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      1 # generated automatically by aclocal 1.17 -*- Autoconf -*-
      2 
      3 # Copyright (C) 1996-2024 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]), [2.72],,
     18 [m4_warning([this file was generated for autoconf 2.72.
     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 use pkg-config.   -*- Autoconf -*-
     24 # serial 12 (pkg-config-0.29.2)
     25 
     26 dnl Copyright  2004 Scott James Remnant <scott (a] netsplit.com>.
     27 dnl Copyright  2012-2015 Dan Nicholson <dbn.lists (a] 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 $_pkg_min_version; then
     95 		AC_MSG_RESULT([yes])
     96 	else
     97 		AC_MSG_RESULT([no])
     98 		PKG_CONFIG=""
     99 	fi
    100 fi[]dnl
    101 ])dnl PKG_PROG_PKG_CONFIG
    102 
    103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
    104 dnl -------------------------------------------------------------------
    105 dnl Since: 0.18
    106 dnl
    107 dnl Check to see whether a particular set of modules exists. Similar to
    108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
    109 dnl
    110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
    111 dnl only at the first occurrence in configure.ac, so if the first place
    112 dnl it's called might be skipped (such as if it is within an "if", you
    113 dnl have to call PKG_CHECK_EXISTS manually
    114 AC_DEFUN([PKG_CHECK_EXISTS],
    115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
    116 if test -n "$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 dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
    300 dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
    301 dnl   [DESCRIPTION], [DEFAULT])
    302 dnl ------------------------------------------
    303 dnl
    304 dnl Prepare a "--with-" configure option using the lowercase
    305 dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
    306 dnl PKG_CHECK_MODULES in a single macro.
    307 AC_DEFUN([PKG_WITH_MODULES],
    308 [
    309 m4_pushdef([with_arg], m4_tolower([$1]))
    310 
    311 m4_pushdef([description],
    312            [m4_default([$5], [build with ]with_arg[ support])])
    313 
    314 m4_pushdef([def_arg], [m4_default([$6], [auto])])
    315 m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
    316 m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
    317 
    318 m4_case(def_arg,
    319             [yes],[m4_pushdef([with_without], [--without-]with_arg)],
    320             [m4_pushdef([with_without],[--with-]with_arg)])
    321 
    322 AC_ARG_WITH(with_arg,
    323      AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
    324     [AS_TR_SH([with_]with_arg)=def_arg])
    325 
    326 AS_CASE([$AS_TR_SH([with_]with_arg)],
    327             [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
    328             [auto],[PKG_CHECK_MODULES([$1],[$2],
    329                                         [m4_n([def_action_if_found]) $3],
    330                                         [m4_n([def_action_if_not_found]) $4])])
    331 
    332 m4_popdef([with_arg])
    333 m4_popdef([description])
    334 m4_popdef([def_arg])
    335 
    336 ])dnl PKG_WITH_MODULES
    337 
    338 dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
    339 dnl   [DESCRIPTION], [DEFAULT])
    340 dnl -----------------------------------------------
    341 dnl
    342 dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
    343 dnl check._[VARIABLE-PREFIX] is exported as make variable.
    344 AC_DEFUN([PKG_HAVE_WITH_MODULES],
    345 [
    346 PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
    347 
    348 AM_CONDITIONAL([HAVE_][$1],
    349                [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
    350 ])dnl PKG_HAVE_WITH_MODULES
    351 
    352 dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
    353 dnl   [DESCRIPTION], [DEFAULT])
    354 dnl ------------------------------------------------------
    355 dnl
    356 dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
    357 dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
    358 dnl and preprocessor variable.
    359 AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
    360 [
    361 PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
    362 
    363 AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
    364         [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
    365 ])dnl PKG_HAVE_DEFINE_WITH_MODULES
    366 
    367 # Copyright (C) 2002-2024 Free Software Foundation, Inc.
    368 #
    369 # This file is free software; the Free Software Foundation
    370 # gives unlimited permission to copy and/or distribute it,
    371 # with or without modifications, as long as this notice is preserved.
    372 
    373 # AM_AUTOMAKE_VERSION(VERSION)
    374 # ----------------------------
    375 # Automake X.Y traces this macro to ensure aclocal.m4 has been
    376 # generated from the m4 files accompanying Automake X.Y.
    377 # (This private macro should not be called outside this file.)
    378 AC_DEFUN([AM_AUTOMAKE_VERSION],
    379 [am__api_version='1.17'
    380 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
    381 dnl require some minimum version.  Point them to the right macro.
    382 m4_if([$1], [1.17], [],
    383       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
    384 ])
    385 
    386 # _AM_AUTOCONF_VERSION(VERSION)
    387 # -----------------------------
    388 # aclocal traces this macro to find the Autoconf version.
    389 # This is a private macro too.  Using m4_define simplifies
    390 # the logic in aclocal, which can simply ignore this definition.
    391 m4_define([_AM_AUTOCONF_VERSION], [])
    392 
    393 # AM_SET_CURRENT_AUTOMAKE_VERSION
    394 # -------------------------------
    395 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
    396 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
    397 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
    398 [AM_AUTOMAKE_VERSION([1.17])dnl
    399 m4_ifndef([AC_AUTOCONF_VERSION],
    400   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
    401 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
    402 
    403 # Copyright (C) 2011-2024 Free Software Foundation, Inc.
    404 #
    405 # This file is free software; the Free Software Foundation
    406 # gives unlimited permission to copy and/or distribute it,
    407 # with or without modifications, as long as this notice is preserved.
    408 
    409 # AM_PROG_AR([ACT-IF-FAIL])
    410 # -------------------------
    411 # Try to determine the archiver interface, and trigger the ar-lib wrapper
    412 # if it is needed.  If the detection of archiver interface fails, run
    413 # ACT-IF-FAIL (default is to abort configure with a proper error message).
    414 AC_DEFUN([AM_PROG_AR],
    415 [AC_BEFORE([$0], [LT_INIT])dnl
    416 AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
    417 AC_BEFORE([$0], [AC_PROG_AR])dnl
    418 AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
    419 AC_REQUIRE_AUX_FILE([ar-lib])dnl
    420 AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
    421 : ${AR=ar}
    422 : ${ARFLAGS=cr}
    423 
    424 AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
    425   [AC_LANG_PUSH([C])
    426    am_cv_ar_interface=ar
    427    AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
    428      [am_ar_try='$AR $ARFLAGS libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
    429       AC_TRY_EVAL([am_ar_try])
    430       if test "$ac_status" -eq 0; then
    431         am_cv_ar_interface=ar
    432       else
    433         am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
    434         AC_TRY_EVAL([am_ar_try])
    435         if test "$ac_status" -eq 0; then
    436           am_cv_ar_interface=lib
    437         else
    438           am_cv_ar_interface=unknown
    439         fi
    440       fi
    441       rm -f conftest.lib libconftest.a
    442      ])
    443    AC_LANG_POP([C])])
    444 
    445 case $am_cv_ar_interface in
    446 ar)
    447   ;;
    448 lib)
    449   # Microsoft lib, so override with the ar-lib wrapper script.
    450   # FIXME: It is wrong to rewrite AR.
    451   # But if we don't then we get into trouble of one sort or another.
    452   # A longer-term fix would be to have automake use am__AR in this case,
    453   # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
    454   # similar.
    455   AR="$am_aux_dir/ar-lib $AR"
    456   ;;
    457 unknown)
    458   m4_default([$1],
    459              [AC_MSG_ERROR([could not determine $AR interface])])
    460   ;;
    461 esac
    462 AC_SUBST([AR])dnl
    463 ])
    464 
    465 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
    466 
    467 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
    468 #
    469 # This file is free software; the Free Software Foundation
    470 # gives unlimited permission to copy and/or distribute it,
    471 # with or without modifications, as long as this notice is preserved.
    472 
    473 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
    474 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
    475 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
    476 #
    477 # Of course, Automake must honor this variable whenever it calls a
    478 # tool from the auxiliary directory.  The problem is that $srcdir (and
    479 # therefore $ac_aux_dir as well) can be either absolute or relative,
    480 # depending on how configure is run.  This is pretty annoying, since
    481 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
    482 # source directory, any form will work fine, but in subdirectories a
    483 # relative path needs to be adjusted first.
    484 #
    485 # $ac_aux_dir/missing
    486 #    fails when called from a subdirectory if $ac_aux_dir is relative
    487 # $top_srcdir/$ac_aux_dir/missing
    488 #    fails if $ac_aux_dir is absolute,
    489 #    fails when called from a subdirectory in a VPATH build with
    490 #          a relative $ac_aux_dir
    491 #
    492 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
    493 # are both prefixed by $srcdir.  In an in-source build this is usually
    494 # harmless because $srcdir is '.', but things will broke when you
    495 # start a VPATH build or use an absolute $srcdir.
    496 #
    497 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
    498 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
    499 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
    500 # and then we would define $MISSING as
    501 #   MISSING="\${SHELL} $am_aux_dir/missing"
    502 # This will work as long as MISSING is not called from configure, because
    503 # unfortunately $(top_srcdir) has no meaning in configure.
    504 # However there are other variables, like CC, which are often used in
    505 # configure, and could therefore not use this "fixed" $ac_aux_dir.
    506 #
    507 # Another solution, used here, is to always expand $ac_aux_dir to an
    508 # absolute PATH.  The drawback is that using absolute paths prevent a
    509 # configured tree to be moved without reconfiguration.
    510 
    511 AC_DEFUN([AM_AUX_DIR_EXPAND],
    512 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
    513 # Expand $ac_aux_dir to an absolute path.
    514 am_aux_dir=`cd "$ac_aux_dir" && pwd`
    515 ])
    516 
    517 # AM_CONDITIONAL                                            -*- Autoconf -*-
    518 
    519 # Copyright (C) 1997-2024 Free Software Foundation, Inc.
