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 m4_ifndef([AC_AUTOCONF_VERSION],
  16   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.71],,
  18 [m4_warning([this file was generated for autoconf 2.71.
  19 You have another version of autoconf.  It may work, but is not guaranteed to.
  20 If you have problems, you may need to regenerate the build system entirely.
  21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
  22
  23 # pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
  24 # serial 12 (pkg-config-0.29.2)
  25
  26 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
  27 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
  28 dnl
  29 dnl This program is free software; you can redistribute it and/or modify
  30 dnl it under the terms of the GNU General Public License as published by
  31 dnl the Free Software Foundation; either version 2 of the License, or
  32 dnl (at your option) any later version.
  33 dnl
  34 dnl This program is distributed in the hope that it will be useful, but
  35 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
  36 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  37 dnl General Public License for more details.
  38 dnl
  39 dnl You should have received a copy of the GNU General Public License
  40 dnl along with this program; if not, write to the Free Software
  41 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  42 dnl 02111-1307, USA.
  43 dnl
  44 dnl As a special exception to the GNU General Public License, if you
  45 dnl distribute this file as part of a program that contains a
  46 dnl configuration script generated by Autoconf, you may include it under
  47 dnl the same distribution terms that you use for the rest of that
  48 dnl program.
  49
  50 dnl PKG_PREREQ(MIN-VERSION)
  51 dnl -----------------------
  52 dnl Since: 0.29
  53 dnl
  54 dnl Verify that the version of the pkg-config macros are at least
  55 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
  56 dnl installed version of pkg-config, this checks the developer's version
  57 dnl of pkg.m4 when generating configure.
  58 dnl
  59 dnl To ensure that this macro is defined, also add:
  60 dnl m4_ifndef([PKG_PREREQ],
  61 dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
  62 dnl
  63 dnl See the "Since" comment for each macro you use to see what version
  64 dnl of the macros you require.
  65 m4_defun([PKG_PREREQ],
  66 [m4_define([PKG_MACROS_VERSION], [0.29.2])
  67 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
  68     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
  69 ])dnl PKG_PREREQ
  70
  71 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
  72 dnl ----------------------------------
  73 dnl Since: 0.16
  74 dnl
  75 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
  76 dnl first found in the path. Checks that the version of pkg-config found
  77 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
  78 dnl used since that's the first version where most current features of
  79 dnl pkg-config existed.
  80 AC_DEFUN([PKG_PROG_PKG_CONFIG],
  81 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
  82 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
  83 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
  84 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
  85 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
  86 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
  87
  88 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
  89         AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
  90 fi
  91 if test -n "$PKG_CONFIG"; then
  92         _pkg_min_version=m4_default([$1], [0.9.0])
  93         AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
  94         if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
  95                 AC_MSG_RESULT([yes])
  96         else
  97                 AC_MSG_RESULT([no])
  98                 PKG_CONFIG=""
  99         fi
 100 fi[]dnl
 101 ])dnl PKG_PROG_PKG_CONFIG
 102
 103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 104 dnl -------------------------------------------------------------------
 105 dnl Since: 0.18
 106 dnl
 107 dnl Check to see whether a particular set of modules exists. Similar to
 108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
 109 dnl
 110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 111 dnl only at the first occurence in configure.ac, so if the first place
 112 dnl it's called might be skipped (such as if it is within an "if", you
 113 dnl have to call PKG_CHECK_EXISTS manually
 114 AC_DEFUN([PKG_CHECK_EXISTS],
 115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 116 if test -n "$PKG_CONFIG" && \
 117     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
 118   m4_default([$2], [:])
 119 m4_ifvaln([$3], [else
 120   $3])dnl
 121 fi])
 122
 123 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
 124 dnl ---------------------------------------------
 125 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
 126 dnl pkg_failed based on the result.
 127 m4_define([_PKG_CONFIG],
 128 [if test -n "$$1"; then
 129     pkg_cv_[]$1="$$1"
 130  elif test -n "$PKG_CONFIG"; then
 131     PKG_CHECK_EXISTS([$3],
 132                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
 133                       test "x$?" != "x0" && pkg_failed=yes ],
 134                      [pkg_failed=yes])
 135  else
 136     pkg_failed=untried
 137 fi[]dnl
 138 ])dnl _PKG_CONFIG
 139
 140 dnl _PKG_SHORT_ERRORS_SUPPORTED
 141 dnl ---------------------------
 142 dnl Internal check to see if pkg-config supports short errors.
 143 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
 144 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 145 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
 146         _pkg_short_errors_supported=yes
 147 else
 148         _pkg_short_errors_supported=no
 149 fi[]dnl
 150 ])dnl _PKG_SHORT_ERRORS_SUPPORTED
 151
 152
 153 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 154 dnl   [ACTION-IF-NOT-FOUND])
 155 dnl --------------------------------------------------------------
 156 dnl Since: 0.4.0
 157 dnl
 158 dnl Note that if there is a possibility the first call to
 159 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
 160 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
 161 AC_DEFUN([PKG_CHECK_MODULES],
 162 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 163 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 164 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 165
 166 pkg_failed=no
 167 AC_MSG_CHECKING([for $2])
 168
 169 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 170 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
 171
 172 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
 173 and $1[]_LIBS to avoid the need to call pkg-config.
 174 See the pkg-config man page for more details.])
 175
 176 if test $pkg_failed = yes; then
 177         AC_MSG_RESULT([no])
 178         _PKG_SHORT_ERRORS_SUPPORTED
 179         if test $_pkg_short_errors_supported = yes; then
 180                 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
 181         else
 182                 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
 183         fi
 184         # Put the nasty error message in config.log where it belongs
 185         echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
 186
 187         m4_default([$4], [AC_MSG_ERROR(
 188 [Package requirements ($2) were not met:
 189
 190 $$1_PKG_ERRORS
 191
 192 Consider adjusting the PKG_CONFIG_PATH environment variable if you
 193 installed software in a non-standard prefix.
 194
 195 _PKG_TEXT])[]dnl
 196         ])
 197 elif test $pkg_failed = untried; then
 198         AC_MSG_RESULT([no])
 199         m4_default([$4], [AC_MSG_FAILURE(
 200 [The pkg-config script could not be found or is too old.  Make sure it
 201 is in your PATH or set the PKG_CONFIG environment variable to the full
 202 path to pkg-config.
