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 # Copyright (C) 2002-2021 Free Software Foundation, Inc.
  24 #
  25 # This file is free software; the Free Software Foundation
  26 # gives unlimited permission to copy and/or distribute it,
  27 # with or without modifications, as long as this notice is preserved.
  28
  29 # AM_AUTOMAKE_VERSION(VERSION)
  30 # ----------------------------
  31 # Automake X.Y traces this macro to ensure aclocal.m4 has been
  32 # generated from the m4 files accompanying Automake X.Y.
  33 # (This private macro should not be called outside this file.)
  34 AC_DEFUN([AM_AUTOMAKE_VERSION],
  35 [am__api_version='1.16'
  36 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  37 dnl require some minimum version.  Point them to the right macro.
  38 m4_if([$1], [1.16.5], [],
  39       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
  40 ])
  41
  42 # _AM_AUTOCONF_VERSION(VERSION)
  43 # -----------------------------
  44 # aclocal traces this macro to find the Autoconf version.
  45 # This is a private macro too.  Using m4_define simplifies
  46 # the logic in aclocal, which can simply ignore this definition.
  47 m4_define([_AM_AUTOCONF_VERSION], [])
  48
  49 # AM_SET_CURRENT_AUTOMAKE_VERSION
  50 # -------------------------------
  51 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
  52 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
  53 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  54 [AM_AUTOMAKE_VERSION([1.16.5])dnl
  55 m4_ifndef([AC_AUTOCONF_VERSION],
  56   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  57 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  58
  59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  60
  61 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  62 #
  63 # This file is free software; the Free Software Foundation
  64 # gives unlimited permission to copy and/or distribute it,
  65 # with or without modifications, as long as this notice is preserved.
  66
  67 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  68 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
  69 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  70 #
  71 # Of course, Automake must honor this variable whenever it calls a
  72 # tool from the auxiliary directory.  The problem is that $srcdir (and
  73 # therefore $ac_aux_dir as well) can be either absolute or relative,
  74 # depending on how configure is run.  This is pretty annoying, since
  75 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  76 # source directory, any form will work fine, but in subdirectories a
  77 # relative path needs to be adjusted first.
  78 #
  79 # $ac_aux_dir/missing
  80 #    fails when called from a subdirectory if $ac_aux_dir is relative
  81 # $top_srcdir/$ac_aux_dir/missing
  82 #    fails if $ac_aux_dir is absolute,
  83 #    fails when called from a subdirectory in a VPATH build with
  84 #          a relative $ac_aux_dir
  85 #
  86 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  87 # are both prefixed by $srcdir.  In an in-source build this is usually
  88 # harmless because $srcdir is '.', but things will broke when you
  89 # start a VPATH build or use an absolute $srcdir.
  90 #
  91 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  92 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  93 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  94 # and then we would define $MISSING as
  95 #   MISSING="\${SHELL} $am_aux_dir/missing"
  96 # This will work as long as MISSING is not called from configure, because
  97 # unfortunately $(top_srcdir) has no meaning in configure.
  98 # However there are other variables, like CC, which are often used in
  99 # configure, and could therefore not use this "fixed" $ac_aux_dir.
 100 #
 101 # Another solution, used here, is to always expand $ac_aux_dir to an
 102 # absolute PATH.  The drawback is that using absolute paths prevent a
 103 # configured tree to be moved without reconfiguration.
 104
 105 AC_DEFUN([AM_AUX_DIR_EXPAND],
 106 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 107 # Expand $ac_aux_dir to an absolute path.
 108 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 109 ])
 110
 111 # AM_CONDITIONAL                                            -*- Autoconf -*-
 112
 113 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
 114 #
 115 # This file is free software; the Free Software Foundation
 116 # gives unlimited permission to copy and/or distribute it,
 117 # with or without modifications, as long as this notice is preserved.
 118
 119 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 120 # -------------------------------------
 121 # Define a conditional.
 122 AC_DEFUN([AM_CONDITIONAL],
 123 [AC_PREREQ([2.52])dnl
 124  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
 125        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 126 AC_SUBST([$1_TRUE])dnl
 127 AC_SUBST([$1_FALSE])dnl
 128 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 129 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 130 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 131 if $2; then
 132   $1_TRUE=
 133   $1_FALSE='#'
 134 else
 135   $1_TRUE='#'
 136   $1_FALSE=
 137 fi
 138 AC_CONFIG_COMMANDS_PRE(
 139 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 140   AC_MSG_ERROR([[conditional "$1" was never defined.
 141 Usually this means the macro was only invoked conditionally.]])
 142 fi])])
 143
 144 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 145 #
 146 # This file is free software; the Free Software Foundation
 147 # gives unlimited permission to copy and/or distribute it,
 148 # with or without modifications, as long as this notice is preserved.
 149
 150
 151 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 152 # written in clear, in which case automake, when reading aclocal.m4,
 153 # will think it sees a *use*, and therefore will trigger all it's
 154 # C support machinery.  Also note that it means that autoscan, seeing
 155 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 156
 157
 158 # _AM_DEPENDENCIES(NAME)
 159 # ----------------------
 160 # See how the compiler implements dependency checking.
 161 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 162 # We try a few techniques and use that to set a single cache variable.