    520 #
    521 # This file is free software; the Free Software Foundation
    522 # gives unlimited permission to copy and/or distribute it,
    523 # with or without modifications, as long as this notice is preserved.
    524 
    525 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
    526 # -------------------------------------
    527 # Define a conditional.
    528 AC_DEFUN([AM_CONDITIONAL],
    529 [AC_PREREQ([2.52])dnl
    530  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
    531        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
    532 AC_SUBST([$1_TRUE])dnl
    533 AC_SUBST([$1_FALSE])dnl
    534 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
    535 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
    536 m4_define([_AM_COND_VALUE_$1], [$2])dnl
    537 if $2; then
    538   $1_TRUE=
    539   $1_FALSE='#'
    540 else
    541   $1_TRUE='#'
    542   $1_FALSE=
    543 fi
    544 AC_CONFIG_COMMANDS_PRE(
    545 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
    546   AC_MSG_ERROR([[conditional "$1" was never defined.
    547 Usually this means the macro was only invoked conditionally.]])
    548 fi])])
    549 
    550 # Copyright (C) 1999-2024 Free Software Foundation, Inc.
    551 #
    552 # This file is free software; the Free Software Foundation
    553 # gives unlimited permission to copy and/or distribute it,
    554 # with or without modifications, as long as this notice is preserved.
    555 
    556 
    557 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
    558 # written in clear, in which case automake, when reading aclocal.m4,
    559 # will think it sees a *use*, and therefore will trigger all it's
    560 # C support machinery.  Also note that it means that autoscan, seeing
    561 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
    562 
    563 
    564 # _AM_DEPENDENCIES(NAME)
    565 # ----------------------
    566 # See how the compiler implements dependency checking.
    567 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
    568 # We try a few techniques and use that to set a single cache variable.
    569 #
    570 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
    571 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
    572 # dependency, and given that the user is not expected to run this macro,
    573 # just rely on AC_PROG_CC.
    574 AC_DEFUN([_AM_DEPENDENCIES],
    575 [AC_REQUIRE([AM_SET_DEPDIR])dnl
    576 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
    577 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
    578 AC_REQUIRE([AM_DEP_TRACK])dnl
    579 
    580 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
    581       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
    582       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
    583       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
    584       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
    585       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
    586                     [depcc="$$1"   am_compiler_list=])
    587 
    588 AC_CACHE_CHECK([dependency style of $depcc],
    589                [am_cv_$1_dependencies_compiler_type],
    590 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
    591   # We make a subdir and do the tests there.  Otherwise we can end up
    592   # making bogus files that we don't know about and never remove.  For
    593   # instance it was reported that on HP-UX the gcc test will end up
    594   # making a dummy file named 'D' -- because '-MD' means "put the output
    595   # in D".
    596   rm -rf conftest.dir
    597   mkdir conftest.dir
    598   # Copy depcomp to subdir because otherwise we won't find it if we're
    599   # using a relative directory.
    600   cp "$am_depcomp" conftest.dir
    601   cd conftest.dir
    602   # We will build objects and dependencies in a subdirectory because
    603   # it helps to detect inapplicable dependency modes.  For instance
    604   # both Tru64's cc and ICC support -MD to output dependencies as a
    605   # side effect of compilation, but ICC will put the dependencies in
    606   # the current directory while Tru64 will put them in the object
    607   # directory.
    608   mkdir sub
    609 
    610   am_cv_$1_dependencies_compiler_type=none
    611   if test "$am_compiler_list" = ""; then
    612      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
    613   fi
    614   am__universal=false
    615   m4_case([$1], [CC],
    616     [case " $depcc " in #(
    617      *\ -arch\ *\ -arch\ *) am__universal=true ;;
    618      esac],
    619     [CXX],
    620     [case " $depcc " in #(
    621      *\ -arch\ *\ -arch\ *) am__universal=true ;;
    622      esac])
    623 
    624   for depmode in $am_compiler_list; do
    625     # Setup a source with many dependencies, because some compilers
    626     # like to wrap large dependency lists on column 80 (with \), and
    627     # we should not choose a depcomp mode which is confused by this.
    628     #
    629     # We need to recreate these files for each test, as the compiler may
    630     # overwrite some of them when testing with obscure command lines.
    631     # This happens at least with the AIX C compiler.
    632     : > sub/conftest.c
    633     for i in 1 2 3 4 5 6; do
    634       echo '#include "conftst'$i'.h"' >> sub/conftest.c
    635       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
    636       # Solaris 10 /bin/sh.
    637       echo '/* dummy */' > sub/conftst$i.h
    638     done
    639     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
    640 
    641     # We check with '-c' and '-o' for the sake of the "dashmstdout"
    642     # mode.  It turns out that the SunPro C++ compiler does not properly
    643     # handle '-M -o', and we need to detect this.  Also, some Intel
    644     # versions had trouble with output in subdirs.
    645     am__obj=sub/conftest.${OBJEXT-o}
    646     am__minus_obj="-o $am__obj"
    647     case $depmode in
    648     gcc)
    649       # This depmode causes a compiler race in universal mode.
    650       test "$am__universal" = false || continue
    651       ;;
    652     nosideeffect)
    653       # After this tag, mechanisms are not by side-effect, so they'll
    654       # only be used when explicitly requested.
    655       if test "x$enable_dependency_tracking" = xyes; then
    656 	continue
    657       else
    658 	break
    659       fi
    660       ;;
    661     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
    662       # This compiler won't grok '-c -o', but also, the minuso test has
    663       # not run yet.  These depmodes are late enough in the game, and
    664       # so weak that their functioning should not be impacted.
    665       am__obj=conftest.${OBJEXT-o}
    666       am__minus_obj=
    667       ;;
    668     none) break ;;
    669     esac
    670     if depmode=$depmode \
    671        source=sub/conftest.c object=$am__obj \
    672        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
    673        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
    674          >/dev/null 2>conftest.err &&
    675        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
    676        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
    677        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
    678        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
    679       # icc doesn't choke on unknown options, it will just issue warnings
    680       # or remarks (even with -Werror).  So we grep stderr for any message
    681       # that says an option was ignored or not supported.
    682       # When given -MP, icc 7.0 and 7.1 complain thus:
    683       #   icc: Command line warning: ignoring option '-M'; no argument required
    684       # The diagnosis changed in icc 8.0:
    685       #   icc: Command line remark: option '-MP' not supported
    686       if (grep 'ignoring option' conftest.err ||
    687           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
    688         am_cv_$1_dependencies_compiler_type=$depmode
    689         break
    690       fi
    691     fi
    692   done
    693 
    694   cd ..
    695   rm -rf conftest.dir
    696 else
    697   am_cv_$1_dependencies_compiler_type=none
    698 fi
    699 ])
    700 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
    701 AM_CONDITIONAL([am__fastdep$1], [
    702   test "x$enable_dependency_tracking" != xno \
    703   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
    704 ])
    705 
    706 
    707 # AM_SET_DEPDIR
    708 # -------------
    709 # Choose a directory name for dependency files.
    710 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
    711 AC_DEFUN([AM_SET_DEPDIR],
    712 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
    713 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
    714 ])
    715 
    716 
    717 # AM_DEP_TRACK
    718 # ------------
    719 AC_DEFUN([AM_DEP_TRACK],
    720 [AC_ARG_ENABLE([dependency-tracking], [dnl
    721 AS_HELP_STRING(
    722   [--enable-dependency-tracking],
    723   [do not reject slow dependency extractors])
    724 AS_HELP_STRING(
    725   [--disable-dependency-tracking],
    726   [speeds up one-time build])])
    727 if test "x$enable_dependency_tracking" != xno; then
    728   am_depcomp="$ac_aux_dir/depcomp"
    729   AMDEPBACKSLASH='\'
    730   am__nodep='_no'
    731 fi
    732 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
    733 AC_SUBST([AMDEPBACKSLASH])dnl
    734 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
    735 AC_SUBST([am__nodep])dnl
    736 _AM_SUBST_NOTMAKE([am__nodep])dnl
    737 ])
    738 
    739 # Generate code to set up dependency tracking.              -*- Autoconf -*-
    740 
    741 # Copyright (C) 1999-2024 Free Software Foundation, Inc.
    742 #
    743 # This file is free software; the Free Software Foundation
    744 # gives unlimited permission to copy and/or distribute it,
    745 # with or without modifications, as long as this notice is preserved.
    746 
    747 # _AM_OUTPUT_DEPENDENCY_COMMANDS
    748 # ------------------------------
    749 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
    750 [{
    751   # Older Autoconf quotes --file arguments for eval, but not when files
    752   # are listed without --file.  Let's play safe and only enable the eval
    753   # if we detect the quoting.
    754   # TODO: see whether this extra hack can be removed once we start
    755   # requiring Autoconf 2.70 or later.
    756   AS_CASE([$CONFIG_FILES],
    757           [*\'*], [eval set x "$CONFIG_FILES"],
    758           [*], [set x $CONFIG_FILES])
    759   shift
    760   # Used to flag and report bootstrapping failures.
    761   am_rc=0
    762   for am_mf
    763   do
    764     # Strip MF so we end up with the name of the file.
    765     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
    766     # Check whether this is an Automake generated Makefile which includes
    767     # dependency-tracking related rules and includes.
    768     # Grep'ing the whole file directly is not great: AIX grep has a line
    769     # limit of 2048, but all sed's we know have understand at least 4000.
    770     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
    771       || continue
    772     am_dirpart=`AS_DIRNAME(["$am_mf"])`
    773     am_filepart=`AS_BASENAME(["$am_mf"])`
    774     AM_RUN_LOG([cd "$am_dirpart" \
    775       && sed -e '/# am--include-marker/d' "$am_filepart" \
    776         | $MAKE -f - am--depfiles]) || am_rc=$?
