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1 # generated automatically by aclocal 1.16 -*- Autoconf -*-
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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.
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23 # Copyright (C) 2002-2018 Free Software Foundation, Inc.
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241 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
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557 AC_SUBST([PACKAGE], [$1])dnl
558 AC_SUBST([VERSION], [$2])],
559 [_AM_SET_OPTIONS([$1])dnl
560 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
561 m4_if(
562 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
563 [ok:ok],,
564 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
565 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
566 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
567
568 _AM_IF_OPTION([no-define],,
569 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
570 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
571
572 # Some tools Automake needs.
573 AC_REQUIRE([AM_SANITY_CHECK])dnl
574 AC_REQUIRE([AC_ARG_PROGRAM])dnl
575 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
576 AM_MISSING_PROG([AUTOCONF], [autoconf])
577 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
578 AM_MISSING_PROG([AUTOHEADER], [autoheader])
579 AM_MISSING_PROG([MAKEINFO], [makeinfo])
580 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
581 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
582 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
583 # For better backward compatibility. To be removed once Automake 1.9.x
584 # dies out for good. For more background, see:
585 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
586 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
587 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
588 # We need awk for the "check" target (and possibly the TAP driver). The
589 # system "awk" is bad on some platforms.
590 AC_REQUIRE([AC_PROG_AWK])dnl
591 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
592 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
593 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
594 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
595 [_AM_PROG_TAR([v7])])])
596 _AM_IF_OPTION([no-dependencies],,
597 [AC_PROVIDE_IFELSE([AC_PROG_CC],
598 [_AM_DEPENDENCIES([CC])],
599 [m4_define([AC_PROG_CC],
600 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
601 AC_PROVIDE_IFELSE([AC_PROG_CXX],
602 [_AM_DEPENDENCIES([CXX])],
603 [m4_define([AC_PROG_CXX],
604 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
605 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
606 [_AM_DEPENDENCIES([OBJC])],
607 [m4_define([AC_PROG_OBJC],
608 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
609 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
610 [_AM_DEPENDENCIES([OBJCXX])],
611 [m4_define([AC_PROG_OBJCXX],
612 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
613 ])
614 AC_REQUIRE([AM_SILENT_RULES])dnl
615 dnl The testsuite driver may need to know about EXEEXT, so add the
616 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
617 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
618 AC_CONFIG_COMMANDS_PRE(dnl
619 [m4_provide_if([_AM_COMPILER_EXEEXT],
620 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
621
622 # POSIX will say in a future version that running "rm -f" with no argument
623 # is OK; and we want to be able to make that assumption in our Makefile
624 # recipes. So use an aggressive probe to check that the usage we want is
625 # actually supported "in the wild" to an acceptable degree.
626 # See automake bug#10828.
627 # To make any issue more visible, cause the running configure to be aborted
628 # by default if the 'rm' program in use doesn't match our expectations; the
629 # user can still override this though.
630 if rm -f && rm -fr && rm -rf; then : OK; else
631 cat >&2 <<'END'
632 Oops!
633
634 Your 'rm' program seems unable to run without file operands specified
635 on the command line, even when the '-f' option is present. This is contrary
636 to the behaviour of most rm programs out there, and not conforming with
637 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
638
639 Please tell bug-automake@gnu.org about your system, including the value
640 of your $PATH and any error possibly output before this message. This
641 can help us improve future automake versions.
642
643 END
644 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
645 echo 'Configuration will proceed anyway, since you have set the' >&2
646 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
647 echo >&2
648 else
649 cat >&2 <<'END'
650 Aborting the configuration process, to ensure you take notice of the issue.
651
652 You can download and install GNU coreutils to get an 'rm' implementation
653 that behaves properly: <https://www.gnu.org/software/coreutils/>.
654
655 If you want to complete the configuration process using your problematic
656 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
657 to "yes", and re-run configure.
