source: grub-pc/trunk/fuentes/aclocal.m4 @ 22

Last change on this file since 22 was 22, checked in by mabarracus, 4 years ago

updated version and apply net.ifnames=0 into debian/rules

File size: 44.4 KB
Line 
1# generated automatically by aclocal 1.14 -*- Autoconf -*-
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3# Copyright (C) 1996-2013 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
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23# Copyright (C) 2002-2013 Free Software Foundation, Inc.
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354# Generate code to set up dependency tracking.              -*- Autoconf -*-
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356# Copyright (C) 1999-2013 Free Software Foundation, Inc.
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509AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
510AM_MISSING_PROG([AUTOCONF], [autoconf])
511AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
512AM_MISSING_PROG([AUTOHEADER], [autoheader])
513AM_MISSING_PROG([MAKEINFO], [makeinfo])
514AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
515AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
516AC_REQUIRE([AC_PROG_MKDIR_P])dnl
517# For better backward compatibility.  To be removed once Automake 1.9.x
518# dies out for good.  For more background, see:
519# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
520# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
521AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
522# We need awk for the "check" target.  The system "awk" is bad on
523# some platforms.
524AC_REQUIRE([AC_PROG_AWK])dnl
525AC_REQUIRE([AC_PROG_MAKE_SET])dnl
526AC_REQUIRE([AM_SET_LEADING_DOT])dnl
527_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
528              [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
529                             [_AM_PROG_TAR([v7])])])
530_AM_IF_OPTION([no-dependencies],,
531[AC_PROVIDE_IFELSE([AC_PROG_CC],
532                  [_AM_DEPENDENCIES([CC])],
533                  [m4_define([AC_PROG_CC],
534                             m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
535AC_PROVIDE_IFELSE([AC_PROG_CXX],
536                  [_AM_DEPENDENCIES([CXX])],
537                  [m4_define([AC_PROG_CXX],
538                             m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
539AC_PROVIDE_IFELSE([AC_PROG_OBJC],
540                  [_AM_DEPENDENCIES([OBJC])],
541                  [m4_define([AC_PROG_OBJC],
542                             m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
543AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
544                  [_AM_DEPENDENCIES([OBJCXX])],
545                  [m4_define([AC_PROG_OBJCXX],
546                             m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
547])
548AC_REQUIRE([AM_SILENT_RULES])dnl
549dnl The testsuite driver may need to know about EXEEXT, so add the
550dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
551dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
552AC_CONFIG_COMMANDS_PRE(dnl
553[m4_provide_if([_AM_COMPILER_EXEEXT],
554  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
555
556# POSIX will say in a future version that running "rm -f" with no argument
557# is OK; and we want to be able to make that assumption in our Makefile
558# recipes.  So use an aggressive probe to check that the usage we want is
559# actually supported "in the wild" to an acceptable degree.
560# See automake bug#10828.
561# To make any issue more visible, cause the running configure to be aborted
562# by default if the 'rm' program in use doesn't match our expectations; the
563# user can still override this though.
564if rm -f && rm -fr && rm -rf; then : OK; else
565  cat >&2 <<'END'
566Oops!
567
568Your 'rm' program seems unable to run without file operands specified
569on the command line, even when the '-f' option is present.  This is contrary
570to the behaviour of most rm programs out there, and not conforming with
571the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
572
573Please tell bug-automake@gnu.org about your system, including the value
574of your $PATH and any error possibly output before this message.  This
575can help us improve future automake versions.
576
577END
578  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
579    echo 'Configuration will proceed anyway, since you have set the' >&2
580    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
581    echo >&2
582  else
583    cat >&2 <<'END'
584Aborting the configuration process, to ensure you take notice of the issue.
585
586You can download and install GNU coreutils to get an 'rm' implementation
587that behaves properly: <http://www.gnu.org/software/coreutils/>.
588
589If you want to complete the configuration process using your problematic
590'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
591to "yes", and re-run configure.
592
593END
594    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
595  fi
596fi])
597
598dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
599dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
600dnl mangled by Autoconf and run in a shell conditional statement.
