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    1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2021 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]), [2.71],,
   18 [m4_warning([this file was generated for autoconf 2.71.
   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) 2002-2021 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], [1.16.5], [],
  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([1.16.5])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) 2001-2021 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) 1997-2021 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) 1999-2021 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$enable_dependency_tracking" != xno])
  603 AC_SUBST([AMDEPBACKSLASH])dnl
  604 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  605 AC_SUBST([am__nodep])dnl
  606 _AM_SUBST_NOTMAKE([am__nodep])dnl
  607 ])
  608 
  609 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  610 
  611 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
  612 #
  613 # This file is free software; the Free Software Foundation
  614 # gives unlimited permission to copy and/or distribute it,
  615 # with or without modifications, as long as this notice is preserved.
  616 
  617 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  618 # ------------------------------
  619 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  620 [{
  621   # Older Autoconf quotes --file arguments for eval, but not when files
  622   # are listed without --file.  Let's play safe and only enable the eval
  623   # if we detect the quoting.
  624   # TODO: see whether this extra hack can be removed once we start
  625   # requiring Autoconf 2.70 or later.
  626   AS_CASE([$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) 1996-2021 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 m4_ifdef([_$0_ALREADY_INIT],
  708   [m4_fatal([$0 expanded multiple times
  709 ]m4_defn([_$0_ALREADY_INIT]))],
  710   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
  711 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  712 dnl the ones we care about.
  713 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  714 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  715 AC_REQUIRE([AC_PROG_INSTALL])dnl
  716 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  717   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  718   # is not polluted with repeated "-I."
  719   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  720   # test to see if srcdir already configured
  721   if test -f $srcdir/config.status; then
  722     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  723   fi
  724 fi
  725 
  726 # test whether we have cygpath
  727 if test -z "$CYGPATH_W"; then
  728   if (cygpath --version) >/dev/null 2>/dev/null; then
  729     CYGPATH_W='cygpath -w'
  730   else
  731     CYGPATH_W=echo
  732   fi
  733 fi
  734 AC_SUBST([CYGPATH_W])
  735 
  736 # Define the identity of the package.
  737 dnl Distinguish between old-style and new-style calls.
  738 m4_ifval([$2],
  739 [AC_DIAGNOSE([obsolete],
  740              [$0: two- and three-arguments forms are deprecated.])
  741 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  742  AC_SUBST([PACKAGE], [$1])dnl
  743  AC_SUBST([VERSION], [$2])],
  744 [_AM_SET_OPTIONS([$1])dnl
  745 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  746 m4_if(
  747   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
  748   [ok:ok],,
  749   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  750  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  751  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  752 
  753 _AM_IF_OPTION([no-define],,
  754 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  755  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  756 
  757 # Some tools Automake needs.
  758 AC_REQUIRE([AM_SANITY_CHECK])dnl
  759 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  760 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  761 AM_MISSING_PROG([AUTOCONF], [autoconf])
  762 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  763 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  764 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  765 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  766 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  767 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  768 # For better backward compatibility.  To be removed once Automake 1.9.x
  769 # dies out for good.  For more background, see:
  770 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  771 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  772 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  773 # We need awk for the "check" target (and possibly the TAP driver).  The
  774 # system "awk" is bad on some platforms.
  775 AC_REQUIRE([AC_PROG_AWK])dnl
  776 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  777 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  778 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  779 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  780 			     [_AM_PROG_TAR([v7])])])
  781 _AM_IF_OPTION([no-dependencies],,
  782 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  783 		  [_AM_DEPENDENCIES([CC])],
  784 		  [m4_define([AC_PROG_CC],
  785 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  786 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  787 		  [_AM_DEPENDENCIES([CXX])],
  788 		  [m4_define([AC_PROG_CXX],
  789 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  790 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  791 		  [_AM_DEPENDENCIES([OBJC])],
  792 		  [m4_define([AC_PROG_OBJC],
  793 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  794 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  795 		  [_AM_DEPENDENCIES([OBJCXX])],
  796 		  [m4_define([AC_PROG_OBJCXX],
  797 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  798 ])
  799 # Variables for tags utilities; see am/tags.am
  800 if test -z "$CTAGS"; then
  801   CTAGS=ctags
  802 fi
  803 AC_SUBST([CTAGS])
  804 if test -z "$ETAGS"; then
  805   ETAGS=etags
  806 fi
  807 AC_SUBST([ETAGS])
  808 if test -z "$CSCOPE"; then
  809   CSCOPE=cscope
  810 fi
  811 AC_SUBST([CSCOPE])
  812 
  813 AC_REQUIRE([AM_SILENT_RULES])dnl
  814 dnl The testsuite driver may need to know about EXEEXT, so add the
  815 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  816 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  817 AC_CONFIG_COMMANDS_PRE(dnl
  818 [m4_provide_if([_AM_COMPILER_EXEEXT],
  819   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  820 
  821 # POSIX will say in a future version that running "rm -f" with no argument
  822 # is OK; and we want to be able to make that assumption in our Makefile
  823 # recipes.  So use an aggressive probe to check that the usage we want is
  824 # actually supported "in the wild" to an acceptable degree.
  825 # See automake bug#10828.
  826 # To make any issue more visible, cause the running configure to be aborted
  827 # by default if the 'rm' program in use doesn't match our expectations; the
  828 # user can still override this though.
