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view aclocal.m4 @ 264:1e5e457dea18
comments and a small refactoring
| author | markus schnalke <meillo@marmaro.de> |
|---|---|
| date | Fri, 03 Dec 2010 10:43:38 -0300 |
| parents | 9cb4031fa5e0 |
| children | e3e1a030c703 |
line source
1 # generated automatically by aclocal 1.11.1 -*- Autoconf -*-
3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 # 2005, 2006, 2007, 2008, 2009 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.
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.
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22 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
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25 # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
26 #
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28 # it under the terms of the GNU General Public License as published by
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32 # This program is distributed in the hope that it will be useful, but
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35 # General Public License for more details.
36 #
37 # You should have received a copy of the GNU General Public License
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39 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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180 # Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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574 # serial 8
576 # AM_CONFIG_HEADER is obsolete. It has been replaced by AC_CONFIG_HEADERS.
577 AU_DEFUN([AM_CONFIG_HEADER], [AC_CONFIG_HEADERS($@)])
579 # Do all the work for Automake. -*- Autoconf -*-
581 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
582 # 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
583 #
584 # This file is free software; the Free Software Foundation
585 # gives unlimited permission to copy and/or distribute it,
586 # with or without modifications, as long as this notice is preserved.
588 # serial 16
590 # This macro actually does too much. Some checks are only needed if
591 # your package does certain things. But this isn't really a big deal.
593 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
594 # AM_INIT_AUTOMAKE([OPTIONS])
595 # -----------------------------------------------
596 # The call with PACKAGE and VERSION arguments is the old style
597 # call (pre autoconf-2.50), which is being phased out. PACKAGE
598 # and VERSION should now be passed to AC_INIT and removed from
599 # the call to AM_INIT_AUTOMAKE.
600 # We support both call styles for the transition. After
601 # the next Automake release, Autoconf can make the AC_INIT
602 # arguments mandatory, and then we can depend on a new Autoconf
603 # release and drop the old call support.
604 AC_DEFUN([AM_INIT_AUTOMAKE],
605 [AC_PREREQ([2.62])dnl
606 dnl Autoconf wants to disallow AM_ names. We explicitly allow
607 dnl the ones we care about.
608 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
609 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
610 AC_REQUIRE([AC_PROG_INSTALL])dnl
611 if test "`cd $srcdir && pwd`" != "`pwd`"; then
612 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
613 # is not polluted with repeated "-I."
614 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
615 # test to see if srcdir already configured
616 if test -f $srcdir/config.status; then
617 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
618 fi
619 fi
621 # test whether we have cygpath
622 if test -z "$CYGPATH_W"; then
623 if (cygpath --version) >/dev/null 2>/dev/null; then
624 CYGPATH_W='cygpath -w'
625 else
626 CYGPATH_W=echo
627 fi
628 fi
629 AC_SUBST([CYGPATH_W])
631 # Define the identity of the package.
632 dnl Distinguish between old-style and new-style calls.
633 m4_ifval([$2],
634 [m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
635 AC_SUBST([PACKAGE], [$1])dnl
636 AC_SUBST([VERSION], [$2])],
637 [_AM_SET_OPTIONS([$1])dnl
638 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
639 m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
640 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
641 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
642 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
644 _AM_IF_OPTION([no-define],,
645 [AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
646 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
648 # Some tools Automake needs.
649 AC_REQUIRE([AM_SANITY_CHECK])dnl
650 AC_REQUIRE([AC_ARG_PROGRAM])dnl
651 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
652 AM_MISSING_PROG(AUTOCONF, autoconf)
653 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
654 AM_MISSING_PROG(AUTOHEADER, autoheader)
655 AM_MISSING_PROG(MAKEINFO, makeinfo)
656 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
657 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
658 AC_REQUIRE([AM_PROG_MKDIR_P])dnl
659 # We need awk for the "check" target. The system "awk" is bad on
660 # some platforms.