    777   done
    778   if test $am_rc -ne 0; then
    779     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
    780     for automatic dependency tracking.  If GNU make was not used, consider
    781     re-running the configure script with MAKE="gmake" (or whatever is
    782     necessary).  You can also try re-running configure with the
    783     '--disable-dependency-tracking' option to at least be able to build
    784     the package (albeit without support for automatic dependency tracking).])
    785   fi
    786   AS_UNSET([am_dirpart])
    787   AS_UNSET([am_filepart])
    788   AS_UNSET([am_mf])
    789   AS_UNSET([am_rc])
    790   rm -f conftest-deps.mk
    791 }
    792 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
    793 
    794 
    795 # AM_OUTPUT_DEPENDENCY_COMMANDS
    796 # -----------------------------
    797 # This macro should only be invoked once -- use via AC_REQUIRE.
    798 #
    799 # This code is only required when automatic dependency tracking is enabled.
    800 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
    801 # order to bootstrap the dependency handling code.
    802 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
    803 [AC_CONFIG_COMMANDS([depfiles],
    804      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
    805      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
    806 
    807 # AM_EXTRA_RECURSIVE_TARGETS                                -*- Autoconf -*-
    808 
    809 # Copyright (C) 2012-2024 Free Software Foundation, Inc.
    810 #
    811 # This file is free software; the Free Software Foundation
    812 # gives unlimited permission to copy and/or distribute it,
    813 # with or without modifications, as long as this notice is preserved.
    814 
    815 # AM_EXTRA_RECURSIVE_TARGETS
    816 # --------------------------
    817 # Define the list of user recursive targets.  This macro exists only to
    818 # be traced by Automake, which will ensure that a proper definition of
    819 # user-defined recursive targets (and associated rules) is propagated
    820 # into all the generated Makefiles.
    821 # TODO: We should really reject non-literal arguments here...
    822 AC_DEFUN([AM_EXTRA_RECURSIVE_TARGETS], [])
    823 
    824 # Do all the work for Automake.                             -*- Autoconf -*-
    825 
    826 # Copyright (C) 1996-2024 Free Software Foundation, Inc.
    827 #
    828 # This file is free software; the Free Software Foundation
    829 # gives unlimited permission to copy and/or distribute it,
    830 # with or without modifications, as long as this notice is preserved.
    831 
    832 # This macro actually does too much.  Some checks are only needed if
    833 # your package does certain things.  But this isn't really a big deal.
    834 
    835 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
    836 m4_define([AC_PROG_CC],
    837 m4_defn([AC_PROG_CC])
    838 [_AM_PROG_CC_C_O
    839 ])
    840 
    841 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
    842 # AM_INIT_AUTOMAKE([OPTIONS])
    843 # -----------------------------------------------
    844 # The call with PACKAGE and VERSION arguments is the old style
    845 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
    846 # and VERSION should now be passed to AC_INIT and removed from
    847 # the call to AM_INIT_AUTOMAKE.
    848 # We support both call styles for the transition.  After
    849 # the next Automake release, Autoconf can make the AC_INIT
    850 # arguments mandatory, and then we can depend on a new Autoconf
    851 # release and drop the old call support.
    852 AC_DEFUN([AM_INIT_AUTOMAKE],
    853 [AC_PREREQ([2.65])dnl
    854 m4_ifdef([_$0_ALREADY_INIT],
    855   [m4_fatal([$0 expanded multiple times
    856 ]m4_defn([_$0_ALREADY_INIT]))],
    857   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
    858 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
    859 dnl the ones we care about.
    860 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
    861 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
    862 AC_REQUIRE([AC_PROG_INSTALL])dnl
    863 if test "`cd $srcdir && pwd`" != "`pwd`"; then
    864   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
    865   # is not polluted with repeated "-I."
    866   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
    867   # test to see if srcdir already configured
    868   if test -f $srcdir/config.status; then
    869     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
    870   fi
    871 fi
    872 
    873 # test whether we have cygpath
    874 if test -z "$CYGPATH_W"; then
    875   if (cygpath --version) >/dev/null 2>/dev/null; then
    876     CYGPATH_W='cygpath -w'
    877   else
    878     CYGPATH_W=echo
    879   fi
    880 fi
    881 AC_SUBST([CYGPATH_W])
    882 
    883 # Define the identity of the package.
    884 dnl Distinguish between old-style and new-style calls.
    885 m4_ifval([$2],
    886 [AC_DIAGNOSE([obsolete],
    887              [$0: two- and three-arguments forms are deprecated.])
    888 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
    889  AC_SUBST([PACKAGE], [$1])dnl
    890  AC_SUBST([VERSION], [$2])],
    891 [_AM_SET_OPTIONS([$1])dnl
    892 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
    893 m4_if(
    894   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
    895   [ok:ok],,
    896   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
    897  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
    898  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
    899 
    900 _AM_IF_OPTION([no-define],,
    901 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
    902  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
    903 
    904 # Some tools Automake needs.
    905 AC_REQUIRE([AM_SANITY_CHECK])dnl
    906 AC_REQUIRE([AC_ARG_PROGRAM])dnl
    907 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
    908 AM_MISSING_PROG([AUTOCONF], [autoconf])
    909 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
    910 AM_MISSING_PROG([AUTOHEADER], [autoheader])
    911 AM_MISSING_PROG([MAKEINFO], [makeinfo])
    912 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
    913 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
    914 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
    915 # For better backward compatibility.  To be removed once Automake 1.9.x
    916 # dies out for good.  For more background, see:
    917 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
    918 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
    919 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
    920 # We need awk for the "check" target (and possibly the TAP driver).  The
    921 # system "awk" is bad on some platforms.
    922 AC_REQUIRE([AC_PROG_AWK])dnl
    923 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
    924 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
    925 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
    926 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
    927 			     [_AM_PROG_TAR([v7])])])
    928 _AM_IF_OPTION([no-dependencies],,
    929 [AC_PROVIDE_IFELSE([AC_PROG_CC],
    930 		  [_AM_DEPENDENCIES([CC])],
    931 		  [m4_define([AC_PROG_CC],
    932 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
    933 AC_PROVIDE_IFELSE([AC_PROG_CXX],
    934 		  [_AM_DEPENDENCIES([CXX])],
    935 		  [m4_define([AC_PROG_CXX],
    936 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
    937 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
    938 		  [_AM_DEPENDENCIES([OBJC])],
    939 		  [m4_define([AC_PROG_OBJC],
    940 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
    941 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
    942 		  [_AM_DEPENDENCIES([OBJCXX])],
    943 		  [m4_define([AC_PROG_OBJCXX],
    944 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
    945 ])
    946 # Variables for tags utilities; see am/tags.am
    947 if test -z "$CTAGS"; then
    948   CTAGS=ctags
    949 fi
    950 AC_SUBST([CTAGS])
    951 if test -z "$ETAGS"; then
    952   ETAGS=etags
    953 fi
    954 AC_SUBST([ETAGS])
    955 if test -z "$CSCOPE"; then
    956   CSCOPE=cscope
    957 fi
    958 AC_SUBST([CSCOPE])
    959 
    960 AC_REQUIRE([_AM_SILENT_RULES])dnl
    961 dnl The testsuite driver may need to know about EXEEXT, so add the
    962 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
    963 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
    964 AC_CONFIG_COMMANDS_PRE(dnl
    965 [m4_provide_if([_AM_COMPILER_EXEEXT],
    966   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
    967 
    968 AC_REQUIRE([_AM_PROG_RM_F])
    969 AC_REQUIRE([_AM_PROG_XARGS_N])
    970 
    971 dnl The trailing newline in this macro's definition is deliberate, for
    972 dnl backward compatibility and to allow trailing 'dnl'-style comments
    973 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
    974 ])
    975 
    976 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
    977 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
    978 dnl mangled by Autoconf and run in a shell conditional statement.
    979 m4_define([_AC_COMPILER_EXEEXT],
    980 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
    981 
    982 # When config.status generates a header, we must update the stamp-h file.
    983 # This file resides in the same directory as the config header
    984 # that is generated.  The stamp files are numbered to have different names.
    985 
    986 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
    987 # loop where config.status creates the headers, so we can generate
    988 # our stamp files there.
    989 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
    990 [# Compute $1's index in $config_headers.
    991 _am_arg=$1
    992 _am_stamp_count=1
    993 for _am_header in $config_headers :; do
    994   case $_am_header in
    995     $_am_arg | $_am_arg:* )
    996       break ;;
    997     * )
    998       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
    999   esac
   1000 done
   1001 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
   1002 
   1003 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
   1004 #
   1005 # This file is free software; the Free Software Foundation
   1006 # gives unlimited permission to copy and/or distribute it,
   1007 # with or without modifications, as long as this notice is preserved.
   1008 
   1009 # AM_PROG_INSTALL_SH
   1010 # ------------------
   1011 # Define $install_sh.
   1012 AC_DEFUN([AM_PROG_INSTALL_SH],
   1013 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
   1014 if test x"${install_sh+set}" != xset; then
   1015   case $am_aux_dir in
   1016   *\ * | *\	*)
   1017     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
   1018   *)
   1019     install_sh="\${SHELL} $am_aux_dir/install-sh"
   1020   esac
   1021 fi
   1022 AC_SUBST([install_sh])])
   1023 
   1024 # Copyright (C) 2003-2024 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 # Check whether the underlying file-system supports filenames
   1031 # with a leading dot.  For instance MS-DOS doesn't.
   1032 AC_DEFUN([AM_SET_LEADING_DOT],
   1033 [rm -rf .tst 2>/dev/null
   1034 mkdir .tst 2>/dev/null
   1035 if test -d .tst; then
   1036   am__leading_dot=.
