aclocal.m4

   1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
   4
   5 # This file is free software; the Free Software Foundation
   6 # gives unlimited permission to copy and/or distribute it,
   7 # with or without modifications, as long as this notice is preserved.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  12 # PARTICULAR PURPOSE.
  13
  14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
  15 # ===========================================================================
  16 #     https://www.gnu.org/software/autoconf-archive/ax_python_module.html
  17 # ===========================================================================
  18 #
  19 # SYNOPSIS
  20 #
  21 #   AX_PYTHON_MODULE(modname[, fatal, python])
  22 #
  23 # DESCRIPTION
  24 #
  25 #   Checks for Python module.
  26 #
  27 #   If fatal is non-empty then absence of a module will trigger an error.
  28 #   The third parameter can either be "python" for Python 2 or "python3" for
  29 #   Python 3; defaults to Python 3.
  30 #
  31 # LICENSE
  32 #
  33 #   Copyright (c) 2008 Andrew Collier
  34 #
  35 #   Copying and distribution of this file, with or without modification, are
  36 #   permitted in any medium without royalty provided the copyright notice
  37 #   and this notice are preserved. This file is offered as-is, without any
  38 #   warranty.
  39
  40 #serial 9
  41
  42 AU_ALIAS([AC_PYTHON_MODULE], [AX_PYTHON_MODULE])
  43 AC_DEFUN([AX_PYTHON_MODULE],[
  44     if test -z $PYTHON;
  45     then
  46         if test -z "$3";
  47         then
  48             PYTHON="python3"
  49         else
  50             PYTHON="$3"
  51         fi
  52     fi
  53     PYTHON_NAME=`basename $PYTHON`
  54     AC_MSG_CHECKING($PYTHON_NAME module: $1)
  55     $PYTHON -c "import $1" 2>/dev/null
  56     if test $? -eq 0;
  57     then
  58         AC_MSG_RESULT(yes)
  59         eval AS_TR_CPP(HAVE_PYMOD_$1)=yes
  60     else
  61         AC_MSG_RESULT(no)
  62         eval AS_TR_CPP(HAVE_PYMOD_$1)=no
  63         #
  64         if test -n "$2"
  65         then
  66             AC_MSG_ERROR(failed to find required module $1)
  67             exit 1
  68         fi
  69     fi
  70 ])
  71
  72 # pkg.m4 - Macros to locate and use pkg-config.   -*- Autoconf -*-
  73 # serial 12 (pkg-config-0.29.2)
  74
  75 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
  76 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
  77 dnl
  78 dnl This program is free software; you can redistribute it and/or modify
  79 dnl it under the terms of the GNU General Public License as published by
  80 dnl the Free Software Foundation; either version 2 of the License, or
  81 dnl (at your option) any later version.
  82 dnl
  83 dnl This program is distributed in the hope that it will be useful, but
  84 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
  85 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  86 dnl General Public License for more details.
  87 dnl
  88 dnl You should have received a copy of the GNU General Public License
  89 dnl along with this program; if not, write to the Free Software
  90 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  91 dnl 02111-1307, USA.
  92 dnl
  93 dnl As a special exception to the GNU General Public License, if you
  94 dnl distribute this file as part of a program that contains a
  95 dnl configuration script generated by Autoconf, you may include it under
  96 dnl the same distribution terms that you use for the rest of that
  97 dnl program.
  98
  99 dnl PKG_PREREQ(MIN-VERSION)
 100 dnl -----------------------
 101 dnl Since: 0.29
 102 dnl
 103 dnl Verify that the version of the pkg-config macros are at least
 104 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
 105 dnl installed version of pkg-config, this checks the developer's version
 106 dnl of pkg.m4 when generating configure.
 107 dnl
 108 dnl To ensure that this macro is defined, also add:
 109 dnl m4_ifndef([PKG_PREREQ],
 110 dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
 111 dnl
 112 dnl See the "Since" comment for each macro you use to see what version
 113 dnl of the macros you require.
 114 m4_defun([PKG_PREREQ],
 115 [m4_define([PKG_MACROS_VERSION], [0.29.2])
 116 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
 117     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 118 ])dnl PKG_PREREQ
 119
 120 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION], [ACTION-IF-NOT-FOUND])
 121 dnl ---------------------------------------------------------
 122 dnl Since: 0.16
 123 dnl
 124 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
 125 dnl first found in the path. Checks that the version of pkg-config found
 126 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
 127 dnl used since that's the first version where most current features of
 128 dnl pkg-config existed.
