D' -- because '-MD' means "put the output
  465   # in D".
  466   rm -rf conftest.dir
  467   mkdir conftest.dir
  468   # Copy depcomp to subdir because otherwise we won't find it if we're
  469   # using a relative directory.
  470   cp "$am_depcomp" conftest.dir
  471   cd conftest.dir
  472   # We will build objects and dependencies in a subdirectory because
  473   # it helps to detect inapplicable dependency modes.  For instance
  474   # both Tru64's cc and ICC support -MD to output dependencies as a
  475   # side effect of compilation, but ICC will put the dependencies in
  476   # the current directory while Tru64 will put them in the object
  477   # directory.
  478   mkdir sub
  479 
  480   am_cv_$1_dependencies_compiler_type=none
  481   if test "$am_compiler_list" = ""; then
  482      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  483   fi
  484   am__universal=false
  485   m4_case([$1], [CC],
  486     [case " $depcc " in #(
  487      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  488      esac],
  489     [CXX],
  490     [case " $depcc " in #(
  491      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  492      esac])
  493 
  494   for depmode in $am_compiler_list; do
  495     # Setup a source with many dependencies, because some compilers
  496     # like to wrap large dependency lists on column 80 (with \), and
  497     # we should not choose a depcomp mode which is confused by this.
  498     #
  499     # We need to recreate these files for each test, as the compiler may
  500     # overwrite some of them when testing with obscure command lines.
  501     # This happens at least with the AIX C compiler.
  502     : > sub/conftest.c
  503     for i in 1 2 3 4 5 6; do
  504       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  505       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  506       # Solaris 10 /bin/sh.
  507       echo '/* dummy */' > sub/conftst$i.h
  508     done
  509     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  510 
  511     # We check with '-c' and '-o' for the sake of the "dashmstdout"
  512     # mode.  It turns out that the SunPro C++ compiler does not properly
  513     # handle '-M -o', and we need to detect this.  Also, some Intel
  514     # versions had trouble with output in subdirs.
  515     am__obj=sub/conftest.${OBJEXT-o}
  516     am__minus_obj="-o $am__obj"
  517     case $depmode in
  518     gcc)
  519       # This depmode causes a compiler race in universal mode.
  520       test "$am__universal" = false || continue
  521       ;;
  522     nosideeffect)
  523       # After this tag, mechanisms are not by side-effect, so they'll
  524       # only be used when explicitly requested.
  525       if test "x$enable_dependency_tracking" = xyes; then
  526 	continue
  527       else
  528 	break
  529       fi
  530       ;;
  531     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  532       # This compiler won't grok '-c -o', but also, the minuso test has
  533       # not run yet.  These depmodes are late enough in the game, and
  534       # so weak that their functioning should not be impacted.
  535       am__obj=conftest.${OBJEXT-o}
  536       am__minus_obj=
  537       ;;
  538     none) break ;;
  539     esac
  540     if depmode=$depmode \
  541        source=sub/conftest.c object=$am__obj \
  542        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  543        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  544          >/dev/null 2>conftest.err &&
  545        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  546        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  547        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  548        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  549       # icc doesn't choke on unknown options, it will just issue warnings
  550       # or remarks (even with -Werror).  So we grep stderr for any message
  551       # that says an option was ignored or not supported.
  552       # When given -MP, icc 7.0 and 7.1 complain thusly:
  553       #   icc: Command line warning: ignoring option '-M'; no argument required
  554       # The diagnosis changed in icc 8.0:
  555       #   icc: Command line remark: option '-MP' not supported
  556       if (grep 'ignoring option' conftest.err ||
  557           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  558         am_cv_$1_dependencies_compiler_type=$depmode
  559         break
  560       fi
  561     fi
  562   done
  563 
  564   cd ..
  565   rm -rf conftest.dir
  566 else
  567   am_cv_$1_dependencies_compiler_type=none
  568 fi
  569 ])
  570 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  571 AM_CONDITIONAL([am__fastdep$1], [
  572   test "x$enable_dependency_tracking" != xno \
  573   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  574 ])
  575 
  576 
  577 # AM_SET_DEPDIR
  578 # -------------
  579 # Choose a directory name for dependency files.