   1037 else
   1038   am__leading_dot=_
   1039 fi
   1040 rmdir .tst 2>/dev/null
   1041 AC_SUBST([am__leading_dot])])
   1042 
   1043 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
   1044 # From Jim Meyering
   1045 
   1046 # Copyright (C) 1996-2024 Free Software Foundation, Inc.
   1047 #
   1048 # This file is free software; the Free Software Foundation
   1049 # gives unlimited permission to copy and/or distribute it,
   1050 # with or without modifications, as long as this notice is preserved.
   1051 
   1052 # AM_MAINTAINER_MODE([DEFAULT-MODE])
   1053 # ----------------------------------
   1054 # Control maintainer-specific portions of Makefiles.
   1055 # Default is to disable them, unless 'enable' is passed literally.
   1056 # For symmetry, 'disable' may be passed as well.  Anyway, the user
   1057 # can override the default with the --enable/--disable switch.
   1058 AC_DEFUN([AM_MAINTAINER_MODE],
   1059 [m4_case(m4_default([$1], [disable]),
   1060        [enable], [m4_define([am_maintainer_other], [disable])],
   1061        [disable], [m4_define([am_maintainer_other], [enable])],
   1062        [m4_define([am_maintainer_other], [enable])
   1063         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
   1064 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
   1065   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
   1066   AC_ARG_ENABLE([maintainer-mode],
   1067     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
   1068       am_maintainer_other[ make rules and dependencies not useful
   1069       (and sometimes confusing) to the casual installer])],
   1070     [USE_MAINTAINER_MODE=$enableval],
   1071     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
   1072   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
   1073   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
   1074   MAINT=$MAINTAINER_MODE_TRUE
   1075   AC_SUBST([MAINT])dnl
   1076 ]
   1077 )
   1078 
   1079 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
   1080 
   1081 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
   1082 #
   1083 # This file is free software; the Free Software Foundation
   1084 # gives unlimited permission to copy and/or distribute it,
   1085 # with or without modifications, as long as this notice is preserved.
   1086 
   1087 # AM_MAKE_INCLUDE()
   1088 # -----------------
   1089 # Check whether make has an 'include' directive that can support all
   1090 # the idioms we need for our automatic dependency tracking code.
   1091 AC_DEFUN([AM_MAKE_INCLUDE],
   1092 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
   1093 cat > confinc.mk << 'END'
   1094 am__doit:
   1095 	@echo this is the am__doit target >confinc.out
   1096 .PHONY: am__doit
   1097 END
   1098 am__include="#"
   1099 am__quote=
   1100 # BSD make does it like this.
   1101 echo '.include "confinc.mk" # ignored' > confmf.BSD
   1102 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
   1103 echo 'include confinc.mk # ignored' > confmf.GNU
   1104 _am_result=no
   1105 for s in GNU BSD; do
   1106   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
   1107   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
   1108       ['0:this is the am__doit target'],
   1109       [AS_CASE([$s],
   1110           [BSD], [am__include='.include' am__quote='"'],
   1111           [am__include='include' am__quote=''])])
   1112   if test "$am__include" != "#"; then
   1113     _am_result="yes ($s style)"
   1114     break
   1115   fi
   1116 done
   1117 rm -f confinc.* confmf.*
   1118 AC_MSG_RESULT([${_am_result}])
   1119 AC_SUBST([am__include])])
   1120 AC_SUBST([am__quote])])
   1121 
   1122 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
   1123 
   1124 # Copyright (C) 1997-2024 Free Software Foundation, Inc.
   1125 #
   1126 # This file is free software; the Free Software Foundation
   1127 # gives unlimited permission to copy and/or distribute it,
   1128 # with or without modifications, as long as this notice is preserved.
   1129 
   1130 # AM_MISSING_PROG(NAME, PROGRAM)
   1131 # ------------------------------
   1132 AC_DEFUN([AM_MISSING_PROG],
   1133 [AC_REQUIRE([AM_MISSING_HAS_RUN])
   1134 $1=${$1-"${am_missing_run}$2"}
   1135 AC_SUBST($1)])
   1136 
   1137 # AM_MISSING_HAS_RUN
   1138 # ------------------
   1139 # Define MISSING if not defined so far and test if it is modern enough.
   1140 # If it is, set am_missing_run to use it, otherwise, to nothing.
   1141 AC_DEFUN([AM_MISSING_HAS_RUN],
   1142 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
   1143 AC_REQUIRE_AUX_FILE([missing])dnl
   1144 if test x"${MISSING+set}" != xset; then
   1145   MISSING="\${SHELL} '$am_aux_dir/missing'"
   1146 fi
   1147 # Use eval to expand $SHELL
   1148 if eval "$MISSING --is-lightweight"; then
   1149   am_missing_run="$MISSING "
   1150 else
   1151   am_missing_run=
   1152   AC_MSG_WARN(['missing' script is too old or missing])
   1153 fi
   1154 ])
   1155 
   1156 # Helper functions for option handling.                     -*- Autoconf -*-
   1157 
   1158 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
   1159 #
   1160 # This file is free software; the Free Software Foundation
   1161 # gives unlimited permission to copy and/or distribute it,
   1162 # with or without modifications, as long as this notice is preserved.
   1163 
   1164 # _AM_MANGLE_OPTION(NAME)
   1165 # -----------------------
   1166 AC_DEFUN([_AM_MANGLE_OPTION],
   1167 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
   1168 
   1169 # _AM_SET_OPTION(NAME)
   1170 # --------------------
   1171 # Set option NAME.  Presently that only means defining a flag for this option.
   1172 AC_DEFUN([_AM_SET_OPTION],
   1173 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
   1174 
   1175 # _AM_SET_OPTIONS(OPTIONS)
   1176 # ------------------------
   1177 # OPTIONS is a space-separated list of Automake options.
   1178 AC_DEFUN([_AM_SET_OPTIONS],
   1179 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
   1180 
   1181 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
   1182 # -------------------------------------------
   1183 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
   1184 AC_DEFUN([_AM_IF_OPTION],
   1185 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
   1186 
   1187 # Copyright (C) 1999-2024 Free Software Foundation, Inc.
   1188 #
   1189 # This file is free software; the Free Software Foundation
   1190 # gives unlimited permission to copy and/or distribute it,
   1191 # with or without modifications, as long as this notice is preserved.
   1192 
   1193 # _AM_PROG_CC_C_O
   1194 # ---------------
   1195 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
   1196 # to automatically call this.
   1197 AC_DEFUN([_AM_PROG_CC_C_O],
   1198 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
   1199 AC_REQUIRE_AUX_FILE([compile])dnl
   1200 AC_LANG_PUSH([C])dnl
   1201 AC_CACHE_CHECK(
   1202   [whether $CC understands -c and -o together],
   1203   [am_cv_prog_cc_c_o],
   1204   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
   1205   # Make sure it works both with $CC and with simple cc.
   1206   # Following AC_PROG_CC_C_O, we do the test twice because some
   1207   # compilers refuse to overwrite an existing .o file with -o,
   1208   # though they will create one.
   1209   am_cv_prog_cc_c_o=yes
   1210   for am_i in 1 2; do
   1211     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
   1212          && test -f conftest2.$ac_objext; then
   1213       : OK
   1214     else
   1215       am_cv_prog_cc_c_o=no
   1216       break
   1217     fi
   1218   done
   1219   rm -f core conftest*
   1220   unset am_i])
   1221 if test "$am_cv_prog_cc_c_o" != yes; then
   1222    # Losing compiler, so override with the script.
   1223    # FIXME: It is wrong to rewrite CC.
   1224    # But if we don't then we get into trouble of one sort or another.
   1225    # A longer-term fix would be to have automake use am__CC in this case,
   1226    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
   1227    CC="$am_aux_dir/compile $CC"
   1228 fi
   1229 AC_LANG_POP([C])])
   1230 
   1231 # For backward compatibility.
   1232 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
   1233 
   1234 # Copyright (C) 1999-2024 Free Software Foundation, Inc.
   1235 #
   1236 # This file is free software; the Free Software Foundation
   1237 # gives unlimited permission to copy and/or distribute it,
   1238 # with or without modifications, as long as this notice is preserved.
   1239 
   1240 
   1241 # AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
   1242 # ---------------------------------------------------------------------------
   1243 # Adds support for distributing Python modules and packages.  To
   1244 # install modules, copy them to $(pythondir), using the python_PYTHON
   1245 # automake variable.  To install a package with the same name as the
   1246 # automake package, install to $(pkgpythondir), or use the
   1247 # pkgpython_PYTHON automake variable.
   1248 #
   1249 # The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
   1250 # locations to install python extension modules (shared libraries).
   1251 # Another macro is required to find the appropriate flags to compile
   1252 # extension modules.
   1253 #
   1254 # If your package is configured with a different prefix to python,
   1255 # users will have to add the install directory to the PYTHONPATH
   1256 # environment variable, or create a .pth file (see the python
   1257 # documentation for details).
   1258 #
   1259 # If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
   1260 # cause an error if the version of python installed on the system
   1261 # doesn't meet the requirement.  MINIMUM-VERSION should consist of
   1262 # numbers and dots only.
   1263 AC_DEFUN([AM_PATH_PYTHON],
   1264  [
   1265   dnl Find a Python interpreter.  Python versions prior to 2.0 are not
   1266   dnl supported. (2.0 was released on October 16, 2000).
   1267   m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
   1268 [python python3 dnl
   1269  python3.20 python3.19 python3.18 python3.17 python3.16 dnl
   1270  python3.15 python3.14 python3.13 python3.12 python3.11 python3.10 dnl
   1271  python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
   1272  python3.2 python3.1 python3.0 dnl
   1273  python2 dnl
   1274  python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
   1275  python2.0])
   1276 
   1277   AC_ARG_VAR([PYTHON], [the Python interpreter])
   1278 
   1279   m4_if([$1],[],[
   1280     dnl No version check is needed.
