libtool/libtoolize.m4sh

m4_pattern_allow([dnl])
AS_INIT[]m4_divert_push([HEADER-COPYRIGHT])
# libtoolize (GNU @PACKAGE@) @VERSION@
# Written by Gary V. Vaughan <gary@gnu.org>, 2003

# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
# Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.  There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# Libtoolize is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# Libtoolize is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with libtoolize; see the file COPYING.  If not, a copy
# can be downloaded from http://www.gnu.org/licenses/gpl.html,
# or obtained by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# Usage: $progname [OPTION]...
#
# Prepare a package to use libtool.
#
#   -c, --copy          copy files rather than symlinking them
#       --debug         enable verbose shell tracing
#   -n, --dry-run       print commands rather than running them
#   -f, --force         replace existing files
#   -i, --install       copy missing auxiliary files
#       --ltdl[=DIR]    install libltdl sources [default: libltdl]
#       --no-warn       don't display warning messages
#       --nonrecursive  prepare ltdl for non-recursive make
#   -q, --quiet         work silently
#       --recursive     prepare ltdl for recursive make
#       --subproject    prepare ltdl to configure and build independently
#   -v, --verbose       verbosely report processing
#       --version       print version information and exit
#   -h, --help          print short or long help message
#
# The following space or comma delimited options can be passed to $progname
# via the environment variable LIBTOOLIZE_OPTIONS, unknown environment
# options are ignored:
#
#   --debug             enable verbose shell tracing
#   --no-warn           don't display warning messages
#   --quiet             work silently
#   --verbose           verbosely report processing
#
# You must `cd' to the top directory of your package before you run
# `$progname'.
#
# When reporting a bug, please describe a test case to reproduce it and
# include the following information:
#
#       host-triplet:	@host_triplet@
#       $progname:	(GNU @PACKAGE@) @VERSION@
#       automake:		$automake_version
#       autoconf:		$autoconf_version
#
# Report bugs to <@PACKAGE_BUGREPORT@>.
# GNU @PACKAGE@ home page: <@PACKAGE_URL@>.
# General help using GNU software: <http://www.gnu.org/gethelp/>.

: ${TAR=tar}

PROGRAM=libtoolize

m4_divert_pop
m4_include([getopt.m4sh])

M4SH_VERBATIM([[
# Parse environment options
{
  my_sed_env_opt='1s/^\([^,:; ]*\).*$/\1/;q'
  my_sed_env_rest='1s/^[^,:; ]*[,:; ]*\(.*\)$/\1/;q'

  while test -n "$LIBTOOLIZE_OPTIONS"; do
    opt=`echo "$LIBTOOLIZE_OPTIONS" | sed "$my_sed_env_opt"`
    LIBTOOLIZE_OPTIONS=`echo "$LIBTOOLIZE_OPTIONS" | sed "$my_sed_env_rest"`

    case $opt in
      --debug|--no-warn|--quiet|--verbose)
		envopts="${envopts+$envopts }$opt"			  ;;
      --*)	env_warning="${env_warning+$env_warning
}unrecognized environment option \`$opt'" 				  ;;
      *)	func_fatal_help "garbled LIBTOOLIZE_OPTIONS near \`$opt'" ;;
    esac
  done

  test -n "$envopts" && {
    func_quote_for_eval "$envopts"
    eval set dummy "$func_quote_for_eval_result" ${1+"$@"}
    shift
  }
}
]])

dnl SHORT	LONG			       DEFAULT		      INIT
dnl ----------------------------------------------------------------------
dnl   --automake, below, is for compatibility with automake 1.5
M4SH_GETOPTS(
  [c],		[--copy],			[],			[],
  [f],		[--force],			[],			[],
  [i],		[--install],			[],			[],
  [n],		[--dry-run|--dryrun],		[],			[
	CP="func_echo_all $CP"
	test -n "$LN_S" && LN_S="func_echo_all $LN_S"
	MKDIR="func_echo_all $MKDIR"
	RM="func_echo_all $RM"
	TAR="func_echo_all $TAR"],
  [q],		[--quiet|--automake],		[],			[],
  [v],		[--verbose],			[],			[],
  [],		[--no-warning|--no-warn],	[],			[],
  [],		[--nonrecursive|--non-recursive], [],			[],
  [],		[--recursive],			[],			[],
  [],		[--subproject],			[],			[],
  [?],		[--ltdl],			[false],		[
	# This is tricky, since we're overloading $opt_ltdl to be the
	# optarg for --ltdl during option processing, but then stashing
	# the (optional) optarg in $ltdl_dir and reusing $opt_ltdl to
	# indicate that --ltdl was seen during option processing.  Also,
	# be careful that --ltdl=foo --ltdl=bar results in ltdl_dir=bar:
	case $opt_ltdl in
          false|:) ;;  # a bare '--ltdl' followed by another option
	  *)       ltdl_dir=`$ECHO "$optarg" |$SED 's,/*$,,'` ;;
	esac
	opt_ltdl=:],
[
  # show any warnings saved by LIBTOOLIZE_OPTIONS parsing
  test -n "$env_warning" &&
    echo "$env_warning" |while read line; do func_warning "$line"; done

  # validate $opt_nonrecursive, $opt_recursive and $opt_subproject
  if $opt_nonrecursive; then
    if $opt_recursive || $opt_subproject; then
      func_error "you can have at most one of --non-recursive, --recursive and --subproject"
    fi
    ltdl_mode=nonrecursive
  elif $opt_recursive; then
    $opt_subproject &&
      func_error "you can have at most one of --non-recursive, --recursive and --subproject"
    ltdl_mode=recursive
  elif $opt_subproject; then
    ltdl_mode=subproject
  fi

  # any remaining arguments are an error
  test [$]# -gt 0 &&
    func_fatal_help "unknown additional arguments: \`${1+$@}'"
])


M4SH_VERBATIM([[
# func_echo_once msg_var
# Calls func_echo with the value of MSG_VAR, and then sets MSG_VAR="" so
# that subsequent calls have no effect.
func_echo_once ()
{
    $debug_cmd

    if test -n "$1"; then
      eval my_msg=\$$1

      if test -n "$my_msg"; then
        func_echo "$my_msg"
        eval $1=""
      fi
    fi
}


# func_copy srcfile destfile [msg_var]
# A wrapper for func_copy_cb that accepts arguments in the same order
# as the cp(1) shell command.
func_copy ()
{
    $debug_cmd

    test -f "$1" || \
      { func_error "\`$1' not copied:  not a regular file"; return 1; }

    func_dirname_and_basename "$1"
    my_f1=$func_basename_result

    if test -d "$2"; then

      func_copy_cb "$my_f1" \
	`$ECHO "$1" | $SED "$dirname"` "$2" "$3"

    else

      # Supporting this would mean changing the timestamp:
      func_dirname_and_basename "$2"
      my_tname=$func_basename_result
      test "X$my_f1" = "X$my_tname" \
        || func_fatal_error "func_copy() cannot change filename on copy"

      func_copy_cb "$my_f1" \
        `$ECHO "$1" | $SED "$dirname"` \
        `$ECHO "$2" | $SED "$dirname"` \
	"$3"

    fi

    return $copy_return_status # set in func_copy_cb
}


# func_copy_cb filename srcdir destdir [msg_var]
# If option `--copy' was specified, or soft-linking SRCFILE to DESTFILE fails,
# then try to copy SRCFILE to DESTFILE (without changing the timestamp if
# possible).
func_copy_cb ()
{
    $debug_cmd

    my_file="$1"
    my_srcdir="$2"
    my_destdir="$3"
    my_msg_var="$4"
    copy_return_status=1

