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1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
2
3 # Copyright (C) 1996-2021 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.
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23 # Copyright (C) 2002-2021 Free Software Foundation, Inc.
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25 # This file is free software; the Free Software Foundation
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539 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
540 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
541 [_AM_PROG_TAR([v7])])])
542 _AM_IF_OPTION([no-dependencies],,
543 [AC_PROVIDE_IFELSE([AC_PROG_CC],
544 [_AM_DEPENDENCIES([CC])],
545 [m4_define([AC_PROG_CC],
546 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
547 AC_PROVIDE_IFELSE([AC_PROG_CXX],
548 [_AM_DEPENDENCIES([CXX])],
549 [m4_define([AC_PROG_CXX],
550 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
551 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
552 [_AM_DEPENDENCIES([OBJC])],
553 [m4_define([AC_PROG_OBJC],
554 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
555 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
556 [_AM_DEPENDENCIES([OBJCXX])],
557 [m4_define([AC_PROG_OBJCXX],
558 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
559 ])
560 # Variables for tags utilities; see am/tags.am
561 if test -z "$CTAGS"; then
562 CTAGS=ctags
563 fi
564 AC_SUBST([CTAGS])
565 if test -z "$ETAGS"; then
566 ETAGS=etags
567 fi
568 AC_SUBST([ETAGS])
569 if test -z "$CSCOPE"; then
570 CSCOPE=cscope
571 fi
572 AC_SUBST([CSCOPE])
573
574 AC_REQUIRE([AM_SILENT_RULES])dnl
575 dnl The testsuite driver may need to know about EXEEXT, so add the
576 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
577 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
578 AC_CONFIG_COMMANDS_PRE(dnl
579 [m4_provide_if([_AM_COMPILER_EXEEXT],
580 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
581
582 # POSIX will say in a future version that running "rm -f" with no argument
583 # is OK; and we want to be able to make that assumption in our Makefile
584 # recipes. So use an aggressive probe to check that the usage we want is
585 # actually supported "in the wild" to an acceptable degree.
586 # See automake bug#10828.
587 # To make any issue more visible, cause the running configure to be aborted
588 # by default if the 'rm' program in use doesn't match our expectations; the
589 # user can still override this though.
590 if rm -f && rm -fr && rm -rf; then : OK; else
591 cat >&2 <<'END'
592 Oops!
593
594 Your 'rm' program seems unable to run without file operands specified
595 on the command line, even when the '-f' option is present. This is contrary
596 to the behaviour of most rm programs out there, and not conforming with
597 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
598
599 Please tell bug-automake@gnu.org about your system, including the value
600 of your $PATH and any error possibly output before this message. This
601 can help us improve future automake versions.
602
603 END
604 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
605 echo 'Configuration will proceed anyway, since you have set the' >&2
606 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
607 echo >&2
608 else
609 cat >&2 <<'END'
610 Aborting the configuration process, to ensure you take notice of the issue.
611
612 You can download and install GNU coreutils to get an 'rm' implementation
613 that behaves properly: <https://www.gnu.org/software/coreutils/>.
614
615 If you want to complete the configuration process using your problematic
616 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
617 to "yes", and re-run configure.
618
619 END
620 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
621 fi
622 fi
623 dnl The trailing newline in this macro's definition is deliberate, for
624 dnl backward compatibility and to allow trailing 'dnl'-style comments
625 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
626 ])
627
628 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
629 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
630 dnl mangled by Autoconf and run in a shell conditional statement.
631 m4_define([_AC_COMPILER_EXEEXT],
632 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
633
634 # When config.status generates a header, we must update the stamp-h file.
635 # This file resides in the same directory as the config header
636 # that is generated. The stamp files are numbered to have different names.
637
638 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
639 # loop where config.status creates the headers, so we can generate
640 # our stamp files there.
641 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
642 [# Compute $1's index in $config_headers.
