libstdc++-v3/aclocal.m4

   1 # generated automatically by aclocal 1.9.5 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 # 2005  Free Software Foundation, Inc.
   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 # Copyright (C) 2002, 2003, 2005  Free Software Foundation, Inc.
  15 #
  16 # This file is free software; the Free Software Foundation
  17 # gives unlimited permission to copy and/or distribute it,
  18 # with or without modifications, as long as this notice is preserved.
  19
  20 # AM_AUTOMAKE_VERSION(VERSION)
  21 # ----------------------------
  22 # Automake X.Y traces this macro to ensure aclocal.m4 has been
  23 # generated from the m4 files accompanying Automake X.Y.
  24 AC_DEFUN([AM_AUTOMAKE_VERSION], [am__api_version="1.9"])
  25
  26 # AM_SET_CURRENT_AUTOMAKE_VERSION
  27 # -------------------------------
  28 # Call AM_AUTOMAKE_VERSION so it can be traced.
  29 # This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
  30 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  31          [AM_AUTOMAKE_VERSION([1.9.5])])
  32
  33 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  34
  35 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
  36 #
  37 # This file is free software; the Free Software Foundation
  38 # gives unlimited permission to copy and/or distribute it,
  39 # with or without modifications, as long as this notice is preserved.
  40
  41 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  42 # $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
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  44 #
  45 # Of course, Automake must honor this variable whenever it calls a
  46 # tool from the auxiliary directory.  The problem is that $srcdir (and
  47 # therefore $ac_aux_dir as well) can be either absolute or relative,
  48 # depending on how configure is run.  This is pretty annoying, since
  49 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  50 # source directory, any form will work fine, but in subdirectories a
  51 # relative path needs to be adjusted first.
  52 #
  53 # $ac_aux_dir/missing
  54 #    fails when called from a subdirectory if $ac_aux_dir is relative
  55 # $top_srcdir/$ac_aux_dir/missing
  56 #    fails if $ac_aux_dir is absolute,
  57 #    fails when called from a subdirectory in a VPATH build with
  58 #          a relative $ac_aux_dir
  59 #
  60 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  61 # are both prefixed by $srcdir.  In an in-source build this is usually
  62 # harmless because $srcdir is `.', but things will broke when you
  63 # start a VPATH build or use an absolute $srcdir.
  64 #
  65 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  66 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  67 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  68 # and then we would define $MISSING as
  69 #   MISSING="\${SHELL} $am_aux_dir/missing"
  70 # This will work as long as MISSING is not called from configure, because
  71 # unfortunately $(top_srcdir) has no meaning in configure.
  72 # However there are other variables, like CC, which are often used in
  73 # configure, and could therefore not use this "fixed" $ac_aux_dir.
  74 #
  75 # Another solution, used here, is to always expand $ac_aux_dir to an
  76 # absolute PATH.  The drawback is that using absolute paths prevent a
  77 # configured tree to be moved without reconfiguration.
  78
  79 AC_DEFUN([AM_AUX_DIR_EXPAND],
  80 [dnl Rely on autoconf to set up CDPATH properly.
  81 AC_PREREQ([2.50])dnl
  82 # expand $ac_aux_dir to an absolute path
  83 am_aux_dir=`cd $ac_aux_dir && pwd`
  84 ])
  85
  86 # AM_CONDITIONAL                                            -*- Autoconf -*-
  87
  88 # Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005
  89 # Free Software Foundation, Inc.
  90 #
  91 # This file is free software; the Free Software Foundation
  92 # gives unlimited permission to copy and/or distribute it,
  93 # with or without modifications, as long as this notice is preserved.
  94
  95 # serial 7
  96
  97 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  98 # -------------------------------------
  99 # Define a conditional.
 100 AC_DEFUN([AM_CONDITIONAL],
 101 [AC_PREREQ(2.52)dnl
 102  ifelse([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
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 106 if $2; then
 107   $1_TRUE=
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 114 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
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 116 Usually this means the macro was only invoked conditionally.]])
 117 fi])])
 118
 119 # Do all the work for Automake.                             -*- Autoconf -*-
 120
 121 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
 122 # Free Software Foundation, Inc.
 123 #
 124 # This file is free software; the Free Software Foundation
 125 # gives unlimited permission to copy and/or distribute it,
 126 # with or without modifications, as long as this notice is preserved.
 127
 128 # serial 12
 129
 130 # This macro actually does too much.  Some checks are only needed if
 131 # your package does certain things.  But this isn't really a big deal.