601m4_define([_AC_COMPILER_EXEEXT],
602m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
603
604# When config.status generates a header, we must update the stamp-h file.
605# This file resides in the same directory as the config header
606# that is generated.  The stamp files are numbered to have different names.
607
608# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
609# loop where config.status creates the headers, so we can generate
610# our stamp files there.
611AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
612[# Compute $1's index in $config_headers.
613_am_arg=$1
614_am_stamp_count=1
615for _am_header in $config_headers :; do
616  case $_am_header in
617    $_am_arg | $_am_arg:* )
618      break ;;
619    * )
620      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
621  esac
622done
623echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
624
625# Copyright (C) 2001-2013 Free Software Foundation, Inc.
626#
627# This file is free software; the Free Software Foundation
628# gives unlimited permission to copy and/or distribute it,
629# with or without modifications, as long as this notice is preserved.
630
631# AM_PROG_INSTALL_SH
632# ------------------
633# Define $install_sh.
634AC_DEFUN([AM_PROG_INSTALL_SH],
635[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
636if test x"${install_sh}" != xset; then
637  case $am_aux_dir in
638  *\ * | *\     *)
639    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
640  *)
641    install_sh="\${SHELL} $am_aux_dir/install-sh"
642  esac
643fi
644AC_SUBST([install_sh])])
645
646# Copyright (C) 2003-2013 Free Software Foundation, Inc.
647#
648# This file is free software; the Free Software Foundation
649# gives unlimited permission to copy and/or distribute it,
650# with or without modifications, as long as this notice is preserved.
651
652# Check whether the underlying file-system supports filenames
653# with a leading dot.  For instance MS-DOS doesn't.
654AC_DEFUN([AM_SET_LEADING_DOT],
655[rm -rf .tst 2>/dev/null
656mkdir .tst 2>/dev/null
657if test -d .tst; then
658  am__leading_dot=.
659else
660  am__leading_dot=_
661fi
662rmdir .tst 2>/dev/null
663AC_SUBST([am__leading_dot])])
664
665# Check to see how 'make' treats includes.                  -*- Autoconf -*-
666
667# Copyright (C) 2001-2013 Free Software Foundation, Inc.
668#
669# This file is free software; the Free Software Foundation
670# gives unlimited permission to copy and/or distribute it,
671# with or without modifications, as long as this notice is preserved.
672
673# AM_MAKE_INCLUDE()
674# -----------------
675# Check to see how make treats includes.
676AC_DEFUN([AM_MAKE_INCLUDE],
677[am_make=${MAKE-make}
678cat > confinc << 'END'
679am__doit:
680        @echo this is the am__doit target
681.PHONY: am__doit
682END
683# If we don't find an include directive, just comment out the code.
684AC_MSG_CHECKING([for style of include used by $am_make])
685am__include="#"
686am__quote=
687_am_result=none
688# First try GNU make style include.
689echo "include confinc" > confmf
690# Ignore all kinds of additional output from 'make'.
691case `$am_make -s -f confmf 2> /dev/null` in #(
692*the\ am__doit\ target*)
693  am__include=include
694  am__quote=
695  _am_result=GNU
696  ;;
697esac
698# Now try BSD make style include.
699if test "$am__include" = "#"; then
700   echo '.include "confinc"' > confmf
701   case `$am_make -s -f confmf 2> /dev/null` in #(
702   *the\ am__doit\ target*)
703     am__include=.include
704     am__quote="\""
705     _am_result=BSD
706     ;;
707   esac
708fi
709AC_SUBST([am__include])
710AC_SUBST([am__quote])
711AC_MSG_RESULT([$_am_result])
712rm -f confinc confmf
713])
714
715# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
716
717# Copyright (C) 1997-2013 Free Software Foundation, Inc.
718#
719# This file is free software; the Free Software Foundation
720# gives unlimited permission to copy and/or distribute it,
721# with or without modifications, as long as this notice is preserved.