  580 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  581 AC_DEFUN([AM_SET_DEPDIR],
  582 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  583 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  584 ])
  585 
  586 
  587 # AM_DEP_TRACK
  588 # ------------
  589 AC_DEFUN([AM_DEP_TRACK],
  590 [AC_ARG_ENABLE([dependency-tracking], [dnl
  591 AS_HELP_STRING(
  592   [--enable-dependency-tracking],
  593   [do not reject slow dependency extractors])
  594 AS_HELP_STRING(
  595   [--disable-dependency-tracking],
  596   [speeds up one-time build])])
  597 if test "x$enable_dependency_tracking" != xno; then
  598   am_depcomp="$ac_aux_dir/depcomp"
  599   AMDEPBACKSLASH='\'
  600   am__nodep='_no'
  601 fi
  602 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  603 AC_SUBST([AMDEPBACKSLASH])dnl
  604 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  605 AC_SUBST([am__nodep])dnl
  606 _AM_SUBST_NOTMAKE([am__nodep])dnl
  607 ])
  608 
  609 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  610 
  611 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  612 #
  613 # This file is free software; the Free Software Foundation
  614 # gives unlimited permission to copy and/or distribute it,
  615 # with or without modifications, as long as this notice is preserved.
  616 
  617 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  618 # ------------------------------
  619 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  620 [{
  621   # Older Autoconf quotes --file arguments for eval, but not when files
  622   # are listed without --file.  Let's play safe and only enable the eval
  623   # if we detect the quoting.
  624   # TODO: see whether this extra hack can be removed once we start
  625   # requiring Autoconf 2.70 or later.
  626   AS_CASE([$CONFIG_FILES],
  627           [*\'*], [eval set x "$CONFIG_FILES"],
  628           [*], [set x $CONFIG_FILES])
  629   shift
  630   # Used to flag and report bootstrapping failures.
  631   am_rc=0
  632   for am_mf
  633   do
  634     # Strip MF so we end up with the name of the file.
  635     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  636     # Check whether this is an Automake generated Makefile which includes
  637     # dependency-tracking related rules and includes.
  638     # Grep'ing the whole file directly is not great: AIX grep has a line
  639     # limit of 2048, but all sed's we know have understand at least 4000.
  640     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  641       || continue
  642     am_dirpart=`AS_DIRNAME(["$am_mf"])`
  643     am_filepart=`AS_BASENAME(["$am_mf"])`
  644     AM_RUN_LOG([cd "$am_dirpart" \
  645       && sed -e '/# am--include-marker/d' "$am_filepart" \
  646         | $MAKE -f - am--depfiles]) || am_rc=$?
  647   done
  648   if test $am_rc -ne 0; then
  649     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  650     for automatic dependency tracking.  If GNU make was not used, consider
  651     re-running the configure script with MAKE="gmake" (or whatever is
  652     necessary).  You can also try re-running configure with the
  653     '--disable-dependency-tracking' option to at least be able to build
  654     the package (albeit without support for automatic dependency tracking).])
  655   fi
  656   AS_UNSET([am_dirpart])
  657   AS_UNSET([am_filepart])
  658   AS_UNSET([am_mf])
  659   AS_UNSET([am_rc])
  660   rm -f conftest-deps.mk
  661 }
  662 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  663 
  664 
  665 # AM_OUTPUT_DEPENDENCY_COMMANDS
  666 # -----------------------------
  667 # This macro should only be invoked once -- use via AC_REQUIRE.
  668 #
  669 # This code is only required when automatic dependency tracking is enabled.
  670 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  671 # order to bootstrap the dependency handling code.
  672 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  673 [AC_CONFIG_COMMANDS([depfiles],
  674      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  675      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  676 
  677 # Do all the work for Automake.                             -*- Autoconf -*-
  678 
  679 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  680 #
  681 # This file is free software; the Free Software Foundation
  682 # gives unlimited permission to copy and/or distribute it,
  683 # with or without modifications, as long as this notice is preserved.
  684 
  685 # This macro actually does too much.  Some checks are only needed if
  686 # your package does certain things.  But this isn't really a big deal.
  687 
  688 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  689 m4_define([AC_PROG_CC],
  690 m4_defn([AC_PROG_CC])
  691 [_AM_PROG_CC_C_O
  692 ])
  693 
  694 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  695 # AM_INIT_AUTOMAKE([OPTIONS])
  696 # -----------------------------------------------
  697 # The call with PACKAGE and VERSION arguments is the old style
  698 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  699 # and VERSION should now be passed to AC_INIT and removed from
  700 # the call to AM_INIT_AUTOMAKE.