    # Libtool is probably misinstalled if this happens:
    test -f "$my_srcdir/$my_file" ||
        func_fatal_error "\`$my_file' not found in \`$my_srcdir'"

    case $opt_verbose in
      false) my_copy_msg="file \`$my_destdir/$my_file'"     ;;
      *)     my_copy_msg="file from \`$my_srcdir/$my_file'" ;;
    esac
    func_mkdir_p `$ECHO "$my_destdir/$my_file" | $SED "$dirname"`

    $RM "$my_destdir/$my_file"
    if $opt_copy; then
      if { ( cd "$my_srcdir" && $TAR chf - "$my_file" ) 2>/dev/null \
           | ( umask 0 && cd "$my_destdir" && $TAR xf - ) >/dev/null 2>&1; } \
	 && touch "$my_destdir/$my_file"; then
	$opt_quiet || func_echo_once "$my_msg_var"
	$opt_quiet || func_echo "copying $my_copy_msg"
	copy_return_status=0
      fi
    else
      if test "$my_file" = "aclocal.m4"; then
	if { ( cd "$my_srcdir" && $TAR chf - "$my_file" ) 2>/dev/null \
	     | ( umask 0 && cd "$my_destdir" && $TAR xf - ) >/dev/null 2>&1 ; }
	then
	  $opt_quiet || func_echo_once "$my_msg_var"
	  $opt_quiet || func_echo "copying $my_copy_msg"
	  copy_return_status=0
	fi
      else
	if $LN_S "$my_srcdir/$my_file" "$my_destdir/$my_file"; then
	  $opt_quiet || func_echo_once "$my_msg_var"
	  $opt_quiet || func_echo "linking $my_copy_msg"
	  copy_return_status=0
	fi
      fi
    fi
    if test "$copy_return_status" != 0; then
      $opt_quiet || func_echo_once "$my_msg_var"
      func_error "can not copy \`$my_srcdir/$my_file' to \`$my_destdir/'"
      exit_status=$EXIT_FAILURE
    fi
}


# func_copy_some_files srcfile_spec srcdir destdir [msg_var] [cb=func_copy_cb]
# Call COPY_CB for each regular file in SRCDIR named by the ':' delimited
# names in SRCFILE_SPEC.  The odd calling convention is needed to allow
# spaces in file and directory names.
func_copy_some_files ()
{
    $debug_cmd

    my_srcfile_spec="$1"
    my_srcdir="$2"
    my_destdir="$3"
    my_msg_var="$4"
    my_copy_cb="${5-func_copy_cb}"

    my_save_IFS="$IFS"
    IFS=:
    for my_filename in $my_srcfile_spec; do
      IFS="$my_save_IFS"
      if test -f "$my_srcdir/$my_filename"; then
        if test "X$my_copy_cb" = Xfunc_copy_cb; then
	  $opt_force || if test -f "$my_destdir/$my_filename"; then
	    $opt_quiet || func_echo_once "$my_msg_var"
	    $opt_quiet \
	      || func_error "\`$my_destdir/$my_filename' exists: use \`--force' to overwrite"
	    continue
	  fi
        fi
      else
	func_echo_once "$my_msg_var"
	func_fatal_error "\`$my_filename' not found in \`$my_srcdir'"
      fi

      $my_copy_cb "$my_filename" "$my_srcdir" "$my_destdir" "$my_msg_var"
    done
    IFS="$my_save_IFS"
}


# func_fixup_Makefile srcfile srcdir destdir
func_fixup_Makefile ()
{
    $debug_cmd

    $require_ltdl_dir

    my_filename="$1"
    my_srcdir="$2"
    my_destdir="$3"
    my_fixup_non_subpackage_script='/^[^#]/{
      s,(LIBOBJS),(ltdl_LIBOBJS),g
      s,(LTLIBOBJS),(ltdl_LTLIBOBJS),g
      s,libltdl/configure.ac,,
      s,libltdl/configure,,
      s,libltdl/aclocal.m4,,
      s,libltdl/config-h.in,,
      s,libltdl/Makefile.am,,
      s,libltdl/Makefile.in,,
      /^[	 ]*\\\\$/d
    }'
    case $my_filename in
      Makefile.am)
	my_fixup_non_subpackage_script=`echo "$my_fixup_non_subpackage_script" | \
		sed 's,libltdl/,,'`
	my_fixup_inc_paths_script= ;;
      Makefile.inc)
	repl=$ltdl_dir
	repl_uscore=`$ECHO "$repl" | $SED 's,[/.+-],_,g'`
	my_fixup_inc_paths_script="\
	  s,libltdl_,@repl_uscore@_,
	  s,libltdl/,@repl@/,
	  s,: libltdl/,: @repl@/,
	  s, -Ilibltdl , -I@repl@ ,
	  s,\\\$(libltdl_,\$(@repl_uscore@_,
	  s,)/libltdl ,)/@repl@ ,
	  s,@repl_uscore@,${repl_uscore},g
	  s,@repl@,${repl},g"
	;;
    esac

    $RM "$my_destdir/$my_filename" 2>/dev/null
    $opt_quiet || func_echo "creating file \`$my_destdir/$my_filename'"
    if $opt_dry_run; then :;
    else
      $SED "$my_fixup_non_subpackage_script
	    $my_fixup_inc_paths_script" \
	< "$my_srcdir/$my_filename" > "$my_destdir/$my_filename" ||
	func_fatal_error "cannot create $my_destdir/$my_filename"
    fi
}


# func_extract_trace macro_name [filename ...]
# set `$func_extract_trace_result' to a colon delimited list of arguments
# to MACRO_NAME in FILENAME. If no FILENAME is given, then
# `configure.ac' is assumed.
func_extract_trace ()
{
    $opt_debug

    if test 1 -eq $#; then
      test -n "$configure_ac" || return
      set dummy "$@" "$configure_ac"; shift
    fi

    func_extract_trace_result=`$extract_trace ${1+"$@"}`
}


# func_scan_files
# Scan configure.(ac|in) and aclocal.m4 (if present) for use of libltdl
# and libtool.  Possibly running some of these tools if necessary.
# Libtoolize affects the contents of aclocal.m4, and should be run before
# aclocal, so we can't use configure --trace which relies on a consistent
# configure.(ac|in) and aclocal.m4.
func_scan_files ()
{
    $debug_cmd

    $require_configure_ac

    test -n "$configure_ac" || return

    # ---------------------------------------------------- #
    # Probe macro usage in configure.ac and/or aclocal.m4. #
    # ---------------------------------------------------- #

    my_sed_traces='s,#.*$,,; s,^dnl .*$,,; s, dnl .*$,,
        s,^.*AC_REQUIRE(.*$,,; s,^.*m4@&t@_require(.*$,,;
	s,^.*m4@&t@_define(.*$,,
	s,^.*A[CU]_DEFUN(.*$,,; s,^.*m4@&t@_defun(.*$,,
	/\@<:@A[CM]_PROG_LIBTOOL/d
	/A[CM]_PROG_LIBTOOL/ {
	    s,^.*$,seen_libtool=:,
	    p
	}
	/the.*option into.*LT_INIT.*parameter/d
	/\@<:@LT_INIT/d
	/LT_INIT/		 {
	    s,^.*$,seen_libtool=:,
	    p
	}
	/\@<:@LTDL_INIT/d
	/LTDL_INIT/          {
	    s,^.*$,seen_ltdl=:,
	    p
	}
	/LT_WITH_LTDL/       {
	    s,^.*$,seen_ltdl=:,
	    p
	}
	/AC_LIB_LTDL/        {
	    s,^.*$,seen_ltdl=:,
	    p
	}
	/AC_WITH_LTDL/       {
	    s,^.*$,seen_ltdl=:,
	    p
	}
	d'
    eval `cat aclocal.m4 "$configure_ac" 2>/dev/null | $SED "$my_sed_traces"`
}

