#!/bin/sh
#
# configure -- custom configure script for ScummVM.
#
# ScummVM is the legal property of its developers, whose names
# are too numerous to list here. Please refer to the COPYRIGHT
# file distributed with this source distribution.
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/trunk/base/main.cpp $
# $Id$

# Save the current environment variables for next runs
SAVED_CONFIGFLAGS=$@
SAVED_LDFLAGS=$LDFLAGS
SAVED_CXX=$CXX
SAVED_CXXFLAGS=$CXXFLAGS
SAVED_CPPFLAGS=$CPPFLAGS
SAVED_ASFLAGS=$ASFLAGS
SAVED_WINDRESFLAGS=$WINDRESFLAGS

# Use environment vars if set
CXXFLAGS="$CXXFLAGS $CPPFLAGS"

# Backslashes into forward slashes:
# The following OS/2 specific code is performed to deal with handling of backslashes by ksh.
# Borrowed from the Sane configure script

if test "$ac_emxsupport" != "no" -a "$ac_emxsupport" != "NO"; then
	ac_save_IFS="$IFS"
	IFS="\\"
	ac_TEMP_PATH=
	for ac_dir in $PATH; do
		IFS=$ac_save_IFS
		if test -z "$ac_TEMP_PATH"; then
			ac_TEMP_PATH="$ac_dir"
		else
			ac_TEMP_PATH="$ac_TEMP_PATH/$ac_dir"
		fi
	done
	PATH="$ac_TEMP_PATH"
	export PATH
	unset ac_TEMP_PATH
fi

set_var() {
	eval ${1}='${2}'
}

get_var() {
	eval echo \$${1}
}

# Add an engine: id name build subengines
add_engine() {
	_engines="${_engines} ${1}"
	set_var _engine_${1}_name "${2}"
	set_var _engine_${1}_build "${3}"
	set_var _engine_${1}_subengines "${4}"
	for sub in ${4}; do
		set_var _engine_${sub}_sub "yes"
	done
}

add_engine scumm "SCUMM" yes "scumm_7_8 he"
add_engine scumm_7_8 "v7 & v8 games" yes
add_engine he "HE71+ games" yes
add_engine agi "AGI" yes
add_engine agos "AGOS" yes "agos2"
add_engine agos2 "AGOS 2 games" yes
add_engine cine "Cinematique evo 1" yes
add_engine cruise "Cinematique evo 2" yes
add_engine draci "Dragon History" no
add_engine drascula "Drascula: The Vampire Strikes Back" yes
add_engine gob "Gobli*ns" yes
add_engine groovie "Groovie" yes "groovie2"
add_engine groovie2 "Groovie 2 games" no
add_engine igor "Igor: Objective Uikokahonia" no
add_engine kyra "Legend of Kyrandia" yes "lol"
add_engine lol "Lands of Lore" no
add_engine lure "Lure of the Temptress" yes
add_engine m4 "M4/MADS" no
add_engine made "MADE" yes
add_engine parallaction "Parallaction" yes
add_engine queen "Flight of the Amazon Queen" yes
add_engine saga "SAGA" yes "ihnm saga2"
add_engine ihnm "IHNM" yes
add_engine saga2 "SAGA 2 games" no
add_engine sci "SCI" yes "sci32"
add_engine sci32 "SCI32 games" no
add_engine sky "Beneath a Steel Sky" yes
add_engine sword1 "Broken Sword 1" yes
add_engine sword2 "Broken Sword 2" yes
add_engine teenagent "Teen Agent" no
add_engine tinsel "Tinsel" yes
add_engine touche "Touche: The Adventures of the Fifth Musketeer" yes
add_engine tucker "Bud Tucker in Double Trouble" yes


#
# Default settings
#
# Default lib behaviour yes/no/auto
_vorbis=auto
_tremor=auto
_flac=auto
_mad=auto
_alsa=auto
_zlib=auto
_mpeg2=no
_fluidsynth=auto
_16bit=auto
_readline=auto
# Default option behaviour yes/no
_debug_build=auto
_release_build=auto
_text_console=no
_mt32emu=yes
_build_hq_scalers=yes
_build_scalers=yes
_indeo3=auto
# Default vkeybd/keymapper options
_vkeybd=no
_keymapper=no
# Default platform settings
_backend=sdl
_endian=unknown
_need_memalign=no
_have_x86=no
_verbose_build=no
_dynamic_modules=no
_plugins_default=static
_nasm=auto
# Default commands
_ranlib=ranlib
_strip=strip
_ar="ar cru"
_as="as"
_windres=windres
_win32path="C:/scummvm"
_aos4path="Games:ScummVM"
_staticlibpath=/sw
_sdlconfig=sdl-config
_sdlpath="$PATH"
_nasmpath="$PATH"
NASMFLAGS=""
NASM=""
_prefix=/usr/local
# For cross compiling
_host=""
_host_cpu=""
_host_vendor=""
_host_os=""
_host_alias=""

_srcdir=`dirname $0`
_port_mk="ports.mk"

# Determine a tmp file name, using mktemp(1) when available.
if type mktemp > /dev/null 2>&1 ; then
	TMPO=`mktemp /tmp/scummvm-conf.XXXXXXXXXX`
else
	TMPO=./scummvm-conf
fi
TMPC=${TMPO}.cpp
TMPLOG=config.log

cc_check() {
	echo >> "$TMPLOG"
	cat "$TMPC" >> "$TMPLOG"
	echo >> "$TMPLOG"
	echo "$CXX $TMPC -o $TMPO$HOSTEXEEXT $@" >> "$TMPLOG"
	rm -f "$TMPO$HOSTEXEEXT"
	( $CXX $CXXFLAGS "$TMPC" -o "$TMPO$HOSTEXEEXT" "$@" ) >> "$TMPLOG" 2>&1
	TMP="$?"
	echo >> "$TMPLOG"
	return "$TMP"
}

#
# Function to provide echo -n for bourne shells that don't have it
#
echo_n() {
	printf "$@"
}

echocheck() {
	echo_n "Checking for $@... "
}

# Add a line of data to config.mk.
add_line_to_config_mk() {
	_config_mk_data="$_config_mk_data"'
'"$1"
}

# Add a line of data to config.h.
add_line_to_config_h() {
	_config_h_data="$_config_h_data"'
'"$1"
}

add_to_config_h_if_yes() {
	if test "$1" = yes ; then
		add_line_to_config_h "$2"
	else
		add_line_to_config_h "/* $2 */"
	fi
}

# Conditionally add a line of data to config.mk. Takes two parameters:
# The first one can be set to 'no' to "comment out" the line, i.e.
# make it ineffective, use 'yes' otherwise.
# The second param is the line to insert.
add_to_config_mk_if_yes() {
	if test "$1" = yes ; then
		add_line_to_config_mk "$2"
	else
		add_line_to_config_mk "# $2"
	fi
}

