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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
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525 CTAGS=ctags
526 fi
527 AC_SUBST([CTAGS])
528 if test -z "$ETAGS"; then
529 ETAGS=etags
530 fi
531 AC_SUBST([ETAGS])
532 if test -z "$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 # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
659 # From Jim Meyering
660
661 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
662 #
663 # This file is free software; the Free Software Foundation
664 # gives unlimited permission to copy and/or distribute it,
665 # with or without modifications, as long as this notice is preserved.
666
667 # AM_MAINTAINER_MODE([DEFAULT-MODE])
668 # ----------------------------------
669 # Control maintainer-specific portions of Makefiles.
670 # Default is to disable them, unless 'enable' is passed literally.
671 # For symmetry, 'disable' may be passed as well. Anyway, the user
672 # can override the default with the --enable/--disable switch.
673 AC_DEFUN([AM_MAINTAINER_MODE],
674 [m4_case(m4_default([$1], [disable]),
675 [enable], [m4_define([am_maintainer_other], [disable])],
676 [disable], [m4_define([am_maintainer_other], [enable])],
677 [m4_define([am_maintainer_other], [enable])
678 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
679 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
680 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
681 AC_ARG_ENABLE([maintainer-mode],
682 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
683 am_maintainer_other[ make rules and dependencies not useful
684 (and sometimes confusing) to the casual installer])],
685 [USE_MAINTAINER_MODE=$enableval],
686 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
687 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
688 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
689 MAINT=$MAINTAINER_MODE_TRUE
690 AC_SUBST([MAINT])dnl
691 ]
692 )
693
694 # Check to see how 'make' treats includes. -*- Autoconf -*-
695
696 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
697 #
698 # This file is free software; the Free Software Foundation
699 # gives unlimited permission to copy and/or distribute it,
700 # with or without modifications, as long as this notice is preserved.
701
702 # AM_MAKE_INCLUDE()
703 # -----------------
704 # Check whether make has an 'include' directive that can support all
705 # the idioms we need for our automatic dependency tracking code.
706 AC_DEFUN([AM_MAKE_INCLUDE],
707 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
708 cat > confinc.mk << 'END'
709 am__doit:
710 @echo this is the am__doit target >confinc.out
711 .PHONY: am__doit
712 END
713 am__include="#"
714 am__quote=
715 # BSD make does it like this.
716 echo '.include "confinc.mk" # ignored' > confmf.BSD
717 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
718 echo 'include confinc.mk # ignored' > confmf.GNU
719 _am_result=no
720 for s in GNU BSD; do
721 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
722 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
723 ['0:this is the am__doit target'],
724 [AS_CASE([$s],
725 [BSD], [am__include='.include' am__quote='"'],
726 [am__include='include' am__quote=''])])
727 if test "$am__include" != "#"; then
728 _am_result="yes ($s style)"
729 break
730 fi
731 done
732 rm -f confinc.* confmf.*
733 AC_MSG_RESULT([${_am_result}])
734 AC_SUBST([am__include])])
735 AC_SUBST([am__quote])])
736
737 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
738
739 # Copyright (C) 1997-2021 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.
744
745 # AM_MISSING_PROG(NAME, PROGRAM)
746 # ------------------------------
747 AC_DEFUN([AM_MISSING_PROG],
748 [AC_REQUIRE([AM_MISSING_HAS_RUN])
749 $1=${$1-"${am_missing_run}$2"}
750 AC_SUBST($1)])
751
752 # AM_MISSING_HAS_RUN
753 # ------------------
754 # Define MISSING if not defined so far and test if it is modern enough.
755 # If it is, set am_missing_run to use it, otherwise, to nothing.
756 AC_DEFUN([AM_MISSING_HAS_RUN],
757 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
758 AC_REQUIRE_AUX_FILE([missing])dnl
759 if test x"${MISSING+set}" != xset; then
760 MISSING="\${SHELL} '$am_aux_dir/missing'"
761 fi
762 # Use eval to expand $SHELL
763 if eval "$MISSING --is-lightweight"; then
764 am_missing_run="$MISSING "
765 else
766 am_missing_run=
767 AC_MSG_WARN(['missing' script is too old or missing])
768 fi
769 ])
770
771 # Helper functions for option handling. -*- Autoconf -*-
772
773 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
774 #
775 # This file is free software; the Free Software Foundation
776 # gives unlimited permission to copy and/or distribute it,
777 # with or without modifications, as long as this notice is preserved.
778
779 # _AM_MANGLE_OPTION(NAME)
780 # -----------------------
781 AC_DEFUN([_AM_MANGLE_OPTION],
782 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
783
784 # _AM_SET_OPTION(NAME)
785 # --------------------
786 # Set option NAME. Presently that only means defining a flag for this option.
