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]), [2.69],,
  18 [m4_warning([this file was generated for autoconf 2.69.
  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
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  38 m4_if([$1], [1.16.5], [],
  39       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
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  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],
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  55 m4_ifndef([AC_AUTOCONF_VERSION],
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  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_COND_IF                                            -*- Autoconf -*-
 112
 113 # Copyright (C) 2008-2021 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_COND_IF
 120 # _AM_COND_ELSE
 121 # _AM_COND_ENDIF
 122 # --------------
 123 # These macros are only used for tracing.
 124 m4_define([_AM_COND_IF])
 125 m4_define([_AM_COND_ELSE])
 126 m4_define([_AM_COND_ENDIF])
 127
 128 # AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
 129 # ---------------------------------------
 130 # If the shell condition COND is true, execute IF-TRUE, otherwise execute
 131 # IF-FALSE.  Allow automake to learn about conditional instantiating macros
 132 # (the AC_CONFIG_FOOS).
 133 AC_DEFUN([AM_COND_IF],
 134 [m4_ifndef([_AM_COND_VALUE_$1],
 135            [m4_fatal([$0: no such condition "$1"])])dnl
 136 _AM_COND_IF([$1])dnl
 137 if test -z "$$1_TRUE"; then :
 138   m4_n([$2])[]dnl
 139 m4_ifval([$3],
 140 [_AM_COND_ELSE([$1])dnl
 141 else
 142   $3
 143 ])dnl
 144 _AM_COND_ENDIF([$1])dnl
 145 fi[]dnl
 146 ])
 147
 148 # AM_CONDITIONAL                                            -*- Autoconf -*-
 149
 150 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
 151 #
 152 # This file is free software; the Free Software Foundation
 153 # gives unlimited permission to copy and/or distribute it,
 154 # with or without modifications, as long as this notice is preserved.
 155
 156 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 157 # -------------------------------------
 158 # Define a conditional.
 159 AC_DEFUN([AM_CONDITIONAL],
 160 [AC_PREREQ([2.52])dnl
 161  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
 162        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 163 AC_SUBST([$1_TRUE])dnl
 164 AC_SUBST([$1_FALSE])dnl
 165 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 166 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 167 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 168 if $2; then
 169   $1_TRUE=
 170   $1_FALSE='#'
 171 else
 172   $1_TRUE='#'
 173   $1_FALSE=
 174 fi
 175 AC_CONFIG_COMMANDS_PRE(
 176 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 177   AC_MSG_ERROR([[conditional "$1" was never defined.
 178 Usually this means the macro was only invoked conditionally.]])
 179 fi])])
 180
 181 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 182 #
 183 # This file is free software; the Free Software Foundation
 184 # gives unlimited permission to copy and/or distribute it,
 185 # with or without modifications, as long as this notice is preserved.
 186
 187
 188 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 189 # written in clear, in which case automake, when reading aclocal.m4,
 190 # will think it sees a *use*, and therefore will trigger all it's
 191 # C support machinery.  Also note that it means that autoscan, seeing
 192 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 193
 194
 195 # _AM_DEPENDENCIES(NAME)
 196 # ----------------------
 197 # See how the compiler implements dependency checking.
 198 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 199 # We try a few techniques and use that to set a single cache variable.
 200 #
 201 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 202 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 203 # dependency, and given that the user is not expected to run this macro,
 204 # just rely on AC_PROG_CC.
 205 AC_DEFUN([_AM_DEPENDENCIES],
 206 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 207 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 208 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 209 AC_REQUIRE([AM_DEP_TRACK])dnl
 210
 211 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
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 214       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
 215       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
 216       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
 217                     [depcc="$$1"   am_compiler_list=])
 218
 219 AC_CACHE_CHECK([dependency style of $depcc],
 220                [am_cv_$1_dependencies_compiler_type],
 221 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 222   # We make a subdir and do the tests there.  Otherwise we can end up
 223   # making bogus files that we don't know about and never remove.  For
 224   # instance it was reported that on HP-UX the gcc test will end up
 225   # making a dummy file named 'D' -- because '-MD' means "put the output
 226   # in D".
 227   rm -rf conftest.dir
 228   mkdir conftest.dir
 229   # Copy depcomp to subdir because otherwise we won't find it if we're
 230   # using a relative directory.
 231   cp "$am_depcomp" conftest.dir
 232   cd conftest.dir
 233   # We will build objects and dependencies in a subdirectory because
 234   # it helps to detect inapplicable dependency modes.  For instance
 235   # both Tru64's cc and ICC support -MD to output dependencies as a
 236   # side effect of compilation, but ICC will put the dependencies in
 237   # the current directory while Tru64 will put them in the object
 238   # directory.