# Conditionally add a line of data to config.mk. Takes two parameters:
# The first one can be set to 'yes' to "comment out" the line, i.e.
# make it ineffective, use 'no' otherwise.
# The second param is the line to insert.
add_to_config_mk_if_no() {
	if test "$1" = no ; then
		add_line_to_config_mk "$2"
	else
		add_line_to_config_mk "# $2"
	fi
}

#
# Determine sdl-config
#
# TODO: small bit of code to test sdl useability
find_sdlconfig() {
	echo_n "Looking for sdl-config... "
	sdlconfigs="$_sdlconfig:sdl-config:sdl11-config:sdl12-config"
	_sdlconfig=

	IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="$SEPARATOR"
	for path_dir in $_sdlpath; do
		#reset separator to parse sdlconfigs
		IFS=":"
		for sdlconfig in $sdlconfigs; do
			if test -f "$path_dir/$sdlconfig" ; then
				_sdlconfig="$path_dir/$sdlconfig"
				echo $_sdlconfig
				# Save the prefix
				_sdlpath=$path_dir
				if test `basename $path_dir` = bin ; then
					_sdlpath=`dirname $path_dir`
				fi
				# break at first sdl-config found in path
				break 2
			fi
		done
	done

	IFS="$ac_save_ifs"

	if test -z "$_sdlconfig"; then
		echo "none found!"
		exit 1
	fi
}

#
# Determine extension used for executables
#
get_system_exe_extension() {
	case $1 in
	mingw* | *os2-emx | wince)
		_exeext=".exe"
		;;
	arm-riscos)
		_exeext=",ff8"
		;;
	gp2xwiz-linux)
		_exeext=".wiz"
		;;	
	gp2x-linux)
		_exeext=".gp2x"
		;;	
	dreamcast | wii | gamecube | nds | psp | ps2)
		_exeext=".elf"
		;;
	*)
		_exeext=""
		;;
	esac
}

#
# Generic options functions
#

# Show the configure help line for an option
option_help() {
	tmpopt=`echo $1 | sed 's/_/-/g'`
	option=`echo "--${tmpopt}                       " | sed "s/\(.\{23\}\).*/\1/"`
	echo "  ${option}  ${2}"
}

# Show an error about an unknown option
option_error() {
	echo "error: unrecognised option: $ac_option
Try \`$0 --help' for more information." >&2
	exit 1
}


#
# Engine handling functions
#

# Get the name of the engine
get_engine_name() {
	get_var _engine_$1_name
}

# Will this engine be built?
get_engine_build() {
	get_var _engine_$1_build
}

# Get the subengines
get_engine_subengines() {
	get_var _engine_$1_subengines
}

# Ask if this is a subengine
get_engine_sub() {
	sub=`get_var _engine_$1_sub`
	if test -z "$sub" ; then
		sub=no
	fi
	echo $sub
}

# Enable *all* engines
engine_enable_all() {
	for engine in $_engines; do
		set_var _engine_${engine}_build "yes"
	done
}

# Disable *all* engines
engine_disable_all() {
	for engine in $_engines; do
		set_var _engine_${engine}_build "no"
	done
}

# Enable the given engine
engine_enable() {
	# Get the parameter
	if ( echo $1 | grep '=' ) 2> /dev/null > /dev/null ; then
		eng=`echo $1 | cut -d '=' -f 1`
		opt=`echo $1 | cut -d '=' -f 2`
	else
		eng=$1
		opt=yes
	fi
	engine=`echo $eng | sed 's/-/_/g'`

	# Filter the parameter for the subengines
	if test "`get_engine_sub ${engine}`" != "no" -a "$opt" != "yes" ; then
		option_error
		return
	fi

	if test "$opt" = "static" -o "$opt" = "dynamic" -o "$opt" = "yes" ; then
		if test "`get_engine_name ${engine}`" != "" ; then
			set_var _engine_${engine}_build "$opt"
		else
			option_error
		fi
	else
		option_error
	fi
}

# Disable the given engine
engine_disable() {
	# Filter malformed options
	if ( echo $1 | grep '=' ) 2> /dev/null > /dev/null ; then
		option_error
		return
	fi

	engine=`echo $1 | sed 's/-/_/g'`
	if test "`get_engine_name ${engine}`" != "" ; then
		set_var _engine_${engine}_build "no"
	else
		option_error
	fi
}

# Show the configure help line for a given engine
show_engine_help() {
	if test `get_engine_build $1` = yes ; then
		option="disable"
		do="don't "
	else
		option="enable"
		do=""
	fi
	name=`get_engine_name $1`
	option_help ${option}-${1} "${do}build the ${name} engine"
	for sub in `get_engine_subengines $1`; do
		show_subengine_help $sub $1
	done
}

# Show the configure help line for a given subengine
show_subengine_help() {
	if test `get_engine_build $1` = yes ; then
		option="disable"
		do="exclude"
	else
		option="enable"
		do="include"
	fi
	name=`get_engine_name $1`
	parent=`get_engine_name $2`
	option_help ${option}-${1} "${do} the ${name} in ${parent} engine"
}

# Prepare the strings about the engines to build
prepare_engine_build_strings() {
	string=`get_engine_build_string $1 static`
	if test -n "$string" ; then
		_engines_built_static="${_engines_built_static}#$string@"
	fi

	string=`get_engine_build_string $1 dynamic`
	if test -n "$string" ; then
		_engines_built_dynamic="${_engines_built_dynamic}#$string@"
	fi

	string=`get_engine_build_string $1 no`
	if test -n "$string" ; then
		_engines_skipped="${_engines_skipped}#$string@"
	fi
}

# Get the string about building an engine
get_engine_build_string() {
	engine_string=""
	engine_build=`get_engine_build $1`
	show=no

	# Check if the current engine should be shown for the current status
	if test $engine_build = $2 ; then
		show=yes
	else
		# Test for disabled sub-engines
		if test $2 = no ; then
			for subeng in `get_engine_subengines $1` ; do
				if test `get_engine_build $subeng` = no ; then
					engine_build=no
					show=yes
				fi
			done
		fi
	fi

	# Convert static/dynamic to yes to ease the check of subengines
	if test $engine_build != no ; then
		engine_build=yes
	fi

