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1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
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3 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
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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
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23 # Copyright (C) 2002-2021 Free Software Foundation, Inc.
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530 fi
531 AC_SUBST([ETAGS])
532 if test -z "$CSCOPE"; then
533 CSCOPE=cscope
534 fi
535 AC_SUBST([CSCOPE])
536
537 AC_REQUIRE([AM_SILENT_RULES])dnl
538 dnl The testsuite driver may need to know about EXEEXT, so add the
539 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
540 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
541 AC_CONFIG_COMMANDS_PRE(dnl
542 [m4_provide_if([_AM_COMPILER_EXEEXT],
543 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
544
545 # POSIX will say in a future version that running "rm -f" with no argument
546 # is OK; and we want to be able to make that assumption in our Makefile
547 # recipes. So use an aggressive probe to check that the usage we want is
548 # actually supported "in the wild" to an acceptable degree.
549 # See automake bug#10828.
550 # To make any issue more visible, cause the running configure to be aborted
551 # by default if the 'rm' program in use doesn't match our expectations; the
552 # user can still override this though.
553 if rm -f && rm -fr && rm -rf; then : OK; else
554 cat >&2 <<'END'
555 Oops!
556
557 Your 'rm' program seems unable to run without file operands specified
558 on the command line, even when the '-f' option is present. This is contrary
559 to the behaviour of most rm programs out there, and not conforming with
560 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
561
562 Please tell bug-automake@gnu.org about your system, including the value
563 of your $PATH and any error possibly output before this message. This
564 can help us improve future automake versions.
565
566 END
567 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
568 echo 'Configuration will proceed anyway, since you have set the' >&2
569 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
570 echo >&2
571 else
572 cat >&2 <<'END'
573 Aborting the configuration process, to ensure you take notice of the issue.
574
575 You can download and install GNU coreutils to get an 'rm' implementation
576 that behaves properly: <https://www.gnu.org/software/coreutils/>.
577
578 If you want to complete the configuration process using your problematic
579 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
580 to "yes", and re-run configure.
581
582 END
583 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
584 fi
585 fi
586 dnl The trailing newline in this macro's definition is deliberate, for
587 dnl backward compatibility and to allow trailing 'dnl'-style comments
588 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
589 ])
590
591 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
592 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
593 dnl mangled by Autoconf and run in a shell conditional statement.
594 m4_define([_AC_COMPILER_EXEEXT],
595 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
596
597 # When config.status generates a header, we must update the stamp-h file.
598 # This file resides in the same directory as the config header
599 # that is generated. The stamp files are numbered to have different names.
600
601 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
602 # loop where config.status creates the headers, so we can generate
603 # our stamp files there.
604 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
605 [# Compute $1's index in $config_headers.
606 _am_arg=$1
607 _am_stamp_count=1
608 for _am_header in $config_headers :; do
609 case $_am_header in
610 $_am_arg | $_am_arg:* )
611 break ;;
612 * )
613 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
614 esac
615 done
616 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
617
618 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
619 #
620 # This file is free software; the Free Software Foundation
621 # gives unlimited permission to copy and/or distribute it,
622 # with or without modifications, as long as this notice is preserved.
623
624 # AM_PROG_INSTALL_SH
625 # ------------------
626 # Define $install_sh.
627 AC_DEFUN([AM_PROG_INSTALL_SH],
628 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
629 if test x"${install_sh+set}" != xset; then
630 case $am_aux_dir in
631 *\ * | *\ *)
632 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
633 *)
634 install_sh="\${SHELL} $am_aux_dir/install-sh"
635 esac
636 fi
637 AC_SUBST([install_sh])])
638
639 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
640 #
641 # This file is free software; the Free Software Foundation
642 # gives unlimited permission to copy and/or distribute it,
643 # with or without modifications, as long as this notice is preserved.
644
645 # Check whether the underlying file-system supports filenames
646 # with a leading dot. For instance MS-DOS doesn't.
647 AC_DEFUN([AM_SET_LEADING_DOT],
648 [rm -rf .tst 2>/dev/null
649 mkdir .tst 2>/dev/null
650 if test -d .tst; then
651 am__leading_dot=.
