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1# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
2
3# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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
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22# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
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25# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
26#
27# This program is free software; you can redistribute it and/or modify
28# it under the terms of the GNU General Public License as published by
29# the Free Software Foundation; either version 2 of the License, or
30# (at your option) any later version.
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32# This program is distributed in the hope that it will be useful, but
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35# General Public License for more details.
36#
37# You should have received a copy of the GNU General Public License
38# along with this program; if not, write to the Free Software
39# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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41# As a special exception to the GNU General Public License, if you
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180# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
181#
182# This file is free software; the Free Software Foundation
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565])
566
567# Do all the work for Automake. -*- Autoconf -*-
568
569# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
570# 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
571#
572# This file is free software; the Free Software Foundation
573# gives unlimited permission to copy and/or distribute it,
574# with or without modifications, as long as this notice is preserved.
575
576# serial 16
577
578# This macro actually does too much. Some checks are only needed if
579# your package does certain things. But this isn't really a big deal.
580
581# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
582# AM_INIT_AUTOMAKE([OPTIONS])
583# -----------------------------------------------
584# The call with PACKAGE and VERSION arguments is the old style
585# call (pre autoconf-2.50), which is being phased out. PACKAGE
586# and VERSION should now be passed to AC_INIT and removed from
587# the call to AM_INIT_AUTOMAKE.
588# We support both call styles for the transition. After
589# the next Automake release, Autoconf can make the AC_INIT
590# arguments mandatory, and then we can depend on a new Autoconf
591# release and drop the old call support.
592AC_DEFUN([AM_INIT_AUTOMAKE],
593[AC_PREREQ([2.62])dnl
594dnl Autoconf wants to disallow AM_ names. We explicitly allow
595dnl the ones we care about.
596m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
597AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
598AC_REQUIRE([AC_PROG_INSTALL])dnl
599if test "`cd $srcdir && pwd`" != "`pwd`"; then
600 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
601 # is not polluted with repeated "-I."
602 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
603 # test to see if srcdir already configured
604 if test -f $srcdir/config.status; then
605 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
606 fi
607fi
608
609# test whether we have cygpath
610if test -z "$CYGPATH_W"; then
611 if (cygpath --version) >/dev/null 2>/dev/null; then
612 CYGPATH_W='cygpath -w'
613 else
614 CYGPATH_W=echo
615 fi
616fi
617AC_SUBST([CYGPATH_W])
618
619# Define the identity of the package.
620dnl Distinguish between old-style and new-style calls.
621m4_ifval([$2],
622[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
623 AC_SUBST([PACKAGE], [$1])dnl
624 AC_SUBST([VERSION], [$2])],
625[_AM_SET_OPTIONS([$1])dnl
626dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
627m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
628 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
629 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
630 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
631
632_AM_IF_OPTION([no-define],,
633[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
634 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
635
636# Some tools Automake needs.
637AC_REQUIRE([AM_SANITY_CHECK])dnl
638AC_REQUIRE([AC_ARG_PROGRAM])dnl
639AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
640AM_MISSING_PROG(AUTOCONF, autoconf)
641AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
642AM_MISSING_PROG(AUTOHEADER, autoheader)
643AM_MISSING_PROG(MAKEINFO, makeinfo)
644AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
645AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
646AC_REQUIRE([AM_PROG_MKDIR_P])dnl
647# We need awk for the "check" target. The system "awk" is bad on
648# some platforms.
649AC_REQUIRE([AC_PROG_AWK])dnl
650AC_REQUIRE([AC_PROG_MAKE_SET])dnl
651AC_REQUIRE([AM_SET_LEADING_DOT])dnl
652_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
653 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
654 [_AM_PROG_TAR([v7])])])
655_AM_IF_OPTION([no-dependencies],,
656[AC_PROVIDE_IFELSE([AC_PROG_CC],
657 [_AM_DEPENDENCIES(CC)],
658 [define([AC_PROG_CC],
659 defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
660AC_PROVIDE_IFELSE([AC_PROG_CXX],
661 [_AM_DEPENDENCIES(CXX)],
662 [define([AC_PROG_CXX],
663 defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
664AC_PROVIDE_IFELSE([AC_PROG_OBJC],
665 [_AM_DEPENDENCIES(OBJC)],
666 [define([AC_PROG_OBJC],
667 defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
668])
669_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
670dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
671dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This macro
672dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
673AC_CONFIG_COMMANDS_PRE(dnl
674[m4_provide_if([_AM_COMPILER_EXEEXT],
675 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
676])
677
678dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
679dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
680dnl mangled by Autoconf and run in a shell conditional statement.