  701 # We support both call styles for the transition.  After
  702 # the next Automake release, Autoconf can make the AC_INIT
  703 # arguments mandatory, and then we can depend on a new Autoconf
  704 # release and drop the old call support.
  705 AC_DEFUN([AM_INIT_AUTOMAKE],
  706 [AC_PREREQ([2.65])dnl
  707 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  708 dnl the ones we care about.
  709 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  710 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  711 AC_REQUIRE([AC_PROG_INSTALL])dnl
  712 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  713   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  714   # is not polluted with repeated "-I."
  715   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  716   # test to see if srcdir already configured
  717   if test -f $srcdir/config.status; then
  718     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  719   fi
  720 fi
  721 
  722 # test whether we have cygpath
  723 if test -z "$CYGPATH_W"; then
  724   if (cygpath --version) >/dev/null 2>/dev/null; then
  725     CYGPATH_W='cygpath -w'
  726   else
  727     CYGPATH_W=echo
  728   fi
  729 fi
  730 AC_SUBST([CYGPATH_W])
  731 
  732 # Define the identity of the package.
  733 dnl Distinguish between old-style and new-style calls.
  734 m4_ifval([$2],
  735 [AC_DIAGNOSE([obsolete],
  736              [$0: two- and three-arguments forms are deprecated.])
  737 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  738  AC_SUBST([PACKAGE], [$1])dnl
  739  AC_SUBST([VERSION], [$2])],
  740 [_AM_SET_OPTIONS([$1])dnl
  741 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  742 m4_if(
  743   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  744   [ok:ok],,
  745   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  746  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  747  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  748 
  749 _AM_IF_OPTION([no-define],,
  750 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  751  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  752 
  753 # Some tools Automake needs.
  754 AC_REQUIRE([AM_SANITY_CHECK])dnl
  755 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  756 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  757 AM_MISSING_PROG([AUTOCONF], [autoconf])
  758 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  759 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  760 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  761 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  762 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  763 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  764 # For better backward compatibility.  To be removed once Automake 1.9.x
  765 # dies out for good.  For more background, see:
  766 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  767 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  768 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  769 # We need awk for the "check" target (and possibly the TAP driver).  The
  770 # system "awk" is bad on some platforms.
  771 AC_REQUIRE([AC_PROG_AWK])dnl
  772 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  773 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  774 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  775 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  776 			     [_AM_PROG_TAR([v7])])])
  777 _AM_IF_OPTION([no-dependencies],,
  778 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  779 		  [_AM_DEPENDENCIES([CC])],
  780 		  [m4_define([AC_PROG_CC],
  781 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  782 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  783 		  [_AM_DEPENDENCIES([CXX])],
  784 		  [m4_define([AC_PROG_CXX],
  785 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  786 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  787 		  [_AM_DEPENDENCIES([OBJC])],
  788 		  [m4_define([AC_PROG_OBJC],
  789 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  790 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  791 		  [_AM_DEPENDENCIES([OBJCXX])],
  792 		  [m4_define([AC_PROG_OBJCXX],
  793 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  794 ])
  795 AC_REQUIRE([AM_SILENT_RULES])dnl
  796 dnl The testsuite driver may need to know about EXEEXT, so add the
  797 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  798 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  799 AC_CONFIG_COMMANDS_PRE(dnl
  800 [m4_provide_if([_AM_COMPILER_EXEEXT],
  801   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  802 
  803 # POSIX will say in a future version that running "rm -f" with no argument
  804 # is OK; and we want to be able to make that assumption in our Makefile
  805 # recipes.  So use an aggressive probe to check that the usage we want is
  806 # actually supported "in the wild" to an acceptable degree.
  807 # See automake bug#10828.
  808 # To make any issue more visible, cause the running configure to be aborted
  809 # by default if the 'rm' program in use doesn't match our expectations; the
  810 # user can still override this though.
  811 if rm -f && rm -fr && rm -rf; then : OK; else
  812   cat >&2 <<'END'
  813 Oops!
  814 
  815 Your 'rm' program seems unable to run without file operands specified
  816 on the command line, even when the '-f' option is present.  This is contrary
  817 to the behaviour of most rm programs out there, and not conforming with
  818 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  819 
  820 Please tell bug-automake@gnu.org about your system, including the value
  821 of your $PATH and any error possibly output before this message.  This
  822 can help us improve future automake versions.