 132
 133 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 134 # AM_INIT_AUTOMAKE([OPTIONS])
 135 # -----------------------------------------------
 136 # The call with PACKAGE and VERSION arguments is the old style
 137 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 138 # and VERSION should now be passed to AC_INIT and removed from
 139 # the call to AM_INIT_AUTOMAKE.
 140 # We support both call styles for the transition.  After
 141 # the next Automake release, Autoconf can make the AC_INIT
 142 # arguments mandatory, and then we can depend on a new Autoconf
 143 # release and drop the old call support.
 144 AC_DEFUN([AM_INIT_AUTOMAKE],
 145 [AC_PREREQ([2.58])dnl
 146 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 147 dnl the ones we care about.
 148 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 149 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 150 AC_REQUIRE([AC_PROG_INSTALL])dnl
 151 # test to see if srcdir already configured
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 165 AC_SUBST([CYGPATH_W])
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 167 # Define the identity of the package.
 168 dnl Distinguish between old-style and new-style calls.
 169 m4_ifval([$2],
 170 [m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 171  AC_SUBST([PACKAGE], [$1])dnl
 172  AC_SUBST([VERSION], [$2])],
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 174  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
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 177 _AM_IF_OPTION([no-define],,
 178 [AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 179  AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
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 181 # Some tools Automake needs.
 182 AC_REQUIRE([AM_SANITY_CHECK])dnl
 183 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 184 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
 185 AM_MISSING_PROG(AUTOCONF, autoconf)
 186 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
 187 AM_MISSING_PROG(AUTOHEADER, autoheader)
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 189 AM_PROG_INSTALL_SH
 190 AM_PROG_INSTALL_STRIP
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 194 AC_REQUIRE([AC_PROG_AWK])dnl
 195 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 196 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
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 212
 213 # When config.status generates a header, we must update the stamp-h file.
 214 # This file resides in the same directory as the config header
 215 # that is generated.  The stamp files are numbered to have different names.
 216
 217 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 218 # loop where config.status creates the headers, so we can generate
 219 # our stamp files there.
 220 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
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 231 echo "timestamp for $1" >`AS_DIRNAME([$1])`/stamp-h[]$_am_stamp_count])
 232
 233 # AM_PROG_INSTALL_SH
 234 # ------------------
 235 # Define $install_sh.
 236
 237 # Copyright (C) 2001, 2003 Free Software Foundation, Inc.
 238
 239 # This program is free software; you can redistribute it and/or modify
 240 # it under the terms of the GNU General Public License as published by
 241 # the Free Software Foundation; either version 2, or (at your option)
 242 # any later version.
 243
 244 # This program is distributed in the hope that it will be useful,
 245 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 246 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 247 # GNU General Public License for more details.
 248
 249 # You should have received a copy of the GNU General Public License
 250 # along with this program; if not, write to the Free Software
 251 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 252 # 02111-1307, USA.
 253
 254 AC_DEFUN([AM_PROG_INSTALL_SH],
 255 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 256 install_sh=${install_sh-"$am_aux_dir/install-sh"}
 257 AC_SUBST(install_sh)])
 258
 259 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 260 # From Jim Meyering
 261
 262 # Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005
 263 # Free Software Foundation, Inc.
 264 #
 265 # This file is free software; the Free Software Foundation
 266 # gives unlimited permission to copy and/or distribute it,
 267 # with or without modifications, as long as this notice is preserved.
 268
 269 # serial 4
 270
 271 AC_DEFUN([AM_MAINTAINER_MODE],
 272 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 273   dnl maintainer-mode is disabled by default
 274   AC_ARG_ENABLE(maintainer-mode,
 275 [  --enable-maintainer-mode  enable make rules and dependencies not useful
 276                           (and sometimes confusing) to the casual installer],
 277       USE_MAINTAINER_MODE=$enableval,
 278       USE_MAINTAINER_MODE=no)
 279   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 280   AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
 281   MAINT=$MAINTAINER_MODE_TRUE
 282   AC_SUBST(MAINT)dnl
 283 ]
 284 )
 285
 286 AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
 287
 288 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 289
 290 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2005
 291 # Free Software Foundation, Inc.
 292 #
 293 # This file is free software; the Free Software Foundation
 294 # gives unlimited permission to copy and/or distribute it,
 295 # with or without modifications, as long as this notice is preserved.