722
723# AM_MISSING_PROG(NAME, PROGRAM)
724# ------------------------------
725AC_DEFUN([AM_MISSING_PROG],
726[AC_REQUIRE([AM_MISSING_HAS_RUN])
727$1=${$1-"${am_missing_run}$2"}
728AC_SUBST($1)])
729
730# AM_MISSING_HAS_RUN
731# ------------------
732# Define MISSING if not defined so far and test if it is modern enough.
733# If it is, set am_missing_run to use it, otherwise, to nothing.
734AC_DEFUN([AM_MISSING_HAS_RUN],
735[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
736AC_REQUIRE_AUX_FILE([missing])dnl
737if test x"${MISSING+set}" != xset; then
738  case $am_aux_dir in
739  *\ * | *\     *)
740    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
741  *)
742    MISSING="\${SHELL} $am_aux_dir/missing" ;;
743  esac
744fi
745# Use eval to expand $SHELL
746if eval "$MISSING --is-lightweight"; then
747  am_missing_run="$MISSING "
748else
749  am_missing_run=
750  AC_MSG_WARN(['missing' script is too old or missing])
751fi
752])
753
754# Helper functions for option handling.                     -*- Autoconf -*-
755
756# Copyright (C) 2001-2013 Free Software Foundation, Inc.
757#
758# This file is free software; the Free Software Foundation
759# gives unlimited permission to copy and/or distribute it,
760# with or without modifications, as long as this notice is preserved.
761
762# _AM_MANGLE_OPTION(NAME)
763# -----------------------
764AC_DEFUN([_AM_MANGLE_OPTION],
765[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
766
767# _AM_SET_OPTION(NAME)
768# --------------------
769# Set option NAME.  Presently that only means defining a flag for this option.
770AC_DEFUN([_AM_SET_OPTION],
771[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
772
773# _AM_SET_OPTIONS(OPTIONS)
774# ------------------------
775# OPTIONS is a space-separated list of Automake options.
776AC_DEFUN([_AM_SET_OPTIONS],
777[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
778
779# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
780# -------------------------------------------
781# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
782AC_DEFUN([_AM_IF_OPTION],
783[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
784
785# Copyright (C) 1999-2013 Free Software Foundation, Inc.
786#
787# This file is free software; the Free Software Foundation
788# gives unlimited permission to copy and/or distribute it,
789# with or without modifications, as long as this notice is preserved.
790
791# _AM_PROG_CC_C_O
792# ---------------
793# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
794# to automatically call this.
795AC_DEFUN([_AM_PROG_CC_C_O],
796[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
797AC_REQUIRE_AUX_FILE([compile])dnl
798AC_LANG_PUSH([C])dnl
799AC_CACHE_CHECK(
800  [whether $CC understands -c and -o together],
801  [am_cv_prog_cc_c_o],
802  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
803  # Make sure it works both with $CC and with simple cc.
804  # Following AC_PROG_CC_C_O, we do the test twice because some
805  # compilers refuse to overwrite an existing .o file with -o,
806  # though they will create one.
807  am_cv_prog_cc_c_o=yes
808  for am_i in 1 2; do
809    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
810         && test -f conftest2.$ac_objext; then
811      : OK
812    else
813      am_cv_prog_cc_c_o=no
814      break
815    fi
816  done
817  rm -f core conftest*
818  unset am_i])
819if test "$am_cv_prog_cc_c_o" != yes; then
820   # Losing compiler, so override with the script.
821   # FIXME: It is wrong to rewrite CC.
822   # But if we don't then we get into trouble of one sort or another.
823   # A longer-term fix would be to have automake use am__CC in this case,
824   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
825   CC="$am_aux_dir/compile $CC"
826fi
827AC_LANG_POP([C])])
828
829# For backward compatibility.
830AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
831
832# Copyright (C) 2001-2013 Free Software Foundation, Inc.
833#
834# This file is free software; the Free Software Foundation
835# gives unlimited permission to copy and/or distribute it,
836# with or without modifications, as long as this notice is preserved.
837
838# AM_RUN_LOG(COMMAND)
839# -------------------
840# Run COMMAND, save the exit status in ac_status, and log it.
841# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
842AC_DEFUN([AM_RUN_LOG],
843[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
844   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
845   ac_status=$?