# func_included_files searchfile
# Output INCLUDEFILE if SEARCHFILE m4_includes it, else output SEARCHFILE.
func_included_files ()
{
    $debug_cmd

    my_searchfile="$1"

    my_include_regex=
    my_sed_include='
        /^m4@&t@_include(\[.*\])$/ {
	    s,^m4@&t@_include(\[\(.*\)\])$,\1,
	    p
	}
        d'

    if test -f "$my_searchfile"; then
      $ECHO "$my_searchfile"

      # Only recurse when we don't care if all the variables we use get
      # trashed, since they are in global scope.
      for my_filename in `$SED "$my_sed_include" "$my_searchfile"`; do
	func_included_files $my_filename
      done
    fi
}


# func_serial filename [macro_regex]
# Output the value of the serial number comment in FILENAME, where the
# comment line must also match MACRO_REGEX, if given.
func_serial ()
{
    $debug_cmd

    my_filename="$1"
    my_macro_regex="$2"
    my_sed_serial='
	/^# serial [1-9][0-9.]*[	 ]*'"$my_macro_regex"'[	 ]*$/ {
	    s,^# serial \([1-9][0-9.]*\).*$,\1,
	    q
	}
	d'

    # Search FILENAME and all the files it m4_includes for a serial number
    # in the file that AC_DEFUNs MACRO_REGEX.
    my_serial=
    func_dirname_and_basename "$my_filename"
    my_filebase=$func_basename_result
    for my_file in `func_included_files "$my_filename"`; do
      if test -z "$my_macro_regex" ||
         test "$my_filename" = aclocal.m4 ||
         test "X$my_macro_regex" = "X$my_filebase" ||
         func_grep '^AC_DEFUN(\@<:@'"$my_macro_regex" "$my_file"
      then
        my_serial=`$SED -e "$my_sed_serial" "$my_file"`
	break
      fi
    done

    # If the file has no serial number, we assume it's ancient.
    test -n "$my_serial" || my_serial=0

    $ECHO "$my_serial"
}


# func_serial_max serial1 serial2
# Compare (possibly multi-part, '.' delimited) serial numbers, and
# return the largest in $func_serial_max_result.  If they are the
# same, func_serial_max_result will be empty.
func_serial_max ()
{
    $debug_cmd

    my_serial1="$1"
    my_serial2="$2"

    my_sed_dot='s/\..*$//g'
    my_sed_rest='s/^[0-9][1-9]*\.*//'
    my_sed_digits='s/[^0-9.]//g'

    # Incase they turn out to be the same, we'll set it to empty
    func_serial_max_result=

    test "X$1$2" = X`$ECHO "$1$2" | $SED "$my_sed_digits"` || {
      func_error "serial numbers \`$1' or \`$2' contain non-digit chars"
      return
    }

    while test -n "$my_serial1$my_serial2"; do
      my_serial1_part=`$ECHO "$my_serial1" | $SED "$my_sed_dot"`
      my_serial2_part=`$ECHO "$my_serial2" | $SED "$my_sed_dot"`

      test -z "$my_serial1_part$my_serial2_part" \
        && break

      test -z "$my_serial1_part" \
        && { func_serial_max_result="$2"; break; }

      test -z "$my_serial2_part" \
        && { func_serial_max_result="$1"; break; }

      test "$my_serial1_part" -gt "$my_serial2_part" \
        && { func_serial_max_result="$1"; break; }

      test "$my_serial2_part" -gt "$my_serial1_part" \
        && { func_serial_max_result="$2"; break; }

      my_serial1=`$ECHO "$my_serial1" | $SED "$my_sed_rest"`
      my_serial2=`$ECHO "$my_serial2" | $SED "$my_sed_rest"`
    done
}


# func_serial_update_check srcfile src_serial destfile dest_serial
# Unless SRC_SERIAL is newer than DEST_SERIAL set $func_serial_update_check
# to 'false'.
func_serial_update_check ()
{
    $debug_cmd

    $require_ac_ltdl_dir
    $require_ac_macro_dir

    my_srcfile="$1"
    my_src_serial="$2"
    my_destfile="$3"
    my_dest_serial="$4"
    my_update_p=:

    if test -f "$my_destfile"; then
      test "X$my_src_serial" = "X0" && {
        func_warning "no serial number on \`$my_srcfile', not copying."
	return
      }

      # Determine whether the destination has an older serial.
      func_serial_max "$my_src_serial" "$my_dest_serial"
      test "X$my_src_serial" = "X$func_serial_max_result" || my_update_p=false

      test "X$my_src_serial" = "X$func_serial_max_result" \
        && func_verbose "\`$my_srcfile' is serial $my_src_serial, greater than $my_dest_serial in \`$my_destfile'"

      if test "X$my_dest_serial" = "X$func_serial_max_result"; then
        func_verbose "\`$my_srcfile' is serial $my_src_serial, less than $my_dest_serial in \`$my_destfile'"
	$opt_force || if test -n "$ac_macro_dir$ac_ltdl_dir"; then
           func_error "\`$my_destfile' is newer: use \`--force' to overwrite"
        fi
      fi
    fi

    func_serial_update_check_result="$my_update_p"
}


# func_aclocal_update_check filename
# Unless serial number of FILENAME is newer than the matching serial number
# in aclocal.m4, set $func_aclocal_update_check to 'false'.
func_aclocal_update_check ()
{
    $debug_cmd

    my_filename=$1

    my_srcfile="$aclocaldir/$1"
    my_destfile="aclocal.m4"

    case $my_filename in
      libtool.m4)
	my_src_serial=`func_serial "$my_srcfile" LT_INIT`
	my_dest_serial=`func_serial "$my_destfile" LT_INIT`

	# Strictly, this libtoolize ought not to have to deal with ancient
	# serial formats, but we accept them here to be complete:
	test "X$my_src_serial" = "X0" &&
	  my_src_serial=`func_serial "$my_srcfile" 'A[CM]_PROG_LIBTOOL'`
	test "X$my_dest_serial" = "X0" &&
	  my_dest_serial=`func_serial "$my_destfile" 'A[CM]_PROG_LIBTOOL'`
	;;
      ltdl.m4)
	my_src_serial=`func_serial "$my_srcfile" LTDL_INIT`
	my_dest_serial=`func_serial "$my_destfile" LTDL_INIT`
	;;
      *)
	my_src_serial=`func_serial "$my_srcfile" "$my_filename"`
	my_dest_serial=`func_serial "$my_destfile" "$my_filename"`
	;;
    esac

    func_serial_update_check \
      "$my_srcfile" "$my_src_serial" "$my_destfile" "$my_dest_serial"

    func_aclocal_update_check_result="$func_serial_update_check_result"
}


# func_serial_update filename srcdir destdir [msg_var] [macro_re] [old_macro_re]
# Copy the FILENAME from a SRCDIR to DESTDIR provided that either FILENAME
# has a newer serial number, or DESTFILE does not yet exist, or the user
# specified `--force' at the command line.  If given, MACRO_REGEX or
# OLD_MACRO_REGEX must match any text after "# serial N" in both files.
func_serial_update ()
{
    $debug_cmd

    my_filename="$1"
    my_srcdir="$2"
    my_destdir="$3"
    my_msg_var="$4"
    my_macro_regex="$5"
    my_old_macro_regex="$6"

    my_serial_update_p=:
    my_return_status=1
    my_srcfile="$my_srcdir/$my_filename"
    my_destfile="$my_destdir/$my_filename"

    test -f "$my_srcfile" || func_fatal_error "\`$my_srcfile' does not exist."

    if test -f "$my_destfile"; then
      my_src_serial=`func_serial "$my_srcfile" "$my_macro_regex"`
      my_dest_serial=`func_serial "$my_destfile" "$my_macro_regex"`