  823 
  824 END
  825   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  826     echo 'Configuration will proceed anyway, since you have set the' >&2
  827     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  828     echo >&2
  829   else
  830     cat >&2 <<'END'
  831 Aborting the configuration process, to ensure you take notice of the issue.
  832 
  833 You can download and install GNU coreutils to get an 'rm' implementation
  834 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  835 
  836 If you want to complete the configuration process using your problematic
  837 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  838 to "yes", and re-run configure.
  839 
  840 END
  841     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  842   fi
  843 fi
  844 dnl The trailing newline in this macro's definition is deliberate, for
  845 dnl backward compatibility and to allow trailing 'dnl'-style comments
  846 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  847 ])
  848 
  849 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  850 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  851 dnl mangled by Autoconf and run in a shell conditional statement.
  852 m4_define([_AC_COMPILER_EXEEXT],
  853 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  854 
  855 # When config.status generates a header, we must update the stamp-h file.
  856 # This file resides in the same directory as the config header
  857 # that is generated.  The stamp files are numbered to have different names.
  858 
  859 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  860 # loop where config.status creates the headers, so we can generate
  861 # our stamp files there.
  862 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  863 [# Compute $1's index in $config_headers.
  864 _am_arg=$1
  865 _am_stamp_count=1
  866 for _am_header in $config_headers :; do
  867   case $_am_header in
  868     $_am_arg | $_am_arg:* )
  869       break ;;
  870     * )
  871       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  872   esac
  873 done
  874 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  875 
  876 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  877 #
  878 # This file is free software; the Free Software Foundation
  879 # gives unlimited permission to copy and/or distribute it,
  880 # with or without modifications, as long as this notice is preserved.
  881 
  882 # AM_PROG_INSTALL_SH
  883 # ------------------
  884 # Define $install_sh.
  885 AC_DEFUN([AM_PROG_INSTALL_SH],
  886 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  887 if test x"${install_sh+set}" != xset; then
  888   case $am_aux_dir in
  889   *\ * | *\	*)
  890     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  891   *)
  892     install_sh="\${SHELL} $am_aux_dir/install-sh"
  893   esac
  894 fi
  895 AC_SUBST([install_sh])])
  896 
  897 # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  898 #
  899 # This file is free software; the Free Software Foundation
  900 # gives unlimited permission to copy and/or distribute it,
  901 # with or without modifications, as long as this notice is preserved.
  902 
  903 # Check whether the underlying file-system supports filenames
  904 # with a leading dot.  For instance MS-DOS doesn't.
  905 AC_DEFUN([AM_SET_LEADING_DOT],
  906 [rm -rf .tst 2>/dev/null
  907 mkdir .tst 2>/dev/null
  908 if test -d .tst; then
  909   am__leading_dot=.
  910 else
  911   am__leading_dot=_
  912 fi
  913 rmdir .tst 2>/dev/null
  914 AC_SUBST([am__leading_dot])])
  915 
  916 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  917 
  918 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  919 #
  920 # This file is free software; the Free Software Foundation
  921 # gives unlimited permission to copy and/or distribute it,
  922 # with or without modifications, as long as this notice is preserved.
  923 
  924 # AM_MAKE_INCLUDE()
  925 # -----------------
  926 # Check whether make has an 'include' directive that can support all
  927 # the idioms we need for our automatic dependency tracking code.
  928 AC_DEFUN([AM_MAKE_INCLUDE],
  929 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  930 cat > confinc.mk << 'END'
  931 am__doit:
  932 	@echo this is the am__doit target >confinc.out
  933 .PHONY: am__doit
  934 END
  935 am__include="#"
  936 am__quote=
  937 # BSD make does it like this.
