Allow try_split to split RTX_FRAME_RELATED_P insns
[gcc.git] / libgomp / aclocal.m4
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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23 # Copyright (C) 2002-2018 Free Software Foundation, Inc.
24 #
25 # This file is free software; the Free Software Foundation
26 # gives unlimited permission to copy and/or distribute it,
27 # with or without modifications, as long as this notice is preserved.
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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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144 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
145 #
146 # This file is free software; the Free Software Foundation
147 # gives unlimited permission to copy and/or distribute it,
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151 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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333 # Generate code to set up dependency tracking. -*- Autoconf -*-
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335 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
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399 # Do all the work for Automake. -*- Autoconf -*-
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401 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
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403 # This file is free software; the Free Software Foundation
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529 # See automake bug#10828.
530 # To make any issue more visible, cause the running configure to be aborted
531 # by default if the 'rm' program in use doesn't match our expectations; the
532 # user can still override this though.
533 if rm -f && rm -fr && rm -rf; then : OK; else
534 cat >&2 <<'END'
535 Oops!
536
537 Your 'rm' program seems unable to run without file operands specified
538 on the command line, even when the '-f' option is present. This is contrary
539 to the behaviour of most rm programs out there, and not conforming with
540 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
541
542 Please tell bug-automake@gnu.org about your system, including the value
543 of your $PATH and any error possibly output before this message. This
544 can help us improve future automake versions.
545
546 END
547 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
548 echo 'Configuration will proceed anyway, since you have set the' >&2
549 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
550 echo >&2
551 else
552 cat >&2 <<'END'
553 Aborting the configuration process, to ensure you take notice of the issue.
554
555 You can download and install GNU coreutils to get an 'rm' implementation
556 that behaves properly: <https://www.gnu.org/software/coreutils/>.
557
558 If you want to complete the configuration process using your problematic
559 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
560 to "yes", and re-run configure.
561
562 END
563 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
564 fi
565 fi
566 dnl The trailing newline in this macro's definition is deliberate, for
567 dnl backward compatibility and to allow trailing 'dnl'-style comments
568 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
569 ])
570
571 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
572 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
573 dnl mangled by Autoconf and run in a shell conditional statement.
574 m4_define([_AC_COMPILER_EXEEXT],
575 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
576
577 # When config.status generates a header, we must update the stamp-h file.
578 # This file resides in the same directory as the config header
579 # that is generated. The stamp files are numbered to have different names.
580
581 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
582 # loop where config.status creates the headers, so we can generate
583 # our stamp files there.
584 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
585 [# Compute $1's index in $config_headers.
586 _am_arg=$1
587 _am_stamp_count=1
588 for _am_header in $config_headers :; do
589 case $_am_header in
590 $_am_arg | $_am_arg:* )
591 break ;;
592 * )
593 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
594 esac
595 done
596 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
597
598 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
599 #
600 # This file is free software; the Free Software Foundation
601 # gives unlimited permission to copy and/or distribute it,
602 # with or without modifications, as long as this notice is preserved.
603
604 # AM_PROG_INSTALL_SH
605 # ------------------
606 # Define $install_sh.
607 AC_DEFUN([AM_PROG_INSTALL_SH],
608 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
609 if test x"${install_sh+set}" != xset; then
610 case $am_aux_dir in
611 *\ * | *\ *)
612 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
613 *)
614 install_sh="\${SHELL} $am_aux_dir/install-sh"
615 esac
616 fi
617 AC_SUBST([install_sh])])
618
619 # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
620 # From Jim Meyering
621
622 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
623 #
624 # This file is free software; the Free Software Foundation
625 # gives unlimited permission to copy and/or distribute it,
626 # with or without modifications, as long as this notice is preserved.
627
628 # AM_MAINTAINER_MODE([DEFAULT-MODE])
629 # ----------------------------------
630 # Control maintainer-specific portions of Makefiles.
631 # Default is to disable them, unless 'enable' is passed literally.
632 # For symmetry, 'disable' may be passed as well. Anyway, the user
633 # can override the default with the --enable/--disable switch.