 129 dnl
 130 dnl If pkg-config is not found or older than specified, it will result
 131 dnl in an empty PKG_CONFIG variable. To avoid widespread issues with
 132 dnl scripts not checking it, ACTION-IF-NOT-FOUND defaults to aborting.
 133 dnl You can specify [PKG_CONFIG=false] as an action instead, which would
 134 dnl result in pkg-config tests failing, but no bogus error messages.
 135 AC_DEFUN([PKG_PROG_PKG_CONFIG],
 136 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
 137 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
 138 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
 139 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
 140 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
 141 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
 142
 143 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 144         AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
 145 fi
 146 if test -n "$PKG_CONFIG"; then
 147         _pkg_min_version=m4_default([$1], [0.9.0])
 148         AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
 149         if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
 150                 AC_MSG_RESULT([yes])
 151         else
 152                 AC_MSG_RESULT([no])
 153                 PKG_CONFIG=""
 154         fi
 155 fi
 156 if test -z "$PKG_CONFIG"; then
 157         m4_default([$2], [AC_MSG_ERROR([pkg-config not found])])
 158 fi[]dnl
 159 ])dnl PKG_PROG_PKG_CONFIG
 160
 161 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 162 dnl -------------------------------------------------------------------
 163 dnl Since: 0.18
 164 dnl
 165 dnl Check to see whether a particular set of modules exists. Similar to
 166 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
 167 dnl
 168 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 169 dnl only at the first occurrence in configure.ac, so if the first place
 170 dnl it's called might be skipped (such as if it is within an "if", you
 171 dnl have to call PKG_CHECK_EXISTS manually
 172 AC_DEFUN([PKG_CHECK_EXISTS],
 173 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 174 if test -n "$PKG_CONFIG" && \
 175     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
 176   m4_default([$2], [:])
 177 m4_ifvaln([$3], [else
 178   $3])dnl
 179 fi])
 180
 181 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
 182 dnl ---------------------------------------------
 183 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
 184 dnl pkg_failed based on the result.
 185 m4_define([_PKG_CONFIG],
 186 [if test -n "$$1"; then
 187     pkg_cv_[]$1="$$1"
 188  elif test -n "$PKG_CONFIG"; then
 189     PKG_CHECK_EXISTS([$3],
 190                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
 191                       test "x$?" != "x0" && pkg_failed=yes ],
 192                      [pkg_failed=yes])
 193  else
 194     pkg_failed=untried
 195 fi[]dnl
 196 ])dnl _PKG_CONFIG
 197
 198 dnl _PKG_SHORT_ERRORS_SUPPORTED
 199 dnl ---------------------------
 200 dnl Internal check to see if pkg-config supports short errors.
 201 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
 202 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 203 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
 204         _pkg_short_errors_supported=yes
 205 else
 206         _pkg_short_errors_supported=no
 207 fi[]dnl
 208 ])dnl _PKG_SHORT_ERRORS_SUPPORTED
 209
 210
 211 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 212 dnl   [ACTION-IF-NOT-FOUND])
 213 dnl --------------------------------------------------------------
 214 dnl Since: 0.4.0
 215 dnl
 216 dnl Note that if there is a possibility the first call to
 217 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
 218 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
 219 AC_DEFUN([PKG_CHECK_MODULES],
 220 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 221 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 222 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 223
 224 pkg_failed=no
 225 AC_MSG_CHECKING([for $2])
 226
 227 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 228 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
 229
 230 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
 231 and $1[]_LIBS to avoid the need to call pkg-config.
 232 See the pkg-config man page for more details.])
 233
 234 if test $pkg_failed = yes; then
 235         AC_MSG_RESULT([no])
 236         _PKG_SHORT_ERRORS_SUPPORTED
 237         if test $_pkg_short_errors_supported = yes; then
 238                 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
 239         else
 240                 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
 241         fi
 242         # Put the nasty error message in config.log where it belongs
 243         echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
 244
 245         m4_default([$4], [AC_MSG_ERROR(
 246 [Package requirements ($2) were not met:
 247
 248 $$1_PKG_ERRORS
 249
 250 Consider adjusting the PKG_CONFIG_PATH environment variable if you
 251 installed software in a non-standard prefix.