   1281     # Find any Python interpreter.
   1282     if test -z "$PYTHON"; then
   1283       AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
   1284     fi
   1285     am_display_PYTHON=python
   1286   ], [
   1287     dnl A version check is needed.
   1288     if test -n "$PYTHON"; then
   1289       # If the user set $PYTHON, use it and don't search something else.
   1290       AC_MSG_CHECKING([whether $PYTHON version is >= $1])
   1291       AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
   1292 			      [AC_MSG_RESULT([yes])],
   1293 			      [AC_MSG_RESULT([no])
   1294 			       AC_MSG_ERROR([Python interpreter is too old])])
   1295       am_display_PYTHON=$PYTHON
   1296     else
   1297       # Otherwise, try each interpreter until we find one that satisfies
   1298       # VERSION.
   1299       AC_CACHE_CHECK([for a Python interpreter with version >= $1],
   1300 	[am_cv_pathless_PYTHON],[
   1301 	for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
   1302 	  test "$am_cv_pathless_PYTHON" = none && break
   1303 	  AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
   1304 	done])
   1305       # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
   1306       if test "$am_cv_pathless_PYTHON" = none; then
   1307 	PYTHON=:
   1308       else
   1309         AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
   1310       fi
   1311       am_display_PYTHON=$am_cv_pathless_PYTHON
   1312     fi
   1313   ])
   1314 
   1315   if test "$PYTHON" = :; then
   1316     dnl Run any user-specified action, or abort.
   1317     m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
   1318   else
   1319 
   1320   dnl Query Python for its version number.  Although site.py simply uses
   1321   dnl sys.version[:3], printing that failed with Python 3.10, since the
   1322   dnl trailing zero was eliminated. So now we output just the major
   1323   dnl and minor version numbers, as numbers. Apparently the tertiary
   1324   dnl version is not of interest.
   1325   dnl
   1326   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
   1327     [am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[[:2]])"`])
   1328   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
   1329 
   1330   dnl At times, e.g., when building shared libraries, you may want
   1331   dnl to know which OS platform Python thinks this is.
   1332   dnl
   1333   AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
   1334     [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
   1335   AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
   1336 
   1337   dnl emacs-page
   1338   dnl If --with-python-sys-prefix is given, use the values of sys.prefix
   1339   dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
   1340   dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
   1341   dnl ${exec_prefix} variables.
   1342   dnl
   1343   dnl The two are made distinct variables so they can be overridden if
   1344   dnl need be, although general consensus is that you shouldn't need
   1345   dnl this separation.
   1346   dnl
   1347   dnl Also allow directly setting the prefixes via configure options,
   1348   dnl overriding any default.
   1349   dnl
   1350   if test "x$prefix" = xNONE; then
   1351     am__usable_prefix=$ac_default_prefix
   1352   else
   1353     am__usable_prefix=$prefix
   1354   fi
   1355 
   1356   # Allow user to request using sys.* values from Python,
   1357   # instead of the GNU $prefix values.
   1358   AC_ARG_WITH([python-sys-prefix],
   1359   [AS_HELP_STRING([--with-python-sys-prefix],
   1360                   [use Python's sys.prefix and sys.exec_prefix values])],
   1361   [am_use_python_sys=:],
   1362   [am_use_python_sys=false])
   1363 
   1364   # Allow user to override whatever the default Python prefix is.
   1365   AC_ARG_WITH([python_prefix],
   1366   [AS_HELP_STRING([--with-python_prefix],
   1367                   [override the default PYTHON_PREFIX])],
   1368   [am_python_prefix_subst=$withval
   1369    am_cv_python_prefix=$withval
   1370    AC_MSG_CHECKING([for explicit $am_display_PYTHON prefix])
   1371    AC_MSG_RESULT([$am_cv_python_prefix])],
   1372   [
   1373    if $am_use_python_sys; then
   1374      # using python sys.prefix value, not GNU
   1375      AC_CACHE_CHECK([for python default $am_display_PYTHON prefix],
   1376      [am_cv_python_prefix],
   1377      [am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`])
   1378 
   1379      dnl If sys.prefix is a subdir of $prefix, replace the literal value of
   1380      dnl $prefix with a variable reference so it can be overridden.
   1381      case $am_cv_python_prefix in
   1382      $am__usable_prefix*)
   1383        am__strip_prefix=`echo "$am__usable_prefix" | sed 's|.|.|g'`
   1384        am_python_prefix_subst=`echo "$am_cv_python_prefix" | sed "s,^$am__strip_prefix,\\${prefix},"`
   1385        ;;
   1386      *)
   1387        am_python_prefix_subst=$am_cv_python_prefix
   1388        ;;
   1389      esac
   1390    else # using GNU prefix value, not python sys.prefix
   1391      am_python_prefix_subst='${prefix}'
   1392      am_python_prefix=$am_python_prefix_subst
   1393      AC_MSG_CHECKING([for GNU default $am_display_PYTHON prefix])
   1394      AC_MSG_RESULT([$am_python_prefix])
   1395    fi])
   1396   # Substituting python_prefix_subst value.
   1397   AC_SUBST([PYTHON_PREFIX], [$am_python_prefix_subst])
   1398 
   1399   # emacs-page Now do it all over again for Python exec_prefix, but with yet
   1400   # another conditional: fall back to regular prefix if that was specified.
   1401   AC_ARG_WITH([python_exec_prefix],
   1402   [AS_HELP_STRING([--with-python_exec_prefix],
   1403                   [override the default PYTHON_EXEC_PREFIX])],
   1404   [am_python_exec_prefix_subst=$withval
   1405    am_cv_python_exec_prefix=$withval
   1406    AC_MSG_CHECKING([for explicit $am_display_PYTHON exec_prefix])
   1407    AC_MSG_RESULT([$am_cv_python_exec_prefix])],
   1408   [
   1409    # no explicit --with-python_exec_prefix, but if
   1410    # --with-python_prefix was given, use its value for python_exec_prefix too.
   1411    AS_IF([test -n "$with_python_prefix"],
   1412    [am_python_exec_prefix_subst=$with_python_prefix
   1413     am_cv_python_exec_prefix=$with_python_prefix
   1414     AC_MSG_CHECKING([for python_prefix-given $am_display_PYTHON exec_prefix])
   1415     AC_MSG_RESULT([$am_cv_python_exec_prefix])],
   1416    [
   1417     # Set am__usable_exec_prefix whether using GNU or Python values,
   1418     # since we use that variable for pyexecdir.
   1419     if test "x$exec_prefix" = xNONE; then
   1420       am__usable_exec_prefix=$am__usable_prefix
   1421     else
   1422       am__usable_exec_prefix=$exec_prefix
   1423     fi
   1424     #
   1425     if $am_use_python_sys; then # using python sys.exec_prefix, not GNU
   1426       AC_CACHE_CHECK([for python default $am_display_PYTHON exec_prefix],
   1427       [am_cv_python_exec_prefix],
   1428       [am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`])
   1429       dnl If sys.exec_prefix is a subdir of $exec_prefix, replace the
   1430       dnl literal value of $exec_prefix with a variable reference so it can
   1431       dnl be overridden.
   1432       case $am_cv_python_exec_prefix in
   1433       $am__usable_exec_prefix*)
   1434         am__strip_prefix=`echo "$am__usable_exec_prefix" | sed 's|.|.|g'`
   1435         am_python_exec_prefix_subst=`echo "$am_cv_python_exec_prefix" | sed "s,^$am__strip_prefix,\\${exec_prefix},"`
   1436         ;;
   1437       *)
   1438         am_python_exec_prefix_subst=$am_cv_python_exec_prefix
   1439         ;;
   1440      esac
   1441    else # using GNU $exec_prefix, not python sys.exec_prefix
   1442      am_python_exec_prefix_subst='${exec_prefix}'
   1443      am_python_exec_prefix=$am_python_exec_prefix_subst
   1444      AC_MSG_CHECKING([for GNU default $am_display_PYTHON exec_prefix])
   1445      AC_MSG_RESULT([$am_python_exec_prefix])
   1446    fi])])
   1447   # Substituting python_exec_prefix_subst.
   1448   AC_SUBST([PYTHON_EXEC_PREFIX], [$am_python_exec_prefix_subst])
   1449 
   1450   # Factor out some code duplication into this shell variable.
   1451   am_python_setup_sysconfig="\
   1452 import sys
   1453 # Prefer sysconfig over distutils.sysconfig, for better compatibility
   1454 # with python 3.x.  See automake bug#10227.
   1455 try:
   1456     import sysconfig
   1457 except ImportError:
   1458     can_use_sysconfig = 0
   1459 else:
   1460     can_use_sysconfig = 1
   1461 # Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
   1462 # <https://github.com/pypa/virtualenv/issues/118>
   1463 try:
   1464     from platform import python_implementation
   1465     if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
   1466         can_use_sysconfig = 0
   1467 except ImportError:
   1468     pass" # end of am_python_setup_sysconfig
   1469 
   1470   # More repeated code, for figuring out the installation scheme to use.
   1471   am_python_setup_scheme="if hasattr(sysconfig, 'get_default_scheme'):
   1472       scheme = sysconfig.get_default_scheme()
   1473     else:
   1474       scheme = sysconfig._get_default_scheme()
   1475     if scheme == 'posix_local':
   1476       if '$am_py_prefix' == '/usr':
   1477         scheme = 'deb_system' # should only happen during Debian package builds
   1478       else:
   1479         # Debian's default scheme installs to /usr/local/ but we want to
   1480         # follow the prefix, as we always have.
   1481         # See bugs#54412, #64837, et al.