634 AC_DEFUN([AM_MAINTAINER_MODE],
635 [m4_case(m4_default([$1], [disable]),
636 [enable], [m4_define([am_maintainer_other], [disable])],
637 [disable], [m4_define([am_maintainer_other], [enable])],
638 [m4_define([am_maintainer_other], [enable])
639 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
640 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
641 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
642 AC_ARG_ENABLE([maintainer-mode],
643 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
644 am_maintainer_other[ make rules and dependencies not useful
645 (and sometimes confusing) to the casual installer])],
646 [USE_MAINTAINER_MODE=$enableval],
647 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
648 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
649 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
650 MAINT=$MAINTAINER_MODE_TRUE
651 AC_SUBST([MAINT])dnl
652 ]
653 )
654
655 # Check to see how 'make' treats includes. -*- Autoconf -*-
656
657 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
658 #
659 # This file is free software; the Free Software Foundation
660 # gives unlimited permission to copy and/or distribute it,
661 # with or without modifications, as long as this notice is preserved.
662
663 # AM_MAKE_INCLUDE()
664 # -----------------
665 # Check whether make has an 'include' directive that can support all
666 # the idioms we need for our automatic dependency tracking code.
667 AC_DEFUN([AM_MAKE_INCLUDE],
668 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
669 cat > confinc.mk << 'END'
670 am__doit:
671 @echo this is the am__doit target >confinc.out
672 .PHONY: am__doit
673 END
674 am__include="#"
675 am__quote=
676 # BSD make does it like this.
677 echo '.include "confinc.mk" # ignored' > confmf.BSD
678 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
679 echo 'include confinc.mk # ignored' > confmf.GNU
680 _am_result=no
681 for s in GNU BSD; do
682 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
683 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
684 ['0:this is the am__doit target'],
685 [AS_CASE([$s],
686 [BSD], [am__include='.include' am__quote='"'],
687 [am__include='include' am__quote=''])])
688 if test "$am__include" != "#"; then
689 _am_result="yes ($s style)"
690 break
691 fi
692 done
693 rm -f confinc.* confmf.*
694 AC_MSG_RESULT([${_am_result}])
695 AC_SUBST([am__include])])
696 AC_SUBST([am__quote])])
697
698 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
699
700 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
701 #
702 # This file is free software; the Free Software Foundation
703 # gives unlimited permission to copy and/or distribute it,
704 # with or without modifications, as long as this notice is preserved.
705
706 # AM_MISSING_PROG(NAME, PROGRAM)
707 # ------------------------------
708 AC_DEFUN([AM_MISSING_PROG],
709 [AC_REQUIRE([AM_MISSING_HAS_RUN])
710 $1=${$1-"${am_missing_run}$2"}
711 AC_SUBST($1)])
712
713 # AM_MISSING_HAS_RUN
714 # ------------------
715 # Define MISSING if not defined so far and test if it is modern enough.
716 # If it is, set am_missing_run to use it, otherwise, to nothing.
717 AC_DEFUN([AM_MISSING_HAS_RUN],
718 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
719 AC_REQUIRE_AUX_FILE([missing])dnl
720 if test x"${MISSING+set}" != xset; then
721 case $am_aux_dir in
722 *\ * | *\ *)
723 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
724 *)
725 MISSING="\${SHELL} $am_aux_dir/missing" ;;
726 esac
727 fi
728 # Use eval to expand $SHELL
729 if eval "$MISSING --is-lightweight"; then
730 am_missing_run="$MISSING "
731 else
732 am_missing_run=
733 AC_MSG_WARN(['missing' script is too old or missing])
734 fi
735 ])
736
737 # Helper functions for option handling. -*- Autoconf -*-
738
739 # Copyright (C) 2001-2018 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_MANGLE_OPTION(NAME)
746 # -----------------------
747 AC_DEFUN([_AM_MANGLE_OPTION],
748 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
749
750 # _AM_SET_OPTION(NAME)
751 # --------------------
752 # Set option NAME. Presently that only means defining a flag for this option.
753 AC_DEFUN([_AM_SET_OPTION],
754 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
755
756 # _AM_SET_OPTIONS(OPTIONS)
757 # ------------------------
758 # OPTIONS is a space-separated list of Automake options.
759 AC_DEFUN([_AM_SET_OPTIONS],
760 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
761
762 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
763 # -------------------------------------------
764 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
765 AC_DEFUN([_AM_IF_OPTION],
766 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
767
768 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
769 #
770 # This file is free software; the Free Software Foundation
771 # gives unlimited permission to copy and/or distribute it,
772 # with or without modifications, as long as this notice is preserved.
773
774 # _AM_PROG_CC_C_O
775 # ---------------
776 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
777 # to automatically call this.
778 AC_DEFUN([_AM_PROG_CC_C_O],
779 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
780 AC_REQUIRE_AUX_FILE([compile])dnl
781 AC_LANG_PUSH([C])dnl
782 AC_CACHE_CHECK(
783 [whether $CC understands -c and -o together],
784 [am_cv_prog_cc_c_o],
785 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
786 # Make sure it works both with $CC and with simple cc.