 252
 253 _PKG_TEXT])[]dnl
 254         ])
 255 elif test $pkg_failed = untried; then
 256         AC_MSG_RESULT([no])
 257         m4_default([$4], [AC_MSG_FAILURE(
 258 [The pkg-config script could not be found or is too old.  Make sure it
 259 is in your PATH or set the PKG_CONFIG environment variable to the full
 260 path to pkg-config.
 261
 262 _PKG_TEXT
 263
 264 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
 265         ])
 266 else
 267         $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
 268         $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
 269         AC_MSG_RESULT([yes])
 270         $3
 271 fi[]dnl
 272 ])dnl PKG_CHECK_MODULES
 273
 274
 275 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 276 dnl   [ACTION-IF-NOT-FOUND])
 277 dnl ---------------------------------------------------------------------
 278 dnl Since: 0.29
 279 dnl
 280 dnl Checks for existence of MODULES and gathers its build flags with
 281 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
 282 dnl and VARIABLE-PREFIX_LIBS from --libs.
 283 dnl
 284 dnl Note that if there is a possibility the first call to
 285 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
 286 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
 287 dnl configure.ac.
 288 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
 289 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 290 _save_PKG_CONFIG=$PKG_CONFIG
 291 PKG_CONFIG="$PKG_CONFIG --static"
 292 PKG_CHECK_MODULES($@)
 293 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
 294 ])dnl PKG_CHECK_MODULES_STATIC
 295
 296
 297 dnl PKG_INSTALLDIR([DIRECTORY])
 298 dnl -------------------------
 299 dnl Since: 0.27
 300 dnl
 301 dnl Substitutes the variable pkgconfigdir as the location where a module
 302 dnl should install pkg-config .pc files. By default the directory is
 303 dnl $libdir/pkgconfig, but the default can be changed by passing
 304 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
 305 dnl parameter.
 306 AC_DEFUN([PKG_INSTALLDIR],
 307 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
 308 m4_pushdef([pkg_description],
 309     [pkg-config installation directory @<:@]pkg_default[@:>@])
 310 AC_ARG_WITH([pkgconfigdir],
 311     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
 312     [with_pkgconfigdir=]pkg_default)
 313 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
 314 m4_popdef([pkg_default])
 315 m4_popdef([pkg_description])
 316 ])dnl PKG_INSTALLDIR
 317
 318
 319 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
 320 dnl --------------------------------
 321 dnl Since: 0.27
 322 dnl
 323 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
 324 dnl module should install arch-independent pkg-config .pc files. By
 325 dnl default the directory is $datadir/pkgconfig, but the default can be
 326 dnl changed by passing DIRECTORY. The user can override through the
 327 dnl --with-noarch-pkgconfigdir parameter.
 328 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
 329 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
 330 m4_pushdef([pkg_description],
 331     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
 332 AC_ARG_WITH([noarch-pkgconfigdir],
 333     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
 334     [with_noarch_pkgconfigdir=]pkg_default)
 335 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
 336 m4_popdef([pkg_default])
 337 m4_popdef([pkg_description])
 338 ])dnl PKG_NOARCH_INSTALLDIR
 339
 340
 341 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
 342 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 343 dnl -------------------------------------------
 344 dnl Since: 0.28
 345 dnl
 346 dnl Retrieves the value of the pkg-config variable for the given module.
 347 AC_DEFUN([PKG_CHECK_VAR],
 348 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 349 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
 350
 351 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
 352 AS_VAR_COPY([$1], [pkg_cv_][$1])
 353
 354 AS_VAR_IF([$1], [""], [$5], [$4])dnl
 355 ])dnl PKG_CHECK_VAR
 356
 357 dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
 358 dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
 359 dnl   [DESCRIPTION], [DEFAULT])
 360 dnl ------------------------------------------
 361 dnl
 362 dnl Prepare a "--with-" configure option using the lowercase
 363 dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
 364 dnl PKG_CHECK_MODULES in a single macro.