 163 #
 164 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 165 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 166 # dependency, and given that the user is not expected to run this macro,
 167 # just rely on AC_PROG_CC.
 168 AC_DEFUN([_AM_DEPENDENCIES],
 169 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 170 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 171 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 172 AC_REQUIRE([AM_DEP_TRACK])dnl
 173
 174 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
 175       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
 176       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
 177       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
 178       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
 179       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
 180                     [depcc="$$1"   am_compiler_list=])
 181
 182 AC_CACHE_CHECK([dependency style of $depcc],
 183                [am_cv_$1_dependencies_compiler_type],
 184 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 185   # We make a subdir and do the tests there.  Otherwise we can end up
 186   # making bogus files that we don't know about and never remove.  For
 187   # instance it was reported that on HP-UX the gcc test will end up
 188   # making a dummy file named 'D' -- because '-MD' means "put the output
 189   # in D".
 190   rm -rf conftest.dir
 191   mkdir conftest.dir
 192   # Copy depcomp to subdir because otherwise we won't find it if we're
 193   # using a relative directory.
 194   cp "$am_depcomp" conftest.dir
 195   cd conftest.dir
 196   # We will build objects and dependencies in a subdirectory because
 197   # it helps to detect inapplicable dependency modes.  For instance
 198   # both Tru64's cc and ICC support -MD to output dependencies as a
 199   # side effect of compilation, but ICC will put the dependencies in
 200   # the current directory while Tru64 will put them in the object
 201   # directory.
 202   mkdir sub
 203
 204   am_cv_$1_dependencies_compiler_type=none
 205   if test "$am_compiler_list" = ""; then
 206      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
 207   fi
 208   am__universal=false
 209   m4_case([$1], [CC],
 210     [case " $depcc " in #(
 211      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 212      esac],
 213     [CXX],
 214     [case " $depcc " in #(
 215      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 216      esac])
 217
 218   for depmode in $am_compiler_list; do
 219     # Setup a source with many dependencies, because some compilers
 220     # like to wrap large dependency lists on column 80 (with \), and
 221     # we should not choose a depcomp mode which is confused by this.
 222     #
 223     # We need to recreate these files for each test, as the compiler may
 224     # overwrite some of them when testing with obscure command lines.
 225     # This happens at least with the AIX C compiler.
 226     : > sub/conftest.c
 227     for i in 1 2 3 4 5 6; do
 228       echo '#include "conftst'$i'.h"' >> sub/conftest.c
 229       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
 230       # Solaris 10 /bin/sh.
 231       echo '/* dummy */' > sub/conftst$i.h
 232     done
 233     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 234
 235     # We check with '-c' and '-o' for the sake of the "dashmstdout"
 236     # mode.  It turns out that the SunPro C++ compiler does not properly
 237     # handle '-M -o', and we need to detect this.  Also, some Intel
 238     # versions had trouble with output in subdirs.
 239     am__obj=sub/conftest.${OBJEXT-o}
 240     am__minus_obj="-o $am__obj"
 241     case $depmode in
 242     gcc)
 243       # This depmode causes a compiler race in universal mode.
 244       test "$am__universal" = false || continue
 245       ;;
 246     nosideeffect)
 247       # After this tag, mechanisms are not by side-effect, so they'll
 248       # only be used when explicitly requested.
 249       if test "x$enable_dependency_tracking" = xyes; then
 250         continue
 251       else
 252         break
 253       fi
 254       ;;
 255     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 256       # This compiler won't grok '-c -o', but also, the minuso test has
 257       # not run yet.  These depmodes are late enough in the game, and
 258       # so weak that their functioning should not be impacted.
 259       am__obj=conftest.${OBJEXT-o}
 260       am__minus_obj=
 261       ;;
 262     none) break ;;
 263     esac
 264     if depmode=$depmode \
 265        source=sub/conftest.c object=$am__obj \
 266        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 267        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 268          >/dev/null 2>conftest.err &&
 269        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 270        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 271        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 272        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 273       # icc doesn't choke on unknown options, it will just issue warnings
 274       # or remarks (even with -Werror).  So we grep stderr for any message
 275       # that says an option was ignored or not supported.
 276       # When given -MP, icc 7.0 and 7.1 complain thusly:
 277       #   icc: Command line warning: ignoring option '-M'; no argument required
 278       # The diagnosis changed in icc 8.0:
 279       #   icc: Command line remark: option '-MP' not supported
 280       if (grep 'ignoring option' conftest.err ||
 281           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 282         am_cv_$1_dependencies_compiler_type=$depmode
 283         break
 284       fi
 285     fi
 286   done
 287
 288   cd ..
 289   rm -rf conftest.dir
 290 else
 291   am_cv_$1_dependencies_compiler_type=none
 292 fi
 293 ])
 294 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 295 AM_CONDITIONAL([am__fastdep$1], [
 296   test "x$enable_dependency_tracking" != xno \
 297   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 298 ])
 299
 300
 301 # AM_SET_DEPDIR
 302 # -------------
 303 # Choose a directory name for dependency files.