 203
 204 _PKG_TEXT
 205
 206 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
 207         ])
 208 else
 209         $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
 210         $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
 211         AC_MSG_RESULT([yes])
 212         $3
 213 fi[]dnl
 214 ])dnl PKG_CHECK_MODULES
 215
 216
 217 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 218 dnl   [ACTION-IF-NOT-FOUND])
 219 dnl ---------------------------------------------------------------------
 220 dnl Since: 0.29
 221 dnl
 222 dnl Checks for existence of MODULES and gathers its build flags with
 223 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
 224 dnl and VARIABLE-PREFIX_LIBS from --libs.
 225 dnl
 226 dnl Note that if there is a possibility the first call to
 227 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
 228 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
 229 dnl configure.ac.
 230 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
 231 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 232 _save_PKG_CONFIG=$PKG_CONFIG
 233 PKG_CONFIG="$PKG_CONFIG --static"
 234 PKG_CHECK_MODULES($@)
 235 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
 236 ])dnl PKG_CHECK_MODULES_STATIC
 237
 238
 239 dnl PKG_INSTALLDIR([DIRECTORY])
 240 dnl -------------------------
 241 dnl Since: 0.27
 242 dnl
 243 dnl Substitutes the variable pkgconfigdir as the location where a module
 244 dnl should install pkg-config .pc files. By default the directory is
 245 dnl $libdir/pkgconfig, but the default can be changed by passing
 246 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
 247 dnl parameter.
 248 AC_DEFUN([PKG_INSTALLDIR],
 249 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
 250 m4_pushdef([pkg_description],
 251     [pkg-config installation directory @<:@]pkg_default[@:>@])
 252 AC_ARG_WITH([pkgconfigdir],
 253     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
 254     [with_pkgconfigdir=]pkg_default)
 255 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
 256 m4_popdef([pkg_default])
 257 m4_popdef([pkg_description])
 258 ])dnl PKG_INSTALLDIR
 259
 260
 261 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
 262 dnl --------------------------------
 263 dnl Since: 0.27
 264 dnl
 265 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
 266 dnl module should install arch-independent pkg-config .pc files. By
 267 dnl default the directory is $datadir/pkgconfig, but the default can be
 268 dnl changed by passing DIRECTORY. The user can override through the
 269 dnl --with-noarch-pkgconfigdir parameter.
 270 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
 271 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
 272 m4_pushdef([pkg_description],
 273     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
 274 AC_ARG_WITH([noarch-pkgconfigdir],
 275     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
 276     [with_noarch_pkgconfigdir=]pkg_default)
 277 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
 278 m4_popdef([pkg_default])
 279 m4_popdef([pkg_description])
 280 ])dnl PKG_NOARCH_INSTALLDIR
 281
 282
 283 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
 284 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 285 dnl -------------------------------------------
 286 dnl Since: 0.28
 287 dnl
 288 dnl Retrieves the value of the pkg-config variable for the given module.
 289 AC_DEFUN([PKG_CHECK_VAR],
 290 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 291 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
 292
 293 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
 294 AS_VAR_COPY([$1], [pkg_cv_][$1])
 295
 296 AS_VAR_IF([$1], [""], [$5], [$4])dnl
 297 ])dnl PKG_CHECK_VAR
 298
 299 # Copyright (C) 2002-2021 Free Software Foundation, Inc.
 300 #
 301 # This file is free software; the Free Software Foundation
 302 # gives unlimited permission to copy and/or distribute it,
 303 # with or without modifications, as long as this notice is preserved.
 304
 305 # AM_AUTOMAKE_VERSION(VERSION)
 306 # ----------------------------
 307 # Automake X.Y traces this macro to ensure aclocal.m4 has been
 308 # generated from the m4 files accompanying Automake X.Y.
 309 # (This private macro should not be called outside this file.)
 310 AC_DEFUN([AM_AUTOMAKE_VERSION],
 311 [am__api_version='1.16'
 312 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
 313 dnl require some minimum version.  Point them to the right macro.
 314 m4_if([$1], [1.16.5], [],
 315       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
 316 ])
 317
 318 # _AM_AUTOCONF_VERSION(VERSION)
 319 # -----------------------------
 320 # aclocal traces this macro to find the Autoconf version.
 321 # This is a private macro too.  Using m4_define simplifies
 322 # the logic in aclocal, which can simply ignore this definition.
 323 m4_define([_AM_AUTOCONF_VERSION], [])
 324
 325 # AM_SET_CURRENT_AUTOMAKE_VERSION
 326 # -------------------------------
 327 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
 328 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
 329 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
 330 [AM_AUTOMAKE_VERSION([1.16.5])dnl
 331 m4_ifndef([AC_AUTOCONF_VERSION],
 332   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
 333 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
 334
 335 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
 336
 337 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 338 #
 339 # This file is free software; the Free Software Foundation
 340 # gives unlimited permission to copy and/or distribute it,
 341 # with or without modifications, as long as this notice is preserved.
 342
 343 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
 344 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
 345 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
 346 #
 347 # Of course, Automake must honor this variable whenever it calls a
 348 # tool from the auxiliary directory.  The problem is that $srcdir (and
 349 # therefore $ac_aux_dir as well) can be either absolute or relative,
 350 # depending on how configure is run.  This is pretty annoying, since
 351 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
 352 # source directory, any form will work fine, but in subdirectories a
 353 # relative path needs to be adjusted first.
 354 #
 355 # $ac_aux_dir/missing
 356 #    fails when called from a subdirectory if $ac_aux_dir is relative
 357 # $top_srcdir/$ac_aux_dir/missing
 358 #    fails if $ac_aux_dir is absolute,
 359 #    fails when called from a subdirectory in a VPATH build with
 360 #          a relative $ac_aux_dir
 361 #
 362 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
 363 # are both prefixed by $srcdir.  In an in-source build this is usually
 364 # harmless because $srcdir is '.', but things will broke when you
 365 # start a VPATH build or use an absolute $srcdir.