652 else
653 am__leading_dot=_
654 fi
655 rmdir .tst 2>/dev/null
656 AC_SUBST([am__leading_dot])])
657
658 # Check to see how 'make' treats includes. -*- Autoconf -*-
659
660 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
661 #
662 # This file is free software; the Free Software Foundation
663 # gives unlimited permission to copy and/or distribute it,
664 # with or without modifications, as long as this notice is preserved.
665
666 # AM_MAKE_INCLUDE()
667 # -----------------
668 # Check whether make has an 'include' directive that can support all
669 # the idioms we need for our automatic dependency tracking code.
670 AC_DEFUN([AM_MAKE_INCLUDE],
671 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
672 cat > confinc.mk << 'END'
673 am__doit:
674 @echo this is the am__doit target >confinc.out
675 .PHONY: am__doit
676 END
677 am__include="#"
678 am__quote=
679 # BSD make does it like this.
680 echo '.include "confinc.mk" # ignored' > confmf.BSD
681 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
682 echo 'include confinc.mk # ignored' > confmf.GNU
683 _am_result=no
684 for s in GNU BSD; do
685 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
686 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
687 ['0:this is the am__doit target'],
688 [AS_CASE([$s],
689 [BSD], [am__include='.include' am__quote='"'],
690 [am__include='include' am__quote=''])])
691 if test "$am__include" != "#"; then
692 _am_result="yes ($s style)"
693 break
694 fi
695 done
696 rm -f confinc.* confmf.*
697 AC_MSG_RESULT([${_am_result}])
698 AC_SUBST([am__include])])
699 AC_SUBST([am__quote])])
700
701 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
702
703 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
704 #
705 # This file is free software; the Free Software Foundation
706 # gives unlimited permission to copy and/or distribute it,
707 # with or without modifications, as long as this notice is preserved.
708
709 # AM_MISSING_PROG(NAME, PROGRAM)
710 # ------------------------------
711 AC_DEFUN([AM_MISSING_PROG],
712 [AC_REQUIRE([AM_MISSING_HAS_RUN])
713 $1=${$1-"${am_missing_run}$2"}
714 AC_SUBST($1)])
715
716 # AM_MISSING_HAS_RUN
717 # ------------------
718 # Define MISSING if not defined so far and test if it is modern enough.
719 # If it is, set am_missing_run to use it, otherwise, to nothing.
720 AC_DEFUN([AM_MISSING_HAS_RUN],
721 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
722 AC_REQUIRE_AUX_FILE([missing])dnl
723 if test x"${MISSING+set}" != xset; then
724 MISSING="\${SHELL} '$am_aux_dir/missing'"
725 fi
726 # Use eval to expand $SHELL
727 if eval "$MISSING --is-lightweight"; then
728 am_missing_run="$MISSING "
729 else
730 am_missing_run=
731 AC_MSG_WARN(['missing' script is too old or missing])
732 fi
733 ])
734
735 # Helper functions for option handling. -*- Autoconf -*-
736
737 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
738 #
739 # This file is free software; the Free Software Foundation
740 # gives unlimited permission to copy and/or distribute it,
741 # with or without modifications, as long as this notice is preserved.
742
743 # _AM_MANGLE_OPTION(NAME)
744 # -----------------------
745 AC_DEFUN([_AM_MANGLE_OPTION],
746 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
747
748 # _AM_SET_OPTION(NAME)
749 # --------------------
750 # Set option NAME. Presently that only means defining a flag for this option.
751 AC_DEFUN([_AM_SET_OPTION],
752 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
753
754 # _AM_SET_OPTIONS(OPTIONS)
755 # ------------------------
756 # OPTIONS is a space-separated list of Automake options.
757 AC_DEFUN([_AM_SET_OPTIONS],
758 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
759
760 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
761 # -------------------------------------------
762 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
763 AC_DEFUN([_AM_IF_OPTION],
764 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
765
766 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
767 #
768 # This file is free software; the Free Software Foundation
769 # gives unlimited permission to copy and/or distribute it,
770 # with or without modifications, as long as this notice is preserved.
771
772 # _AM_PROG_CC_C_O
773 # ---------------
774 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
775 # to automatically call this.
776 AC_DEFUN([_AM_PROG_CC_C_O],
777 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
778 AC_REQUIRE_AUX_FILE([compile])dnl
779 AC_LANG_PUSH([C])dnl
780 AC_CACHE_CHECK(
781 [whether $CC understands -c and -o together],
782 [am_cv_prog_cc_c_o],
783 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
784 # Make sure it works both with $CC and with simple cc.