  829 if rm -f && rm -fr && rm -rf; then : OK; else
  830   cat >&2 <<'END'
  831 Oops!
  832 
  833 Your 'rm' program seems unable to run without file operands specified
  834 on the command line, even when the '-f' option is present.  This is contrary
  835 to the behaviour of most rm programs out there, and not conforming with
  836 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  837 
  838 Please tell bug-automake@gnu.org about your system, including the value
  839 of your $PATH and any error possibly output before this message.  This
  840 can help us improve future automake versions.
  841 
  842 END
  843   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  844     echo 'Configuration will proceed anyway, since you have set the' >&2
  845     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  846     echo >&2
  847   else
  848     cat >&2 <<'END'
  849 Aborting the configuration process, to ensure you take notice of the issue.
  850 
  851 You can download and install GNU coreutils to get an 'rm' implementation
  852 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  853 
  854 If you want to complete the configuration process using your problematic
  855 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  856 to "yes", and re-run configure.
  857 
  858 END
  859     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  860   fi
  861 fi
  862 dnl The trailing newline in this macro's definition is deliberate, for
  863 dnl backward compatibility and to allow trailing 'dnl'-style comments
  864 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  865 ])
  866 
  867 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  868 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  869 dnl mangled by Autoconf and run in a shell conditional statement.
  870 m4_define([_AC_COMPILER_EXEEXT],
  871 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  872 
  873 # When config.status generates a header, we must update the stamp-h file.
  874 # This file resides in the same directory as the config header
  875 # that is generated.  The stamp files are numbered to have different names.
  876 
  877 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  878 # loop where config.status creates the headers, so we can generate
  879 # our stamp files there.
  880 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  881 [# Compute $1's index in $config_headers.
  882 _am_arg=$1
  883 _am_stamp_count=1
  884 for _am_header in $config_headers :; do
  885   case $_am_header in
  886     $_am_arg | $_am_arg:* )
  887       break ;;
  888     * )
  889       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  890   esac
  891 done
  892 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  893 
  894 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  895 #
  896 # This file is free software; the Free Software Foundation
  897 # gives unlimited permission to copy and/or distribute it,
  898 # with or without modifications, as long as this notice is preserved.
  899 
  900 # AM_PROG_INSTALL_SH
  901 # ------------------
  902 # Define $install_sh.
  903 AC_DEFUN([AM_PROG_INSTALL_SH],
  904 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  905 if test x"${install_sh+set}" != xset; then
  906   case $am_aux_dir in
  907   *\ * | *\	*)
  908     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  909   *)
  910     install_sh="\${SHELL} $am_aux_dir/install-sh"
  911   esac
  912 fi
  913 AC_SUBST([install_sh])])
  914 
  915 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
  916 #
  917 # This file is free software; the Free Software Foundation
  918 # gives unlimited permission to copy and/or distribute it,
  919 # with or without modifications, as long as this notice is preserved.
  920 
  921 # Check whether the underlying file-system supports filenames
  922 # with a leading dot.  For instance MS-DOS doesn't.
  923 AC_DEFUN([AM_SET_LEADING_DOT],
  924 [rm -rf .tst 2>/dev/null
  925 mkdir .tst 2>/dev/null
  926 if test -d .tst; then
  927   am__leading_dot=.
  928 else
  929   am__leading_dot=_
  930 fi
  931 rmdir .tst 2>/dev/null
  932 AC_SUBST([am__leading_dot])])
  933 
  934 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  935 
  936 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  937 #
  938 # This file is free software; the Free Software Foundation
  939 # gives unlimited permission to copy and/or distribute it,
  940 # with or without modifications, as long as this notice is preserved.
  941 
  942 # AM_MAKE_INCLUDE()
  943 # -----------------
  944 # Check whether make has an 'include' directive that can support all
  945 # the idioms we need for our automatic dependency tracking code.
  946 AC_DEFUN([AM_MAKE_INCLUDE],
  947 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  948 cat > confinc.mk << 'END'
  949 am__doit:
  950 	@echo this is the am__doit target >confinc.out
  951 .PHONY: am__doit
  952 END
  953 am__include="#"
  954 am__quote=
  955 # BSD make does it like this.
  956 echo '.include "confinc.mk" # ignored' > confmf.BSD
  957 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  958 echo 'include confinc.mk # ignored' > confmf.GNU
  959 _am_result=no
  960 for s in GNU BSD; do
  961   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  962   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  963       ['0:this is the am__doit target'],
  964       [AS_CASE([$s],
  965           [BSD], [am__include='.include' am__quote='"'],
  966           [am__include='include' am__quote=''])])
  967   if test "$am__include" != "#"; then
  968     _am_result="yes ($s style)"
  969     break
  970   fi
  971 done
  972 rm -f confinc.* confmf.*
  973 AC_MSG_RESULT([${_am_result}])
  974 AC_SUBST([am__include])])
  975 AC_SUBST([am__quote])])
  976 
  977 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  978 
  979 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
  980 #
  981 # This file is free software; the Free Software Foundation
  982 # gives unlimited permission to copy and/or distribute it,
  983 # with or without modifications, as long as this notice is preserved.
  984 
  985 # AM_MISSING_PROG(NAME, PROGRAM)
  986 # ------------------------------
  987 AC_DEFUN([AM_MISSING_PROG],
  988 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  989 $1=${$1-"${am_missing_run}$2"}
  990 AC_SUBST($1)])
  991 
  992 # AM_MISSING_HAS_RUN
  993 # ------------------
  994 # Define MISSING if not defined so far and test if it is modern enough.