643 _am_arg=$1
644 _am_stamp_count=1
645 for _am_header in $config_headers :; do
646 case $_am_header in
647 $_am_arg | $_am_arg:* )
648 break ;;
649 * )
650 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
651 esac
652 done
653 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
654
655 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
656 #
657 # This file is free software; the Free Software Foundation
658 # gives unlimited permission to copy and/or distribute it,
659 # with or without modifications, as long as this notice is preserved.
660
661 # AM_PROG_INSTALL_SH
662 # ------------------
663 # Define $install_sh.
664 AC_DEFUN([AM_PROG_INSTALL_SH],
665 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
666 if test x"${install_sh+set}" != xset; then
667 case $am_aux_dir in
668 *\ * | *\ *)
669 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
670 *)
671 install_sh="\${SHELL} $am_aux_dir/install-sh"
672 esac
673 fi
674 AC_SUBST([install_sh])])
675
676 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
677 #
678 # This file is free software; the Free Software Foundation
679 # gives unlimited permission to copy and/or distribute it,
680 # with or without modifications, as long as this notice is preserved.
681
682 # Check whether the underlying file-system supports filenames
683 # with a leading dot. For instance MS-DOS doesn't.
684 AC_DEFUN([AM_SET_LEADING_DOT],
685 [rm -rf .tst 2>/dev/null
686 mkdir .tst 2>/dev/null
687 if test -d .tst; then
688 am__leading_dot=.
689 else
690 am__leading_dot=_
691 fi
692 rmdir .tst 2>/dev/null
693 AC_SUBST([am__leading_dot])])
694
695 # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
696 # From Jim Meyering
697
698 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
699 #
700 # This file is free software; the Free Software Foundation
701 # gives unlimited permission to copy and/or distribute it,
702 # with or without modifications, as long as this notice is preserved.
703
704 # AM_MAINTAINER_MODE([DEFAULT-MODE])
705 # ----------------------------------
706 # Control maintainer-specific portions of Makefiles.
707 # Default is to disable them, unless 'enable' is passed literally.
708 # For symmetry, 'disable' may be passed as well. Anyway, the user
709 # can override the default with the --enable/--disable switch.
710 AC_DEFUN([AM_MAINTAINER_MODE],
711 [m4_case(m4_default([$1], [disable]),
712 [enable], [m4_define([am_maintainer_other], [disable])],
713 [disable], [m4_define([am_maintainer_other], [enable])],
714 [m4_define([am_maintainer_other], [enable])
715 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
716 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
717 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
718 AC_ARG_ENABLE([maintainer-mode],
719 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
720 am_maintainer_other[ make rules and dependencies not useful
721 (and sometimes confusing) to the casual installer])],
722 [USE_MAINTAINER_MODE=$enableval],
723 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
724 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
725 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
726 MAINT=$MAINTAINER_MODE_TRUE
727 AC_SUBST([MAINT])dnl
728 ]
729 )
730
731 # Check to see how 'make' treats includes. -*- Autoconf -*-
732
733 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
734 #
735 # This file is free software; the Free Software Foundation
736 # gives unlimited permission to copy and/or distribute it,
737 # with or without modifications, as long as this notice is preserved.
738
739 # AM_MAKE_INCLUDE()
740 # -----------------
741 # Check whether make has an 'include' directive that can support all
742 # the idioms we need for our automatic dependency tracking code.
743 AC_DEFUN([AM_MAKE_INCLUDE],
744 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
745 cat > confinc.mk << 'END'
746 am__doit:
747 @echo this is the am__doit target >confinc.out
748 .PHONY: am__doit
749 END
750 am__include="#"
751 am__quote=
752 # BSD make does it like this.
753 echo '.include "confinc.mk" # ignored' > confmf.BSD
754 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
755 echo 'include confinc.mk # ignored' > confmf.GNU
756 _am_result=no
757 for s in GNU BSD; do
758 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
759 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
760 ['0:this is the am__doit target'],
761 [AS_CASE([$s],
762 [BSD], [am__include='.include' am__quote='"'],
763 [am__include='include' am__quote=''])])
764 if test "$am__include" != "#"; then
765 _am_result="yes ($s style)"
766 break
767 fi
768 done
769 rm -f confinc.* confmf.*
770 AC_MSG_RESULT([${_am_result}])
771 AC_SUBST([am__include])])
772 AC_SUBST([am__quote])])
773
774 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
775
776 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
777 #
778 # This file is free software; the Free Software Foundation
779 # gives unlimited permission to copy and/or distribute it,
780 # with or without modifications, as long as this notice is preserved.