785 # Following AC_PROG_CC_C_O, we do the test twice because some
786 # compilers refuse to overwrite an existing .o file with -o,
787 # though they will create one.
788 am_cv_prog_cc_c_o=yes
789 for am_i in 1 2; do
790 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
791 && test -f conftest2.$ac_objext; then
792 : OK
793 else
794 am_cv_prog_cc_c_o=no
795 break
796 fi
797 done
798 rm -f core conftest*
799 unset am_i])
800 if test "$am_cv_prog_cc_c_o" != yes; then
801 # Losing compiler, so override with the script.
802 # FIXME: It is wrong to rewrite CC.
803 # But if we don't then we get into trouble of one sort or another.
804 # A longer-term fix would be to have automake use am__CC in this case,
805 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
806 CC="$am_aux_dir/compile $CC"
807 fi
808 AC_LANG_POP([C])])
809
810 # For backward compatibility.
811 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
812
813 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
814 #
815 # This file is free software; the Free Software Foundation
816 # gives unlimited permission to copy and/or distribute it,
817 # with or without modifications, as long as this notice is preserved.
818
819 # AM_RUN_LOG(COMMAND)
820 # -------------------
821 # Run COMMAND, save the exit status in ac_status, and log it.
822 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
823 AC_DEFUN([AM_RUN_LOG],
824 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
825 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
826 ac_status=$?
827 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
828 (exit $ac_status); }])
829
830 # Check to make sure that the build environment is sane. -*- Autoconf -*-
831
832 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
833 #
834 # This file is free software; the Free Software Foundation
835 # gives unlimited permission to copy and/or distribute it,
836 # with or without modifications, as long as this notice is preserved.
837
838 # AM_SANITY_CHECK
839 # ---------------
840 AC_DEFUN([AM_SANITY_CHECK],
841 [AC_MSG_CHECKING([whether build environment is sane])
842 # Reject unsafe characters in $srcdir or the absolute working directory
843 # name. Accept space and tab only in the latter.
844 am_lf='
845 '
846 case `pwd` in
847 *[[\\\"\#\$\&\'\`$am_lf]]*)
848 AC_MSG_ERROR([unsafe absolute working directory name]);;
849 esac
850 case $srcdir in
851 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
852 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
853 esac
854
855 # Do 'set' in a subshell so we don't clobber the current shell's
856 # arguments. Must try -L first in case configure is actually a
857 # symlink; some systems play weird games with the mod time of symlinks
858 # (eg FreeBSD returns the mod time of the symlink's containing
859 # directory).
860 if (
861 am_has_slept=no
862 for am_try in 1 2; do
863 echo "timestamp, slept: $am_has_slept" > conftest.file
864 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
865 if test "$[*]" = "X"; then
866 # -L didn't work.
867 set X `ls -t "$srcdir/configure" conftest.file`
868 fi
869 if test "$[*]" != "X $srcdir/configure conftest.file" \
870 && test "$[*]" != "X conftest.file $srcdir/configure"; then
871
872 # If neither matched, then we have a broken ls. This can happen
873 # if, for instance, CONFIG_SHELL is bash and it inherits a
874 # broken ls alias from the environment. This has actually
875 # happened. Such a system could not be considered "sane".
876 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
877 alias in your environment])
878 fi
879 if test "$[2]" = conftest.file || test $am_try -eq 2; then
880 break
881 fi
882 # Just in case.
883 sleep 1
884 am_has_slept=yes
885 done
886 test "$[2]" = conftest.file
887 )
888 then
889 # Ok.
890 :
891 else
892 AC_MSG_ERROR([newly created file is older than distributed files!
893 Check your system clock])
894 fi
895 AC_MSG_RESULT([yes])
896 # If we didn't sleep, we still need to ensure time stamps of config.status and
897 # generated files are strictly newer.
898 am_sleep_pid=
899 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
900 ( sleep 1 ) &
901 am_sleep_pid=$!
902 fi
903 AC_CONFIG_COMMANDS_PRE(
904 [AC_MSG_CHECKING([that generated files are newer than configure])
905 if test -n "$am_sleep_pid"; then
906 # Hide warnings about reused PIDs.