  995 # If it is, set am_missing_run to use it, otherwise, to nothing.
  996 AC_DEFUN([AM_MISSING_HAS_RUN],
  997 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  998 AC_REQUIRE_AUX_FILE([missing])dnl
  999 if test x"${MISSING+set}" != xset; then
 1000   MISSING="\${SHELL} '$am_aux_dir/missing'"
 1001 fi
 1002 # Use eval to expand $SHELL
 1003 if eval "$MISSING --is-lightweight"; then
 1004   am_missing_run="$MISSING "
 1005 else
 1006   am_missing_run=
 1007   AC_MSG_WARN(['missing' script is too old or missing])
 1008 fi
 1009 ])
 1010 
 1011 # Helper functions for option handling.                     -*- Autoconf -*-
 1012 
 1013 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 1014 #
 1015 # This file is free software; the Free Software Foundation
 1016 # gives unlimited permission to copy and/or distribute it,
 1017 # with or without modifications, as long as this notice is preserved.
 1018 
 1019 # _AM_MANGLE_OPTION(NAME)
 1020 # -----------------------
 1021 AC_DEFUN([_AM_MANGLE_OPTION],
 1022 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 1023 
 1024 # _AM_SET_OPTION(NAME)
 1025 # --------------------
 1026 # Set option NAME.  Presently that only means defining a flag for this option.
 1027 AC_DEFUN([_AM_SET_OPTION],
 1028 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 1029 
 1030 # _AM_SET_OPTIONS(OPTIONS)
 1031 # ------------------------
 1032 # OPTIONS is a space-separated list of Automake options.
 1033 AC_DEFUN([_AM_SET_OPTIONS],
 1034 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 1035 
 1036 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 1037 # -------------------------------------------
 1038 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 1039 AC_DEFUN([_AM_IF_OPTION],
 1040 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 1041 
 1042 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 1043 #
 1044 # This file is free software; the Free Software Foundation
 1045 # gives unlimited permission to copy and/or distribute it,
 1046 # with or without modifications, as long as this notice is preserved.
 1047 
 1048 # _AM_PROG_CC_C_O
 1049 # ---------------
 1050 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 1051 # to automatically call this.
 1052 AC_DEFUN([_AM_PROG_CC_C_O],
 1053 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 1054 AC_REQUIRE_AUX_FILE([compile])dnl
 1055 AC_LANG_PUSH([C])dnl
 1056 AC_CACHE_CHECK(
 1057   [whether $CC understands -c and -o together],
 1058   [am_cv_prog_cc_c_o],
 1059   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 1060   # Make sure it works both with $CC and with simple cc.
 1061   # Following AC_PROG_CC_C_O, we do the test twice because some
 1062   # compilers refuse to overwrite an existing .o file with -o,
 1063   # though they will create one.
 1064   am_cv_prog_cc_c_o=yes
 1065   for am_i in 1 2; do
 1066     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 1067          && test -f conftest2.$ac_objext; then
 1068       : OK
 1069     else
 1070       am_cv_prog_cc_c_o=no
 1071       break
 1072     fi
 1073   done
 1074   rm -f core conftest*
 1075   unset am_i])
 1076 if test "$am_cv_prog_cc_c_o" != yes; then
 1077    # Losing compiler, so override with the script.
 1078    # FIXME: It is wrong to rewrite CC.
 1079    # But if we don't then we get into trouble of one sort or another.
 1080    # A longer-term fix would be to have automake use am__CC in this case,
 1081    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 1082    CC="$am_aux_dir/compile $CC"
 1083 fi
 1084 AC_LANG_POP([C])])
 1085 
 1086 # For backward compatibility.
 1087 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 1088 
 1089 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 1090 #
 1091 # This file is free software; the Free Software Foundation
 1092 # gives unlimited permission to copy and/or distribute it,
 1093 # with or without modifications, as long as this notice is preserved.
 1094 
 1095 
 1096 # AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 1097 # ---------------------------------------------------------------------------
 1098 # Adds support for distributing Python modules and packages.  To
 1099 # install modules, copy them to $(pythondir), using the python_PYTHON
 1100 # automake variable.  To install a package with the same name as the
 1101 # automake package, install to $(pkgpythondir), or use the
 1102 # pkgpython_PYTHON automake variable.
 1103 #
 1104 # The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
 1105 # locations to install python extension modules (shared libraries).
 1106 # Another macro is required to find the appropriate flags to compile
 1107 # extension modules.
 1108 #
 1109 # If your package is configured with a different prefix to python,
 1110 # users will have to add the install directory to the PYTHONPATH
 1111 # environment variable, or create a .pth file (see the python
 1112 # documentation for details).
 1113 #
 1114 # If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
 1115 # cause an error if the version of python installed on the system
 1116 # doesn't meet the requirement.  MINIMUM-VERSION should consist of
 1117 # numbers and dots only.
 1118 AC_DEFUN([AM_PATH_PYTHON],
 1119  [
 1120   dnl Find a Python interpreter.  Python versions prior to 2.0 are not
 1121   dnl supported. (2.0 was released on October 16, 2000).
 1122   m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
 1123 [python python2 python3 dnl
 1124  python3.11 python3.10 dnl
 1125  python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
 1126  python3.2 python3.1 python3.0 dnl
 1127  python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
 1128  python2.0])
 1129 
 1130   AC_ARG_VAR([PYTHON], [the Python interpreter])
 1131 
 1132   m4_if([$1],[],[
 1133     dnl No version check is needed.