661 AC_REQUIRE([AC_PROG_AWK])dnl
662 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
663 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
664 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
665 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
666 [_AM_PROG_TAR([v7])])])
667 _AM_IF_OPTION([no-dependencies],,
668 [AC_PROVIDE_IFELSE([AC_PROG_CC],
669 [_AM_DEPENDENCIES(CC)],
670 [define([AC_PROG_CC],
671 defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
672 AC_PROVIDE_IFELSE([AC_PROG_CXX],
673 [_AM_DEPENDENCIES(CXX)],
674 [define([AC_PROG_CXX],
675 defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
676 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
677 [_AM_DEPENDENCIES(OBJC)],
678 [define([AC_PROG_OBJC],
679 defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
680 ])
681 _AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
682 dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
683 dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This macro
684 dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
685 AC_CONFIG_COMMANDS_PRE(dnl
686 [m4_provide_if([_AM_COMPILER_EXEEXT],
687 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
688 ])
690 dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
691 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
692 dnl mangled by Autoconf and run in a shell conditional statement.
693 m4_define([_AC_COMPILER_EXEEXT],
694 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
697 # When config.status generates a header, we must update the stamp-h file.
698 # This file resides in the same directory as the config header
699 # that is generated. The stamp files are numbered to have different names.
701 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
702 # loop where config.status creates the headers, so we can generate
703 # our stamp files there.
704 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
705 [# Compute $1's index in $config_headers.
706 _am_arg=$1
707 _am_stamp_count=1
708 for _am_header in $config_headers :; do
709 case $_am_header in
710 $_am_arg | $_am_arg:* )
711 break ;;
712 * )
713 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
714 esac
715 done
716 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
718 # Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc.
719 #
720 # This file is free software; the Free Software Foundation
721 # gives unlimited permission to copy and/or distribute it,
722 # with or without modifications, as long as this notice is preserved.
724 # AM_PROG_INSTALL_SH
725 # ------------------
726 # Define $install_sh.
727 AC_DEFUN([AM_PROG_INSTALL_SH],
728 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
729 if test x"${install_sh}" != xset; then
730 case $am_aux_dir in
731 *\ * | *\ *)
732 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
733 *)
734 install_sh="\${SHELL} $am_aux_dir/install-sh"
735 esac
736 fi
737 AC_SUBST(install_sh)])
739 # Copyright (C) 2003, 2005 Free Software Foundation, Inc.
740 #
741 # This file is free software; the Free Software Foundation
742 # gives unlimited permission to copy and/or distribute it,
743 # with or without modifications, as long as this notice is preserved.
745 # serial 2
747 # Check whether the underlying file-system supports filenames
748 # with a leading dot. For instance MS-DOS doesn't.
749 AC_DEFUN([AM_SET_LEADING_DOT],
750 [rm -rf .tst 2>/dev/null
751 mkdir .tst 2>/dev/null
752 if test -d .tst; then
753 am__leading_dot=.
754 else
755 am__leading_dot=_
756 fi
757 rmdir .tst 2>/dev/null
758 AC_SUBST([am__leading_dot])])
760 # Check to see how 'make' treats includes. -*- Autoconf -*-
762 # Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
763 #
764 # This file is free software; the Free Software Foundation
765 # gives unlimited permission to copy and/or distribute it,
766 # with or without modifications, as long as this notice is preserved.
768 # serial 4
770 # AM_MAKE_INCLUDE()
771 # -----------------
772 # Check to see how make treats includes.
773 AC_DEFUN([AM_MAKE_INCLUDE],
774 [am_make=${MAKE-make}
775 cat > confinc << 'END'
776 am__doit:
777 @echo this is the am__doit target
778 .PHONY: am__doit
779 END
780 # If we don't find an include directive, just comment out the code.
781 AC_MSG_CHECKING([for style of include used by $am_make])
782 am__include="#"
783 am__quote=
784 _am_result=none
785 # First try GNU make style include.