	# The engine should be shown, build the string
	if test $show = yes ; then
		build_string_func=get_${1}_build_string
		if ( type $build_string_func | grep function ) 2> /dev/null > /dev/null ; then
			engine_string=`$build_string_func $1 $engine_build`
		else
			engine_string=`get_subengines_build_string $1 $engine_build`
		fi

		engine_string="`get_engine_name $1` $engine_string"
	fi

	echo $engine_string
}

# Get the string about building subengines
get_subengines_build_string() {
	all=yes
	subengine_string=$3
	for subeng in `get_engine_subengines $1` ; do
		if test `get_engine_build $subeng` = $2 ; then
			subengine_string="$subengine_string [`get_engine_name $subeng`]"
		else
			all=no
		fi
	done
	if test $2 != no ; then
		if test -n "$subengine_string" ; then
			if test $all = yes ; then
				subengine_string="[all games]"
			fi
		fi
	fi

	echo $subengine_string
}

# Engine specific build strings
get_scumm_build_string() {
	if test `get_engine_build $1` != no ; then
		if test $2 != no ; then
			base="[v0-v6 games]"
		fi
		get_subengines_build_string $1 $2 "$base"
	fi
}

get_saga_build_string() {
	if test `get_engine_build $1` != no ; then
		if test $2 != no ; then
			base="[ITE]"
		fi
		get_subengines_build_string $1 $2 "$base"
	fi
}

#
# Greet user
#
echo "Running ScummVM configure..."
echo "Configure run on" `date` > $TMPLOG

#
# Check any parameters we received
#
# TODO:
# * Change --disable-mad / --enable-mad to the way it's done in autoconf:
#  That is, --without-mad / --with-mad=/prefix/to/mad. Useful for people
#  who have Mad/Vorbis/ALSA installed in a non-standard locations.
#

for parm in "$@" ; do
	if test "$parm" = "--help" || test "$parm" = "-help" || test "$parm" = "-h" ; then
		for engine in $_engines; do
			if test `get_engine_sub $engine` = no ; then
				engines_help="$engines_help`show_engine_help $engine`
"
			fi
		done
		cat << EOF

Usage: $0 [OPTIONS]...

Configuration:
  -h, --help             display this help and exit
  --backend=BACKEND      backend to build (sdl, dc, gp2x, gp2xwiz, iphone, morphos, nds, psp, ps2, wii, wince, linuxmoto, null) [sdl]

Installation directories:
  --prefix=DIR           use this prefix for installing ScummVM [/usr/local]
  --bindir=DIR           directory to install the scummvm binary in [PREFIX/bin]
  --mandir=DIR           directory to install the manpage in [PREFIX/share/man]
  --datadir=DIR          directory to install the data files in [PREFIX/share]
  --libdir=DIR           directory to install the plugins in [PREFIX/lib]

Special configuration feature:
  --host=HOST            cross-compile to target HOST (arm-linux, ...)
                         special targets: linupy for Yopy PDA
                                          dreamcast for Sega Dreamcast
                                          wii for Nintendo Wii
                                          gamecube for Nintendo Gamecube
                                          nds for Nintendo DS
                                          iphone for Apple iPhone
                                          wince for Windows CE
                                          psp for PlayStation Portable 
                                          ps2 for PlayStation 2

Game engines:
  --enable-all-engines     enable all engines
  --disable-all-engines    disable all engines
$engines_help
Optional Features:
  --disable-debug          disable building with debugging symbols
  --enable-Werror          treat warnings as errors
  --enable-plugins         enable the support for dynamic plugins
  --default-dynamic        make plugins dynamic by default
  --disable-mt32emu        don't enable the integrated MT-32 emulator
  --disable-16bit          don't enable 16bit color support
  --disable-hq-scalers     exclude HQ2x and HQ3x scalers
  --disable-scalers        exclude scalers
  --enable-text-console    use text console instead of graphical console
  --enable-verbose-build   enable regular echoing of commands during build process

Optional Libraries:
  --with-alsa-prefix=DIR   Prefix where alsa is installed (optional)
  --disable-alsa           disable ALSA midi sound support [autodetect]

  --with-ogg-prefix=DIR    Prefix where libogg is installed (optional)
  --with-vorbis-prefix=DIR Prefix where libvorbis is installed (optional)
  --disable-vorbis         disable Ogg Vorbis support [autodetect]

  --with-tremor-prefix=DIR Prefix where tremor is installed (optional)
  --disable-tremor         disable tremor support [autodetect]

  --with-mad-prefix=DIR    Prefix where libmad is installed (optional)
  --disable-mad            disable libmad (MP3) support [autodetect]

  --with-flac-prefix=DIR   Prefix where libFLAC is installed (optional)
  --disable-flac           disable FLAC support [autodetect]

  --with-zlib-prefix=DIR   Prefix where zlib is installed (optional)
  --disable-zlib           disable zlib (compression) support [autodetect]

  --with-mpeg2-prefix=DIR  Prefix where libmpeg2 is installed (optional)
  --enable-mpeg2           enable mpeg2 codec for cutscenes [no]

  --disable-indeo3         disable Indeo3 decoder [autodetect]

  --with-fluidsynth-prefix=DIR  Prefix where libfluidsynth is installed (optional)
  --disable-fluidsynth     disable fluidsynth MIDI driver [autodetect]

  --with-sdl-prefix=DIR    Prefix where the sdl-config script is installed (optional)

  --with-nasm-prefix=DIR   Prefix where nasm executable is installed (optional)
  --disable-nasm           disable assembly language optimizations [autodetect]

  --with-readline-prefix=DIR    Prefix where readline is installed (optional)
  --disable-readline       disable readline support in text console [autodetect]

Some influential environment variables:
  LDFLAGS        linker flags, e.g. -L<lib dir> if you have libraries in a
                 nonstandard directory <lib dir>
  CXX            C++ compiler command
  CXXFLAGS       C++ compiler flags
  CPPFLAGS       C++ preprocessor flags, e.g. -I<include dir> if you have
                 headers in a nonstandard directory <include dir>
  ASFLAGS        assembler flags
  WINDRESFLAGS   Windows resource compiler flags

EOF
		exit 0
	fi
done # for parm in ...