681m4_define([_AC_COMPILER_EXEEXT],
682m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
683
684
685# When config.status generates a header, we must update the stamp-h file.
686# This file resides in the same directory as the config header
687# that is generated. The stamp files are numbered to have different names.
688
689# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
690# loop where config.status creates the headers, so we can generate
691# our stamp files there.
692AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
693[# Compute $1's index in $config_headers.
694_am_arg=$1
695_am_stamp_count=1
696for _am_header in $config_headers :; do
697 case $_am_header in
698 $_am_arg | $_am_arg:* )
699 break ;;
700 * )
701 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
702 esac
703done
704echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
705
706# Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc.
707#
708# This file is free software; the Free Software Foundation
709# gives unlimited permission to copy and/or distribute it,
710# with or without modifications, as long as this notice is preserved.
711
712# AM_PROG_INSTALL_SH
713# ------------------
714# Define $install_sh.
715AC_DEFUN([AM_PROG_INSTALL_SH],
716[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
717if test x"${install_sh}" != xset; then
718 case $am_aux_dir in
719 *\ * | *\ *)
720 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
721 *)
722 install_sh="\${SHELL} $am_aux_dir/install-sh"
723 esac
724fi
725AC_SUBST(install_sh)])
726
727# Copyright (C) 2003, 2005 Free Software Foundation, Inc.
728#
729# This file is free software; the Free Software Foundation
730# gives unlimited permission to copy and/or distribute it,
731# with or without modifications, as long as this notice is preserved.
732
733# serial 2
734
735# Check whether the underlying file-system supports filenames
736# with a leading dot. For instance MS-DOS doesn't.
737AC_DEFUN([AM_SET_LEADING_DOT],
738[rm -rf .tst 2>/dev/null
739mkdir .tst 2>/dev/null
740if test -d .tst; then
741 am__leading_dot=.
742else
743 am__leading_dot=_
744fi
745rmdir .tst 2>/dev/null
746AC_SUBST([am__leading_dot])])
747
748# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
749# From Jim Meyering
750
751# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2008
752# Free Software Foundation, Inc.
753#
754# This file is free software; the Free Software Foundation
755# gives unlimited permission to copy and/or distribute it,
756# with or without modifications, as long as this notice is preserved.
757
758# serial 5
759
760# AM_MAINTAINER_MODE([DEFAULT-MODE])
761# ----------------------------------
762# Control maintainer-specific portions of Makefiles.
763# Default is to disable them, unless `enable' is passed literally.
764# For symmetry, `disable' may be passed as well. Anyway, the user
765# can override the default with the --enable/--disable switch.
766AC_DEFUN([AM_MAINTAINER_MODE],
767[m4_case(m4_default([$1], [disable]),
768 [enable], [m4_define([am_maintainer_other], [disable])],
769 [disable], [m4_define([am_maintainer_other], [enable])],
770 [m4_define([am_maintainer_other], [enable])
771 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
772AC_MSG_CHECKING([whether to am_maintainer_other maintainer-specific portions of Makefiles])
773 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
774 AC_ARG_ENABLE([maintainer-mode],
775[ --][am_maintainer_other][-maintainer-mode am_maintainer_other make rules and dependencies not useful
776 (and sometimes confusing) to the casual installer],
777 [USE_MAINTAINER_MODE=$enableval],
778 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
779 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
780 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
781 MAINT=$MAINTAINER_MODE_TRUE
782 AC_SUBST([MAINT])dnl
783]
784)
785
786AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
787
788# Check to see how 'make' treats includes. -*- Autoconf -*-
789
790# Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
791#
792# This file is free software; the Free Software Foundation
793# gives unlimited permission to copy and/or distribute it,
794# with or without modifications, as long as this notice is preserved.
