ltmain.sh 140 KB
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# ltmain.sh - Provide generalized library-building support services.
# NOTE: Changing this file will not affect anything until you rerun configure.
#
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
# Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

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# This file is distributed with OpenLDAP Software, which contains a
# configuration script generated by Autoconf, and is distributable
# under the same distributions terms as OpenLDAP inself.
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## Copyright 1998-2005 The OpenLDAP Foundation.
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## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted only as authorized by the OpenLDAP
## Public License.
##
## A copy of this license is available in the file LICENSE in the
## top-level directory of the distribution or, alternatively, at
## <http://www.OpenLDAP.org/license.html>.
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# Check that we have a working $echo.
if test "X$1" = X--no-reexec; then
  # Discard the --no-reexec flag, and continue.
  shift
elif test "X$1" = X--fallback-echo; then
  # Avoid inline document here, it may be left over
  :
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
  # Yippee, $echo works!
  :
else
  # Restart under the correct shell, and then maybe $echo will work.
  exec $SHELL "$0" --no-reexec ${1+"$@"}
fi

if test "X$1" = X--fallback-echo; then
  # used as fallback echo
  shift
  cat <<EOF
$*
EOF
  exit 0
fi

# The name of this program.
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progname=`$echo "$0" | ${SED} 's%^.*/%%'`
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modename="$progname"

# Constants.
PROGRAM=ltmain.sh
PACKAGE=libtool
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VERSION=1.4.3-OpenLDAP
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TIMESTAMP=""
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default_mode=
help="Try \`$progname --help' for more information."
magic="%%%MAGIC variable%%%"
mkdir="mkdir"
mv="mv -f"
rm="rm -f"

# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
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Xsed="${SED}"' -e 1s/^X//'
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sed_quote_subst='s/\([\\`\\"$\\\\]\)/\\\1/g'
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# test EBCDIC or ASCII                                                         
case `echo A|od -x` in                                                         
 *[Cc]1*) # EBCDIC based system                                                
  SP2NL="tr '\100' '\n'"                                                       
  NL2SP="tr '\r\n' '\100\100'"                                                 
  ;;                                                                           
 *) # Assume ASCII based system                                                
  SP2NL="tr '\040' '\012'"                                                     
  NL2SP="tr '\015\012' '\040\040'"                                             
  ;;                                                                           
esac                                                                           
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# NLS nuisances.
# Only set LANG and LC_ALL to C if already set.
# These must not be set unconditionally because not all systems understand
# e.g. LANG=C (notably SCO).
# We save the old values to restore during execute mode.
if test "${LC_ALL+set}" = set; then
  save_LC_ALL="$LC_ALL"; LC_ALL=C; export LC_ALL
fi
if test "${LANG+set}" = set; then
  save_LANG="$LANG"; LANG=C; export LANG
fi

# Make sure IFS has a sensible default
: ${IFS=" 	"}

if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
  echo "$modename: not configured to build any kind of library" 1>&2
  echo "Fatal configuration error.  See the $PACKAGE docs for more information." 1>&2
  exit 1
fi

# Global variables.
mode=$default_mode
nonopt=
prev=
prevopt=
run=
show="$echo"
show_help=
execute_dlfiles=
lo2o="s/\\.lo\$/.${objext}/"
o2lo="s/\\.${objext}\$/.lo/"

# Parse our command line options once, thoroughly.
while test $# -gt 0
do
  arg="$1"
  shift

  case $arg in
  -*=*) optarg=`$echo "X$arg" | $Xsed -e 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac

  # If the previous option needs an argument, assign it.
  if test -n "$prev"; then
    case $prev in
    execute_dlfiles)
      execute_dlfiles="$execute_dlfiles $arg"
      ;;
    *)
      eval "$prev=\$arg"
      ;;
    esac

    prev=
    prevopt=
    continue
  fi

  # Have we seen a non-optional argument yet?
  case $arg in
  --help)
    show_help=yes
    ;;

  --version)
    echo "$PROGRAM (GNU $PACKAGE) $VERSION$TIMESTAMP"
    exit 0
    ;;

