libstdc++-v3/aclocal.m4

   1 # generated automatically by aclocal 1.9.6 -*- 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([1.9.6])])
  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
  43 # `$srcdir', `$srcdir/..', or `$srcdir/../..'.
  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])],
 103         [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 104 AC_SUBST([$1_TRUE])
 105 AC_SUBST([$1_FALSE])
 106 if $2; then
 107   $1_TRUE=
 108   $1_FALSE='#'
 109 else
 110   $1_TRUE='#'
 111   $1_FALSE=
 112 fi
 113 AC_CONFIG_COMMANDS_PRE(
 114 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 115   AC_MSG_ERROR([[conditional "$1" was never defined.
 116 Usually this means the macro was only invoked conditionally.]])
 117 fi])])
 118
 119 # Do all the work for Automake.                             -*- Autoconf -*-
 120
 121 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
 122 # Free Software Foundation, Inc.
 123 #
 124 # This file is free software; the Free Software Foundation
 125 # gives unlimited permission to copy and/or distribute it,
 126 # with or without modifications, as long as this notice is preserved.
 127
 128 # serial 12
 129
 130 # This macro actually does too much.  Some checks are only needed if
 131 # your package does certain things.  But this isn't really a big deal.
 132
 133 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 134 # AM_INIT_AUTOMAKE([OPTIONS])
 135 # -----------------------------------------------
 136 # The call with PACKAGE and VERSION arguments is the old style
 137 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 138 # and VERSION should now be passed to AC_INIT and removed from
 139 # the call to AM_INIT_AUTOMAKE.
 140 # We support both call styles for the transition.  After
 141 # the next Automake release, Autoconf can make the AC_INIT
 142 # arguments mandatory, and then we can depend on a new Autoconf
 143 # release and drop the old call support.
 144 AC_DEFUN([AM_INIT_AUTOMAKE],
 145 [AC_PREREQ([2.58])dnl
 146 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 147 dnl the ones we care about.
 148 m4_pattern_allow([^AM_[A-Z]+FLAGS$])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
 152 if test "`cd $srcdir && pwd`" != "`pwd`" &&
 153    test -f $srcdir/config.status; then
 154   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 155 fi
 156
 157 # test whether we have cygpath
 158 if test -z "$CYGPATH_W"; then
 159   if (cygpath --version) >/dev/null 2>/dev/null; then
 160     CYGPATH_W='cygpath -w'
 161   else
 162     CYGPATH_W=echo
 163   fi
 164 fi
 165 AC_SUBST([CYGPATH_W])
 166
 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])],
 173 [_AM_SET_OPTIONS([$1])dnl
 174  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 175  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 176
 177 _AM_IF_OPTION([no-define],,
 178 [AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 179  AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
 180
 181 # Some tools Automake needs.
 182 AC_REQUIRE([AM_SANITY_CHECK])dnl
 183 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 184 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
 185 AM_MISSING_PROG(AUTOCONF, autoconf)
 186 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
 187 AM_MISSING_PROG(AUTOHEADER, autoheader)
 188 AM_MISSING_PROG(MAKEINFO, makeinfo)
 189 AM_PROG_INSTALL_SH
 190 AM_PROG_INSTALL_STRIP
 191 AC_REQUIRE([AM_PROG_MKDIR_P])dnl
 192 # We need awk for the "check" target.  The system "awk" is bad on
 193 # some platforms.
 194 AC_REQUIRE([AC_PROG_AWK])dnl
 195 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 196 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 197 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 198               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 199                              [_AM_PROG_TAR([v7])])])
 200 _AM_IF_OPTION([no-dependencies],,
 201 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 202                   [_AM_DEPENDENCIES(CC)],
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 205 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 206                   [_AM_DEPENDENCIES(CXX)],
 207                   [define([AC_PROG_CXX],
 208                           defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
 209 ])
 210 ])
 211
 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],
 221 [# Compute $1's index in $config_headers.
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 223 for _am_header in $config_headers :; do
 224   case $_am_header in
 225     $1 | $1:* )
 226       break ;;
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 229   esac
 230 done
 231 echo "timestamp for $1" >`AS_DIRNAME([$1])`/stamp-h[]$_am_stamp_count])
 232
 233 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
 234 #
 235 # This file is free software; the Free Software Foundation
 236 # gives unlimited permission to copy and/or distribute it,
 237 # with or without modifications, as long as this notice is preserved.
 238
 239 # AM_PROG_INSTALL_SH
 240 # ------------------
 241 # Define $install_sh.