 304 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 305 AC_DEFUN([AM_SET_DEPDIR],
 306 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 307 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 308 ])
 309
 310
 311 # AM_DEP_TRACK
 312 # ------------
 313 AC_DEFUN([AM_DEP_TRACK],
 314 [AC_ARG_ENABLE([dependency-tracking], [dnl
 315 AS_HELP_STRING(
 316   [--enable-dependency-tracking],
 317   [do not reject slow dependency extractors])
 318 AS_HELP_STRING(
 319   [--disable-dependency-tracking],
 320   [speeds up one-time build])])
 321 if test "x$enable_dependency_tracking" != xno; then
 322   am_depcomp="$ac_aux_dir/depcomp"
 323   AMDEPBACKSLASH='\'
 324   am__nodep='_no'
 325 fi
 326 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 327 AC_SUBST([AMDEPBACKSLASH])dnl
 328 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 329 AC_SUBST([am__nodep])dnl
 330 _AM_SUBST_NOTMAKE([am__nodep])dnl
 331 ])
 332
 333 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 334
 335 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 336 #
 337 # This file is free software; the Free Software Foundation
 338 # gives unlimited permission to copy and/or distribute it,
 339 # with or without modifications, as long as this notice is preserved.
 340
 341 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 342 # ------------------------------
 343 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 344 [{
 345   # Older Autoconf quotes --file arguments for eval, but not when files
 346   # are listed without --file.  Let's play safe and only enable the eval
 347   # if we detect the quoting.
 348   # TODO: see whether this extra hack can be removed once we start
 349   # requiring Autoconf 2.70 or later.
 350   AS_CASE([$CONFIG_FILES],
 351           [*\'*], [eval set x "$CONFIG_FILES"],
 352           [*], [set x $CONFIG_FILES])
 353   shift
 354   # Used to flag and report bootstrapping failures.
 355   am_rc=0
 356   for am_mf
 357   do
 358     # Strip MF so we end up with the name of the file.
 359     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
 360     # Check whether this is an Automake generated Makefile which includes
 361     # dependency-tracking related rules and includes.
 362     # Grep'ing the whole file directly is not great: AIX grep has a line
 363     # limit of 2048, but all sed's we know have understand at least 4000.
 364     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
 365       || continue
 366     am_dirpart=`AS_DIRNAME(["$am_mf"])`
 367     am_filepart=`AS_BASENAME(["$am_mf"])`
 368     AM_RUN_LOG([cd "$am_dirpart" \
 369       && sed -e '/# am--include-marker/d' "$am_filepart" \
 370         | $MAKE -f - am--depfiles]) || am_rc=$?
 371   done
 372   if test $am_rc -ne 0; then
 373     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
 374     for automatic dependency tracking.  If GNU make was not used, consider
 375     re-running the configure script with MAKE="gmake" (or whatever is
 376     necessary).  You can also try re-running configure with the
 377     '--disable-dependency-tracking' option to at least be able to build
 378     the package (albeit without support for automatic dependency tracking).])
 379   fi
 380   AS_UNSET([am_dirpart])
 381   AS_UNSET([am_filepart])
 382   AS_UNSET([am_mf])
 383   AS_UNSET([am_rc])
 384   rm -f conftest-deps.mk
 385 }
 386 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 387
 388
 389 # AM_OUTPUT_DEPENDENCY_COMMANDS
 390 # -----------------------------
 391 # This macro should only be invoked once -- use via AC_REQUIRE.
 392 #
 393 # This code is only required when automatic dependency tracking is enabled.
 394 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
 395 # order to bootstrap the dependency handling code.
 396 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 397 [AC_CONFIG_COMMANDS([depfiles],
 398      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
 399      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
 400
 401 # Do all the work for Automake.                             -*- Autoconf -*-
 402
 403 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 404 #
 405 # This file is free software; the Free Software Foundation
 406 # gives unlimited permission to copy and/or distribute it,
 407 # with or without modifications, as long as this notice is preserved.
 408
 409 # This macro actually does too much.  Some checks are only needed if
 410 # your package does certain things.  But this isn't really a big deal.
 411
 412 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 413 m4_define([AC_PROG_CC],
 414 m4_defn([AC_PROG_CC])
 415 [_AM_PROG_CC_C_O
 416 ])
 417
 418 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 419 # AM_INIT_AUTOMAKE([OPTIONS])
 420 # -----------------------------------------------
 421 # The call with PACKAGE and VERSION arguments is the old style
 422 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 423 # and VERSION should now be passed to AC_INIT and removed from
 424 # the call to AM_INIT_AUTOMAKE.
 425 # We support both call styles for the transition.  After
 426 # the next Automake release, Autoconf can make the AC_INIT
 427 # arguments mandatory, and then we can depend on a new Autoconf
 428 # release and drop the old call support.
 429 AC_DEFUN([AM_INIT_AUTOMAKE],
 430 [AC_PREREQ([2.65])dnl
 431 m4_ifdef([_$0_ALREADY_INIT],
 432   [m4_fatal([$0 expanded multiple times
 433 ]m4_defn([_$0_ALREADY_INIT]))],
 434   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
 435 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 436 dnl the ones we care about.
 437 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 438 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 439 AC_REQUIRE([AC_PROG_INSTALL])dnl
 440 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 441   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 442   # is not polluted with repeated "-I."
 443   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 444   # test to see if srcdir already configured
 445   if test -f $srcdir/config.status; then
 446     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 447   fi
 448 fi
 449
 450 # test whether we have cygpath
 451 if test -z "$CYGPATH_W"; then
 452   if (cygpath --version) >/dev/null 2>/dev/null; then
 453     CYGPATH_W='cygpath -w'
 454   else
 455     CYGPATH_W=echo
 456   fi
 457 fi
 458 AC_SUBST([CYGPATH_W])
 459
 460 # Define the identity of the package.