846   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
847   (exit $ac_status); }])
848
849# Check to make sure that the build environment is sane.    -*- Autoconf -*-
850
851# Copyright (C) 1996-2013 Free Software Foundation, Inc.
852#
853# This file is free software; the Free Software Foundation
854# gives unlimited permission to copy and/or distribute it,
855# with or without modifications, as long as this notice is preserved.
856
857# AM_SANITY_CHECK
858# ---------------
859AC_DEFUN([AM_SANITY_CHECK],
860[AC_MSG_CHECKING([whether build environment is sane])
861# Reject unsafe characters in $srcdir or the absolute working directory
862# name.  Accept space and tab only in the latter.
863am_lf='
864'
865case `pwd` in
866  *[[\\\"\#\$\&\'\`$am_lf]]*)
867    AC_MSG_ERROR([unsafe absolute working directory name]);;
868esac
869case $srcdir in
870  *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
871    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
872esac
873
874# Do 'set' in a subshell so we don't clobber the current shell's
875# arguments.  Must try -L first in case configure is actually a
876# symlink; some systems play weird games with the mod time of symlinks
877# (eg FreeBSD returns the mod time of the symlink's containing
878# directory).
879if (
880   am_has_slept=no
881   for am_try in 1 2; do
882     echo "timestamp, slept: $am_has_slept" > conftest.file
883     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
884     if test "$[*]" = "X"; then
885        # -L didn't work.
886        set X `ls -t "$srcdir/configure" conftest.file`
887     fi
888     if test "$[*]" != "X $srcdir/configure conftest.file" \
889        && test "$[*]" != "X conftest.file $srcdir/configure"; then
890
891        # If neither matched, then we have a broken ls.  This can happen
892        # if, for instance, CONFIG_SHELL is bash and it inherits a
893        # broken ls alias from the environment.  This has actually
894        # happened.  Such a system could not be considered "sane".
895        AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
896  alias in your environment])
897     fi
898     if test "$[2]" = conftest.file || test $am_try -eq 2; then
899       break
900     fi
901     # Just in case.
902     sleep 1
903     am_has_slept=yes
904   done
905   test "$[2]" = conftest.file
906   )
907then
908   # Ok.
909   :
910else
911   AC_MSG_ERROR([newly created file is older than distributed files!
912Check your system clock])
913fi
914AC_MSG_RESULT([yes])
915# If we didn't sleep, we still need to ensure time stamps of config.status and
916# generated files are strictly newer.
917am_sleep_pid=
918if grep 'slept: no' conftest.file >/dev/null 2>&1; then
919  ( sleep 1 ) &
920  am_sleep_pid=$!
921fi
922AC_CONFIG_COMMANDS_PRE(
923  [AC_MSG_CHECKING([that generated files are newer than configure])
924   if test -n "$am_sleep_pid"; then
925     # Hide warnings about reused PIDs.
926     wait $am_sleep_pid 2>/dev/null
927   fi
928   AC_MSG_RESULT([done])])
929rm -f conftest.file
930])
931
932# Copyright (C) 2009-2013 Free Software Foundation, Inc.
933#
934# This file is free software; the Free Software Foundation
935# gives unlimited permission to copy and/or distribute it,
936# with or without modifications, as long as this notice is preserved.
937
938# AM_SILENT_RULES([DEFAULT])
939# --------------------------
940# Enable less verbose build rules; with the default set to DEFAULT
941# ("yes" being less verbose, "no" or empty being verbose).
942AC_DEFUN([AM_SILENT_RULES],
943[AC_ARG_ENABLE([silent-rules], [dnl
944AS_HELP_STRING(
945  [--enable-silent-rules],
946  [less verbose build output (undo: "make V=1")])
947AS_HELP_STRING(
948  [--disable-silent-rules],
949  [verbose build output (undo: "make V=0")])dnl
950])
951case $enable_silent_rules in @%:@ (((
952  yes) AM_DEFAULT_VERBOSITY=0;;
953   no) AM_DEFAULT_VERBOSITY=1;;
954    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
955esac
956dnl
957dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
958dnl do not support nested variable expansions.