 242 AC_DEFUN([AM_PROG_INSTALL_SH],
 243 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 244 install_sh=${install_sh-"$am_aux_dir/install-sh"}
 245 AC_SUBST(install_sh)])
 246
 247 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 248 # From Jim Meyering
 249
 250 # Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005
 251 # Free Software Foundation, Inc.
 252 #
 253 # This file is free software; the Free Software Foundation
 254 # gives unlimited permission to copy and/or distribute it,
 255 # with or without modifications, as long as this notice is preserved.
 256
 257 # serial 4
 258
 259 AC_DEFUN([AM_MAINTAINER_MODE],
 260 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 261   dnl maintainer-mode is disabled by default
 262   AC_ARG_ENABLE(maintainer-mode,
 263 [  --enable-maintainer-mode  enable make rules and dependencies not useful
 264                           (and sometimes confusing) to the casual installer],
 265       USE_MAINTAINER_MODE=$enableval,
 266       USE_MAINTAINER_MODE=no)
 267   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 268   AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
 269   MAINT=$MAINTAINER_MODE_TRUE
 270   AC_SUBST(MAINT)dnl
 271 ]
 272 )
 273
 274 AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
 275
 276 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 277
 278 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2005
 279 # Free Software Foundation, Inc.
 280 #
 281 # This file is free software; the Free Software Foundation
 282 # gives unlimited permission to copy and/or distribute it,
 283 # with or without modifications, as long as this notice is preserved.
 284
 285 # serial 4
 286
 287 # AM_MISSING_PROG(NAME, PROGRAM)
 288 # ------------------------------
 289 AC_DEFUN([AM_MISSING_PROG],
 290 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 291 $1=${$1-"${am_missing_run}$2"}
 292 AC_SUBST($1)])
 293
 294
 295 # AM_MISSING_HAS_RUN
 296 # ------------------
 297 # Define MISSING if not defined so far and test if it supports --run.
 298 # If it does, set am_missing_run to use it, otherwise, to nothing.
 299 AC_DEFUN([AM_MISSING_HAS_RUN],
 300 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 301 test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
 302 # Use eval to expand $SHELL
 303 if eval "$MISSING --run true"; then
 304   am_missing_run="$MISSING --run "
 305 else
 306   am_missing_run=
 307   AC_MSG_WARN([`missing' script is too old or missing])
 308 fi
 309 ])
 310
 311 # Copyright (C) 2003, 2004, 2005  Free Software Foundation, Inc.
 312 #
 313 # This file is free software; the Free Software Foundation
 314 # gives unlimited permission to copy and/or distribute it,
 315 # with or without modifications, as long as this notice is preserved.
 316
 317 # AM_PROG_MKDIR_P
 318 # ---------------
 319 # Check whether `mkdir -p' is supported, fallback to mkinstalldirs otherwise.
 320 #
 321 # Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
 322 # created by `make install' are always world readable, even if the
 323 # installer happens to have an overly restrictive umask (e.g. 077).
 324 # This was a mistake.  There are at least two reasons why we must not
 325 # use `-m 0755':
 326 #   - it causes special bits like SGID to be ignored,
 327 #   - it may be too restrictive (some setups expect 775 directories).
 328 #
 329 # Do not use -m 0755 and let people choose whatever they expect by
 330 # setting umask.
 331 #
 332 # We cannot accept any implementation of `mkdir' that recognizes `-p'.
 333 # Some implementations (such as Solaris 8's) are not thread-safe: if a
 334 # parallel make tries to run `mkdir -p a/b' and `mkdir -p a/c'
 335 # concurrently, both version can detect that a/ is missing, but only
 336 # one can create it and the other will error out.  Consequently we
 337 # restrict ourselves to GNU make (using the --version option ensures
 338 # this.)
 339 AC_DEFUN([AM_PROG_MKDIR_P],
 340 [if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
 341   # We used to keeping the `.' as first argument, in order to
 342   # allow $(mkdir_p) to be used without argument.  As in
 343   #   $(mkdir_p) $(somedir)
 344   # where $(somedir) is conditionally defined.  However this is wrong
 345   # for two reasons:
 346   #  1. if the package is installed by a user who cannot write `.'
 347   #     make install will fail,
 348   #  2. the above comment should most certainly read
 349   #     $(mkdir_p) $(DESTDIR)$(somedir)
 350   #     so it does not work when $(somedir) is undefined and
 351   #     $(DESTDIR) is not.