   1482         scheme = 'posix_prefix'" # end of am_python_setup_scheme
   1483 
   1484   dnl emacs-page Set up 4 directories:
   1485 
   1486   dnl 1. pythondir: where to install python scripts.  This is the
   1487   dnl    site-packages directory, not the python standard library
   1488   dnl    directory as in early automake betas.  This behavior
   1489   dnl    is more consistent with lispdir.m4 for example.
   1490   dnl Query sysconfig or distutils (per above) for this directory.
   1491   dnl
   1492   AC_CACHE_CHECK([for $am_display_PYTHON script directory (pythondir)],
   1493   [am_cv_python_pythondir],
   1494   [if test "x$am_cv_python_prefix" = x; then
   1495      am_py_prefix=$am__usable_prefix
   1496    else
   1497      am_py_prefix=$am_cv_python_prefix
   1498    fi
   1499    am_cv_python_pythondir=`$PYTHON -c "
   1500 $am_python_setup_sysconfig
   1501 if can_use_sysconfig:
   1502   try:
   1503     $am_python_setup_scheme
   1504     sitedir = sysconfig.get_path('purelib', scheme, vars={'base':'$am_py_prefix'})
   1505   except:
   1506     sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
   1507 else:
   1508   from distutils import sysconfig
   1509   sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
   1510 sys.stdout.write(sitedir)"`
   1511    #
   1512    case $am_cv_python_pythondir in
   1513    $am_py_prefix*)
   1514      am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
   1515      am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,\\${PYTHON_PREFIX},"`
   1516      ;;
   1517    *)
   1518      case $am_py_prefix in
   1519        /usr|/System*) ;;
   1520        *) am_cv_python_pythondir="\${PYTHON_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
   1521           ;;
   1522      esac
   1523      ;;
   1524    esac
   1525   ])
   1526   AC_SUBST([pythondir], [$am_cv_python_pythondir])
   1527 
   1528   dnl 2. pkgpythondir: $PACKAGE directory under pythondir.  Was
   1529   dnl    PYTHON_SITE_PACKAGE in previous betas, but this naming is
   1530   dnl    more consistent with the rest of automake.
   1531   dnl
   1532   AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
   1533 
   1534   dnl 3. pyexecdir: directory for installing python extension modules
   1535   dnl    (shared libraries).
   1536   dnl Query sysconfig or distutils for this directory.
   1537   dnl Much of this is the same as for prefix setup above.
   1538   dnl
   1539   AC_CACHE_CHECK([for $am_display_PYTHON extension module directory (pyexecdir)],
   1540   [am_cv_python_pyexecdir],
   1541   [if test "x$am_cv_python_exec_prefix" = x; then
   1542      am_py_exec_prefix=$am__usable_exec_prefix
   1543    else
   1544      am_py_exec_prefix=$am_cv_python_exec_prefix
   1545    fi
   1546    am_cv_python_pyexecdir=`$PYTHON -c "
   1547 $am_python_setup_sysconfig
   1548 if can_use_sysconfig:
   1549   try:
   1550     $am_python_setup_scheme
   1551     sitedir = sysconfig.get_path('platlib', scheme, vars={'platbase':'$am_py_exec_prefix'})
   1552   except:
   1553     sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_exec_prefix'})
   1554 else:
   1555   from distutils import sysconfig
   1556   sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_exec_prefix')
   1557 sys.stdout.write(sitedir)"`
   1558    #
   1559    case $am_cv_python_pyexecdir in
   1560    $am_py_exec_prefix*)
   1561      am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
   1562      am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,\\${PYTHON_EXEC_PREFIX},"`
   1563      ;;
   1564    *)
   1565      case $am_py_exec_prefix in
   1566        /usr|/System*) ;;
   1567        *) am_cv_python_pyexecdir="\${PYTHON_EXEC_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
   1568           ;;
   1569      esac
   1570      ;;
   1571    esac
   1572   ])
   1573   AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
   1574 
   1575   dnl 4. pkgpyexecdir: $(pyexecdir)/$(PACKAGE)
   1576   dnl
   1577   AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
   1578 
   1579   dnl Run any user-specified action.
   1580   $2
   1581   fi
   1582 ])
   1583 
   1584 
   1585 # AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
   1586 # ---------------------------------------------------------------------------
   1587 # Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
   1588 # Run ACTION-IF-FALSE otherwise.
   1589 # This test uses sys.hexversion instead of the string equivalent (first
   1590 # word of sys.version), in order to cope with versions such as 2.2c1.
   1591 # This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
   1592 AC_DEFUN([AM_PYTHON_CHECK_VERSION],
   1593  [prog="import sys
   1594 # split strings by '.' and convert to numeric.  Append some zeros
   1595 # because we need at least 4 digits for the hex conversion.
   1596 # map returns an iterator in Python 3.0 and a list in 2.x
   1597 minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
   1598 minverhex = 0
   1599 # xrange is not present in Python 3.0 and range returns an iterator
   1600 for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
   1601 sys.exit(sys.hexversion < minverhex)"
   1602   AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
   1603 
   1604 # Copyright (C) 2022-2024 Free Software Foundation, Inc.
   1605 #
   1606 # This file is free software; the Free Software Foundation
   1607 # gives unlimited permission to copy and/or distribute it,
   1608 # with or without modifications, as long as this notice is preserved.
   1609 
   1610 # _AM_PROG_RM_F
   1611 # ---------------
   1612 # Check whether 'rm -f' without any arguments works.
   1613 # https://bugs.gnu.org/10828
   1614 AC_DEFUN([_AM_PROG_RM_F],
   1615 [am__rm_f_notfound=
   1616 AS_IF([(rm -f && rm -fr && rm -rf) 2>/dev/null], [], [am__rm_f_notfound='""'])
   1617 AC_SUBST(am__rm_f_notfound)
   1618 ])
   1619 
   1620 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
   1621 #
   1622 # This file is free software; the Free Software Foundation
   1623 # gives unlimited permission to copy and/or distribute it,
   1624 # with or without modifications, as long as this notice is preserved.
   1625 
   1626 # AM_RUN_LOG(COMMAND)
   1627 # -------------------
   1628 # Run COMMAND, save the exit status in ac_status, and log it.
   1629 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
   1630 AC_DEFUN([AM_RUN_LOG],
   1631 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
   1632    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
   1633    ac_status=$?
   1634    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
   1635    (exit $ac_status); }])
   1636 
   1637 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
   1638 
   1639 # Copyright (C) 1996-2024 Free Software Foundation, Inc.
   1640 #
   1641 # This file is free software; the Free Software Foundation
   1642 # gives unlimited permission to copy and/or distribute it,
   1643 # with or without modifications, as long as this notice is preserved.
   1644 
   1645 # _AM_SLEEP_FRACTIONAL_SECONDS
   1646 # ----------------------------
   1647 AC_DEFUN([_AM_SLEEP_FRACTIONAL_SECONDS], [dnl
   1648 AC_CACHE_CHECK([whether sleep supports fractional seconds],
   1649                am_cv_sleep_fractional_seconds, [dnl
   1650 AS_IF([sleep 0.001 2>/dev/null], [am_cv_sleep_fractional_seconds=yes],
   1651                                  [am_cv_sleep_fractional_seconds=no])
   1652 ])])
   1653 
   1654 # _AM_FILESYSTEM_TIMESTAMP_RESOLUTION
   1655 # -----------------------------------
   1656 # Determine the filesystem's resolution for file modification
   1657 # timestamps.  The coarsest we know of is FAT, with a resolution
   1658 # of only two seconds, even with the most recent "exFAT" extensions.
   1659 # The finest (e.g. ext4 with large inodes, XFS, ZFS) is one
   1660 # nanosecond, matching clock_gettime.  However, it is probably not
   1661 # possible to delay execution of a shell script for less than one
   1662 # millisecond, due to process creation overhead and scheduling
   1663 # granularity, so we don't check for anything finer than that. (See below.)
   1664 AC_DEFUN([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION], [dnl
   1665 AC_REQUIRE([_AM_SLEEP_FRACTIONAL_SECONDS])
   1666 AC_CACHE_CHECK([filesystem timestamp resolution],
   1667                am_cv_filesystem_timestamp_resolution, [dnl
   1668 # Default to the worst case.
   1669 am_cv_filesystem_timestamp_resolution=2
   1670 
   1671 # Only try to go finer than 1 sec if sleep can do it.
   1672 # Don't try 1 sec, because if 0.01 sec and 0.1 sec don't work,
   1673 # - 1 sec is not much of a win compared to 2 sec, and
   1674 # - it takes 2 seconds to perform the test whether 1 sec works.
   1675 # 
   1676 # Instead, just use the default 2s on platforms that have 1s resolution,
   1677 # accept the extra 1s delay when using $sleep in the Automake tests, in
   1678 # exchange for not incurring the 2s delay for running the test for all
   1679 # packages.
   1680 #
   1681 am_try_resolutions=
   1682 if test "$am_cv_sleep_fractional_seconds" = yes; then
   1683   # Even a millisecond often causes a bunch of false positives,
   1684   # so just try a hundredth of a second. The time saved between .001 and
   1685   # .01 is not terribly consequential.
   1686   am_try_resolutions="0.01 0.1 $am_try_resolutions"
   1687 fi
   1688 
   1689 # In order to catch current-generation FAT out, we must *modify* files
   1690 # that already exist; the *creation* timestamp is finer.  Use names
   1691 # that make ls -t sort them differently when they have equal
   1692 # timestamps than when they have distinct timestamps, keeping
   1693 # in mind that ls -t prints the *newest* file first.
   1694 rm -f conftest.ts?
   1695 : > conftest.ts1
   1696 : > conftest.ts2
   1697 : > conftest.ts3
   1698 
   1699 # Make sure ls -t actually works.  Do 'set' in a subshell so we don't
   1700 # clobber the current shell's arguments. (Outer-level square brackets
   1701 # are removed by m4; they're present so that m4 does not expand
   1702 # <dollar><star>; be careful, easy to get confused.)