795
796# serial 4
797
798# AM_MAKE_INCLUDE()
799# -----------------
800# Check to see how make treats includes.
801AC_DEFUN([AM_MAKE_INCLUDE],
802[am_make=${MAKE-make}
803cat > confinc << 'END'
804am__doit:
805 @echo this is the am__doit target
806.PHONY: am__doit
807END
808# If we don't find an include directive, just comment out the code.
809AC_MSG_CHECKING([for style of include used by $am_make])
810am__include="#"
811am__quote=
812_am_result=none
813# First try GNU make style include.
814echo "include confinc" > confmf
815# Ignore all kinds of additional output from `make'.
816case `$am_make -s -f confmf 2> /dev/null` in #(
817*the\ am__doit\ target*)
818 am__include=include
819 am__quote=
820 _am_result=GNU
821 ;;
822esac
823# Now try BSD make style include.
824if test "$am__include" = "#"; then
825 echo '.include "confinc"' > confmf
826 case `$am_make -s -f confmf 2> /dev/null` in #(
827 *the\ am__doit\ target*)
828 am__include=.include
829 am__quote="\""
830 _am_result=BSD
831 ;;
832 esac
833fi
834AC_SUBST([am__include])
835AC_SUBST([am__quote])
836AC_MSG_RESULT([$_am_result])
837rm -f confinc confmf
838])
839
840# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
841
842# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
843# Free Software Foundation, Inc.
844#
845# This file is free software; the Free Software Foundation
846# gives unlimited permission to copy and/or distribute it,
847# with or without modifications, as long as this notice is preserved.
848
849# serial 6
850
851# AM_MISSING_PROG(NAME, PROGRAM)
852# ------------------------------
853AC_DEFUN([AM_MISSING_PROG],
854[AC_REQUIRE([AM_MISSING_HAS_RUN])
855$1=${$1-"${am_missing_run}$2"}
856AC_SUBST($1)])
857
858
859# AM_MISSING_HAS_RUN
860# ------------------
861# Define MISSING if not defined so far and test if it supports --run.
862# If it does, set am_missing_run to use it, otherwise, to nothing.
863AC_DEFUN([AM_MISSING_HAS_RUN],
864[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
865AC_REQUIRE_AUX_FILE([missing])dnl
866if test x"${MISSING+set}" != xset; then
867 case $am_aux_dir in
868 *\ * | *\ *)
869 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
870 *)
871 MISSING="\${SHELL} $am_aux_dir/missing" ;;
872 esac
873fi
874# Use eval to expand $SHELL
875if eval "$MISSING --run true"; then
876 am_missing_run="$MISSING --run "
877else
878 am_missing_run=
879 AC_MSG_WARN([`missing' script is too old or missing])
880fi
881])
882
883# Copyright (C) 2003, 2004, 2005, 2006 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_PROG_MKDIR_P
890# ---------------
891# Check for `mkdir -p'.
892AC_DEFUN([AM_PROG_MKDIR_P],
893[AC_PREREQ([2.60])dnl
894AC_REQUIRE([AC_PROG_MKDIR_P])dnl
895dnl Automake 1.8 to 1.9.6 used to define mkdir_p. We now use MKDIR_P,
896dnl while keeping a definition of mkdir_p for backward compatibility.
897dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
898dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
899dnl Makefile.ins that do not define MKDIR_P, so we do our own
900dnl adjustment using top_builddir (which is defined more often than
901dnl MKDIR_P).
902AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
903case $mkdir_p in
904 [[\\/$]]* | ?:[[\\/]]*) ;;
905 */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
906esac
907])
908
909# Helper functions for option handling. -*- Autoconf -*-
910
911# Copyright (C) 2001, 2002, 2003, 2005, 2008 Free Software Foundation, Inc.
912#
913# This file is free software; the Free Software Foundation
914# gives unlimited permission to copy and/or distribute it,
915# with or without modifications, as long as this notice is preserved.