 366 #
 367 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
 368 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
 369 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
 370 # and then we would define $MISSING as
 371 #   MISSING="\${SHELL} $am_aux_dir/missing"
 372 # This will work as long as MISSING is not called from configure, because
 373 # unfortunately $(top_srcdir) has no meaning in configure.
 374 # However there are other variables, like CC, which are often used in
 375 # configure, and could therefore not use this "fixed" $ac_aux_dir.
 376 #
 377 # Another solution, used here, is to always expand $ac_aux_dir to an
 378 # absolute PATH.  The drawback is that using absolute paths prevent a
 379 # configured tree to be moved without reconfiguration.
 380
 381 AC_DEFUN([AM_AUX_DIR_EXPAND],
 382 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 383 # Expand $ac_aux_dir to an absolute path.
 384 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 385 ])
 386
 387 # AM_CONDITIONAL                                            -*- Autoconf -*-
 388
 389 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
 390 #
 391 # This file is free software; the Free Software Foundation
 392 # gives unlimited permission to copy and/or distribute it,
 393 # with or without modifications, as long as this notice is preserved.
 394
 395 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 396 # -------------------------------------
 397 # Define a conditional.
 398 AC_DEFUN([AM_CONDITIONAL],
 399 [AC_PREREQ([2.52])dnl
 400  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
 401        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 402 AC_SUBST([$1_TRUE])dnl
 403 AC_SUBST([$1_FALSE])dnl
 404 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 405 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 406 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 407 if $2; then
 408   $1_TRUE=
 409   $1_FALSE='#'
 410 else
 411   $1_TRUE='#'
 412   $1_FALSE=
 413 fi
 414 AC_CONFIG_COMMANDS_PRE(
 415 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 416   AC_MSG_ERROR([[conditional "$1" was never defined.
 417 Usually this means the macro was only invoked conditionally.]])
 418 fi])])
 419
 420 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 421 #
 422 # This file is free software; the Free Software Foundation
 423 # gives unlimited permission to copy and/or distribute it,
 424 # with or without modifications, as long as this notice is preserved.
 425
 426
 427 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 428 # written in clear, in which case automake, when reading aclocal.m4,
 429 # will think it sees a *use*, and therefore will trigger all it's
 430 # C support machinery.  Also note that it means that autoscan, seeing
 431 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 432
 433
 434 # _AM_DEPENDENCIES(NAME)
 435 # ----------------------
 436 # See how the compiler implements dependency checking.
 437 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 438 # We try a few techniques and use that to set a single cache variable.
 439 #
 440 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 441 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 442 # dependency, and given that the user is not expected to run this macro,
 443 # just rely on AC_PROG_CC.
 444 AC_DEFUN([_AM_DEPENDENCIES],
 445 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 446 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 447 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 448 AC_REQUIRE([AM_DEP_TRACK])dnl
 449
 450 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
 451       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
 452       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
 453       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
 454       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
 455       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
 456                     [depcc="$$1"   am_compiler_list=])
 457
 458 AC_CACHE_CHECK([dependency style of $depcc],
 459                [am_cv_$1_dependencies_compiler_type],
 460 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 461   # We make a subdir and do the tests there.  Otherwise we can end up
 462   # making bogus files that we don't know about and never remove.  For
 463   # instance it was reported that on HP-UX the gcc test will end up
 464   # making a dummy file named 'D' -- because '-MD' means "put the output
 465   # in D".
 466   rm -rf conftest.dir
 467   mkdir conftest.dir
 468   # Copy depcomp to subdir because otherwise we won't find it if we're
 469   # using a relative directory.
 470   cp "$am_depcomp" conftest.dir
 471   cd conftest.dir
 472   # We will build objects and dependencies in a subdirectory because
 473   # it helps to detect inapplicable dependency modes.  For instance
 474   # both Tru64's cc and ICC support -MD to output dependencies as a
 475   # side effect of compilation, but ICC will put the dependencies in
 476   # the current directory while Tru64 will put them in the object
 477   # directory.
 478   mkdir sub
 479
 480   am_cv_$1_dependencies_compiler_type=none
 481   if test "$am_compiler_list" = ""; then
 482      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
 483   fi
 484   am__universal=false
 485   m4_case([$1], [CC],
 486     [case " $depcc " in #(
 487      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 488      esac],
 489     [CXX],
 490     [case " $depcc " in #(
 491      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 492      esac])
 493
 494   for depmode in $am_compiler_list; do
 495     # Setup a source with many dependencies, because some compilers
 496     # like to wrap large dependency lists on column 80 (with \), and
 497     # we should not choose a depcomp mode which is confused by this.
 498     #
 499     # We need to recreate these files for each test, as the compiler may
 500     # overwrite some of them when testing with obscure command lines.
 501     # This happens at least with the AIX C compiler.
 502     : > sub/conftest.c
 503     for i in 1 2 3 4 5 6; do
 504       echo '#include "conftst'$i'.h"' >> sub/conftest.c
 505       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
 506       # Solaris 10 /bin/sh.
 507       echo '/* dummy */' > sub/conftst$i.h
 508     done
 509     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 510
 511     # We check with '-c' and '-o' for the sake of the "dashmstdout"
 512     # mode.  It turns out that the SunPro C++ compiler does not properly
 513     # handle '-M -o', and we need to detect this.  Also, some Intel
 514     # versions had trouble with output in subdirs.
 515     am__obj=sub/conftest.${OBJEXT-o}
 516     am__minus_obj="-o $am__obj"
 517     case $depmode in
 518     gcc)
 519       # This depmode causes a compiler race in universal mode.
 520       test "$am__universal" = false || continue
 521       ;;
 522     nosideeffect)
 523       # After this tag, mechanisms are not by side-effect, so they'll
 524       # only be used when explicitly requested.
 525       if test "x$enable_dependency_tracking" = xyes; then
 526         continue
 527       else
 528         break
 529       fi
 530       ;;
 531     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 532       # This compiler won't grok '-c -o', but also, the minuso test has
 533       # not run yet.  These depmodes are late enough in the game, and
 534       # so weak that their functioning should not be impacted.
 535       am__obj=conftest.${OBJEXT-o}
 536       am__minus_obj=
 537       ;;
 538     none) break ;;
 539     esac
 540     if depmode=$depmode \
 541        source=sub/conftest.c object=$am__obj \
 542        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 543        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 544          >/dev/null 2>conftest.err &&
 545        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 546        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 547        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 548        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 549       # icc doesn't choke on unknown options, it will just issue warnings
 550       # or remarks (even with -Werror).  So we grep stderr for any message
 551       # that says an option was ignored or not supported.
