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1 office 1 # generated automatically by aclocal 1.16.1 -*- Autoconf -*-
2  
3 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
4  
5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
7 # with or without modifications, as long as this notice is preserved.
8  
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12 # PARTICULAR PURPOSE.
13  
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22  
23 # Copyright (C) 2002-2018 Free Software Foundation, Inc.
24 #
25 # This file is free software; the Free Software Foundation
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59 # AM_AUX_DIR_EXPAND -*- Autoconf -*-
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61 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
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63 # This file is free software; the Free Software Foundation
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115 # This file is free software; the Free Software Foundation
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181 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
182 #
183 # This file is free software; the Free Software Foundation
184 # gives unlimited permission to copy and/or distribute it,
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186  
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370 # Generate code to set up dependency tracking. -*- Autoconf -*-
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372 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
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374 # This file is free software; the Free Software Foundation
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436 # Do all the work for Automake. -*- Autoconf -*-
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542 [_AM_DEPENDENCIES([CXX])],
543 [m4_define([AC_PROG_CXX],
544 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
545 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
546 [_AM_DEPENDENCIES([OBJC])],
547 [m4_define([AC_PROG_OBJC],
548 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
549 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
550 [_AM_DEPENDENCIES([OBJCXX])],
551 [m4_define([AC_PROG_OBJCXX],
552 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
553 ])
554 AC_REQUIRE([AM_SILENT_RULES])dnl
555 dnl The testsuite driver may need to know about EXEEXT, so add the
556 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
557 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
558 AC_CONFIG_COMMANDS_PRE(dnl
559 [m4_provide_if([_AM_COMPILER_EXEEXT],
560 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
561  
562 # POSIX will say in a future version that running "rm -f" with no argument
563 # is OK; and we want to be able to make that assumption in our Makefile
564 # recipes. So use an aggressive probe to check that the usage we want is
565 # actually supported "in the wild" to an acceptable degree.
566 # See automake bug#10828.
567 # To make any issue more visible, cause the running configure to be aborted
568 # by default if the 'rm' program in use doesn't match our expectations; the
569 # user can still override this though.
570 if rm -f && rm -fr && rm -rf; then : OK; else
571 cat >&2 <<'END'
572 Oops!
573  
574 Your 'rm' program seems unable to run without file operands specified
575 on the command line, even when the '-f' option is present. This is contrary
576 to the behaviour of most rm programs out there, and not conforming with
577 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
578  
579 Please tell bug-automake@gnu.org about your system, including the value
580 of your $PATH and any error possibly output before this message. This
581 can help us improve future automake versions.
582  
583 END
584 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
585 echo 'Configuration will proceed anyway, since you have set the' >&2
586 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
587 echo >&2
588 else
589 cat >&2 <<'END'
590 Aborting the configuration process, to ensure you take notice of the issue.
591  
592 You can download and install GNU coreutils to get an 'rm' implementation
593 that behaves properly: <https://www.gnu.org/software/coreutils/>.
594  
595 If you want to complete the configuration process using your problematic
596 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
597 to "yes", and re-run configure.
598  
599 END
600 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
601 fi
602 fi
603 dnl The trailing newline in this macro's definition is deliberate, for
604 dnl backward compatibility and to allow trailing 'dnl'-style comments
605 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
606 ])
607  
608 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
609 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
610 dnl mangled by Autoconf and run in a shell conditional statement.
611 m4_define([_AC_COMPILER_EXEEXT],
612 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
613  
614 # When config.status generates a header, we must update the stamp-h file.
615 # This file resides in the same directory as the config header
616 # that is generated. The stamp files are numbered to have different names.
617  
618 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
619 # loop where config.status creates the headers, so we can generate
620 # our stamp files there.
621 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
622 [# Compute $1's index in $config_headers.
623 _am_arg=$1
624 _am_stamp_count=1
625 for _am_header in $config_headers :; do
626 case $_am_header in
627 $_am_arg | $_am_arg:* )
628 break ;;
629 * )
630 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
631 esac
632 done
633 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
634  
635 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
636 #
637 # This file is free software; the Free Software Foundation
638 # gives unlimited permission to copy and/or distribute it,
639 # with or without modifications, as long as this notice is preserved.