658
659 END
660 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
661 fi
662 fi
663 dnl The trailing newline in this macro's definition is deliberate, for
664 dnl backward compatibility and to allow trailing 'dnl'-style comments
665 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
666 ])
667
668 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
669 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
670 dnl mangled by Autoconf and run in a shell conditional statement.
671 m4_define([_AC_COMPILER_EXEEXT],
672 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
673
674 # When config.status generates a header, we must update the stamp-h file.
675 # This file resides in the same directory as the config header
676 # that is generated. The stamp files are numbered to have different names.
677
678 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
679 # loop where config.status creates the headers, so we can generate
680 # our stamp files there.
681 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
682 [# Compute $1's index in $config_headers.
683 _am_arg=$1
684 _am_stamp_count=1
685 for _am_header in $config_headers :; do
686 case $_am_header in
687 $_am_arg | $_am_arg:* )
688 break ;;
689 * )
690 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
691 esac
692 done
693 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
694
695 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
696 #
697 # This file is free software; the Free Software Foundation
698 # gives unlimited permission to copy and/or distribute it,
699 # with or without modifications, as long as this notice is preserved.
700
701 # AM_PROG_INSTALL_SH
702 # ------------------
703 # Define $install_sh.
704 AC_DEFUN([AM_PROG_INSTALL_SH],
705 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
706 if test x"${install_sh+set}" != xset; then
707 case $am_aux_dir in
708 *\ * | *\ *)
709 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
710 *)
711 install_sh="\${SHELL} $am_aux_dir/install-sh"
712 esac
713 fi
714 AC_SUBST([install_sh])])
715
716 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
717 #
718 # This file is free software; the Free Software Foundation
719 # gives unlimited permission to copy and/or distribute it,
720 # with or without modifications, as long as this notice is preserved.
721
722 # Check whether the underlying file-system supports filenames
723 # with a leading dot. For instance MS-DOS doesn't.
724 AC_DEFUN([AM_SET_LEADING_DOT],
725 [rm -rf .tst 2>/dev/null
726 mkdir .tst 2>/dev/null
727 if test -d .tst; then
728 am__leading_dot=.
729 else
730 am__leading_dot=_
731 fi
732 rmdir .tst 2>/dev/null
733 AC_SUBST([am__leading_dot])])
734
735 # Check to see how 'make' treats includes. -*- Autoconf -*-
736
737 # Copyright (C) 2001-2018 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_MAKE_INCLUDE()
744 # -----------------
745 # Check whether make has an 'include' directive that can support all
746 # the idioms we need for our automatic dependency tracking code.
747 AC_DEFUN([AM_MAKE_INCLUDE],
748 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
749 cat > confinc.mk << 'END'
750 am__doit:
751 @echo this is the am__doit target >confinc.out
752 .PHONY: am__doit
753 END
754 am__include="#"
755 am__quote=
756 # BSD make does it like this.
757 echo '.include "confinc.mk" # ignored' > confmf.BSD
758 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
759 echo 'include confinc.mk # ignored' > confmf.GNU
760 _am_result=no
761 for s in GNU BSD; do
762 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
763 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
764 ['0:this is the am__doit target'],
765 [AS_CASE([$s],
766 [BSD], [am__include='.include' am__quote='"'],
767 [am__include='include' am__quote=''])])
768 if test "$am__include" != "#"; then
769 _am_result="yes ($s style)"
770 break
771 fi
772 done
773 rm -f confinc.* confmf.*
774 AC_MSG_RESULT([${_am_result}])
775 AC_SUBST([am__include])])
776 AC_SUBST([am__quote])])
777
778 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
779
780 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
781 #
782 # This file is free software; the Free Software Foundation
783 # gives unlimited permission to copy and/or distribute it,
784 # with or without modifications, as long as this notice is preserved.
785
786 # AM_MISSING_PROG(NAME, PROGRAM)
787 # ------------------------------
788 AC_DEFUN([AM_MISSING_PROG],
789 [AC_REQUIRE([AM_MISSING_HAS_RUN])
790 $1=${$1-"${am_missing_run}$2"}
791 AC_SUBST($1)])
792
793 # AM_MISSING_HAS_RUN
794 # ------------------
795 # Define MISSING if not defined so far and test if it is modern enough.