 296
 297 # serial 4
 298
 299 # AM_MISSING_PROG(NAME, PROGRAM)
 300 # ------------------------------
 301 AC_DEFUN([AM_MISSING_PROG],
 302 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 303 $1=${$1-"${am_missing_run}$2"}
 304 AC_SUBST($1)])
 305
 306
 307 # AM_MISSING_HAS_RUN
 308 # ------------------
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 310 # If it does, set am_missing_run to use it, otherwise, to nothing.
 311 AC_DEFUN([AM_MISSING_HAS_RUN],
 312 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
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 314 # Use eval to expand $SHELL
 315 if eval "$MISSING --run true"; then
 316   am_missing_run="$MISSING --run "
 317 else
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 319   AC_MSG_WARN([`missing' script is too old or missing])
 320 fi
 321 ])
 322
 323 # Copyright (C) 2003, 2004, 2005  Free Software Foundation, Inc.
 324 #
 325 # This file is free software; the Free Software Foundation
 326 # gives unlimited permission to copy and/or distribute it,
 327 # with or without modifications, as long as this notice is preserved.
 328
 329 # AM_PROG_MKDIR_P
 330 # ---------------
 331 # Check whether `mkdir -p' is supported, fallback to mkinstalldirs otherwise.
 332 #
 333 # Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
 334 # created by `make install' are always world readable, even if the
 335 # installer happens to have an overly restrictive umask (e.g. 077).
 336 # This was a mistake.  There are at least two reasons why we must not
 337 # use `-m 0755':
 338 #   - it causes special bits like SGID to be ignored,
 339 #   - it may be too restrictive (some setups expect 775 directories).
 340 #
 341 # Do not use -m 0755 and let people choose whatever they expect by
 342 # setting umask.
 343 #
 344 # We cannot accept any implementation of `mkdir' that recognizes `-p'.
 345 # Some implementations (such as Solaris 8's) are not thread-safe: if a
 346 # parallel make tries to run `mkdir -p a/b' and `mkdir -p a/c'
 347 # concurrently, both version can detect that a/ is missing, but only
 348 # one can create it and the other will error out.  Consequently we
 349 # restrict ourselves to GNU make (using the --version option ensures
 350 # this.)
 351 AC_DEFUN([AM_PROG_MKDIR_P],
 352 [if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
 353   # We used to keeping the `.' as first argument, in order to
 354   # allow $(mkdir_p) to be used without argument.  As in
 355   #   $(mkdir_p) $(somedir)
 356   # where $(somedir) is conditionally defined.  However this is wrong
 357   # for two reasons:
 358   #  1. if the package is installed by a user who cannot write `.'
 359   #     make install will fail,
 360   #  2. the above comment should most certainly read
 361   #     $(mkdir_p) $(DESTDIR)$(somedir)
 362   #     so it does not work when $(somedir) is undefined and
 363   #     $(DESTDIR) is not.
 364   #  To support the latter case, we have to write
 365   #     test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
 366   #  so the `.' trick is pointless.
 367   mkdir_p='mkdir -p --'
 368 else
 369   # On NextStep and OpenStep, the `mkdir' command does not
 370   # recognize any option.  It will interpret all options as
 371   # directories to create, and then abort because `.' already
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 374   do
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 379     mkdir_p='$(mkinstalldirs)'
 380   else
 381     mkdir_p='$(install_sh) -d'
 382   fi
 383 fi
 384 AC_SUBST([mkdir_p])])
 385
 386 # Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005
 387 # Free Software Foundation, Inc.
 388 #
 389 # This file is free software; the Free Software Foundation
 390 # gives unlimited permission to copy and/or distribute it,
 391 # with or without modifications, as long as this notice is preserved.
 392
 393 # serial 5
 394
 395 # AM_ENABLE_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR])
 396 # ---------------------------------------------------
 397 # Add --enable-multilib to configure.
 398 AC_DEFUN([AM_ENABLE_MULTILIB],
 399 [# Default to --enable-multilib
 400 AC_ARG_ENABLE(multilib,
 401 [  --enable-multilib       build many library versions (default)],
 402 [case "$enableval" in
 403   yes) multilib=yes ;;
 404   no)  multilib=no ;;
 405   *)   AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
 406  esac],
 407               [multilib=yes])
 408
 409 # We may get other options which we leave undocumented:
 410 # --with-target-subdir, --with-multisrctop, --with-multisubdir
 411 # See config-ml.in if you want the gory details.