for ac_option in $@; do
	case "$ac_option" in
	--disable-16bit)          _16bit=no       ;;
	--disable-hq-scalers)     _build_hq_scalers=no ;;
	--disable-scalers)        _build_scalers=no ;;
	--enable-alsa)            _alsa=yes       ;;
	--disable-alsa)           _alsa=no        ;;
	--enable-vorbis)          _vorbis=yes     ;;
	--disable-vorbis)         _vorbis=no      ;;
	--enable-tremor)          _tremor=yes     ;;
	--disable-tremor)         _tremor=no      ;;
	--enable-flac)            _flac=yes       ;;
	--disable-flac)           _flac=no        ;;
	--enable-mad)             _mad=yes        ;;
	--disable-mad)            _mad=no         ;;
	--enable-zlib)            _zlib=yes       ;;
	--disable-zlib)           _zlib=no        ;;
	--enable-nasm)            _nasm=yes       ;;
	--disable-nasm)           _nasm=no        ;;
	--enable-mpeg2)           _mpeg2=yes      ;;
	--disable-indeo3)         _indeo3=no      ;;
	--enable-indeo3)          _indeo3=yes     ;;
	--disable-fluidsynth)     _fluidsynth=no  ;;
	--enable-readline)        _readline=yes   ;;
	--disable-readline)       _readline=no    ;;
	--enable-verbose-build)   _verbose_build=yes ;;
	--enable-plugins)         _dynamic_modules=yes ;;
	--default-dynamic)        _plugins_default=dynamic ;;
	--enable-mt32emu)         _mt32emu=yes    ;;
	--disable-mt32emu)        _mt32emu=no     ;;
	--enable-vkeybd)          _vkeybd=yes     ;;
	--disable-vkeybd)         _vkeybd=no      ;;
	--enable-keymapper)       _keymapper=yes  ;;
	--disable-keymapper)      _keymapper=no   ;;
	--enable-text-console)    _text_console=yes ;;
	--disable-text-console)   _text_console=no ;;
	--with-fluidsynth-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		FLUIDSYNTH_CFLAGS="-I$arg/include"
		FLUIDSYNTH_LIBS="-L$arg/lib"
		;;
	--with-mpeg2-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		MPEG2_CFLAGS="-I$arg/include"
		MPEG2_LIBS="-L$arg/lib"
		;;
	--with-alsa-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		ALSA_CFLAGS="-I$arg/include"
		ALSA_LIBS="-L$arg/lib"
		;;
	--with-ogg-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		OGG_CFLAGS="-I$arg/include"
		OGG_LIBS="-L$arg/lib"
		;;
	--with-vorbis-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		VORBIS_CFLAGS="-I$arg/include"
		VORBIS_LIBS="-L$arg/lib"
		;;
	--with-tremor-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		TREMOR_CFLAGS="-I$arg/include"
		TREMOR_LIBS="-L$arg/lib"
		;;
	--with-flac-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		FLAC_CFLAGS="-I$arg/include"
		FLAC_LIBS="-L$arg/lib"
		;;
	--with-mad-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		MAD_CFLAGS="-I$arg/include"
		MAD_LIBS="-L$arg/lib"
		;;
	--with-zlib-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		ZLIB_CFLAGS="-I$arg/include"
		ZLIB_LIBS="-L$arg/lib"
		;;
	--with-readline-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		READLINE_CFLAGS="-I$arg/include"
		READLINE_LIBS="-L$arg/lib"
		;;
	--backend=*)
		_backend=`echo $ac_option | cut -d '=' -f 2`
		;;
	--enable-debug)
		_debug_build=yes
		;;
	--disable-debug)
		_debug_build=no
		;;
	--enable-Werror)
		CXXFLAGS="$CXXFLAGS -Werror"
		;;
	--enable-release)
		_release_build=yes
		;;
	--disable-release)
		_release_build=no
		;;
	--enable-profiling)
		CXXFLAGS="$CXXFLAGS -pg"
		LDFLAGS="$LDFLAGS -pg"
		;;
	--with-sdl-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		_sdlpath="$arg:$arg/bin"
		;;
	--with-nasm-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		_nasmpath="$arg:$arg/bin"
		;;
	--with-staticlib-prefix=*)
		_staticlibpath=`echo $ac_option | cut -d '=' -f 2`
		;;
	--host=*)
		_host=`echo $ac_option | cut -d '=' -f 2`
		;;
	--prefix=*)
		_prefix=`echo $ac_option | cut -d '=' -f 2`
		;;
	--bindir=*)
		_bindir=`echo $ac_option | cut -d '=' -f 2`
		;;
	--mandir=*)
		_mandir=`echo $ac_option | cut -d '=' -f 2`
		;;
	--datadir=*)
		_datadir=`echo $ac_option | cut -d '=' -f 2`
		;;
	--libdir=*)
		_libdir=`echo $ac_option | cut -d '=' -f 2`
		;;
	--enable-all-engines)
		engine_enable_all
		;;
	--disable-all-engines)
		engine_disable_all
		;;
	--enable-*)
		engine_enable `echo $ac_option | cut -d '-' -f 4-`
		;;
	--disable-*)
		engine_disable `echo $ac_option | cut -d '-' -f 4-`
		;;
	*)
		option_error
		;;
	esac;
done;

guessed_host=`$_srcdir/config.guess`
get_system_exe_extension $guessed_host
NATIVEEXEEXT=$_exeext

case $_host in
linupy)
	_host_os=linux
	_host_cpu=arm
	;;
motoezx)
	_host_os=linux
	_host_cpu=arm
	_host_alias=arm-linux-gnu
	;;
motomagx)
	_host_os=linux
	_host_cpu=arm
	_host_alias=arm-linux-gnueabi
	;;
arm-riscos)
	_host_os=riscos
	_host_cpu=arm
	;;
ppc-amigaos)
	_host_os=amigaos
	_host_cpu=ppc
	;;
gp2xwiz)
	_host_os=gp2xwiz-linux
	_host_cpu=arm
	_host_alias=arm-open2x-linux
	;;	
gp2x)
	_host_os=gp2x-linux
	_host_cpu=arm
	_host_alias=arm-open2x-linux
	;;
i586-mingw32msvc)
	_host_os=mingw32msvc
	_host_cpu=i586
	;;
iphone)
	_host_os=iphone
	_host_cpu=arm
	_host_alias=arm-apple-darwin9
	;;
wince)
	_host_os=wince
	_host_cpu=arm
	_host_alias=arm-wince-mingw32ce
	;;
neuros)
	_host_os=linux
	_host_cpu=arm
	;;
dreamcast)
	_host_os=dreamcast
	_host_cpu=sh
	_host_alias=sh-elf
	CXXFLAGS="$CXXFLAGS -ml -m4-single-only"
	LDFLAGS="$LDFLAGS -ml -m4-single-only"
	;;
wii)
	_host_os=wii
	_host_cpu=ppc
	_host_alias=powerpc-gekko
	;;
gamecube)
	_host_os=gamecube
	_host_cpu=ppc
	_host_alias=powerpc-gekko
	;;
nds)
	_host_os=nds
	_host_cpu=arm
	_host_alias=arm-eabi
	;;
psp)
	_host_os=psp
	_host_cpu=mipsallegrexel
	_host_alias=psp
	LDFLAGS="$LDFLAGS -L$PSPDEV/psp/sdk/lib -specs=$_srcdir/backends/platform/psp/psp.spec"
	;;
ps2)
	_host_os=ps2
	_host_cpu=mips64r5900el
	_host_alias=ee
	if test "$_debug_build" = auto; then
		# Disable debug mode by default. The resulting binaries are far too big in general,
		# and one has to disable multiple engines to make it usable.
		_debug_build=no
	fi

	if test "$_release_build" = auto; then
		# Enable release build by default.
		_release_build=yes
	fi
	;;
*)
	if test -n "$_host"; then
		guessed_host=`$_srcdir/config.sub $_host`
	fi
	_host_cpu=`echo $guessed_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
	_host_vendor=`echo $guessed_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
	_host_os=`echo $guessed_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
	;;
esac

if test -z "$_host_alias"; then
	_host_alias="$_host_cpu-$_host_os"
else
	# if _host_alias was set, default to the standard GNU tools
	_ranlib=$_host_alias-ranlib
	_strip=$_host_alias-strip
	_ar="$_host_alias-ar cru"
	_as="$_host_alias-as"
	_windres=$_host_alias-windres
fi