 552       # When given -MP, icc 7.0 and 7.1 complain thusly:
 553       #   icc: Command line warning: ignoring option '-M'; no argument required
 554       # The diagnosis changed in icc 8.0:
 555       #   icc: Command line remark: option '-MP' not supported
 556       if (grep 'ignoring option' conftest.err ||
 557           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 558         am_cv_$1_dependencies_compiler_type=$depmode
 559         break
 560       fi
 561     fi
 562   done
 563
 564   cd ..
 565   rm -rf conftest.dir
 566 else
 567   am_cv_$1_dependencies_compiler_type=none
 568 fi
 569 ])
 570 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 571 AM_CONDITIONAL([am__fastdep$1], [
 572   test "x$enable_dependency_tracking" != xno \
 573   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 574 ])
 575
 576
 577 # AM_SET_DEPDIR
 578 # -------------
 579 # Choose a directory name for dependency files.
 580 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 581 AC_DEFUN([AM_SET_DEPDIR],
 582 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 583 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 584 ])
 585
 586
 587 # AM_DEP_TRACK
 588 # ------------
 589 AC_DEFUN([AM_DEP_TRACK],
 590 [AC_ARG_ENABLE([dependency-tracking], [dnl
 591 AS_HELP_STRING(
 592   [--enable-dependency-tracking],
 593   [do not reject slow dependency extractors])
 594 AS_HELP_STRING(
 595   [--disable-dependency-tracking],
 596   [speeds up one-time build])])
 597 if test "x$enable_dependency_tracking" != xno; then
 598   am_depcomp="$ac_aux_dir/depcomp"
 599   AMDEPBACKSLASH='\'
 600   am__nodep='_no'
 601 fi
 602 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 603 AC_SUBST([AMDEPBACKSLASH])dnl
 604 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 605 AC_SUBST([am__nodep])dnl
 606 _AM_SUBST_NOTMAKE([am__nodep])dnl
 607 ])
 608
 609 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 610
 611 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 612 #
 613 # This file is free software; the Free Software Foundation
 614 # gives unlimited permission to copy and/or distribute it,
 615 # with or without modifications, as long as this notice is preserved.
 616
 617 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 618 # ------------------------------
 619 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 620 [{
 621   # Older Autoconf quotes --file arguments for eval, but not when files
 622   # are listed without --file.  Let's play safe and only enable the eval
 623   # if we detect the quoting.
 624   # TODO: see whether this extra hack can be removed once we start
 625   # requiring Autoconf 2.70 or later.
 626   AS_CASE([$CONFIG_FILES],
 627           [*\'*], [eval set x "$CONFIG_FILES"],
 628           [*], [set x $CONFIG_FILES])
 629   shift
 630   # Used to flag and report bootstrapping failures.
 631   am_rc=0
 632   for am_mf
 633   do
 634     # Strip MF so we end up with the name of the file.
 635     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
 636     # Check whether this is an Automake generated Makefile which includes
 637     # dependency-tracking related rules and includes.
 638     # Grep'ing the whole file directly is not great: AIX grep has a line
 639     # limit of 2048, but all sed's we know have understand at least 4000.
 640     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
 641       || continue
 642     am_dirpart=`AS_DIRNAME(["$am_mf"])`
 643     am_filepart=`AS_BASENAME(["$am_mf"])`
 644     AM_RUN_LOG([cd "$am_dirpart" \
 645       && sed -e '/# am--include-marker/d' "$am_filepart" \
 646         | $MAKE -f - am--depfiles]) || am_rc=$?
 647   done
 648   if test $am_rc -ne 0; then
 649     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
 650     for automatic dependency tracking.  If GNU make was not used, consider
 651     re-running the configure script with MAKE="gmake" (or whatever is
 652     necessary).  You can also try re-running configure with the
 653     '--disable-dependency-tracking' option to at least be able to build
 654     the package (albeit without support for automatic dependency tracking).])
 655   fi
 656   AS_UNSET([am_dirpart])
 657   AS_UNSET([am_filepart])
 658   AS_UNSET([am_mf])
 659   AS_UNSET([am_rc])
 660   rm -f conftest-deps.mk
 661 }
 662 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 663
 664
 665 # AM_OUTPUT_DEPENDENCY_COMMANDS
 666 # -----------------------------
 667 # This macro should only be invoked once -- use via AC_REQUIRE.
 668 #
 669 # This code is only required when automatic dependency tracking is enabled.
 670 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
 671 # order to bootstrap the dependency handling code.
 672 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 673 [AC_CONFIG_COMMANDS([depfiles],
 674      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
 675      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
 676
 677 # Do all the work for Automake.                             -*- Autoconf -*-
 678
 679 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 680 #
 681 # This file is free software; the Free Software Foundation
 682 # gives unlimited permission to copy and/or distribute it,
 683 # with or without modifications, as long as this notice is preserved.
 684
 685 # This macro actually does too much.  Some checks are only needed if
 686 # your package does certain things.  But this isn't really a big deal.
 687
 688 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 689 m4_define([AC_PROG_CC],
 690 m4_defn([AC_PROG_CC])
 691 [_AM_PROG_CC_C_O
 692 ])
 693
 694 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 695 # AM_INIT_AUTOMAKE([OPTIONS])
 696 # -----------------------------------------------
 697 # The call with PACKAGE and VERSION arguments is the old style
 698 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 699 # and VERSION should now be passed to AC_INIT and removed from
 700 # the call to AM_INIT_AUTOMAKE.
 701 # We support both call styles for the transition.  After
 702 # the next Automake release, Autoconf can make the AC_INIT
 703 # arguments mandatory, and then we can depend on a new Autoconf
 704 # release and drop the old call support.
 705 AC_DEFUN([AM_INIT_AUTOMAKE],
 706 [AC_PREREQ([2.65])dnl
 707 m4_ifdef([_$0_ALREADY_INIT],
 708   [m4_fatal([$0 expanded multiple times
 709 ]m4_defn([_$0_ALREADY_INIT]))],
 710   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
 711 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 712 dnl the ones we care about.
