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##                                                          -*- Autoconf -*-

# Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006

# Free Software Foundation, Inc.

#

# This file is free software; the Free Software Foundation

# gives unlimited permission to copy and/or distribute it,

# with or without modifications, as long as this notice is preserved.

# serial 6

# AM_ENABLE_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR])

# ---------------------------------------------------

# Add --enable-multilib to configure.

AC_DEFUN([AM_ENABLE_MULTILIB],

[# Default to --enable-multilib

AC_ARG_ENABLE(multilib,

[  --enable-multilib       build many library versions (default)],

[case "$enableval" in

  yes) multilib=yes ;;

  no)  multilib=no ;;

  *)   AC_MSG_ERROR([bad value $enableval for multilib option]) ;;

 esac],

              [multilib=yes])

# We may get other options which we leave undocumented:

# --with-target-subdir, --with-multisrctop, --with-multisubdir

# See config-ml.in if you want the gory details.

if test "$srcdir" = "."; then

  if test "$with_target_subdir" != "."; then

    multi_basedir="$srcdir/$with_multisrctop../$2"

  else

    multi_basedir="$srcdir/$with_multisrctop$2"

  fi

else

  multi_basedir="$srcdir/$2"

fi

AC_SUBST(multi_basedir)

# Even if the default multilib is not a cross compilation,

# it may be that some of the other multilibs are.

if test $cross_compiling = no && test $multilib = yes \

   && test "x${with_multisubdir}" != x ; then

   cross_compiling=maybe

fi

AC_OUTPUT_COMMANDS([

# Only add multilib support code if we just rebuilt the top-level

# Makefile.

case " $CONFIG_FILES " in

 *" ]m4_default([$1],Makefile)[ "*)

   ac_file=]m4_default([$1],Makefile)[ . ${multi_basedir}/config-ml.in

   ;;

esac],

                   [

srcdir="$srcdir"

host="$host"

target="$target"

with_multisubdir="$with_multisubdir"

with_multisrctop="$with_multisrctop"

with_target_subdir="$with_target_subdir"

ac_configure_args="${multilib_arg} ${ac_configure_args}"

multi_basedir="$multi_basedir"

CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}

CC="$CC"])])dnl