  938 echo '.include "confinc.mk" # ignored' > confmf.BSD
  939 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  940 echo 'include confinc.mk # ignored' > confmf.GNU
  941 _am_result=no
  942 for s in GNU BSD; do
  943   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  944   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  945       ['0:this is the am__doit target'],
  946       [AS_CASE([$s],
  947           [BSD], [am__include='.include' am__quote='"'],
  948           [am__include='include' am__quote=''])])
  949   if test "$am__include" != "#"; then
  950     _am_result="yes ($s style)"
  951     break
  952   fi
  953 done
  954 rm -f confinc.* confmf.*
  955 AC_MSG_RESULT([${_am_result}])
  956 AC_SUBST([am__include])])
  957 AC_SUBST([am__quote])])
  958 
  959 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  960 
  961 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  962 #
  963 # This file is free software; the Free Software Foundation
  964 # gives unlimited permission to copy and/or distribute it,
  965 # with or without modifications, as long as this notice is preserved.
  966 
  967 # AM_MISSING_PROG(NAME, PROGRAM)
  968 # ------------------------------
  969 AC_DEFUN([AM_MISSING_PROG],
  970 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  971 $1=${$1-"${am_missing_run}$2"}
  972 AC_SUBST($1)])
  973 
  974 # AM_MISSING_HAS_RUN
  975 # ------------------
  976 # Define MISSING if not defined so far and test if it is modern enough.
  977 # If it is, set am_missing_run to use it, otherwise, to nothing.
  978 AC_DEFUN([AM_MISSING_HAS_RUN],
  979 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  980 AC_REQUIRE_AUX_FILE([missing])dnl
  981 if test x"${MISSING+set}" != xset; then
  982   MISSING="\${SHELL} '$am_aux_dir/missing'"
  983 fi
  984 # Use eval to expand $SHELL
  985 if eval "$MISSING --is-lightweight"; then
  986   am_missing_run="$MISSING "
  987 else
  988   am_missing_run=
  989   AC_MSG_WARN(['missing' script is too old or missing])
  990 fi
  991 ])
  992 
  993 # Helper functions for option handling.                     -*- Autoconf -*-
  994 
  995 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  996 #
  997 # This file is free software; the Free Software Foundation
  998 # gives unlimited permission to copy and/or distribute it,
  999 # with or without modifications, as long as this notice is preserved.
 1000 
 1001 # _AM_MANGLE_OPTION(NAME)
 1002 # -----------------------
 1003 AC_DEFUN([_AM_MANGLE_OPTION],
 1004 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 1005 
 1006 # _AM_SET_OPTION(NAME)
 1007 # --------------------
 1008 # Set option NAME.  Presently that only means defining a flag for this option.
 1009 AC_DEFUN([_AM_SET_OPTION],
 1010 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 1011 
 1012 # _AM_SET_OPTIONS(OPTIONS)
 1013 # ------------------------
 1014 # OPTIONS is a space-separated list of Automake options.
 1015 AC_DEFUN([_AM_SET_OPTIONS],
 1016 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 1017 
 1018 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 1019 # -------------------------------------------
 1020 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 1021 AC_DEFUN([_AM_IF_OPTION],
 1022 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 1023 
 1024 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
 1025 #
 1026 # This file is free software; the Free Software Foundation
 1027 # gives unlimited permission to copy and/or distribute it,
 1028 # with or without modifications, as long as this notice is preserved.
 1029 
 1030 # _AM_PROG_CC_C_O
 1031 # ---------------
 1032 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 1033 # to automatically call this.
 1034 AC_DEFUN([_AM_PROG_CC_C_O],
 1035 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 1036 AC_REQUIRE_AUX_FILE([compile])dnl
 1037 AC_LANG_PUSH([C])dnl
 1038 AC_CACHE_CHECK(
 1039   [whether $CC understands -c and -o together],
 1040   [am_cv_prog_cc_c_o],
 1041   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 1042   # Make sure it works both with $CC and with simple cc.
 1043   # Following AC_PROG_CC_C_O, we do the test twice because some
 1044   # compilers refuse to overwrite an existing .o file with -o,
 1045   # though they will create one.
 1046   am_cv_prog_cc_c_o=yes
 1047   for am_i in 1 2; do
 1048     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 1049          && test -f conftest2.$ac_objext; then
 1050       : OK
 1051     else
 1052       am_cv_prog_cc_c_o=no
 1053       break
 1054     fi
 1055   done
 1056   rm -f core conftest*
 1057   unset am_i])
 1058 if test "$am_cv_prog_cc_c_o" != yes; then
 1059    # Losing compiler, so override with the script.
 1060    # FIXME: It is wrong to rewrite CC.