 365 AC_DEFUN([PKG_WITH_MODULES],
 366 [
 367 m4_pushdef([with_arg], m4_tolower([$1]))
 368
 369 m4_pushdef([description],
 370            [m4_default([$5], [build with ]with_arg[ support])])
 371
 372 m4_pushdef([def_arg], [m4_default([$6], [auto])])
 373 m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
 374 m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
 375
 376 m4_case(def_arg,
 377             [yes],[m4_pushdef([with_without], [--without-]with_arg)],
 378             [m4_pushdef([with_without],[--with-]with_arg)])
 379
 380 AC_ARG_WITH(with_arg,
 381      AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
 382     [AS_TR_SH([with_]with_arg)=def_arg])
 383
 384 AS_CASE([$AS_TR_SH([with_]with_arg)],
 385             [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
 386             [auto],[PKG_CHECK_MODULES([$1],[$2],
 387                                         [m4_n([def_action_if_found]) $3],
 388                                         [m4_n([def_action_if_not_found]) $4])])
 389
 390 m4_popdef([with_arg])
 391 m4_popdef([description])
 392 m4_popdef([def_arg])
 393
 394 ])dnl PKG_WITH_MODULES
 395
 396 dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
 397 dnl   [DESCRIPTION], [DEFAULT])
 398 dnl -----------------------------------------------
 399 dnl
 400 dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
 401 dnl check._[VARIABLE-PREFIX] is exported as make variable.
 402 AC_DEFUN([PKG_HAVE_WITH_MODULES],
 403 [
 404 PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
 405
 406 AM_CONDITIONAL([HAVE_][$1],
 407                [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
 408 ])dnl PKG_HAVE_WITH_MODULES
 409
 410 dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
 411 dnl   [DESCRIPTION], [DEFAULT])
 412 dnl ------------------------------------------------------
 413 dnl
 414 dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
 415 dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
 416 dnl and preprocessor variable.
 417 AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
 418 [
 419 PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
 420
 421 AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
 422         [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
 423 ])dnl PKG_HAVE_DEFINE_WITH_MODULES
 424
 425 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 426 #
 427 # This file is free software; the Free Software Foundation
 428 # gives unlimited permission to copy and/or distribute it,
 429 # with or without modifications, as long as this notice is preserved.
 430
 431
 432 # AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 433 # ---------------------------------------------------------------------------
 434 # Adds support for distributing Python modules and packages.  To
 435 # install modules, copy them to $(pythondir), using the python_PYTHON
 436 # automake variable.  To install a package with the same name as the
 437 # automake package, install to $(pkgpythondir), or use the
 438 # pkgpython_PYTHON automake variable.
 439 #
 440 # The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
 441 # locations to install python extension modules (shared libraries).
 442 # Another macro is required to find the appropriate flags to compile
 443 # extension modules.
 444 #
 445 # If your package is configured with a different prefix to python,
 446 # users will have to add the install directory to the PYTHONPATH
 447 # environment variable, or create a .pth file (see the python
 448 # documentation for details).
 449 #
 450 # If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
 451 # cause an error if the version of python installed on the system
 452 # doesn't meet the requirement.  MINIMUM-VERSION should consist of
 453 # numbers and dots only.
 454 AC_DEFUN([AM_PATH_PYTHON],
 455  [
 456   dnl Find a Python interpreter.  Python versions prior to 2.0 are not
 457   dnl supported. (2.0 was released on October 16, 2000).
 458   m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
 459 [python python2 python3 dnl
 460  python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
 461  python3.2 python3.1 python3.0 dnl
 462  python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
 463  python2.0])
 464
 465   AC_ARG_VAR([PYTHON], [the Python interpreter])
 466
 467   m4_if([$1],[],[
 468     dnl No version check is needed.
 469     # Find any Python interpreter.
 470     if test -z "$PYTHON"; then
 471       AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
 472     fi
 473     am_display_PYTHON=python
 474   ], [
 475     dnl A version check is needed.
 476     if test -n "$PYTHON"; then
 477       # If the user set $PYTHON, use it and don't search something else.
 478       AC_MSG_CHECKING([whether $PYTHON version is >= $1])
 479       AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
 480                               [AC_MSG_RESULT([yes])],
 481                               [AC_MSG_RESULT([no])
 482                                AC_MSG_ERROR([Python interpreter is too old])])
 483       am_display_PYTHON=$PYTHON
 484     else
 485       # Otherwise, try each interpreter until we find one that satisfies
 486       # VERSION.
