libstdc++-v3/aclocal.m4

   1 # generated automatically by aclocal 1.15.1 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2017 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($@)])])
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  22
  23 # Copyright (C) 2002-2017 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.
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  29 # AM_AUTOMAKE_VERSION(VERSION)
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  59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  60
  61 # Copyright (C) 2001-2017 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
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  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 $ac_aux_dir to an
 102 # absolute PATH.  The drawback is that using absolute paths prevent a
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 111 # AM_CONDITIONAL                                            -*- Autoconf -*-
 112
 113 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 114 #
 115 # This file is free software; the Free Software Foundation
 116 # gives unlimited permission to copy and/or distribute it,
 117 # with or without modifications, as long as this notice is preserved.
 118
 119 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
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 143
 144 # Do all the work for Automake.                             -*- Autoconf -*-
 145
 146 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 147 #
 148 # This file is free software; the Free Software Foundation
 149 # gives unlimited permission to copy and/or distribute it,
 150 # with or without modifications, as long as this notice is preserved.
 151
 152 # This macro actually does too much.  Some checks are only needed if
 153 # your package does certain things.  But this isn't really a big deal.
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 155 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 156 m4_define([AC_PROG_CC],
 157 m4_defn([AC_PROG_CC])
 158 [_AM_PROG_CC_C_O
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 161 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 162 # AM_INIT_AUTOMAKE([OPTIONS])
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 190 if test -z "$CYGPATH_W"; then
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 216 _AM_IF_OPTION([no-define],,
 217 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 218  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 219
 220 # Some tools Automake needs.
 221 AC_REQUIRE([AM_SANITY_CHECK])dnl
 222 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 223 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 224 AM_MISSING_PROG([AUTOCONF], [autoconf])
 225 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 226 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 227 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 228 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 229 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 230 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 231 # For better backward compatibility.  To be removed once Automake 1.9.x
 232 # dies out for good.  For more background, see:
 233 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 234 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 235 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 236 # We need awk for the "check" target (and possibly the TAP driver).  The
 237 # system "awk" is bad on some platforms.
 238 AC_REQUIRE([AC_PROG_AWK])dnl
 239 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 240 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 241 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 242               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 243                              [_AM_PROG_TAR([v7])])])
 244 _AM_IF_OPTION([no-dependencies],,
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 251                   [m4_define([AC_PROG_CXX],
 252                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 253 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 254                   [_AM_DEPENDENCIES([OBJC])],
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 266 AC_CONFIG_COMMANDS_PRE(dnl
 267 [m4_provide_if([_AM_COMPILER_EXEEXT],
 268   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 269
 270 # POSIX will say in a future version that running "rm -f" with no argument
 271 # is OK; and we want to be able to make that assumption in our Makefile
 272 # recipes.  So use an aggressive probe to check that the usage we want is
 273 # actually supported "in the wild" to an acceptable degree.
 274 # See automake bug#10828.
 275 # To make any issue more visible, cause the running configure to be aborted
 276 # by default if the 'rm' program in use doesn't match our expectations; the
 277 # user can still override this though.
 278 if rm -f && rm -fr && rm -rf; then : OK; else
 279   cat >&2 <<'END'
 280 Oops!
 281
 282 Your 'rm' program seems unable to run without file operands specified
 283 on the command line, even when the '-f' option is present.  This is contrary
 284 to the behaviour of most rm programs out there, and not conforming with
 285 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
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 290
 291 END
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 294     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 295     echo >&2
 296   else
 297     cat >&2 <<'END'
 298 Aborting the configuration process, to ensure you take notice of the issue.
 299
 300 You can download and install GNU coreutils to get an 'rm' implementation
 301 that behaves properly: <http://www.gnu.org/software/coreutils/>.
 302
 303 If you want to complete the configuration process using your problematic
 304 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 305 to "yes", and re-run configure.
 306
 307 END
 308     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 309   fi
 310 fi
 311 dnl The trailing newline in this macro's definition is deliberate, for
 312 dnl backward compatibility and to allow trailing 'dnl'-style comments
 313 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 314 ])
 315
 316 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 317 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
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 319 m4_define([_AC_COMPILER_EXEEXT],
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 321
 322 # When config.status generates a header, we must update the stamp-h file.
 323 # This file resides in the same directory as the config header
 324 # that is generated.  The stamp files are numbered to have different names.
 325
 326 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 327 # loop where config.status creates the headers, so we can generate
 328 # our stamp files there.