781
782 # AM_MISSING_PROG(NAME, PROGRAM)
783 # ------------------------------
784 AC_DEFUN([AM_MISSING_PROG],
785 [AC_REQUIRE([AM_MISSING_HAS_RUN])
786 $1=${$1-"${am_missing_run}$2"}
787 AC_SUBST($1)])
788
789 # AM_MISSING_HAS_RUN
790 # ------------------
791 # Define MISSING if not defined so far and test if it is modern enough.
792 # If it is, set am_missing_run to use it, otherwise, to nothing.
793 AC_DEFUN([AM_MISSING_HAS_RUN],
794 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
795 AC_REQUIRE_AUX_FILE([missing])dnl
796 if test x"${MISSING+set}" != xset; then
797 MISSING="\${SHELL} '$am_aux_dir/missing'"
798 fi
799 # Use eval to expand $SHELL
800 if eval "$MISSING --is-lightweight"; then
801 am_missing_run="$MISSING "
802 else
803 am_missing_run=
804 AC_MSG_WARN(['missing' script is too old or missing])
805 fi
806 ])
807
808 # Helper functions for option handling. -*- Autoconf -*-
809
810 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
811 #
812 # This file is free software; the Free Software Foundation
813 # gives unlimited permission to copy and/or distribute it,
814 # with or without modifications, as long as this notice is preserved.
815
816 # _AM_MANGLE_OPTION(NAME)
817 # -----------------------
818 AC_DEFUN([_AM_MANGLE_OPTION],
819 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
820
821 # _AM_SET_OPTION(NAME)
822 # --------------------
823 # Set option NAME. Presently that only means defining a flag for this option.
824 AC_DEFUN([_AM_SET_OPTION],
825 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
826
827 # _AM_SET_OPTIONS(OPTIONS)
828 # ------------------------
829 # OPTIONS is a space-separated list of Automake options.
830 AC_DEFUN([_AM_SET_OPTIONS],
831 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
832
833 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
834 # -------------------------------------------
835 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
836 AC_DEFUN([_AM_IF_OPTION],
837 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
838
839 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
840 #
841 # This file is free software; the Free Software Foundation
842 # gives unlimited permission to copy and/or distribute it,
843 # with or without modifications, as long as this notice is preserved.
844
845 # _AM_PROG_CC_C_O
846 # ---------------
847 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
848 # to automatically call this.
849 AC_DEFUN([_AM_PROG_CC_C_O],
850 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
851 AC_REQUIRE_AUX_FILE([compile])dnl
852 AC_LANG_PUSH([C])dnl
853 AC_CACHE_CHECK(
854 [whether $CC understands -c and -o together],
855 [am_cv_prog_cc_c_o],
856 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
857 # Make sure it works both with $CC and with simple cc.
858 # Following AC_PROG_CC_C_O, we do the test twice because some
859 # compilers refuse to overwrite an existing .o file with -o,
860 # though they will create one.
861 am_cv_prog_cc_c_o=yes
862 for am_i in 1 2; do
863 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
864 && test -f conftest2.$ac_objext; then
865 : OK
866 else
867 am_cv_prog_cc_c_o=no
868 break
869 fi
870 done
871 rm -f core conftest*
872 unset am_i])
873 if test "$am_cv_prog_cc_c_o" != yes; then
874 # Losing compiler, so override with the script.
875 # FIXME: It is wrong to rewrite CC.
876 # But if we don't then we get into trouble of one sort or another.
877 # A longer-term fix would be to have automake use am__CC in this case,
878 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
879 CC="$am_aux_dir/compile $CC"
880 fi
881 AC_LANG_POP([C])])
882
883 # For backward compatibility.