 461 dnl Distinguish between old-style and new-style calls.
 462 m4_ifval([$2],
 463 [AC_DIAGNOSE([obsolete],
 464              [$0: two- and three-arguments forms are deprecated.])
 465 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 466  AC_SUBST([PACKAGE], [$1])dnl
 467  AC_SUBST([VERSION], [$2])],
 468 [_AM_SET_OPTIONS([$1])dnl
 469 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 470 m4_if(
 471   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
 472   [ok:ok],,
 473   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 474  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 475  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 476
 477 _AM_IF_OPTION([no-define],,
 478 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 479  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 480
 481 # Some tools Automake needs.
 482 AC_REQUIRE([AM_SANITY_CHECK])dnl
 483 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 484 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 485 AM_MISSING_PROG([AUTOCONF], [autoconf])
 486 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 487 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 488 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 489 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 490 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 491 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 492 # For better backward compatibility.  To be removed once Automake 1.9.x
 493 # dies out for good.  For more background, see:
 494 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 495 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 496 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 497 # We need awk for the "check" target (and possibly the TAP driver).  The
 498 # system "awk" is bad on some platforms.
 499 AC_REQUIRE([AC_PROG_AWK])dnl
 500 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 501 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 502 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 503               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 504                              [_AM_PROG_TAR([v7])])])
 505 _AM_IF_OPTION([no-dependencies],,
 506 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 507                   [_AM_DEPENDENCIES([CC])],
 508                   [m4_define([AC_PROG_CC],
 509                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 510 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 511                   [_AM_DEPENDENCIES([CXX])],
 512                   [m4_define([AC_PROG_CXX],
 513                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 514 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 515                   [_AM_DEPENDENCIES([OBJC])],
 516                   [m4_define([AC_PROG_OBJC],
 517                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 518 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 519                   [_AM_DEPENDENCIES([OBJCXX])],
 520                   [m4_define([AC_PROG_OBJCXX],
 521                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 522 ])
 523 # Variables for tags utilities; see am/tags.am
 524 if test -z "$CTAGS"; then
 525   CTAGS=ctags
 526 fi
 527 AC_SUBST([CTAGS])
 528 if test -z "$ETAGS"; then
 529   ETAGS=etags
 530 fi
 531 AC_SUBST([ETAGS])
 532 if test -z "$CSCOPE"; then
 533   CSCOPE=cscope
 534 fi
 535 AC_SUBST([CSCOPE])
 536
 537 AC_REQUIRE([AM_SILENT_RULES])dnl
 538 dnl The testsuite driver may need to know about EXEEXT, so add the
 539 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 540 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 541 AC_CONFIG_COMMANDS_PRE(dnl
 542 [m4_provide_if([_AM_COMPILER_EXEEXT],
 543   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 544
 545 # POSIX will say in a future version that running "rm -f" with no argument
 546 # is OK; and we want to be able to make that assumption in our Makefile
 547 # recipes.  So use an aggressive probe to check that the usage we want is
 548 # actually supported "in the wild" to an acceptable degree.
 549 # See automake bug#10828.
 550 # To make any issue more visible, cause the running configure to be aborted
 551 # by default if the 'rm' program in use doesn't match our expectations; the
 552 # user can still override this though.
 553 if rm -f && rm -fr && rm -rf; then : OK; else
 554   cat >&2 <<'END'
 555 Oops!
 556
 557 Your 'rm' program seems unable to run without file operands specified
 558 on the command line, even when the '-f' option is present.  This is contrary
 559 to the behaviour of most rm programs out there, and not conforming with
 560 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 561
 562 Please tell bug-automake@gnu.org about your system, including the value
 563 of your $PATH and any error possibly output before this message.  This
 564 can help us improve future automake versions.
 565
 566 END
 567   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 568     echo 'Configuration will proceed anyway, since you have set the' >&2
 569     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 570     echo >&2
 571   else
 572     cat >&2 <<'END'
 573 Aborting the configuration process, to ensure you take notice of the issue.
 574
 575 You can download and install GNU coreutils to get an 'rm' implementation
 576 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 577
 578 If you want to complete the configuration process using your problematic
 579 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 580 to "yes", and re-run configure.
 581
 582 END
 583     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 584   fi
 585 fi
 586 dnl The trailing newline in this macro's definition is deliberate, for
 587 dnl backward compatibility and to allow trailing 'dnl'-style comments
 588 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 589 ])
 590
 591 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 592 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 593 dnl mangled by Autoconf and run in a shell conditional statement.
 594 m4_define([_AC_COMPILER_EXEEXT],
 595 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 596
 597 # When config.status generates a header, we must update the stamp-h file.
 598 # This file resides in the same directory as the config header
 599 # that is generated.  The stamp files are numbered to have different names.
 600
 601 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 602 # loop where config.status creates the headers, so we can generate
 603 # our stamp files there.
 604 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 605 [# Compute $1's index in $config_headers.