 713 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 714 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 715 AC_REQUIRE([AC_PROG_INSTALL])dnl
 716 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 717   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 718   # is not polluted with repeated "-I."
 719   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 720   # test to see if srcdir already configured
 721   if test -f $srcdir/config.status; then
 722     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 723   fi
 724 fi
 725
 726 # test whether we have cygpath
 727 if test -z "$CYGPATH_W"; then
 728   if (cygpath --version) >/dev/null 2>/dev/null; then
 729     CYGPATH_W='cygpath -w'
 730   else
 731     CYGPATH_W=echo
 732   fi
 733 fi
 734 AC_SUBST([CYGPATH_W])
 735
 736 # Define the identity of the package.
 737 dnl Distinguish between old-style and new-style calls.
 738 m4_ifval([$2],
 739 [AC_DIAGNOSE([obsolete],
 740              [$0: two- and three-arguments forms are deprecated.])
 741 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 742  AC_SUBST([PACKAGE], [$1])dnl
 743  AC_SUBST([VERSION], [$2])],
 744 [_AM_SET_OPTIONS([$1])dnl
 745 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 746 m4_if(
 747   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
 748   [ok:ok],,
 749   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 750  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 751  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 752
 753 _AM_IF_OPTION([no-define],,
 754 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 755  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 756
 757 # Some tools Automake needs.
 758 AC_REQUIRE([AM_SANITY_CHECK])dnl
 759 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 760 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 761 AM_MISSING_PROG([AUTOCONF], [autoconf])
 762 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 763 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 764 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 765 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 766 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 767 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 768 # For better backward compatibility.  To be removed once Automake 1.9.x
 769 # dies out for good.  For more background, see:
 770 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 771 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 772 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 773 # We need awk for the "check" target (and possibly the TAP driver).  The
 774 # system "awk" is bad on some platforms.
 775 AC_REQUIRE([AC_PROG_AWK])dnl
 776 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 777 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 778 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 779               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 780                              [_AM_PROG_TAR([v7])])])
 781 _AM_IF_OPTION([no-dependencies],,
 782 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 783                   [_AM_DEPENDENCIES([CC])],
 784                   [m4_define([AC_PROG_CC],
 785                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 786 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 787                   [_AM_DEPENDENCIES([CXX])],
 788                   [m4_define([AC_PROG_CXX],
 789                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 790 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 791                   [_AM_DEPENDENCIES([OBJC])],
 792                   [m4_define([AC_PROG_OBJC],
 793                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 794 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 795                   [_AM_DEPENDENCIES([OBJCXX])],
 796                   [m4_define([AC_PROG_OBJCXX],
 797                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 798 ])
 799 # Variables for tags utilities; see am/tags.am
 800 if test -z "$CTAGS"; then
 801   CTAGS=ctags
 802 fi
 803 AC_SUBST([CTAGS])
 804 if test -z "$ETAGS"; then
 805   ETAGS=etags
 806 fi
 807 AC_SUBST([ETAGS])
 808 if test -z "$CSCOPE"; then
 809   CSCOPE=cscope
 810 fi
 811 AC_SUBST([CSCOPE])
 812
 813 AC_REQUIRE([AM_SILENT_RULES])dnl
 814 dnl The testsuite driver may need to know about EXEEXT, so add the
 815 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 816 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 817 AC_CONFIG_COMMANDS_PRE(dnl
 818 [m4_provide_if([_AM_COMPILER_EXEEXT],
 819   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 820
 821 # POSIX will say in a future version that running "rm -f" with no argument
 822 # is OK; and we want to be able to make that assumption in our Makefile
 823 # recipes.  So use an aggressive probe to check that the usage we want is
 824 # actually supported "in the wild" to an acceptable degree.
 825 # See automake bug#10828.
 826 # To make any issue more visible, cause the running configure to be aborted
 827 # by default if the 'rm' program in use doesn't match our expectations; the
 828 # user can still override this though.
 829 if rm -f && rm -fr && rm -rf; then : OK; else
 830   cat >&2 <<'END'
 831 Oops!
 832
 833 Your 'rm' program seems unable to run without file operands specified
 834 on the command line, even when the '-f' option is present.  This is contrary
 835 to the behaviour of most rm programs out there, and not conforming with
 836 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 837
 838 Please tell bug-automake@gnu.org about your system, including the value
 839 of your $PATH and any error possibly output before this message.  This
 840 can help us improve future automake versions.
 841
 842 END
 843   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 844     echo 'Configuration will proceed anyway, since you have set the' >&2
 845     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 846     echo >&2
 847   else
 848     cat >&2 <<'END'
 849 Aborting the configuration process, to ensure you take notice of the issue.
 850
 851 You can download and install GNU coreutils to get an 'rm' implementation
 852 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 853
 854 If you want to complete the configuration process using your problematic
 855 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 856 to "yes", and re-run configure.
 857
 858 END
 859     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 860   fi
 861 fi
 862 dnl The trailing newline in this macro's definition is deliberate, for
 863 dnl backward compatibility and to allow trailing 'dnl'-style comments
 864 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 865 ])
 866
 867 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 868 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 869 dnl mangled by Autoconf and run in a shell conditional statement.
 870 m4_define([_AC_COMPILER_EXEEXT],
 871 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 872
 873 # When config.status generates a header, we must update the stamp-h file.
 874 # This file resides in the same directory as the config header
 875 # that is generated.  The stamp files are numbered to have different names.
 876
 877 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 878 # loop where config.status creates the headers, so we can generate
 879 # our stamp files there.
 880 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 881 [# Compute $1's index in $config_headers.
 882 _am_arg=$1
 883 _am_stamp_count=1
 884 for _am_header in $config_headers :; do
 885   case $_am_header in
 886     $_am_arg | $_am_arg:* )
 887       break ;;
 888     * )
 889       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 890   esac
 891 done
 892 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 893
 894 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 895 #
 896 # This file is free software; the Free Software Foundation
 897 # gives unlimited permission to copy and/or distribute it,
 898 # with or without modifications, as long as this notice is preserved.
 899
 900 # AM_PROG_INSTALL_SH
 901 # ------------------
 902 # Define $install_sh.
