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source: vbox/trunk/src/libs/libvorbis-1.3.7/aclocal.m4@ 96693

Last change on this file since 96693 was 96468, checked in by vboxsync, 2 years ago

libs/libvorbis-1.3.7: Re-exporting, hopefully this time everything is there. bugref:10275

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527# POSIX will say in a future version that running "rm -f" with no argument
528# is OK; and we want to be able to make that assumption in our Makefile
529# recipes. So use an aggressive probe to check that the usage we want is
530# actually supported "in the wild" to an acceptable degree.
531# See automake bug#10828.
532# To make any issue more visible, cause the running configure to be aborted
533# by default if the 'rm' program in use doesn't match our expectations; the
534# user can still override this though.
535if rm -f && rm -fr && rm -rf; then : OK; else
536 cat >&2 <<'END'
537Oops!
538
539Your 'rm' program seems unable to run without file operands specified
540on the command line, even when the '-f' option is present. This is contrary
541to the behaviour of most rm programs out there, and not conforming with
542the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
543
544Please tell bug-automake@gnu.org about your system, including the value
545of your $PATH and any error possibly output before this message. This
546can help us improve future automake versions.
547
548END
549 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
550 echo 'Configuration will proceed anyway, since you have set the' >&2
551 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
552 echo >&2
553 else
554 cat >&2 <<'END'
555Aborting the configuration process, to ensure you take notice of the issue.
556
557You can download and install GNU coreutils to get an 'rm' implementation
558that behaves properly: <https://www.gnu.org/software/coreutils/>.
559
560If you want to complete the configuration process using your problematic
561'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
562to "yes", and re-run configure.
563
564END
565 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
566 fi
567fi
568dnl The trailing newline in this macro's definition is deliberate, for
569dnl backward compatibility and to allow trailing 'dnl'-style comments
570dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
571])
572
573dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
574dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
575dnl mangled by Autoconf and run in a shell conditional statement.
576m4_define([_AC_COMPILER_EXEEXT],
577m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
578
579# When config.status generates a header, we must update the stamp-h file.
580# This file resides in the same directory as the config header
581# that is generated. The stamp files are numbered to have different names.
582
583# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
584# loop where config.status creates the headers, so we can generate
585# our stamp files there.
586AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
587[# Compute $1's index in $config_headers.
588_am_arg=$1
589_am_stamp_count=1
590for _am_header in $config_headers :; do
591 case $_am_header in
592 $_am_arg | $_am_arg:* )
593 break ;;
594 * )
595 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
596 esac
597done
598echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
599
600# Copyright (C) 2001-2020 Free Software Foundation, Inc.
601#
602# This file is free software; the Free Software Foundation
603# gives unlimited permission to copy and/or distribute it,
604# with or without modifications, as long as this notice is preserved.
605
606# AM_PROG_INSTALL_SH
607# ------------------
608# Define $install_sh.
609AC_DEFUN([AM_PROG_INSTALL_SH],
610[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
611if test x"${install_sh+set}" != xset; then
612 case $am_aux_dir in
613 *\ * | *\ *)
614 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
615 *)
616 install_sh="\${SHELL} $am_aux_dir/install-sh"
617 esac
618fi
619AC_SUBST([install_sh])])
620
621# Copyright (C) 2003-2020 Free Software Foundation, Inc.
622#
623# This file is free software; the Free Software Foundation
624# gives unlimited permission to copy and/or distribute it,
625# with or without modifications, as long as this notice is preserved.
626
627# Check whether the underlying file-system supports filenames
628# with a leading dot. For instance MS-DOS doesn't.
629AC_DEFUN([AM_SET_LEADING_DOT],
630[rm -rf .tst 2>/dev/null
631mkdir .tst 2>/dev/null
632if test -d .tst; then
633 am__leading_dot=.
634else
635 am__leading_dot=_
636fi
637rmdir .tst 2>/dev/null
638AC_SUBST([am__leading_dot])])
639
640# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
641# From Jim Meyering
642
643# Copyright (C) 1996-2020 Free Software Foundation, Inc.
644#
645# This file is free software; the Free Software Foundation
646# gives unlimited permission to copy and/or distribute it,
647# with or without modifications, as long as this notice is preserved.
648
649# AM_MAINTAINER_MODE([DEFAULT-MODE])
650# ----------------------------------
651# Control maintainer-specific portions of Makefiles.
652# Default is to disable them, unless 'enable' is passed literally.
653# For symmetry, 'disable' may be passed as well. Anyway, the user
654# can override the default with the --enable/--disable switch.