640  
641 # AM_PROG_INSTALL_SH
642 # ------------------
643 # Define $install_sh.
644 AC_DEFUN([AM_PROG_INSTALL_SH],
645 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
646 if test x"${install_sh+set}" != xset; then
647 case $am_aux_dir in
648 *\ * | *\ *)
649 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
650 *)
651 install_sh="\${SHELL} $am_aux_dir/install-sh"
652 esac
653 fi
654 AC_SUBST([install_sh])])
655  
656 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
657 #
658 # This file is free software; the Free Software Foundation
659 # gives unlimited permission to copy and/or distribute it,
660 # with or without modifications, as long as this notice is preserved.
661  
662 # Check whether the underlying file-system supports filenames
663 # with a leading dot. For instance MS-DOS doesn't.
664 AC_DEFUN([AM_SET_LEADING_DOT],
665 [rm -rf .tst 2>/dev/null
666 mkdir .tst 2>/dev/null
667 if test -d .tst; then
668 am__leading_dot=.
669 else
670 am__leading_dot=_
671 fi
672 rmdir .tst 2>/dev/null
673 AC_SUBST([am__leading_dot])])
674  
675 # Check to see how 'make' treats includes. -*- Autoconf -*-
676  
677 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
678 #
679 # This file is free software; the Free Software Foundation
680 # gives unlimited permission to copy and/or distribute it,
681 # with or without modifications, as long as this notice is preserved.
682  
683 # AM_MAKE_INCLUDE()
684 # -----------------
685 # Check whether make has an 'include' directive that can support all
686 # the idioms we need for our automatic dependency tracking code.
687 AC_DEFUN([AM_MAKE_INCLUDE],
688 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
689 cat > confinc.mk << 'END'
690 am__doit:
691 @echo this is the am__doit target >confinc.out
692 .PHONY: am__doit
693 END
694 am__include="#"
695 am__quote=
696 # BSD make does it like this.
697 echo '.include "confinc.mk" # ignored' > confmf.BSD
698 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
699 echo 'include confinc.mk # ignored' > confmf.GNU
700 _am_result=no
701 for s in GNU BSD; do
702 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
703 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
704 ['0:this is the am__doit target'],
705 [AS_CASE([$s],
706 [BSD], [am__include='.include' am__quote='"'],
707 [am__include='include' am__quote=''])])
708 if test "$am__include" != "#"; then
709 _am_result="yes ($s style)"
710 break
711 fi
712 done
713 rm -f confinc.* confmf.*
714 AC_MSG_RESULT([${_am_result}])
715 AC_SUBST([am__include])])
716 AC_SUBST([am__quote])])
717  
718 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
719  
720 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
721 #
722 # This file is free software; the Free Software Foundation
723 # gives unlimited permission to copy and/or distribute it,
724 # with or without modifications, as long as this notice is preserved.
725  
726 # AM_MISSING_PROG(NAME, PROGRAM)
727 # ------------------------------
728 AC_DEFUN([AM_MISSING_PROG],
729 [AC_REQUIRE([AM_MISSING_HAS_RUN])
730 $1=${$1-"${am_missing_run}$2"}
731 AC_SUBST($1)])
732  
733 # AM_MISSING_HAS_RUN
734 # ------------------
735 # Define MISSING if not defined so far and test if it is modern enough.
736 # If it is, set am_missing_run to use it, otherwise, to nothing.
737 AC_DEFUN([AM_MISSING_HAS_RUN],
738 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
739 AC_REQUIRE_AUX_FILE([missing])dnl
740 if test x"${MISSING+set}" != xset; then
741 case $am_aux_dir in
742 *\ * | *\ *)
743 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
744 *)
745 MISSING="\${SHELL} $am_aux_dir/missing" ;;
746 esac
747 fi
748 # Use eval to expand $SHELL
749 if eval "$MISSING --is-lightweight"; then
750 am_missing_run="$MISSING "
751 else
752 am_missing_run=
753 AC_MSG_WARN(['missing' script is too old or missing])
754 fi
755 ])
756  
757 # -*- Autoconf -*-
758 # Obsolete and "removed" macros, that must however still report explicit
759 # error messages when used, to smooth transition.