796 # If it is, set am_missing_run to use it, otherwise, to nothing.
797 AC_DEFUN([AM_MISSING_HAS_RUN],
798 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
799 AC_REQUIRE_AUX_FILE([missing])dnl
800 if test x"${MISSING+set}" != xset; then
801 case $am_aux_dir in
802 *\ * | *\ *)
803 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
804 *)
805 MISSING="\${SHELL} $am_aux_dir/missing" ;;
806 esac
807 fi
808 # Use eval to expand $SHELL
809 if eval "$MISSING --is-lightweight"; then
810 am_missing_run="$MISSING "
811 else
812 am_missing_run=
813 AC_MSG_WARN(['missing' script is too old or missing])
814 fi
815 ])
816
817 # Helper functions for option handling. -*- Autoconf -*-
818
819 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
820 #
821 # This file is free software; the Free Software Foundation
822 # gives unlimited permission to copy and/or distribute it,
823 # with or without modifications, as long as this notice is preserved.
824
825 # _AM_MANGLE_OPTION(NAME)
826 # -----------------------
827 AC_DEFUN([_AM_MANGLE_OPTION],
828 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
829
830 # _AM_SET_OPTION(NAME)
831 # --------------------
832 # Set option NAME. Presently that only means defining a flag for this option.
833 AC_DEFUN([_AM_SET_OPTION],
834 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
835
836 # _AM_SET_OPTIONS(OPTIONS)
837 # ------------------------
838 # OPTIONS is a space-separated list of Automake options.
839 AC_DEFUN([_AM_SET_OPTIONS],
840 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
841
842 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
843 # -------------------------------------------
844 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
845 AC_DEFUN([_AM_IF_OPTION],
846 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
847
848 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
849 #
850 # This file is free software; the Free Software Foundation
851 # gives unlimited permission to copy and/or distribute it,
852 # with or without modifications, as long as this notice is preserved.
853
854 # _AM_PROG_CC_C_O
855 # ---------------
856 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
857 # to automatically call this.
858 AC_DEFUN([_AM_PROG_CC_C_O],
859 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
860 AC_REQUIRE_AUX_FILE([compile])dnl
861 AC_LANG_PUSH([C])dnl
862 AC_CACHE_CHECK(
863 [whether $CC understands -c and -o together],
864 [am_cv_prog_cc_c_o],
865 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
866 # Make sure it works both with $CC and with simple cc.
867 # Following AC_PROG_CC_C_O, we do the test twice because some
868 # compilers refuse to overwrite an existing .o file with -o,
869 # though they will create one.
870 am_cv_prog_cc_c_o=yes
871 for am_i in 1 2; do
872 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
873 && test -f conftest2.$ac_objext; then
874 : OK
875 else
876 am_cv_prog_cc_c_o=no
877 break
878 fi
879 done
880 rm -f core conftest*
881 unset am_i])
882 if test "$am_cv_prog_cc_c_o" != yes; then
883 # Losing compiler, so override with the script.
884 # FIXME: It is wrong to rewrite CC.
885 # But if we don't then we get into trouble of one sort or another.
886 # A longer-term fix would be to have automake use am__CC in this case,
887 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
888 CC="$am_aux_dir/compile $CC"
889 fi
890 AC_LANG_POP([C])])
891
892 # For backward compatibility.
893 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
894
895 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
896 #
897 # This file is free software; the Free Software Foundation
898 # gives unlimited permission to copy and/or distribute it,
899 # with or without modifications, as long as this notice is preserved.
900
901 # AM_RUN_LOG(COMMAND)
902 # -------------------
903 # Run COMMAND, save the exit status in ac_status, and log it.
904 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
905 AC_DEFUN([AM_RUN_LOG],
906 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
907 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
908 ac_status=$?