 1134     # Find any Python interpreter.
 1135     if test -z "$PYTHON"; then
 1136       AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
 1137     fi
 1138     am_display_PYTHON=python
 1139   ], [
 1140     dnl A version check is needed.
 1141     if test -n "$PYTHON"; then
 1142       # If the user set $PYTHON, use it and don't search something else.
 1143       AC_MSG_CHECKING([whether $PYTHON version is >= $1])
 1144       AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
 1145 			      [AC_MSG_RESULT([yes])],
 1146 			      [AC_MSG_RESULT([no])
 1147 			       AC_MSG_ERROR([Python interpreter is too old])])
 1148       am_display_PYTHON=$PYTHON
 1149     else
 1150       # Otherwise, try each interpreter until we find one that satisfies
 1151       # VERSION.
 1152       AC_CACHE_CHECK([for a Python interpreter with version >= $1],
 1153 	[am_cv_pathless_PYTHON],[
 1154 	for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
 1155 	  test "$am_cv_pathless_PYTHON" = none && break
 1156 	  AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
 1157 	done])
 1158       # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
 1159       if test "$am_cv_pathless_PYTHON" = none; then
 1160 	PYTHON=:
 1161       else
 1162         AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
 1163       fi
 1164       am_display_PYTHON=$am_cv_pathless_PYTHON
 1165     fi
 1166   ])
 1167 
 1168   if test "$PYTHON" = :; then
 1169     dnl Run any user-specified action, or abort.
 1170     m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
 1171   else
 1172 
 1173   dnl Query Python for its version number.  Although site.py simply uses
 1174   dnl sys.version[:3], printing that failed with Python 3.10, since the
 1175   dnl trailing zero was eliminated. So now we output just the major
 1176   dnl and minor version numbers, as numbers. Apparently the tertiary
 1177   dnl version is not of interest.
 1178   dnl
 1179   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
 1180     [am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[[:2]])"`])
 1181   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
 1182 
 1183   dnl At times, e.g., when building shared libraries, you may want
 1184   dnl to know which OS platform Python thinks this is.
 1185   dnl
 1186   AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
 1187     [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
 1188   AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
 1189 
 1190   dnl emacs-page
 1191   dnl If --with-python-sys-prefix is given, use the values of sys.prefix
 1192   dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
 1193   dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
 1194   dnl ${exec_prefix} variables.
 1195   dnl
 1196   dnl The two are made distinct variables so they can be overridden if
 1197   dnl need be, although general consensus is that you shouldn't need
 1198   dnl this separation.
 1199   dnl
 1200   dnl Also allow directly setting the prefixes via configure options,
 1201   dnl overriding any default.
 1202   dnl
 1203   if test "x$prefix" = xNONE; then
 1204     am__usable_prefix=$ac_default_prefix
 1205   else
 1206     am__usable_prefix=$prefix
 1207   fi
 1208 
 1209   # Allow user to request using sys.* values from Python,
 1210   # instead of the GNU $prefix values.
 1211   AC_ARG_WITH([python-sys-prefix],
 1212   [AS_HELP_STRING([--with-python-sys-prefix],
 1213                   [use Python's sys.prefix and sys.exec_prefix values])],
 1214   [am_use_python_sys=:],
 1215   [am_use_python_sys=false])
 1216 
 1217   # Allow user to override whatever the default Python prefix is.
 1218   AC_ARG_WITH([python_prefix],
 1219   [AS_HELP_STRING([--with-python_prefix],
 1220                   [override the default PYTHON_PREFIX])],
 1221   [am_python_prefix_subst=$withval
 1222    am_cv_python_prefix=$withval
 1223    AC_MSG_CHECKING([for explicit $am_display_PYTHON prefix])
 1224    AC_MSG_RESULT([$am_cv_python_prefix])],
 1225   [
 1226    if $am_use_python_sys; then
 1227      # using python sys.prefix value, not GNU
 1228      AC_CACHE_CHECK([for python default $am_display_PYTHON prefix],
 1229      [am_cv_python_prefix],
 1230      [am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`])
 1231 
 1232      dnl If sys.prefix is a subdir of $prefix, replace the literal value of
 1233      dnl $prefix with a variable reference so it can be overridden.
 1234      case $am_cv_python_prefix in
 1235      $am__usable_prefix*)
 1236        am__strip_prefix=`echo "$am__usable_prefix" | sed 's|.|.|g'`
 1237        am_python_prefix_subst=`echo "$am_cv_python_prefix" | sed "s,^$am__strip_prefix,\\${prefix},"`
 1238        ;;
 1239      *)
 1240        am_python_prefix_subst=$am_cv_python_prefix
 1241        ;;
 1242      esac
 1243    else # using GNU prefix value, not python sys.prefix
 1244      am_python_prefix_subst='${prefix}'
 1245      am_python_prefix=$am_python_prefix_subst
 1246      AC_MSG_CHECKING([for GNU default $am_display_PYTHON prefix])
 1247      AC_MSG_RESULT([$am_python_prefix])
 1248    fi])
 1249   # Substituting python_prefix_subst value.
 1250   AC_SUBST([PYTHON_PREFIX], [$am_python_prefix_subst])
 1251 
 1252   # emacs-page Now do it all over again for Python exec_prefix, but with yet
 1253   # another conditional: fall back to regular prefix if that was specified.
