testsuite/aclocal.m4

   1 # generated automatically by aclocal 1.10.1 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 # 2005, 2006, 2007, 2008  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 m4_ifndef([AC_AUTOCONF_VERSION],
  15   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  16 m4_if(AC_AUTOCONF_VERSION, [2.61],,
  17 [m4_warning([this file was generated for autoconf 2.61.
  18 You have another version of autoconf.  It may work, but is not guaranteed to.
  19 If you have problems, you may need to regenerate the build system entirely.
  20 To do so, use the procedure documented by the package, typically `autoreconf'.])])
  21
  22 # Copyright (C) 2002, 2003, 2005, 2006, 2007  Free Software Foundation, Inc.
  23 #
  24 # This file is free software; the Free Software Foundation
  25 # gives unlimited permission to copy and/or distribute it,
  26 # with or without modifications, as long as this notice is preserved.
  27
  28 # AM_AUTOMAKE_VERSION(VERSION)
  29 # ----------------------------
  30 # Automake X.Y traces this macro to ensure aclocal.m4 has been
  31 # generated from the m4 files accompanying Automake X.Y.
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  33 AC_DEFUN([AM_AUTOMAKE_VERSION],
  34 [am__api_version='1.10'
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  41 # _AM_AUTOCONF_VERSION(VERSION)
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  48 # AM_SET_CURRENT_AUTOMAKE_VERSION
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  57
  58 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  59
  60 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
  61 #
  62 # This file is free software; the Free Software Foundation
  63 # gives unlimited permission to copy and/or distribute it,
  64 # with or without modifications, as long as this notice is preserved.
  65
  66 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  67 # $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
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  69 #
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  71 # tool from the auxiliary directory.  The problem is that $srcdir (and
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  75 # source directory, any form will work fine, but in subdirectories a
  76 # relative path needs to be adjusted first.
  77 #
  78 # $ac_aux_dir/missing
  79 #    fails when called from a subdirectory if $ac_aux_dir is relative
  80 # $top_srcdir/$ac_aux_dir/missing
  81 #    fails if $ac_aux_dir is absolute,
  82 #    fails when called from a subdirectory in a VPATH build with
  83 #          a relative $ac_aux_dir
  84 #
  85 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  86 # are both prefixed by $srcdir.  In an in-source build this is usually
  87 # harmless because $srcdir is `.', but things will broke when you
  88 # start a VPATH build or use an absolute $srcdir.
  89 #
  90 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  91 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  92 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  93 # and then we would define $MISSING as
  94 #   MISSING="\${SHELL} $am_aux_dir/missing"
  95 # This will work as long as MISSING is not called from configure, because
  96 # unfortunately $(top_srcdir) has no meaning in configure.
  97 # However there are other variables, like CC, which are often used in
  98 # configure, and could therefore not use this "fixed" $ac_aux_dir.
  99 #
 100 # Another solution, used here, is to always expand $ac_aux_dir to an
 101 # absolute PATH.  The drawback is that using absolute paths prevent a
 102 # configured tree to be moved without reconfiguration.
 103
 104 AC_DEFUN([AM_AUX_DIR_EXPAND],
 105 [dnl Rely on autoconf to set up CDPATH properly.
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 107 # expand $ac_aux_dir to an absolute path
 108 am_aux_dir=`cd $ac_aux_dir && pwd`
 109 ])
 110
 111 # AM_CONDITIONAL                                            -*- Autoconf -*-
 112
 113 # Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006
 114 # Free Software Foundation, Inc.
 115 #
 116 # This file is free software; the Free Software Foundation
 117 # gives unlimited permission to copy and/or distribute it,
 118 # with or without modifications, as long as this notice is preserved.
 119
 120 # serial 8
 121
 122 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 123 # -------------------------------------
 124 # Define a conditional.
 125 AC_DEFUN([AM_CONDITIONAL],
 126 [AC_PREREQ(2.52)dnl
 127  ifelse([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
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 129 AC_SUBST([$1_TRUE])dnl
 130 AC_SUBST([$1_FALSE])dnl
 131 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 132 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 133 if $2; then
 134   $1_TRUE=
 135   $1_FALSE='#'
 136 else
 137   $1_TRUE='#'
 138   $1_FALSE=
 139 fi
 140 AC_CONFIG_COMMANDS_PRE(
 141 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 142   AC_MSG_ERROR([[conditional "$1" was never defined.