 239   mkdir sub
 240
 241   am_cv_$1_dependencies_compiler_type=none
 242   if test "$am_compiler_list" = ""; then
 243      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
 244   fi
 245   am__universal=false
 246   m4_case([$1], [CC],
 247     [case " $depcc " in #(
 248      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 249      esac],
 250     [CXX],
 251     [case " $depcc " in #(
 252      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 253      esac])
 254
 255   for depmode in $am_compiler_list; do
 256     # Setup a source with many dependencies, because some compilers
 257     # like to wrap large dependency lists on column 80 (with \), and
 258     # we should not choose a depcomp mode which is confused by this.
 259     #
 260     # We need to recreate these files for each test, as the compiler may
 261     # overwrite some of them when testing with obscure command lines.
 262     # This happens at least with the AIX C compiler.
 263     : > sub/conftest.c
 264     for i in 1 2 3 4 5 6; do
 265       echo '#include "conftst'$i'.h"' >> sub/conftest.c
 266       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
 267       # Solaris 10 /bin/sh.
 268       echo '/* dummy */' > sub/conftst$i.h
 269     done
 270     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 271
 272     # We check with '-c' and '-o' for the sake of the "dashmstdout"
 273     # mode.  It turns out that the SunPro C++ compiler does not properly
 274     # handle '-M -o', and we need to detect this.  Also, some Intel
 275     # versions had trouble with output in subdirs.
 276     am__obj=sub/conftest.${OBJEXT-o}
 277     am__minus_obj="-o $am__obj"
 278     case $depmode in
 279     gcc)
 280       # This depmode causes a compiler race in universal mode.
 281       test "$am__universal" = false || continue
 282       ;;
 283     nosideeffect)
 284       # After this tag, mechanisms are not by side-effect, so they'll
 285       # only be used when explicitly requested.
 286       if test "x$enable_dependency_tracking" = xyes; then
 287         continue
 288       else
 289         break
 290       fi
 291       ;;
 292     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 293       # This compiler won't grok '-c -o', but also, the minuso test has
 294       # not run yet.  These depmodes are late enough in the game, and
 295       # so weak that their functioning should not be impacted.
 296       am__obj=conftest.${OBJEXT-o}
 297       am__minus_obj=
 298       ;;
 299     none) break ;;
 300     esac
 301     if depmode=$depmode \
 302        source=sub/conftest.c object=$am__obj \
 303        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 304        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 305          >/dev/null 2>conftest.err &&
 306        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 307        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 308        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 309        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 310       # icc doesn't choke on unknown options, it will just issue warnings
 311       # or remarks (even with -Werror).  So we grep stderr for any message
 312       # that says an option was ignored or not supported.
 313       # When given -MP, icc 7.0 and 7.1 complain thusly:
 314       #   icc: Command line warning: ignoring option '-M'; no argument required
 315       # The diagnosis changed in icc 8.0:
 316       #   icc: Command line remark: option '-MP' not supported
 317       if (grep 'ignoring option' conftest.err ||
 318           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 319         am_cv_$1_dependencies_compiler_type=$depmode
 320         break
 321       fi
 322     fi
 323   done
 324
 325   cd ..
 326   rm -rf conftest.dir
 327 else
 328   am_cv_$1_dependencies_compiler_type=none
 329 fi
 330 ])
 331 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 332 AM_CONDITIONAL([am__fastdep$1], [
 333   test "x$enable_dependency_tracking" != xno \
 334   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 335 ])
 336
 337
 338 # AM_SET_DEPDIR
 339 # -------------
 340 # Choose a directory name for dependency files.
 341 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 342 AC_DEFUN([AM_SET_DEPDIR],
 343 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 344 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 345 ])
 346
 347
 348 # AM_DEP_TRACK
 349 # ------------
 350 AC_DEFUN([AM_DEP_TRACK],
 351 [AC_ARG_ENABLE([dependency-tracking], [dnl
 352 AS_HELP_STRING(
 353   [--enable-dependency-tracking],
 354   [do not reject slow dependency extractors])
 355 AS_HELP_STRING(
 356   [--disable-dependency-tracking],
 357   [speeds up one-time build])])
 358 if test "x$enable_dependency_tracking" != xno; then
 359   am_depcomp="$ac_aux_dir/depcomp"
 360   AMDEPBACKSLASH='\'
 361   am__nodep='_no'
 362 fi
 363 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 364 AC_SUBST([AMDEPBACKSLASH])dnl
 365 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 366 AC_SUBST([am__nodep])dnl
 367 _AM_SUBST_NOTMAKE([am__nodep])dnl
 368 ])
 369
 370 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 371
 372 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 373 #
 374 # This file is free software; the Free Software Foundation
 375 # gives unlimited permission to copy and/or distribute it,
 376 # with or without modifications, as long as this notice is preserved.
 377
 378 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 379 # ------------------------------
 380 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 381 [{
 382   # Older Autoconf quotes --file arguments for eval, but not when files
 383   # are listed without --file.  Let's play safe and only enable the eval
 384   # if we detect the quoting.
 385   # TODO: see whether this extra hack can be removed once we start
 386   # requiring Autoconf 2.70 or later.