      # Strictly, this libtoolize ought not to have to deal with ancient
      # serial formats, but we accept them here to be complete:
      test "X$my_src_serial" = "X0" &&
        my_src_serial=`func_serial "$my_srcfile" "$my_old_macro_regex"`

      test "X$my_dest_serial" = "X0" &&
        my_dest_serial=`func_serial "$my_destfile" "$my_old_macro_regex"`

      func_serial_update_check \
        "$my_srcfile" "$my_src_serial" "$my_destfile" "$my_dest_serial"
      my_serial_update_p="$func_serial_update_check_result"
    fi

    if $my_serial_update_p || $opt_force; then
      func_copy "$my_srcfile" "$my_destfile" "$my_msg_var"
      my_return_status=$?
    elif $opt_force && test "X$my_dest_serial" = "X$my_src_serial"; then
      $opt_quiet || func_echo_once "$my_msg_var"
      $opt_quiet \
        || func_echo "\`$my_destfile' is already up to date."
    fi

    # Do this after the copy for hand maintained `aclocal.m4', incase
    # it has `m4_include([DESTFILE])', so the copy effectively already
    # updated `aclocal.m4'.
    my_included_files=`func_included_files aclocal.m4`
    case `echo " $my_included_files " | $NL2SP` in

      # Skip included files:
      *" $my_destfile "*) ;;

      # Otherwise compare to aclocal.m4 serial number (func_serial
      # returns 0 for older macro serial numbers before we provided
      # serial tags, so the update message will be correctly given
      # if aclocal.m4 contains an untagged --i.e older-- macro file):
      *)
        if test -f aclocal.m4; then
          func_serial_max \
              "$my_src_serial" `func_serial aclocal.m4 "$my_macro_regex"`
          if test "X$my_src_serial" = "X$func_serial_max_result"; then
              func_echo_once "$my_msg_var"
	      func_echo "You should add the contents of \`$my_destfile' to \`aclocal.m4'."
          fi
        fi
        ;;
    esac
    return $my_return_status
}


# func_keyword_update filename srcdir destdir sed_script [msg_var]
# Copy the FILENAME from a SRCDIR to DESTDIR provided that either FILENAME
# has a newer revision according to the serial number extracted by
# SED_SCRIPT, or DESTFILE does not yet exist, or the user specified
# `--force' at the command line.
func_keyword_update ()
{
    $debug_cmd

    my_filename="$1"
    my_srcdir="$2"
    my_destdir="$3"
    my_sed_script="$4"
    my_msg_var="$5"

    my_srcfile="$my_srcdir/$my_filename"
    my_destfile="$my_destdir/$my_filename"

    my_keyword_update_p=:

    test -f "$my_srcfile" || func_fatal_error "\`$my_srcfile' does not exist."

    if test -f "$my_destfile"; then
      my_src_serial=`$SED -e "$my_sed_script" "$my_srcfile"`
      test -z "$my_src_serial" && {
        func_warning "no serial number in \`$my_srcfile', not copying."
	return
      }

      my_dest_serial=`$SED -e "$my_sed_script" "$my_destfile"`
      test -n "$my_dest_serial" || my_dest_serial=0

      func_serial_update_check \
         "$my_srcfile" "$my_src_serial" "$my_destfile" "$my_dest_serial"
      my_keyword_update_p="$func_serial_update_check_result"
    fi

    if $my_keyword_update_p || $opt_force; then
      func_copy "$my_srcfile" "$my_destfile" "$my_msg_var"
    elif $opt_verbose || $opt_force && test "X$my_dest_serial" = "X$my_src_serial"; then
      func_echo_once "$my_msg_var"
      func_echo "\`$my_destfile' is already up to date."
    fi
}


# func_ltmain_update filename srcdir destdir [msg_var]
# Copy the FILENAME from a SRCDIR to DESTDIR provided that either FILENAME
# has a newer revision, or DESTFILE does not yet exist, or the user
# specified `--force' at the command line.
func_ltmain_update ()
{
    $debug_cmd

    my_sed_ltmain='
	/^package_revision='\''*[0-9][1-9.]*'\''*/ {
	    s,^package_revision='\''*\([0-9.]*\)'\''*[	 ]*$,\1,
	    p
	}
	d'

    func_keyword_update "$1" "$2" "$3" "$my_sed_ltmain" "$4"

    return $my_return_status
}


# func_config_update filename srcdir destdir [msg_var]
# Copy the FILENAME from a SRCDIR to DESTDIR provided that either FILENAME
# has a newer timestamp, or DESTFILE does not yet exist, or the user
# specified `--force' at the command line.
func_config_update ()
{
    $debug_cmd

    my_sed_config='
	/^timestamp='\''*[0-9][1-9-]*'\''*/ {
	    s,^timestamp='\''*\([0-9-]*\)'\''*,\1,
	    s/-/./g
	    p
	}
	d'

    func_keyword_update "$1" "$2" "$3" "$my_sed_config" "$4"

    return $my_return_status
}


# func_install_update filename srcdir destdir [msg_var]
# Copy the FILENAME from a SRCDIR to DESTDIR provided that either FILENAME
# has a newer timestamp, or DESTFILE does not yet exist, or the user
# specified `--force' at the command line.
func_install_update ()
{
    $debug_cmd

    my_sed_install='
	/^scriptversion='\''*[0-9][1-9.-]*'\''*/ {
	    s,[#;].*,,
	    s,^scriptversion='\''*\([0-9.-]*\)'\''*,\1,
	    s/-/./g
	    p
	}
	d'

    func_keyword_update "$1" "$2" "$3" "$my_sed_install" "$4"

    return $my_return_status
}


# func_massage_aclocal_DATA [glob_exclude]
# @aclocal_DATA\@ is substituted as per its value in Makefile.am;
# this function massages it into a suitable format for func_copy_some_files.
func_massage_aclocal_DATA ()
{
    $debug_cmd

    pkgmacro_files=     # GLOBAL VAR

    my_glob_exclude="$1"

    # Massage a value for pkgmacro_files from the value used in Makefile.am.
    for my_filename in @aclocal_DATA@; do
      func_dirname_and_basename "$my_filename"
      my_filename=$func_basename_result

      # ignore excluded filenames
      if test -n "$my_glob_exclude"; then
	my_cont=false
	eval 'case $my_filename in '$my_glob_exclude') my_cont=: ;; esac'
	$my_cont && continue
      fi

      pkgmacro_files="$pkgmacro_files:$my_filename"
    done

    # strip spurious leading `:'
    pkgmacro_files=`$ECHO "$pkgmacro_files" | $SED 's,^:*,,'`
}


# func_install_pkgmacro_subproject
# Unless --quiet was passed, display a message. Then copy pkgmacro_files
# from libtool installation tree to subproject libltdl tree.
func_install_pkgmacro_subproject ()
{
    $debug_cmd

    $require_macro_dir

    # Remove any lingering files that my have been installed by some
    # previous libtoolize release:
    $opt_force && for file in $all_pkgmacro_files; do
      test -f "$subproject_macro_dir/$file" && func_verbose "rm -f '$subproject_macro_dir/$file'"
      rm -f "$subproject_macro_dir/$file"
    done

    # Copy all the files from installed libltdl to this project, if the
    # user specified a macro_dir.
    $opt_quiet || if test "x$macro_dir" != "x$subproject_macro_dir"; then
      pkgmacro_header="putting macros in \`$subproject_macro_dir'."
    elif test -n "$subproject_macro_dir"; then
      pkgmacro_header="putting macros in AC_CONFIG_MACRO_DIR, \`$subproject_macro_dir'."
    fi

    func_copy_some_files "argz.m4:libtool.m4:ltdl.m4:$pkgmacro_files" \
      "$aclocaldir" "$subproject_macro_dir" pkgmacro_header
}


# func_install_pkgmacro_parent
# Unless --quiet was passed, or AC_CONFIG_MACRO_DIR was not seen, display
# a message.  Then update appropriate macros if newer ones are available
# from the libtool installation tree.
func_install_pkgmacro_parent ()
{
    $debug_cmd