760 #
761 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
762 #
763 # This file is free software; the Free Software Foundation
764 # gives unlimited permission to copy and/or distribute it,
765 # with or without modifications, as long as this notice is preserved.
766  
767 AC_DEFUN([AM_CONFIG_HEADER],
768 [AC_DIAGNOSE([obsolete],
769 ['$0': this macro is obsolete.
770 You should use the 'AC][_CONFIG_HEADERS' macro instead.])dnl
771 AC_CONFIG_HEADERS($@)])
772  
773 AC_DEFUN([AM_PROG_CC_STDC],
774 [AC_PROG_CC
775 am_cv_prog_cc_stdc=$ac_cv_prog_cc_stdc
776 AC_DIAGNOSE([obsolete],
777 ['$0': this macro is obsolete.
778 You should simply use the 'AC][_PROG_CC' macro instead.
779 Also, your code should no longer depend upon 'am_cv_prog_cc_stdc',
780 but upon 'ac_cv_prog_cc_stdc'.])])
781  
782 AC_DEFUN([AM_C_PROTOTYPES],
783 [AC_FATAL([automatic de-ANSI-fication support has been removed])])
784 AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])
785  
786 # Helper functions for option handling. -*- Autoconf -*-
787  
788 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
789 #
790 # This file is free software; the Free Software Foundation
791 # gives unlimited permission to copy and/or distribute it,
792 # with or without modifications, as long as this notice is preserved.
793  
794 # _AM_MANGLE_OPTION(NAME)
795 # -----------------------
796 AC_DEFUN([_AM_MANGLE_OPTION],
797 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
798  
799 # _AM_SET_OPTION(NAME)
800 # --------------------
801 # Set option NAME. Presently that only means defining a flag for this option.
802 AC_DEFUN([_AM_SET_OPTION],
803 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
804  
805 # _AM_SET_OPTIONS(OPTIONS)
806 # ------------------------
807 # OPTIONS is a space-separated list of Automake options.
808 AC_DEFUN([_AM_SET_OPTIONS],
809 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
810  
811 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
812 # -------------------------------------------
813 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
814 AC_DEFUN([_AM_IF_OPTION],
815 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
816  
817 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
818 #
819 # This file is free software; the Free Software Foundation
820 # gives unlimited permission to copy and/or distribute it,
821 # with or without modifications, as long as this notice is preserved.
822  
823 # _AM_PROG_CC_C_O
824 # ---------------
825 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
826 # to automatically call this.
827 AC_DEFUN([_AM_PROG_CC_C_O],
828 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
829 AC_REQUIRE_AUX_FILE([compile])dnl
830 AC_LANG_PUSH([C])dnl
831 AC_CACHE_CHECK(
832 [whether $CC understands -c and -o together],
833 [am_cv_prog_cc_c_o],
834 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
835 # Make sure it works both with $CC and with simple cc.
836 # Following AC_PROG_CC_C_O, we do the test twice because some
837 # compilers refuse to overwrite an existing .o file with -o,
838 # though they will create one.
839 am_cv_prog_cc_c_o=yes
840 for am_i in 1 2; do
841 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
842 && test -f conftest2.$ac_objext; then
843 : OK
844 else
845 am_cv_prog_cc_c_o=no
846 break
847 fi
848 done
849 rm -f core conftest*
850 unset am_i])
851 if test "$am_cv_prog_cc_c_o" != yes; then
852 # Losing compiler, so override with the script.
853 # FIXME: It is wrong to rewrite CC.
854 # But if we don't then we get into trouble of one sort or another.