  --config)
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    ${SED} -e '1,/^# ### BEGIN LIBTOOL CONFIG/d' -e '/^# ### END LIBTOOL CONFIG/,$d' $0
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    exit 0
    ;;

  --debug)
    echo "$progname: enabling shell trace mode"
    set -x
    ;;

  --dry-run | -n)
    run=:
    ;;

  --features)
    echo "host: $host"
    if test "$build_libtool_libs" = yes; then
      echo "enable shared libraries"
    else
      echo "disable shared libraries"
    fi
    if test "$build_old_libs" = yes; then
      echo "enable static libraries"
    else
      echo "disable static libraries"
    fi
    exit 0
    ;;

  --finish) mode="finish" ;;

  --mode) prevopt="--mode" prev=mode ;;
  --mode=*) mode="$optarg" ;;

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  --tag=*)
  	case "$optarg" in
	CC)
		;;
	disable-shared)
		build_libtool_libs=no
		;;
	disable-static)
		build_old_libs=no
		;;
	*)
	 	echo "unknown tag"
		exit 1;
	esac
	;;

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  --preserve-dup-deps) duplicate_deps="yes" ;;

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  --quiet | --silent)
    show=:
    ;;

  -dlopen)
    prevopt="-dlopen"
    prev=execute_dlfiles
    ;;

  -*)
    $echo "$modename: unrecognized option \`$arg'" 1>&2
    $echo "$help" 1>&2
    exit 1
    ;;

  *)
    nonopt="$arg"
    break
    ;;
  esac
done

if test -n "$prevopt"; then
  $echo "$modename: option \`$prevopt' requires an argument" 1>&2
  $echo "$help" 1>&2
  exit 1
fi

# If this variable is set in any of the actions, the command in it
# will be execed at the end.  This prevents here-documents from being
# left over by shells.
exec_cmd=

if test -z "$show_help"; then

  # Infer the operation mode.
  if test -z "$mode"; then
    case $nonopt in
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    *cc | *++ | gcc* | *-gcc* | xlc*)
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      mode=link
      for arg
      do
	case $arg in
	-c)
	   mode=compile
	   break
	   ;;
	esac
      done
      ;;
    *db | *dbx | *strace | *truss)
      mode=execute
      ;;
    *install*|cp|mv)
      mode=install
      ;;
    *rm)
      mode=uninstall
      ;;
    *)
      # If we have no mode, but dlfiles were specified, then do execute mode.
      test -n "$execute_dlfiles" && mode=execute

      # Just use the default operation mode.
      if test -z "$mode"; then
	if test -n "$nonopt"; then
	  $echo "$modename: warning: cannot infer operation mode from \`$nonopt'" 1>&2
	else
	  $echo "$modename: warning: cannot infer operation mode without MODE-ARGS" 1>&2
	fi
      fi
      ;;
    esac
  fi

  # Only execute mode is allowed to have -dlopen flags.
  if test -n "$execute_dlfiles" && test "$mode" != execute; then
    $echo "$modename: unrecognized option \`-dlopen'" 1>&2
    $echo "$help" 1>&2
    exit 1
  fi

  # Change the help message to a mode-specific one.
  generic_help="$help"
  help="Try \`$modename --help --mode=$mode' for more information."

  # These modes are in order of execution frequency so that they run quickly.
  case $mode in
  # libtool compile mode
  compile)
    modename="$modename: compile"
    # Get the compilation command and the source file.
    base_compile=
    prev=
    lastarg=
    srcfile="$nonopt"
    suppress_output=

    user_target=no
    for arg
    do
      case $prev in
      "") ;;
      xcompiler)
	# Aesthetically quote the previous argument.
	prev=
	lastarg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`

	case $arg in
	# Double-quote args containing other shell metacharacters.
	# Many Bourne shells cannot handle close brackets correctly
	# in scan sets, so we specify it separately.
	*[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
	  arg="\"$arg\""
	  ;;
	esac

	# Add the previous argument to base_compile.
	if test -z "$base_compile"; then
	  base_compile="$lastarg"
	else
	  base_compile="$base_compile $lastarg"
	fi
	continue
	;;
      esac

      # Accept any command-line options.
      case $arg in
      -o)
	if test "$user_target" != "no"; then
	  $echo "$modename: you cannot specify \`-o' more than once" 1>&2
	  exit 1
	fi
	user_target=next
	;;