#
# Determine extra build flags for debug and/or release builds
#

if test "$_debug_build" != no; then
	# debug mode not explicitly disabled -> compile with -g
	CXXFLAGS="$CXXFLAGS -g"
fi

if test "$_release_build" = yes; then
	# Release mode enabled: enable optimizations. This also
	# makes it possible to use -Wuninitialized, so let's do that.
	CXXFLAGS="$CXXFLAGS -O2 -Wuninitialized"
fi


#
# Determine extension used for executables
#
get_system_exe_extension $_host_os 
HOSTEXEEXT=$_exeext

#
# Determine separator used for $PATH
#
case $_host_os in
os2-emx* )
	SEPARATOR=";"
	;;
* )
	SEPARATOR=":"
	;;
esac

#
# Platform specific sanity checks
#
case $_host_os in
wii | gamecube | nds)
	if test -z "$DEVKITPRO"; then
		echo "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to devkitPRO>"
		exit 1
	fi
	;;
psp)
	PSPSDK=$(psp-config --pspsdk-path)
	if test -z "$PSPSDK"; then
		echo "Please set the path to PSPSDK in your environment."
		exit 1
	fi
	;;
ps2)
	if test -z "$PS2SDK"; then
		echo "Please set PS2SDK in your environment. export PS2SDK=<path to ps2 sdk>"
		exit 1
	fi
	;;
*)
	;;
esac

#
# Determine the C++ compiler
#
echo_n "Looking for C++ compiler... "

# Check whether the given command is a working C++ compiler
test_compiler() {
	cat <<EOF >tmp_cxx_compiler.cpp
	class Foo { int a; };
	int main(int argc, char **argv) {
		Foo *a = new Foo(); delete a; return 0;
	}
EOF

	if test -n "$_host"; then
		# In cross-compiling mode, we cannot run the result
		eval "$1 $CXXFLAGS $LDFLAGS -o tmp_cxx_compiler$HOSTEXEEXT -c tmp_cxx_compiler.cpp" 2> /dev/null && rm -f tmp_cxx_compiler$HOSTEXEEXT tmp_cxx_compiler.cpp
	else
		eval "$1 $CXXFLAGS $LDFLAGS -o tmp_cxx_compiler$HOSTEXEEXT tmp_cxx_compiler.cpp" 2> /dev/null && eval "./tmp_cxx_compiler$HOSTEXEEXT 2> /dev/null" && rm -rf tmp_cxx_compiler$HOSTEXEEXT tmp_cxx_compiler.dSYM tmp_cxx_compiler.cpp
	fi
}

# Prepare a list of candidates for the C++ compiler
if test -n "$CXX" && test_compiler "$CXX"; then
	# Use the compiler specified in CXX
	echo $CXX
else
	if test -n "$_host"; then
		compilers="$_host_alias-g++ $_host_alias-c++ $_host-g++ $_host-c++"
	else
		compilers="g++ c++"
	fi

	# Iterate over all candidates, pick the first working one
	CXX=
	for compiler in $compilers; do
		if test_compiler $compiler; then
			CXX=$compiler
			echo $CXX
			break
		fi
	done
fi

if test -z "$CXX"; then
	echo "none found!"
	exit 1
fi

# By default, use the C++ compiler as linker
LD=$CXX

#
# Determine the compiler version
#
echocheck "compiler version"

have_gcc=no
cxx_version=`( $CXX -dumpversion ) 2>&1`
if test "$?" -gt 0; then
	# TODO: Big scary warning about unsupported Compilers
	cxx_version=`( $CXX -version ) 2>&1`
	if test "$?" -eq 0; then
		cxx_version="`echo "${cxx_version}" | sed -ne 's/^.*[^0-9]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/gp'`"
		if test -z "${cxx_version}"; then
			cxx_version="not found"
			cxx_verc_fail=yes
		fi
		echo non-gcc compiler version ${cxx_version}
	else
		cxx_version="not found"
		cxx_verc_fail=yes
		echo found non-gcc compiler version ${cxx_version}
	fi
else
	add_line_to_config_mk 'HAVE_GCC = 1'
	have_gcc=yes
fi

if test "$have_gcc" = yes; then
	case $cxx_version in
		2.95.[2-9]|2.95.[2-9][-.]*|3.[0-9]|3.[0-9].[0-9]|3.[0-9].[0-9][-.]*|4.[0-9]|4.[0-9].[0-9]|4.[0-9].[0-9][-.]*)
			_cxx_major=`echo $cxx_version | cut -d '.' -f 1`
			_cxx_minor=`echo $cxx_version | cut -d '.' -f 2`
			cxx_version="$cxx_version, ok"
			cxx_verc_fail=no
			;;
		# whacky beos version strings
		2.9-beos-991026*|2.9-beos-000224*)
			_cxx_major=2
			_cxx_minor=95
			cxx_version="$cxx_version, ok"
			cxx_verc_fail=no
			;;
		3_4)
			_cxx_major=3
			_cxx_minor=4
			;;
		'not found')
			cxx_verc_fail=yes
			;;
		*)
			cxx_version="$cxx_version, bad"
			cxx_verc_fail=yes
			;;
	esac
else
	case $_host_os in
		irix*)
			case $cxx_version in
				7.4.4*)
					# We just assume this is SGI MipsPRO
					_cxx_major=7
					_cxx_minor=4
					add_line_to_config_mk 'CXX_UPDATE_DEP_FLAG = -MDupdate "$(*D)/$(DEPDIR)/$(*F).d"'
					add_line_to_config_mk '-include Makedepend'
					;;
				*)
					cxx_version="$cxx_version, bad"
					cxx_verc_fail=yes
					;;
			esac
			;;
		*) 
			cxx_version="$cxx_version, bad"
			cxx_verc_fail=yes
			;;
	esac

fi

echo "$cxx_version"

if test "$cxx_verc_fail" = yes ; then
	echo
	echo "The version of your compiler is not supported at this time"
	echo "Please ensure you are using GCC >= 2.95"
	exit 1
fi