   1703 if (
   1704      set X `[ls -t conftest.ts[12]]` &&
   1705      {
   1706        test "$[]*" != "X conftest.ts1 conftest.ts2" ||
   1707        test "$[]*" != "X conftest.ts2 conftest.ts1";
   1708      }
   1709 ); then :; else
   1710   # If neither matched, then we have a broken ls.  This can happen
   1711   # if, for instance, CONFIG_SHELL is bash and it inherits a
   1712   # broken ls alias from the environment.  This has actually
   1713   # happened.  Such a system could not be considered "sane".
   1714   _AS_ECHO_UNQUOTED(
   1715     ["Bad output from ls -t: \"`[ls -t conftest.ts[12]]`\""],
   1716     [AS_MESSAGE_LOG_FD])
   1717   AC_MSG_FAILURE([ls -t produces unexpected output.
   1718 Make sure there is not a broken ls alias in your environment.])
   1719 fi
   1720 
   1721 for am_try_res in $am_try_resolutions; do
   1722   # Any one fine-grained sleep might happen to cross the boundary
   1723   # between two values of a coarser actual resolution, but if we do
   1724   # two fine-grained sleeps in a row, at least one of them will fall
   1725   # entirely within a coarse interval.
   1726   echo alpha > conftest.ts1
   1727   sleep $am_try_res
   1728   echo beta > conftest.ts2
   1729   sleep $am_try_res
   1730   echo gamma > conftest.ts3
   1731 
   1732   # We assume that 'ls -t' will make use of high-resolution
   1733   # timestamps if the operating system supports them at all.
   1734   if (set X `ls -t conftest.ts?` &&
   1735       test "$[]2" = conftest.ts3 &&
   1736       test "$[]3" = conftest.ts2 &&
   1737       test "$[]4" = conftest.ts1); then
   1738     #
   1739     # Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
   1740     # because we don't need to test make.
   1741     make_ok=true
   1742     if test $am_try_res != 1; then
   1743       # But if we've succeeded so far with a subsecond resolution, we
   1744       # have one more thing to check: make. It can happen that
   1745       # everything else supports the subsecond mtimes, but make doesn't;
   1746       # notably on macOS, which ships make 3.81 from 2006 (the last one
   1747       # released under GPLv2). https://bugs.gnu.org/68808
   1748       # 
   1749       # We test $MAKE if it is defined in the environment, else "make".
   1750       # It might get overridden later, but our hope is that in practice
   1751       # it does not matter: it is the system "make" which is (by far)
   1752       # the most likely to be broken, whereas if the user overrides it,
   1753       # probably they did so with a better, or at least not worse, make.
   1754       # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
   1755       #
   1756       # Create a Makefile (real tab character here):
   1757       rm -f conftest.mk
   1758       echo 'conftest.ts1: conftest.ts2' >conftest.mk
   1759       echo '	touch conftest.ts2' >>conftest.mk
   1760       #
   1761       # Now, running
   1762       #   touch conftest.ts1; touch conftest.ts2; make
   1763       # should touch ts1 because ts2 is newer. This could happen by luck,
   1764       # but most often, it will fail if make's support is insufficient. So
   1765       # test for several consecutive successes.
   1766       #
   1767       # (We reuse conftest.ts[12] because we still want to modify existing
   1768       # files, not create new ones, per above.)
   1769       n=0
   1770       make=${MAKE-make}
   1771       until test $n -eq 3; do
   1772         echo one > conftest.ts1
   1773         sleep $am_try_res
   1774         echo two > conftest.ts2 # ts2 should now be newer than ts1
   1775         if $make -f conftest.mk | grep 'up to date' >/dev/null; then
   1776           make_ok=false
   1777           break # out of $n loop
   1778         fi
   1779         n=`expr $n + 1`
   1780       done
   1781     fi
   1782     #
   1783     if $make_ok; then
   1784       # Everything we know to check worked out, so call this resolution good.
   1785       am_cv_filesystem_timestamp_resolution=$am_try_res
   1786       break # out of $am_try_res loop
   1787     fi
   1788     # Otherwise, we'll go on to check the next resolution.
   1789   fi
   1790 done
   1791 rm -f conftest.ts?
   1792 # (end _am_filesystem_timestamp_resolution)
   1793 ])])
   1794 
   1795 # AM_SANITY_CHECK
   1796 # ---------------
   1797 AC_DEFUN([AM_SANITY_CHECK],
   1798 [AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION])
   1799 # This check should not be cached, as it may vary across builds of
   1800 # different projects.
   1801 AC_MSG_CHECKING([whether build environment is sane])
   1802 # Reject unsafe characters in $srcdir or the absolute working directory
   1803 # name.  Accept space and tab only in the latter.
   1804 am_lf='
   1805 '
   1806 case `pwd` in
   1807   *[[\\\"\#\$\&\'\`$am_lf]]*)
   1808     AC_MSG_ERROR([unsafe absolute working directory name]);;
   1809 esac
   1810 case $srcdir in
   1811   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
   1812     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
   1813 esac
   1814 
   1815 # Do 'set' in a subshell so we don't clobber the current shell's
   1816 # arguments.  Must try -L first in case configure is actually a
   1817 # symlink; some systems play weird games with the mod time of symlinks
   1818 # (eg FreeBSD returns the mod time of the symlink's containing
   1819 # directory).
   1820 am_build_env_is_sane=no
   1821 am_has_slept=no
   1822 rm -f conftest.file
   1823 for am_try in 1 2; do
   1824   echo "timestamp, slept: $am_has_slept" > conftest.file
   1825   if (
   1826     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
   1827     if test "$[]*" = "X"; then
   1828       # -L didn't work.
   1829       set X `ls -t "$srcdir/configure" conftest.file`
   1830     fi
   1831     test "$[]2" = conftest.file
   1832   ); then
   1833     am_build_env_is_sane=yes
   1834     break
   1835   fi
   1836   # Just in case.
   1837   sleep "$am_cv_filesystem_timestamp_resolution"
   1838   am_has_slept=yes
   1839 done
   1840 
   1841 AC_MSG_RESULT([$am_build_env_is_sane])
   1842 if test "$am_build_env_is_sane" = no; then
   1843   AC_MSG_ERROR([newly created file is older than distributed files!
   1844 Check your system clock])
   1845 fi
   1846 
   1847 # If we didn't sleep, we still need to ensure time stamps of config.status and
   1848 # generated files are strictly newer.
   1849 am_sleep_pid=
   1850 AS_IF([test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1],, [dnl
   1851   ( sleep "$am_cv_filesystem_timestamp_resolution" ) &
   1852   am_sleep_pid=$!
   1853 ])
   1854 AC_CONFIG_COMMANDS_PRE(
   1855   [AC_MSG_CHECKING([that generated files are newer than configure])
   1856    if test -n "$am_sleep_pid"; then
   1857      # Hide warnings about reused PIDs.
   1858      wait $am_sleep_pid 2>/dev/null
   1859    fi
   1860    AC_MSG_RESULT([done])])
   1861 rm -f conftest.file
   1862 ])
   1863 
   1864 # Copyright (C) 2009-2024 Free Software Foundation, Inc.
   1865 #
   1866 # This file is free software; the Free Software Foundation
   1867 # gives unlimited permission to copy and/or distribute it,
   1868 # with or without modifications, as long as this notice is preserved.
   1869 
   1870 # _AM_SILENT_RULES
   1871 # ----------------
   1872 # Enable less verbose build rules support.
   1873 AC_DEFUN([_AM_SILENT_RULES],
   1874 [AM_DEFAULT_VERBOSITY=1
   1875 AC_ARG_ENABLE([silent-rules], [dnl
   1876 AS_HELP_STRING(
   1877   [--enable-silent-rules],
   1878   [less verbose build output (undo: "make V=1")])
   1879 AS_HELP_STRING(
   1880   [--disable-silent-rules],
   1881   [verbose build output (undo: "make V=0")])dnl
   1882 ])
   1883 dnl
   1884 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
   1885 dnl do not support nested variable expansions.
   1886 dnl See automake bug#9928 and bug#10237.
   1887 am_make=${MAKE-make}
   1888 AC_CACHE_CHECK([whether $am_make supports nested variables],
   1889    [am_cv_make_support_nested_variables],
   1890    [if AS_ECHO([['TRUE=$(BAR$(V))
   1891 BAR0=false
   1892 BAR1=true
   1893 V=1
   1894 am__doit:
   1895 	@$(TRUE)
   1896 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
   1897   am_cv_make_support_nested_variables=yes
   1898 else
   1899   am_cv_make_support_nested_variables=no
   1900 fi])
   1901 AC_SUBST([AM_V])dnl
   1902 AM_SUBST_NOTMAKE([AM_V])dnl
   1903 AC_SUBST([AM_DEFAULT_V])dnl
   1904 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
   1905 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
   1906 AM_BACKSLASH='\'
   1907 AC_SUBST([AM_BACKSLASH])dnl
   1908 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
   1909 dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls
   1910 dnl to AM_SILENT_RULES to change the default value.
   1911 AC_CONFIG_COMMANDS_PRE([dnl
   1912 case $enable_silent_rules in @%:@ (((
   1913   yes) AM_DEFAULT_VERBOSITY=0;;
   1914    no) AM_DEFAULT_VERBOSITY=1;;
   1915 esac
   1916 if test $am_cv_make_support_nested_variables = yes; then
   1917   dnl Using '$V' instead of '$(V)' breaks IRIX make.
