src/png/aclocal.m4

   1 # generated automatically by aclocal 1.13.3 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2013 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) 2002-2013 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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  59 # Figure out how to run the assembler.                      -*- Autoconf -*-
  60
  61 # Copyright (C) 2001-2013 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,
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  79 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
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  81 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  82 #
  83 # This file is free software; the Free Software Foundation
  84 # gives unlimited permission to copy and/or distribute it,
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 132 # AM_CONDITIONAL                                            -*- Autoconf -*-
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 134 # Copyright (C) 1997-2013 Free Software Foundation, Inc.
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 136 # This file is free software; the Free Software Foundation
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 165 # Copyright (C) 1999-2013 Free Software Foundation, Inc.
 166 #
 167 # This file is free software; the Free Software Foundation
 168 # gives unlimited permission to copy and/or distribute it,
 169 # with or without modifications, as long as this notice is preserved.
 170
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 353
 354 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 355
 356 # Copyright (C) 1999-2013 Free Software Foundation, Inc.
 357 #
 358 # This file is free software; the Free Software Foundation
 359 # gives unlimited permission to copy and/or distribute it,
 360 # with or without modifications, as long as this notice is preserved.
 361
 362
 363 # _AM_OUTPUT_DEPENDENCY_COMMANDS
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 366 [{
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 370   case $CONFIG_FILES in
 371   *\'*) eval set x "$CONFIG_FILES" ;;
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 376   do
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 417 # AM_OUTPUT_DEPENDENCY_COMMANDS
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 429
 430 # Do all the work for Automake.                             -*- Autoconf -*-
 431
 432 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
 433 #
 434 # This file is free software; the Free Software Foundation
 435 # gives unlimited permission to copy and/or distribute it,
 436 # with or without modifications, as long as this notice is preserved.
 437
 438 # This macro actually does too much.  Some checks are only needed if
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 506 AM_MISSING_PROG([AUTOHEADER], [autoheader])
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 520 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 521 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 522               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 523                              [_AM_PROG_TAR([v7])])])
 524 _AM_IF_OPTION([no-dependencies],,
 525 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 526                   [_AM_DEPENDENCIES([CC])],
 527                   [m4_define([AC_PROG_CC],
 528                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 529 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 530                   [_AM_DEPENDENCIES([CXX])],
 531                   [m4_define([AC_PROG_CXX],
 532                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 533 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 534                   [_AM_DEPENDENCIES([OBJC])],
 535                   [m4_define([AC_PROG_OBJC],
 536                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 537 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 538                   [_AM_DEPENDENCIES([OBJCXX])],
 539                   [m4_define([AC_PROG_OBJCXX],
 540                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 541 ])
 542 AC_REQUIRE([AM_SILENT_RULES])dnl
 543 dnl The testsuite driver may need to know about EXEEXT, so add the
 544 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 545 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 546 AC_CONFIG_COMMANDS_PRE(dnl
 547 [m4_provide_if([_AM_COMPILER_EXEEXT],
 548   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 549 ])
 550
 551 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 552 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 553 dnl mangled by Autoconf and run in a shell conditional statement.
 554 m4_define([_AC_COMPILER_EXEEXT],
 555 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 556
 557
 558 # When config.status generates a header, we must update the stamp-h file.
 559 # This file resides in the same directory as the config header
 560 # that is generated.  The stamp files are numbered to have different names.
 561
 562 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 563 # loop where config.status creates the headers, so we can generate
 564 # our stamp files there.
 565 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 566 [# Compute $1's index in $config_headers.
 567 _am_arg=$1
 568 _am_stamp_count=1
 569 for _am_header in $config_headers :; do
 570   case $_am_header in
 571     $_am_arg | $_am_arg:* )
 572       break ;;
 573     * )
 574       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 575   esac
 576 done
 577 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 578
 579 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
 580 #
 581 # This file is free software; the Free Software Foundation
 582 # gives unlimited permission to copy and/or distribute it,
 583 # with or without modifications, as long as this notice is preserved.
 584
 585 # AM_PROG_INSTALL_SH
 586 # ------------------
 587 # Define $install_sh.
 588 AC_DEFUN([AM_PROG_INSTALL_SH],
 589 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 590 if test x"${install_sh}" != xset; then
 591   case $am_aux_dir in
 592   *\ * | *\     *)
 593     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 594   *)
 595     install_sh="\${SHELL} $am_aux_dir/install-sh"
 596   esac
 597 fi
 598 AC_SUBST([install_sh])])
 599
 600 # Copyright (C) 2003-2013 Free Software Foundation, Inc.