 143 Usually this means the macro was only invoked conditionally.]])
 144 fi])])
 145
 146 # Do all the work for Automake.                             -*- Autoconf -*-
 147
 148 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
 149 # 2005, 2006, 2008 Free Software Foundation, Inc.
 150 #
 151 # This file is free software; the Free Software Foundation
 152 # gives unlimited permission to copy and/or distribute it,
 153 # with or without modifications, as long as this notice is preserved.
 154
 155 # serial 13
 156
 157 # This macro actually does too much.  Some checks are only needed if
 158 # your package does certain things.  But this isn't really a big deal.
 159
 160 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 161 # AM_INIT_AUTOMAKE([OPTIONS])
 162 # -----------------------------------------------
 163 # The call with PACKAGE and VERSION arguments is the old style
 164 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 165 # and VERSION should now be passed to AC_INIT and removed from
 166 # the call to AM_INIT_AUTOMAKE.
 167 # We support both call styles for the transition.  After
 168 # the next Automake release, Autoconf can make the AC_INIT
 169 # arguments mandatory, and then we can depend on a new Autoconf
 170 # release and drop the old call support.
 171 AC_DEFUN([AM_INIT_AUTOMAKE],
 172 [AC_PREREQ([2.60])dnl
 173 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 174 dnl the ones we care about.
 175 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 176 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 177 AC_REQUIRE([AC_PROG_INSTALL])dnl
 178 if test "`cd $srcdir && pwd`" != "`pwd`"; then
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 181   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
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 183   if test -f $srcdir/config.status; then
 184     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
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 186 fi
 187
 188 # test whether we have cygpath
 189 if test -z "$CYGPATH_W"; then
 190   if (cygpath --version) >/dev/null 2>/dev/null; then
 191     CYGPATH_W='cygpath -w'
 192   else
 193     CYGPATH_W=echo
 194   fi
 195 fi
 196 AC_SUBST([CYGPATH_W])
 197
 198 # Define the identity of the package.
 199 dnl Distinguish between old-style and new-style calls.
 200 m4_ifval([$2],
 201 [m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 202  AC_SUBST([PACKAGE], [$1])dnl
 203  AC_SUBST([VERSION], [$2])],
 204 [_AM_SET_OPTIONS([$1])dnl
 205 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 206 m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
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 208  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 209  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 210
 211 _AM_IF_OPTION([no-define],,
 212 [AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 213  AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
 214
 215 # Some tools Automake needs.
 216 AC_REQUIRE([AM_SANITY_CHECK])dnl
 217 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 218 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
 219 AM_MISSING_PROG(AUTOCONF, autoconf)
 220 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
 221 AM_MISSING_PROG(AUTOHEADER, autoheader)
 222 AM_MISSING_PROG(MAKEINFO, makeinfo)
 223 AM_PROG_INSTALL_SH
 224 AM_PROG_INSTALL_STRIP
 225 AC_REQUIRE([AM_PROG_MKDIR_P])dnl
 226 # We need awk for the "check" target.  The system "awk" is bad on
 227 # some platforms.
 228 AC_REQUIRE([AC_PROG_AWK])dnl
 229 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 230 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 231 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 232               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 233                              [_AM_PROG_TAR([v7])])])
 234 _AM_IF_OPTION([no-dependencies],,
 235 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 236                   [_AM_DEPENDENCIES(CC)],
 237                   [define([AC_PROG_CC],
 238                           defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
 239 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 240                   [_AM_DEPENDENCIES(CXX)],
 241                   [define([AC_PROG_CXX],
 242                           defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
 243 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 244                   [_AM_DEPENDENCIES(OBJC)],
 245                   [define([AC_PROG_OBJC],
 246                           defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
 247 ])
 248 ])
 249
 250
 251 # When config.status generates a header, we must update the stamp-h file.
 252 # This file resides in the same directory as the config header
 253 # that is generated.  The stamp files are numbered to have different names.
 254
 255 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 256 # loop where config.status creates the headers, so we can generate
 257 # our stamp files there.
 258 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 259 [# Compute $1's index in $config_headers.