 387   AS_CASE([$CONFIG_FILES],
 388           [*\'*], [eval set x "$CONFIG_FILES"],
 389           [*], [set x $CONFIG_FILES])
 390   shift
 391   # Used to flag and report bootstrapping failures.
 392   am_rc=0
 393   for am_mf
 394   do
 395     # Strip MF so we end up with the name of the file.
 396     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
 397     # Check whether this is an Automake generated Makefile which includes
 398     # dependency-tracking related rules and includes.
 399     # Grep'ing the whole file directly is not great: AIX grep has a line
 400     # limit of 2048, but all sed's we know have understand at least 4000.
 401     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
 402       || continue
 403     am_dirpart=`AS_DIRNAME(["$am_mf"])`
 404     am_filepart=`AS_BASENAME(["$am_mf"])`
 405     AM_RUN_LOG([cd "$am_dirpart" \
 406       && sed -e '/# am--include-marker/d' "$am_filepart" \
 407         | $MAKE -f - am--depfiles]) || am_rc=$?
 408   done
 409   if test $am_rc -ne 0; then
 410     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
 411     for automatic dependency tracking.  If GNU make was not used, consider
 412     re-running the configure script with MAKE="gmake" (or whatever is
 413     necessary).  You can also try re-running configure with the
 414     '--disable-dependency-tracking' option to at least be able to build
 415     the package (albeit without support for automatic dependency tracking).])
 416   fi
 417   AS_UNSET([am_dirpart])
 418   AS_UNSET([am_filepart])
 419   AS_UNSET([am_mf])
 420   AS_UNSET([am_rc])
 421   rm -f conftest-deps.mk
 422 }
 423 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 424
 425
 426 # AM_OUTPUT_DEPENDENCY_COMMANDS
 427 # -----------------------------
 428 # This macro should only be invoked once -- use via AC_REQUIRE.
 429 #
 430 # This code is only required when automatic dependency tracking is enabled.
 431 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
 432 # order to bootstrap the dependency handling code.
 433 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 434 [AC_CONFIG_COMMANDS([depfiles],
 435      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
 436      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
 437
 438 # Do all the work for Automake.                             -*- Autoconf -*-
 439
 440 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 441 #
 442 # This file is free software; the Free Software Foundation
 443 # gives unlimited permission to copy and/or distribute it,
 444 # with or without modifications, as long as this notice is preserved.
 445
 446 # This macro actually does too much.  Some checks are only needed if
 447 # your package does certain things.  But this isn't really a big deal.
 448
 449 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 450 m4_define([AC_PROG_CC],
 451 m4_defn([AC_PROG_CC])
 452 [_AM_PROG_CC_C_O
 453 ])
 454
 455 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 456 # AM_INIT_AUTOMAKE([OPTIONS])
 457 # -----------------------------------------------
 458 # The call with PACKAGE and VERSION arguments is the old style
 459 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 460 # and VERSION should now be passed to AC_INIT and removed from
 461 # the call to AM_INIT_AUTOMAKE.
 462 # We support both call styles for the transition.  After
 463 # the next Automake release, Autoconf can make the AC_INIT
 464 # arguments mandatory, and then we can depend on a new Autoconf
 465 # release and drop the old call support.
 466 AC_DEFUN([AM_INIT_AUTOMAKE],
 467 [AC_PREREQ([2.65])dnl
 468 m4_ifdef([_$0_ALREADY_INIT],
 469   [m4_fatal([$0 expanded multiple times
 470 ]m4_defn([_$0_ALREADY_INIT]))],
 471   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
 472 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 473 dnl the ones we care about.
 474 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 475 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 476 AC_REQUIRE([AC_PROG_INSTALL])dnl
 477 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 478   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 479   # is not polluted with repeated "-I."
 480   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 481   # test to see if srcdir already configured
 482   if test -f $srcdir/config.status; then
 483     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 484   fi
 485 fi
 486
 487 # test whether we have cygpath
 488 if test -z "$CYGPATH_W"; then
 489   if (cygpath --version) >/dev/null 2>/dev/null; then
 490     CYGPATH_W='cygpath -w'
 491   else
 492     CYGPATH_W=echo
 493   fi
 494 fi
 495 AC_SUBST([CYGPATH_W])
 496
 497 # Define the identity of the package.
 498 dnl Distinguish between old-style and new-style calls.
 499 m4_ifval([$2],
 500 [AC_DIAGNOSE([obsolete],
 501              [$0: two- and three-arguments forms are deprecated.])
 502 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 503  AC_SUBST([PACKAGE], [$1])dnl
 504  AC_SUBST([VERSION], [$2])],
 505 [_AM_SET_OPTIONS([$1])dnl
 506 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 507 m4_if(
 508   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
 509   [ok:ok],,
 510   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 511  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 512  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 513
 514 _AM_IF_OPTION([no-define],,
 515 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 516  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 517
 518 # Some tools Automake needs.