 1254   AC_ARG_WITH([python_exec_prefix],
 1255   [AS_HELP_STRING([--with-python_exec_prefix],
 1256                   [override the default PYTHON_EXEC_PREFIX])],
 1257   [am_python_exec_prefix_subst=$withval
 1258    am_cv_python_exec_prefix=$withval
 1259    AC_MSG_CHECKING([for explicit $am_display_PYTHON exec_prefix])
 1260    AC_MSG_RESULT([$am_cv_python_exec_prefix])],
 1261   [
 1262    # no explicit --with-python_exec_prefix, but if
 1263    # --with-python_prefix was given, use its value for python_exec_prefix too.
 1264    AS_IF([test -n "$with_python_prefix"],
 1265    [am_python_exec_prefix_subst=$with_python_prefix
 1266     am_cv_python_exec_prefix=$with_python_prefix
 1267     AC_MSG_CHECKING([for python_prefix-given $am_display_PYTHON exec_prefix])
 1268     AC_MSG_RESULT([$am_cv_python_exec_prefix])],
 1269    [
 1270     # Set am__usable_exec_prefix whether using GNU or Python values,
 1271     # since we use that variable for pyexecdir.
 1272     if test "x$exec_prefix" = xNONE; then
 1273       am__usable_exec_prefix=$am__usable_prefix
 1274     else
 1275       am__usable_exec_prefix=$exec_prefix
 1276     fi
 1277     #
 1278     if $am_use_python_sys; then # using python sys.exec_prefix, not GNU
 1279       AC_CACHE_CHECK([for python default $am_display_PYTHON exec_prefix],
 1280       [am_cv_python_exec_prefix],
 1281       [am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`])
 1282       dnl If sys.exec_prefix is a subdir of $exec_prefix, replace the
 1283       dnl literal value of $exec_prefix with a variable reference so it can
 1284       dnl be overridden.
 1285       case $am_cv_python_exec_prefix in
 1286       $am__usable_exec_prefix*)
 1287         am__strip_prefix=`echo "$am__usable_exec_prefix" | sed 's|.|.|g'`
 1288         am_python_exec_prefix_subst=`echo "$am_cv_python_exec_prefix" | sed "s,^$am__strip_prefix,\\${exec_prefix},"`
 1289         ;;
 1290       *)
 1291         am_python_exec_prefix_subst=$am_cv_python_exec_prefix
 1292         ;;
 1293      esac
 1294    else # using GNU $exec_prefix, not python sys.exec_prefix
 1295      am_python_exec_prefix_subst='${exec_prefix}'
 1296      am_python_exec_prefix=$am_python_exec_prefix_subst
 1297      AC_MSG_CHECKING([for GNU default $am_display_PYTHON exec_prefix])
 1298      AC_MSG_RESULT([$am_python_exec_prefix])
 1299    fi])])
 1300   # Substituting python_exec_prefix_subst.
 1301   AC_SUBST([PYTHON_EXEC_PREFIX], [$am_python_exec_prefix_subst])
 1302 
 1303   # Factor out some code duplication into this shell variable.
 1304   am_python_setup_sysconfig="\
 1305 import sys
 1306 # Prefer sysconfig over distutils.sysconfig, for better compatibility
 1307 # with python 3.x.  See automake bug#10227.
 1308 try:
 1309     import sysconfig
 1310 except ImportError:
 1311     can_use_sysconfig = 0
 1312 else:
 1313     can_use_sysconfig = 1
 1314 # Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
 1315 # <https://github.com/pypa/virtualenv/issues/118>
 1316 try:
 1317     from platform import python_implementation
 1318     if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
 1319         can_use_sysconfig = 0
 1320 except ImportError:
 1321     pass"
 1322 
 1323   dnl emacs-page Set up 4 directories:
 1324 
 1325   dnl 1. pythondir: where to install python scripts.  This is the
 1326   dnl    site-packages directory, not the python standard library
 1327   dnl    directory like in previous automake betas.  This behavior
 1328   dnl    is more consistent with lispdir.m4 for example.
 1329   dnl Query distutils for this directory.
 1330   dnl
 1331   AC_CACHE_CHECK([for $am_display_PYTHON script directory (pythondir)],
 1332   [am_cv_python_pythondir],
 1333   [if test "x$am_cv_python_prefix" = x; then
 1334      am_py_prefix=$am__usable_prefix
 1335    else
 1336      am_py_prefix=$am_cv_python_prefix
 1337    fi
 1338    am_cv_python_pythondir=`$PYTHON -c "
 1339 $am_python_setup_sysconfig
 1340 if can_use_sysconfig:
 1341   if hasattr(sysconfig, 'get_default_scheme'):
 1342     scheme = sysconfig.get_default_scheme()
 1343   else:
 1344     scheme = sysconfig._get_default_scheme()
 1345   if scheme == 'posix_local':
 1346     # Debian's default scheme installs to /usr/local/ but we want to find headers in /usr/
 1347     scheme = 'posix_prefix'
 1348   sitedir = sysconfig.get_path('purelib', scheme, vars={'base':'$am_py_prefix'})
 1349 else:
 1350   from distutils import sysconfig
 1351   sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
 1352 sys.stdout.write(sitedir)"`
 1353    #
 1354    case $am_cv_python_pythondir in
 1355    $am_py_prefix*)
 1356      am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
 1357      am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,\\${PYTHON_PREFIX},"`
 1358      ;;
 1359    *)
 1360      case $am_py_prefix in
 1361        /usr|/System*) ;;
 1362        *) am_cv_python_pythondir="\${PYTHON_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
 1363           ;;
 1364      esac
 1365      ;;
 1366    esac
 1367   ])
 1368   AC_SUBST([pythondir], [$am_cv_python_pythondir])
 1369 
 1370   dnl 2. pkgpythondir: $PACKAGE directory under pythondir.  Was
 1371   dnl    PYTHON_SITE_PACKAGE in previous betas, but this naming is
 1372   dnl    more consistent with the rest of automake.