786 echo "include confinc" > confmf
787 # Ignore all kinds of additional output from `make'.
788 case `$am_make -s -f confmf 2> /dev/null` in #(
789 *the\ am__doit\ target*)
790 am__include=include
791 am__quote=
792 _am_result=GNU
793 ;;
794 esac
795 # Now try BSD make style include.
796 if test "$am__include" = "#"; then
797 echo '.include "confinc"' > confmf
798 case `$am_make -s -f confmf 2> /dev/null` in #(
799 *the\ am__doit\ target*)
800 am__include=.include
801 am__quote="\""
802 _am_result=BSD
803 ;;
804 esac
805 fi
806 AC_SUBST([am__include])
807 AC_SUBST([am__quote])
808 AC_MSG_RESULT([$_am_result])
809 rm -f confinc confmf
810 ])
812 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
814 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
815 # Free Software Foundation, Inc.
816 #
817 # This file is free software; the Free Software Foundation
818 # gives unlimited permission to copy and/or distribute it,
819 # with or without modifications, as long as this notice is preserved.
821 # serial 6
823 # AM_MISSING_PROG(NAME, PROGRAM)
824 # ------------------------------
825 AC_DEFUN([AM_MISSING_PROG],
826 [AC_REQUIRE([AM_MISSING_HAS_RUN])
827 $1=${$1-"${am_missing_run}$2"}
828 AC_SUBST($1)])
831 # AM_MISSING_HAS_RUN
832 # ------------------
833 # Define MISSING if not defined so far and test if it supports --run.
834 # If it does, set am_missing_run to use it, otherwise, to nothing.
835 AC_DEFUN([AM_MISSING_HAS_RUN],
836 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
837 AC_REQUIRE_AUX_FILE([missing])dnl
838 if test x"${MISSING+set}" != xset; then
839 case $am_aux_dir in
840 *\ * | *\ *)
841 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
842 *)
843 MISSING="\${SHELL} $am_aux_dir/missing" ;;
844 esac
845 fi
846 # Use eval to expand $SHELL
847 if eval "$MISSING --run true"; then
848 am_missing_run="$MISSING --run "
849 else
850 am_missing_run=
851 AC_MSG_WARN([`missing' script is too old or missing])
852 fi
853 ])
855 # Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
856 #
857 # This file is free software; the Free Software Foundation
858 # gives unlimited permission to copy and/or distribute it,
859 # with or without modifications, as long as this notice is preserved.
861 # AM_PROG_MKDIR_P
862 # ---------------
863 # Check for `mkdir -p'.
864 AC_DEFUN([AM_PROG_MKDIR_P],
865 [AC_PREREQ([2.60])dnl
866 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
867 dnl Automake 1.8 to 1.9.6 used to define mkdir_p. We now use MKDIR_P,
868 dnl while keeping a definition of mkdir_p for backward compatibility.
869 dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
870 dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
871 dnl Makefile.ins that do not define MKDIR_P, so we do our own
872 dnl adjustment using top_builddir (which is defined more often than
873 dnl MKDIR_P).
874 AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
875 case $mkdir_p in
876 [[\\/$]]* | ?:[[\\/]]*) ;;
877 */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
878 esac
879 ])
881 # Helper functions for option handling. -*- Autoconf -*-
883 # Copyright (C) 2001, 2002, 2003, 2005, 2008 Free Software Foundation, Inc.
884 #
885 # This file is free software; the Free Software Foundation
886 # gives unlimited permission to copy and/or distribute it,
887 # with or without modifications, as long as this notice is preserved.
889 # serial 4
891 # _AM_MANGLE_OPTION(NAME)
892 # -----------------------
893 AC_DEFUN([_AM_MANGLE_OPTION],
894 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
896 # _AM_SET_OPTION(NAME)
897 # ------------------------------
898 # Set option NAME. Presently that only means defining a flag for this option.