 601 #
 602 # This file is free software; the Free Software Foundation
 603 # gives unlimited permission to copy and/or distribute it,
 604 # with or without modifications, as long as this notice is preserved.
 605
 606 # Check whether the underlying file-system supports filenames
 607 # with a leading dot.  For instance MS-DOS doesn't.
 608 AC_DEFUN([AM_SET_LEADING_DOT],
 609 [rm -rf .tst 2>/dev/null
 610 mkdir .tst 2>/dev/null
 611 if test -d .tst; then
 612   am__leading_dot=.
 613 else
 614   am__leading_dot=_
 615 fi
 616 rmdir .tst 2>/dev/null
 617 AC_SUBST([am__leading_dot])])
 618
 619 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 620 # From Jim Meyering
 621
 622 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
 623 #
 624 # This file is free software; the Free Software Foundation
 625 # gives unlimited permission to copy and/or distribute it,
 626 # with or without modifications, as long as this notice is preserved.
 627
 628 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 629 # ----------------------------------
 630 # Control maintainer-specific portions of Makefiles.
 631 # Default is to disable them, unless 'enable' is passed literally.
 632 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 633 # can override the default with the --enable/--disable switch.
 634 AC_DEFUN([AM_MAINTAINER_MODE],
 635 [m4_case(m4_default([$1], [disable]),
 636        [enable], [m4_define([am_maintainer_other], [disable])],
 637        [disable], [m4_define([am_maintainer_other], [enable])],
 638        [m4_define([am_maintainer_other], [enable])
 639         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 640 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 641   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 642   AC_ARG_ENABLE([maintainer-mode],
 643     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 644       am_maintainer_other[ make rules and dependencies not useful
 645       (and sometimes confusing) to the casual installer])],
 646     [USE_MAINTAINER_MODE=$enableval],
 647     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 648   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 649   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 650   MAINT=$MAINTAINER_MODE_TRUE
 651   AC_SUBST([MAINT])dnl
 652 ]
 653 )
 654
 655 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 656
 657 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
 658 #
 659 # This file is free software; the Free Software Foundation
 660 # gives unlimited permission to copy and/or distribute it,
 661 # with or without modifications, as long as this notice is preserved.
 662
 663 # AM_MAKE_INCLUDE()
 664 # -----------------
 665 # Check to see how make treats includes.
 666 AC_DEFUN([AM_MAKE_INCLUDE],
 667 [am_make=${MAKE-make}
 668 cat > confinc << 'END'
 669 am__doit:
 670         @echo this is the am__doit target
 671 .PHONY: am__doit
 672 END
 673 # If we don't find an include directive, just comment out the code.
 674 AC_MSG_CHECKING([for style of include used by $am_make])
 675 am__include="#"
 676 am__quote=
 677 _am_result=none
 678 # First try GNU make style include.
 679 echo "include confinc" > confmf
 680 # Ignore all kinds of additional output from 'make'.
 681 case `$am_make -s -f confmf 2> /dev/null` in #(
 682 *the\ am__doit\ target*)
 683   am__include=include
 684   am__quote=
 685   _am_result=GNU
 686   ;;
 687 esac
 688 # Now try BSD make style include.
 689 if test "$am__include" = "#"; then
 690    echo '.include "confinc"' > confmf
 691    case `$am_make -s -f confmf 2> /dev/null` in #(
 692    *the\ am__doit\ target*)
 693      am__include=.include
 694      am__quote="\""
 695      _am_result=BSD
 696      ;;
 697    esac
 698 fi
 699 AC_SUBST([am__include])
 700 AC_SUBST([am__quote])
 701 AC_MSG_RESULT([$_am_result])
 702 rm -f confinc confmf
 703 ])
 704
 705 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 706
 707 # Copyright (C) 1997-2013 Free Software Foundation, Inc.
 708 #
 709 # This file is free software; the Free Software Foundation
 710 # gives unlimited permission to copy and/or distribute it,
 711 # with or without modifications, as long as this notice is preserved.
 712
 713 # AM_MISSING_PROG(NAME, PROGRAM)
 714 # ------------------------------
 715 AC_DEFUN([AM_MISSING_PROG],
 716 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 717 $1=${$1-"${am_missing_run}$2"}
 718 AC_SUBST($1)])
 719
 720 # AM_MISSING_HAS_RUN
 721 # ------------------
 722 # Define MISSING if not defined so far and test if it is modern enough.