916
917# serial 4
918
919# _AM_MANGLE_OPTION(NAME)
920# -----------------------
921AC_DEFUN([_AM_MANGLE_OPTION],
922[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
923
924# _AM_SET_OPTION(NAME)
925# ------------------------------
926# Set option NAME. Presently that only means defining a flag for this option.
927AC_DEFUN([_AM_SET_OPTION],
928[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
929
930# _AM_SET_OPTIONS(OPTIONS)
931# ----------------------------------
932# OPTIONS is a space-separated list of Automake options.
933AC_DEFUN([_AM_SET_OPTIONS],
934[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
935
936# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
937# -------------------------------------------
938# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
939AC_DEFUN([_AM_IF_OPTION],
940[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
941
942# Check to make sure that the build environment is sane. -*- Autoconf -*-
943
944# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
945# Free Software Foundation, Inc.
946#
947# This file is free software; the Free Software Foundation
948# gives unlimited permission to copy and/or distribute it,
949# with or without modifications, as long as this notice is preserved.
950
951# serial 5
952
953# AM_SANITY_CHECK
954# ---------------
955AC_DEFUN([AM_SANITY_CHECK],
956[AC_MSG_CHECKING([whether build environment is sane])
957# Just in case
958sleep 1
959echo timestamp > conftest.file
960# Reject unsafe characters in $srcdir or the absolute working directory
961# name. Accept space and tab only in the latter.
962am_lf='
963'
964case `pwd` in
965 *[[\\\"\#\$\&\'\`$am_lf]]*)
966 AC_MSG_ERROR([unsafe absolute working directory name]);;
967esac
968case $srcdir in
969 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
970 AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
971esac
972
973# Do `set' in a subshell so we don't clobber the current shell's
974# arguments. Must try -L first in case configure is actually a
975# symlink; some systems play weird games with the mod time of symlinks
976# (eg FreeBSD returns the mod time of the symlink's containing
977# directory).
978if (
979 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
980 if test "$[*]" = "X"; then
981 # -L didn't work.
982 set X `ls -t "$srcdir/configure" conftest.file`
983 fi
984 rm -f conftest.file
985 if test "$[*]" != "X $srcdir/configure conftest.file" \
986 && test "$[*]" != "X conftest.file $srcdir/configure"; then
987
988 # If neither matched, then we have a broken ls. This can happen
989 # if, for instance, CONFIG_SHELL is bash and it inherits a
990 # broken ls alias from the environment. This has actually
991 # happened. Such a system could not be considered "sane".
992 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
993alias in your environment])
994 fi
995
996 test "$[2]" = conftest.file
997 )
998then
999 # Ok.
1000 :
1001else
1002 AC_MSG_ERROR([newly created file is older than distributed files!
1003Check your system clock])
1004fi
1005AC_MSG_RESULT(yes)])
1006
1007# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
1008#
1009# This file is free software; the Free Software Foundation
1010# gives unlimited permission to copy and/or distribute it,
1011# with or without modifications, as long as this notice is preserved.
1012
1013# AM_PROG_INSTALL_STRIP
1014# ---------------------
1015# One issue with vendor `install' (even GNU) is that you can't
1016# specify the program used to strip binaries. This is especially
1017# annoying in cross-compiling environments, where the build's strip
1018# is unlikely to handle the host's binaries.
1019# Fortunately install-sh will honor a STRIPPROG variable, so we
1020# always use install-sh in `make install-strip', and initialize
1021# STRIPPROG with the value of the STRIP variable (set by the user).
1022AC_DEFUN([AM_PROG_INSTALL_STRIP],
1023[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1024# Installed binaries are usually stripped using `strip' when the user
1025# run `make install-strip'. However `strip' might not be the right
1026# tool to use in cross-compilation environments, therefore Automake
1027# will honor the `STRIP' environment variable to overrule this program.