 606 _am_arg=$1
 607 _am_stamp_count=1
 608 for _am_header in $config_headers :; do
 609   case $_am_header in
 610     $_am_arg | $_am_arg:* )
 611       break ;;
 612     * )
 613       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 614   esac
 615 done
 616 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 617
 618 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 619 #
 620 # This file is free software; the Free Software Foundation
 621 # gives unlimited permission to copy and/or distribute it,
 622 # with or without modifications, as long as this notice is preserved.
 623
 624 # AM_PROG_INSTALL_SH
 625 # ------------------
 626 # Define $install_sh.
 627 AC_DEFUN([AM_PROG_INSTALL_SH],
 628 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 629 if test x"${install_sh+set}" != xset; then
 630   case $am_aux_dir in
 631   *\ * | *\     *)
 632     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 633   *)
 634     install_sh="\${SHELL} $am_aux_dir/install-sh"
 635   esac
 636 fi
 637 AC_SUBST([install_sh])])
 638
 639 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
 640 #
 641 # This file is free software; the Free Software Foundation
 642 # gives unlimited permission to copy and/or distribute it,
 643 # with or without modifications, as long as this notice is preserved.
 644
 645 # Check whether the underlying file-system supports filenames
 646 # with a leading dot.  For instance MS-DOS doesn't.
 647 AC_DEFUN([AM_SET_LEADING_DOT],
 648 [rm -rf .tst 2>/dev/null
 649 mkdir .tst 2>/dev/null
 650 if test -d .tst; then
 651   am__leading_dot=.
 652 else
 653   am__leading_dot=_
 654 fi
 655 rmdir .tst 2>/dev/null
 656 AC_SUBST([am__leading_dot])])
 657
 658 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 659 # From Jim Meyering
 660
 661 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 662 #
 663 # This file is free software; the Free Software Foundation
 664 # gives unlimited permission to copy and/or distribute it,
 665 # with or without modifications, as long as this notice is preserved.
 666
 667 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 668 # ----------------------------------
 669 # Control maintainer-specific portions of Makefiles.
 670 # Default is to disable them, unless 'enable' is passed literally.
 671 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 672 # can override the default with the --enable/--disable switch.
 673 AC_DEFUN([AM_MAINTAINER_MODE],
 674 [m4_case(m4_default([$1], [disable]),
 675        [enable], [m4_define([am_maintainer_other], [disable])],
 676        [disable], [m4_define([am_maintainer_other], [enable])],
 677        [m4_define([am_maintainer_other], [enable])
 678         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 679 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 680   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 681   AC_ARG_ENABLE([maintainer-mode],
 682     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 683       am_maintainer_other[ make rules and dependencies not useful
 684       (and sometimes confusing) to the casual installer])],
 685     [USE_MAINTAINER_MODE=$enableval],
 686     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 687   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 688   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 689   MAINT=$MAINTAINER_MODE_TRUE
 690   AC_SUBST([MAINT])dnl
 691 ]
 692 )
 693
 694 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 695
 696 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 697 #
 698 # This file is free software; the Free Software Foundation
 699 # gives unlimited permission to copy and/or distribute it,
 700 # with or without modifications, as long as this notice is preserved.
 701
 702 # AM_MAKE_INCLUDE()
 703 # -----------------
 704 # Check whether make has an 'include' directive that can support all
 705 # the idioms we need for our automatic dependency tracking code.
 706 AC_DEFUN([AM_MAKE_INCLUDE],
 707 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
 708 cat > confinc.mk << 'END'
 709 am__doit:
 710         @echo this is the am__doit target >confinc.out
 711 .PHONY: am__doit
 712 END
 713 am__include="#"
 714 am__quote=
 715 # BSD make does it like this.
 716 echo '.include "confinc.mk" # ignored' > confmf.BSD
 717 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 718 echo 'include confinc.mk # ignored' > confmf.GNU
 719 _am_result=no
 720 for s in GNU BSD; do
 721   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
 722   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
 723       ['0:this is the am__doit target'],
 724       [AS_CASE([$s],
 725           [BSD], [am__include='.include' am__quote='"'],
 726           [am__include='include' am__quote=''])])
 727   if test "$am__include" != "#"; then
 728     _am_result="yes ($s style)"
 729     break
 730   fi
 731 done
 732 rm -f confinc.* confmf.*
 733 AC_MSG_RESULT([${_am_result}])
 734 AC_SUBST([am__include])])
 735 AC_SUBST([am__quote])])
 736
 737 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 738
 739 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
 740 #
 741 # This file is free software; the Free Software Foundation
 742 # gives unlimited permission to copy and/or distribute it,
 743 # with or without modifications, as long as this notice is preserved.
 744
 745 # AM_MISSING_PROG(NAME, PROGRAM)
 746 # ------------------------------
 747 AC_DEFUN([AM_MISSING_PROG],
 748 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 749 $1=${$1-"${am_missing_run}$2"}
 750 AC_SUBST($1)])
 751
 752 # AM_MISSING_HAS_RUN
 753 # ------------------
 754 # Define MISSING if not defined so far and test if it is modern enough.
 755 # If it is, set am_missing_run to use it, otherwise, to nothing.