    $require_ac_macro_dir
    $require_macro_dir

    # Remove any lingering files that my have been installed by some
    # previous libtoolize release:
    $opt_force && for file in $all_pkgmacro_files; do
      test -f "$macro_dir/$file" && func_verbose "rm -f '$macro_dir/$file'"
      rm -f "$macro_dir/$file"
    done

    # Copy all the files from installed libltdl to this project, if the
    # user specified a macro_dir.
    $opt_quiet || if test -n "$ac_macro_dir"; then
      my_pkgmacro_header="putting macros in AC_CONFIG_MACRO_DIR, \`$ac_macro_dir'."
    else
      my_pkgmacro_header="putting macros in \`$macro_dir'."
    fi

    if $opt_ltdl; then
      func_serial_update argz.m4 "$aclocaldir" "$macro_dir" \
        my_pkgmacro_header argz.m4
    else
      func_verbose "Not copying \`$macro_dir/argz.m4', libltdl not used."
    fi

    func_serial_update  libtool.m4 "$aclocaldir" "$macro_dir" \
      my_pkgmacro_header LT_INIT 'A[CM]_PROG_LIBTOOL'

    if $opt_ltdl; then
      func_serial_update ltdl.m4 "$aclocaldir" "$macro_dir" \
        my_pkgmacro_header 'LTDL_INIT'
    else
      func_verbose "Not copying \`$macro_dir/ltdl.m4', libltdl not used."
    fi

    my_save_IFS="$IFS"
    IFS=:
    for file in $pkgmacro_files; do
      IFS="$my_save_IFS"
      func_serial_update "$file" "$aclocaldir" "$macro_dir" \
        my_pkgmacro_header "$file"
    done
    IFS="$my_save_IFS"
}


# func_install_pkgmacro_files
# Install copies of the libtool and libltdl m4 macros into this package.
func_install_pkgmacro_files ()
{
    $debug_cmd

    $require_ac_macro_dir
    $require_am_macro_dir
    $require_configure_ac
    $require_ltdl_mode
    $require_macro_dir

    # argz.m4, libtool.m4 and ltdl.m4 are handled specially:
    func_massage_aclocal_DATA 'argz.m4|libtool.m4|ltdl.m4'

  # 1. Parent has separate macro_dir to subproject ltdl:
    if $opt_ltdl && test "x$ltdl_mode" = "xsubproject" &&
       test "x$macro_dir" != "x$subproject_macro_dir"
    then
      # No point installing configure macros in the parent project when
      # there's no $configure_ac to use them.
      test -f "$configure_ac" && func_install_pkgmacro_parent
      func_install_pkgmacro_subproject

  # 2. Parent shares macro_dir with subproject ltdl:
    elif $opt_ltdl && test "x$ltdl_mode" = "xsubproject"
       # && test "x$macro_dir" = "x$subproject_macro_dir"
    then
      func_install_pkgmacro_subproject

  # 3. Not a subproject, but macro_dir was specified in parent:
    elif test -n "$ac_macro_dir$am_macro_dir"; then
      func_install_pkgmacro_parent

  # 4. AC_CONFIG_MACRO_DIR was not specified:
    else
      func_verbose "AC_CONFIG_MACRO_DIR not defined, not copying libtool macros."
    fi
}


# func_massage_pkgltdl_files [glob_exclude]
# @pkgltdl_files\@ is substituted as per its value in Makefile.am; this
# function massages it into a suitable format for func_copy_some_files.
func_massage_pkgltdl_files ()
{
    $debug_cmd

    pkgltdl_files=	# GLOBAL VAR

    my_glob_exclude="$1"

    # Massage a value for pkgltdl_files from the value used in Makefile.am
    for my_filename in @pkgltdl_files@; do

      # Strip surplus leading 'libltdl/':
      my_filename=`expr "X$my_filename" : 'Xlibltdl/\(.*\)'`

      # ignore excluded filenames
      if test -n "$my_glob_exclude"; then
	my_cont=false
	eval 'case $my_filename in '$my_glob_exclude') my_cont=: ;; esac'
	$my_cont && continue
      fi

      # ignore duplicates
      case :$pkgltdl_files: in
        *:$my_filename:*) ;;
	*) pkgltdl_files="$pkgltdl_files:$my_filename" ;;
      esac
    done

    # strip spurious leading `:'
    pkgltdl_files=`$ECHO "$pkgltdl_files" | $SED 's,^:*,,'`
}


# func_install_pkgltdl_files
# Install copies of the libltdl files into this package.  Any auxiliary
# or m4 macro files needed in the libltdl tree will also be copied by
# func_install_pkgconfig_files and func_install_pkgmacro_files resp.
func_install_pkgltdl_files ()
{
    $debug_cmd

    $opt_ltdl || return

    $require_ac_ltdl_dir
    $require_ltdl_dir
    $require_ltdl_mode

    # Remove any lingering files that my have been installed by some
    # previous libtoolize release:
    $opt_force && for file in $all_pkgltdl_files; do
      test -f "$ltdl_dir/$file" && func_verbose "rm -f '$ltdl_dir/$file'"
      rm -f "$ltdl_dir/$file"
    done

    # Copy all the files from installed libltdl to this project, if the
    # user specified `--ltdl'.
    $opt_quiet || if test -n "$ac_ltdl_dir"; then
      pkgltdl_header="putting libltdl files in LT_CONFIG_LTDL_DIR, \`$ac_ltdl_dir'."
    else
      pkgltdl_header="putting libltdl files in \`$ltdl_dir'."
    fi

    # These files are handled specially, depending on ltdl_mode:
    if test "x$ltdl_mode" = "xsubproject"; then
      func_massage_pkgltdl_files 'Makefile.inc'
    else
      func_massage_pkgltdl_files 'Makefile.am|Makefile.in*|aclocal.m4|config*'
    fi

    func_copy_some_files "$pkgltdl_files" \
      "$pkgltdldir/libltdl" "$ltdl_dir" pkgltdl_header

    # For recursive ltdl modes, copy a suitable Makefile.{am,inc}:
    case $ltdl_mode in
      recursive)
        func_fixup_Makefile "Makefile.am" "$pkgltdldir/libltdl" "$ltdl_dir"
        ;;
      nonrecursive)
        func_fixup_Makefile "Makefile.inc" "$pkgltdldir/libltdl" "$ltdl_dir"
        ;;
    esac
}


# func_massage_pkgconfig_files [glob_exclude]
# @pkgconfig_files\@ is substituted as per its value in Makefile.am; this
# function massages it into a suitable format for func_copy_some_files.
func_massage_pkgconfig_files ()
{
    $debug_cmd

    pkgconfig_files=	# GLOBAL VAR

    my_glob_exclude="$1"

    # Massage a value for pkgconfig_files from the value used in Makefile.am
    for my_filename in @pkgconfig_files@; do

      # ignore excluded filenames
      if test -n "$my_glob_exclude"; then
	my_cont=false
	eval 'case $my_filename in '$my_glob_exclude') my_cont=: ;; esac'
	$my_cont && continue
      fi

      # ignore duplicates
      case :$pkgconfig_files: in
        *:$my_filename:*) ;;
	*) pkgconfig_files="$pkgconfig_files:$my_filename" ;;
      esac
    done

    # strip spurious leading `:'
    pkgconfig_files=`$ECHO "$pkgconfig_files" | $SED 's,^:*,,'`
}


# func_install_pkgconfig_subproject
# Unless --quiet was passed, display a message. Then copy pkgconfig_files
# from libtool installation tree to subproject libltdl tree.
func_install_pkgconfig_subproject ()
{
    $debug_cmd

    $require_ac_aux_dir
    $require_aux_dir
    $require_ltdl_dir

    # Remove any lingering files that my have been installed by some
    # previous libtoolize release:
    $opt_force && for file in $all_pkgconfig_files; do
      test -f "$subproject_aux_dir/$file" && func_verbose "rm -f '$subproject_aux_dir/$file'"
      rm -f "$subproject_aux_dir/$file"
    done