909 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
910 (exit $ac_status); }])
911
912 # Check to make sure that the build environment is sane. -*- Autoconf -*-
913
914 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
915 #
916 # This file is free software; the Free Software Foundation
917 # gives unlimited permission to copy and/or distribute it,
918 # with or without modifications, as long as this notice is preserved.
919
920 # AM_SANITY_CHECK
921 # ---------------
922 AC_DEFUN([AM_SANITY_CHECK],
923 [AC_MSG_CHECKING([whether build environment is sane])
924 # Reject unsafe characters in $srcdir or the absolute working directory
925 # name. Accept space and tab only in the latter.
926 am_lf='
927 '
928 case `pwd` in
929 *[[\\\"\#\$\&\'\`$am_lf]]*)
930 AC_MSG_ERROR([unsafe absolute working directory name]);;
931 esac
932 case $srcdir in
933 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
934 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
935 esac
936
937 # Do 'set' in a subshell so we don't clobber the current shell's
938 # arguments. Must try -L first in case configure is actually a
939 # symlink; some systems play weird games with the mod time of symlinks
940 # (eg FreeBSD returns the mod time of the symlink's containing
941 # directory).
942 if (
943 am_has_slept=no
944 for am_try in 1 2; do
945 echo "timestamp, slept: $am_has_slept" > conftest.file
946 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
947 if test "$[*]" = "X"; then
948 # -L didn't work.
949 set X `ls -t "$srcdir/configure" conftest.file`
950 fi
951 if test "$[*]" != "X $srcdir/configure conftest.file" \
952 && test "$[*]" != "X conftest.file $srcdir/configure"; then
953
954 # If neither matched, then we have a broken ls. This can happen
955 # if, for instance, CONFIG_SHELL is bash and it inherits a
956 # broken ls alias from the environment. This has actually
957 # happened. Such a system could not be considered "sane".
958 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
959 alias in your environment])
960 fi
961 if test "$[2]" = conftest.file || test $am_try -eq 2; then
962 break
963 fi
964 # Just in case.
965 sleep 1
966 am_has_slept=yes
967 done
968 test "$[2]" = conftest.file
969 )
970 then
971 # Ok.
972 :
973 else
974 AC_MSG_ERROR([newly created file is older than distributed files!
975 Check your system clock])
976 fi
977 AC_MSG_RESULT([yes])
978 # If we didn't sleep, we still need to ensure time stamps of config.status and
979 # generated files are strictly newer.
980 am_sleep_pid=
981 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
982 ( sleep 1 ) &
983 am_sleep_pid=$!
984 fi
985 AC_CONFIG_COMMANDS_PRE(
986 [AC_MSG_CHECKING([that generated files are newer than configure])
987 if test -n "$am_sleep_pid"; then
988 # Hide warnings about reused PIDs.
989 wait $am_sleep_pid 2>/dev/null
990 fi
991 AC_MSG_RESULT([done])])
992 rm -f conftest.file
993 ])
994
995 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
996 #
997 # This file is free software; the Free Software Foundation
998 # gives unlimited permission to copy and/or distribute it,
999 # with or without modifications, as long as this notice is preserved.
1000
1001 # AM_SILENT_RULES([DEFAULT])
1002 # --------------------------
1003 # Enable less verbose build rules; with the default set to DEFAULT
1004 # ("yes" being less verbose, "no" or empty being verbose).
1005 AC_DEFUN([AM_SILENT_RULES],
1006 [AC_ARG_ENABLE([silent-rules], [dnl
1007 AS_HELP_STRING(
1008 [--enable-silent-rules],
1009 [less verbose build output (undo: "make V=1")])
1010 AS_HELP_STRING(
1011 [--disable-silent-rules],
1012 [verbose build output (undo: "make V=0")])dnl
1013 ])
1014 case $enable_silent_rules in @%:@ (((
1015 yes) AM_DEFAULT_VERBOSITY=0;;
1016 no) AM_DEFAULT_VERBOSITY=1;;
1017 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1018 esac
1019 dnl
1020 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1021 dnl do not support nested variable expansions.