787 AC_DEFUN([_AM_SET_OPTION],
788 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
789
790 # _AM_SET_OPTIONS(OPTIONS)
791 # ------------------------
792 # OPTIONS is a space-separated list of Automake options.
793 AC_DEFUN([_AM_SET_OPTIONS],
794 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
795
796 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
797 # -------------------------------------------
798 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
799 AC_DEFUN([_AM_IF_OPTION],
800 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
801
802 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
803 #
804 # This file is free software; the Free Software Foundation
805 # gives unlimited permission to copy and/or distribute it,
806 # with or without modifications, as long as this notice is preserved.
807
808 # _AM_PROG_CC_C_O
809 # ---------------
810 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
811 # to automatically call this.
812 AC_DEFUN([_AM_PROG_CC_C_O],
813 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
814 AC_REQUIRE_AUX_FILE([compile])dnl
815 AC_LANG_PUSH([C])dnl
816 AC_CACHE_CHECK(
817 [whether $CC understands -c and -o together],
818 [am_cv_prog_cc_c_o],
819 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
820 # Make sure it works both with $CC and with simple cc.
821 # Following AC_PROG_CC_C_O, we do the test twice because some
822 # compilers refuse to overwrite an existing .o file with -o,
823 # though they will create one.
824 am_cv_prog_cc_c_o=yes
825 for am_i in 1 2; do
826 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
827 && test -f conftest2.$ac_objext; then
828 : OK
829 else
830 am_cv_prog_cc_c_o=no
831 break
832 fi
833 done
834 rm -f core conftest*
835 unset am_i])
836 if test "$am_cv_prog_cc_c_o" != yes; then
837 # Losing compiler, so override with the script.
838 # FIXME: It is wrong to rewrite CC.
839 # But if we don't then we get into trouble of one sort or another.
840 # A longer-term fix would be to have automake use am__CC in this case,
841 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
842 CC="$am_aux_dir/compile $CC"
843 fi
844 AC_LANG_POP([C])])
845
846 # For backward compatibility.
847 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
848
849 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
850 #
851 # This file is free software; the Free Software Foundation
852 # gives unlimited permission to copy and/or distribute it,
853 # with or without modifications, as long as this notice is preserved.
854
855 # AM_RUN_LOG(COMMAND)
856 # -------------------
857 # Run COMMAND, save the exit status in ac_status, and log it.
858 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
859 AC_DEFUN([AM_RUN_LOG],
860 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
861 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
862 ac_status=$?
863 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
864 (exit $ac_status); }])
865
866 # Check to make sure that the build environment is sane. -*- Autoconf -*-
867
868 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
869 #
870 # This file is free software; the Free Software Foundation
871 # gives unlimited permission to copy and/or distribute it,
872 # with or without modifications, as long as this notice is preserved.
873
874 # AM_SANITY_CHECK
875 # ---------------
876 AC_DEFUN([AM_SANITY_CHECK],
877 [AC_MSG_CHECKING([whether build environment is sane])
878 # Reject unsafe characters in $srcdir or the absolute working directory
879 # name. Accept space and tab only in the latter.
880 am_lf='
881 '
882 case `pwd` in
883 *[[\\\"\#\$\&\'\`$am_lf]]*)
884 AC_MSG_ERROR([unsafe absolute working directory name]);;
885 esac
886 case $srcdir in
887 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
888 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
889 esac
890
891 # Do 'set' in a subshell so we don't clobber the current shell's
892 # arguments. Must try -L first in case configure is actually a
893 # symlink; some systems play weird games with the mod time of symlinks
894 # (eg FreeBSD returns the mod time of the symlink's containing
895 # directory).
896 if (
897 am_has_slept=no
898 for am_try in 1 2; do
899 echo "timestamp, slept: $am_has_slept" > conftest.file
900 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
901 if test "$[*]" = "X"; then
902 # -L didn't work.
903 set X `ls -t "$srcdir/configure" conftest.file`
904 fi
905 if test "$[*]" != "X $srcdir/configure conftest.file" \
906 && test "$[*]" != "X conftest.file $srcdir/configure"; then
907
908 # If neither matched, then we have a broken ls. This can happen
909 # if, for instance, CONFIG_SHELL is bash and it inherits a
910 # broken ls alias from the environment. This has actually
911 # happened. Such a system could not be considered "sane".
912 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
913 alias in your environment])
914 fi
915 if test "$[2]" = conftest.file || test $am_try -eq 2; then
916 break
917 fi
918 # Just in case.
919 sleep 1
920 am_has_slept=yes
921 done
922 test "$[2]" = conftest.file
923 )
924 then
925 # Ok.