 519 AC_REQUIRE([AM_SANITY_CHECK])dnl
 520 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 521 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 522 AM_MISSING_PROG([AUTOCONF], [autoconf])
 523 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 524 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 525 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 526 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 527 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 528 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 529 # For better backward compatibility.  To be removed once Automake 1.9.x
 530 # dies out for good.  For more background, see:
 531 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 532 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 533 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 534 # We need awk for the "check" target (and possibly the TAP driver).  The
 535 # system "awk" is bad on some platforms.
 536 AC_REQUIRE([AC_PROG_AWK])dnl
 537 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 538 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 539 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 540               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 541                              [_AM_PROG_TAR([v7])])])
 542 _AM_IF_OPTION([no-dependencies],,
 543 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 544                   [_AM_DEPENDENCIES([CC])],
 545                   [m4_define([AC_PROG_CC],
 546                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 547 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 548                   [_AM_DEPENDENCIES([CXX])],
 549                   [m4_define([AC_PROG_CXX],
 550                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 551 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 552                   [_AM_DEPENDENCIES([OBJC])],
 553                   [m4_define([AC_PROG_OBJC],
 554                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 555 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 556                   [_AM_DEPENDENCIES([OBJCXX])],
 557                   [m4_define([AC_PROG_OBJCXX],
 558                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 559 ])
 560 # Variables for tags utilities; see am/tags.am
 561 if test -z "$CTAGS"; then
 562   CTAGS=ctags
 563 fi
 564 AC_SUBST([CTAGS])
 565 if test -z "$ETAGS"; then
 566   ETAGS=etags
 567 fi
 568 AC_SUBST([ETAGS])
 569 if test -z "$CSCOPE"; then
 570   CSCOPE=cscope
 571 fi
 572 AC_SUBST([CSCOPE])
 573
 574 AC_REQUIRE([AM_SILENT_RULES])dnl
 575 dnl The testsuite driver may need to know about EXEEXT, so add the
 576 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 577 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 578 AC_CONFIG_COMMANDS_PRE(dnl
 579 [m4_provide_if([_AM_COMPILER_EXEEXT],
 580   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 581
 582 # POSIX will say in a future version that running "rm -f" with no argument
 583 # is OK; and we want to be able to make that assumption in our Makefile
 584 # recipes.  So use an aggressive probe to check that the usage we want is
 585 # actually supported "in the wild" to an acceptable degree.
 586 # See automake bug#10828.
 587 # To make any issue more visible, cause the running configure to be aborted
 588 # by default if the 'rm' program in use doesn't match our expectations; the
 589 # user can still override this though.
 590 if rm -f && rm -fr && rm -rf; then : OK; else
 591   cat >&2 <<'END'
 592 Oops!
 593
 594 Your 'rm' program seems unable to run without file operands specified
 595 on the command line, even when the '-f' option is present.  This is contrary
 596 to the behaviour of most rm programs out there, and not conforming with
 597 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 598
 599 Please tell bug-automake@gnu.org about your system, including the value
 600 of your $PATH and any error possibly output before this message.  This
 601 can help us improve future automake versions.
 602
 603 END
 604   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 605     echo 'Configuration will proceed anyway, since you have set the' >&2
 606     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 607     echo >&2
 608   else
 609     cat >&2 <<'END'
 610 Aborting the configuration process, to ensure you take notice of the issue.
 611
 612 You can download and install GNU coreutils to get an 'rm' implementation
 613 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 614
 615 If you want to complete the configuration process using your problematic
 616 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 617 to "yes", and re-run configure.
 618
 619 END
 620     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 621   fi
 622 fi
 623 dnl The trailing newline in this macro's definition is deliberate, for
 624 dnl backward compatibility and to allow trailing 'dnl'-style comments
 625 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 626 ])
 627
 628 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 629 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 630 dnl mangled by Autoconf and run in a shell conditional statement.
 631 m4_define([_AC_COMPILER_EXEEXT],
 632 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 633
 634 # When config.status generates a header, we must update the stamp-h file.
 635 # This file resides in the same directory as the config header
 636 # that is generated.  The stamp files are numbered to have different names.
 637
 638 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 639 # loop where config.status creates the headers, so we can generate
 640 # our stamp files there.
 641 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 642 [# Compute $1's index in $config_headers.
 643 _am_arg=$1
 644 _am_stamp_count=1
 645 for _am_header in $config_headers :; do
 646   case $_am_header in
 647     $_am_arg | $_am_arg:* )
 648       break ;;
 649     * )
 650       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 651   esac
 652 done
 653 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 654
 655 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 656 #
 657 # This file is free software; the Free Software Foundation
 658 # gives unlimited permission to copy and/or distribute it,
 659 # with or without modifications, as long as this notice is preserved.
 660
 661 # AM_PROG_INSTALL_SH
 662 # ------------------
 663 # Define $install_sh.