#
# Check for endianness
#
echo_n "Checking endianness... "
cat <<EOF >tmp_endianness_check.cpp
short ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
short ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
void _ascii() { char* s = (char*) ascii_mm; s = (char*) ascii_ii; }
short ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
short ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
void _ebcdic() { char* s = (char*) ebcdic_mm; s = (char*) ebcdic_ii; }
int main() { _ascii (); _ebcdic (); return 0; }
EOF
$CXX $CXXFLAGS -c -o tmp_endianness_check.o tmp_endianness_check.cpp
if strings tmp_endianness_check.o | grep BIGenDianSyS >/dev/null; then
	_endian=big
else
	_endian=little
fi
echo $_endian;
rm -f tmp_endianness_check.o tmp_endianness_check.cpp

#
# Determine a data type with the given length
#
find_type_with_size() {
	for datatype in int short char long unknown; do
	cat <<EOF >tmp_find_type_with_size.cpp
typedef $datatype ac__type_sizeof_;
int main() {
	static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) == $1)];
	test_array [0] = 0;
	return 0;
}
EOF
	if $CXX $CXXFLAGS -c -o tmp_find_type_with_size$HOSTEXEEXT tmp_find_type_with_size.cpp 2>/dev/null ; then
		break
	else
		if test "$datatype" = "unknown"; then
			echo "couldn't find data type with $1 bytes"
			exit 1
		fi
		continue
	fi
	done
	rm -f tmp_find_type_with_size$HOSTEXEEXT tmp_find_type_with_size.cpp
	echo $datatype
}

#
# Determine data type sizes
#
echo_n "Type with 1 byte... "
type_1_byte=`find_type_with_size 1`
TMP="$?"
echo "$type_1_byte"
test $TMP -eq 0 || exit 1	# check exit code of subshell

echo_n "Type with 2 bytes... "
type_2_byte=`find_type_with_size 2`
TMP="$?"
echo "$type_2_byte"
test $TMP -eq 0 || exit 1	# check exit code of subshell

echo_n "Type with 4 bytes... "
type_4_byte=`find_type_with_size 4`
TMP="$?"
echo "$type_4_byte"
test $TMP -eq 0 || exit 1	# check exit code of subshell

#
# Check whether we can use x86 asm routines
#
echo_n "Compiling for x86... "
case $_host_cpu in
	i386|i486|i586|i686)
		_have_x86=yes
		;;
	*)
		_have_x86=no
		;;
esac
echo "$_have_x86"

#
# Determine build settings
#
echo_n "Checking hosttype... "
echo $_host_os
case $_host_os in
	linux* | uclinux* | openbsd* | netbsd* | bsd* | sunos* | hpux*)
		DEFINES="$DEFINES -DUNIX"
		;;
	freebsd*)
		DEFINES="$DEFINES -DUNIX"
		LDFLAGS="$LDFLAGS -L/usr/local/lib"
		CXXFLAGS="$CXXFLAGS -I/usr/local/include"
		;;
	beos*)
		DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		# Needs -lbind -lsocket for the timidity MIDI driver
		LDFLAGS="-L/boot/home/config/lib"
		CFLAGS="-I/boot/home/config/include"
		CXXFLAGS="$CXXFLAGS -fhuge-objects"
		LIBS="$LIBS -lbind -lsocket"
		# FIXME: Please document why 'long' has to be used instead of int
		type_4_byte='long'
		;;
	haiku*)
		DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		# Needs -lnetwork for the timidity MIDI driver
		LIBS="$LIBS -lnetwork"
		CXXFLAGS="$CXXFLAGS -fhuge-objects"
		# FIXME: Please document why 'long' has to be used instead of int
		type_4_byte='long'
		;;
	solaris*)
		DEFINES="$DEFINES -DUNIX -DSOLARIS -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		# Needs -lbind -lsocket for the timidity MIDI driver
		LIBS="$LIBS -lnsl -lsocket"
		;;
	irix*)
		DEFINES="$DEFINES -DUNIX -DIRIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		LIBS="$LIBS -lmd -lfastm -lm"
		_ranlib=:
		;;
	darwin*)
		DEFINES="$DEFINES -DUNIX -DMACOSX"
		LIBS="$LIBS -framework AudioUnit -framework AudioToolbox -framework Carbon -framework CoreMIDI"
		;;
	mingw*)
		DEFINES="$DEFINES -DWIN32 -D__USE_MINGW_ANSI_STDIO=0"
		LIBS="$LIBS -lmingw32 -lwinmm"
		OBJS="$OBJS scummvmico.o"
		;;
	cygwin*)
		echo ERROR: Cygwin building is not supported by ScummVM anymore. Consider using MinGW.
		exit 1
		;;
	os2-emx*)
		DEFINES="$DEFINES -DUNIX"
		;;
	mint*)
		DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		;;
	amigaos*)
		CXXFLAGS="$CXXFLAGS -mcrt=newlib -mstrict-align -mcpu=750 -mtune=7400"
		LDFLAGS="$LDFLAGS -mcrt=newlib -use-dynld -Lsobjs:"
		# FIXME: Please document why 'long' has to be used instead of int
		type_4_byte='long'
		;;
	dreamcast)
		DEFINES="$DEFINES -D__DC__ -DNONSTANDARD_PORT"
		;;
	wii)
		CXXFLAGS="$CXXFLAGS -Os -mrvl -mcpu=750 -meabi -mhard-float"
		CXXFLAGS="$CXXFLAGS -ffunction-sections -fdata-sections -fmodulo-sched"
		CXXFLAGS="$CXXFLAGS -I$DEVKITPRO/libogc/include -I$DEVKITPRO/wii/include"
		LDFLAGS="$LDFLAGS -mrvl -mcpu=750 -L$DEVKITPRO/libogc/lib/wii -L$DEVKITPRO/wii/lib"
		;;
	gamecube)
		CXXFLAGS="$CXXFLAGS -Os -mogc -mcpu=750 -meabi -mhard-float"
		CXXFLAGS="$CXXFLAGS -ffunction-sections -fdata-sections -fmodulo-sched"
		CXXFLAGS="$CXXFLAGS -I$DEVKITPRO/libogc/include -I$DEVKITPRO/cube/include"
		LDFLAGS="$LDFLAGS -mogc -mcpu=750 -L$DEVKITPRO/libogc/lib/cube -L$DEVKITPRO/cube/lib"
		;;
	nds)
		# TODO nds
		DEFINES="$DEFINES -D__DS__ -DNDS -DARM9 -DARM -DNONSTANDARD_PORT"
		;;
	psp)
		CXXFLAGS="$CXXFLAGS -O3 -I$PSPSDK/include -D_PSP_FW_VERSION=150"
		;;
	ps2)
		# TODO ps2
		DEFINES="$DEFINES -D_EE -D__PLAYSTATION2__"
		;;
	wince)
		CXXFLAGS="$CXXFLAGS -O3 -march=armv4 -mtune=xscale -D_WIN32_WCE=300 -D__ARM__ -D_ARM_ -DUNICODE -DFPM_DEFAULT -DNONSTANDARD_PORT"
		CXXFLAGS="$CXXFLAGS -DWIN32 -Dcdecl= -D__cdecl__="
		;;
	# given this is a shell script assume some type of unix
	*)
		echo "WARNING: could not establish system type, assuming unix like"
		DEFINES="$DEFINES -DUNIX"
		;;
esac