 756 AC_DEFUN([AM_MISSING_HAS_RUN],
 757 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 758 AC_REQUIRE_AUX_FILE([missing])dnl
 759 if test x"${MISSING+set}" != xset; then
 760   MISSING="\${SHELL} '$am_aux_dir/missing'"
 761 fi
 762 # Use eval to expand $SHELL
 763 if eval "$MISSING --is-lightweight"; then
 764   am_missing_run="$MISSING "
 765 else
 766   am_missing_run=
 767   AC_MSG_WARN(['missing' script is too old or missing])
 768 fi
 769 ])
 770
 771 # Helper functions for option handling.                     -*- Autoconf -*-
 772
 773 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 774 #
 775 # This file is free software; the Free Software Foundation
 776 # gives unlimited permission to copy and/or distribute it,
 777 # with or without modifications, as long as this notice is preserved.
 778
 779 # _AM_MANGLE_OPTION(NAME)
 780 # -----------------------
 781 AC_DEFUN([_AM_MANGLE_OPTION],
 782 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 783
 784 # _AM_SET_OPTION(NAME)
 785 # --------------------
 786 # Set option NAME.  Presently that only means defining a flag for this option.
 787 AC_DEFUN([_AM_SET_OPTION],
 788 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 789
 790 # _AM_SET_OPTIONS(OPTIONS)
 791 # ------------------------
 792 # OPTIONS is a space-separated list of Automake options.
 793 AC_DEFUN([_AM_SET_OPTIONS],
 794 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 795
 796 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 797 # -------------------------------------------
 798 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 799 AC_DEFUN([_AM_IF_OPTION],
 800 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 801
 802 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 803 #
 804 # This file is free software; the Free Software Foundation
 805 # gives unlimited permission to copy and/or distribute it,
 806 # with or without modifications, as long as this notice is preserved.
 807
 808 # _AM_PROG_CC_C_O
 809 # ---------------
 810 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 811 # to automatically call this.
 812 AC_DEFUN([_AM_PROG_CC_C_O],
 813 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 814 AC_REQUIRE_AUX_FILE([compile])dnl
 815 AC_LANG_PUSH([C])dnl
 816 AC_CACHE_CHECK(
 817   [whether $CC understands -c and -o together],
 818   [am_cv_prog_cc_c_o],
 819   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 820   # Make sure it works both with $CC and with simple cc.
 821   # Following AC_PROG_CC_C_O, we do the test twice because some
 822   # compilers refuse to overwrite an existing .o file with -o,
 823   # though they will create one.
 824   am_cv_prog_cc_c_o=yes
 825   for am_i in 1 2; do
 826     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 827          && test -f conftest2.$ac_objext; then
 828       : OK
 829     else
 830       am_cv_prog_cc_c_o=no
 831       break
 832     fi
 833   done
 834   rm -f core conftest*
 835   unset am_i])
 836 if test "$am_cv_prog_cc_c_o" != yes; then
 837    # Losing compiler, so override with the script.
 838    # FIXME: It is wrong to rewrite CC.
 839    # But if we don't then we get into trouble of one sort or another.
 840    # A longer-term fix would be to have automake use am__CC in this case,
 841    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 842    CC="$am_aux_dir/compile $CC"
 843 fi
 844 AC_LANG_POP([C])])
 845
 846 # For backward compatibility.
 847 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 848
 849 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 850 #
 851 # This file is free software; the Free Software Foundation
 852 # gives unlimited permission to copy and/or distribute it,
 853 # with or without modifications, as long as this notice is preserved.
 854
 855 # AM_RUN_LOG(COMMAND)
 856 # -------------------
 857 # Run COMMAND, save the exit status in ac_status, and log it.
 858 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 859 AC_DEFUN([AM_RUN_LOG],
 860 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 861    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 862    ac_status=$?
 863    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 864    (exit $ac_status); }])
 865
 866 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 867
 868 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 869 #
 870 # This file is free software; the Free Software Foundation
 871 # gives unlimited permission to copy and/or distribute it,
 872 # with or without modifications, as long as this notice is preserved.
 873
 874 # AM_SANITY_CHECK
 875 # ---------------
 876 AC_DEFUN([AM_SANITY_CHECK],
 877 [AC_MSG_CHECKING([whether build environment is sane])
 878 # Reject unsafe characters in $srcdir or the absolute working directory
 879 # name.  Accept space and tab only in the latter.
 880 am_lf='
 881 '
 882 case `pwd` in
 883   *[[\\\"\#\$\&\'\`$am_lf]]*)
 884     AC_MSG_ERROR([unsafe absolute working directory name]);;
 885 esac
 886 case $srcdir in
 887   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 888     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 889 esac
 890
 891 # Do 'set' in a subshell so we don't clobber the current shell's
 892 # arguments.  Must try -L first in case configure is actually a
 893 # symlink; some systems play weird games with the mod time of symlinks
 894 # (eg FreeBSD returns the mod time of the symlink's containing
 895 # directory).
 896 if (
 897    am_has_slept=no
 898    for am_try in 1 2; do
 899      echo "timestamp, slept: $am_has_slept" > conftest.file
 900      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 901      if test "$[*]" = "X"; then
 902         # -L didn't work.
 903         set X `ls -t "$srcdir/configure" conftest.file`
 904      fi
 905      if test "$[*]" != "X $srcdir/configure conftest.file" \
 906         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 907
 908         # If neither matched, then we have a broken ls.  This can happen
 909         # if, for instance, CONFIG_SHELL is bash and it inherits a
 910         # broken ls alias from the environment.  This has actually
 911         # happened.  Such a system could not be considered "sane".