959dnl See automake bug#9928 and bug#10237.
960am_make=${MAKE-make}
961AC_CACHE_CHECK([whether $am_make supports nested variables],
962   [am_cv_make_support_nested_variables],
963   [if AS_ECHO([['TRUE=$(BAR$(V))
964BAR0=false
965BAR1=true
966V=1
967am__doit:
968        @$(TRUE)
969.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
970  am_cv_make_support_nested_variables=yes
971else
972  am_cv_make_support_nested_variables=no
973fi])
974if test $am_cv_make_support_nested_variables = yes; then
975  dnl Using '$V' instead of '$(V)' breaks IRIX make.
976  AM_V='$(V)'
977  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
978else
979  AM_V=$AM_DEFAULT_VERBOSITY
980  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
981fi
982AC_SUBST([AM_V])dnl
983AM_SUBST_NOTMAKE([AM_V])dnl
984AC_SUBST([AM_DEFAULT_V])dnl
985AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
986AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
987AM_BACKSLASH='\'
988AC_SUBST([AM_BACKSLASH])dnl
989_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
990])
991
992# Copyright (C) 2001-2013 Free Software Foundation, Inc.
993#
994# This file is free software; the Free Software Foundation
995# gives unlimited permission to copy and/or distribute it,
996# with or without modifications, as long as this notice is preserved.
997
998# AM_PROG_INSTALL_STRIP
999# ---------------------
1000# One issue with vendor 'install' (even GNU) is that you can't
1001# specify the program used to strip binaries.  This is especially
1002# annoying in cross-compiling environments, where the build's strip
1003# is unlikely to handle the host's binaries.
1004# Fortunately install-sh will honor a STRIPPROG variable, so we
1005# always use install-sh in "make install-strip", and initialize
1006# STRIPPROG with the value of the STRIP variable (set by the user).
1007AC_DEFUN([AM_PROG_INSTALL_STRIP],
1008[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1009# Installed binaries are usually stripped using 'strip' when the user
1010# run "make install-strip".  However 'strip' might not be the right
1011# tool to use in cross-compilation environments, therefore Automake
1012# will honor the 'STRIP' environment variable to overrule this program.
1013dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1014if test "$cross_compiling" != no; then
1015  AC_CHECK_TOOL([STRIP], [strip], :)
1016fi
1017INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1018AC_SUBST([INSTALL_STRIP_PROGRAM])])
1019
1020# Copyright (C) 2006-2013 Free Software Foundation, Inc.
1021#
1022# This file is free software; the Free Software Foundation
1023# gives unlimited permission to copy and/or distribute it,
1024# with or without modifications, as long as this notice is preserved.
1025
1026# _AM_SUBST_NOTMAKE(VARIABLE)
1027# ---------------------------
1028# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1029# This macro is traced by Automake.
1030AC_DEFUN([_AM_SUBST_NOTMAKE])
1031
1032# AM_SUBST_NOTMAKE(VARIABLE)
1033# --------------------------
1034# Public sister of _AM_SUBST_NOTMAKE.
1035AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1036
1037# Check how to create a tarball.                            -*- Autoconf -*-
1038
1039# Copyright (C) 2004-2013 Free Software Foundation, Inc.
1040#
1041# This file is free software; the Free Software Foundation
1042# gives unlimited permission to copy and/or distribute it,
1043# with or without modifications, as long as this notice is preserved.
1044
1045# _AM_PROG_TAR(FORMAT)
1046# --------------------
1047# Check how to create a tarball in format FORMAT.
1048# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1049#
1050# Substitute a variable $(am__tar) that is a command
1051# writing to stdout a FORMAT-tarball containing the directory
1052# $tardir.
1053#     tardir=directory && $(am__tar) > result.tar
1054#
1055# Substitute a variable $(am__untar) that extract such
1056# a tarball read from stdin.
1057#     $(am__untar) < result.tar
1058#
1059AC_DEFUN([_AM_PROG_TAR],
1060[# Always define AMTAR for backward compatibility.  Yes, it's still used
1061# in the wild :-(  We should find a proper way to deprecate it ...