1028dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
1029if test "$cross_compiling" != no; then
1030 AC_CHECK_TOOL([STRIP], [strip], :)
1031fi
1032INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1033AC_SUBST([INSTALL_STRIP_PROGRAM])])
1034
1035# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
1036#
1037# This file is free software; the Free Software Foundation
1038# gives unlimited permission to copy and/or distribute it,
1039# with or without modifications, as long as this notice is preserved.
1040
1041# serial 2
1042
1043# _AM_SUBST_NOTMAKE(VARIABLE)
1044# ---------------------------
1045# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1046# This macro is traced by Automake.
1047AC_DEFUN([_AM_SUBST_NOTMAKE])
1048
1049# AM_SUBST_NOTMAKE(VARIABLE)
1050# ---------------------------
1051# Public sister of _AM_SUBST_NOTMAKE.
1052AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1053
1054# Check how to create a tarball. -*- Autoconf -*-
1055
1056# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
1057#
1058# This file is free software; the Free Software Foundation
1059# gives unlimited permission to copy and/or distribute it,
1060# with or without modifications, as long as this notice is preserved.
1061
1062# serial 2
1063
1064# _AM_PROG_TAR(FORMAT)
1065# --------------------
1066# Check how to create a tarball in format FORMAT.
1067# FORMAT should be one of `v7', `ustar', or `pax'.
1068#
1069# Substitute a variable $(am__tar) that is a command
1070# writing to stdout a FORMAT-tarball containing the directory
1071# $tardir.
1072# tardir=directory && $(am__tar) > result.tar
1073#
1074# Substitute a variable $(am__untar) that extract such
1075# a tarball read from stdin.
1076# $(am__untar) < result.tar
1077AC_DEFUN([_AM_PROG_TAR],
1078[# Always define AMTAR for backward compatibility.
1079AM_MISSING_PROG([AMTAR], [tar])
1080m4_if([$1], [v7],
1081 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
1082 [m4_case([$1], [ustar],, [pax],,
1083 [m4_fatal([Unknown tar format])])
1084AC_MSG_CHECKING([how to create a $1 tar archive])
1085# Loop over all known methods to create a tar archive until one works.
1086_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1087_am_tools=${am_cv_prog_tar_$1-$_am_tools}
1088# Do not fold the above two line into one, because Tru64 sh and
1089# Solaris sh will not grok spaces in the rhs of `-'.
1090for _am_tool in $_am_tools
1091do
1092 case $_am_tool in
1093 gnutar)
1094 for _am_tar in tar gnutar gtar;
1095 do
1096 AM_RUN_LOG([$_am_tar --version]) && break
1097 done
1098 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1099 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1100 am__untar="$_am_tar -xf -"
1101 ;;
1102 plaintar)
1103 # Must skip GNU tar: if it does not support --format= it doesn't create
1104 # ustar tarball either.
1105 (tar --version) >/dev/null 2>&1 && continue
1106 am__tar='tar chf - "$$tardir"'
1107 am__tar_='tar chf - "$tardir"'
1108 am__untar='tar xf -'
1109 ;;
1110 pax)
1111 am__tar='pax -L -x $1 -w "$$tardir"'
1112 am__tar_='pax -L -x $1 -w "$tardir"'
1113 am__untar='pax -r'
1114 ;;
1115 cpio)
1116 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1117 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1118 am__untar='cpio -i -H $1 -d'
1119 ;;
1120 none)
1121 am__tar=false
1122 am__tar_=false
1123 am__untar=false
1124 ;;
1125 esac
1126
1127 # If the value was cached, stop now. We just wanted to have am__tar
1128 # and am__untar set.
1129 test -n "${am_cv_prog_tar_$1}" && break
1130
1131 # tar/untar a dummy directory, and stop if the command works
1132 rm -rf conftest.dir
1133 mkdir conftest.dir
1134 echo GrepMe > conftest.dir/file
1135 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1136 rm -rf conftest.dir
1137 if test -s conftest.tar; then
1138 AM_RUN_LOG([$am__untar <conftest.tar])
1139 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1140 fi
1141done
1142rm -rf conftest.dir
1143
1144AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1145AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1146AC_SUBST([am__tar])
1147AC_SUBST([am__untar])
1148]) # _AM_PROG_TAR
1149