 664 AC_DEFUN([AM_PROG_INSTALL_SH],
 665 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 666 if test x"${install_sh+set}" != xset; then
 667   case $am_aux_dir in
 668   *\ * | *\     *)
 669     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 670   *)
 671     install_sh="\${SHELL} $am_aux_dir/install-sh"
 672   esac
 673 fi
 674 AC_SUBST([install_sh])])
 675
 676 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
 677 #
 678 # This file is free software; the Free Software Foundation
 679 # gives unlimited permission to copy and/or distribute it,
 680 # with or without modifications, as long as this notice is preserved.
 681
 682 # Check whether the underlying file-system supports filenames
 683 # with a leading dot.  For instance MS-DOS doesn't.
 684 AC_DEFUN([AM_SET_LEADING_DOT],
 685 [rm -rf .tst 2>/dev/null
 686 mkdir .tst 2>/dev/null
 687 if test -d .tst; then
 688   am__leading_dot=.
 689 else
 690   am__leading_dot=_
 691 fi
 692 rmdir .tst 2>/dev/null
 693 AC_SUBST([am__leading_dot])])
 694
 695 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 696 # From Jim Meyering
 697
 698 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 699 #
 700 # This file is free software; the Free Software Foundation
 701 # gives unlimited permission to copy and/or distribute it,
 702 # with or without modifications, as long as this notice is preserved.
 703
 704 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 705 # ----------------------------------
 706 # Control maintainer-specific portions of Makefiles.
 707 # Default is to disable them, unless 'enable' is passed literally.
 708 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 709 # can override the default with the --enable/--disable switch.
 710 AC_DEFUN([AM_MAINTAINER_MODE],
 711 [m4_case(m4_default([$1], [disable]),
 712        [enable], [m4_define([am_maintainer_other], [disable])],
 713        [disable], [m4_define([am_maintainer_other], [enable])],
 714        [m4_define([am_maintainer_other], [enable])
 715         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 716 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 717   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 718   AC_ARG_ENABLE([maintainer-mode],
 719     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 720       am_maintainer_other[ make rules and dependencies not useful
 721       (and sometimes confusing) to the casual installer])],
 722     [USE_MAINTAINER_MODE=$enableval],
 723     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 724   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 725   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 726   MAINT=$MAINTAINER_MODE_TRUE
 727   AC_SUBST([MAINT])dnl
 728 ]
 729 )
 730
 731 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 732
 733 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 734 #
 735 # This file is free software; the Free Software Foundation
 736 # gives unlimited permission to copy and/or distribute it,
 737 # with or without modifications, as long as this notice is preserved.
 738
 739 # AM_MAKE_INCLUDE()
 740 # -----------------
 741 # Check whether make has an 'include' directive that can support all
 742 # the idioms we need for our automatic dependency tracking code.
 743 AC_DEFUN([AM_MAKE_INCLUDE],
 744 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
 745 cat > confinc.mk << 'END'
 746 am__doit:
 747         @echo this is the am__doit target >confinc.out
 748 .PHONY: am__doit
 749 END
 750 am__include="#"
 751 am__quote=
 752 # BSD make does it like this.
 753 echo '.include "confinc.mk" # ignored' > confmf.BSD
 754 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 755 echo 'include confinc.mk # ignored' > confmf.GNU
 756 _am_result=no
 757 for s in GNU BSD; do
 758   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
 759   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
 760       ['0:this is the am__doit target'],
 761       [AS_CASE([$s],
 762           [BSD], [am__include='.include' am__quote='"'],
 763           [am__include='include' am__quote=''])])
 764   if test "$am__include" != "#"; then
 765     _am_result="yes ($s style)"
 766     break
 767   fi
 768 done
 769 rm -f confinc.* confmf.*
 770 AC_MSG_RESULT([${_am_result}])
 771 AC_SUBST([am__include])])
 772 AC_SUBST([am__quote])])
 773
 774 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 775
 776 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
 777 #
 778 # This file is free software; the Free Software Foundation
 779 # gives unlimited permission to copy and/or distribute it,
 780 # with or without modifications, as long as this notice is preserved.
 781
 782 # AM_MISSING_PROG(NAME, PROGRAM)
 783 # ------------------------------
 784 AC_DEFUN([AM_MISSING_PROG],
 785 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 786 $1=${$1-"${am_missing_run}$2"}
 787 AC_SUBST($1)])
 788
 789 # AM_MISSING_HAS_RUN
 790 # ------------------
 791 # Define MISSING if not defined so far and test if it is modern enough.
 792 # If it is, set am_missing_run to use it, otherwise, to nothing.
 793 AC_DEFUN([AM_MISSING_HAS_RUN],
 794 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 795 AC_REQUIRE_AUX_FILE([missing])dnl
 796 if test x"${MISSING+set}" != xset; then
 797   MISSING="\${SHELL} '$am_aux_dir/missing'"
 798 fi
 799 # Use eval to expand $SHELL
 800 if eval "$MISSING --is-lightweight"; then
 801   am_missing_run="$MISSING "
 802 else
 803   am_missing_run=
 804   AC_MSG_WARN(['missing' script is too old or missing])
 805 fi
 806 ])
 807
 808 # Helper functions for option handling.                     -*- Autoconf -*-
 809
 810 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 811 #
 812 # This file is free software; the Free Software Foundation
 813 # gives unlimited permission to copy and/or distribute it,
 814 # with or without modifications, as long as this notice is preserved.