 260 _am_arg=$1
 261 _am_stamp_count=1
 262 for _am_header in $config_headers :; do
 263   case $_am_header in
 264     $_am_arg | $_am_arg:* )
 265       break ;;
 266     * )
 267       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 268   esac
 269 done
 270 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 271
 272 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
 273 #
 274 # This file is free software; the Free Software Foundation
 275 # gives unlimited permission to copy and/or distribute it,
 276 # with or without modifications, as long as this notice is preserved.
 277
 278 # AM_PROG_INSTALL_SH
 279 # ------------------
 280 # Define $install_sh.
 281 AC_DEFUN([AM_PROG_INSTALL_SH],
 282 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 283 install_sh=${install_sh-"\$(SHELL) $am_aux_dir/install-sh"}
 284 AC_SUBST(install_sh)])
 285
 286 # Copyright (C) 2003, 2005  Free Software Foundation, Inc.
 287 #
 288 # This file is free software; the Free Software Foundation
 289 # gives unlimited permission to copy and/or distribute it,
 290 # with or without modifications, as long as this notice is preserved.
 291
 292 # serial 2
 293
 294 # Check whether the underlying file-system supports filenames
 295 # with a leading dot.  For instance MS-DOS doesn't.
 296 AC_DEFUN([AM_SET_LEADING_DOT],
 297 [rm -rf .tst 2>/dev/null
 298 mkdir .tst 2>/dev/null
 299 if test -d .tst; then
 300   am__leading_dot=.
 301 else
 302   am__leading_dot=_
 303 fi
 304 rmdir .tst 2>/dev/null
 305 AC_SUBST([am__leading_dot])])
 306
 307 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 308 # From Jim Meyering
 309
 310 # Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005
 311 # Free Software Foundation, Inc.
 312 #
 313 # This file is free software; the Free Software Foundation
 314 # gives unlimited permission to copy and/or distribute it,
 315 # with or without modifications, as long as this notice is preserved.
 316
 317 # serial 4
 318
 319 AC_DEFUN([AM_MAINTAINER_MODE],
 320 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 321   dnl maintainer-mode is disabled by default
 322   AC_ARG_ENABLE(maintainer-mode,
 323 [  --enable-maintainer-mode  enable make rules and dependencies not useful
 324                           (and sometimes confusing) to the casual installer],
 325       USE_MAINTAINER_MODE=$enableval,
 326       USE_MAINTAINER_MODE=no)
 327   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 328   AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
 329   MAINT=$MAINTAINER_MODE_TRUE
 330   AC_SUBST(MAINT)dnl
 331 ]
 332 )
 333
 334 AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
 335
 336 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 337
 338 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005
 339 # Free Software Foundation, Inc.
 340 #
 341 # This file is free software; the Free Software Foundation
 342 # gives unlimited permission to copy and/or distribute it,
 343 # with or without modifications, as long as this notice is preserved.
 344
 345 # serial 5
 346
 347 # AM_MISSING_PROG(NAME, PROGRAM)
 348 # ------------------------------
 349 AC_DEFUN([AM_MISSING_PROG],
 350 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 351 $1=${$1-"${am_missing_run}$2"}
 352 AC_SUBST($1)])
 353
 354
 355 # AM_MISSING_HAS_RUN
 356 # ------------------
 357 # Define MISSING if not defined so far and test if it supports --run.
 358 # If it does, set am_missing_run to use it, otherwise, to nothing.
 359 AC_DEFUN([AM_MISSING_HAS_RUN],
 360 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 361 AC_REQUIRE_AUX_FILE([missing])dnl
 362 test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
 363 # Use eval to expand $SHELL
 364 if eval "$MISSING --run true"; then
 365   am_missing_run="$MISSING --run "
 366 else
 367   am_missing_run=
 368   AC_MSG_WARN([`missing' script is too old or missing])
 369 fi
 370 ])
 371
 372 # Copyright (C) 2003, 2004, 2005, 2006  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_PROG_MKDIR_P
 379 # ---------------
 380 # Check for `mkdir -p'.
 381 AC_DEFUN([AM_PROG_MKDIR_P],
 382 [AC_PREREQ([2.60])dnl
 383 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 384 dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
 385 dnl while keeping a definition of mkdir_p for backward compatibility.