 1373   dnl
 1374   AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
 1375 
 1376   dnl 3. pyexecdir: directory for installing python extension modules
 1377   dnl    (shared libraries).
 1378   dnl Query distutils for this directory.
 1379   dnl
 1380   AC_CACHE_CHECK([for $am_display_PYTHON extension module directory (pyexecdir)],
 1381   [am_cv_python_pyexecdir],
 1382   [if test "x$am_cv_python_exec_prefix" = x; then
 1383      am_py_exec_prefix=$am__usable_exec_prefix
 1384    else
 1385      am_py_exec_prefix=$am_cv_python_exec_prefix
 1386    fi
 1387    am_cv_python_pyexecdir=`$PYTHON -c "
 1388 $am_python_setup_sysconfig
 1389 if can_use_sysconfig:
 1390   if hasattr(sysconfig, 'get_default_scheme'):
 1391     scheme = sysconfig.get_default_scheme()
 1392   else:
 1393     scheme = sysconfig._get_default_scheme()
 1394   if scheme == 'posix_local':
 1395     # Debian's default scheme installs to /usr/local/ but we want to find headers in /usr/
 1396     scheme = 'posix_prefix'
 1397   sitedir = sysconfig.get_path('platlib', scheme, vars={'platbase':'$am_py_exec_prefix'})
 1398 else:
 1399   from distutils import sysconfig
 1400   sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_exec_prefix')
 1401 sys.stdout.write(sitedir)"`
 1402    #
 1403    case $am_cv_python_pyexecdir in
 1404    $am_py_exec_prefix*)
 1405      am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
 1406      am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,\\${PYTHON_EXEC_PREFIX},"`
 1407      ;;
 1408    *)
 1409      case $am_py_exec_prefix in
 1410        /usr|/System*) ;;
 1411        *) am_cv_python_pyexecdir="\${PYTHON_EXEC_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
 1412           ;;
 1413      esac
 1414      ;;
 1415    esac
 1416   ])
 1417   AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
 1418 
 1419   dnl 4. pkgpyexecdir: $(pyexecdir)/$(PACKAGE)
 1420   dnl
 1421   AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
 1422 
 1423   dnl Run any user-specified action.
 1424   $2
 1425   fi
 1426 ])
 1427 
 1428 
 1429 # AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
 1430 # ---------------------------------------------------------------------------
 1431 # Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
 1432 # Run ACTION-IF-FALSE otherwise.
 1433 # This test uses sys.hexversion instead of the string equivalent (first
 1434 # word of sys.version), in order to cope with versions such as 2.2c1.
 1435 # This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
 1436 AC_DEFUN([AM_PYTHON_CHECK_VERSION],
 1437  [prog="import sys
 1438 # split strings by '.' and convert to numeric.  Append some zeros
 1439 # because we need at least 4 digits for the hex conversion.
 1440 # map returns an iterator in Python 3.0 and a list in 2.x
 1441 minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
 1442 minverhex = 0
 1443 # xrange is not present in Python 3.0 and range returns an iterator
 1444 for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
 1445 sys.exit(sys.hexversion < minverhex)"
 1446   AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
 1447 
 1448 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 1449 #
 1450 # This file is free software; the Free Software Foundation
 1451 # gives unlimited permission to copy and/or distribute it,
 1452 # with or without modifications, as long as this notice is preserved.
 1453 
 1454 # AM_RUN_LOG(COMMAND)
 1455 # -------------------
 1456 # Run COMMAND, save the exit status in ac_status, and log it.
 1457 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 1458 AC_DEFUN([AM_RUN_LOG],
 1459 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 1460    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 1461    ac_status=$?
 1462    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 1463    (exit $ac_status); }])
 1464 
 1465 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 1466 
 1467 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 1468 #
 1469 # This file is free software; the Free Software Foundation
 1470 # gives unlimited permission to copy and/or distribute it,
 1471 # with or without modifications, as long as this notice is preserved.
 1472 
 1473 # AM_SANITY_CHECK
 1474 # ---------------
 1475 AC_DEFUN([AM_SANITY_CHECK],
 1476 [AC_MSG_CHECKING([whether build environment is sane])
 1477 # Reject unsafe characters in $srcdir or the absolute working directory
 1478 # name.  Accept space and tab only in the latter.
 1479 am_lf='
 1480 '
 1481 case `pwd` in
 1482   *[[\\\"\#\$\&\'\`$am_lf]]*)
 1483     AC_MSG_ERROR([unsafe absolute working directory name]);;
 1484 esac
 1485 case $srcdir in
 1486   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
 1487     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 1488 esac
 1489 
 1490 # Do 'set' in a subshell so we don't clobber the current shell's
 1491 # arguments.  Must try -L first in case configure is actually a
 1492 # symlink; some systems play weird games with the mod time of symlinks
 1493 # (eg FreeBSD returns the mod time of the symlink's containing
 1494 # directory).