926 :
927 else
928 AC_MSG_ERROR([newly created file is older than distributed files!
929 Check your system clock])
930 fi
931 AC_MSG_RESULT([yes])
932 # If we didn't sleep, we still need to ensure time stamps of config.status and
933 # generated files are strictly newer.
934 am_sleep_pid=
935 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
936 ( sleep 1 ) &
937 am_sleep_pid=$!
938 fi
939 AC_CONFIG_COMMANDS_PRE(
940 [AC_MSG_CHECKING([that generated files are newer than configure])
941 if test -n "$am_sleep_pid"; then
942 # Hide warnings about reused PIDs.
943 wait $am_sleep_pid 2>/dev/null
944 fi
945 AC_MSG_RESULT([done])])
946 rm -f conftest.file
947 ])
948
949 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
950 #
951 # This file is free software; the Free Software Foundation
952 # gives unlimited permission to copy and/or distribute it,
953 # with or without modifications, as long as this notice is preserved.
954
955 # AM_SILENT_RULES([DEFAULT])
956 # --------------------------
957 # Enable less verbose build rules; with the default set to DEFAULT
958 # ("yes" being less verbose, "no" or empty being verbose).
959 AC_DEFUN([AM_SILENT_RULES],
960 [AC_ARG_ENABLE([silent-rules], [dnl
961 AS_HELP_STRING(
962 [--enable-silent-rules],
963 [less verbose build output (undo: "make V=1")])
964 AS_HELP_STRING(
965 [--disable-silent-rules],
966 [verbose build output (undo: "make V=0")])dnl
967 ])
968 case $enable_silent_rules in @%:@ (((
969 yes) AM_DEFAULT_VERBOSITY=0;;
970 no) AM_DEFAULT_VERBOSITY=1;;
971 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
972 esac
973 dnl
974 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
975 dnl do not support nested variable expansions.
976 dnl See automake bug#9928 and bug#10237.
977 am_make=${MAKE-make}
978 AC_CACHE_CHECK([whether $am_make supports nested variables],
979 [am_cv_make_support_nested_variables],
980 [if AS_ECHO([['TRUE=$(BAR$(V))
981 BAR0=false
982 BAR1=true
983 V=1
984 am__doit:
985 @$(TRUE)
986 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
987 am_cv_make_support_nested_variables=yes
988 else
989 am_cv_make_support_nested_variables=no
990 fi])
991 if test $am_cv_make_support_nested_variables = yes; then
992 dnl Using '$V' instead of '$(V)' breaks IRIX make.
993 AM_V='$(V)'
994 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
995 else
996 AM_V=$AM_DEFAULT_VERBOSITY
997 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
998 fi
999 AC_SUBST([AM_V])dnl
1000 AM_SUBST_NOTMAKE([AM_V])dnl
1001 AC_SUBST([AM_DEFAULT_V])dnl
1002 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1003 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1004 AM_BACKSLASH='\'
1005 AC_SUBST([AM_BACKSLASH])dnl
1006 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1007 ])
1008
1009 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1010 #
1011 # This file is free software; the Free Software Foundation
1012 # gives unlimited permission to copy and/or distribute it,
1013 # with or without modifications, as long as this notice is preserved.
1014
1015 # AM_PROG_INSTALL_STRIP
1016 # ---------------------
1017 # One issue with vendor 'install' (even GNU) is that you can't
1018 # specify the program used to strip binaries. This is especially
1019 # annoying in cross-compiling environments, where the build's strip
1020 # is unlikely to handle the host's binaries.
1021 # Fortunately install-sh will honor a STRIPPROG variable, so we
1022 # always use install-sh in "make install-strip", and initialize
1023 # STRIPPROG with the value of the STRIP variable (set by the user).
1024 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1025 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1026 # Installed binaries are usually stripped using 'strip' when the user
1027 # run "make install-strip". However 'strip' might not be the right
1028 # tool to use in cross-compilation environments, therefore Automake
1029 # will honor the 'STRIP' environment variable to overrule this program.
1030 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1031 if test "$cross_compiling" != no; then
1032 AC_CHECK_TOOL([STRIP], [strip], :)
1033 fi
1034 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1035 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1036
1037 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1038 #
1039 # This file is free software; the Free Software Foundation
1040 # gives unlimited permission to copy and/or distribute it,
1041 # with or without modifications, as long as this notice is preserved.
1042
1043 # _AM_SUBST_NOTMAKE(VARIABLE)
1044 # ---------------------------
1045 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1046 # This macro is traced by Automake.
1047 AC_DEFUN([_AM_SUBST_NOTMAKE])
1048
1049 # AM_SUBST_NOTMAKE(VARIABLE)
1050 # --------------------------
1051 # Public sister of _AM_SUBST_NOTMAKE.