655AC_DEFUN([AM_MAINTAINER_MODE],
656[m4_case(m4_default([$1], [disable]),
657 [enable], [m4_define([am_maintainer_other], [disable])],
658 [disable], [m4_define([am_maintainer_other], [enable])],
659 [m4_define([am_maintainer_other], [enable])
660 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
661AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
662 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
663 AC_ARG_ENABLE([maintainer-mode],
664 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
665 am_maintainer_other[ make rules and dependencies not useful
666 (and sometimes confusing) to the casual installer])],
667 [USE_MAINTAINER_MODE=$enableval],
668 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
669 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
670 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
671 MAINT=$MAINTAINER_MODE_TRUE
672 AC_SUBST([MAINT])dnl
673]
674)
675
676# Check to see how 'make' treats includes. -*- Autoconf -*-
677
678# Copyright (C) 2001-2020 Free Software Foundation, Inc.
679#
680# This file is free software; the Free Software Foundation
681# gives unlimited permission to copy and/or distribute it,
682# with or without modifications, as long as this notice is preserved.
683
684# AM_MAKE_INCLUDE()
685# -----------------
686# Check whether make has an 'include' directive that can support all
687# the idioms we need for our automatic dependency tracking code.
688AC_DEFUN([AM_MAKE_INCLUDE],
689[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
690cat > confinc.mk << 'END'
691am__doit:
692 @echo this is the am__doit target >confinc.out
693.PHONY: am__doit
694END
695am__include="#"
696am__quote=
697# BSD make does it like this.
698echo '.include "confinc.mk" # ignored' > confmf.BSD
699# Other make implementations (GNU, Solaris 10, AIX) do it like this.
700echo 'include confinc.mk # ignored' > confmf.GNU
701_am_result=no
702for s in GNU BSD; do
703 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
704 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
705 ['0:this is the am__doit target'],
706 [AS_CASE([$s],
707 [BSD], [am__include='.include' am__quote='"'],
708 [am__include='include' am__quote=''])])
709 if test "$am__include" != "#"; then
710 _am_result="yes ($s style)"
711 break
712 fi
713done
714rm -f confinc.* confmf.*
715AC_MSG_RESULT([${_am_result}])
716AC_SUBST([am__include])])
717AC_SUBST([am__quote])])
718
719# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
720
721# Copyright (C) 1997-2020 Free Software Foundation, Inc.
722#
723# This file is free software; the Free Software Foundation
724# gives unlimited permission to copy and/or distribute it,
725# with or without modifications, as long as this notice is preserved.
726
727# AM_MISSING_PROG(NAME, PROGRAM)
728# ------------------------------
729AC_DEFUN([AM_MISSING_PROG],
730[AC_REQUIRE([AM_MISSING_HAS_RUN])
731$1=${$1-"${am_missing_run}$2"}
732AC_SUBST($1)])
733
734# AM_MISSING_HAS_RUN
735# ------------------
736# Define MISSING if not defined so far and test if it is modern enough.
737# If it is, set am_missing_run to use it, otherwise, to nothing.
738AC_DEFUN([AM_MISSING_HAS_RUN],
739[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
740AC_REQUIRE_AUX_FILE([missing])dnl
741if test x"${MISSING+set}" != xset; then
742 case $am_aux_dir in
743 *\ * | *\ *)
744 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
745 *)
746 MISSING="\${SHELL} $am_aux_dir/missing" ;;
747 esac
748fi
749# Use eval to expand $SHELL
750if eval "$MISSING --is-lightweight"; then
751 am_missing_run="$MISSING "
752else
753 am_missing_run=
754 AC_MSG_WARN(['missing' script is too old or missing])
755fi
756])
757
758# Helper functions for option handling. -*- Autoconf -*-
759
760# Copyright (C) 2001-2020 Free Software Foundation, Inc.
761#
762# This file is free software; the Free Software Foundation
763# gives unlimited permission to copy and/or distribute it,
764# with or without modifications, as long as this notice is preserved.
765
766# _AM_MANGLE_OPTION(NAME)
767# -----------------------
768AC_DEFUN([_AM_MANGLE_OPTION],
769[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
770
771# _AM_SET_OPTION(NAME)
772# --------------------
773# Set option NAME. Presently that only means defining a flag for this option.
774AC_DEFUN([_AM_SET_OPTION],
775[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
776
777# _AM_SET_OPTIONS(OPTIONS)
778# ------------------------
779# OPTIONS is a space-separated list of Automake options.
780AC_DEFUN([_AM_SET_OPTIONS],
781[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
782
783# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
784# -------------------------------------------
785# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
786AC_DEFUN([_AM_IF_OPTION],
787[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
788
789# Copyright (C) 1999-2020 Free Software Foundation, Inc.