907 wait $am_sleep_pid 2>/dev/null
908 fi
909 AC_MSG_RESULT([done])])
910 rm -f conftest.file
911 ])
912
913 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
914 #
915 # This file is free software; the Free Software Foundation
916 # gives unlimited permission to copy and/or distribute it,
917 # with or without modifications, as long as this notice is preserved.
918
919 # AM_SILENT_RULES([DEFAULT])
920 # --------------------------
921 # Enable less verbose build rules; with the default set to DEFAULT
922 # ("yes" being less verbose, "no" or empty being verbose).
923 AC_DEFUN([AM_SILENT_RULES],
924 [AC_ARG_ENABLE([silent-rules], [dnl
925 AS_HELP_STRING(
926 [--enable-silent-rules],
927 [less verbose build output (undo: "make V=1")])
928 AS_HELP_STRING(
929 [--disable-silent-rules],
930 [verbose build output (undo: "make V=0")])dnl
931 ])
932 case $enable_silent_rules in @%:@ (((
933 yes) AM_DEFAULT_VERBOSITY=0;;
934 no) AM_DEFAULT_VERBOSITY=1;;
935 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
936 esac
937 dnl
938 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
939 dnl do not support nested variable expansions.
940 dnl See automake bug#9928 and bug#10237.
941 am_make=${MAKE-make}
942 AC_CACHE_CHECK([whether $am_make supports nested variables],
943 [am_cv_make_support_nested_variables],
944 [if AS_ECHO([['TRUE=$(BAR$(V))
945 BAR0=false
946 BAR1=true
947 V=1
948 am__doit:
949 @$(TRUE)
950 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
951 am_cv_make_support_nested_variables=yes
952 else
953 am_cv_make_support_nested_variables=no
954 fi])
955 if test $am_cv_make_support_nested_variables = yes; then
956 dnl Using '$V' instead of '$(V)' breaks IRIX make.
957 AM_V='$(V)'
958 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
959 else
960 AM_V=$AM_DEFAULT_VERBOSITY
961 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
962 fi
963 AC_SUBST([AM_V])dnl
964 AM_SUBST_NOTMAKE([AM_V])dnl
965 AC_SUBST([AM_DEFAULT_V])dnl
966 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
967 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
968 AM_BACKSLASH='\'
969 AC_SUBST([AM_BACKSLASH])dnl
970 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
971 ])
972
973 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
974 #
975 # This file is free software; the Free Software Foundation
976 # gives unlimited permission to copy and/or distribute it,
977 # with or without modifications, as long as this notice is preserved.
978
979 # AM_PROG_INSTALL_STRIP
980 # ---------------------
981 # One issue with vendor 'install' (even GNU) is that you can't
982 # specify the program used to strip binaries. This is especially
983 # annoying in cross-compiling environments, where the build's strip
984 # is unlikely to handle the host's binaries.
985 # Fortunately install-sh will honor a STRIPPROG variable, so we
986 # always use install-sh in "make install-strip", and initialize
987 # STRIPPROG with the value of the STRIP variable (set by the user).
988 AC_DEFUN([AM_PROG_INSTALL_STRIP],
989 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
990 # Installed binaries are usually stripped using 'strip' when the user
991 # run "make install-strip". However 'strip' might not be the right
992 # tool to use in cross-compilation environments, therefore Automake
993 # will honor the 'STRIP' environment variable to overrule this program.
994 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
995 if test "$cross_compiling" != no; then
996 AC_CHECK_TOOL([STRIP], [strip], :)
997 fi
998 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
999 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1000
1001 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1002 #
1003 # This file is free software; the Free Software Foundation
1004 # gives unlimited permission to copy and/or distribute it,
1005 # with or without modifications, as long as this notice is preserved.
1006
1007 # _AM_SUBST_NOTMAKE(VARIABLE)
1008 # ---------------------------
1009 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1010 # This macro is traced by Automake.
1011 AC_DEFUN([_AM_SUBST_NOTMAKE])
1012
1013 # AM_SUBST_NOTMAKE(VARIABLE)
1014 # --------------------------
1015 # Public sister of _AM_SUBST_NOTMAKE.
1016 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1017
1018 # Check how to create a tarball. -*- Autoconf -*-
1019
1020 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1021 #
1022 # This file is free software; the Free Software Foundation
1023 # gives unlimited permission to copy and/or distribute it,
1024 # with or without modifications, as long as this notice is preserved.