 815
 816 # _AM_MANGLE_OPTION(NAME)
 817 # -----------------------
 818 AC_DEFUN([_AM_MANGLE_OPTION],
 819 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 820
 821 # _AM_SET_OPTION(NAME)
 822 # --------------------
 823 # Set option NAME.  Presently that only means defining a flag for this option.
 824 AC_DEFUN([_AM_SET_OPTION],
 825 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 826
 827 # _AM_SET_OPTIONS(OPTIONS)
 828 # ------------------------
 829 # OPTIONS is a space-separated list of Automake options.
 830 AC_DEFUN([_AM_SET_OPTIONS],
 831 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 832
 833 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 834 # -------------------------------------------
 835 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 836 AC_DEFUN([_AM_IF_OPTION],
 837 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 838
 839 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 840 #
 841 # This file is free software; the Free Software Foundation
 842 # gives unlimited permission to copy and/or distribute it,
 843 # with or without modifications, as long as this notice is preserved.
 844
 845 # _AM_PROG_CC_C_O
 846 # ---------------
 847 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 848 # to automatically call this.
 849 AC_DEFUN([_AM_PROG_CC_C_O],
 850 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 851 AC_REQUIRE_AUX_FILE([compile])dnl
 852 AC_LANG_PUSH([C])dnl
 853 AC_CACHE_CHECK(
 854   [whether $CC understands -c and -o together],
 855   [am_cv_prog_cc_c_o],
 856   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 857   # Make sure it works both with $CC and with simple cc.
 858   # Following AC_PROG_CC_C_O, we do the test twice because some
 859   # compilers refuse to overwrite an existing .o file with -o,
 860   # though they will create one.
 861   am_cv_prog_cc_c_o=yes
 862   for am_i in 1 2; do
 863     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 864          && test -f conftest2.$ac_objext; then
 865       : OK
 866     else
 867       am_cv_prog_cc_c_o=no
 868       break
 869     fi
 870   done
 871   rm -f core conftest*
 872   unset am_i])
 873 if test "$am_cv_prog_cc_c_o" != yes; then
 874    # Losing compiler, so override with the script.
 875    # FIXME: It is wrong to rewrite CC.
 876    # But if we don't then we get into trouble of one sort or another.
 877    # A longer-term fix would be to have automake use am__CC in this case,
 878    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 879    CC="$am_aux_dir/compile $CC"
 880 fi
 881 AC_LANG_POP([C])])
 882
 883 # For backward compatibility.
 884 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 885
 886 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 887 #
 888 # This file is free software; the Free Software Foundation
 889 # gives unlimited permission to copy and/or distribute it,
 890 # with or without modifications, as long as this notice is preserved.
 891
 892 # AM_RUN_LOG(COMMAND)
 893 # -------------------
 894 # Run COMMAND, save the exit status in ac_status, and log it.
 895 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 896 AC_DEFUN([AM_RUN_LOG],
 897 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 898    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 899    ac_status=$?
 900    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 901    (exit $ac_status); }])
 902
 903 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 904
 905 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
 906 #
 907 # This file is free software; the Free Software Foundation
 908 # gives unlimited permission to copy and/or distribute it,
 909 # with or without modifications, as long as this notice is preserved.
 910
 911 # AM_SANITY_CHECK
 912 # ---------------
 913 AC_DEFUN([AM_SANITY_CHECK],
 914 [AC_MSG_CHECKING([whether build environment is sane])
 915 # Reject unsafe characters in $srcdir or the absolute working directory
 916 # name.  Accept space and tab only in the latter.
 917 am_lf='
 918 '
 919 case `pwd` in
 920   *[[\\\"\#\$\&\'\`$am_lf]]*)
 921     AC_MSG_ERROR([unsafe absolute working directory name]);;
 922 esac
 923 case $srcdir in
 924   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 925     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 926 esac
 927
 928 # Do 'set' in a subshell so we don't clobber the current shell's
 929 # arguments.  Must try -L first in case configure is actually a
 930 # symlink; some systems play weird games with the mod time of symlinks
 931 # (eg FreeBSD returns the mod time of the symlink's containing
 932 # directory).
 933 if (
 934    am_has_slept=no
 935    for am_try in 1 2; do
 936      echo "timestamp, slept: $am_has_slept" > conftest.file
 937      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 938      if test "$[*]" = "X"; then
 939         # -L didn't work.