    # Copy all the files from installed libltdl to this project, if the
    # user specified an aux_dir.
    $opt_quiet || if test "x$ac_aux_dir" = "x$subproject_aux_dir"; then
      pkgconfig_header="putting auxiliary files in AC_CONFIG_AUX_DIR, \`$subproject_aux_dir'."
    elif test -n "$ac_aux_dir"; then
      pkgconfig_header="putting auxiliary files in \`$aux_dir'."
    else
      pkgconfig_header="putting auxiliary files in \`$subproject_aux_dir'."
    fi

    func_copy_some_files "$pkgconfig_files" \
      "$pkgdatadir" "$ltdl_dir" pkgconfig_header
}


# func_install_pkgconfig_parent
# Unless --quiet was passed, or AC_CONFIG_AUX_DIR was not seen, display a
# message.  Then update appropriate auxiliary files if newer ones are
# available from the libtool installation tree.
func_install_pkgconfig_parent ()
{
    $debug_cmd

    $require_ac_aux_dir
    $require_aux_dir

    # Remove any lingering files that my have been installed by some
    # previous libtoolize release:
    $opt_force && for file in $all_pkgconfig_files; do
      test -f "$aux_dir/$file" && func_verbose "rm -f '$aux_dir/$file'"
      rm -f "$aux_dir/$file"
    done

    if test -n "$ac_aux_dir"; then
      pkgconfig_header="putting auxiliary files in AC_CONFIG_AUX_DIR, \`$ac_aux_dir'."
    else
      pkgconfig_header="putting auxiliary files in \`$aux_dir'."
    fi

    if $opt_install; then
      func_config_update config.guess \
        "$pkgdatadir/config" "$aux_dir" pkgconfig_header
      func_config_update config.sub \
        "$pkgdatadir/config" "$aux_dir" pkgconfig_header
      func_install_update install-sh \
        "$pkgdatadir/config" "$aux_dir" pkgconfig_header
    fi
    func_ltmain_update ltmain.sh \
      "$pkgdatadir/config" "$aux_dir" pkgconfig_header
}


# func_install_pkgconfig_files
# Install copies of the auxiliary files into this package according to
# the whether libltdl is included as a subproject, and whether the parent
# shares the AC_CONFIG_AUX_DIR setting.
func_install_pkgconfig_files ()
{
    $debug_cmd

    $require_aux_dir
    $require_configure_ac
    $require_ltdl_mode

    func_massage_pkgconfig_files

  # 1. Parent shares aux_dir with subproject ltdl:
    if $opt_ltdl && test "x$ltdl_mode" = "xsubproject" &&
       test "x$aux_dir" = "x$subproject_aux_dir"
    then
      func_install_pkgconfig_subproject

  # 2. Parent has separate aux_dir to subproject ltdl:
    elif $opt_ltdl && test "x$ltdl_mode" = "xsubproject"
       # && test "x$aux_dir" != "x$subproject_aux_dir" is implied
    then
      if test -n "$configure_ac"; then
	func_install_pkgconfig_parent
      fi
      func_install_pkgconfig_subproject

  # 3. Not subproject, but AC_CONFIG_AUX_DIR was used in parent:
    elif test -n "$ac_aux_dir" || test "x$aux_dir" = "x."; then
      func_install_pkgconfig_parent

  # 4. AC_CONFIG_AUX_DIR was not specified:
    else
      func_verbose "AC_CONFIG_AUX_DIR not defined, not copying libtool auxiliary files."
    fi
}


# func_nonemptydir_p dirvar
# DIRVAR is the name of a variable to evaluate.  Unless DIRVAR names
# a directory that exists and is non-empty abort with a diagnostic.
func_nonemptydir_p ()
{
    $debug_cmd

    my_dirvar="$1"
    my_dir=`eval echo "\\\$$my_dirvar"`

    # Is it a directory at all?
    test -d "$my_dir" \
      || func_fatal_error "\$$my_dirvar is not a directory: \`$my_dir'"

    # check that the directories contents can be ls'ed
    test -n "`{ cd $my_dir && ls; } 2>/dev/null`" \
        || func_fatal_error "can not list files: \`$my_dir'"
}


# func_check_macros
# Sanity check macros from aclocal.m4 against installed versions.
func_check_macros ()
{
    $debug_cmd

    $require_ac_ltdl_dir
    $require_ac_macro_dir
    $require_am_macro_dir
    $require_aux_dir
    $require_configure_ac
    $require_ltdl_dir
    $require_ltdl_mode
    $require_macro_dir

    $opt_quiet && return
    test -n "$configure_ac" || return

    ac_config_macro_dir_advised=false

    if test -n "$ac_macro_dir$ltdl_dir" && test -z "$ac_macro_dir$am_macro_dir"; then
      my_ac_config_macro_srcdir="$aclocaldir"
      if $opt_ltdl && test "$macro_dir" != "$subproject_macro_dir"; then
	my_ac_config_macro_srcdir="$subproject_macro_dir"
      fi

      my_needed="libtool.m4 ltoptions.m4 ltversion.m4 ltsugar.m4 lt~obsolete.m4"
      $opt_ltdl && my_needed="$my_needed argz.m4 ltdl.m4"

      if test -f "aclocal.m4"; then
	for need in $my_needed; do
	  func_aclocal_update_check $need
	  $func_aclocal_update_check_result && my_missing="$my_missing $need"
	done
      else
        my_missing="$my_needed"
      fi

      if test -n "$my_missing"; then
        func_echo "You should add the contents of the following files to \`aclocal.m4':"
        for need in $my_missing; do
	  func_echo "  \`$my_ac_config_macro_srcdir/$need'"
        done

        if test "$my_ac_config_macro_srcdir" != "$aclocaldir"; then
          func_echo "or else add \`AC_CONFIG_MACRO_DIR([$subproject_macro_dir])' to $configure_ac."
	  ac_config_macro_dir_advised=:
        fi
      fi
    fi

    ## ---------------------------------------------------------- ##
    ## Since we return early here when --no-warn was given:       ##
    ## DO NOT PUT ANYTHING BUT UPGRADE ADVICE MESSAGES BELOW HERE ##
    ## ---------------------------------------------------------- ##

    $opt_warning || return

    $seen_libtool ||
      func_echo "Remember to add \`LT_INIT' to $configure_ac."

    # Suggest using LTDL_INIT if appropriate:
    $opt_ltdl && if test x$seen_ltdl != x:; then
      case $ltdl_mode in
	subproject) ltdl_init_args=""               ;;
	*)          ltdl_init_args="([$ltdl_mode])" ;;
      esac
      func_echo "Remember to add \`LTDL_INIT$ltdl_init_args' to $configure_ac."
    fi

    if $opt_ltdl; then
      # Remind the user to call LT_CONFIG_LTDL_DIR:
      test -n "$ac_ltdl_dir" ||
        func_echo "Remember to add \`LT_CONFIG_LTDL_DIR([$ltdl_dir])' to \`$configure_ac'."