 723 # If it is, set am_missing_run to use it, otherwise, to nothing.
 724 AC_DEFUN([AM_MISSING_HAS_RUN],
 725 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 726 AC_REQUIRE_AUX_FILE([missing])dnl
 727 if test x"${MISSING+set}" != xset; then
 728   case $am_aux_dir in
 729   *\ * | *\     *)
 730     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 731   *)
 732     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 733   esac
 734 fi
 735 # Use eval to expand $SHELL
 736 if eval "$MISSING --is-lightweight"; then
 737   am_missing_run="$MISSING "
 738 else
 739   am_missing_run=
 740   AC_MSG_WARN(['missing' script is too old or missing])
 741 fi
 742 ])
 743
 744 # Helper functions for option handling.                     -*- Autoconf -*-
 745
 746 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
 747 #
 748 # This file is free software; the Free Software Foundation
 749 # gives unlimited permission to copy and/or distribute it,
 750 # with or without modifications, as long as this notice is preserved.
 751
 752 # _AM_MANGLE_OPTION(NAME)
 753 # -----------------------
 754 AC_DEFUN([_AM_MANGLE_OPTION],
 755 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 756
 757 # _AM_SET_OPTION(NAME)
 758 # --------------------
 759 # Set option NAME.  Presently that only means defining a flag for this option.
 760 AC_DEFUN([_AM_SET_OPTION],
 761 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 762
 763 # _AM_SET_OPTIONS(OPTIONS)
 764 # ------------------------
 765 # OPTIONS is a space-separated list of Automake options.
 766 AC_DEFUN([_AM_SET_OPTIONS],
 767 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 768
 769 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 770 # -------------------------------------------
 771 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 772 AC_DEFUN([_AM_IF_OPTION],
 773 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 774
 775 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 776
 777 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
 778 #
 779 # This file is free software; the Free Software Foundation
 780 # gives unlimited permission to copy and/or distribute it,
 781 # with or without modifications, as long as this notice is preserved.
 782
 783 # AM_SANITY_CHECK
 784 # ---------------
 785 AC_DEFUN([AM_SANITY_CHECK],
 786 [AC_MSG_CHECKING([whether build environment is sane])
 787 # Reject unsafe characters in $srcdir or the absolute working directory
 788 # name.  Accept space and tab only in the latter.
 789 am_lf='
 790 '
 791 case `pwd` in
 792   *[[\\\"\#\$\&\'\`$am_lf]]*)
 793     AC_MSG_ERROR([unsafe absolute working directory name]);;
 794 esac
 795 case $srcdir in
 796   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 797     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 798 esac
 799
 800 # Do 'set' in a subshell so we don't clobber the current shell's
 801 # arguments.  Must try -L first in case configure is actually a
 802 # symlink; some systems play weird games with the mod time of symlinks
 803 # (eg FreeBSD returns the mod time of the symlink's containing
 804 # directory).
 805 if (
 806    am_has_slept=no
 807    for am_try in 1 2; do
 808      echo "timestamp, slept: $am_has_slept" > conftest.file
 809      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 810      if test "$[*]" = "X"; then
 811         # -L didn't work.
 812         set X `ls -t "$srcdir/configure" conftest.file`
 813      fi
 814      if test "$[*]" != "X $srcdir/configure conftest.file" \
 815         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 816
 817         # If neither matched, then we have a broken ls.  This can happen
 818         # if, for instance, CONFIG_SHELL is bash and it inherits a
 819         # broken ls alias from the environment.  This has actually
 820         # happened.  Such a system could not be considered "sane".
 821         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 822   alias in your environment])
 823      fi
 824      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 825        break
 826      fi
 827      # Just in case.
 828      sleep 1
 829      am_has_slept=yes
 830    done
 831    test "$[2]" = conftest.file
 832    )
 833 then
 834    # Ok.
 835    :
 836 else
 837    AC_MSG_ERROR([newly created file is older than distributed files!
 838 Check your system clock])
 839 fi
 840 AC_MSG_RESULT([yes])
 841 # If we didn't sleep, we still need to ensure time stamps of config.status and
 842 # generated files are strictly newer.
 843 am_sleep_pid=
 844 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 845   ( sleep 1 ) &
 846   am_sleep_pid=$!
 847 fi
 848 AC_CONFIG_COMMANDS_PRE(
 849   [AC_MSG_CHECKING([that generated files are newer than configure])
 850    if test -n "$am_sleep_pid"; then
 851      # Hide warnings about reused PIDs.