 487       AC_CACHE_CHECK([for a Python interpreter with version >= $1],
 488         [am_cv_pathless_PYTHON],[
 489         for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
 490           test "$am_cv_pathless_PYTHON" = none && break
 491           AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
 492         done])
 493       # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
 494       if test "$am_cv_pathless_PYTHON" = none; then
 495         PYTHON=:
 496       else
 497         AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
 498       fi
 499       am_display_PYTHON=$am_cv_pathless_PYTHON
 500     fi
 501   ])
 502
 503   if test "$PYTHON" = :; then
 504     dnl Run any user-specified action, or abort.
 505     m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
 506   else
 507
 508   dnl Query Python for its version number.  Although site.py simply uses
 509   dnl sys.version[:3], printing that failed with Python 3.10, since the
 510   dnl trailing zero was eliminated. So now we output just the major
 511   dnl and minor version numbers, as numbers. Apparently the tertiary
 512   dnl version is not of interest.
 513   dnl
 514   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
 515     [am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[[:2]])"`])
 516   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
 517
 518   dnl At times, e.g., when building shared libraries, you may want
 519   dnl to know which OS platform Python thinks this is.
 520   dnl
 521   AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
 522     [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
 523   AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
 524
 525   dnl emacs-page
 526   dnl If --with-python-sys-prefix is given, use the values of sys.prefix
 527   dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
 528   dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
 529   dnl ${exec_prefix} variables.
 530   dnl
 531   dnl The two are made distinct variables so they can be overridden if
 532   dnl need be, although general consensus is that you shouldn't need
 533   dnl this separation.
 534   dnl
 535   dnl Also allow directly setting the prefixes via configure options,
 536   dnl overriding any default.
 537   dnl
 538   if test "x$prefix" = xNONE; then
 539     am__usable_prefix=$ac_default_prefix
 540   else
 541     am__usable_prefix=$prefix
 542   fi
 543
 544   # Allow user to request using sys.* values from Python,
 545   # instead of the GNU $prefix values.
 546   AC_ARG_WITH([python-sys-prefix],
 547   [AS_HELP_STRING([--with-python-sys-prefix],
 548                   [use Python's sys.prefix and sys.exec_prefix values])],
 549   [am_use_python_sys=:],
 550   [am_use_python_sys=false])
 551
 552   # Allow user to override whatever the default Python prefix is.
 553   AC_ARG_WITH([python_prefix],
 554   [AS_HELP_STRING([--with-python_prefix],
 555                   [override the default PYTHON_PREFIX])],
 556   [am_python_prefix_subst=$withval
 557    am_cv_python_prefix=$withval
 558    AC_MSG_CHECKING([for explicit $am_display_PYTHON prefix])
 559    AC_MSG_RESULT([$am_cv_python_prefix])],
 560   [
 561    if $am_use_python_sys; then
 562      # using python sys.prefix value, not GNU
 563      AC_CACHE_CHECK([for python default $am_display_PYTHON prefix],
 564      [am_cv_python_prefix],
 565      [am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`])
 566
 567      dnl If sys.prefix is a subdir of $prefix, replace the literal value of
 568      dnl $prefix with a variable reference so it can be overridden.
 569      case $am_cv_python_prefix in
 570      $am__usable_prefix*)
 571        am__strip_prefix=`echo "$am__usable_prefix" | sed 's|.|.|g'`
 572        am_python_prefix_subst=`echo "$am_cv_python_prefix" | sed "s,^$am__strip_prefix,\\${prefix},"`
 573        ;;
 574      *)
 575        am_python_prefix_subst=$am_cv_python_prefix
 576        ;;
 577      esac
 578    else # using GNU prefix value, not python sys.prefix
 579      am_python_prefix_subst='${prefix}'
 580      am_python_prefix=$am_python_prefix_subst
 581      AC_MSG_CHECKING([for GNU default $am_display_PYTHON prefix])
 582      AC_MSG_RESULT([$am_python_prefix])
 583    fi])
 584   # Substituting python_prefix_subst value.