790#
791# This file is free software; the Free Software Foundation
792# gives unlimited permission to copy and/or distribute it,
793# with or without modifications, as long as this notice is preserved.
794
795# _AM_PROG_CC_C_O
796# ---------------
797# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
798# to automatically call this.
799AC_DEFUN([_AM_PROG_CC_C_O],
800[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
801AC_REQUIRE_AUX_FILE([compile])dnl
802AC_LANG_PUSH([C])dnl
803AC_CACHE_CHECK(
804 [whether $CC understands -c and -o together],
805 [am_cv_prog_cc_c_o],
806 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
807 # Make sure it works both with $CC and with simple cc.
808 # Following AC_PROG_CC_C_O, we do the test twice because some
809 # compilers refuse to overwrite an existing .o file with -o,
810 # though they will create one.
811 am_cv_prog_cc_c_o=yes
812 for am_i in 1 2; do
813 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
814 && test -f conftest2.$ac_objext; then
815 : OK
816 else
817 am_cv_prog_cc_c_o=no
818 break
819 fi
820 done
821 rm -f core conftest*
822 unset am_i])
823if test "$am_cv_prog_cc_c_o" != yes; then
824 # Losing compiler, so override with the script.
825 # FIXME: It is wrong to rewrite CC.
826 # But if we don't then we get into trouble of one sort or another.
827 # A longer-term fix would be to have automake use am__CC in this case,
828 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
829 CC="$am_aux_dir/compile $CC"
830fi
831AC_LANG_POP([C])])
832
833# For backward compatibility.
834AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
835
836# Copyright (C) 2001-2020 Free Software Foundation, Inc.
837#
838# This file is free software; the Free Software Foundation
839# gives unlimited permission to copy and/or distribute it,
840# with or without modifications, as long as this notice is preserved.
841
842# AM_RUN_LOG(COMMAND)
843# -------------------
844# Run COMMAND, save the exit status in ac_status, and log it.
845# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
846AC_DEFUN([AM_RUN_LOG],
847[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
848 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
849 ac_status=$?
850 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
851 (exit $ac_status); }])
852
853# Check to make sure that the build environment is sane. -*- Autoconf -*-
854
855# Copyright (C) 1996-2020 Free Software Foundation, Inc.
856#
857# This file is free software; the Free Software Foundation
858# gives unlimited permission to copy and/or distribute it,
859# with or without modifications, as long as this notice is preserved.
860
861# AM_SANITY_CHECK
862# ---------------
863AC_DEFUN([AM_SANITY_CHECK],
864[AC_MSG_CHECKING([whether build environment is sane])
865# Reject unsafe characters in $srcdir or the absolute working directory
866# name. Accept space and tab only in the latter.
867am_lf='
868'
869case `pwd` in
870 *[[\\\"\#\$\&\'\`$am_lf]]*)
871 AC_MSG_ERROR([unsafe absolute working directory name]);;
872esac
873case $srcdir in
874 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
875 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
876esac
877
878# Do 'set' in a subshell so we don't clobber the current shell's
879# arguments. Must try -L first in case configure is actually a
880# symlink; some systems play weird games with the mod time of symlinks
881# (eg FreeBSD returns the mod time of the symlink's containing
882# directory).
883if (
884 am_has_slept=no
885 for am_try in 1 2; do
886 echo "timestamp, slept: $am_has_slept" > conftest.file
887 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
888 if test "$[*]" = "X"; then
889 # -L didn't work.
890 set X `ls -t "$srcdir/configure" conftest.file`
891 fi
892 if test "$[*]" != "X $srcdir/configure conftest.file" \
893 && test "$[*]" != "X conftest.file $srcdir/configure"; then
894
895 # If neither matched, then we have a broken ls. This can happen
896 # if, for instance, CONFIG_SHELL is bash and it inherits a
897 # broken ls alias from the environment. This has actually
898 # happened. Such a system could not be considered "sane".
899 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
900 alias in your environment])
901 fi
902 if test "$[2]" = conftest.file || test $am_try -eq 2; then
903 break
904 fi
905 # Just in case.
906 sleep 1
907 am_has_slept=yes
908 done
909 test "$[2]" = conftest.file
910 )
911then
912 # Ok.
913 :
914else
915 AC_MSG_ERROR([newly created file is older than distributed files!
916Check your system clock])
917fi
918AC_MSG_RESULT([yes])
919# If we didn't sleep, we still need to ensure time stamps of config.status and
920# generated files are strictly newer.
921am_sleep_pid=
922if grep 'slept: no' conftest.file >/dev/null 2>&1; then
923 ( sleep 1 ) &
924 am_sleep_pid=$!