 903 AC_DEFUN([AM_PROG_INSTALL_SH],
 904 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 905 if test x"${install_sh+set}" != xset; then
 906   case $am_aux_dir in
 907   *\ * | *\     *)
 908     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 909   *)
 910     install_sh="\${SHELL} $am_aux_dir/install-sh"
 911   esac
 912 fi
 913 AC_SUBST([install_sh])])
 914
 915 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
 916 #
 917 # This file is free software; the Free Software Foundation
 918 # gives unlimited permission to copy and/or distribute it,
 919 # with or without modifications, as long as this notice is preserved.
 920
 921 # Check whether the underlying file-system supports filenames
 922 # with a leading dot.  For instance MS-DOS doesn't.
 923 AC_DEFUN([AM_SET_LEADING_DOT],
 924 [rm -rf .tst 2>/dev/null
 925 mkdir .tst 2>/dev/null
 926 if test -d .tst; then
 927   am__leading_dot=.
 928 else
 929   am__leading_dot=_
 930 fi
 931 rmdir .tst 2>/dev/null
 932 AC_SUBST([am__leading_dot])])
 933
 934 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 935
 936 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 937 #
 938 # This file is free software; the Free Software Foundation
 939 # gives unlimited permission to copy and/or distribute it,
 940 # with or without modifications, as long as this notice is preserved.
 941
 942 # AM_MAKE_INCLUDE()
 943 # -----------------
 944 # Check whether make has an 'include' directive that can support all
 945 # the idioms we need for our automatic dependency tracking code.
 946 AC_DEFUN([AM_MAKE_INCLUDE],
 947 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
 948 cat > confinc.mk << 'END'
 949 am__doit:
 950         @echo this is the am__doit target >confinc.out
 951 .PHONY: am__doit
 952 END
 953 am__include="#"
 954 am__quote=
 955 # BSD make does it like this.
 956 echo '.include "confinc.mk" # ignored' > confmf.BSD
 957 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 958 echo 'include confinc.mk # ignored' > confmf.GNU
 959 _am_result=no
 960 for s in GNU BSD; do
 961   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
 962   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
 963       ['0:this is the am__doit target'],
 964       [AS_CASE([$s],
 965           [BSD], [am__include='.include' am__quote='"'],
 966           [am__include='include' am__quote=''])])
 967   if test "$am__include" != "#"; then
 968     _am_result="yes ($s style)"
 969     break
 970   fi
 971 done
 972 rm -f confinc.* confmf.*
 973 AC_MSG_RESULT([${_am_result}])
 974 AC_SUBST([am__include])])
 975 AC_SUBST([am__quote])])
 976
 977 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 978
 979 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
 980 #
 981 # This file is free software; the Free Software Foundation
 982 # gives unlimited permission to copy and/or distribute it,
 983 # with or without modifications, as long as this notice is preserved.
 984
 985 # AM_MISSING_PROG(NAME, PROGRAM)
 986 # ------------------------------
 987 AC_DEFUN([AM_MISSING_PROG],
 988 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 989 $1=${$1-"${am_missing_run}$2"}
 990 AC_SUBST($1)])
 991
 992 # AM_MISSING_HAS_RUN
 993 # ------------------
 994 # Define MISSING if not defined so far and test if it is modern enough.
 995 # If it is, set am_missing_run to use it, otherwise, to nothing.
 996 AC_DEFUN([AM_MISSING_HAS_RUN],
 997 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 998 AC_REQUIRE_AUX_FILE([missing])dnl
 999 if test x"${MISSING+set}" != xset; then
1000   MISSING="\${SHELL} '$am_aux_dir/missing'"
1001 fi
1002 # Use eval to expand $SHELL
1003 if eval "$MISSING --is-lightweight"; then
1004   am_missing_run="$MISSING "
1005 else
1006   am_missing_run=
1007   AC_MSG_WARN(['missing' script is too old or missing])
1008 fi
1009 ])
1010
1011 # Helper functions for option handling.                     -*- Autoconf -*-
1012
1013 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1014 #
1015 # This file is free software; the Free Software Foundation
1016 # gives unlimited permission to copy and/or distribute it,
1017 # with or without modifications, as long as this notice is preserved.
1018
1019 # _AM_MANGLE_OPTION(NAME)
1020 # -----------------------
1021 AC_DEFUN([_AM_MANGLE_OPTION],
1022 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1023
1024 # _AM_SET_OPTION(NAME)
1025 # --------------------
1026 # Set option NAME.  Presently that only means defining a flag for this option.
1027 AC_DEFUN([_AM_SET_OPTION],
1028 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1029
1030 # _AM_SET_OPTIONS(OPTIONS)
1031 # ------------------------
1032 # OPTIONS is a space-separated list of Automake options.
1033 AC_DEFUN([_AM_SET_OPTIONS],
1034 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1035
1036 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1037 # -------------------------------------------
1038 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1039 AC_DEFUN([_AM_IF_OPTION],
1040 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1041
1042 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
1043 #
1044 # This file is free software; the Free Software Foundation
1045 # gives unlimited permission to copy and/or distribute it,
1046 # with or without modifications, as long as this notice is preserved.
1047
1048 # _AM_PROG_CC_C_O
1049 # ---------------
1050 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
1051 # to automatically call this.
1052 AC_DEFUN([_AM_PROG_CC_C_O],
1053 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1054 AC_REQUIRE_AUX_FILE([compile])dnl
1055 AC_LANG_PUSH([C])dnl
1056 AC_CACHE_CHECK(
1057   [whether $CC understands -c and -o together],
1058   [am_cv_prog_cc_c_o],
1059   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
1060   # Make sure it works both with $CC and with simple cc.
1061   # Following AC_PROG_CC_C_O, we do the test twice because some
1062   # compilers refuse to overwrite an existing .o file with -o,
1063   # though they will create one.
1064   am_cv_prog_cc_c_o=yes
1065   for am_i in 1 2; do
1066     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
1067          && test -f conftest2.$ac_objext; then
1068       : OK
1069     else
1070       am_cv_prog_cc_c_o=no
1071       break
1072     fi
1073   done
1074   rm -f core conftest*
1075   unset am_i])
1076 if test "$am_cv_prog_cc_c_o" != yes; then
1077    # Losing compiler, so override with the script.