 1061    # But if we don't then we get into trouble of one sort or another.
 1062    # A longer-term fix would be to have automake use am__CC in this case,
 1063    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 1064    CC="$am_aux_dir/compile $CC"
 1065 fi
 1066 AC_LANG_POP([C])])
 1067 
 1068 # For backward compatibility.
 1069 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 1070 
 1071 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 1072 #
 1073 # This file is free software; the Free Software Foundation
 1074 # gives unlimited permission to copy and/or distribute it,
 1075 # with or without modifications, as long as this notice is preserved.
 1076 
 1077 # AM_RUN_LOG(COMMAND)
 1078 # -------------------
 1079 # Run COMMAND, save the exit status in ac_status, and log it.
 1080 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 1081 AC_DEFUN([AM_RUN_LOG],
 1082 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 1083    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 1084    ac_status=$?
 1085    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 1086    (exit $ac_status); }])
 1087 
 1088 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 1089 
 1090 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
 1091 #
 1092 # This file is free software; the Free Software Foundation
 1093 # gives unlimited permission to copy and/or distribute it,
 1094 # with or without modifications, as long as this notice is preserved.
 1095 
 1096 # AM_SANITY_CHECK
 1097 # ---------------
 1098 AC_DEFUN([AM_SANITY_CHECK],
 1099 [AC_MSG_CHECKING([whether build environment is sane])
 1100 # Reject unsafe characters in $srcdir or the absolute working directory
 1101 # name.  Accept space and tab only in the latter.
 1102 am_lf='
 1103 '
 1104 case `pwd` in
 1105   *[[\\\"\#\$\&\'\`$am_lf]]*)
 1106     AC_MSG_ERROR([unsafe absolute working directory name]);;
 1107 esac
 1108 case $srcdir in
 1109   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
 1110     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 1111 esac
 1112 
 1113 # Do 'set' in a subshell so we don't clobber the current shell's
 1114 # arguments.  Must try -L first in case configure is actually a
 1115 # symlink; some systems play weird games with the mod time of symlinks
 1116 # (eg FreeBSD returns the mod time of the symlink's containing
 1117 # directory).
 1118 if (
 1119    am_has_slept=no
 1120    for am_try in 1 2; do
 1121      echo "timestamp, slept: $am_has_slept" > conftest.file
 1122      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 1123      if test "$[*]" = "X"; then
 1124 	# -L didn't work.
 1125 	set X `ls -t "$srcdir/configure" conftest.file`
 1126      fi
 1127      if test "$[*]" != "X $srcdir/configure conftest.file" \
 1128 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
 1129 
 1130 	# If neither matched, then we have a broken ls.  This can happen
 1131 	# if, for instance, CONFIG_SHELL is bash and it inherits a
 1132 	# broken ls alias from the environment.  This has actually
 1133 	# happened.  Such a system could not be considered "sane".
 1134 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 1135   alias in your environment])
 1136      fi
 1137      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 1138        break
 1139      fi
 1140      # Just in case.
 1141      sleep 1
 1142      am_has_slept=yes
 1143    done
 1144    test "$[2]" = conftest.file
 1145    )
 1146 then
 1147    # Ok.
 1148    :
 1149 else
 1150    AC_MSG_ERROR([newly created file is older than distributed files!
 1151 Check your system clock])
 1152 fi
 1153 AC_MSG_RESULT([yes])
 1154 # If we didn't sleep, we still need to ensure time stamps of config.status and
 1155 # generated files are strictly newer.
 1156 am_sleep_pid=
 1157 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 1158   ( sleep 1 ) &
 1159   am_sleep_pid=$!
 1160 fi
 1161 AC_CONFIG_COMMANDS_PRE(
 1162   [AC_MSG_CHECKING([that generated files are newer than configure])
 1163    if test -n "$am_sleep_pid"; then
 1164      # Hide warnings about reused PIDs.
 1165      wait $am_sleep_pid 2>/dev/null
 1166    fi
 1167    AC_MSG_RESULT([done])])
 1168 rm -f conftest.file
 1169 ])
 1170 
 1171 # Copyright (C) 2009-2020 Free Software Foundation, Inc.
 1172 #
 1173 # This file is free software; the Free Software Foundation
 1174 # gives unlimited permission to copy and/or distribute it,
 1175 # with or without modifications, as long as this notice is preserved.