787 # Following AC_PROG_CC_C_O, we do the test twice because some
788 # compilers refuse to overwrite an existing .o file with -o,
789 # though they will create one.
790 am_cv_prog_cc_c_o=yes
791 for am_i in 1 2; do
792 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
793 && test -f conftest2.$ac_objext; then
794 : OK
795 else
796 am_cv_prog_cc_c_o=no
797 break
798 fi
799 done
800 rm -f core conftest*
801 unset am_i])
802 if test "$am_cv_prog_cc_c_o" != yes; then
803 # Losing compiler, so override with the script.
804 # FIXME: It is wrong to rewrite CC.
805 # But if we don't then we get into trouble of one sort or another.
806 # A longer-term fix would be to have automake use am__CC in this case,
807 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
808 CC="$am_aux_dir/compile $CC"
809 fi
810 AC_LANG_POP([C])])
811
812 # For backward compatibility.
813 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
814
815 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
816 #
817 # This file is free software; the Free Software Foundation
818 # gives unlimited permission to copy and/or distribute it,
819 # with or without modifications, as long as this notice is preserved.
820
821 # AM_RUN_LOG(COMMAND)
822 # -------------------
823 # Run COMMAND, save the exit status in ac_status, and log it.
824 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
825 AC_DEFUN([AM_RUN_LOG],
826 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
827 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
828 ac_status=$?
829 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
830 (exit $ac_status); }])
831
832 # Check to make sure that the build environment is sane. -*- Autoconf -*-
833
834 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
835 #
836 # This file is free software; the Free Software Foundation
837 # gives unlimited permission to copy and/or distribute it,
838 # with or without modifications, as long as this notice is preserved.
839
840 # AM_SANITY_CHECK
841 # ---------------
842 AC_DEFUN([AM_SANITY_CHECK],
843 [AC_MSG_CHECKING([whether build environment is sane])
844 # Reject unsafe characters in $srcdir or the absolute working directory
845 # name. Accept space and tab only in the latter.
846 am_lf='
847 '
848 case `pwd` in
849 *[[\\\"\#\$\&\'\`$am_lf]]*)
850 AC_MSG_ERROR([unsafe absolute working directory name]);;
851 esac
852 case $srcdir in
853 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
854 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
855 esac
856
857 # Do 'set' in a subshell so we don't clobber the current shell's
858 # arguments. Must try -L first in case configure is actually a
859 # symlink; some systems play weird games with the mod time of symlinks
860 # (eg FreeBSD returns the mod time of the symlink's containing
861 # directory).
862 if (
863 am_has_slept=no
864 for am_try in 1 2; do
865 echo "timestamp, slept: $am_has_slept" > conftest.file
866 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
867 if test "$[*]" = "X"; then
868 # -L didn't work.
869 set X `ls -t "$srcdir/configure" conftest.file`
870 fi
871 if test "$[*]" != "X $srcdir/configure conftest.file" \
872 && test "$[*]" != "X conftest.file $srcdir/configure"; then
873
874 # If neither matched, then we have a broken ls. This can happen
875 # if, for instance, CONFIG_SHELL is bash and it inherits a
876 # broken ls alias from the environment. This has actually
877 # happened. Such a system could not be considered "sane".
878 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
879 alias in your environment])
880 fi
881 if test "$[2]" = conftest.file || test $am_try -eq 2; then
882 break
883 fi
884 # Just in case.
885 sleep 1
886 am_has_slept=yes
887 done
888 test "$[2]" = conftest.file
889 )
890 then
891 # Ok.
892 :
893 else
894 AC_MSG_ERROR([newly created file is older than distributed files!
895 Check your system clock])
896 fi
897 AC_MSG_RESULT([yes])
898 # If we didn't sleep, we still need to ensure time stamps of config.status and
899 # generated files are strictly newer.
900 am_sleep_pid=
901 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
902 ( sleep 1 ) &
903 am_sleep_pid=$!
904 fi
905 AC_CONFIG_COMMANDS_PRE(
906 [AC_MSG_CHECKING([that generated files are newer than configure])
907 if test -n "$am_sleep_pid"; then
908 # Hide warnings about reused PIDs.
909 wait $am_sleep_pid 2>/dev/null
910 fi
911 AC_MSG_RESULT([done])])
912 rm -f conftest.file
913 ])
914
915 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
916 #
917 # This file is free software; the Free Software Foundation
918 # gives unlimited permission to copy and/or distribute it,
919 # with or without modifications, as long as this notice is preserved.