      -static)
	build_old_libs=yes
	continue
	;;

      -prefer-pic)
	pic_mode=yes
	continue
	;;

      -prefer-non-pic)
	pic_mode=no
	continue
	;;

      -Xcompiler)
	prev=xcompiler
	continue
	;;

      -Wc,*)
	args=`$echo "X$arg" | $Xsed -e "s/^-Wc,//"`
	lastarg=
	save_ifs="$IFS"; IFS=','
	for arg in $args; do
	  IFS="$save_ifs"

	  # Double-quote args containing other shell metacharacters.
	  # Many Bourne shells cannot handle close brackets correctly
	  # in scan sets, so we specify it separately.
	  case $arg in
	    *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
	    arg="\"$arg\""
	    ;;
	  esac
	  lastarg="$lastarg $arg"
	done
	IFS="$save_ifs"
	lastarg=`$echo "X$lastarg" | $Xsed -e "s/^ //"`

	# Add the arguments to base_compile.
	if test -z "$base_compile"; then
	  base_compile="$lastarg"
	else
	  base_compile="$base_compile $lastarg"
	fi
	continue
	;;
      esac

      case $user_target in
      next)
	# The next one is the -o target name
	user_target=yes
	continue
	;;
      yes)
	# We got the output file
	user_target=set
	libobj="$arg"
	continue
	;;
      esac

      # Accept the current argument as the source file.
      lastarg="$srcfile"
      srcfile="$arg"

      # Aesthetically quote the previous argument.

      # Backslashify any backslashes, double quotes, and dollar signs.
      # These are the only characters that are still specially
      # interpreted inside of double-quoted scrings.
      lastarg=`$echo "X$lastarg" | $Xsed -e "$sed_quote_subst"`

      # Double-quote args containing other shell metacharacters.
      # Many Bourne shells cannot handle close brackets correctly
      # in scan sets, so we specify it separately.
      case $lastarg in
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
	lastarg="\"$lastarg\""
	;;
      esac

      # Add the previous argument to base_compile.
      if test -z "$base_compile"; then
	base_compile="$lastarg"
      else
	base_compile="$base_compile $lastarg"
      fi
    done

    case $user_target in
    set)
      ;;
    no)
      # Get the name of the library object.
      libobj=`$echo "X$srcfile" | $Xsed -e 's%^.*/%%'`
      ;;
    *)
      $echo "$modename: you must specify a target with \`-o'" 1>&2
      exit 1
      ;;
    esac

    # Recognize several different file suffixes.
    # If the user specifies -o file.o, it is replaced with file.lo
    xform='[cCFSfmso]'
    case $libobj in
    *.ada) xform=ada ;;
    *.adb) xform=adb ;;
    *.ads) xform=ads ;;
    *.asm) xform=asm ;;
    *.c++) xform=c++ ;;
    *.cc) xform=cc ;;
    *.cpp) xform=cpp ;;
    *.cxx) xform=cxx ;;
    *.f90) xform=f90 ;;
    *.for) xform=for ;;
    esac

    libobj=`$echo "X$libobj" | $Xsed -e "s/\.$xform$/.lo/"`

    case $libobj in
    *.lo) obj=`$echo "X$libobj" | $Xsed -e "$lo2o"` ;;
    *)
      $echo "$modename: cannot determine name of library object from \`$libobj'" 1>&2
      exit 1
      ;;
    esac

    if test -z "$base_compile"; then
      $echo "$modename: you must specify a compilation command" 1>&2
      $echo "$help" 1>&2
      exit 1
    fi

    # Delete any leftover library objects.
    if test "$build_old_libs" = yes; then
      removelist="$obj $libobj"
    else
      removelist="$libobj"
    fi

    $run $rm $removelist
    trap "$run $rm $removelist; exit 1" 1 2 15

    # On Cygwin there's no "real" PIC flag so we must build both object types
    case $host_os in
    cygwin* | mingw* | pw32* | os2*)
      pic_mode=default
      ;;
    esac
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    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
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991
992
993
994
995
996
997
998
999
1000
      # non-PIC code in shared libraries is not supported
      pic_mode=default
    fi