 585   AC_SUBST([PYTHON_PREFIX], [$am_python_prefix_subst])
 586
 587   # emacs-page Now do it all over again for Python exec_prefix, but with yet
 588   # another conditional: fall back to regular prefix if that was specified.
 589   AC_ARG_WITH([python_exec_prefix],
 590   [AS_HELP_STRING([--with-python_exec_prefix],
 591                   [override the default PYTHON_EXEC_PREFIX])],
 592   [am_python_exec_prefix_subst=$withval
 593    am_cv_python_exec_prefix=$withval
 594    AC_MSG_CHECKING([for explicit $am_display_PYTHON exec_prefix])
 595    AC_MSG_RESULT([$am_cv_python_exec_prefix])],
 596   [
 597    # no explicit --with-python_exec_prefix, but if
 598    # --with-python_prefix was given, use its value for python_exec_prefix too.
 599    AS_IF([test -n "$with_python_prefix"],
 600    [am_python_exec_prefix_subst=$with_python_prefix
 601     am_cv_python_exec_prefix=$with_python_prefix
 602     AC_MSG_CHECKING([for python_prefix-given $am_display_PYTHON exec_prefix])
 603     AC_MSG_RESULT([$am_cv_python_exec_prefix])],
 604    [
 605     # Set am__usable_exec_prefix whether using GNU or Python values,
 606     # since we use that variable for pyexecdir.
 607     if test "x$exec_prefix" = xNONE; then
 608       am__usable_exec_prefix=$am__usable_prefix
 609     else
 610       am__usable_exec_prefix=$exec_prefix
 611     fi
 612     #
 613     if $am_use_python_sys; then # using python sys.exec_prefix, not GNU
 614       AC_CACHE_CHECK([for python default $am_display_PYTHON exec_prefix],
 615       [am_cv_python_exec_prefix],
 616       [am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`])
 617       dnl If sys.exec_prefix is a subdir of $exec_prefix, replace the
 618       dnl literal value of $exec_prefix with a variable reference so it can
 619       dnl be overridden.
 620       case $am_cv_python_exec_prefix in
 621       $am__usable_exec_prefix*)
 622         am__strip_prefix=`echo "$am__usable_exec_prefix" | sed 's|.|.|g'`
 623         am_python_exec_prefix_subst=`echo "$am_cv_python_exec_prefix" | sed "s,^$am__strip_prefix,\\${exec_prefix},"`
 624         ;;
 625       *)
 626         am_python_exec_prefix_subst=$am_cv_python_exec_prefix
 627         ;;
 628      esac
 629    else # using GNU $exec_prefix, not python sys.exec_prefix
 630      am_python_exec_prefix_subst='${exec_prefix}'
 631      am_python_exec_prefix=$am_python_exec_prefix_subst
 632      AC_MSG_CHECKING([for GNU default $am_display_PYTHON exec_prefix])
 633      AC_MSG_RESULT([$am_python_exec_prefix])
 634    fi])])
 635   # Substituting python_exec_prefix_subst.
 636   AC_SUBST([PYTHON_EXEC_PREFIX], [$am_python_exec_prefix_subst])
 637
 638   # Factor out some code duplication into this shell variable.
 639   am_python_setup_sysconfig="\
 640 import sys
 641 # Prefer sysconfig over distutils.sysconfig, for better compatibility
 642 # with python 3.x.  See automake bug#10227.
 643 try:
 644     import sysconfig
 645 except ImportError:
 646     can_use_sysconfig = 0
 647 else:
 648     can_use_sysconfig = 1
 649 # Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
 650 # <https://github.com/pypa/virtualenv/issues/118>
 651 try:
 652     from platform import python_implementation
 653     if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
 654         can_use_sysconfig = 0
 655 except ImportError:
 656     pass"
 657
 658   dnl emacs-page Set up 4 directories:
 659
 660   dnl 1. pythondir: where to install python scripts.  This is the
 661   dnl    site-packages directory, not the python standard library
 662   dnl    directory like in previous automake betas.  This behavior
 663   dnl    is more consistent with lispdir.m4 for example.
 664   dnl Query distutils for this directory.