1052 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1053
1054 # Check how to create a tarball. -*- Autoconf -*-
1055
1056 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1057 #
1058 # This file is free software; the Free Software Foundation
1059 # gives unlimited permission to copy and/or distribute it,
1060 # with or without modifications, as long as this notice is preserved.
1061
1062 # _AM_PROG_TAR(FORMAT)
1063 # --------------------
1064 # Check how to create a tarball in format FORMAT.
1065 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1066 #
1067 # Substitute a variable $(am__tar) that is a command
1068 # writing to stdout a FORMAT-tarball containing the directory
1069 # $tardir.
1070 # tardir=directory && $(am__tar) > result.tar
1071 #
1072 # Substitute a variable $(am__untar) that extract such
1073 # a tarball read from stdin.
1074 # $(am__untar) < result.tar
1075 #
1076 AC_DEFUN([_AM_PROG_TAR],
1077 [# Always define AMTAR for backward compatibility. Yes, it's still used
1078 # in the wild :-( We should find a proper way to deprecate it ...
1079 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1080
1081 # We'll loop over all known methods to create a tar archive until one works.
1082 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1083
1084 m4_if([$1], [v7],
1085 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1086
1087 [m4_case([$1],
1088 [ustar],
1089 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1090 # There is notably a 21 bits limit for the UID and the GID. In fact,
1091 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1092 # and bug#13588).
1093 am_max_uid=2097151 # 2^21 - 1
1094 am_max_gid=$am_max_uid
1095 # The $UID and $GID variables are not portable, so we need to resort
1096 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1097 # below are definitely unexpected, so allow the users to see them
1098 # (that is, avoid stderr redirection).
1099 am_uid=`id -u || echo unknown`
1100 am_gid=`id -g || echo unknown`
1101 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1102 if test $am_uid -le $am_max_uid; then
1103 AC_MSG_RESULT([yes])
1104 else
1105 AC_MSG_RESULT([no])
1106 _am_tools=none
1107 fi
1108 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1109 if test $am_gid -le $am_max_gid; then
1110 AC_MSG_RESULT([yes])
1111 else
1112 AC_MSG_RESULT([no])
1113 _am_tools=none
1114 fi],
1115
1116 [pax],
1117 [],
1118
1119 [m4_fatal([Unknown tar format])])
1120
1121 AC_MSG_CHECKING([how to create a $1 tar archive])
1122
1123 # Go ahead even if we have the value already cached. We do so because we
1124 # need to set the values for the 'am__tar' and 'am__untar' variables.
1125 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1126
1127 for _am_tool in $_am_tools; do
1128 case $_am_tool in
1129 gnutar)
1130 for _am_tar in tar gnutar gtar; do
1131 AM_RUN_LOG([$_am_tar --version]) && break
1132 done
1133 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1134 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1135 am__untar="$_am_tar -xf -"
1136 ;;
1137 plaintar)
1138 # Must skip GNU tar: if it does not support --format= it doesn't create
1139 # ustar tarball either.
1140 (tar --version) >/dev/null 2>&1 && continue
1141 am__tar='tar chf - "$$tardir"'
1142 am__tar_='tar chf - "$tardir"'
1143 am__untar='tar xf -'
1144 ;;
1145 pax)
1146 am__tar='pax -L -x $1 -w "$$tardir"'
1147 am__tar_='pax -L -x $1 -w "$tardir"'
1148 am__untar='pax -r'
1149 ;;
1150 cpio)
1151 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1152 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1153 am__untar='cpio -i -H $1 -d'
1154 ;;
1155 none)
1156 am__tar=false
1157 am__tar_=false
1158 am__untar=false
1159 ;;
1160 esac
1161
1162 # If the value was cached, stop now. We just wanted to have am__tar
1163 # and am__untar set.
1164 test -n "${am_cv_prog_tar_$1}" && break
1165
1166 # tar/untar a dummy directory, and stop if the command works.
1167 rm -rf conftest.dir
1168 mkdir conftest.dir
1169 echo GrepMe > conftest.dir/file
1170 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1171 rm -rf conftest.dir
1172 if test -s conftest.tar; then
1173 AM_RUN_LOG([$am__untar <conftest.tar])
1174 AM_RUN_LOG([cat conftest.dir/file])
1175 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1176 fi
1177 done
1178 rm -rf conftest.dir
1179
1180 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1181 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1182
1183 AC_SUBST([am__tar])
1184 AC_SUBST([am__untar])
1185 ]) # _AM_PROG_TAR
1186
1187 m4_include([m4/ax_blas.m4])
1188 m4_include([m4/ax_lapack.m4])
1189 m4_include([m4/libtool.m4])
1190 m4_include([m4/ltoptions.m4])
1191 m4_include([m4/ltsugar.m4])
1192 m4_include([m4/ltversion.m4])
1193 m4_include([m4/lt~obsolete.m4])