855 # A longer-term fix would be to have automake use am__CC in this case,
856 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
857 CC="$am_aux_dir/compile $CC"
858 fi
859 AC_LANG_POP([C])])
860  
861 # For backward compatibility.
862 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
863  
864 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
865 #
866 # This file is free software; the Free Software Foundation
867 # gives unlimited permission to copy and/or distribute it,
868 # with or without modifications, as long as this notice is preserved.
869  
870 # AM_RUN_LOG(COMMAND)
871 # -------------------
872 # Run COMMAND, save the exit status in ac_status, and log it.
873 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
874 AC_DEFUN([AM_RUN_LOG],
875 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
876 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
877 ac_status=$?
878 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
879 (exit $ac_status); }])
880  
881 # Check to make sure that the build environment is sane. -*- Autoconf -*-
882  
883 # Copyright (C) 1996-2018 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.
888  
889 # AM_SANITY_CHECK
890 # ---------------
891 AC_DEFUN([AM_SANITY_CHECK],
892 [AC_MSG_CHECKING([whether build environment is sane])
893 # Reject unsafe characters in $srcdir or the absolute working directory
894 # name. Accept space and tab only in the latter.
895 am_lf='
896 '
897 case `pwd` in
898 *[[\\\"\#\$\&\'\`$am_lf]]*)
899 AC_MSG_ERROR([unsafe absolute working directory name]);;
900 esac
901 case $srcdir in
902 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
903 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
904 esac
905  
906 # Do 'set' in a subshell so we don't clobber the current shell's
907 # arguments. Must try -L first in case configure is actually a
908 # symlink; some systems play weird games with the mod time of symlinks
909 # (eg FreeBSD returns the mod time of the symlink's containing
910 # directory).
911 if (
912 am_has_slept=no
913 for am_try in 1 2; do
914 echo "timestamp, slept: $am_has_slept" > conftest.file
915 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
916 if test "$[*]" = "X"; then
917 # -L didn't work.
918 set X `ls -t "$srcdir/configure" conftest.file`
919 fi
920 if test "$[*]" != "X $srcdir/configure conftest.file" \
921 && test "$[*]" != "X conftest.file $srcdir/configure"; then
922  
923 # If neither matched, then we have a broken ls. This can happen
924 # if, for instance, CONFIG_SHELL is bash and it inherits a
925 # broken ls alias from the environment. This has actually
926 # happened. Such a system could not be considered "sane".
927 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
928 alias in your environment])
929 fi
930 if test "$[2]" = conftest.file || test $am_try -eq 2; then
931 break
932 fi
933 # Just in case.
934 sleep 1
935 am_has_slept=yes
936 done
937 test "$[2]" = conftest.file
938 )
939 then
940 # Ok.
941 :
942 else
943 AC_MSG_ERROR([newly created file is older than distributed files!
944 Check your system clock])
945 fi
946 AC_MSG_RESULT([yes])
947 # If we didn't sleep, we still need to ensure time stamps of config.status and
948 # generated files are strictly newer.
949 am_sleep_pid=
950 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
951 ( sleep 1 ) &
952 am_sleep_pid=$!
953 fi
954 AC_CONFIG_COMMANDS_PRE(
955 [AC_MSG_CHECKING([that generated files are newer than configure])
956 if test -n "$am_sleep_pid"; then
957 # Hide warnings about reused PIDs.
958 wait $am_sleep_pid 2>/dev/null
959 fi
960 AC_MSG_RESULT([done])])
961 rm -f conftest.file
962 ])
963  
964 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
965 #
966 # This file is free software; the Free Software Foundation
967 # gives unlimited permission to copy and/or distribute it,
968 # with or without modifications, as long as this notice is preserved.
969  
970 # AM_SILENT_RULES([DEFAULT])
971 # --------------------------
972 # Enable less verbose build rules; with the default set to DEFAULT
973 # ("yes" being less verbose, "no" or empty being verbose).