899 AC_DEFUN([_AM_SET_OPTION],
900 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
902 # _AM_SET_OPTIONS(OPTIONS)
903 # ----------------------------------
904 # OPTIONS is a space-separated list of Automake options.
905 AC_DEFUN([_AM_SET_OPTIONS],
906 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
908 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
909 # -------------------------------------------
910 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
911 AC_DEFUN([_AM_IF_OPTION],
912 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
914 # Check to make sure that the build environment is sane. -*- Autoconf -*-
916 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
917 # Free Software Foundation, Inc.
918 #
919 # This file is free software; the Free Software Foundation
920 # gives unlimited permission to copy and/or distribute it,
921 # with or without modifications, as long as this notice is preserved.
923 # serial 5
925 # AM_SANITY_CHECK
926 # ---------------
927 AC_DEFUN([AM_SANITY_CHECK],
928 [AC_MSG_CHECKING([whether build environment is sane])
929 # Just in case
930 sleep 1
931 echo timestamp > conftest.file
932 # Reject unsafe characters in $srcdir or the absolute working directory
933 # name. Accept space and tab only in the latter.
934 am_lf='
935 '
936 case `pwd` in
937 *[[\\\"\#\$\&\'\`$am_lf]]*)
938 AC_MSG_ERROR([unsafe absolute working directory name]);;
939 esac
940 case $srcdir in
941 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
942 AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
943 esac
945 # Do `set' in a subshell so we don't clobber the current shell's
946 # arguments. Must try -L first in case configure is actually a
947 # symlink; some systems play weird games with the mod time of symlinks
948 # (eg FreeBSD returns the mod time of the symlink's containing
949 # directory).
950 if (
951 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
952 if test "$[*]" = "X"; then
953 # -L didn't work.
954 set X `ls -t "$srcdir/configure" conftest.file`
955 fi
956 rm -f conftest.file
957 if test "$[*]" != "X $srcdir/configure conftest.file" \
958 && test "$[*]" != "X conftest.file $srcdir/configure"; then
960 # If neither matched, then we have a broken ls. This can happen
961 # if, for instance, CONFIG_SHELL is bash and it inherits a
962 # broken ls alias from the environment. This has actually
963 # happened. Such a system could not be considered "sane".
964 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
965 alias in your environment])
966 fi
968 test "$[2]" = conftest.file
969 )
970 then
971 # Ok.
972 :
973 else
974 AC_MSG_ERROR([newly created file is older than distributed files!
975 Check your system clock])
976 fi
977 AC_MSG_RESULT(yes)])
979 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
980 #
981 # This file is free software; the Free Software Foundation
982 # gives unlimited permission to copy and/or distribute it,
983 # with or without modifications, as long as this notice is preserved.
985 # AM_PROG_INSTALL_STRIP
986 # ---------------------
987 # One issue with vendor `install' (even GNU) is that you can't
988 # specify the program used to strip binaries. This is especially
989 # annoying in cross-compiling environments, where the build's strip
990 # is unlikely to handle the host's binaries.
991 # Fortunately install-sh will honor a STRIPPROG variable, so we
992 # always use install-sh in `make install-strip', and initialize
993 # STRIPPROG with the value of the STRIP variable (set by the user).
994 AC_DEFUN([AM_PROG_INSTALL_STRIP],
995 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
996 # Installed binaries are usually stripped using `strip' when the user
997 # run `make install-strip'. However `strip' might not be the right
998 # tool to use in cross-compilation environments, therefore Automake
999 # will honor the `STRIP' environment variable to overrule this program.
1000 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
1001 if test "$cross_compiling" != no; then
1002 AC_CHECK_TOOL([STRIP], [strip], :)
1003 fi
1004 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1005 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1007 # Copyright (C) 2006, 2008 Free Software Foundation, Inc.
1008 #
1009 # This file is free software; the Free Software Foundation
1010 # gives unlimited permission to copy and/or distribute it,
1011 # with or without modifications, as long as this notice is preserved.