 1495 if (
 1496    am_has_slept=no
 1497    for am_try in 1 2; do
 1498      echo "timestamp, slept: $am_has_slept" > conftest.file
 1499      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 1500      if test "$[*]" = "X"; then
 1501 	# -L didn't work.
 1502 	set X `ls -t "$srcdir/configure" conftest.file`
 1503      fi
 1504      if test "$[*]" != "X $srcdir/configure conftest.file" \
 1505 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
 1506 
 1507 	# If neither matched, then we have a broken ls.  This can happen
 1508 	# if, for instance, CONFIG_SHELL is bash and it inherits a
 1509 	# broken ls alias from the environment.  This has actually
 1510 	# happened.  Such a system could not be considered "sane".
 1511 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 1512   alias in your environment])
 1513      fi
 1514      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 1515        break
 1516      fi
 1517      # Just in case.
 1518      sleep 1
 1519      am_has_slept=yes
 1520    done
 1521    test "$[2]" = conftest.file
 1522    )
 1523 then
 1524    # Ok.
 1525    :
 1526 else
 1527    AC_MSG_ERROR([newly created file is older than distributed files!
 1528 Check your system clock])
 1529 fi
 1530 AC_MSG_RESULT([yes])
 1531 # If we didn't sleep, we still need to ensure time stamps of config.status and
 1532 # generated files are strictly newer.
 1533 am_sleep_pid=
 1534 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 1535   ( sleep 1 ) &
 1536   am_sleep_pid=$!
 1537 fi
 1538 AC_CONFIG_COMMANDS_PRE(
 1539   [AC_MSG_CHECKING([that generated files are newer than configure])
 1540    if test -n "$am_sleep_pid"; then
 1541      # Hide warnings about reused PIDs.
 1542      wait $am_sleep_pid 2>/dev/null
 1543    fi
 1544    AC_MSG_RESULT([done])])
 1545 rm -f conftest.file
 1546 ])
 1547 
 1548 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
 1549 #
 1550 # This file is free software; the Free Software Foundation
 1551 # gives unlimited permission to copy and/or distribute it,
 1552 # with or without modifications, as long as this notice is preserved.
 1553 
 1554 # AM_SILENT_RULES([DEFAULT])
 1555 # --------------------------
 1556 # Enable less verbose build rules; with the default set to DEFAULT
 1557 # ("yes" being less verbose, "no" or empty being verbose).
 1558 AC_DEFUN([AM_SILENT_RULES],
 1559 [AC_ARG_ENABLE([silent-rules], [dnl
 1560 AS_HELP_STRING(
 1561   [--enable-silent-rules],
 1562   [less verbose build output (undo: "make V=1")])
 1563 AS_HELP_STRING(
 1564   [--disable-silent-rules],
 1565   [verbose build output (undo: "make V=0")])dnl
 1566 ])
 1567 case $enable_silent_rules in @%:@ (((
 1568   yes) AM_DEFAULT_VERBOSITY=0;;
 1569    no) AM_DEFAULT_VERBOSITY=1;;
 1570     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 1571 esac
 1572 dnl
 1573 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 1574 dnl do not support nested variable expansions.
 1575 dnl See automake bug#9928 and bug#10237.
 1576 am_make=${MAKE-make}
 1577 AC_CACHE_CHECK([whether $am_make supports nested variables],
 1578    [am_cv_make_support_nested_variables],
 1579    [if AS_ECHO([['TRUE=$(BAR$(V))
 1580 BAR0=false
 1581 BAR1=true
 1582 V=1
 1583 am__doit:
 1584 	@$(TRUE)
 1585 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 1586   am_cv_make_support_nested_variables=yes
 1587 else
 1588   am_cv_make_support_nested_variables=no
 1589 fi])
 1590 if test $am_cv_make_support_nested_variables = yes; then
 1591   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 1592   AM_V='$(V)'
 1593   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1594 else
 1595   AM_V=$AM_DEFAULT_VERBOSITY
 1596   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1597 fi
 1598 AC_SUBST([AM_V])dnl
 1599 AM_SUBST_NOTMAKE([AM_V])dnl
 1600 AC_SUBST([AM_DEFAULT_V])dnl
 1601 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1602 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1603 AM_BACKSLASH='\'
 1604 AC_SUBST([AM_BACKSLASH])dnl
 1605 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1606 ])
 1607 
 1608 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 1609 #
 1610 # This file is free software; the Free Software Foundation
 1611 # gives unlimited permission to copy and/or distribute it,
 1612 # with or without modifications, as long as this notice is preserved.
 1613 
 1614 # AM_PROG_INSTALL_STRIP
 1615 # ---------------------
 1616 # One issue with vendor 'install' (even GNU) is that you can't
 1617 # specify the program used to strip binaries.  This is especially
 1618 # annoying in cross-compiling environments, where the build's strip
 1619 # is unlikely to handle the host's binaries.
 1620 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1621 # always use install-sh in "make install-strip", and initialize
 1622 # STRIPPROG with the value of the STRIP variable (set by the user).
 1623 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1624 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1625 # Installed binaries are usually stripped using 'strip' when the user
 1626 # run "make install-strip".  However 'strip' might not be the right
 1627 # tool to use in cross-compilation environments, therefore Automake
 1628 # will honor the 'STRIP' environment variable to overrule this program.