974 AC_DEFUN([AM_SILENT_RULES],
975 [AC_ARG_ENABLE([silent-rules], [dnl
976 AS_HELP_STRING(
977 [--enable-silent-rules],
978 [less verbose build output (undo: "make V=1")])
979 AS_HELP_STRING(
980 [--disable-silent-rules],
981 [verbose build output (undo: "make V=0")])dnl
982 ])
983 case $enable_silent_rules in @%:@ (((
984 yes) AM_DEFAULT_VERBOSITY=0;;
985 no) AM_DEFAULT_VERBOSITY=1;;
986 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
987 esac
988 dnl
989 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
990 dnl do not support nested variable expansions.
991 dnl See automake bug#9928 and bug#10237.
992 am_make=${MAKE-make}
993 AC_CACHE_CHECK([whether $am_make supports nested variables],
994 [am_cv_make_support_nested_variables],
995 [if AS_ECHO([['TRUE=$(BAR$(V))
996 BAR0=false
997 BAR1=true
998 V=1
999 am__doit:
1000 @$(TRUE)
1001 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1002 am_cv_make_support_nested_variables=yes
1003 else
1004 am_cv_make_support_nested_variables=no
1005 fi])
1006 if test $am_cv_make_support_nested_variables = yes; then
1007 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1008 AM_V='$(V)'
1009 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1010 else
1011 AM_V=$AM_DEFAULT_VERBOSITY
1012 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1013 fi
1014 AC_SUBST([AM_V])dnl
1015 AM_SUBST_NOTMAKE([AM_V])dnl
1016 AC_SUBST([AM_DEFAULT_V])dnl
1017 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1018 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1019 AM_BACKSLASH='\'
1020 AC_SUBST([AM_BACKSLASH])dnl
1021 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1022 ])
1023  
1024 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
1025 #
1026 # This file is free software; the Free Software Foundation
1027 # gives unlimited permission to copy and/or distribute it,
1028 # with or without modifications, as long as this notice is preserved.
1029  
1030 # AM_PROG_INSTALL_STRIP
1031 # ---------------------
1032 # One issue with vendor 'install' (even GNU) is that you can't
1033 # specify the program used to strip binaries. This is especially
1034 # annoying in cross-compiling environments, where the build's strip
1035 # is unlikely to handle the host's binaries.
1036 # Fortunately install-sh will honor a STRIPPROG variable, so we
1037 # always use install-sh in "make install-strip", and initialize
1038 # STRIPPROG with the value of the STRIP variable (set by the user).
1039 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1040 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1041 # Installed binaries are usually stripped using 'strip' when the user
1042 # run "make install-strip". However 'strip' might not be the right
1043 # tool to use in cross-compilation environments, therefore Automake
1044 # will honor the 'STRIP' environment variable to overrule this program.
1045 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1046 if test "$cross_compiling" != no; then
1047 AC_CHECK_TOOL([STRIP], [strip], :)
1048 fi
1049 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1050 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1051  
1052 # Copyright (C) 2006-2018 Free Software Foundation, Inc.
1053 #
1054 # This file is free software; the Free Software Foundation
1055 # gives unlimited permission to copy and/or distribute it,
1056 # with or without modifications, as long as this notice is preserved.
1057  
1058 # _AM_SUBST_NOTMAKE(VARIABLE)
1059 # ---------------------------
1060 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1061 # This macro is traced by Automake.
1062 AC_DEFUN([_AM_SUBST_NOTMAKE])
1063  
1064 # AM_SUBST_NOTMAKE(VARIABLE)
1065 # --------------------------
1066 # Public sister of _AM_SUBST_NOTMAKE.
1067 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1068  
1069 # Check how to create a tarball. -*- Autoconf -*-
1070  
1071 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
1072 #
1073 # This file is free software; the Free Software Foundation
1074 # gives unlimited permission to copy and/or distribute it,
1075 # with or without modifications, as long as this notice is preserved.
1076  
1077 # _AM_PROG_TAR(FORMAT)
1078 # --------------------
1079 # Check how to create a tarball in format FORMAT.
1080 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1081 #
1082 # Substitute a variable $(am__tar) that is a command
1083 # writing to stdout a FORMAT-tarball containing the directory
1084 # $tardir.