    # Calculate the filename of the output object if compiler does
    # not support -o with -c
    if test "$compiler_c_o" = no; then
      output_obj=`$echo "X$srcfile" | $Xsed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.${objext}
      lockfile="$output_obj.lock"
      removelist="$removelist $output_obj $lockfile"
      trap "$run $rm $removelist; exit 1" 1 2 15
    else
      need_locks=no
      lockfile=
    fi

    # Lock this critical section if it is needed
    # We use this script file to make the link, it avoids creating a new file
    if test "$need_locks" = yes; then
      until $run ln "$0" "$lockfile" 2>/dev/null; do
	$show "Waiting for $lockfile to be removed"
	sleep 2
      done
    elif test "$need_locks" = warn; then
      if test -f "$lockfile"; then
	echo "\
*** ERROR, $lockfile exists and contains:
`cat $lockfile 2>/dev/null`

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$run $rm $removelist
	exit 1
      fi
      echo $srcfile > "$lockfile"
    fi

    if test -n "$fix_srcfile_path"; then
      eval srcfile=\"$fix_srcfile_path\"
    fi

    # Only build a PIC object if we are building libtool libraries.
    if test "$build_libtool_libs" = yes; then
      # Without this assignment, base_compile gets emptied.
      fbsd_hideous_sh_bug=$base_compile

      if test "$pic_mode" != no; then
	# All platforms use -DPIC, to notify preprocessed assembler code.
	command="$base_compile $srcfile $pic_flag -DPIC"
      else
	# Don't build PIC code
	command="$base_compile $srcfile"
      fi
      if test "$build_old_libs" = yes; then
	lo_libobj="$libobj"
	dir=`$echo "X$libobj" | $Xsed -e 's%/[^/]*$%%'`
	if test "X$dir" = "X$libobj"; then
	  dir="$objdir"
	else
	  dir="$dir/$objdir"
	fi
	libobj="$dir/"`$echo "X$libobj" | $Xsed -e 's%^.*/%%'`

	if test -d "$dir"; then
	  $show "$rm $libobj"
	  $run $rm $libobj
	else
	  $show "$mkdir $dir"
	  $run $mkdir $dir
	  status=$?
	  if test $status -ne 0 && test ! -d $dir; then
	    exit $status
	  fi
	fi
      fi
      if test "$compiler_o_lo" = yes; then
	output_obj="$libobj"
	command="$command -o $output_obj"
      elif test "$compiler_c_o" = yes; then
	output_obj="$obj"
	command="$command -o $output_obj"
      fi

      $run $rm "$output_obj"
      $show "$command"
      if $run eval "$command"; then :
      else
	test -n "$output_obj" && $run $rm $removelist
	exit 1
      fi

      if test "$need_locks" = warn &&
	 test x"`cat $lockfile 2>/dev/null`" != x"$srcfile"; then
	echo "\
*** ERROR, $lockfile contains:
`cat $lockfile 2>/dev/null`

but it should contain:
$srcfile

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$run $rm $removelist
	exit 1
      fi

      # Just move the object if needed, then go on to compile the next one
      if test x"$output_obj" != x"$libobj"; then
	$show "$mv $output_obj $libobj"
	if $run $mv $output_obj $libobj; then :
	else
	  error=$?
	  $run $rm $removelist
	  exit $error
	fi
      fi

      # If we have no pic_flag, then copy the object into place and finish.
      if (test -z "$pic_flag" || test "$pic_mode" != default) &&
	 test "$build_old_libs" = yes; then
	# Rename the .lo from within objdir to obj
	if test -f $obj; then
	  $show $rm $obj
	  $run $rm $obj
	fi

	$show "$mv $libobj $obj"
	if $run $mv $libobj $obj; then :
	else
	  error=$?
	  $run $rm $removelist
	  exit $error
	fi

	xdir=`$echo "X$obj" | $Xsed -e 's%/[^/]*$%%'`
	if test "X$xdir" = "X$obj"; then
	  xdir="."
	else
	  xdir="$xdir"
	fi
	baseobj=`$echo "X$obj" | $Xsed -e "s%.*/%%"`
	libobj=`$echo "X$baseobj" | $Xsed -e "$o2lo"`
	# Now arrange that obj and lo_libobj become the same file
	$show "(cd $xdir && $LN_S $baseobj $libobj)"
	if $run eval '(cd $xdir && $LN_S $baseobj $libobj)'; then
	  # Unlock the critical section if it was locked
	  if test "$need_locks" != no; then
	    $run $rm "$lockfile"
	  fi
	  exit 0
	else
	  error=$?
	  $run $rm $removelist
	  exit $error
	fi
      fi