 852      wait $am_sleep_pid 2>/dev/null
 853    fi
 854    AC_MSG_RESULT([done])])
 855 rm -f conftest.file
 856 ])
 857
 858 # Copyright (C) 2009-2013 Free Software Foundation, Inc.
 859 #
 860 # This file is free software; the Free Software Foundation
 861 # gives unlimited permission to copy and/or distribute it,
 862 # with or without modifications, as long as this notice is preserved.
 863
 864 # AM_SILENT_RULES([DEFAULT])
 865 # --------------------------
 866 # Enable less verbose build rules; with the default set to DEFAULT
 867 # ("yes" being less verbose, "no" or empty being verbose).
 868 AC_DEFUN([AM_SILENT_RULES],
 869 [AC_ARG_ENABLE([silent-rules], [dnl
 870 AS_HELP_STRING(
 871   [--enable-silent-rules],
 872   [less verbose build output (undo: "make V=1")])
 873 AS_HELP_STRING(
 874   [--disable-silent-rules],
 875   [verbose build output (undo: "make V=0")])dnl
 876 ])
 877 case $enable_silent_rules in @%:@ (((
 878   yes) AM_DEFAULT_VERBOSITY=0;;
 879    no) AM_DEFAULT_VERBOSITY=1;;
 880     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 881 esac
 882 dnl
 883 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 884 dnl do not support nested variable expansions.
 885 dnl See automake bug#9928 and bug#10237.
 886 am_make=${MAKE-make}
 887 AC_CACHE_CHECK([whether $am_make supports nested variables],
 888    [am_cv_make_support_nested_variables],
 889    [if AS_ECHO([['TRUE=$(BAR$(V))
 890 BAR0=false
 891 BAR1=true
 892 V=1
 893 am__doit:
 894         @$(TRUE)
 895 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 896   am_cv_make_support_nested_variables=yes
 897 else
 898   am_cv_make_support_nested_variables=no
 899 fi])
 900 if test $am_cv_make_support_nested_variables = yes; then
 901   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 902   AM_V='$(V)'
 903   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 904 else
 905   AM_V=$AM_DEFAULT_VERBOSITY
 906   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 907 fi
 908 AC_SUBST([AM_V])dnl
 909 AM_SUBST_NOTMAKE([AM_V])dnl
 910 AC_SUBST([AM_DEFAULT_V])dnl
 911 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 912 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 913 AM_BACKSLASH='\'
 914 AC_SUBST([AM_BACKSLASH])dnl
 915 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 916 ])
 917
 918 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
 919 #
 920 # This file is free software; the Free Software Foundation
 921 # gives unlimited permission to copy and/or distribute it,
 922 # with or without modifications, as long as this notice is preserved.
 923
 924 # AM_PROG_INSTALL_STRIP
 925 # ---------------------
 926 # One issue with vendor 'install' (even GNU) is that you can't
 927 # specify the program used to strip binaries.  This is especially
 928 # annoying in cross-compiling environments, where the build's strip
 929 # is unlikely to handle the host's binaries.
 930 # Fortunately install-sh will honor a STRIPPROG variable, so we
 931 # always use install-sh in "make install-strip", and initialize
 932 # STRIPPROG with the value of the STRIP variable (set by the user).
 933 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 934 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 935 # Installed binaries are usually stripped using 'strip' when the user
 936 # run "make install-strip".  However 'strip' might not be the right
 937 # tool to use in cross-compilation environments, therefore Automake
 938 # will honor the 'STRIP' environment variable to overrule this program.
 939 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 940 if test "$cross_compiling" != no; then
 941   AC_CHECK_TOOL([STRIP], [strip], :)
 942 fi
 943 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 944 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 945
 946 # Copyright (C) 2006-2013 Free Software Foundation, Inc.
 947 #
 948 # This file is free software; the Free Software Foundation
 949 # gives unlimited permission to copy and/or distribute it,
 950 # with or without modifications, as long as this notice is preserved.
 951
 952 # _AM_SUBST_NOTMAKE(VARIABLE)
 953 # ---------------------------
 954 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 955 # This macro is traced by Automake.
 956 AC_DEFUN([_AM_SUBST_NOTMAKE])
 957
 958 # AM_SUBST_NOTMAKE(VARIABLE)
 959 # --------------------------
 960 # Public sister of _AM_SUBST_NOTMAKE.
 961 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 962
 963 # Check how to create a tarball.                            -*- Autoconf -*-
 964
 965 # Copyright (C) 2004-2013 Free Software Foundation, Inc.