      # For subproject mode, offer some suggestions for avoiding duplicate
      # files in a project that uses libltdl:
      if test "x$ltdl_mode" = "xsubproject"; then
        test "$subproject_aux_dir" = "$aux_dir" ||
          func_echo "Consider using \`AC_CONFIG_AUX_DIR([$subproject_aux_dir])' in $configure_ac."
        $ac_config_macro_dir_advised || test "$subproject_macro_dir" = "$macro_dir" ||
          func_echo "Consider using \`AC_CONFIG_MACRO_DIR([$subproject_macro_dir])' in $configure_ac."
	ac_config_macro_dir_advised=:
      fi
    fi

    # Suggest modern idioms for storing autoconf macros:
    $ac_config_macro_dir_advised || if test -z "$ac_macro_dir" || test x"$macro_dir" = x.; then
      func_echo "Consider adding \`AC_CONFIG_MACRO_DIR([m4])' to $configure_ac and"
      func_echo "rerunning $progname, to keep the correct libtool macros in-tree."
      ac_config_macro_dir_advised=:

    elif test -z "$ac_macro_dir"; then
      func_echo "Consider adding \`AC_CONFIG_MACRO_DIR([$macro_dir])' to $configure_ac,"
      func_echo "and rerunning $progname and aclocal."
      ac_config_macro_dir_advised=:
    fi

    if test -z "$am_macro_dir$ac_macro_dir"; then
      func_echo "Consider adding \`-I m4' to ACLOCAL_AMFLAGS in Makefile.am."

    elif test -z "$am_macro_dir"; then
      if $opt_ltdl && test "x$ltdl_mode" = "xsubproject" && test "$subproject_macro_dir" != "$macro_dir"; then
	func_echo "Consider adding \`-I $subproject_macro_dir' to ACLOCAL_AMFLAGS in Makefile.am."
      else
        func_echo "Consider adding \`-I $macro_dir' to ACLOCAL_AMFLAGS in Makefile.am."
      fi
    fi

    # Don't trace for this, we're just checking the user didn't invoke it
    # directly from configure.ac.
    $SED 's,dnl .*$,,; s,# .*$,,' "$configure_ac" | grep AC_PROG_RANLIB >/dev/null &&
      func_echo "\`AC_PROG_RANLIB' is rendered obsolete by \`LT_INIT'"

    # FIXME: Ensure ltmain.sh, libtool.m4 and ltdl.m4 are from the same release
}



## ------------------##
## Helper functions. ##
## ------------------##

# This section contains the helper functions used by the rest of
# this script.


# func_autoconf_configure MAYBE-CONFIGURE-FILE
# ------------------------------------------
# Ensure that MAYBE-CONFIGURE-FILE is the name of a file in the current
# directory which contains an uncommented call to AC_INIT.
func_autoconf_configure ()
{
    $debug_cmd

    _G_sed_no_comment='s,#.*$,,; s,^dnl .*$,,; s, dnl .*$,,;'
    _G_ac_init=

    # If we were passed a genuine file, make sure it calls AC_INIT.
    test -f "$1" \
      && _G_ac_init=`$SED "$_G_sed_no_comment" "$1" |grep AC_INIT`

    # Otherwise it is not a genuine Autoconf input file.
    test -n "$_G_ac_init"
    _G_status=$?

    test "$_G_status" -ne 0 \
      && func_verbose "\`$1' not using Autoconf"

    (exit $_G_status)
}



## -------------------- ##
## Resource management. ##
## -------------------- ##

# This section contains definitions for functions that each ensure a
# particular resource (a file, or a non-empty configuration variable for
# example) is available, and if appropriate to extract default values
# from pertinent package files.  Where a variable already has a non-
# empty value (as set by the package's `bootstrap.conf'), that value is
# used in preference to deriving the default. Call them using their
# associated `require_*' variable to ensure that they are executed, at
# most, once.


# require_ac_aux_dir
# ------------------
# Extract ac_aux_dir from AC_CONFIG_AUX_DIR.
require_ac_aux_dir=func_require_ac_aux_dir
func_require_ac_aux_dir ()
{
    $debug_cmd

    $require_configure_ac

    if test -n "$configure_ac"; then
      func_extract_trace AC_CONFIG_AUX_DIR
      ac_aux_dir=$func_extract_trace_result

      case $ac_aux_dir in
        *\$*)
          func_fatal_error "\
can not expand unknown variable in AC_CONFIG_AUX_DIR argument."
          ;;
      esac
    fi

    require_ac_aux_dir=:
}


# require_ac_ltdl_dir
# -------------------
# Extract ac_ltdl_dir from LT_CONFIG_LTDL_DIR.
require_ac_ltdl_dir=func_require_ac_ltdl_dir
func_require_ac_ltdl_dir ()
{
    $debug_cmd

    $require_configure_ac

    if test -n "$configure_ac"; then
      func_extract_trace LT_CONFIG_LTDL_DIR
      ac_ltdl_dir=`expr "$func_extract_trace_result" : '\([^:]*\)'`

      case $ac_ltdl_dir in
        *\$*)
          func_fatal_error "\
can not expand unknown variable in LT_CONFIG_LTDL_DIR argument."
          ;;
      esac
    fi

    # Strip trailing slashes.
    ac_ltdl_dir=`echo "$ac_ltdl_dir" |$SED 's,/*$,,'`

    require_ac_ltdl_dir=:
}


# require_ac_ltdl_mode
# --------------------
# Extract mode name from LTDL_INIT options.
require_ac_ltdl_mode=func_require_ac_ltdl_mode
func_require_ac_ltdl_mode ()
{
    $debug_cmd

    $require_ac_ltdl_options

    case " $ac_ltdl_options " in
      *" nonrecursive "*) ac_ltdl_mode=nonrecursive ;;
      *" recursive "*)    ac_ltdl_mode=recursive    ;;
      *" subproject "*)   ac_ltdl_mode=subproject   ;;
    esac
      
    require_ac_ltdl_mode=:
}


# require_ac_ltdl_options
# -----------------------
# Extract ac_ltdl_options from LTDL_INIT.
require_ac_ltdl_options=func_require_ac_ltdl_options
func_require_ac_ltdl_options ()
{
    $debug_cmd

    $require_configure_ac

    if test -n "$configure_ac"; then
      func_extract_trace LTDL_INIT
      ac_ltdl_options=$func_extract_trace_result

      case $ac_ltdl_options in
        *\$*)
          func_fatal_error "\
can not expand unknown variable in LTDL_INIT argument."
          ;;
      esac
    fi

    require_ac_ltdl_mode=:
}


# require_ac_macro_dir
# --------------------
# Extract ac_macro_dir from AC_CONFIG_MACRO_DIR.
require_ac_macro_dir=func_require_ac_macro_dir
func_require_ac_macro_dir ()
{
    $debug_cmd

    $require_configure_ac

    if test -n "$configure_ac"; then
      func_extract_trace AC_CONFIG_MACRO_DIR
      ac_macro_dir=$func_extract_trace_result
    fi

    require_ac_macro_dir=:
}


# require_aclocal_amflags
# -----------------------
# Extract `$aclocal_amflags' from `Makefile.am' if present.
require_aclocal_amflags=func_require_aclocal_amflags
func_require_aclocal_amflags ()
{
    $debug_cmd

    $require_makefile_am

    test -n "$makefile_am" && {
      _G_sed_extract_aclocal_amflags='s|#.*$||
        /^[	 ]*ACLOCAL_AMFLAGS[	 ]*=/ {
            s|^.*=[	 ]*\(.*\)|aclocal_amflags="\1"|
            p
        }'

      _G_aclocal_flags_cmd=`$SED -n "$_G_sed_extract_aclocal_amflags" \
          "$makefile_am"`
      eval "$_G_aclocal_flags_cmd"

      func_verbose "ACLOCAL_AMFLAGS='$aclocal_amflags'"
    }

    require_aclocal_amflags=:
}


# require_am_macro_dir
# --------------------
# Set am_macro_dir to the first directory specified in ACLOCAL_AMFLAGS.
require_am_macro_dir=func_require_am_macro_dir
func_require_am_macro_dir ()
{
    $debug_cmd

    $require_aclocal_amflags

    _G_minus_I_seen=false
    for _G_arg in $aclocal_amflags; do
      case $_G_minus_I_seen,$_G_arg in
        :,*)   am_macro_dir=$_G_arg; break ;;
        *,-I)  _G_minus_I_seen=: ;;
        *,-I*) am_macro_dir=`expr x$_G_opt : 'x-I\(.*\)$'`; break ;;
      esac
    done

    require_am_macro_dir=:
}


# require_aux_dir
# ---------------
# Set aux_dir according to AC_CONFIG_AUX_DIR or else use the same
# heuristics as Autoconf to intuit an appropriate setting.
require_aux_dir=func_require_aux_dir
func_require_aux_dir ()
{
    $debug_cmd