1022 dnl See automake bug#9928 and bug#10237.
1023 am_make=${MAKE-make}
1024 AC_CACHE_CHECK([whether $am_make supports nested variables],
1025 [am_cv_make_support_nested_variables],
1026 [if AS_ECHO([['TRUE=$(BAR$(V))
1027 BAR0=false
1028 BAR1=true
1029 V=1
1030 am__doit:
1031 @$(TRUE)
1032 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1033 am_cv_make_support_nested_variables=yes
1034 else
1035 am_cv_make_support_nested_variables=no
1036 fi])
1037 if test $am_cv_make_support_nested_variables = yes; then
1038 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1039 AM_V='$(V)'
1040 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1041 else
1042 AM_V=$AM_DEFAULT_VERBOSITY
1043 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1044 fi
1045 AC_SUBST([AM_V])dnl
1046 AM_SUBST_NOTMAKE([AM_V])dnl
1047 AC_SUBST([AM_DEFAULT_V])dnl
1048 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1049 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1050 AM_BACKSLASH='\'
1051 AC_SUBST([AM_BACKSLASH])dnl
1052 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1053 ])
1054
1055 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
1056 #
1057 # This file is free software; the Free Software Foundation
1058 # gives unlimited permission to copy and/or distribute it,
1059 # with or without modifications, as long as this notice is preserved.
1060
1061 # AM_PROG_INSTALL_STRIP
1062 # ---------------------
1063 # One issue with vendor 'install' (even GNU) is that you can't
1064 # specify the program used to strip binaries. This is especially
1065 # annoying in cross-compiling environments, where the build's strip
1066 # is unlikely to handle the host's binaries.
1067 # Fortunately install-sh will honor a STRIPPROG variable, so we
1068 # always use install-sh in "make install-strip", and initialize
1069 # STRIPPROG with the value of the STRIP variable (set by the user).
1070 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1071 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1072 # Installed binaries are usually stripped using 'strip' when the user
1073 # run "make install-strip". However 'strip' might not be the right
1074 # tool to use in cross-compilation environments, therefore Automake
1075 # will honor the 'STRIP' environment variable to overrule this program.
1076 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1077 if test "$cross_compiling" != no; then
1078 AC_CHECK_TOOL([STRIP], [strip], :)
1079 fi
1080 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1081 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1082
1083 # Copyright (C) 2006-2018 Free Software Foundation, Inc.
1084 #
1085 # This file is free software; the Free Software Foundation
1086 # gives unlimited permission to copy and/or distribute it,
1087 # with or without modifications, as long as this notice is preserved.
1088
1089 # _AM_SUBST_NOTMAKE(VARIABLE)
1090 # ---------------------------
1091 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1092 # This macro is traced by Automake.
1093 AC_DEFUN([_AM_SUBST_NOTMAKE])
1094
1095 # AM_SUBST_NOTMAKE(VARIABLE)
1096 # --------------------------
1097 # Public sister of _AM_SUBST_NOTMAKE.
1098 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1099
1100 # Check how to create a tarball. -*- Autoconf -*-
1101
1102 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
1103 #
1104 # This file is free software; the Free Software Foundation
1105 # gives unlimited permission to copy and/or distribute it,
1106 # with or without modifications, as long as this notice is preserved.
1107
1108 # _AM_PROG_TAR(FORMAT)
1109 # --------------------
1110 # Check how to create a tarball in format FORMAT.
1111 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1112 #
1113 # Substitute a variable $(am__tar) that is a command
1114 # writing to stdout a FORMAT-tarball containing the directory
1115 # $tardir.
1116 # tardir=directory && $(am__tar) > result.tar
1117 #
1118 # Substitute a variable $(am__untar) that extract such
1119 # a tarball read from stdin.
1120 # $(am__untar) < result.tar
1121 #
1122 AC_DEFUN([_AM_PROG_TAR],
1123 [# Always define AMTAR for backward compatibility. Yes, it's still used
1124 # in the wild :-( We should find a proper way to deprecate it ...