884 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
885
886 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
887 #
888 # This file is free software; the Free Software Foundation
889 # gives unlimited permission to copy and/or distribute it,
890 # with or without modifications, as long as this notice is preserved.
891
892 # AM_RUN_LOG(COMMAND)
893 # -------------------
894 # Run COMMAND, save the exit status in ac_status, and log it.
895 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
896 AC_DEFUN([AM_RUN_LOG],
897 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
898 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
899 ac_status=$?
900 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
901 (exit $ac_status); }])
902
903 # Check to make sure that the build environment is sane. -*- Autoconf -*-
904
905 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
906 #
907 # This file is free software; the Free Software Foundation
908 # gives unlimited permission to copy and/or distribute it,
909 # with or without modifications, as long as this notice is preserved.
910
911 # AM_SANITY_CHECK
912 # ---------------
913 AC_DEFUN([AM_SANITY_CHECK],
914 [AC_MSG_CHECKING([whether build environment is sane])
915 # Reject unsafe characters in $srcdir or the absolute working directory
916 # name. Accept space and tab only in the latter.
917 am_lf='
918 '
919 case `pwd` in
920 *[[\\\"\#\$\&\'\`$am_lf]]*)
921 AC_MSG_ERROR([unsafe absolute working directory name]);;
922 esac
923 case $srcdir in
924 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
925 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
926 esac
927
928 # Do 'set' in a subshell so we don't clobber the current shell's
929 # arguments. Must try -L first in case configure is actually a
930 # symlink; some systems play weird games with the mod time of symlinks
931 # (eg FreeBSD returns the mod time of the symlink's containing
932 # directory).
933 if (
934 am_has_slept=no
935 for am_try in 1 2; do
936 echo "timestamp, slept: $am_has_slept" > conftest.file
937 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
938 if test "$[*]" = "X"; then
939 # -L didn't work.
940 set X `ls -t "$srcdir/configure" conftest.file`
941 fi
942 if test "$[*]" != "X $srcdir/configure conftest.file" \
943 && test "$[*]" != "X conftest.file $srcdir/configure"; then
944
945 # If neither matched, then we have a broken ls. This can happen
946 # if, for instance, CONFIG_SHELL is bash and it inherits a
947 # broken ls alias from the environment. This has actually
948 # happened. Such a system could not be considered "sane".
949 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
950 alias in your environment])
951 fi
952 if test "$[2]" = conftest.file || test $am_try -eq 2; then
953 break
954 fi
955 # Just in case.
956 sleep 1
957 am_has_slept=yes
958 done
959 test "$[2]" = conftest.file
960 )
961 then
962 # Ok.
963 :
964 else
965 AC_MSG_ERROR([newly created file is older than distributed files!
966 Check your system clock])
967 fi
968 AC_MSG_RESULT([yes])
969 # If we didn't sleep, we still need to ensure time stamps of config.status and
970 # generated files are strictly newer.
971 am_sleep_pid=
972 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
973 ( sleep 1 ) &
974 am_sleep_pid=$!
975 fi
976 AC_CONFIG_COMMANDS_PRE(
977 [AC_MSG_CHECKING([that generated files are newer than configure])
978 if test -n "$am_sleep_pid"; then
979 # Hide warnings about reused PIDs.
980 wait $am_sleep_pid 2>/dev/null
981 fi
982 AC_MSG_RESULT([done])])
983 rm -f conftest.file
984 ])
985
986 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
987 #
988 # This file is free software; the Free Software Foundation
989 # gives unlimited permission to copy and/or distribute it,
990 # with or without modifications, as long as this notice is preserved.
991
992 # AM_SILENT_RULES([DEFAULT])
993 # --------------------------
994 # Enable less verbose build rules; with the default set to DEFAULT
995 # ("yes" being less verbose, "no" or empty being verbose).