 352   #  To support the latter case, we have to write
 353   #     test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
 354   #  so the `.' trick is pointless.
 355   mkdir_p='mkdir -p --'
 356 else
 357   # On NextStep and OpenStep, the `mkdir' command does not
 358   # recognize any option.  It will interpret all options as
 359   # directories to create, and then abort because `.' already
 360   # exists.
 361   for d in ./-p ./--version;
 362   do
 363     test -d $d && rmdir $d
 364   done
 365   # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
 366   if test -f "$ac_aux_dir/mkinstalldirs"; then
 367     mkdir_p='$(mkinstalldirs)'
 368   else
 369     mkdir_p='$(install_sh) -d'
 370   fi
 371 fi
 372 AC_SUBST([mkdir_p])])
 373
 374 # Helper functions for option handling.                     -*- Autoconf -*-
 375
 376 # Copyright (C) 2001, 2002, 2003, 2005  Free Software Foundation, Inc.
 377 #
 378 # This file is free software; the Free Software Foundation
 379 # gives unlimited permission to copy and/or distribute it,
 380 # with or without modifications, as long as this notice is preserved.
 381
 382 # serial 3
 383
 384 # _AM_MANGLE_OPTION(NAME)
 385 # -----------------------
 386 AC_DEFUN([_AM_MANGLE_OPTION],
 387 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 388
 389 # _AM_SET_OPTION(NAME)
 390 # ------------------------------
 391 # Set option NAME.  Presently that only means defining a flag for this option.
 392 AC_DEFUN([_AM_SET_OPTION],
 393 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
 394
 395 # _AM_SET_OPTIONS(OPTIONS)
 396 # ----------------------------------
 397 # OPTIONS is a space-separated list of Automake options.
 398 AC_DEFUN([_AM_SET_OPTIONS],
 399 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 400
 401 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 402 # -------------------------------------------
 403 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 404 AC_DEFUN([_AM_IF_OPTION],
 405 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 406
 407 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 408
 409 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
 410 # Free Software Foundation, Inc.
 411 #
 412 # This file is free software; the Free Software Foundation
 413 # gives unlimited permission to copy and/or distribute it,
 414 # with or without modifications, as long as this notice is preserved.
 415
 416 # serial 4
 417
 418 # AM_SANITY_CHECK
 419 # ---------------
 420 AC_DEFUN([AM_SANITY_CHECK],
 421 [AC_MSG_CHECKING([whether build environment is sane])
 422 # Just in case
 423 sleep 1
 424 echo timestamp > conftest.file
 425 # Do `set' in a subshell so we don't clobber the current shell's
 426 # arguments.  Must try -L first in case configure is actually a
 427 # symlink; some systems play weird games with the mod time of symlinks
 428 # (eg FreeBSD returns the mod time of the symlink's containing
 429 # directory).
 430 if (
 431    set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
 432    if test "$[*]" = "X"; then
 433       # -L didn't work.
 434       set X `ls -t $srcdir/configure conftest.file`
 435    fi
 436    rm -f conftest.file
 437    if test "$[*]" != "X $srcdir/configure conftest.file" \
 438       && test "$[*]" != "X conftest.file $srcdir/configure"; then
 439
 440       # If neither matched, then we have a broken ls.  This can happen
 441       # if, for instance, CONFIG_SHELL is bash and it inherits a
 442       # broken ls alias from the environment.  This has actually
 443       # happened.  Such a system could not be considered "sane".
 444       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 445 alias in your environment])
 446    fi
 447
 448    test "$[2]" = conftest.file
 449    )
 450 then
 451    # Ok.
 452    :
 453 else
 454    AC_MSG_ERROR([newly created file is older than distributed files!
 455 Check your system clock])
 456 fi
 457 AC_MSG_RESULT(yes)])
 458
 459 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
 460 #
 461 # This file is free software; the Free Software Foundation
 462 # gives unlimited permission to copy and/or distribute it,
 463 # with or without modifications, as long as this notice is preserved.
 464
 465 # AM_PROG_INSTALL_STRIP
 466 # ---------------------
 467 # One issue with vendor `install' (even GNU) is that you can't
 468 # specify the program used to strip binaries.  This is especially
 469 # annoying in cross-compiling environments, where the build's strip
 470 # is unlikely to handle the host's binaries.
 471 # Fortunately install-sh will honor a STRIPPROG variable, so we
 472 # always use install-sh in `make install-strip', and initialize
 473 # STRIPPROG with the value of the STRIP variable (set by the user).