1013 # serial 2
1015 # _AM_SUBST_NOTMAKE(VARIABLE)
1016 # ---------------------------
1017 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1018 # This macro is traced by Automake.
1019 AC_DEFUN([_AM_SUBST_NOTMAKE])
1021 # AM_SUBST_NOTMAKE(VARIABLE)
1022 # ---------------------------
1023 # Public sister of _AM_SUBST_NOTMAKE.
1024 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1026 # Check how to create a tarball. -*- Autoconf -*-
1028 # Copyright (C) 2004, 2005 Free Software Foundation, Inc.
1029 #
1030 # This file is free software; the Free Software Foundation
1031 # gives unlimited permission to copy and/or distribute it,
1032 # with or without modifications, as long as this notice is preserved.
1034 # serial 2
1036 # _AM_PROG_TAR(FORMAT)
1037 # --------------------
1038 # Check how to create a tarball in format FORMAT.
1039 # FORMAT should be one of `v7', `ustar', or `pax'.
1040 #
1041 # Substitute a variable $(am__tar) that is a command
1042 # writing to stdout a FORMAT-tarball containing the directory
1043 # $tardir.
1044 # tardir=directory && $(am__tar) > result.tar
1045 #
1046 # Substitute a variable $(am__untar) that extract such
1047 # a tarball read from stdin.
1048 # $(am__untar) < result.tar
1049 AC_DEFUN([_AM_PROG_TAR],
1050 [# Always define AMTAR for backward compatibility.
1051 AM_MISSING_PROG([AMTAR], [tar])
1052 m4_if([$1], [v7],
1053 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
1054 [m4_case([$1], [ustar],, [pax],,
1055 [m4_fatal([Unknown tar format])])
1056 AC_MSG_CHECKING([how to create a $1 tar archive])
1057 # Loop over all known methods to create a tar archive until one works.
1058 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1059 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1060 # Do not fold the above two line into one, because Tru64 sh and
1061 # Solaris sh will not grok spaces in the rhs of `-'.
1062 for _am_tool in $_am_tools
1063 do
1064 case $_am_tool in
1065 gnutar)
1066 for _am_tar in tar gnutar gtar;
1067 do
1068 AM_RUN_LOG([$_am_tar --version]) && break
1069 done
1070 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1071 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1072 am__untar="$_am_tar -xf -"
1073 ;;
1074 plaintar)
1075 # Must skip GNU tar: if it does not support --format= it doesn't create
1076 # ustar tarball either.
1077 (tar --version) >/dev/null 2>&1 && continue
1078 am__tar='tar chf - "$$tardir"'
1079 am__tar_='tar chf - "$tardir"'
1080 am__untar='tar xf -'
1081 ;;
1082 pax)
1083 am__tar='pax -L -x $1 -w "$$tardir"'
1084 am__tar_='pax -L -x $1 -w "$tardir"'
1085 am__untar='pax -r'
1086 ;;
1087 cpio)
1088 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1089 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1090 am__untar='cpio -i -H $1 -d'
1091 ;;
1092 none)
1093 am__tar=false
1094 am__tar_=false
1095 am__untar=false
1096 ;;
1097 esac
1099 # If the value was cached, stop now. We just wanted to have am__tar
1100 # and am__untar set.
1101 test -n "${am_cv_prog_tar_$1}" && break
1103 # tar/untar a dummy directory, and stop if the command works
1104 rm -rf conftest.dir
1105 mkdir conftest.dir
1106 echo GrepMe > conftest.dir/file
1107 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1108 rm -rf conftest.dir
1109 if test -s conftest.tar; then
1110 AM_RUN_LOG([$am__untar <conftest.tar])
1111 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1112 fi
1113 done
1114 rm -rf conftest.dir
1116 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1117 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1118 AC_SUBST([am__tar])
1119 AC_SUBST([am__untar])
1120 ]) # _AM_PROG_TAR