 329 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 330 [# Compute $1's index in $config_headers.
 331 _am_arg=$1
 332 _am_stamp_count=1
 333 for _am_header in $config_headers :; do
 334   case $_am_header in
 335     $_am_arg | $_am_arg:* )
 336       break ;;
 337     * )
 338       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 339   esac
 340 done
 341 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 342
 343 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 344 #
 345 # This file is free software; the Free Software Foundation
 346 # gives unlimited permission to copy and/or distribute it,
 347 # with or without modifications, as long as this notice is preserved.
 348
 349 # AM_PROG_INSTALL_SH
 350 # ------------------
 351 # Define $install_sh.
 352 AC_DEFUN([AM_PROG_INSTALL_SH],
 353 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 354 if test x"${install_sh+set}" != xset; then
 355   case $am_aux_dir in
 356   *\ * | *\     *)
 357     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 358   *)
 359     install_sh="\${SHELL} $am_aux_dir/install-sh"
 360   esac
 361 fi
 362 AC_SUBST([install_sh])])
 363
 364 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 365 # From Jim Meyering
 366
 367 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 368 #
 369 # This file is free software; the Free Software Foundation
 370 # gives unlimited permission to copy and/or distribute it,
 371 # with or without modifications, as long as this notice is preserved.
 372
 373 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 374 # ----------------------------------
 375 # Control maintainer-specific portions of Makefiles.
 376 # Default is to disable them, unless 'enable' is passed literally.
 377 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 378 # can override the default with the --enable/--disable switch.
 379 AC_DEFUN([AM_MAINTAINER_MODE],
 380 [m4_case(m4_default([$1], [disable]),
 381        [enable], [m4_define([am_maintainer_other], [disable])],
 382        [disable], [m4_define([am_maintainer_other], [enable])],
 383        [m4_define([am_maintainer_other], [enable])
 384         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 385 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 386   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 387   AC_ARG_ENABLE([maintainer-mode],
 388     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 389       am_maintainer_other[ make rules and dependencies not useful
 390       (and sometimes confusing) to the casual installer])],
 391     [USE_MAINTAINER_MODE=$enableval],
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 395   MAINT=$MAINTAINER_MODE_TRUE
 396   AC_SUBST([MAINT])dnl
 397 ]
 398 )
 399
 400 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 401
 402 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 403 #
 404 # This file is free software; the Free Software Foundation
 405 # gives unlimited permission to copy and/or distribute it,
 406 # with or without modifications, as long as this notice is preserved.
 407
 408 # AM_MISSING_PROG(NAME, PROGRAM)
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 413 AC_SUBST($1)])
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 415 # AM_MISSING_HAS_RUN
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 419 AC_DEFUN([AM_MISSING_HAS_RUN],
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 437 ])
 438
 439 # Helper functions for option handling.                     -*- Autoconf -*-
 440
 441 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 442 #
 443 # This file is free software; the Free Software Foundation
 444 # gives unlimited permission to copy and/or distribute it,
 445 # with or without modifications, as long as this notice is preserved.
 446
 447 # _AM_MANGLE_OPTION(NAME)
 448 # -----------------------
 449 AC_DEFUN([_AM_MANGLE_OPTION],
 450 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 451
 452 # _AM_SET_OPTION(NAME)
 453 # --------------------
 454 # Set option NAME.  Presently that only means defining a flag for this option.
 455 AC_DEFUN([_AM_SET_OPTION],
 456 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 457
 458 # _AM_SET_OPTIONS(OPTIONS)
 459 # ------------------------
 460 # OPTIONS is a space-separated list of Automake options.
 461 AC_DEFUN([_AM_SET_OPTIONS],
 462 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 463
 464 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 465 # -------------------------------------------
 466 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 467 AC_DEFUN([_AM_IF_OPTION],
 468 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 469
 470 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
 471 #
 472 # This file is free software; the Free Software Foundation
 473 # gives unlimited permission to copy and/or distribute it,
 474 # with or without modifications, as long as this notice is preserved.
 475
 476 # _AM_PROG_CC_C_O
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 482 AC_REQUIRE_AUX_FILE([compile])dnl
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 488   # Make sure it works both with $CC and with simple cc.
 489   # Following AC_PROG_CC_C_O, we do the test twice because some
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 499       break
 500     fi
 501   done
 502   rm -f core conftest*
 503   unset am_i])
 504 if test "$am_cv_prog_cc_c_o" != yes; then
 505    # Losing compiler, so override with the script.