 912         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 913   alias in your environment])
 914      fi
 915      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 916        break
 917      fi
 918      # Just in case.
 919      sleep 1
 920      am_has_slept=yes
 921    done
 922    test "$[2]" = conftest.file
 923    )
 924 then
 925    # Ok.
 926    :
 927 else
 928    AC_MSG_ERROR([newly created file is older than distributed files!
 929 Check your system clock])
 930 fi
 931 AC_MSG_RESULT([yes])
 932 # If we didn't sleep, we still need to ensure time stamps of config.status and
 933 # generated files are strictly newer.
 934 am_sleep_pid=
 935 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 936   ( sleep 1 ) &
 937   am_sleep_pid=$!
 938 fi
 939 AC_CONFIG_COMMANDS_PRE(
 940   [AC_MSG_CHECKING([that generated files are newer than configure])
 941    if test -n "$am_sleep_pid"; then
 942      # Hide warnings about reused PIDs.
 943      wait $am_sleep_pid 2>/dev/null
 944    fi
 945    AC_MSG_RESULT([done])])
 946 rm -f conftest.file
 947 ])
 948
 949 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
 950 #
 951 # This file is free software; the Free Software Foundation
 952 # gives unlimited permission to copy and/or distribute it,
 953 # with or without modifications, as long as this notice is preserved.
 954
 955 # AM_SILENT_RULES([DEFAULT])
 956 # --------------------------
 957 # Enable less verbose build rules; with the default set to DEFAULT
 958 # ("yes" being less verbose, "no" or empty being verbose).
 959 AC_DEFUN([AM_SILENT_RULES],
 960 [AC_ARG_ENABLE([silent-rules], [dnl
 961 AS_HELP_STRING(
 962   [--enable-silent-rules],
 963   [less verbose build output (undo: "make V=1")])
 964 AS_HELP_STRING(
 965   [--disable-silent-rules],
 966   [verbose build output (undo: "make V=0")])dnl
 967 ])
 968 case $enable_silent_rules in @%:@ (((
 969   yes) AM_DEFAULT_VERBOSITY=0;;
 970    no) AM_DEFAULT_VERBOSITY=1;;
 971     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 972 esac
 973 dnl
 974 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 975 dnl do not support nested variable expansions.
 976 dnl See automake bug#9928 and bug#10237.
 977 am_make=${MAKE-make}
 978 AC_CACHE_CHECK([whether $am_make supports nested variables],
 979    [am_cv_make_support_nested_variables],
 980    [if AS_ECHO([['TRUE=$(BAR$(V))
 981 BAR0=false
 982 BAR1=true
 983 V=1
 984 am__doit:
 985         @$(TRUE)
 986 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 987   am_cv_make_support_nested_variables=yes
 988 else
 989   am_cv_make_support_nested_variables=no
 990 fi])
 991 if test $am_cv_make_support_nested_variables = yes; then
 992   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 993   AM_V='$(V)'
 994   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 995 else
 996   AM_V=$AM_DEFAULT_VERBOSITY
 997   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 998 fi
 999 AC_SUBST([AM_V])dnl
1000 AM_SUBST_NOTMAKE([AM_V])dnl
1001 AC_SUBST([AM_DEFAULT_V])dnl
1002 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1003 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1004 AM_BACKSLASH='\'
1005 AC_SUBST([AM_BACKSLASH])dnl
1006 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1007 ])
1008
1009 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1010 #
1011 # This file is free software; the Free Software Foundation
1012 # gives unlimited permission to copy and/or distribute it,
1013 # with or without modifications, as long as this notice is preserved.
1014
1015 # AM_PROG_INSTALL_STRIP
1016 # ---------------------
1017 # One issue with vendor 'install' (even GNU) is that you can't
1018 # specify the program used to strip binaries.  This is especially
1019 # annoying in cross-compiling environments, where the build's strip
1020 # is unlikely to handle the host's binaries.
1021 # Fortunately install-sh will honor a STRIPPROG variable, so we
1022 # always use install-sh in "make install-strip", and initialize
1023 # STRIPPROG with the value of the STRIP variable (set by the user).
1024 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1025 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1026 # Installed binaries are usually stripped using 'strip' when the user
1027 # run "make install-strip".  However 'strip' might not be the right
1028 # tool to use in cross-compilation environments, therefore Automake
1029 # will honor the 'STRIP' environment variable to overrule this program.
1030 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1031 if test "$cross_compiling" != no; then
1032   AC_CHECK_TOOL([STRIP], [strip], :)
1033 fi
1034 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1035 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1036
1037 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1038 #
1039 # This file is free software; the Free Software Foundation
1040 # gives unlimited permission to copy and/or distribute it,
1041 # with or without modifications, as long as this notice is preserved.
1042
1043 # _AM_SUBST_NOTMAKE(VARIABLE)
1044 # ---------------------------
1045 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1046 # This macro is traced by Automake.
1047 AC_DEFUN([_AM_SUBST_NOTMAKE])
1048
1049 # AM_SUBST_NOTMAKE(VARIABLE)
1050 # --------------------------
1051 # Public sister of _AM_SUBST_NOTMAKE.