1125 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1126
1127 # We'll loop over all known methods to create a tar archive until one works.
1128 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1129
1130 m4_if([$1], [v7],
1131 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1132
1133 [m4_case([$1],
1134 [ustar],
1135 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1136 # There is notably a 21 bits limit for the UID and the GID. In fact,
1137 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1138 # and bug#13588).
1139 am_max_uid=2097151 # 2^21 - 1
1140 am_max_gid=$am_max_uid
1141 # The $UID and $GID variables are not portable, so we need to resort
1142 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1143 # below are definitely unexpected, so allow the users to see them
1144 # (that is, avoid stderr redirection).
1145 am_uid=`id -u || echo unknown`
1146 am_gid=`id -g || echo unknown`
1147 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1148 if test $am_uid -le $am_max_uid; then
1149 AC_MSG_RESULT([yes])
1150 else
1151 AC_MSG_RESULT([no])
1152 _am_tools=none
1153 fi
1154 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1155 if test $am_gid -le $am_max_gid; then
1156 AC_MSG_RESULT([yes])
1157 else
1158 AC_MSG_RESULT([no])
1159 _am_tools=none
1160 fi],
1161
1162 [pax],
1163 [],
1164
1165 [m4_fatal([Unknown tar format])])
1166
1167 AC_MSG_CHECKING([how to create a $1 tar archive])
1168
1169 # Go ahead even if we have the value already cached. We do so because we
1170 # need to set the values for the 'am__tar' and 'am__untar' variables.
1171 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1172
1173 for _am_tool in $_am_tools; do
1174 case $_am_tool in
1175 gnutar)
1176 for _am_tar in tar gnutar gtar; do
1177 AM_RUN_LOG([$_am_tar --version]) && break
1178 done
1179 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1180 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1181 am__untar="$_am_tar -xf -"
1182 ;;
1183 plaintar)
1184 # Must skip GNU tar: if it does not support --format= it doesn't create
1185 # ustar tarball either.
1186 (tar --version) >/dev/null 2>&1 && continue
1187 am__tar='tar chf - "$$tardir"'
1188 am__tar_='tar chf - "$tardir"'
1189 am__untar='tar xf -'
1190 ;;
1191 pax)
1192 am__tar='pax -L -x $1 -w "$$tardir"'
1193 am__tar_='pax -L -x $1 -w "$tardir"'
1194 am__untar='pax -r'
1195 ;;
1196 cpio)
1197 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1198 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1199 am__untar='cpio -i -H $1 -d'
1200 ;;
1201 none)
1202 am__tar=false
1203 am__tar_=false
1204 am__untar=false
1205 ;;
1206 esac
1207
1208 # If the value was cached, stop now. We just wanted to have am__tar
1209 # and am__untar set.
1210 test -n "${am_cv_prog_tar_$1}" && break
1211
1212 # tar/untar a dummy directory, and stop if the command works.
1213 rm -rf conftest.dir
1214 mkdir conftest.dir
1215 echo GrepMe > conftest.dir/file
1216 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1217 rm -rf conftest.dir
1218 if test -s conftest.tar; then
1219 AM_RUN_LOG([$am__untar <conftest.tar])
1220 AM_RUN_LOG([cat conftest.dir/file])
1221 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1222 fi
1223 done
1224 rm -rf conftest.dir
1225
1226 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1227 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1228
1229 AC_SUBST([am__tar])
1230 AC_SUBST([am__untar])
1231 ]) # _AM_PROG_TAR
1232
1233 m4_include([m4/ax_check_compile_flag.m4])
1234 m4_include([m4/ax_check_sign.m4])
1235 m4_include([m4/ax_compiler_vendor.m4])
1236 m4_include([m4/ax_compiler_version.m4])
1237 m4_include([m4/pc_from_ucontext.m4])
1238 m4_include([m4/pkg.m4])
1239 m4_include([m4/pprint.m4])
1240 m4_include([acinclude.m4])