      # Allow error messages only from the first compilation.
      suppress_output=' >/dev/null 2>&1'
    fi

    # Only build a position-dependent object if we build old libraries.
    if test "$build_old_libs" = yes; then
      if test "$pic_mode" != yes; then
	# Don't build PIC code
	command="$base_compile $srcfile"
      else
	# All platforms use -DPIC, to notify preprocessed assembler code.
	command="$base_compile $srcfile $pic_flag -DPIC"
      fi
      if test "$compiler_c_o" = yes; then
	command="$command -o $obj"
	output_obj="$obj"
      fi

      # Suppress compiler output if we already did a PIC compilation.
      command="$command$suppress_output"
      $run $rm "$output_obj"
      $show "$command"
      if $run eval "$command"; then :
      else
	$run $rm $removelist
	exit 1
      fi

      if test "$need_locks" = warn &&
	 test x"`cat $lockfile 2>/dev/null`" != x"$srcfile"; then
	echo "\
*** ERROR, $lockfile contains:
`cat $lockfile 2>/dev/null`

but it should contain:
$srcfile

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$run $rm $removelist
	exit 1
      fi

      # Just move the object if needed
      if test x"$output_obj" != x"$obj"; then
	$show "$mv $output_obj $obj"
	if $run $mv $output_obj $obj; then :
	else
	  error=$?
	  $run $rm $removelist
	  exit $error
	fi
      fi

      # Create an invalid libtool object if no PIC, so that we do not
      # accidentally link it into a program.
      if test "$build_libtool_libs" != yes; then
	$show "echo timestamp > $libobj"
	$run eval "echo timestamp > \$libobj" || exit $?
      else
	# Move the .lo from within objdir
	$show "$mv $libobj $lo_libobj"
	if $run $mv $libobj $lo_libobj; then :
	else
	  error=$?
	  $run $rm $removelist
	  exit $error
	fi
      fi
    fi

    # Unlock the critical section if it was locked
    if test "$need_locks" != no; then
      $run $rm "$lockfile"
    fi

    exit 0
    ;;

  # libtool link mode
  link | relink)
    modename="$modename: link"
    case $host in
    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2*)
      # It is impossible to link a dll without this setting, and
      # we shouldn't force the makefile maintainer to figure out
      # which system we are compiling for in order to pass an extra
      # flag for every libtool invokation.
      # allow_undefined=no

      # FIXME: Unfortunately, there are problems with the above when trying
      # to make a dll which has undefined symbols, in which case not
      # even a static library is built.  For now, we need to specify
      # -no-undefined on the libtool link line when we can be certain
      # that all symbols are satisfied, otherwise we get a static library.
      allow_undefined=yes
      ;;
    *)
      allow_undefined=yes
      ;;
    esac
    libtool_args="$nonopt"
    compile_command="$nonopt"
    finalize_command="$nonopt"

    compile_rpath=
    finalize_rpath=
    compile_shlibpath=
    finalize_shlibpath=
    convenience=
    old_convenience=
    deplibs=
    old_deplibs=
    compiler_flags=
    linker_flags=
    dllsearchpath=
    lib_search_path=`pwd`

    avoid_version=no
    dlfiles=
    dlprefiles=
    dlself=no
    export_dynamic=no
    export_symbols=
    export_symbols_regex=
    generated=
    libobjs=
    ltlibs=
    module=no
    no_install=no
    objs=
    prefer_static_libs=no
    preload=no
    prev=
    prevarg=
    release=
    rpath=
    xrpath=
    perm_rpath=
    temp_rpath=
    thread_safe=no
    vinfo=