   1918   AM_V='$(V)'
   1919   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
   1920 else
   1921   AM_V=$AM_DEFAULT_VERBOSITY
   1922   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
   1923 fi
   1924 ])dnl
   1925 ])
   1926 
   1927 # AM_SILENT_RULES([DEFAULT])
   1928 # --------------------------
   1929 # Set the default verbosity level to DEFAULT ("yes" being less verbose, "no" or
   1930 # empty being verbose).
   1931 AC_DEFUN([AM_SILENT_RULES],
   1932 [AC_REQUIRE([_AM_SILENT_RULES])
   1933 AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])])
   1934 
   1935 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
   1936 #
   1937 # This file is free software; the Free Software Foundation
   1938 # gives unlimited permission to copy and/or distribute it,
   1939 # with or without modifications, as long as this notice is preserved.
   1940 
   1941 # AM_PROG_INSTALL_STRIP
   1942 # ---------------------
   1943 # One issue with vendor 'install' (even GNU) is that you can't
   1944 # specify the program used to strip binaries.  This is especially
   1945 # annoying in cross-compiling environments, where the build's strip
   1946 # is unlikely to handle the host's binaries.
   1947 # Fortunately install-sh will honor a STRIPPROG variable, so we
   1948 # always use install-sh in "make install-strip", and initialize
   1949 # STRIPPROG with the value of the STRIP variable (set by the user).
   1950 AC_DEFUN([AM_PROG_INSTALL_STRIP],
   1951 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
   1952 # Installed binaries are usually stripped using 'strip' when the user
   1953 # run "make install-strip".  However 'strip' might not be the right
   1954 # tool to use in cross-compilation environments, therefore Automake
   1955 # will honor the 'STRIP' environment variable to overrule this program.
   1956 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
   1957 if test "$cross_compiling" != no; then
   1958   AC_CHECK_TOOL([STRIP], [strip], :)
   1959 fi
   1960 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
   1961 AC_SUBST([INSTALL_STRIP_PROGRAM])])
   1962 
   1963 # Copyright (C) 2006-2024 Free Software Foundation, Inc.
   1964 #
   1965 # This file is free software; the Free Software Foundation
   1966 # gives unlimited permission to copy and/or distribute it,
   1967 # with or without modifications, as long as this notice is preserved.
   1968 
   1969 # _AM_SUBST_NOTMAKE(VARIABLE)
   1970 # ---------------------------
   1971 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
   1972 # This macro is traced by Automake.
   1973 AC_DEFUN([_AM_SUBST_NOTMAKE])
   1974 
   1975 # AM_SUBST_NOTMAKE(VARIABLE)
   1976 # --------------------------
   1977 # Public sister of _AM_SUBST_NOTMAKE.
   1978 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
   1979 
   1980 # Check how to create a tarball.                            -*- Autoconf -*-
   1981 
   1982 # Copyright (C) 2004-2024 Free Software Foundation, Inc.
   1983 #
   1984 # This file is free software; the Free Software Foundation
   1985 # gives unlimited permission to copy and/or distribute it,
   1986 # with or without modifications, as long as this notice is preserved.
   1987 
   1988 # _AM_PROG_TAR(FORMAT)
   1989 # --------------------
   1990 # Check how to create a tarball in format FORMAT.
   1991 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
   1992 #
   1993 # Substitute a variable $(am__tar) that is a command
   1994 # writing to stdout a FORMAT-tarball containing the directory
   1995 # $tardir.
   1996 #     tardir=directory && $(am__tar) > result.tar
   1997 #
   1998 # Substitute a variable $(am__untar) that extract such
   1999 # a tarball read from stdin.
   2000 #     $(am__untar) < result.tar
   2001 #
   2002 AC_DEFUN([_AM_PROG_TAR],
   2003 [# Always define AMTAR for backward compatibility.  Yes, it's still used
   2004 # in the wild :-(  We should find a proper way to deprecate it ...
   2005 AC_SUBST([AMTAR], ['$${TAR-tar}'])
   2006 
   2007 # We'll loop over all known methods to create a tar archive until one works.
   2008 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
   2009 
   2010 m4_if([$1], [v7],
   2011   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
   2012 
   2013   [m4_case([$1],
   2014     [ustar],
   2015      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
   2016       # There is notably a 21 bits limit for the UID and the GID.  In fact,
   2017       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
   2018       # and bug#13588).
   2019       am_max_uid=2097151 # 2^21 - 1
   2020       am_max_gid=$am_max_uid
   2021       # The $UID and $GID variables are not portable, so we need to resort
   2022       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
   2023       # below are definitely unexpected, so allow the users to see them
   2024       # (that is, avoid stderr redirection).
   2025       am_uid=`id -u || echo unknown`
   2026       am_gid=`id -g || echo unknown`
   2027       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
   2028       if test x$am_uid = xunknown; then
   2029         AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work])
   2030       elif test $am_uid -le $am_max_uid; then
   2031         AC_MSG_RESULT([yes])
   2032       else
   2033         AC_MSG_RESULT([no])
   2034         _am_tools=none
   2035       fi
   2036       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
   2037       if test x$gm_gid = xunknown; then
   2038         AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work])
   2039       elif test $am_gid -le $am_max_gid; then
   2040         AC_MSG_RESULT([yes])
   2041       else
   2042         AC_MSG_RESULT([no])
   2043         _am_tools=none
   2044       fi],
   2045 
   2046   [pax],
   2047     [],
   2048 
   2049   [m4_fatal([Unknown tar format])])
   2050 
   2051   AC_MSG_CHECKING([how to create a $1 tar archive])
   2052 
   2053   # Go ahead even if we have the value already cached.  We do so because we
   2054   # need to set the values for the 'am__tar' and 'am__untar' variables.
   2055   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
   2056 
   2057   for _am_tool in $_am_tools; do
   2058     case $_am_tool in
   2059     gnutar)
   2060       for _am_tar in tar gnutar gtar; do
   2061         AM_RUN_LOG([$_am_tar --version]) && break
   2062       done
   2063       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
   2064       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
   2065       am__untar="$_am_tar -xf -"
   2066       ;;
   2067     plaintar)
   2068       # Must skip GNU tar: if it does not support --format= it doesn't create
   2069       # ustar tarball either.
   2070       (tar --version) >/dev/null 2>&1 && continue
   2071       am__tar='tar chf - "$$tardir"'
   2072       am__tar_='tar chf - "$tardir"'
   2073       am__untar='tar xf -'
   2074       ;;
   2075     pax)
   2076       am__tar='pax -L -x $1 -w "$$tardir"'
   2077       am__tar_='pax -L -x $1 -w "$tardir"'
   2078       am__untar='pax -r'
   2079       ;;
   2080     cpio)
   2081       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
   2082       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
   2083       am__untar='cpio -i -H $1 -d'
   2084       ;;
   2085     none)
   2086       am__tar=false
   2087       am__tar_=false
   2088       am__untar=false
   2089       ;;
   2090     esac
   2091 
   2092     # If the value was cached, stop now.  We just wanted to have am__tar
   2093     # and am__untar set.
   2094     test -n "${am_cv_prog_tar_$1}" && break
   2095 
   2096     # tar/untar a dummy directory, and stop if the command works.
   2097     rm -rf conftest.dir
   2098     mkdir conftest.dir
   2099     echo GrepMe > conftest.dir/file
   2100     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
   2101     rm -rf conftest.dir
   2102     if test -s conftest.tar; then
   2103       AM_RUN_LOG([$am__untar <conftest.tar])
   2104       AM_RUN_LOG([cat conftest.dir/file])
   2105       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
   2106     fi
   2107   done
   2108   rm -rf conftest.dir
   2109 
   2110   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
   2111   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
   2112 
   2113 AC_SUBST([am__tar])
   2114 AC_SUBST([am__untar])
   2115 ]) # _AM_PROG_TAR
   2116 
   2117 # Copyright (C) 2022-2024 Free Software Foundation, Inc.
   2118 #
   2119 # This file is free software; the Free Software Foundation
   2120 # gives unlimited permission to copy and/or distribute it,
   2121 # with or without modifications, as long as this notice is preserved.
   2122 
   2123 # _AM_PROG_XARGS_N
   2124 # ----------------
   2125 # Check whether 'xargs -n' works.  It should work everywhere, so the fallback
   2126 # is not optimized at all as we never expect to use it.
   2127 AC_DEFUN([_AM_PROG_XARGS_N],
   2128 [AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl
   2129 AS_IF([test "`echo 1 2 3 | xargs -n2 echo`" = "1 2
   2130 3"], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])])
   2131 AS_IF([test "$am_cv_xargs_n_works" = yes], [am__xargs_n='xargs -n'], [dnl
   2132   am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" | while read am__xargs_n_arg; do "$@" "$am__xargs_n_arg"; done; }'
   2133 ])dnl
   2134 AC_SUBST(am__xargs_n)
   2135 ])
   2136 
   2137 m4_include([m4/ax_check_compile_flag.m4])
   2138 m4_include([m4/ax_check_link_flag.m4])
   2139 m4_include([m4/ax_check_openssl.m4])
   2140 m4_include([m4/ax_gcc_func_attribute.m4])
   2141 m4_include([m4/ax_jemalloc.m4])
   2142 m4_include([m4/ax_lib_lmdb.m4])
   2143 m4_include([m4/ax_posix_shell.m4])
   2144 m4_include([m4/ax_prog_cc_for_build.m4])
   2145 m4_include([m4/ax_pthread.m4])
   2146 m4_include([m4/ax_restore_flags.m4])
   2147 m4_include([m4/ax_save_flags.m4])
   2148 m4_include([m4/libtool.m4])
   2149 m4_include([m4/ltoptions.m4])
   2150 m4_include([m4/ltsugar.m4])
   2151 m4_include([m4/ltversion.m4])
   2152 m4_include([m4/lt~obsolete.m4])
   2153 m4_include([m4/pkg-modversion.m4])
   2154