1052 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1053
1054 # Check how to create a tarball.                            -*- Autoconf -*-
1055
1056 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1057 #
1058 # This file is free software; the Free Software Foundation
1059 # gives unlimited permission to copy and/or distribute it,
1060 # with or without modifications, as long as this notice is preserved.
1061
1062 # _AM_PROG_TAR(FORMAT)
1063 # --------------------
1064 # Check how to create a tarball in format FORMAT.
1065 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1066 #
1067 # Substitute a variable $(am__tar) that is a command
1068 # writing to stdout a FORMAT-tarball containing the directory
1069 # $tardir.
1070 #     tardir=directory && $(am__tar) > result.tar
1071 #
1072 # Substitute a variable $(am__untar) that extract such
1073 # a tarball read from stdin.
1074 #     $(am__untar) < result.tar
1075 #
1076 AC_DEFUN([_AM_PROG_TAR],
1077 [# Always define AMTAR for backward compatibility.  Yes, it's still used
1078 # in the wild :-(  We should find a proper way to deprecate it ...
1079 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1080
1081 # We'll loop over all known methods to create a tar archive until one works.
1082 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1083
1084 m4_if([$1], [v7],
1085   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1086
1087   [m4_case([$1],
1088     [ustar],
1089      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1090       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1091       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1092       # and bug#13588).
1093       am_max_uid=2097151 # 2^21 - 1
1094       am_max_gid=$am_max_uid
1095       # The $UID and $GID variables are not portable, so we need to resort
1096       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1097       # below are definitely unexpected, so allow the users to see them
1098       # (that is, avoid stderr redirection).
1099       am_uid=`id -u || echo unknown`
1100       am_gid=`id -g || echo unknown`
1101       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1102       if test $am_uid -le $am_max_uid; then
1103          AC_MSG_RESULT([yes])
1104       else
1105          AC_MSG_RESULT([no])
1106          _am_tools=none
1107       fi
1108       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1109       if test $am_gid -le $am_max_gid; then
1110          AC_MSG_RESULT([yes])
1111       else
1112         AC_MSG_RESULT([no])
1113         _am_tools=none
1114       fi],
1115
1116   [pax],
1117     [],
1118
1119   [m4_fatal([Unknown tar format])])
1120
1121   AC_MSG_CHECKING([how to create a $1 tar archive])
1122
1123   # Go ahead even if we have the value already cached.  We do so because we
1124   # need to set the values for the 'am__tar' and 'am__untar' variables.
1125   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1126
1127   for _am_tool in $_am_tools; do
1128     case $_am_tool in
1129     gnutar)
1130       for _am_tar in tar gnutar gtar; do
1131         AM_RUN_LOG([$_am_tar --version]) && break
1132       done
1133       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1134       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1135       am__untar="$_am_tar -xf -"
1136       ;;
1137     plaintar)
1138       # Must skip GNU tar: if it does not support --format= it doesn't create
1139       # ustar tarball either.
1140       (tar --version) >/dev/null 2>&1 && continue
1141       am__tar='tar chf - "$$tardir"'
1142       am__tar_='tar chf - "$tardir"'
1143       am__untar='tar xf -'
1144       ;;
1145     pax)
1146       am__tar='pax -L -x $1 -w "$$tardir"'
1147       am__tar_='pax -L -x $1 -w "$tardir"'
1148       am__untar='pax -r'
1149       ;;
1150     cpio)
1151       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1152       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1153       am__untar='cpio -i -H $1 -d'
1154       ;;
1155     none)
1156       am__tar=false
1157       am__tar_=false
1158       am__untar=false
1159       ;;
1160     esac
1161
1162     # If the value was cached, stop now.  We just wanted to have am__tar
1163     # and am__untar set.
1164     test -n "${am_cv_prog_tar_$1}" && break
1165
1166     # tar/untar a dummy directory, and stop if the command works.
1167     rm -rf conftest.dir
1168     mkdir conftest.dir
1169     echo GrepMe > conftest.dir/file
1170     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1171     rm -rf conftest.dir
1172     if test -s conftest.tar; then
1173       AM_RUN_LOG([$am__untar <conftest.tar])
1174       AM_RUN_LOG([cat conftest.dir/file])
1175       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1176     fi
1177   done
1178   rm -rf conftest.dir
1179
1180   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1181   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1182
1183 AC_SUBST([am__tar])
1184 AC_SUBST([am__untar])
1185 ]) # _AM_PROG_TAR
1186
1187 m4_include([m4/ax_append_compile_flags.m4])
1188 m4_include([m4/ax_append_flag.m4])
1189 m4_include([m4/ax_arg_enable_assert.m4])
1190 m4_include([m4/ax_arg_enable_efence.m4])
1191 m4_include([m4/ax_arg_enable_warnings.m4])
1192 m4_include([m4/ax_arg_openssl.m4])
1193 m4_include([m4/ax_check_compile_flag.m4])
1194 m4_include([m4/ax_gcc_stack_protect.m4])
1195 m4_include([m4/ax_library_net.m4])
1196 m4_include([m4/ax_require_defined.m4])
1197 m4_include([m4/libtool.m4])
1198 m4_include([m4/ltoptions.m4])
1199 m4_include([m4/ltsugar.m4])
1200 m4_include([m4/ltversion.m4])
1201 m4_include([m4/lt~obsolete.m4])