 412
 413 if test "$srcdir" = "."; then
 414   if test "$with_target_subdir" != "."; then
 415     multi_basedir="$srcdir/$with_multisrctop../$2"
 416   else
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 418   fi
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 421 fi
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 423
 424 AC_OUTPUT_COMMANDS([
 425 # Only add multilib support code if we just rebuilt the top-level
 426 # Makefile.
 427 case " $CONFIG_FILES " in
 428  *" ]m4_default([$1],Makefile)[ "*)
 429    ac_file=]m4_default([$1],Makefile)[ . ${multi_basedir}/config-ml.in
 430    ;;
 431 esac],
 432                    [
 433 srcdir="$srcdir"
 434 host="$host"
 435 target="$target"
 436 with_multisubdir="$with_multisubdir"
 437 with_multisrctop="$with_multisrctop"
 438 with_target_subdir="$with_target_subdir"
 439 ac_configure_args="${multilib_arg} ${ac_configure_args}"
 440 multi_basedir="$multi_basedir"
 441 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
 442 CC="$CC"])])dnl
 443
 444 # Helper functions for option handling.                     -*- Autoconf -*-
 445
 446 # Copyright (C) 2001, 2002, 2003, 2005  Free Software Foundation, Inc.
 447 #
 448 # This file is free software; the Free Software Foundation
 449 # gives unlimited permission to copy and/or distribute it,
 450 # with or without modifications, as long as this notice is preserved.
 451
 452 # serial 3
 453
 454 # _AM_MANGLE_OPTION(NAME)
 455 # -----------------------
 456 AC_DEFUN([_AM_MANGLE_OPTION],
 457 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 458
 459 # _AM_SET_OPTION(NAME)
 460 # ------------------------------
 461 # Set option NAME.  Presently that only means defining a flag for this option.
 462 AC_DEFUN([_AM_SET_OPTION],
 463 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
 464
 465 # _AM_SET_OPTIONS(OPTIONS)
 466 # ----------------------------------
 467 # OPTIONS is a space-separated list of Automake options.
 468 AC_DEFUN([_AM_SET_OPTIONS],
 469 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 470
 471 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 472 # -------------------------------------------
 473 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 474 AC_DEFUN([_AM_IF_OPTION],
 475 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 476
 477 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 478
 479 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
 480 # Free Software Foundation, Inc.
 481 #
 482 # This file is free software; the Free Software Foundation
 483 # gives unlimited permission to copy and/or distribute it,
 484 # with or without modifications, as long as this notice is preserved.
 485
 486 # serial 4
 487
 488 # AM_SANITY_CHECK
 489 # ---------------
 490 AC_DEFUN([AM_SANITY_CHECK],
 491 [AC_MSG_CHECKING([whether build environment is sane])
 492 # Just in case
 493 sleep 1
 494 echo timestamp > conftest.file
 495 # Do `set' in a subshell so we don't clobber the current shell's
 496 # arguments.  Must try -L first in case configure is actually a
 497 # symlink; some systems play weird games with the mod time of symlinks
 498 # (eg FreeBSD returns the mod time of the symlink's containing
 499 # directory).
 500 if (
 501    set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
 502    if test "$[*]" = "X"; then
 503       # -L didn't work.
 504       set X `ls -t $srcdir/configure conftest.file`
 505    fi
 506    rm -f conftest.file
 507    if test "$[*]" != "X $srcdir/configure conftest.file" \
 508       && test "$[*]" != "X conftest.file $srcdir/configure"; then
 509
 510       # If neither matched, then we have a broken ls.  This can happen
 511       # if, for instance, CONFIG_SHELL is bash and it inherits a
 512       # broken ls alias from the environment.  This has actually
 513       # happened.  Such a system could not be considered "sane".
 514       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 515 alias in your environment])
 516    fi
 517
 518    test "$[2]" = conftest.file
 519    )
 520 then
 521    # Ok.
 522    :
 523 else
 524    AC_MSG_ERROR([newly created file is older than distributed files!
 525 Check your system clock])
 526 fi
 527 AC_MSG_RESULT(yes)])
 528
 529 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
 530 #
 531 # This file is free software; the Free Software Foundation
 532 # gives unlimited permission to copy and/or distribute it,
 533 # with or without modifications, as long as this notice is preserved.
 534
 535 # AM_PROG_INSTALL_STRIP
 536 # ---------------------
 537 # One issue with vendor `install' (even GNU) is that you can't
 538 # specify the program used to strip binaries.  This is especially
 539 # annoying in cross-compiling environments, where the build's strip
 540 # is unlikely to handle the host's binaries.