 474 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 475 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 476 # Installed binaries are usually stripped using `strip' when the user
 477 # run `make install-strip'.  However `strip' might not be the right
 478 # tool to use in cross-compilation environments, therefore Automake
 479 # will honor the `STRIP' environment variable to overrule this program.
 480 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
 481 if test "$cross_compiling" != no; then
 482   AC_CHECK_TOOL([STRIP], [strip], :)
 483 fi
 484 INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
 485 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 486
 487 # Check how to create a tarball.                            -*- Autoconf -*-
 488
 489 # Copyright (C) 2004, 2005  Free Software Foundation, Inc.
 490 #
 491 # This file is free software; the Free Software Foundation
 492 # gives unlimited permission to copy and/or distribute it,
 493 # with or without modifications, as long as this notice is preserved.
 494
 495 # serial 2
 496
 497 # _AM_PROG_TAR(FORMAT)
 498 # --------------------
 499 # Check how to create a tarball in format FORMAT.
 500 # FORMAT should be one of `v7', `ustar', or `pax'.
 501 #
 502 # Substitute a variable $(am__tar) that is a command
 503 # writing to stdout a FORMAT-tarball containing the directory
 504 # $tardir.
 505 #     tardir=directory && $(am__tar) > result.tar
 506 #
 507 # Substitute a variable $(am__untar) that extract such
 508 # a tarball read from stdin.
 509 #     $(am__untar) < result.tar
 510 AC_DEFUN([_AM_PROG_TAR],
 511 [# Always define AMTAR for backward compatibility.
 512 AM_MISSING_PROG([AMTAR], [tar])
 513 m4_if([$1], [v7],
 514      [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
 515      [m4_case([$1], [ustar],, [pax],,
 516               [m4_fatal([Unknown tar format])])
 517 AC_MSG_CHECKING([how to create a $1 tar archive])
 518 # Loop over all known methods to create a tar archive until one works.
 519 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 520 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 521 # Do not fold the above two line into one, because Tru64 sh and
 522 # Solaris sh will not grok spaces in the rhs of `-'.
 523 for _am_tool in $_am_tools
 524 do
 525   case $_am_tool in
 526   gnutar)
 527     for _am_tar in tar gnutar gtar;
 528     do
 529       AM_RUN_LOG([$_am_tar --version]) && break
 530     done
 531     am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 532     am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 533     am__untar="$_am_tar -xf -"
 534     ;;
 535   plaintar)
 536     # Must skip GNU tar: if it does not support --format= it doesn't create
 537     # ustar tarball either.
 538     (tar --version) >/dev/null 2>&1 && continue
 539     am__tar='tar chf - "$$tardir"'
 540     am__tar_='tar chf - "$tardir"'
 541     am__untar='tar xf -'
 542     ;;
 543   pax)
 544     am__tar='pax -L -x $1 -w "$$tardir"'
 545     am__tar_='pax -L -x $1 -w "$tardir"'
 546     am__untar='pax -r'
 547     ;;
 548   cpio)
 549     am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 550     am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 551     am__untar='cpio -i -H $1 -d'
 552     ;;
 553   none)
 554     am__tar=false
 555     am__tar_=false
 556     am__untar=false
 557     ;;
 558   esac
 559
 560   # If the value was cached, stop now.  We just wanted to have am__tar
 561   # and am__untar set.
 562   test -n "${am_cv_prog_tar_$1}" && break
 563
 564   # tar/untar a dummy directory, and stop if the command works
 565   rm -rf conftest.dir
 566   mkdir conftest.dir
 567   echo GrepMe > conftest.dir/file
 568   AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 569   rm -rf conftest.dir
 570   if test -s conftest.tar; then
 571     AM_RUN_LOG([$am__untar <conftest.tar])
 572     grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 573   fi
 574 done
 575 rm -rf conftest.dir
 576
 577 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 578 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 579 AC_SUBST([am__tar])
 580 AC_SUBST([am__untar])
 581 ]) # _AM_PROG_TAR
 582
 583 m4_include([../config/enable.m4])
 584 m4_include([../config/lead-dot.m4])
 585 m4_include([../config/multi.m4])
 586 m4_include([../config/no-executables.m4])
 587 m4_include([../config/unwind_ipinfo.m4])
 588 m4_include([../libtool.m4])
 589 m4_include([crossconfig.m4])
 590 m4_include([linkage.m4])
 591 m4_include([acinclude.m4])