996 AC_DEFUN([AM_SILENT_RULES],
997 [AC_ARG_ENABLE([silent-rules], [dnl
998 AS_HELP_STRING(
999 [--enable-silent-rules],
1000 [less verbose build output (undo: "make V=1")])
1001 AS_HELP_STRING(
1002 [--disable-silent-rules],
1003 [verbose build output (undo: "make V=0")])dnl
1004 ])
1005 case $enable_silent_rules in @%:@ (((
1006 yes) AM_DEFAULT_VERBOSITY=0;;
1007 no) AM_DEFAULT_VERBOSITY=1;;
1008 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1009 esac
1010 dnl
1011 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1012 dnl do not support nested variable expansions.
1013 dnl See automake bug#9928 and bug#10237.
1014 am_make=${MAKE-make}
1015 AC_CACHE_CHECK([whether $am_make supports nested variables],
1016 [am_cv_make_support_nested_variables],
1017 [if AS_ECHO([['TRUE=$(BAR$(V))
1018 BAR0=false
1019 BAR1=true
1020 V=1
1021 am__doit:
1022 @$(TRUE)
1023 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1024 am_cv_make_support_nested_variables=yes
1025 else
1026 am_cv_make_support_nested_variables=no
1027 fi])
1028 if test $am_cv_make_support_nested_variables = yes; then
1029 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1030 AM_V='$(V)'
1031 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1032 else
1033 AM_V=$AM_DEFAULT_VERBOSITY
1034 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1035 fi
1036 AC_SUBST([AM_V])dnl
1037 AM_SUBST_NOTMAKE([AM_V])dnl
1038 AC_SUBST([AM_DEFAULT_V])dnl
1039 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1040 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1041 AM_BACKSLASH='\'
1042 AC_SUBST([AM_BACKSLASH])dnl
1043 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1044 ])
1045
1046 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1047 #
1048 # This file is free software; the Free Software Foundation
1049 # gives unlimited permission to copy and/or distribute it,
1050 # with or without modifications, as long as this notice is preserved.
1051
1052 # AM_PROG_INSTALL_STRIP
1053 # ---------------------
1054 # One issue with vendor 'install' (even GNU) is that you can't
1055 # specify the program used to strip binaries. This is especially
1056 # annoying in cross-compiling environments, where the build's strip
1057 # is unlikely to handle the host's binaries.
1058 # Fortunately install-sh will honor a STRIPPROG variable, so we
1059 # always use install-sh in "make install-strip", and initialize
1060 # STRIPPROG with the value of the STRIP variable (set by the user).
1061 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1062 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1063 # Installed binaries are usually stripped using 'strip' when the user
1064 # run "make install-strip". However 'strip' might not be the right
1065 # tool to use in cross-compilation environments, therefore Automake
1066 # will honor the 'STRIP' environment variable to overrule this program.
1067 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1068 if test "$cross_compiling" != no; then
1069 AC_CHECK_TOOL([STRIP], [strip], :)
1070 fi
1071 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1072 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1073
1074 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1075 #
1076 # This file is free software; the Free Software Foundation
1077 # gives unlimited permission to copy and/or distribute it,
1078 # with or without modifications, as long as this notice is preserved.
1079
1080 # _AM_SUBST_NOTMAKE(VARIABLE)
1081 # ---------------------------
1082 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1083 # This macro is traced by Automake.
1084 AC_DEFUN([_AM_SUBST_NOTMAKE])
1085
1086 # AM_SUBST_NOTMAKE(VARIABLE)
1087 # --------------------------
1088 # Public sister of _AM_SUBST_NOTMAKE.
1089 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1090
1091 # Check how to create a tarball. -*- Autoconf -*-
1092
1093 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1094 #
1095 # This file is free software; the Free Software Foundation
1096 # gives unlimited permission to copy and/or distribute it,
1097 # with or without modifications, as long as this notice is preserved.
1098
1099 # _AM_PROG_TAR(FORMAT)
1100 # --------------------
1101 # Check how to create a tarball in format FORMAT.