 966 #
 967 # This file is free software; the Free Software Foundation
 968 # gives unlimited permission to copy and/or distribute it,
 969 # with or without modifications, as long as this notice is preserved.
 970
 971 # _AM_PROG_TAR(FORMAT)
 972 # --------------------
 973 # Check how to create a tarball in format FORMAT.
 974 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 975 #
 976 # Substitute a variable $(am__tar) that is a command
 977 # writing to stdout a FORMAT-tarball containing the directory
 978 # $tardir.
 979 #     tardir=directory && $(am__tar) > result.tar
 980 #
 981 # Substitute a variable $(am__untar) that extract such
 982 # a tarball read from stdin.
 983 #     $(am__untar) < result.tar
 984 #
 985 AC_DEFUN([_AM_PROG_TAR],
 986 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 987 # in the wild :-(  We should find a proper way to deprecate it ...
 988 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 989
 990 # We'll loop over all known methods to create a tar archive until one works.
 991 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 992
 993 m4_if([$1], [v7],
 994   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 995
 996   [m4_case([$1],
 997     [ustar],
 998      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 999       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1000       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1001       # and bug#13588).
1002       am_max_uid=2097151 # 2^21 - 1
1003       am_max_gid=$am_max_uid
1004       # The $UID and $GID variables are not portable, so we need to resort
1005       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1006       # below are definitely unexpected, so allow the users to see them
1007       # (that is, avoid stderr redirection).
1008       am_uid=`id -u || echo unknown`
1009       am_gid=`id -g || echo unknown`
1010       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1011       if test $am_uid -le $am_max_uid; then
1012          AC_MSG_RESULT([yes])
1013       else
1014          AC_MSG_RESULT([no])
1015          _am_tools=none
1016       fi
1017       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1018       if test $am_gid -le $am_max_gid; then
1019          AC_MSG_RESULT([yes])
1020       else
1021         AC_MSG_RESULT([no])
1022         _am_tools=none
1023       fi],
1024
1025   [pax],
1026     [],
1027
1028   [m4_fatal([Unknown tar format])])
1029
1030   AC_MSG_CHECKING([how to create a $1 tar archive])
1031
1032   # Go ahead even if we have the value already cached.  We do so because we
1033   # need to set the values for the 'am__tar' and 'am__untar' variables.
1034   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1035
1036   for _am_tool in $_am_tools; do
1037     case $_am_tool in
1038     gnutar)
1039       for _am_tar in tar gnutar gtar; do
1040         AM_RUN_LOG([$_am_tar --version]) && break
1041       done
1042       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1043       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1044       am__untar="$_am_tar -xf -"
1045       ;;
1046     plaintar)
1047       # Must skip GNU tar: if it does not support --format= it doesn't create
1048       # ustar tarball either.
1049       (tar --version) >/dev/null 2>&1 && continue
1050       am__tar='tar chf - "$$tardir"'
1051       am__tar_='tar chf - "$tardir"'
1052       am__untar='tar xf -'
1053       ;;
1054     pax)
1055       am__tar='pax -L -x $1 -w "$$tardir"'
1056       am__tar_='pax -L -x $1 -w "$tardir"'
1057       am__untar='pax -r'
1058       ;;
1059     cpio)
1060       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1061       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1062       am__untar='cpio -i -H $1 -d'
1063       ;;
1064     none)
1065       am__tar=false
1066       am__tar_=false
1067       am__untar=false
1068       ;;
1069     esac
1070
1071     # If the value was cached, stop now.  We just wanted to have am__tar
1072     # and am__untar set.
1073     test -n "${am_cv_prog_tar_$1}" && break
1074
1075     # tar/untar a dummy directory, and stop if the command works.
1076     rm -rf conftest.dir
1077     mkdir conftest.dir
1078     echo GrepMe > conftest.dir/file
1079     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1080     rm -rf conftest.dir
1081     if test -s conftest.tar; then
1082       AM_RUN_LOG([$am__untar <conftest.tar])
1083       AM_RUN_LOG([cat conftest.dir/file])
1084       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1085     fi
1086   done
1087   rm -rf conftest.dir
1088
1089   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1090   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1091
1092 AC_SUBST([am__tar])
1093 AC_SUBST([am__untar])
1094 ]) # _AM_PROG_TAR
1095
1096 m4_include([scripts/libtool.m4])
1097 m4_include([scripts/ltoptions.m4])
1098 m4_include([scripts/ltsugar.m4])
1099 m4_include([scripts/ltversion.m4])
1100 m4_include([scripts/lt~obsolete.m4])