1085 # tardir=directory && $(am__tar) > result.tar
1086 #
1087 # Substitute a variable $(am__untar) that extract such
1088 # a tarball read from stdin.
1089 # $(am__untar) < result.tar
1090 #
1091 AC_DEFUN([_AM_PROG_TAR],
1092 [# Always define AMTAR for backward compatibility. Yes, it's still used
1093 # in the wild :-( We should find a proper way to deprecate it ...
1094 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1095  
1096 # We'll loop over all known methods to create a tar archive until one works.
1097 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1098  
1099 m4_if([$1], [v7],
1100 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1101  
1102 [m4_case([$1],
1103 [ustar],
1104 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1105 # There is notably a 21 bits limit for the UID and the GID. In fact,
1106 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1107 # and bug#13588).
1108 am_max_uid=2097151 # 2^21 - 1
1109 am_max_gid=$am_max_uid
1110 # The $UID and $GID variables are not portable, so we need to resort
1111 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1112 # below are definitely unexpected, so allow the users to see them
1113 # (that is, avoid stderr redirection).
1114 am_uid=`id -u || echo unknown`
1115 am_gid=`id -g || echo unknown`
1116 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1117 if test $am_uid -le $am_max_uid; then
1118 AC_MSG_RESULT([yes])
1119 else
1120 AC_MSG_RESULT([no])
1121 _am_tools=none
1122 fi
1123 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1124 if test $am_gid -le $am_max_gid; then
1125 AC_MSG_RESULT([yes])
1126 else
1127 AC_MSG_RESULT([no])
1128 _am_tools=none
1129 fi],
1130  
1131 [pax],
1132 [],
1133  
1134 [m4_fatal([Unknown tar format])])
1135  
1136 AC_MSG_CHECKING([how to create a $1 tar archive])
1137  
1138 # Go ahead even if we have the value already cached. We do so because we
1139 # need to set the values for the 'am__tar' and 'am__untar' variables.
1140 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1141  
1142 for _am_tool in $_am_tools; do
1143 case $_am_tool in
1144 gnutar)
1145 for _am_tar in tar gnutar gtar; do
1146 AM_RUN_LOG([$_am_tar --version]) && break
1147 done
1148 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1149 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1150 am__untar="$_am_tar -xf -"
1151 ;;
1152 plaintar)
1153 # Must skip GNU tar: if it does not support --format= it doesn't create
1154 # ustar tarball either.
1155 (tar --version) >/dev/null 2>&1 && continue
1156 am__tar='tar chf - "$$tardir"'
1157 am__tar_='tar chf - "$tardir"'
1158 am__untar='tar xf -'
1159 ;;
1160 pax)
1161 am__tar='pax -L -x $1 -w "$$tardir"'
1162 am__tar_='pax -L -x $1 -w "$tardir"'
1163 am__untar='pax -r'
1164 ;;
1165 cpio)
1166 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1167 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1168 am__untar='cpio -i -H $1 -d'
1169 ;;
1170 none)
1171 am__tar=false
1172 am__tar_=false
1173 am__untar=false
1174 ;;
1175 esac
1176  
1177 # If the value was cached, stop now. We just wanted to have am__tar
1178 # and am__untar set.
1179 test -n "${am_cv_prog_tar_$1}" && break
1180  
1181 # tar/untar a dummy directory, and stop if the command works.
1182 rm -rf conftest.dir
1183 mkdir conftest.dir
1184 echo GrepMe > conftest.dir/file
1185 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1186 rm -rf conftest.dir
1187 if test -s conftest.tar; then
1188 AM_RUN_LOG([$am__untar <conftest.tar])
1189 AM_RUN_LOG([cat conftest.dir/file])
1190 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1191 fi
1192 done
1193 rm -rf conftest.dir
1194  
1195 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1196 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1197  
1198 AC_SUBST([am__tar])
1199 AC_SUBST([am__untar])
1200 ]) # _AM_PROG_TAR
1201