    # We need to know -static, to get the right output filenames.
    for arg
    do
      case $arg in
      -all-static | -static)
	if test "X$arg" = "X-all-static"; then
	  if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
	    $echo "$modename: warning: complete static linking is impossible in this configuration" 1>&2
	  fi
	  if test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	else
	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	fi
	build_libtool_libs=no
	build_old_libs=yes
	prefer_static_libs=yes
	break
	;;
      esac
    done

    # See if our shared archives depend on static archives.
    test -n "$old_archive_from_new_cmds" && build_old_libs=yes

    # Go through the arguments, transforming them on the way.
    while test $# -gt 0; do
      arg="$1"
      shift
      case $arg in
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
	qarg=\"`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`\" ### testsuite: skip nested quoting test
	;;
      *) qarg=$arg ;;
      esac
      libtool_args="$libtool_args $qarg"

      # If the previous option needs an argument, assign it.
      if test -n "$prev"; then
	case $prev in
	output)
	  compile_command="$compile_command @OUTPUT@"
	  finalize_command="$finalize_command @OUTPUT@"
	  ;;
	esac

	case $prev in
	dlfiles|dlprefiles)
	  if test "$preload" = no; then
	    # Add the symbol object into the linking commands.
	    compile_command="$compile_command @SYMFILE@"
	    finalize_command="$finalize_command @SYMFILE@"
	    preload=yes
	  fi
	  case $arg in
	  *.la | *.lo) ;;  # We handle these cases below.
	  force)
	    if test "$dlself" = no; then
	      dlself=needless
	      export_dynamic=yes
	    fi
	    prev=
	    continue
	    ;;
	  self)
	    if test "$prev" = dlprefiles; then
	      dlself=yes
	    elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
	      dlself=yes
	    else
	      dlself=needless
	      export_dynamic=yes
	    fi
	    prev=
	    continue
	    ;;
	  *)
	    if test "$prev" = dlfiles; then
	      dlfiles="$dlfiles $arg"
	    else
	      dlprefiles="$dlprefiles $arg"
	    fi
	    prev=
	    continue
	    ;;
	  esac
	  ;;
	expsyms)
	  export_symbols="$arg"
	  if test ! -f "$arg"; then
	    $echo "$modename: symbol file \`$arg' does not exist"
	    exit 1
	  fi
	  prev=
	  continue
	  ;;
	expsyms_regex)
	  export_symbols_regex="$arg"
	  prev=
	  continue
	  ;;
	release)
	  release="-$arg"
	  prev=
	  continue
	  ;;
	rpath | xrpath)
	  # We need an absolute path.
	  case $arg in
	  [\\/]* | [A-Za-z]:[\\/]*) ;;
	  *)
	    $echo "$modename: only absolute run-paths are allowed" 1>&2
	    exit 1
	    ;;
	  esac
	  if test "$prev" = rpath; then
	    case "$rpath " in
	    *" $arg "*) ;;
	    *) rpath="$rpath $arg" ;;
	    esac
	  else
	    case "$xrpath " in
	    *" $arg "*) ;;
	    *) xrpath="$xrpath $arg" ;;
	    esac
	  fi
	  prev=
	  continue
	  ;;
	xcompiler)
	  compiler_flags="$compiler_flags $qarg"
	  prev=
	  compile_command="$compile_command $qarg"
	  finalize_command="$finalize_command $qarg"
	  continue
	  ;;
	xlinker)
	  linker_flags="$linker_flags $qarg"
	  compiler_flags="$compiler_flags $wl$qarg"
	  prev=
	  compile_command="$compile_command $wl$qarg"
	  finalize_command="$finalize_command $wl$qarg"
	  continue
	  ;;
	*)
	  eval "$prev=\"\$arg\""
	  prev=
	  continue
	  ;;
	esac
      fi # test -n $prev

      prevarg="$arg"

      case $arg in
      -all-static)
	if test -n "$link_static_flag"; then
	  compile_command="$compile_command $link_static_flag"
	  finalize_command="$finalize_command $link_static_flag"
	fi
	continue
	;;

      -allow-undefined)
	# FIXME: remove this flag sometime in the future.
	$echo "$modename: \`-allow-undefined' is deprecated because it is the default" 1>&2
	continue
	;;

      -avoid-version)
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