925fi
926AC_CONFIG_COMMANDS_PRE(
927 [AC_MSG_CHECKING([that generated files are newer than configure])
928 if test -n "$am_sleep_pid"; then
929 # Hide warnings about reused PIDs.
930 wait $am_sleep_pid 2>/dev/null
931 fi
932 AC_MSG_RESULT([done])])
933rm -f conftest.file
934])
935
936# Copyright (C) 2009-2020 Free Software Foundation, Inc.
937#
938# This file is free software; the Free Software Foundation
939# gives unlimited permission to copy and/or distribute it,
940# with or without modifications, as long as this notice is preserved.
941
942# AM_SILENT_RULES([DEFAULT])
943# --------------------------
944# Enable less verbose build rules; with the default set to DEFAULT
945# ("yes" being less verbose, "no" or empty being verbose).
946AC_DEFUN([AM_SILENT_RULES],
947[AC_ARG_ENABLE([silent-rules], [dnl
948AS_HELP_STRING(
949 [--enable-silent-rules],
950 [less verbose build output (undo: "make V=1")])
951AS_HELP_STRING(
952 [--disable-silent-rules],
953 [verbose build output (undo: "make V=0")])dnl
954])
955case $enable_silent_rules in @%:@ (((
956 yes) AM_DEFAULT_VERBOSITY=0;;
957 no) AM_DEFAULT_VERBOSITY=1;;
958 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
959esac
960dnl
961dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
962dnl do not support nested variable expansions.
963dnl See automake bug#9928 and bug#10237.
964am_make=${MAKE-make}
965AC_CACHE_CHECK([whether $am_make supports nested variables],
966 [am_cv_make_support_nested_variables],
967 [if AS_ECHO([['TRUE=$(BAR$(V))
968BAR0=false
969BAR1=true
970V=1
971am__doit:
972 @$(TRUE)
973.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
974 am_cv_make_support_nested_variables=yes
975else
976 am_cv_make_support_nested_variables=no
977fi])
978if test $am_cv_make_support_nested_variables = yes; then
979 dnl Using '$V' instead of '$(V)' breaks IRIX make.
980 AM_V='$(V)'
981 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
982else
983 AM_V=$AM_DEFAULT_VERBOSITY
984 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
985fi
986AC_SUBST([AM_V])dnl
987AM_SUBST_NOTMAKE([AM_V])dnl
988AC_SUBST([AM_DEFAULT_V])dnl
989AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
990AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
991AM_BACKSLASH='\'
992AC_SUBST([AM_BACKSLASH])dnl
993_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
994])
995
996# Copyright (C) 2001-2020 Free Software Foundation, Inc.
997#
998# This file is free software; the Free Software Foundation
999# gives unlimited permission to copy and/or distribute it,
1000# with or without modifications, as long as this notice is preserved.
1001
1002# AM_PROG_INSTALL_STRIP
1003# ---------------------
1004# One issue with vendor 'install' (even GNU) is that you can't
1005# specify the program used to strip binaries. This is especially
1006# annoying in cross-compiling environments, where the build's strip
1007# is unlikely to handle the host's binaries.
1008# Fortunately install-sh will honor a STRIPPROG variable, so we
1009# always use install-sh in "make install-strip", and initialize
1010# STRIPPROG with the value of the STRIP variable (set by the user).
1011AC_DEFUN([AM_PROG_INSTALL_STRIP],
1012[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1013# Installed binaries are usually stripped using 'strip' when the user
1014# run "make install-strip". However 'strip' might not be the right
1015# tool to use in cross-compilation environments, therefore Automake
1016# will honor the 'STRIP' environment variable to overrule this program.
1017dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1018if test "$cross_compiling" != no; then
1019 AC_CHECK_TOOL([STRIP], [strip], :)
1020fi
1021INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1022AC_SUBST([INSTALL_STRIP_PROGRAM])])
1023
1024# Copyright (C) 2006-2020 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_SUBST_NOTMAKE(VARIABLE)
1031# ---------------------------
1032# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1033# This macro is traced by Automake.
1034AC_DEFUN([_AM_SUBST_NOTMAKE])
1035
1036# AM_SUBST_NOTMAKE(VARIABLE)
1037# --------------------------
1038# Public sister of _AM_SUBST_NOTMAKE.
1039AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1040
1041# Check how to create a tarball. -*- Autoconf -*-
1042
1043# Copyright (C) 2004-2020 Free Software Foundation, Inc.
1044#
1045# This file is free software; the Free Software Foundation
1046# gives unlimited permission to copy and/or distribute it,
1047# with or without modifications, as long as this notice is preserved.