1025
1026 # _AM_PROG_TAR(FORMAT)
1027 # --------------------
1028 # Check how to create a tarball in format FORMAT.
1029 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1030 #
1031 # Substitute a variable $(am__tar) that is a command
1032 # writing to stdout a FORMAT-tarball containing the directory
1033 # $tardir.
1034 # tardir=directory && $(am__tar) > result.tar
1035 #
1036 # Substitute a variable $(am__untar) that extract such
1037 # a tarball read from stdin.
1038 # $(am__untar) < result.tar
1039 #
1040 AC_DEFUN([_AM_PROG_TAR],
1041 [# Always define AMTAR for backward compatibility. Yes, it's still used
1042 # in the wild :-( We should find a proper way to deprecate it ...
1043 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1044
1045 # We'll loop over all known methods to create a tar archive until one works.
1046 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1047
1048 m4_if([$1], [v7],
1049 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1050
1051 [m4_case([$1],
1052 [ustar],
1053 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1054 # There is notably a 21 bits limit for the UID and the GID. In fact,
1055 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1056 # and bug#13588).
1057 am_max_uid=2097151 # 2^21 - 1
1058 am_max_gid=$am_max_uid
1059 # The $UID and $GID variables are not portable, so we need to resort
1060 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1061 # below are definitely unexpected, so allow the users to see them
1062 # (that is, avoid stderr redirection).
1063 am_uid=`id -u || echo unknown`
1064 am_gid=`id -g || echo unknown`
1065 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1066 if test $am_uid -le $am_max_uid; then
1067 AC_MSG_RESULT([yes])
1068 else
1069 AC_MSG_RESULT([no])
1070 _am_tools=none
1071 fi
1072 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1073 if test $am_gid -le $am_max_gid; then
1074 AC_MSG_RESULT([yes])
1075 else
1076 AC_MSG_RESULT([no])
1077 _am_tools=none
1078 fi],
1079
1080 [pax],
1081 [],
1082
1083 [m4_fatal([Unknown tar format])])
1084
1085 AC_MSG_CHECKING([how to create a $1 tar archive])
1086
1087 # Go ahead even if we have the value already cached. We do so because we
1088 # need to set the values for the 'am__tar' and 'am__untar' variables.
1089 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1090
1091 for _am_tool in $_am_tools; do
1092 case $_am_tool in
1093 gnutar)
1094 for _am_tar in tar gnutar gtar; do
1095 AM_RUN_LOG([$_am_tar --version]) && break
1096 done
1097 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1098 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1099 am__untar="$_am_tar -xf -"
1100 ;;
1101 plaintar)
1102 # Must skip GNU tar: if it does not support --format= it doesn't create
1103 # ustar tarball either.
1104 (tar --version) >/dev/null 2>&1 && continue
1105 am__tar='tar chf - "$$tardir"'
1106 am__tar_='tar chf - "$tardir"'
1107 am__untar='tar xf -'
1108 ;;
1109 pax)
1110 am__tar='pax -L -x $1 -w "$$tardir"'
1111 am__tar_='pax -L -x $1 -w "$tardir"'
1112 am__untar='pax -r'
1113 ;;
1114 cpio)
1115 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1116 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1117 am__untar='cpio -i -H $1 -d'
1118 ;;
1119 none)
1120 am__tar=false
1121 am__tar_=false
1122 am__untar=false
1123 ;;
1124 esac
1125
1126 # If the value was cached, stop now. We just wanted to have am__tar
1127 # and am__untar set.
1128 test -n "${am_cv_prog_tar_$1}" && break
1129
1130 # tar/untar a dummy directory, and stop if the command works.
1131 rm -rf conftest.dir
1132 mkdir conftest.dir
1133 echo GrepMe > conftest.dir/file
1134 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1135 rm -rf conftest.dir
1136 if test -s conftest.tar; then
1137 AM_RUN_LOG([$am__untar <conftest.tar])
1138 AM_RUN_LOG([cat conftest.dir/file])
1139 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1140 fi
1141 done
1142 rm -rf conftest.dir
1143
1144 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1145 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1146
1147 AC_SUBST([am__tar])
1148 AC_SUBST([am__untar])
1149 ]) # _AM_PROG_TAR
1150