 541 # Fortunately install-sh will honor a STRIPPROG variable, so we
 542 # always use install-sh in `make install-strip', and initialize
 543 # STRIPPROG with the value of the STRIP variable (set by the user).
 544 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 545 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 546 # Installed binaries are usually stripped using `strip' when the user
 547 # run `make install-strip'.  However `strip' might not be the right
 548 # tool to use in cross-compilation environments, therefore Automake
 549 # will honor the `STRIP' environment variable to overrule this program.
 550 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
 551 if test "$cross_compiling" != no; then
 552   AC_CHECK_TOOL([STRIP], [strip], :)
 553 fi
 554 INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
 555 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 556
 557 # Check how to create a tarball.                            -*- Autoconf -*-
 558
 559 # Copyright (C) 2004, 2005  Free Software Foundation, Inc.
 560 #
 561 # This file is free software; the Free Software Foundation
 562 # gives unlimited permission to copy and/or distribute it,
 563 # with or without modifications, as long as this notice is preserved.
 564
 565 # serial 2
 566
 567 # _AM_PROG_TAR(FORMAT)
 568 # --------------------
 569 # Check how to create a tarball in format FORMAT.
 570 # FORMAT should be one of `v7', `ustar', or `pax'.
 571 #
 572 # Substitute a variable $(am__tar) that is a command
 573 # writing to stdout a FORMAT-tarball containing the directory
 574 # $tardir.
 575 #     tardir=directory && $(am__tar) > result.tar
 576 #
 577 # Substitute a variable $(am__untar) that extract such
 578 # a tarball read from stdin.
 579 #     $(am__untar) < result.tar
 580 AC_DEFUN([_AM_PROG_TAR],
 581 [# Always define AMTAR for backward compatibility.
 582 AM_MISSING_PROG([AMTAR], [tar])
 583 m4_if([$1], [v7],
 584      [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
 585      [m4_case([$1], [ustar],, [pax],,
 586               [m4_fatal([Unknown tar format])])
 587 AC_MSG_CHECKING([how to create a $1 tar archive])
 588 # Loop over all known methods to create a tar archive until one works.
 589 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 590 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 591 # Do not fold the above two line into one, because Tru64 sh and
 592 # Solaris sh will not grok spaces in the rhs of `-'.
 593 for _am_tool in $_am_tools
 594 do
 595   case $_am_tool in
 596   gnutar)
 597     for _am_tar in tar gnutar gtar;
 598     do
 599       AM_RUN_LOG([$_am_tar --version]) && break
 600     done
 601     am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 602     am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 603     am__untar="$_am_tar -xf -"
 604     ;;
 605   plaintar)
 606     # Must skip GNU tar: if it does not support --format= it doesn't create
 607     # ustar tarball either.
 608     (tar --version) >/dev/null 2>&1 && continue
 609     am__tar='tar chf - "$$tardir"'
 610     am__tar_='tar chf - "$tardir"'
 611     am__untar='tar xf -'
 612     ;;
 613   pax)
 614     am__tar='pax -L -x $1 -w "$$tardir"'
 615     am__tar_='pax -L -x $1 -w "$tardir"'
 616     am__untar='pax -r'
 617     ;;
 618   cpio)
 619     am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 620     am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 621     am__untar='cpio -i -H $1 -d'
 622     ;;
 623   none)
 624     am__tar=false
 625     am__tar_=false
 626     am__untar=false
 627     ;;
 628   esac
 629
 630   # If the value was cached, stop now.  We just wanted to have am__tar
 631   # and am__untar set.
 632   test -n "${am_cv_prog_tar_$1}" && break
 633
 634   # tar/untar a dummy directory, and stop if the command works
 635   rm -rf conftest.dir
 636   mkdir conftest.dir
 637   echo GrepMe > conftest.dir/file
 638   AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 639   rm -rf conftest.dir
 640   if test -s conftest.tar; then
 641     AM_RUN_LOG([$am__untar <conftest.tar])
 642     grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 643   fi
 644 done
 645 rm -rf conftest.dir
 646
 647 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 648 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 649 AC_SUBST([am__tar])
 650 AC_SUBST([am__untar])
 651 ]) # _AM_PROG_TAR
 652
 653 m4_include([../config/lead-dot.m4])
 654 m4_include([../config/no-executables.m4])
 655 m4_include([../libtool.m4])
 656 m4_include([crossconfig.m4])
 657 m4_include([linkage.m4])
 658 m4_include([acinclude.m4])