 506    # FIXME: It is wrong to rewrite CC.
 507    # But if we don't then we get into trouble of one sort or another.
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 511 fi
 512 AC_LANG_POP([C])])
 513
 514 # For backward compatibility.
 515 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 516
 517 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 518 #
 519 # This file is free software; the Free Software Foundation
 520 # gives unlimited permission to copy and/or distribute it,
 521 # with or without modifications, as long as this notice is preserved.
 522
 523 # AM_RUN_LOG(COMMAND)
 524 # -------------------
 525 # Run COMMAND, save the exit status in ac_status, and log it.
 526 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 527 AC_DEFUN([AM_RUN_LOG],
 528 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 529    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 530    ac_status=$?
 531    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 532    (exit $ac_status); }])
 533
 534 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 535
 536 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 537 #
 538 # This file is free software; the Free Software Foundation
 539 # gives unlimited permission to copy and/or distribute it,
 540 # with or without modifications, as long as this notice is preserved.
 541
 542 # AM_SANITY_CHECK
 543 # ---------------
 544 AC_DEFUN([AM_SANITY_CHECK],
 545 [AC_MSG_CHECKING([whether build environment is sane])
 546 # Reject unsafe characters in $srcdir or the absolute working directory
 547 # name.  Accept space and tab only in the latter.
 548 am_lf='
 549 '
 550 case `pwd` in
 551   *[[\\\"\#\$\&\'\`$am_lf]]*)
 552     AC_MSG_ERROR([unsafe absolute working directory name]);;
 553 esac
 554 case $srcdir in
 555   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 556     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 557 esac
 558
 559 # Do 'set' in a subshell so we don't clobber the current shell's
 560 # arguments.  Must try -L first in case configure is actually a
 561 # symlink; some systems play weird games with the mod time of symlinks
 562 # (eg FreeBSD returns the mod time of the symlink's containing
 563 # directory).
 564 if (
 565    am_has_slept=no
 566    for am_try in 1 2; do
 567      echo "timestamp, slept: $am_has_slept" > conftest.file
 568      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 569      if test "$[*]" = "X"; then
 570         # -L didn't work.
 571         set X `ls -t "$srcdir/configure" conftest.file`
 572      fi
 573      if test "$[*]" != "X $srcdir/configure conftest.file" \
 574         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 575
 576         # If neither matched, then we have a broken ls.  This can happen
 577         # if, for instance, CONFIG_SHELL is bash and it inherits a
 578         # broken ls alias from the environment.  This has actually
 579         # happened.  Such a system could not be considered "sane".
 580         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 581   alias in your environment])
 582      fi
 583      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 584        break
 585      fi
 586      # Just in case.
 587      sleep 1
 588      am_has_slept=yes
 589    done
 590    test "$[2]" = conftest.file
 591    )
 592 then
 593    # Ok.
 594    :
 595 else
 596    AC_MSG_ERROR([newly created file is older than distributed files!
 597 Check your system clock])
 598 fi
 599 AC_MSG_RESULT([yes])
 600 # If we didn't sleep, we still need to ensure time stamps of config.status and
 601 # generated files are strictly newer.
 602 am_sleep_pid=
 603 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 604   ( sleep 1 ) &
 605   am_sleep_pid=$!
 606 fi
 607 AC_CONFIG_COMMANDS_PRE(
 608   [AC_MSG_CHECKING([that generated files are newer than configure])
 609    if test -n "$am_sleep_pid"; then
 610      # Hide warnings about reused PIDs.
 611      wait $am_sleep_pid 2>/dev/null
 612    fi
 613    AC_MSG_RESULT([done])])
 614 rm -f conftest.file
 615 ])
 616
 617 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
 618 #
 619 # This file is free software; the Free Software Foundation
 620 # gives unlimited permission to copy and/or distribute it,
 621 # with or without modifications, as long as this notice is preserved.
 622
 623 # AM_SILENT_RULES([DEFAULT])
 624 # --------------------------
 625 # Enable less verbose build rules; with the default set to DEFAULT
 626 # ("yes" being less verbose, "no" or empty being verbose).