920
921 # AM_SILENT_RULES([DEFAULT])
922 # --------------------------
923 # Enable less verbose build rules; with the default set to DEFAULT
924 # ("yes" being less verbose, "no" or empty being verbose).
925 AC_DEFUN([AM_SILENT_RULES],
926 [AC_ARG_ENABLE([silent-rules], [dnl
927 AS_HELP_STRING(
928 [--enable-silent-rules],
929 [less verbose build output (undo: "make V=1")])
930 AS_HELP_STRING(
931 [--disable-silent-rules],
932 [verbose build output (undo: "make V=0")])dnl
933 ])
934 case $enable_silent_rules in @%:@ (((
935 yes) AM_DEFAULT_VERBOSITY=0;;
936 no) AM_DEFAULT_VERBOSITY=1;;
937 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
938 esac
939 dnl
940 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
941 dnl do not support nested variable expansions.
942 dnl See automake bug#9928 and bug#10237.
943 am_make=${MAKE-make}
944 AC_CACHE_CHECK([whether $am_make supports nested variables],
945 [am_cv_make_support_nested_variables],
946 [if AS_ECHO([['TRUE=$(BAR$(V))
947 BAR0=false
948 BAR1=true
949 V=1
950 am__doit:
951 @$(TRUE)
952 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
953 am_cv_make_support_nested_variables=yes
954 else
955 am_cv_make_support_nested_variables=no
956 fi])
957 if test $am_cv_make_support_nested_variables = yes; then
958 dnl Using '$V' instead of '$(V)' breaks IRIX make.
959 AM_V='$(V)'
960 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
961 else
962 AM_V=$AM_DEFAULT_VERBOSITY
963 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
964 fi
965 AC_SUBST([AM_V])dnl
966 AM_SUBST_NOTMAKE([AM_V])dnl
967 AC_SUBST([AM_DEFAULT_V])dnl
968 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
969 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
970 AM_BACKSLASH='\'
971 AC_SUBST([AM_BACKSLASH])dnl
972 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
973 ])
974
975 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
976 #
977 # This file is free software; the Free Software Foundation
978 # gives unlimited permission to copy and/or distribute it,
979 # with or without modifications, as long as this notice is preserved.
980
981 # AM_PROG_INSTALL_STRIP
982 # ---------------------
983 # One issue with vendor 'install' (even GNU) is that you can't
984 # specify the program used to strip binaries. This is especially
985 # annoying in cross-compiling environments, where the build's strip
986 # is unlikely to handle the host's binaries.
987 # Fortunately install-sh will honor a STRIPPROG variable, so we
988 # always use install-sh in "make install-strip", and initialize
989 # STRIPPROG with the value of the STRIP variable (set by the user).
990 AC_DEFUN([AM_PROG_INSTALL_STRIP],
991 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
992 # Installed binaries are usually stripped using 'strip' when the user
993 # run "make install-strip". However 'strip' might not be the right
994 # tool to use in cross-compilation environments, therefore Automake
995 # will honor the 'STRIP' environment variable to overrule this program.
996 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
997 if test "$cross_compiling" != no; then
998 AC_CHECK_TOOL([STRIP], [strip], :)
999 fi
1000 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1001 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1002
1003 # Copyright (C) 2006-2018 Free Software Foundation, Inc.
1004 #
1005 # This file is free software; the Free Software Foundation
1006 # gives unlimited permission to copy and/or distribute it,
1007 # with or without modifications, as long as this notice is preserved.
1008
1009 # _AM_SUBST_NOTMAKE(VARIABLE)
1010 # ---------------------------
1011 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1012 # This macro is traced by Automake.
1013 AC_DEFUN([_AM_SUBST_NOTMAKE])
1014
1015 # AM_SUBST_NOTMAKE(VARIABLE)
1016 # --------------------------
1017 # Public sister of _AM_SUBST_NOTMAKE.
1018 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1019
1020 # Check how to create a tarball. -*- Autoconf -*-
1021
1022 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
1023 #
1024 # This file is free software; the Free Software Foundation
1025 # gives unlimited permission to copy and/or distribute it,
1026 # with or without modifications, as long as this notice is preserved.
1027
1028 # _AM_PROG_TAR(FORMAT)
1029 # --------------------
1030 # Check how to create a tarball in format FORMAT.
1031 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1032 #
1033 # Substitute a variable $(am__tar) that is a command
1034 # writing to stdout a FORMAT-tarball containing the directory
1035 # $tardir.
1036 # tardir=directory && $(am__tar) > result.tar
1037 #
1038 # Substitute a variable $(am__untar) that extract such
1039 # a tarball read from stdin.