 665   dnl
 666   AC_CACHE_CHECK([for $am_display_PYTHON script directory (pythondir)],
 667   [am_cv_python_pythondir],
 668   [if test "x$am_cv_python_prefix" = x; then
 669      am_py_prefix=$am__usable_prefix
 670    else
 671      am_py_prefix=$am_cv_python_prefix
 672    fi
 673    am_cv_python_pythondir=`$PYTHON -c "
 674 $am_python_setup_sysconfig
 675 if can_use_sysconfig:
 676   sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
 677 else:
 678   from distutils import sysconfig
 679   sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
 680 sys.stdout.write(sitedir)"`
 681    #
 682    case $am_cv_python_pythondir in
 683    $am_py_prefix*)
 684      am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
 685      am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,\\${PYTHON_PREFIX},"`
 686      ;;
 687    *)
 688      case $am_py_prefix in
 689        /usr|/System*) ;;
 690        *) am_cv_python_pythondir="\${PYTHON_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
 691           ;;
 692      esac
 693      ;;
 694    esac
 695   ])
 696   AC_SUBST([pythondir], [$am_cv_python_pythondir])
 697
 698   dnl 2. pkgpythondir: $PACKAGE directory under pythondir.  Was
 699   dnl    PYTHON_SITE_PACKAGE in previous betas, but this naming is
 700   dnl    more consistent with the rest of automake.
 701   dnl
 702   AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
 703
 704   dnl 3. pyexecdir: directory for installing python extension modules
 705   dnl    (shared libraries).
 706   dnl Query distutils for this directory.
 707   dnl
 708   AC_CACHE_CHECK([for $am_display_PYTHON extension module directory (pyexecdir)],
 709   [am_cv_python_pyexecdir],
 710   [if test "x$am_cv_python_exec_prefix" = x; then
 711      am_py_exec_prefix=$am__usable_exec_prefix
 712    else
 713      am_py_exec_prefix=$am_cv_python_exec_prefix
 714    fi
 715    am_cv_python_pyexecdir=`$PYTHON -c "
 716 $am_python_setup_sysconfig
 717 if can_use_sysconfig:
 718   sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_exec_prefix'})
 719 else:
 720   from distutils import sysconfig
 721   sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_exec_prefix')
 722 sys.stdout.write(sitedir)"`
 723    #
 724    case $am_cv_python_pyexecdir in
 725    $am_py_exec_prefix*)
 726      am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
 727      am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,\\${PYTHON_EXEC_PREFIX},"`
 728      ;;
 729    *)
 730      case $am_py_exec_prefix in
 731        /usr|/System*) ;;
 732        *) am_cv_python_pyexecdir="\${PYTHON_EXEC_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
 733           ;;
 734      esac
 735      ;;
 736    esac
 737   ])
 738   AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
 739
 740   dnl 4. pkgpyexecdir: $(pyexecdir)/$(PACKAGE)
 741   dnl
 742   AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
 743
 744   dnl Run any user-specified action.
 745   $2
 746   fi
 747 ])
 748
 749
 750 # AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
 751 # ---------------------------------------------------------------------------
 752 # Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
 753 # Run ACTION-IF-FALSE otherwise.
 754 # This test uses sys.hexversion instead of the string equivalent (first
 755 # word of sys.version), in order to cope with versions such as 2.2c1.
 756 # This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
 757 AC_DEFUN([AM_PYTHON_CHECK_VERSION],
 758  [prog="import sys
 759 # split strings by '.' and convert to numeric.  Append some zeros
 760 # because we need at least 4 digits for the hex conversion.
 761 # map returns an iterator in Python 3.0 and a list in 2.x
 762 minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
 763 minverhex = 0
 764 # xrange is not present in Python 3.0 and range returns an iterator
 765 for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
 766 sys.exit(sys.hexversion < minverhex)"
 767   AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
 768
 769 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 770 #
 771 # This file is free software; the Free Software Foundation
 772 # gives unlimited permission to copy and/or distribute it,
 773 # with or without modifications, as long as this notice is preserved.
 774
 775 # AM_RUN_LOG(COMMAND)
 776 # -------------------
 777 # Run COMMAND, save the exit status in ac_status, and log it.
 778 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 779 AC_DEFUN([AM_RUN_LOG],
 780 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 781    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 782    ac_status=$?
 783    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 784    (exit $ac_status); }])
 785
 786 m4_include([acinclude.m4])