if test -n "$_host"; then
	# Cross-compiling mode - add your target here if needed
	echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
	case "$_host" in
		linupy|arm-riscos)
			DEFINES="$DEFINES -DUNIX -DLINUPY"
			_need_memalign=yes
			;;
		arm-linux|arm*-linux-gnueabi|arm-*-linux|*-angstrom-linux)
			DEFINES="$DEFINES -DUNIX"
			_need_memalign=yes
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			;;
		motoezx)
			DEFINES="$DEFINES -DUNIX -DMOTOEZX"
			ASFLAGS="$ASFLAGS -mfpu=vfp"
			_need_memalign=yes
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			add_line_to_config_mk 'USE_ARM_GFX_ASM = 1'
			add_line_to_config_mk 'USE_ARM_COSTUME_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SCALER_ASM = 1'
			_backend="linuxmoto"
			_build_hq_scalers="no"
			_mt32emu="no"
			_vkeybd="yes"
			_port_mk="backends/platform/linuxmoto/linuxmoto.mk"
			;;
		motomagx)
			DEFINES="$DEFINES -DUNIX -DMOTOMAGX"
			ASFLAGS="$ASFLAGS -mfpu=vfp"
			_need_memalign=yes
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			add_line_to_config_mk 'USE_ARM_GFX_ASM = 1'
			add_line_to_config_mk 'USE_ARM_COSTUME_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SCALER_ASM = 1'
			_backend="linuxmoto"
			_build_hq_scalers="no"
			_mt32emu="no"
			_vkeybd="yes"
			_keymapper="yes"
			_port_mk="backends/platform/linuxmoto/linuxmoto.mk"
			;;
		bfin*)
			_need_memalign=yes
			;;
		*darwin*)
			_ranlib=$_host-ranlib
			_strip=$_host-strip
			;;
		gp2xwiz)
			DEFINES="$DEFINES -DUNIX -DGP2XWIZ -DNDEBUG"
			CXXFLAGS="$CXXFLAGS -mcpu=arm926ej-s -mtune=arm926ej-s"
			LDFLAGS="$LDFLAGS"
			_need_memalign=yes
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			add_line_to_config_mk 'USE_ARM_GFX_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SCALER_ASM = 1'
			add_line_to_config_mk 'USE_ARM_COSTUME_ASM = 1'
			_backend="gp2xwiz"
			_build_hq_scalers="no"
			_mt32emu="no"
			;;	
		gp2x)
			DEFINES="$DEFINES -DUNIX -DGP2X -DNDEBUG"
			CXXFLAGS="$CXXFLAGS -march=armv4t"
			ASFLAGS="$ASFLAGS -mfloat-abi=soft"
			LDFLAGS="$LDFLAGS -static"
			_need_memalign=yes
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			add_line_to_config_mk 'USE_ARM_GFX_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SCALER_ASM = 1'
			add_line_to_config_mk 'USE_ARM_COSTUME_ASM = 1'
			_backend="gp2x"
			_build_hq_scalers="no"
			_mt32emu="no"
			;;
		neuros)
			DEFINES="$DEFINES -DUNIX -DNEUROS"
			_need_memalign=yes
			_backend='null'
			_build_hq_scalers="no"
			_mt32emu="no"
			;;
		ppc-amigaos)
			_endian=big
			_need_memalign=yes
			# FIXME: Please document why 'long' has to be used instead of int
			type_4_byte='long'
			;;
		m68k-atari-mint)
			DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
			_endian=big
			_need_memalign=yes
			# FIXME: Please document why 'long' has to be used instead of int
			type_4_byte='long'
			_ranlib=m68k-atari-mint-ranlib
			_ar="m68k-atari-mint-ar cru"
			;;
		*mingw32*)
			_sdlconfig=$_host-sdl-config
			_windres=$_host-windres
			_ar="$_host-ar cru"
			_ranlib=$_host-ranlib
			;;
		iphone)
			DEFINES="$DEFINES -DIPHONE -DUNIX"
			_need_memalign=yes
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			_backend="iphone"
			_build_hq_scalers="no"
			;;
		wince)
			LDFLAGS="$LDFLAGS -Wl,-Map,scummvm.exe.map -Wl,--stack,65536"
			_need_memalign=yes
			add_line_to_config_mk 'USE_TREMOLO = 1'
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			add_line_to_config_mk 'USE_ARM_GFX_ASM = 1'
			add_line_to_config_mk 'USE_ARM_COSTUME_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SCALER_ASM = 1'
			_backend="wince"
			_mt32emu="no"
			_port_mk="backends/platform/wince/wince.mk"
			;;
		dreamcast)
			DEFINES="$DEFINES -DDISABLE_DEFAULT_SAVEFILEMANAGER -DDISABLE_TEXT_CONSOLE -DDISABLE_COMMAND_LINE"
			CXXFLAGS="$CXXFLAGS -O3 -funroll-loops -fschedule-insns2 -fomit-frame-pointer -fdelete-null-pointer-checks"
			_need_memalign=yes
			_backend="dc"
			_build_scalers="no"
			_build_hq_scalers="no"
			_mad="yes"
			_zlib="yes"
			add_line_to_config_mk 'include $(srcdir)/backends/platform/dc/dreamcast.mk'
			;;
		wii)
			_endian=big
			_need_memalign=yes
			_backend="wii"
			_build_scalers="no"
			_build_hq_scalers="no"
			_port_mk="backends/platform/wii/wii.mk"
			add_line_to_config_mk 'GAMECUBE = 0'
			add_line_to_config_h "#define DEBUG_WII_USBGECKO"
			add_line_to_config_h "/* #define DEBUG_WII_MEMSTATS */"
			add_line_to_config_h "/* #define DEBUG_WII_GDB */"
			add_line_to_config_h "#define USE_WII_DI"
			add_line_to_config_h "#define USE_WII_SMB"
			add_line_to_config_h "#define USE_WII_KBD"
			;;
		gamecube)
			_endian=big
			_need_memalign=yes
			_backend="wii"
			_build_scalers="no"
			_build_hq_scalers="no"
			_mt32emu="no"
			_port_mk="backends/platform/wii/wii.mk"
			add_line_to_config_mk 'GAMECUBE = 1'
			add_line_to_config_h '#define GAMECUBE'
			add_line_to_config_h "/* #define DEBUG_WII_USBGECKO */"
			add_line_to_config_h "/* #define DEBUG_WII_MEMSTATS */"
			add_line_to_config_h "/* #define DEBUG_WII_GDB */"
			;;
		nds)
			# TODO: complete this
			# TODO: Maybe rename nds -> ds (would be more consistent with other backends)
			DEFINES="$DEFINES -DDISABLE_FANCY_THEMES -DVECTOR_RENDERER_FORMAT=1555"
			DEFINES="$DEFINES -DDISABLE_DEFAULT_SAVEFILEMANAGER"
			DEFINES="$DEFINES -DREDUCE_MEMORY_USAGE"
			DEFINES="$DEFINES -DDISABLE_TEXT_CONSOLE -DDISABLE_COMMAND_LINE"
			_need_memalign=yes
			_backend="nds"
			_build_hq_scalers="no"
			_mt32emu="no"
			add_line_to_config_mk 'include $(srcdir)/backends/platform/ds/ds.mk'
			# TODO: Enable more ARM optimizations -- requires testing!
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			add_line_to_config_mk 'USE_ARM_SMUSH_ASM = 1'
			;;
		psp)
			_need_memalign=yes
			_backend="psp"
			_build_scalers="no"
			_build_hq_scalers="no"
			_mt32emu="no"
			_port_mk="backends/platform/psp/psp.mk"
			;;
		ps2)
			# TODO: complete this
			DEFINES="$DEFINES -DDISABLE_TEXT_CONSOLE -DDISABLE_COMMAND_LINE -DDISABLE_DOSBOX_OPL"
			_need_memalign=yes
			_backend="ps2"
			_build_scalers="no"
			_build_hq_scalers="no"
			_mt32emu="no"
			# HACK to enable mad & zlib (they are not properly detected due to linker issues).
			# The same does not currently for tremor, as the PS2 port the resulting library
			# libtremor, while our code later on expects it to be called libvorbisidec.
			# TODO: Enable tremor, e.g. by adding  -ltremor or by renaming the lib.
			_mad="yes"
			_zlib="yes"
			# HACK to fix compilation of C source files for now.
			add_line_to_config_mk 'CC = ee-gcc'
			# HACK to fix linking for now. It seems ee-g++ does not handle linking correctly.
			LD=ee-gcc