 627 AC_DEFUN([AM_SILENT_RULES],
 628 [AC_ARG_ENABLE([silent-rules], [dnl
 629 AS_HELP_STRING(
 630   [--enable-silent-rules],
 631   [less verbose build output (undo: "make V=1")])
 632 AS_HELP_STRING(
 633   [--disable-silent-rules],
 634   [verbose build output (undo: "make V=0")])dnl
 635 ])
 636 case $enable_silent_rules in @%:@ (((
 637   yes) AM_DEFAULT_VERBOSITY=0;;
 638    no) AM_DEFAULT_VERBOSITY=1;;
 639     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 640 esac
 641 dnl
 642 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 643 dnl do not support nested variable expansions.
 644 dnl See automake bug#9928 and bug#10237.
 645 am_make=${MAKE-make}
 646 AC_CACHE_CHECK([whether $am_make supports nested variables],
 647    [am_cv_make_support_nested_variables],
 648    [if AS_ECHO([['TRUE=$(BAR$(V))
 649 BAR0=false
 650 BAR1=true
 651 V=1
 652 am__doit:
 653         @$(TRUE)
 654 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 655   am_cv_make_support_nested_variables=yes
 656 else
 657   am_cv_make_support_nested_variables=no
 658 fi])
 659 if test $am_cv_make_support_nested_variables = yes; then
 660   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 661   AM_V='$(V)'
 662   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 663 else
 664   AM_V=$AM_DEFAULT_VERBOSITY
 665   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 666 fi
 667 AC_SUBST([AM_V])dnl
 668 AM_SUBST_NOTMAKE([AM_V])dnl
 669 AC_SUBST([AM_DEFAULT_V])dnl
 670 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 671 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 672 AM_BACKSLASH='\'
 673 AC_SUBST([AM_BACKSLASH])dnl
 674 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 675 ])
 676
 677 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 678 #
 679 # This file is free software; the Free Software Foundation
 680 # gives unlimited permission to copy and/or distribute it,
 681 # with or without modifications, as long as this notice is preserved.
 682
 683 # AM_PROG_INSTALL_STRIP
 684 # ---------------------
 685 # One issue with vendor 'install' (even GNU) is that you can't
 686 # specify the program used to strip binaries.  This is especially
 687 # annoying in cross-compiling environments, where the build's strip
 688 # is unlikely to handle the host's binaries.
 689 # Fortunately install-sh will honor a STRIPPROG variable, so we
 690 # always use install-sh in "make install-strip", and initialize
 691 # STRIPPROG with the value of the STRIP variable (set by the user).
 692 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 693 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 694 # Installed binaries are usually stripped using 'strip' when the user
 695 # run "make install-strip".  However 'strip' might not be the right
 696 # tool to use in cross-compilation environments, therefore Automake
 697 # will honor the 'STRIP' environment variable to overrule this program.
 698 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 699 if test "$cross_compiling" != no; then
 700   AC_CHECK_TOOL([STRIP], [strip], :)
 701 fi
 702 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 703 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 704
 705 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
 706 #
 707 # This file is free software; the Free Software Foundation
 708 # gives unlimited permission to copy and/or distribute it,
 709 # with or without modifications, as long as this notice is preserved.
 710
 711 # _AM_SUBST_NOTMAKE(VARIABLE)
 712 # ---------------------------
 713 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 714 # This macro is traced by Automake.
 715 AC_DEFUN([_AM_SUBST_NOTMAKE])
 716
 717 # AM_SUBST_NOTMAKE(VARIABLE)
 718 # --------------------------
 719 # Public sister of _AM_SUBST_NOTMAKE.
 720 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 721
 722 # Check how to create a tarball.                            -*- Autoconf -*-
 723
 724 # Copyright (C) 2004-2017 Free Software Foundation, Inc.
 725 #
 726 # This file is free software; the Free Software Foundation
 727 # gives unlimited permission to copy and/or distribute it,
 728 # with or without modifications, as long as this notice is preserved.
 729
 730 # _AM_PROG_TAR(FORMAT)
 731 # --------------------
 732 # Check how to create a tarball in format FORMAT.
 733 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 734 #
 735 # Substitute a variable $(am__tar) that is a command
 736 # writing to stdout a FORMAT-tarball containing the directory
 737 # $tardir.
 738 #     tardir=directory && $(am__tar) > result.tar
 739 #
 740 # Substitute a variable $(am__untar) that extract such
 741 # a tarball read from stdin.
 742 #     $(am__untar) < result.tar
 743 #
 744 AC_DEFUN([_AM_PROG_TAR],
 745 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 746 # in the wild :-(  We should find a proper way to deprecate it ...
 747 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 748
 749 # We'll loop over all known methods to create a tar archive until one works.