 1176 
 1177 # AM_SILENT_RULES([DEFAULT])
 1178 # --------------------------
 1179 # Enable less verbose build rules; with the default set to DEFAULT
 1180 # ("yes" being less verbose, "no" or empty being verbose).
 1181 AC_DEFUN([AM_SILENT_RULES],
 1182 [AC_ARG_ENABLE([silent-rules], [dnl
 1183 AS_HELP_STRING(
 1184   [--enable-silent-rules],
 1185   [less verbose build output (undo: "make V=1")])
 1186 AS_HELP_STRING(
 1187   [--disable-silent-rules],
 1188   [verbose build output (undo: "make V=0")])dnl
 1189 ])
 1190 case $enable_silent_rules in @%:@ (((
 1191   yes) AM_DEFAULT_VERBOSITY=0;;
 1192    no) AM_DEFAULT_VERBOSITY=1;;
 1193     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 1194 esac
 1195 dnl
 1196 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 1197 dnl do not support nested variable expansions.
 1198 dnl See automake bug#9928 and bug#10237.
 1199 am_make=${MAKE-make}
 1200 AC_CACHE_CHECK([whether $am_make supports nested variables],
 1201    [am_cv_make_support_nested_variables],
 1202    [if AS_ECHO([['TRUE=$(BAR$(V))
 1203 BAR0=false
 1204 BAR1=true
 1205 V=1
 1206 am__doit:
 1207 	@$(TRUE)
 1208 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 1209   am_cv_make_support_nested_variables=yes
 1210 else
 1211   am_cv_make_support_nested_variables=no
 1212 fi])
 1213 if test $am_cv_make_support_nested_variables = yes; then
 1214   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 1215   AM_V='$(V)'
 1216   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1217 else
 1218   AM_V=$AM_DEFAULT_VERBOSITY
 1219   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1220 fi
 1221 AC_SUBST([AM_V])dnl
 1222 AM_SUBST_NOTMAKE([AM_V])dnl
 1223 AC_SUBST([AM_DEFAULT_V])dnl
 1224 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1225 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1226 AM_BACKSLASH='\'
 1227 AC_SUBST([AM_BACKSLASH])dnl
 1228 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1229 ])
 1230 
 1231 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 1232 #
 1233 # This file is free software; the Free Software Foundation
 1234 # gives unlimited permission to copy and/or distribute it,
 1235 # with or without modifications, as long as this notice is preserved.
 1236 
 1237 # AM_PROG_INSTALL_STRIP
 1238 # ---------------------
 1239 # One issue with vendor 'install' (even GNU) is that you can't
 1240 # specify the program used to strip binaries.  This is especially
 1241 # annoying in cross-compiling environments, where the build's strip
 1242 # is unlikely to handle the host's binaries.
 1243 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1244 # always use install-sh in "make install-strip", and initialize
 1245 # STRIPPROG with the value of the STRIP variable (set by the user).
 1246 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1247 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1248 # Installed binaries are usually stripped using 'strip' when the user
 1249 # run "make install-strip".  However 'strip' might not be the right
 1250 # tool to use in cross-compilation environments, therefore Automake
 1251 # will honor the 'STRIP' environment variable to overrule this program.
 1252 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1253 if test "$cross_compiling" != no; then
 1254   AC_CHECK_TOOL([STRIP], [strip], :)
 1255 fi
 1256 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1257 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1258 
 1259 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
 1260 #
 1261 # This file is free software; the Free Software Foundation
 1262 # gives unlimited permission to copy and/or distribute it,
 1263 # with or without modifications, as long as this notice is preserved.
 1264 
 1265 # _AM_SUBST_NOTMAKE(VARIABLE)
 1266 # ---------------------------
 1267 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1268 # This macro is traced by Automake.
 1269 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1270 
 1271 # AM_SUBST_NOTMAKE(VARIABLE)
 1272 # --------------------------
 1273 # Public sister of _AM_SUBST_NOTMAKE.
 1274 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1275 
 1276 # Check how to create a tarball.                            -*- Autoconf -*-
 1277 
 1278 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
 1279 #
 1280 # This file is free software; the Free Software Foundation
 1281 # gives unlimited permission to copy and/or distribute it,
 1282 # with or without modifications, as long as this notice is preserved.