1040 # $(am__untar) < result.tar
1041 #
1042 AC_DEFUN([_AM_PROG_TAR],
1043 [# Always define AMTAR for backward compatibility. Yes, it's still used
1044 # in the wild :-( We should find a proper way to deprecate it ...
1045 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1046
1047 # We'll loop over all known methods to create a tar archive until one works.
1048 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1049
1050 m4_if([$1], [v7],
1051 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1052
1053 [m4_case([$1],
1054 [ustar],
1055 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1056 # There is notably a 21 bits limit for the UID and the GID. In fact,
1057 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1058 # and bug#13588).
1059 am_max_uid=2097151 # 2^21 - 1
1060 am_max_gid=$am_max_uid
1061 # The $UID and $GID variables are not portable, so we need to resort
1062 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1063 # below are definitely unexpected, so allow the users to see them
1064 # (that is, avoid stderr redirection).
1065 am_uid=`id -u || echo unknown`
1066 am_gid=`id -g || echo unknown`
1067 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1068 if test $am_uid -le $am_max_uid; then
1069 AC_MSG_RESULT([yes])
1070 else
1071 AC_MSG_RESULT([no])
1072 _am_tools=none
1073 fi
1074 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1075 if test $am_gid -le $am_max_gid; then
1076 AC_MSG_RESULT([yes])
1077 else
1078 AC_MSG_RESULT([no])
1079 _am_tools=none
1080 fi],
1081
1082 [pax],
1083 [],
1084
1085 [m4_fatal([Unknown tar format])])
1086
1087 AC_MSG_CHECKING([how to create a $1 tar archive])
1088
1089 # Go ahead even if we have the value already cached. We do so because we
1090 # need to set the values for the 'am__tar' and 'am__untar' variables.
1091 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1092
1093 for _am_tool in $_am_tools; do
1094 case $_am_tool in
1095 gnutar)
1096 for _am_tar in tar gnutar gtar; do
1097 AM_RUN_LOG([$_am_tar --version]) && break
1098 done
1099 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1100 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1101 am__untar="$_am_tar -xf -"
1102 ;;
1103 plaintar)
1104 # Must skip GNU tar: if it does not support --format= it doesn't create
1105 # ustar tarball either.
1106 (tar --version) >/dev/null 2>&1 && continue
1107 am__tar='tar chf - "$$tardir"'
1108 am__tar_='tar chf - "$tardir"'
1109 am__untar='tar xf -'
1110 ;;
1111 pax)
1112 am__tar='pax -L -x $1 -w "$$tardir"'
1113 am__tar_='pax -L -x $1 -w "$tardir"'
1114 am__untar='pax -r'
1115 ;;
1116 cpio)
1117 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1118 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1119 am__untar='cpio -i -H $1 -d'
1120 ;;
1121 none)
1122 am__tar=false
1123 am__tar_=false
1124 am__untar=false
1125 ;;
1126 esac
1127
1128 # If the value was cached, stop now. We just wanted to have am__tar
1129 # and am__untar set.
1130 test -n "${am_cv_prog_tar_$1}" && break
1131
1132 # tar/untar a dummy directory, and stop if the command works.
1133 rm -rf conftest.dir
1134 mkdir conftest.dir
1135 echo GrepMe > conftest.dir/file
1136 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1137 rm -rf conftest.dir
1138 if test -s conftest.tar; then
1139 AM_RUN_LOG([$am__untar <conftest.tar])
1140 AM_RUN_LOG([cat conftest.dir/file])
1141 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1142 fi
1143 done
1144 rm -rf conftest.dir
1145
1146 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1147 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1148
1149 AC_SUBST([am__tar])
1150 AC_SUBST([am__untar])
1151 ]) # _AM_PROG_TAR
1152
1153 m4_include([../config/acx.m4])
1154 m4_include([../config/ax_count_cpus.m4])
1155 m4_include([../config/depstand.m4])
1156 m4_include([../config/enable.m4])
1157 m4_include([../config/futex.m4])
1158 m4_include([../config/lead-dot.m4])
1159 m4_include([../config/lthostflags.m4])
1160 m4_include([../config/multi.m4])
1161 m4_include([../config/override.m4])
1162 m4_include([../config/tls.m4])
1163 m4_include([../config/toolexeclibdir.m4])
1164 m4_include([../ltoptions.m4])
1165 m4_include([../ltsugar.m4])
1166 m4_include([../ltversion.m4])
1167 m4_include([../lt~obsolete.m4])
1168 m4_include([acinclude.m4])