 750 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 751
 752 m4_if([$1], [v7],
 753   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 754
 755   [m4_case([$1],
 756     [ustar],
 757      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 758       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 759       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 760       # and bug#13588).
 761       am_max_uid=2097151 # 2^21 - 1
 762       am_max_gid=$am_max_uid
 763       # The $UID and $GID variables are not portable, so we need to resort
 764       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 765       # below are definitely unexpected, so allow the users to see them
 766       # (that is, avoid stderr redirection).
 767       am_uid=`id -u || echo unknown`
 768       am_gid=`id -g || echo unknown`
 769       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 770       if test $am_uid -le $am_max_uid; then
 771          AC_MSG_RESULT([yes])
 772       else
 773          AC_MSG_RESULT([no])
 774          _am_tools=none
 775       fi
 776       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 777       if test $am_gid -le $am_max_gid; then
 778          AC_MSG_RESULT([yes])
 779       else
 780         AC_MSG_RESULT([no])
 781         _am_tools=none
 782       fi],
 783
 784   [pax],
 785     [],
 786
 787   [m4_fatal([Unknown tar format])])
 788
 789   AC_MSG_CHECKING([how to create a $1 tar archive])
 790
 791   # Go ahead even if we have the value already cached.  We do so because we
 792   # need to set the values for the 'am__tar' and 'am__untar' variables.
 793   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 794
 795   for _am_tool in $_am_tools; do
 796     case $_am_tool in
 797     gnutar)
 798       for _am_tar in tar gnutar gtar; do
 799         AM_RUN_LOG([$_am_tar --version]) && break
 800       done
 801       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 802       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 803       am__untar="$_am_tar -xf -"
 804       ;;
 805     plaintar)
 806       # Must skip GNU tar: if it does not support --format= it doesn't create
 807       # ustar tarball either.
 808       (tar --version) >/dev/null 2>&1 && continue
 809       am__tar='tar chf - "$$tardir"'
 810       am__tar_='tar chf - "$tardir"'
 811       am__untar='tar xf -'
 812       ;;
 813     pax)
 814       am__tar='pax -L -x $1 -w "$$tardir"'
 815       am__tar_='pax -L -x $1 -w "$tardir"'
 816       am__untar='pax -r'
 817       ;;
 818     cpio)
 819       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 820       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 821       am__untar='cpio -i -H $1 -d'
 822       ;;
 823     none)
 824       am__tar=false
 825       am__tar_=false
 826       am__untar=false
 827       ;;
 828     esac
 829
 830     # If the value was cached, stop now.  We just wanted to have am__tar
 831     # and am__untar set.
 832     test -n "${am_cv_prog_tar_$1}" && break
 833
 834     # tar/untar a dummy directory, and stop if the command works.
 835     rm -rf conftest.dir
 836     mkdir conftest.dir
 837     echo GrepMe > conftest.dir/file
 838     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 839     rm -rf conftest.dir
 840     if test -s conftest.tar; then
 841       AM_RUN_LOG([$am__untar <conftest.tar])
 842       AM_RUN_LOG([cat conftest.dir/file])
 843       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 844     fi
 845   done
 846   rm -rf conftest.dir
 847
 848   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 849   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 850
 851 AC_SUBST([am__tar])
 852 AC_SUBST([am__untar])
 853 ]) # _AM_PROG_TAR
 854
 855 m4_include([../config/acx.m4])
 856 m4_include([../config/enable.m4])
 857 m4_include([../config/futex.m4])
 858 m4_include([../config/hwcaps.m4])
 859 m4_include([../config/iconv.m4])
 860 m4_include([../config/lead-dot.m4])
 861 m4_include([../config/lib-ld.m4])
 862 m4_include([../config/lib-link.m4])
 863 m4_include([../config/lib-prefix.m4])
 864 m4_include([../config/lthostflags.m4])
 865 m4_include([../config/multi.m4])
 866 m4_include([../config/no-executables.m4])
 867 m4_include([../config/override.m4])
 868 m4_include([../config/stdint.m4])
 869 m4_include([../config/unwind_ipinfo.m4])
 870 m4_include([../libtool.m4])
 871 m4_include([../ltoptions.m4])
 872 m4_include([../ltsugar.m4])
 873 m4_include([../ltversion.m4])
 874 m4_include([../lt~obsolete.m4])
 875 m4_include([crossconfig.m4])
 876 m4_include([linkage.m4])
 877 m4_include([acinclude.m4])