 1283 
 1284 # _AM_PROG_TAR(FORMAT)
 1285 # --------------------
 1286 # Check how to create a tarball in format FORMAT.
 1287 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1288 #
 1289 # Substitute a variable $(am__tar) that is a command
 1290 # writing to stdout a FORMAT-tarball containing the directory
 1291 # $tardir.
 1292 #     tardir=directory && $(am__tar) > result.tar
 1293 #
 1294 # Substitute a variable $(am__untar) that extract such
 1295 # a tarball read from stdin.
 1296 #     $(am__untar) < result.tar
 1297 #
 1298 AC_DEFUN([_AM_PROG_TAR],
 1299 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1300 # in the wild :-(  We should find a proper way to deprecate it ...
 1301 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1302 
 1303 # We'll loop over all known methods to create a tar archive until one works.
 1304 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1305 
 1306 m4_if([$1], [v7],
 1307   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1308 
 1309   [m4_case([$1],
 1310     [ustar],
 1311      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1312       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1313       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1314       # and bug#13588).
 1315       am_max_uid=2097151 # 2^21 - 1
 1316       am_max_gid=$am_max_uid
 1317       # The $UID and $GID variables are not portable, so we need to resort
 1318       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1319       # below are definitely unexpected, so allow the users to see them
 1320       # (that is, avoid stderr redirection).
 1321       am_uid=`id -u || echo unknown`
 1322       am_gid=`id -g || echo unknown`
 1323       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1324       if test $am_uid -le $am_max_uid; then
 1325          AC_MSG_RESULT([yes])
 1326       else
 1327          AC_MSG_RESULT([no])
 1328          _am_tools=none
 1329       fi
 1330       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1331       if test $am_gid -le $am_max_gid; then
 1332          AC_MSG_RESULT([yes])
 1333       else
 1334         AC_MSG_RESULT([no])
 1335         _am_tools=none
 1336       fi],
 1337 
 1338   [pax],
 1339     [],
 1340 
 1341   [m4_fatal([Unknown tar format])])
 1342 
 1343   AC_MSG_CHECKING([how to create a $1 tar archive])
 1344 
 1345   # Go ahead even if we have the value already cached.  We do so because we
 1346   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1347   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1348 
 1349   for _am_tool in $_am_tools; do
 1350     case $_am_tool in
 1351     gnutar)
 1352       for _am_tar in tar gnutar gtar; do
 1353         AM_RUN_LOG([$_am_tar --version]) && break
 1354       done
 1355       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1356       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1357       am__untar="$_am_tar -xf -"
 1358       ;;
 1359     plaintar)
 1360       # Must skip GNU tar: if it does not support --format= it doesn't create
 1361       # ustar tarball either.
 1362       (tar --version) >/dev/null 2>&1 && continue
 1363       am__tar='tar chf - "$$tardir"'
 1364       am__tar_='tar chf - "$tardir"'
 1365       am__untar='tar xf -'
 1366       ;;
 1367     pax)
 1368       am__tar='pax -L -x $1 -w "$$tardir"'
 1369       am__tar_='pax -L -x $1 -w "$tardir"'
 1370       am__untar='pax -r'
 1371       ;;
 1372     cpio)
 1373       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1374       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1375       am__untar='cpio -i -H $1 -d'
 1376       ;;
 1377     none)
 1378       am__tar=false
 1379       am__tar_=false
 1380       am__untar=false
 1381       ;;
 1382     esac
 1383 
 1384     # If the value was cached, stop now.  We just wanted to have am__tar
 1385     # and am__untar set.
 1386     test -n "${am_cv_prog_tar_$1}" && break
 1387 
 1388     # tar/untar a dummy directory, and stop if the command works.
 1389     rm -rf conftest.dir
 1390     mkdir conftest.dir
 1391     echo GrepMe > conftest.dir/file
 1392     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1393     rm -rf conftest.dir
 1394     if test -s conftest.tar; then
 1395       AM_RUN_LOG([$am__untar <conftest.tar])
 1396       AM_RUN_LOG([cat conftest.dir/file])
 1397       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1398     fi
 1399   done
 1400   rm -rf conftest.dir
 1401 
 1402   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1403   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1404 
 1405 AC_SUBST([am__tar])
 1406 AC_SUBST([am__untar])
 1407 ]) # _AM_PROG_TAR
 1408