1062AC_SUBST([AMTAR], ['$${TAR-tar}'])
1063
1064# We'll loop over all known methods to create a tar archive until one works.
1065_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1066
1067m4_if([$1], [v7],
1068  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1069
1070  [m4_case([$1],
1071    [ustar],
1072     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1073      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1074      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1075      # and bug#13588).
1076      am_max_uid=2097151 # 2^21 - 1
1077      am_max_gid=$am_max_uid
1078      # The $UID and $GID variables are not portable, so we need to resort
1079      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1080      # below are definitely unexpected, so allow the users to see them
1081      # (that is, avoid stderr redirection).
1082      am_uid=`id -u || echo unknown`
1083      am_gid=`id -g || echo unknown`
1084      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1085      if test $am_uid -le $am_max_uid; then
1086         AC_MSG_RESULT([yes])
1087      else
1088         AC_MSG_RESULT([no])
1089         _am_tools=none
1090      fi
1091      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1092      if test $am_gid -le $am_max_gid; then
1093         AC_MSG_RESULT([yes])
1094      else
1095        AC_MSG_RESULT([no])
1096        _am_tools=none
1097      fi],
1098
1099  [pax],
1100    [],
1101
1102  [m4_fatal([Unknown tar format])])
1103
1104  AC_MSG_CHECKING([how to create a $1 tar archive])
1105
1106  # Go ahead even if we have the value already cached.  We do so because we
1107  # need to set the values for the 'am__tar' and 'am__untar' variables.
1108  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1109
1110  for _am_tool in $_am_tools; do
1111    case $_am_tool in
1112    gnutar)
1113      for _am_tar in tar gnutar gtar; do
1114        AM_RUN_LOG([$_am_tar --version]) && break
1115      done
1116      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1117      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1118      am__untar="$_am_tar -xf -"
1119      ;;
1120    plaintar)
1121      # Must skip GNU tar: if it does not support --format= it doesn't create
1122      # ustar tarball either.
1123      (tar --version) >/dev/null 2>&1 && continue
1124      am__tar='tar chf - "$$tardir"'
1125      am__tar_='tar chf - "$tardir"'
1126      am__untar='tar xf -'
1127      ;;
1128    pax)
1129      am__tar='pax -L -x $1 -w "$$tardir"'
1130      am__tar_='pax -L -x $1 -w "$tardir"'
1131      am__untar='pax -r'
1132      ;;
1133    cpio)
1134      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1135      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1136      am__untar='cpio -i -H $1 -d'
1137      ;;
1138    none)
1139      am__tar=false
1140      am__tar_=false
1141      am__untar=false
1142      ;;
1143    esac
1144
1145    # If the value was cached, stop now.  We just wanted to have am__tar
1146    # and am__untar set.
1147    test -n "${am_cv_prog_tar_$1}" && break
1148
1149    # tar/untar a dummy directory, and stop if the command works.