1102 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1103 #
1104 # Substitute a variable $(am__tar) that is a command
1105 # writing to stdout a FORMAT-tarball containing the directory
1106 # $tardir.
1107 # tardir=directory && $(am__tar) > result.tar
1108 #
1109 # Substitute a variable $(am__untar) that extract such
1110 # a tarball read from stdin.
1111 # $(am__untar) < result.tar
1112 #
1113 AC_DEFUN([_AM_PROG_TAR],
1114 [# Always define AMTAR for backward compatibility. Yes, it's still used
1115 # in the wild :-( We should find a proper way to deprecate it ...
1116 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1117
1118 # We'll loop over all known methods to create a tar archive until one works.
1119 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1120
1121 m4_if([$1], [v7],
1122 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1123
1124 [m4_case([$1],
1125 [ustar],
1126 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1127 # There is notably a 21 bits limit for the UID and the GID. In fact,
1128 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1129 # and bug#13588).
1130 am_max_uid=2097151 # 2^21 - 1
1131 am_max_gid=$am_max_uid
1132 # The $UID and $GID variables are not portable, so we need to resort
1133 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1134 # below are definitely unexpected, so allow the users to see them
1135 # (that is, avoid stderr redirection).
1136 am_uid=`id -u || echo unknown`
1137 am_gid=`id -g || echo unknown`
1138 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1139 if test $am_uid -le $am_max_uid; then
1140 AC_MSG_RESULT([yes])
1141 else
1142 AC_MSG_RESULT([no])
1143 _am_tools=none
1144 fi
1145 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1146 if test $am_gid -le $am_max_gid; then
1147 AC_MSG_RESULT([yes])
1148 else
1149 AC_MSG_RESULT([no])
1150 _am_tools=none
1151 fi],
1152
1153 [pax],
1154 [],
1155
1156 [m4_fatal([Unknown tar format])])
1157
1158 AC_MSG_CHECKING([how to create a $1 tar archive])
1159
1160 # Go ahead even if we have the value already cached. We do so because we
1161 # need to set the values for the 'am__tar' and 'am__untar' variables.
1162 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1163
1164 for _am_tool in $_am_tools; do
1165 case $_am_tool in
1166 gnutar)
1167 for _am_tar in tar gnutar gtar; do
1168 AM_RUN_LOG([$_am_tar --version]) && break
1169 done
1170 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1171 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1172 am__untar="$_am_tar -xf -"
1173 ;;
1174 plaintar)
1175 # Must skip GNU tar: if it does not support --format= it doesn't create
1176 # ustar tarball either.
1177 (tar --version) >/dev/null 2>&1 && continue
1178 am__tar='tar chf - "$$tardir"'
1179 am__tar_='tar chf - "$tardir"'
1180 am__untar='tar xf -'
1181 ;;
1182 pax)
1183 am__tar='pax -L -x $1 -w "$$tardir"'
1184 am__tar_='pax -L -x $1 -w "$tardir"'
1185 am__untar='pax -r'
1186 ;;
1187 cpio)
1188 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1189 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1190 am__untar='cpio -i -H $1 -d'
1191 ;;
1192 none)
1193 am__tar=false
1194 am__tar_=false
1195 am__untar=false
1196 ;;
1197 esac
1198
1199 # If the value was cached, stop now. We just wanted to have am__tar
1200 # and am__untar set.
1201 test -n "${am_cv_prog_tar_$1}" && break
1202
1203 # tar/untar a dummy directory, and stop if the command works.
1204 rm -rf conftest.dir
1205 mkdir conftest.dir
1206 echo GrepMe > conftest.dir/file
1207 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1208 rm -rf conftest.dir
1209 if test -s conftest.tar; then
1210 AM_RUN_LOG([$am__untar <conftest.tar])
1211 AM_RUN_LOG([cat conftest.dir/file])
1212 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1213 fi
1214 done
1215 rm -rf conftest.dir
1216
1217 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1218 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1219
1220 AC_SUBST([am__tar])
1221 AC_SUBST([am__untar])
1222 ]) # _AM_PROG_TAR
1223