1078    # FIXME: It is wrong to rewrite CC.
1079    # But if we don't then we get into trouble of one sort or another.
1080    # A longer-term fix would be to have automake use am__CC in this case,
1081    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
1082    CC="$am_aux_dir/compile $CC"
1083 fi
1084 AC_LANG_POP([C])])
1085
1086 # For backward compatibility.
1087 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1088
1089 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1090 #
1091 # This file is free software; the Free Software Foundation
1092 # gives unlimited permission to copy and/or distribute it,
1093 # with or without modifications, as long as this notice is preserved.
1094
1095 # AM_RUN_LOG(COMMAND)
1096 # -------------------
1097 # Run COMMAND, save the exit status in ac_status, and log it.
1098 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1099 AC_DEFUN([AM_RUN_LOG],
1100 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1101    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1102    ac_status=$?
1103    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1104    (exit $ac_status); }])
1105
1106 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
1107
1108 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
1109 #
1110 # This file is free software; the Free Software Foundation
1111 # gives unlimited permission to copy and/or distribute it,
1112 # with or without modifications, as long as this notice is preserved.
1113
1114 # AM_SANITY_CHECK
1115 # ---------------
1116 AC_DEFUN([AM_SANITY_CHECK],
1117 [AC_MSG_CHECKING([whether build environment is sane])
1118 # Reject unsafe characters in $srcdir or the absolute working directory
1119 # name.  Accept space and tab only in the latter.
1120 am_lf='
1121 '
1122 case `pwd` in
1123   *[[\\\"\#\$\&\'\`$am_lf]]*)
1124     AC_MSG_ERROR([unsafe absolute working directory name]);;
1125 esac
1126 case $srcdir in
1127   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
1128     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1129 esac
1130
1131 # Do 'set' in a subshell so we don't clobber the current shell's
1132 # arguments.  Must try -L first in case configure is actually a
1133 # symlink; some systems play weird games with the mod time of symlinks
1134 # (eg FreeBSD returns the mod time of the symlink's containing
1135 # directory).
1136 if (
1137    am_has_slept=no
1138    for am_try in 1 2; do
1139      echo "timestamp, slept: $am_has_slept" > conftest.file
1140      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1141      if test "$[*]" = "X"; then
1142         # -L didn't work.
1143         set X `ls -t "$srcdir/configure" conftest.file`
1144      fi
1145      if test "$[*]" != "X $srcdir/configure conftest.file" \
1146         && test "$[*]" != "X conftest.file $srcdir/configure"; then
1147
1148         # If neither matched, then we have a broken ls.  This can happen
1149         # if, for instance, CONFIG_SHELL is bash and it inherits a
1150         # broken ls alias from the environment.  This has actually
1151         # happened.  Such a system could not be considered "sane".
1152         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
1153   alias in your environment])
1154      fi
1155      if test "$[2]" = conftest.file || test $am_try -eq 2; then
1156        break
1157      fi
1158      # Just in case.
1159      sleep 1
1160      am_has_slept=yes
1161    done
1162    test "$[2]" = conftest.file
1163    )
1164 then
1165    # Ok.
1166    :
1167 else
1168    AC_MSG_ERROR([newly created file is older than distributed files!
1169 Check your system clock])
1170 fi
1171 AC_MSG_RESULT([yes])
1172 # If we didn't sleep, we still need to ensure time stamps of config.status and
1173 # generated files are strictly newer.
1174 am_sleep_pid=
1175 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1176   ( sleep 1 ) &
1177   am_sleep_pid=$!
1178 fi
1179 AC_CONFIG_COMMANDS_PRE(
1180   [AC_MSG_CHECKING([that generated files are newer than configure])
1181    if test -n "$am_sleep_pid"; then
1182      # Hide warnings about reused PIDs.
1183      wait $am_sleep_pid 2>/dev/null
1184    fi
1185    AC_MSG_RESULT([done])])
1186 rm -f conftest.file
1187 ])
1188
1189 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
1190 #
1191 # This file is free software; the Free Software Foundation
1192 # gives unlimited permission to copy and/or distribute it,
1193 # with or without modifications, as long as this notice is preserved.
1194
1195 # AM_SILENT_RULES([DEFAULT])
1196 # --------------------------
1197 # Enable less verbose build rules; with the default set to DEFAULT
1198 # ("yes" being less verbose, "no" or empty being verbose).
1199 AC_DEFUN([AM_SILENT_RULES],
1200 [AC_ARG_ENABLE([silent-rules], [dnl
1201 AS_HELP_STRING(
1202   [--enable-silent-rules],
1203   [less verbose build output (undo: "make V=1")])
1204 AS_HELP_STRING(
1205   [--disable-silent-rules],
1206   [verbose build output (undo: "make V=0")])dnl
1207 ])
1208 case $enable_silent_rules in @%:@ (((
1209   yes) AM_DEFAULT_VERBOSITY=0;;
1210    no) AM_DEFAULT_VERBOSITY=1;;
1211     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1212 esac
1213 dnl
1214 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1215 dnl do not support nested variable expansions.
1216 dnl See automake bug#9928 and bug#10237.
1217 am_make=${MAKE-make}
1218 AC_CACHE_CHECK([whether $am_make supports nested variables],
1219    [am_cv_make_support_nested_variables],
1220    [if AS_ECHO([['TRUE=$(BAR$(V))
1221 BAR0=false
1222 BAR1=true
1223 V=1
1224 am__doit:
1225         @$(TRUE)
1226 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1227   am_cv_make_support_nested_variables=yes
1228 else
1229   am_cv_make_support_nested_variables=no
1230 fi])
1231 if test $am_cv_make_support_nested_variables = yes; then
1232   dnl Using '$V' instead of '$(V)' breaks IRIX make.
1233   AM_V='$(V)'
1234   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1235 else
1236   AM_V=$AM_DEFAULT_VERBOSITY
1237   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1238 fi
1239 AC_SUBST([AM_V])dnl
1240 AM_SUBST_NOTMAKE([AM_V])dnl
1241 AC_SUBST([AM_DEFAULT_V])dnl
1242 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1243 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1244 AM_BACKSLASH='\'
1245 AC_SUBST([AM_BACKSLASH])dnl
1246 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1247 ])
1248
1249 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1250 #
1251 # This file is free software; the Free Software Foundation
1252 # gives unlimited permission to copy and/or distribute it,
1253 # with or without modifications, as long as this notice is preserved.