 940         set X `ls -t "$srcdir/configure" conftest.file`
 941      fi
 942      if test "$[*]" != "X $srcdir/configure conftest.file" \
 943         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 944
 945         # If neither matched, then we have a broken ls.  This can happen
 946         # if, for instance, CONFIG_SHELL is bash and it inherits a
 947         # broken ls alias from the environment.  This has actually
 948         # happened.  Such a system could not be considered "sane".
 949         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 950   alias in your environment])
 951      fi
 952      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 953        break
 954      fi
 955      # Just in case.
 956      sleep 1
 957      am_has_slept=yes
 958    done
 959    test "$[2]" = conftest.file
 960    )
 961 then
 962    # Ok.
 963    :
 964 else
 965    AC_MSG_ERROR([newly created file is older than distributed files!
 966 Check your system clock])
 967 fi
 968 AC_MSG_RESULT([yes])
 969 # If we didn't sleep, we still need to ensure time stamps of config.status and
 970 # generated files are strictly newer.
 971 am_sleep_pid=
 972 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 973   ( sleep 1 ) &
 974   am_sleep_pid=$!
 975 fi
 976 AC_CONFIG_COMMANDS_PRE(
 977   [AC_MSG_CHECKING([that generated files are newer than configure])
 978    if test -n "$am_sleep_pid"; then
 979      # Hide warnings about reused PIDs.
 980      wait $am_sleep_pid 2>/dev/null
 981    fi
 982    AC_MSG_RESULT([done])])
 983 rm -f conftest.file
 984 ])
 985
 986 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
 987 #
 988 # This file is free software; the Free Software Foundation
 989 # gives unlimited permission to copy and/or distribute it,
 990 # with or without modifications, as long as this notice is preserved.
 991
 992 # AM_SILENT_RULES([DEFAULT])
 993 # --------------------------
 994 # Enable less verbose build rules; with the default set to DEFAULT
 995 # ("yes" being less verbose, "no" or empty being verbose).
 996 AC_DEFUN([AM_SILENT_RULES],
 997 [AC_ARG_ENABLE([silent-rules], [dnl
 998 AS_HELP_STRING(
 999   [--enable-silent-rules],
1000   [less verbose build output (undo: "make V=1")])
1001 AS_HELP_STRING(
1002   [--disable-silent-rules],
1003   [verbose build output (undo: "make V=0")])dnl
1004 ])
1005 case $enable_silent_rules in @%:@ (((
1006   yes) AM_DEFAULT_VERBOSITY=0;;
1007    no) AM_DEFAULT_VERBOSITY=1;;
1008     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1009 esac
1010 dnl
1011 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1012 dnl do not support nested variable expansions.
1013 dnl See automake bug#9928 and bug#10237.
1014 am_make=${MAKE-make}
1015 AC_CACHE_CHECK([whether $am_make supports nested variables],
1016    [am_cv_make_support_nested_variables],
1017    [if AS_ECHO([['TRUE=$(BAR$(V))
1018 BAR0=false
1019 BAR1=true
1020 V=1
1021 am__doit:
1022         @$(TRUE)
1023 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1024   am_cv_make_support_nested_variables=yes
1025 else
1026   am_cv_make_support_nested_variables=no
1027 fi])
1028 if test $am_cv_make_support_nested_variables = yes; then
1029   dnl Using '$V' instead of '$(V)' breaks IRIX make.
1030   AM_V='$(V)'
1031   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1032 else
1033   AM_V=$AM_DEFAULT_VERBOSITY
1034   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1035 fi
1036 AC_SUBST([AM_V])dnl
1037 AM_SUBST_NOTMAKE([AM_V])dnl
1038 AC_SUBST([AM_DEFAULT_V])dnl
1039 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1040 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1041 AM_BACKSLASH='\'
1042 AC_SUBST([AM_BACKSLASH])dnl
1043 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1044 ])
1045
1046 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1047 #
1048 # This file is free software; the Free Software Foundation
1049 # gives unlimited permission to copy and/or distribute it,
1050 # with or without modifications, as long as this notice is preserved.
1051
1052 # AM_PROG_INSTALL_STRIP
1053 # ---------------------
1054 # One issue with vendor 'install' (even GNU) is that you can't
1055 # specify the program used to strip binaries.  This is especially
1056 # annoying in cross-compiling environments, where the build's strip
1057 # is unlikely to handle the host's binaries.
1058 # Fortunately install-sh will honor a STRIPPROG variable, so we
1059 # always use install-sh in "make install-strip", and initialize
1060 # STRIPPROG with the value of the STRIP variable (set by the user).
1061 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1062 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1063 # Installed binaries are usually stripped using 'strip' when the user
1064 # run "make install-strip".  However 'strip' might not be the right
1065 # tool to use in cross-compilation environments, therefore Automake
1066 # will honor the 'STRIP' environment variable to overrule this program.
1067 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1068 if test "$cross_compiling" != no; then
1069   AC_CHECK_TOOL([STRIP], [strip], :)
1070 fi
1071 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1072 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1073
1074 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1075 #
1076 # This file is free software; the Free Software Foundation
1077 # gives unlimited permission to copy and/or distribute it,
1078 # with or without modifications, as long as this notice is preserved.