 386 dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
 387 dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
 388 dnl Makefile.ins that do not define MKDIR_P, so we do our own
 389 dnl adjustment using top_builddir (which is defined more often than
 390 dnl MKDIR_P).
 391 AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
 392 case $mkdir_p in
 393   [[\\/$]]* | ?:[[\\/]]*) ;;
 394   */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
 395 esac
 396 ])
 397
 398 # Helper functions for option handling.                     -*- Autoconf -*-
 399
 400 # Copyright (C) 2001, 2002, 2003, 2005  Free Software Foundation, Inc.
 401 #
 402 # This file is free software; the Free Software Foundation
 403 # gives unlimited permission to copy and/or distribute it,
 404 # with or without modifications, as long as this notice is preserved.
 405
 406 # serial 3
 407
 408 # _AM_MANGLE_OPTION(NAME)
 409 # -----------------------
 410 AC_DEFUN([_AM_MANGLE_OPTION],
 411 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 412
 413 # _AM_SET_OPTION(NAME)
 414 # ------------------------------
 415 # Set option NAME.  Presently that only means defining a flag for this option.
 416 AC_DEFUN([_AM_SET_OPTION],
 417 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
 418
 419 # _AM_SET_OPTIONS(OPTIONS)
 420 # ----------------------------------
 421 # OPTIONS is a space-separated list of Automake options.
 422 AC_DEFUN([_AM_SET_OPTIONS],
 423 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 424
 425 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 426 # -------------------------------------------
 427 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 428 AC_DEFUN([_AM_IF_OPTION],
 429 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 430
 431 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 432
 433 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
 434 # Free Software Foundation, Inc.
 435 #
 436 # This file is free software; the Free Software Foundation
 437 # gives unlimited permission to copy and/or distribute it,
 438 # with or without modifications, as long as this notice is preserved.
 439
 440 # serial 4
 441
 442 # AM_SANITY_CHECK
 443 # ---------------
 444 AC_DEFUN([AM_SANITY_CHECK],
 445 [AC_MSG_CHECKING([whether build environment is sane])
 446 # Just in case
 447 sleep 1
 448 echo timestamp > conftest.file
 449 # Do `set' in a subshell so we don't clobber the current shell's
 450 # arguments.  Must try -L first in case configure is actually a
 451 # symlink; some systems play weird games with the mod time of symlinks
 452 # (eg FreeBSD returns the mod time of the symlink's containing
 453 # directory).
 454 if (
 455    set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
 456    if test "$[*]" = "X"; then
 457       # -L didn't work.
 458       set X `ls -t $srcdir/configure conftest.file`
 459    fi
 460    rm -f conftest.file
 461    if test "$[*]" != "X $srcdir/configure conftest.file" \
 462       && test "$[*]" != "X conftest.file $srcdir/configure"; then
 463
 464       # If neither matched, then we have a broken ls.  This can happen
 465       # if, for instance, CONFIG_SHELL is bash and it inherits a
 466       # broken ls alias from the environment.  This has actually
 467       # happened.  Such a system could not be considered "sane".
 468       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 469 alias in your environment])
 470    fi
 471
 472    test "$[2]" = conftest.file
 473    )
 474 then
 475    # Ok.
 476    :
 477 else
 478    AC_MSG_ERROR([newly created file is older than distributed files!
 479 Check your system clock])
 480 fi
 481 AC_MSG_RESULT(yes)])
 482
 483 # Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
 484 #
 485 # This file is free software; the Free Software Foundation
 486 # gives unlimited permission to copy and/or distribute it,
 487 # with or without modifications, as long as this notice is preserved.
 488
 489 # AM_PROG_INSTALL_STRIP
 490 # ---------------------
 491 # One issue with vendor `install' (even GNU) is that you can't
 492 # specify the program used to strip binaries.  This is especially
 493 # annoying in cross-compiling environments, where the build's strip
 494 # is unlikely to handle the host's binaries.
 495 # Fortunately install-sh will honor a STRIPPROG variable, so we
 496 # always use install-sh in `make install-strip', and initialize
 497 # STRIPPROG with the value of the STRIP variable (set by the user).
 498 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 499 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 500 # Installed binaries are usually stripped using `strip' when the user
 501 # run `make install-strip'.  However `strip' might not be the right
 502 # tool to use in cross-compilation environments, therefore Automake
 503 # will honor the `STRIP' environment variable to overrule this program.