1150    rm -rf conftest.dir
1151    mkdir conftest.dir
1152    echo GrepMe > conftest.dir/file
1153    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1154    rm -rf conftest.dir
1155    if test -s conftest.tar; then
1156      AM_RUN_LOG([$am__untar <conftest.tar])
1157      AM_RUN_LOG([cat conftest.dir/file])
1158      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1159    fi
1160  done
1161  rm -rf conftest.dir
1162
1163  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1164  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1165
1166AC_SUBST([am__tar])
1167AC_SUBST([am__untar])
1168]) # _AM_PROG_TAR
1169
1170m4_include([m4/00gnulib.m4])
1171m4_include([m4/alloca.m4])
1172m4_include([m4/argp.m4])
1173m4_include([m4/btowc.m4])
1174m4_include([m4/codeset.m4])
1175m4_include([m4/configmake.m4])
1176m4_include([m4/dirname.m4])
1177m4_include([m4/double-slash-root.m4])
1178m4_include([m4/eealloc.m4])
1179m4_include([m4/errno_h.m4])
1180m4_include([m4/error.m4])
1181m4_include([m4/exponentd.m4])
1182m4_include([m4/extensions.m4])
1183m4_include([m4/extern-inline.m4])
1184m4_include([m4/fcntl-o.m4])
1185m4_include([m4/float_h.m4])
1186m4_include([m4/fnmatch.m4])
1187m4_include([m4/getdelim.m4])
1188m4_include([m4/getline.m4])
1189m4_include([m4/getopt.m4])
1190m4_include([m4/gettext.m4])
1191m4_include([m4/glibc21.m4])
1192m4_include([m4/gnulib-common.m4])
1193m4_include([m4/gnulib-comp.m4])
1194m4_include([m4/iconv.m4])
1195m4_include([m4/include_next.m4])
1196m4_include([m4/intlmacosx.m4])
1197m4_include([m4/intmax_t.m4])
1198m4_include([m4/inttypes_h.m4])
1199m4_include([m4/langinfo_h.m4])
1200m4_include([m4/lib-ld.m4])
1201m4_include([m4/lib-link.m4])
1202m4_include([m4/lib-prefix.m4])
1203m4_include([m4/libunistring-base.m4])
1204m4_include([m4/localcharset.m4])
1205m4_include([m4/locale-fr.m4])
1206m4_include([m4/locale-ja.m4])
1207m4_include([m4/locale-zh.m4])
1208m4_include([m4/locale_h.m4])
1209m4_include([m4/localeconv.m4])
1210m4_include([m4/longlong.m4])
1211m4_include([m4/malloc.m4])
1212m4_include([m4/mbrtowc.m4])
1213m4_include([m4/mbsinit.m4])
1214m4_include([m4/mbsrtowcs.m4])
1215m4_include([m4/mbstate_t.m4])
1216m4_include([m4/mbswidth.m4])
1217m4_include([m4/mbtowc.m4])
1218m4_include([m4/memchr.m4])
1219m4_include([m4/mempcpy.m4])
1220m4_include([m4/mmap-anon.m4])
1221m4_include([m4/msvc-inval.m4])
1222m4_include([m4/msvc-nothrow.m4])
1223m4_include([m4/multiarch.m4])
1224m4_include([m4/nl_langinfo.m4])
1225m4_include([m4/nls.m4])
1226m4_include([m4/nocrash.m4])
1227m4_include([m4/off_t.m4])
1228m4_include([m4/po.m4])
1229m4_include([m4/printf.m4])
1230m4_include([m4/progtest.m4])
1231m4_include([m4/rawmemchr.m4])
1232m4_include([m4/realloc.m4])
1233m4_include([m4/regex.m4])
1234m4_include([m4/size_max.m4])
1235m4_include([m4/sleep.m4])
1236m4_include([m4/ssize_t.m4])
1237m4_include([m4/stdalign.m4])
1238m4_include([m4/stdbool.m4])
1239m4_include([m4/stddef_h.m4])
1240m4_include([m4/stdint.m4])
1241m4_include([m4/stdint_h.m4])
1242m4_include([m4/stdio_h.m4])
1243m4_include([m4/stdlib_h.m4])
1244m4_include([m4/strcase.m4])
1245m4_include([m4/strchrnul.m4])
1246m4_include([m4/strerror.m4])
1247m4_include([m4/string_h.m4])
1248m4_include([m4/strings_h.m4])
1249m4_include([m4/strndup.m4])
1250m4_include([m4/strnlen.m4])
1251m4_include([m4/sys_socket_h.m4])
1252m4_include([m4/sys_types_h.m4])
1253m4_include([m4/sysexits.m4])
1254m4_include([m4/unistd_h.m4])
1255m4_include([m4/vasnprintf.m4])
1256m4_include([m4/vsnprintf.m4])
1257m4_include([m4/warn-on-use.m4])
1258m4_include([m4/wchar_h.m4])
1259m4_include([m4/wchar_t.m4])
1260m4_include([m4/wcrtomb.m4])
1261m4_include([m4/wctype_h.m4])
1262m4_include([m4/wcwidth.m4])
1263m4_include([m4/wint_t.m4])
1264m4_include([m4/xsize.m4])
1265m4_include([acinclude.m4])
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