1048
1049# _AM_PROG_TAR(FORMAT)
1050# --------------------
1051# Check how to create a tarball in format FORMAT.
1052# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1053#
1054# Substitute a variable $(am__tar) that is a command
1055# writing to stdout a FORMAT-tarball containing the directory
1056# $tardir.
1057# tardir=directory && $(am__tar) > result.tar
1058#
1059# Substitute a variable $(am__untar) that extract such
1060# a tarball read from stdin.
1061# $(am__untar) < result.tar
1062#
1063AC_DEFUN([_AM_PROG_TAR],
1064[# Always define AMTAR for backward compatibility. Yes, it's still used
1065# in the wild :-( We should find a proper way to deprecate it ...
1066AC_SUBST([AMTAR], ['$${TAR-tar}'])
1067
1068# We'll loop over all known methods to create a tar archive until one works.
1069_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1070
1071m4_if([$1], [v7],
1072 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1073
1074 [m4_case([$1],
1075 [ustar],
1076 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1077 # There is notably a 21 bits limit for the UID and the GID. In fact,
1078 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1079 # and bug#13588).
1080 am_max_uid=2097151 # 2^21 - 1
1081 am_max_gid=$am_max_uid
1082 # The $UID and $GID variables are not portable, so we need to resort
1083 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1084 # below are definitely unexpected, so allow the users to see them
1085 # (that is, avoid stderr redirection).
1086 am_uid=`id -u || echo unknown`
1087 am_gid=`id -g || echo unknown`
1088 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1089 if test $am_uid -le $am_max_uid; then
1090 AC_MSG_RESULT([yes])
1091 else
1092 AC_MSG_RESULT([no])
1093 _am_tools=none
1094 fi
1095 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1096 if test $am_gid -le $am_max_gid; then
1097 AC_MSG_RESULT([yes])
1098 else
1099 AC_MSG_RESULT([no])
1100 _am_tools=none
1101 fi],
1102
1103 [pax],
1104 [],
1105
1106 [m4_fatal([Unknown tar format])])
1107
1108 AC_MSG_CHECKING([how to create a $1 tar archive])
1109
1110 # Go ahead even if we have the value already cached. We do so because we
1111 # need to set the values for the 'am__tar' and 'am__untar' variables.
1112 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1113
1114 for _am_tool in $_am_tools; do
1115 case $_am_tool in
1116 gnutar)
1117 for _am_tar in tar gnutar gtar; do
1118 AM_RUN_LOG([$_am_tar --version]) && break
1119 done
1120 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1121 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1122 am__untar="$_am_tar -xf -"
1123 ;;
1124 plaintar)
1125 # Must skip GNU tar: if it does not support --format= it doesn't create
1126 # ustar tarball either.
1127 (tar --version) >/dev/null 2>&1 && continue
1128 am__tar='tar chf - "$$tardir"'
1129 am__tar_='tar chf - "$tardir"'
1130 am__untar='tar xf -'
1131 ;;
1132 pax)
1133 am__tar='pax -L -x $1 -w "$$tardir"'
1134 am__tar_='pax -L -x $1 -w "$tardir"'
1135 am__untar='pax -r'
1136 ;;
1137 cpio)
1138 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1139 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1140 am__untar='cpio -i -H $1 -d'
1141 ;;
1142 none)
1143 am__tar=false
1144 am__tar_=false
1145 am__untar=false
1146 ;;
1147 esac
1148
1149 # If the value was cached, stop now. We just wanted to have am__tar
1150 # and am__untar set.
1151 test -n "${am_cv_prog_tar_$1}" && break
1152
1153 # tar/untar a dummy directory, and stop if the command works.
1154 rm -rf conftest.dir
1155 mkdir conftest.dir
1156 echo GrepMe > conftest.dir/file
1157 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1158 rm -rf conftest.dir
1159 if test -s conftest.tar; then
1160 AM_RUN_LOG([$am__untar <conftest.tar])
1161 AM_RUN_LOG([cat conftest.dir/file])
1162 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1163 fi
1164 done
1165 rm -rf conftest.dir
1166
1167 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1168 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1169
1170AC_SUBST([am__tar])
1171AC_SUBST([am__untar])
1172]) # _AM_PROG_TAR
1173
1174m4_include([m4/add_cflags.m4])
1175m4_include([m4/libtool.m4])
1176m4_include([m4/ltoptions.m4])
1177m4_include([m4/ltsugar.m4])
1178m4_include([m4/ltversion.m4])
1179m4_include([m4/lt~obsolete.m4])
1180m4_include([m4/ogg.m4])
1181m4_include([m4/pkg.m4])
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