    $require_ac_aux_dir

    test -n "$aux_dir" || aux_dir=$ac_aux_dir
    test -n "$aux_dir" || {
      # Try to intuit aux_dir using the same heuristic as Autoconf.
      for _G_dir in . .. ../..; do
        if test -f "$_G_dir/install-sh" || test -f "$_G_dir/install.sh"
        then
          aux_dir=$_G_dir
          break
        fi
      done
    }

    # Use the current directory if all else fails.
    test -n "$aux_dir" || aux_dir=.

    require_aux_dir=:
}


# require_configure_ac
# --------------------
# Ensure that there is a `configure.ac' or `configure.in' file in the
# current directory, and that `$configure_ac' contains its name.
require_configure_ac=func_require_configure_ac
func_require_configure_ac ()
{
    $debug_cmd

    test -z "$configure_ac" \
      && func_autoconf_configure configure.ac && configure_ac=configure.ac
    test -z "$configure_ac" \
      && func_autoconf_configure configure.in && configure_ac=configure.in
    test -z "$configure_ac" \
      || func_verbose "found \`$configure_ac'"

    require_configure_ac=:
}


# require_ltdl_dir
# ----------------
# If both are specified, ensure both --ltdl=LTDL_DIR and
# LT_CONFIG_LTDL_DIR agree, and set ltdl_dir to the value of either.
require_ltdl_dir=func_require_ltdl_dir
func_require_ltdl_dir ()
{
    $debug_cmd

    $require_ac_ltdl_dir

    test -n "$ltdl_dir" || ltdl_dir=$ac_ltdl_dir
    test -n "$ltdl_dir" || ltdl_dir=libltdl

    if test -n "$ac_ltdl_dir"; then
      test "$ac_ltdl_dir" = "$ltdl_dir" || func_fatal_error "\
--ltdl='$ltdl_dir' does not match LT_CONFIG_LTDL_DIR($ac_ltdl_dir)"
    fi

    require_ltdl_dir=:
}


# require_ltdl_mode
# -----------------
# If both are specified, ensure both command line setting and LTDL_INIT
# option agree, and set ltdl_mode to the value of either.
require_ltdl_mode=func_require_ltdl_mode
func_require_ltdl_mode ()
{
    $debug_cmd

    $require_ac_ltdl_mode

    test -n "$ltdl_mode" || ltdl_mode=$ac_ltdl_mode
    test -n "$ltdl_mode" || ltdl_mode=subproject

    if test -n "$ac_ltdl_mode"; then
      test "$ac_ltdl_mode" = "$ltdl_mode" || func_fatal_error "\
--$ltdl_mode does not match LTDL_INIT($ac_ltdl_mode)"
    fi

    require_ltdl_mode=:
}


# require_macro_dir
# -----------------
# If both are specified, ensure both ACLOCAL_AMFLAGS and
# AC_CONFIG_MACRO_DIR agree, and set macro_dir to the value of either.
require_macro_dir=func_require_macro_dir
func_require_macro_dir ()
{
    $debug_cmd

    $require_ac_macro_dir
    $require_am_macro_dir

    macro_dir=$ac_macro_dir
    test -n "$macro_dir" || macro_dir=$am_macro_dir
    test -n "$macro_dir" || macro_dir=m4

    if test -n "$ac_macro_dir" && test -n "$am_macro_dir"; then
      test "$ac_macro_dir" = "$am_macro_dir" || func_fatal_error "\
AC_CONFIG_MACRO_DIR([$ac_macro_dir]) conflicts with ACLOCAL_AMFLAGS=-I $am_macro_dir."
    fi

    require_macro_dir=:
}


# require_makefile_am
# -------------------
# If not already set, set makefile_am to `Makefile.am' if that file is
# present in the current directory.
require_makefile_am=func_require_makefile_am
func_require_makefile_am ()
{
    $debug_cmd

    test -n "$makefile_am" || makefile_am=Makefile.am

    if test -f Makefile.am; then
      func_verbose "found \`$makefile_am'"
    else
      makefile_am=
    fi

    require_makefile_am=:
}



## ----------- ##
##    Main.    ##
## ----------- ##

{
  # Lists of all files libtoolize has ever installed.  These are removed
  # before installing the latest files when --force was passed to help
  # ensure a clean upgrade.
  # Do not remove config.guess nor config.sub, we don't install them
  # without --install, and the project may not be using Automake.
  all_pkgconfig_files="ltmain.sh"
  all_pkgmacro_files="argz.m4 libtool.m4 ltdl.m4 ltoptions.m4 ltsugar.m4 ltversion.in ltversion.m4 lt~obsolete.m4"
  all_pkgltdl_files="COPYING.LIB Makefile Makefile.in Makefile.inc Makefile.am README acinclude.m4 aclocal.m4 argz_.h argz.c config.h.in config-h.in configure configure.ac configure.in libltdl/lt__alloc.h libltdl/lt__dirent.h libltdl/lt__glibc.h libltdl/lt__private.h libltdl/lt__strl.h libltdl/lt_dlloader.h libltdl/lt_error.h libltdl/lt_system.h libltdl/slist.h loaders/dld_link.c loaders/dlopen.c loaders/dyld.c loaders/load_add_on.c loaders/loadlibrary.c loaders/preopen.c loaders/shl_load.c lt__alloc.c lt__dirent.c lt__strl.c lt_dlloader.c lt_error.c ltdl.c ltdl.h slist.c"

  # Locations for important files:
  prefix=@prefix@
  datadir=@datadir@
  pkgdatadir=@pkgdatadir@
  pkgltdldir=@pkgdatadir@
  aclocaldir=@aclocaldir@

  seen_libtool=false
  seen_ltdl=false

  # test EBCDIC or ASCII
  case `echo X|tr X '\101'` in
   A) # ASCII based system
      # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
    SP2NL='tr \040 \012'
    NL2SP='tr \015\012 \040\040'
    ;;
   *) # EBCDIC based system
    SP2NL='tr \100 \n'
    NL2SP='tr \r\n \100\100'
    ;;
  esac

  # Allow the user to override the master libtoolize repository:
  if test -n "$_lt_pkgdatadir"; then
    pkgltdldir="$_lt_pkgdatadir"
    pkgdatadir="$_lt_pkgdatadir/libltdl"
    aclocaldir="$_lt_pkgdatadir/libltdl/m4"
  fi
  func_nonemptydir_p pkgltdldir
  func_nonemptydir_p pkgdatadir
  func_nonemptydir_p aclocaldir

  extract_trace=$pkgdatadir/config/extract-trace

  func_scan_files

  $require_ltdl_dir
  case $ltdl_dir in
  .) ltdlprefix= ;;
  *) ltdlprefix=$ltdl_dir/ ;;
  esac
  subproject_aux_dir=${ltdlprefix}config
  subproject_macro_dir=${ltdlprefix}m4

  # :::BE CAREFUL HERE:::
  # func_check_macros needs to check whether --ltdl was specified when
  # LTDL_INIT was not seen, so we can't just use one variable for both
  # conditions, or that check will be impossible.   No need to clutter the
  # rest of the code with '$opt_ltdl || $seen_ltdl' though, because we CAN
  # safely set opt_ltdl to true if LTDL_INIT was seen:
  $seen_ltdl && opt_ltdl=:

  func_install_pkgconfig_files
  func_install_pkgmacro_files
  func_install_pkgltdl_files

  func_check_macros
}

exit $exit_status

# Local Variables:
# mode:shell-script
# sh-indentation:2
# End:
]])