1079
1080 # _AM_SUBST_NOTMAKE(VARIABLE)
1081 # ---------------------------
1082 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1083 # This macro is traced by Automake.
1084 AC_DEFUN([_AM_SUBST_NOTMAKE])
1085
1086 # AM_SUBST_NOTMAKE(VARIABLE)
1087 # --------------------------
1088 # Public sister of _AM_SUBST_NOTMAKE.
1089 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1090
1091 # Check how to create a tarball.                            -*- Autoconf -*-
1092
1093 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1094 #
1095 # This file is free software; the Free Software Foundation
1096 # gives unlimited permission to copy and/or distribute it,
1097 # with or without modifications, as long as this notice is preserved.
1098
1099 # _AM_PROG_TAR(FORMAT)
1100 # --------------------
1101 # Check how to create a tarball in format FORMAT.
1102 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1103 #
1104 # Substitute a variable $(am__tar) that is a command
1105 # writing to stdout a FORMAT-tarball containing the directory
1106 # $tardir.
1107 #     tardir=directory && $(am__tar) > result.tar
1108 #
1109 # Substitute a variable $(am__untar) that extract such
1110 # a tarball read from stdin.
1111 #     $(am__untar) < result.tar
1112 #
1113 AC_DEFUN([_AM_PROG_TAR],
1114 [# Always define AMTAR for backward compatibility.  Yes, it's still used
1115 # in the wild :-(  We should find a proper way to deprecate it ...
1116 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1117
1118 # We'll loop over all known methods to create a tar archive until one works.
1119 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1120
1121 m4_if([$1], [v7],
1122   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1123
1124   [m4_case([$1],
1125     [ustar],
1126      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1127       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1128       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1129       # and bug#13588).
1130       am_max_uid=2097151 # 2^21 - 1
1131       am_max_gid=$am_max_uid
1132       # The $UID and $GID variables are not portable, so we need to resort
1133       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1134       # below are definitely unexpected, so allow the users to see them
1135       # (that is, avoid stderr redirection).
1136       am_uid=`id -u || echo unknown`
1137       am_gid=`id -g || echo unknown`
1138       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1139       if test $am_uid -le $am_max_uid; then
1140          AC_MSG_RESULT([yes])
1141       else
1142          AC_MSG_RESULT([no])
1143          _am_tools=none
1144       fi
1145       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1146       if test $am_gid -le $am_max_gid; then
1147          AC_MSG_RESULT([yes])
1148       else
1149         AC_MSG_RESULT([no])
1150         _am_tools=none
1151       fi],
1152
1153   [pax],
1154     [],
1155
1156   [m4_fatal([Unknown tar format])])
1157
1158   AC_MSG_CHECKING([how to create a $1 tar archive])
1159
1160   # Go ahead even if we have the value already cached.  We do so because we
1161   # need to set the values for the 'am__tar' and 'am__untar' variables.
1162   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1163
1164   for _am_tool in $_am_tools; do
1165     case $_am_tool in
1166     gnutar)
1167       for _am_tar in tar gnutar gtar; do
1168         AM_RUN_LOG([$_am_tar --version]) && break
1169       done
1170       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1171       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1172       am__untar="$_am_tar -xf -"
1173       ;;
1174     plaintar)
1175       # Must skip GNU tar: if it does not support --format= it doesn't create
1176       # ustar tarball either.
1177       (tar --version) >/dev/null 2>&1 && continue
1178       am__tar='tar chf - "$$tardir"'
1179       am__tar_='tar chf - "$tardir"'
1180       am__untar='tar xf -'
1181       ;;
1182     pax)
1183       am__tar='pax -L -x $1 -w "$$tardir"'
1184       am__tar_='pax -L -x $1 -w "$tardir"'
1185       am__untar='pax -r'
1186       ;;
1187     cpio)
1188       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1189       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1190       am__untar='cpio -i -H $1 -d'
1191       ;;
1192     none)
1193       am__tar=false
1194       am__tar_=false
1195       am__untar=false
1196       ;;
1197     esac
1198
1199     # If the value was cached, stop now.  We just wanted to have am__tar
1200     # and am__untar set.
1201     test -n "${am_cv_prog_tar_$1}" && break
1202
1203     # tar/untar a dummy directory, and stop if the command works.
1204     rm -rf conftest.dir
1205     mkdir conftest.dir
1206     echo GrepMe > conftest.dir/file
1207     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1208     rm -rf conftest.dir
1209     if test -s conftest.tar; then
1210       AM_RUN_LOG([$am__untar <conftest.tar])
1211       AM_RUN_LOG([cat conftest.dir/file])
1212       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1213     fi
1214   done
1215   rm -rf conftest.dir
1216
1217   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1218   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1219
1220 AC_SUBST([am__tar])
1221 AC_SUBST([am__untar])
1222 ]) # _AM_PROG_TAR
1223