1254
1255 # AM_PROG_INSTALL_STRIP
1256 # ---------------------
1257 # One issue with vendor 'install' (even GNU) is that you can't
1258 # specify the program used to strip binaries.  This is especially
1259 # annoying in cross-compiling environments, where the build's strip
1260 # is unlikely to handle the host's binaries.
1261 # Fortunately install-sh will honor a STRIPPROG variable, so we
1262 # always use install-sh in "make install-strip", and initialize
1263 # STRIPPROG with the value of the STRIP variable (set by the user).
1264 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1265 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1266 # Installed binaries are usually stripped using 'strip' when the user
1267 # run "make install-strip".  However 'strip' might not be the right
1268 # tool to use in cross-compilation environments, therefore Automake
1269 # will honor the 'STRIP' environment variable to overrule this program.
1270 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1271 if test "$cross_compiling" != no; then
1272   AC_CHECK_TOOL([STRIP], [strip], :)
1273 fi
1274 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1275 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1276
1277 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1278 #
1279 # This file is free software; the Free Software Foundation
1280 # gives unlimited permission to copy and/or distribute it,
1281 # with or without modifications, as long as this notice is preserved.
1282
1283 # _AM_SUBST_NOTMAKE(VARIABLE)
1284 # ---------------------------
1285 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1286 # This macro is traced by Automake.
1287 AC_DEFUN([_AM_SUBST_NOTMAKE])
1288
1289 # AM_SUBST_NOTMAKE(VARIABLE)
1290 # --------------------------
1291 # Public sister of _AM_SUBST_NOTMAKE.
1292 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1293
1294 # Check how to create a tarball.                            -*- Autoconf -*-
1295
1296 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1297 #
1298 # This file is free software; the Free Software Foundation
1299 # gives unlimited permission to copy and/or distribute it,
1300 # with or without modifications, as long as this notice is preserved.
1301
1302 # _AM_PROG_TAR(FORMAT)
1303 # --------------------
1304 # Check how to create a tarball in format FORMAT.
1305 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1306 #
1307 # Substitute a variable $(am__tar) that is a command
1308 # writing to stdout a FORMAT-tarball containing the directory
1309 # $tardir.
1310 #     tardir=directory && $(am__tar) > result.tar
1311 #
1312 # Substitute a variable $(am__untar) that extract such
1313 # a tarball read from stdin.
1314 #     $(am__untar) < result.tar
1315 #
1316 AC_DEFUN([_AM_PROG_TAR],
1317 [# Always define AMTAR for backward compatibility.  Yes, it's still used
1318 # in the wild :-(  We should find a proper way to deprecate it ...
1319 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1320
1321 # We'll loop over all known methods to create a tar archive until one works.
1322 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1323
1324 m4_if([$1], [v7],
1325   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1326
1327   [m4_case([$1],
1328     [ustar],
1329      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1330       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1331       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1332       # and bug#13588).
1333       am_max_uid=2097151 # 2^21 - 1
1334       am_max_gid=$am_max_uid
1335       # The $UID and $GID variables are not portable, so we need to resort
1336       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1337       # below are definitely unexpected, so allow the users to see them
1338       # (that is, avoid stderr redirection).
1339       am_uid=`id -u || echo unknown`
1340       am_gid=`id -g || echo unknown`
1341       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1342       if test $am_uid -le $am_max_uid; then
1343          AC_MSG_RESULT([yes])
1344       else
1345          AC_MSG_RESULT([no])
1346          _am_tools=none
1347       fi
1348       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1349       if test $am_gid -le $am_max_gid; then
1350          AC_MSG_RESULT([yes])
1351       else
1352         AC_MSG_RESULT([no])
1353         _am_tools=none
1354       fi],
1355
1356   [pax],
1357     [],
1358
1359   [m4_fatal([Unknown tar format])])
1360
1361   AC_MSG_CHECKING([how to create a $1 tar archive])
1362
1363   # Go ahead even if we have the value already cached.  We do so because we
1364   # need to set the values for the 'am__tar' and 'am__untar' variables.
1365   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1366
1367   for _am_tool in $_am_tools; do
1368     case $_am_tool in
1369     gnutar)
1370       for _am_tar in tar gnutar gtar; do
1371         AM_RUN_LOG([$_am_tar --version]) && break
1372       done
1373       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1374       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1375       am__untar="$_am_tar -xf -"
1376       ;;
1377     plaintar)
1378       # Must skip GNU tar: if it does not support --format= it doesn't create
1379       # ustar tarball either.
1380       (tar --version) >/dev/null 2>&1 && continue
1381       am__tar='tar chf - "$$tardir"'
1382       am__tar_='tar chf - "$tardir"'
1383       am__untar='tar xf -'
1384       ;;
1385     pax)
1386       am__tar='pax -L -x $1 -w "$$tardir"'
1387       am__tar_='pax -L -x $1 -w "$tardir"'
1388       am__untar='pax -r'
1389       ;;
1390     cpio)
1391       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1392       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1393       am__untar='cpio -i -H $1 -d'
1394       ;;
1395     none)
1396       am__tar=false
1397       am__tar_=false
1398       am__untar=false
1399       ;;
1400     esac
1401
1402     # If the value was cached, stop now.  We just wanted to have am__tar
1403     # and am__untar set.
1404     test -n "${am_cv_prog_tar_$1}" && break
1405
1406     # tar/untar a dummy directory, and stop if the command works.
1407     rm -rf conftest.dir
1408     mkdir conftest.dir
1409     echo GrepMe > conftest.dir/file
1410     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1411     rm -rf conftest.dir
1412     if test -s conftest.tar; then
1413       AM_RUN_LOG([$am__untar <conftest.tar])
1414       AM_RUN_LOG([cat conftest.dir/file])
1415       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1416     fi
1417   done
1418   rm -rf conftest.dir
1419
1420   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1421   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1422
1423 AC_SUBST([am__tar])
1424 AC_SUBST([am__untar])
1425 ]) # _AM_PROG_TAR
1426