 504 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
 505 if test "$cross_compiling" != no; then
 506   AC_CHECK_TOOL([STRIP], [strip], :)
 507 fi
 508 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 509 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 510
 511 # Copyright (C) 2006  Free Software Foundation, Inc.
 512 #
 513 # This file is free software; the Free Software Foundation
 514 # gives unlimited permission to copy and/or distribute it,
 515 # with or without modifications, as long as this notice is preserved.
 516
 517 # _AM_SUBST_NOTMAKE(VARIABLE)
 518 # ---------------------------
 519 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 520 # This macro is traced by Automake.
 521 AC_DEFUN([_AM_SUBST_NOTMAKE])
 522
 523 # Check how to create a tarball.                            -*- Autoconf -*-
 524
 525 # Copyright (C) 2004, 2005  Free Software Foundation, Inc.
 526 #
 527 # This file is free software; the Free Software Foundation
 528 # gives unlimited permission to copy and/or distribute it,
 529 # with or without modifications, as long as this notice is preserved.
 530
 531 # serial 2
 532
 533 # _AM_PROG_TAR(FORMAT)
 534 # --------------------
 535 # Check how to create a tarball in format FORMAT.
 536 # FORMAT should be one of `v7', `ustar', or `pax'.
 537 #
 538 # Substitute a variable $(am__tar) that is a command
 539 # writing to stdout a FORMAT-tarball containing the directory
 540 # $tardir.
 541 #     tardir=directory && $(am__tar) > result.tar
 542 #
 543 # Substitute a variable $(am__untar) that extract such
 544 # a tarball read from stdin.
 545 #     $(am__untar) < result.tar
 546 AC_DEFUN([_AM_PROG_TAR],
 547 [# Always define AMTAR for backward compatibility.
 548 AM_MISSING_PROG([AMTAR], [tar])
 549 m4_if([$1], [v7],
 550      [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
 551      [m4_case([$1], [ustar],, [pax],,
 552               [m4_fatal([Unknown tar format])])
 553 AC_MSG_CHECKING([how to create a $1 tar archive])
 554 # Loop over all known methods to create a tar archive until one works.
 555 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 556 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 557 # Do not fold the above two line into one, because Tru64 sh and
 558 # Solaris sh will not grok spaces in the rhs of `-'.
 559 for _am_tool in $_am_tools
 560 do
 561   case $_am_tool in
 562   gnutar)
 563     for _am_tar in tar gnutar gtar;
 564     do
 565       AM_RUN_LOG([$_am_tar --version]) && break
 566     done
 567     am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 568     am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 569     am__untar="$_am_tar -xf -"
 570     ;;
 571   plaintar)
 572     # Must skip GNU tar: if it does not support --format= it doesn't create
 573     # ustar tarball either.
 574     (tar --version) >/dev/null 2>&1 && continue
 575     am__tar='tar chf - "$$tardir"'
 576     am__tar_='tar chf - "$tardir"'
 577     am__untar='tar xf -'
 578     ;;
 579   pax)
 580     am__tar='pax -L -x $1 -w "$$tardir"'
 581     am__tar_='pax -L -x $1 -w "$tardir"'
 582     am__untar='pax -r'
 583     ;;
 584   cpio)
 585     am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 586     am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 587     am__untar='cpio -i -H $1 -d'
 588     ;;
 589   none)
 590     am__tar=false
 591     am__tar_=false
 592     am__untar=false
 593     ;;
 594   esac
 595
 596   # If the value was cached, stop now.  We just wanted to have am__tar
 597   # and am__untar set.
 598   test -n "${am_cv_prog_tar_$1}" && break
 599
 600   # tar/untar a dummy directory, and stop if the command works
 601   rm -rf conftest.dir
 602   mkdir conftest.dir
 603   echo GrepMe > conftest.dir/file
 604   AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 605   rm -rf conftest.dir
 606   if test -s conftest.tar; then
 607     AM_RUN_LOG([$am__untar <conftest.tar])
 608     grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 609   fi
 610 done
 611 rm -rf conftest.dir
 612
 613 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 614 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 615 AC_SUBST([am__tar])
 616 AC_SUBST([am__untar])
 617 ]) # _AM_PROG_TAR
 618