 1629 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1630 if test "$cross_compiling" != no; then
 1631   AC_CHECK_TOOL([STRIP], [strip], :)
 1632 fi
 1633 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1634 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1635 
 1636 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
 1637 #
 1638 # This file is free software; the Free Software Foundation
 1639 # gives unlimited permission to copy and/or distribute it,
 1640 # with or without modifications, as long as this notice is preserved.
 1641 
 1642 # _AM_SUBST_NOTMAKE(VARIABLE)
 1643 # ---------------------------
 1644 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1645 # This macro is traced by Automake.
 1646 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1647 
 1648 # AM_SUBST_NOTMAKE(VARIABLE)
 1649 # --------------------------
 1650 # Public sister of _AM_SUBST_NOTMAKE.
 1651 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1652 
 1653 # Check how to create a tarball.                            -*- Autoconf -*-
 1654 
 1655 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
 1656 #
 1657 # This file is free software; the Free Software Foundation
 1658 # gives unlimited permission to copy and/or distribute it,
 1659 # with or without modifications, as long as this notice is preserved.
 1660 
 1661 # _AM_PROG_TAR(FORMAT)
 1662 # --------------------
 1663 # Check how to create a tarball in format FORMAT.
 1664 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1665 #
 1666 # Substitute a variable $(am__tar) that is a command
 1667 # writing to stdout a FORMAT-tarball containing the directory
 1668 # $tardir.
 1669 #     tardir=directory && $(am__tar) > result.tar
 1670 #
 1671 # Substitute a variable $(am__untar) that extract such
 1672 # a tarball read from stdin.
 1673 #     $(am__untar) < result.tar
 1674 #
 1675 AC_DEFUN([_AM_PROG_TAR],
 1676 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1677 # in the wild :-(  We should find a proper way to deprecate it ...
 1678 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1679 
 1680 # We'll loop over all known methods to create a tar archive until one works.
 1681 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1682 
 1683 m4_if([$1], [v7],
 1684   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1685 
 1686   [m4_case([$1],
 1687     [ustar],
 1688      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1689       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1690       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1691       # and bug#13588).
 1692       am_max_uid=2097151 # 2^21 - 1
 1693       am_max_gid=$am_max_uid
 1694       # The $UID and $GID variables are not portable, so we need to resort
 1695       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1696       # below are definitely unexpected, so allow the users to see them
 1697       # (that is, avoid stderr redirection).
 1698       am_uid=`id -u || echo unknown`
 1699       am_gid=`id -g || echo unknown`
 1700       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1701       if test $am_uid -le $am_max_uid; then
 1702          AC_MSG_RESULT([yes])
 1703       else
 1704          AC_MSG_RESULT([no])
 1705          _am_tools=none
 1706       fi
 1707       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1708       if test $am_gid -le $am_max_gid; then
 1709          AC_MSG_RESULT([yes])
 1710       else
 1711         AC_MSG_RESULT([no])
 1712         _am_tools=none
 1713       fi],
 1714 
 1715   [pax],
 1716     [],
 1717 
 1718   [m4_fatal([Unknown tar format])])
 1719 
 1720   AC_MSG_CHECKING([how to create a $1 tar archive])
 1721 
 1722   # Go ahead even if we have the value already cached.  We do so because we
 1723   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1724   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1725 
 1726   for _am_tool in $_am_tools; do
 1727     case $_am_tool in
 1728     gnutar)
 1729       for _am_tar in tar gnutar gtar; do
 1730         AM_RUN_LOG([$_am_tar --version]) && break
 1731       done
 1732       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1733       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1734       am__untar="$_am_tar -xf -"
 1735       ;;
 1736     plaintar)
 1737       # Must skip GNU tar: if it does not support --format= it doesn't create
 1738       # ustar tarball either.
 1739       (tar --version) >/dev/null 2>&1 && continue
 1740       am__tar='tar chf - "$$tardir"'
 1741       am__tar_='tar chf - "$tardir"'
 1742       am__untar='tar xf -'
 1743       ;;
 1744     pax)
 1745       am__tar='pax -L -x $1 -w "$$tardir"'
 1746       am__tar_='pax -L -x $1 -w "$tardir"'
 1747       am__untar='pax -r'
 1748       ;;
 1749     cpio)
 1750       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1751       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1752       am__untar='cpio -i -H $1 -d'
 1753       ;;
 1754     none)
 1755       am__tar=false
 1756       am__tar_=false
 1757       am__untar=false
 1758       ;;
 1759     esac
 1760 
 1761     # If the value was cached, stop now.  We just wanted to have am__tar
 1762     # and am__untar set.
 1763     test -n "${am_cv_prog_tar_$1}" && break
 1764 
 1765     # tar/untar a dummy directory, and stop if the command works.
 1766     rm -rf conftest.dir
 1767     mkdir conftest.dir
 1768     echo GrepMe > conftest.dir/file
 1769     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1770     rm -rf conftest.dir
 1771     if test -s conftest.tar; then
 1772       AM_RUN_LOG([$am__untar <conftest.tar])
 1773       AM_RUN_LOG([cat conftest.dir/file])
 1774       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1775     fi
 1776   done
 1777   rm -rf conftest.dir
 1778 
 1779   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1780   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1781 
 1782 AC_SUBST([am__tar])
 1783 AC_SUBST([am__untar])
 1784 ]) # _AM_PROG_TAR
 1785