			if test "$_debug_build" = yes; then
				# TODO: Setup debug build properly
				DEFINES="$DEFINES -D__PS2_DEBUG__"
				#INCLUDES="$INCLUDES -I$(PS2GDB)/ee"
				#LDFLAGS="$LDFLAGS -L$(PS2GDB)/lib"
				LDFLAGS="$LDFLAGS -lps2gdbStub -lps2ip -ldebug"
			else
				# If not building for debug mode, strip binaries.
				CXXFLAGS="$CXXFLAGS -s"
			fi
			;;
		*)
			echo "WARNING: Unknown target, continuing with auto-detected values"
			;;
	esac

else
	#
	# Check whether memory alignment is required
	#
	echo_n "Alignment required... "
	case $_host_cpu in
		arm*)
			_need_memalign=yes
			;;
		alpha*)
			# Hardcode alignment requirements for Alpha processsors
			_need_memalign=yes
			;;
		sh*)
			# Hardcode alignment requirements for SH processsors.
			# While these can emulate unaligned memory access, this
			# emulation is rather slow.
			_need_memalign=yes
			;;
		mips*)
			# Hardcode alignment requirements for MIPS processsors.
			# While these can emulate unaligned memory access, this
			# emulation is rather slow.
			_need_memalign=yes
			;;
		*)
			# Try to auto-detect....
			cat > $TMPC << EOF
#include <stdlib.h>
#include <signal.h>
int main(int argc, char **argv) {
	unsigned char test[8] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88 };
	signal(SIGBUS, exit);
	signal(SIGABRT, exit);
	signal(SIGSEGV, exit);
	if (*((unsigned int *)(test + 1)) != 0x55443322 && *((unsigned int *)(test + 1)) != 0x22334455) {
		return 1;
	}
	return 0;
}
EOF
			_need_memalign=yes
			cc_check && $TMPO$HOSTEXEEXT && _need_memalign=no
			;;
	esac
	echo "$_need_memalign"
fi

#
# Enable 16bit support only for backends which support it
#
case $_backend in
	sdl | wii | dreamcast)
		if test "$_16bit" = auto ; then
			_16bit=yes
		else
			_16bit=no
		fi
		;;
	*)
		_16bit=no
		;;
esac


#
# Add the results of the above checks to config.h
#
case $_endian in
	big)
		add_line_to_config_h '/* #define SCUMM_LITTLE_ENDIAN */'
		add_line_to_config_h '#define SCUMM_BIG_ENDIAN'
		;;
	little)
		add_line_to_config_h '#define SCUMM_LITTLE_ENDIAN'
		add_line_to_config_h '/* #define SCUMM_BIG_ENDIAN */'
		;;
	*)
		exit 1
		;;
esac

add_to_config_h_if_yes $_have_x86 '#define HAVE_X86'

add_to_config_h_if_yes $_need_memalign '#define SCUMM_NEED_ALIGNMENT'

#
# Check whether to enable a verbose build
#
echo_n "Checking whether to have a verbose build... "
echo "$_verbose_build"
add_to_config_mk_if_yes "$_verbose_build" 'VERBOSE_BUILD = 1'

#
# Check whether plugin support is requested and possible
#
echo_n "Checking whether building plugins was requested... "
echo "$_dynamic_modules"
_mak_plugins=
_def_plugin="/* -> plugins disabled */"

if test "$_dynamic_modules" = yes ; then
	echo_n "Checking whether building plugins is supported... "
	case $_host_os in
	linux*)
_def_plugin='
#define PLUGIN_PREFIX	"lib"
#define PLUGIN_SUFFIX	".so"
'
_mak_plugins='
DYNAMIC_MODULES := 1
PLUGIN_PREFIX := lib
PLUGIN_SUFFIX := .so
PLUGIN_EXTRA_DEPS =
CXXFLAGS        += -DDYNAMIC_MODULES
CXXFLAGS        += -fpic
PLUGIN_LDFLAGS  += -shared
PRE_OBJS_FLAGS  := -Wl,-export-dynamic -Wl,-whole-archive
POST_OBJS_FLAGS := -Wl,-no-whole-archive
LIBS            += -ldl
'
		;;
	freebsd*)
_def_plugin='
#define PLUGIN_PREFIX	"lib"
#define PLUGIN_SUFFIX	".so"
'
_mak_plugins='
DYNAMIC_MODULES := 1
PLUGIN_PREFIX := lib
PLUGIN_SUFFIX := .so
PLUGIN_EXTRA_DEPS =
CXXFLAGS        += -DDYNAMIC_MODULES
CXXFLAGS        += -fpic
PLUGIN_LDFLAGS  += -shared
PRE_OBJS_FLAGS  := -Wl,-export-dynamic -Wl,-whole-archive
POST_OBJS_FLAGS := -Wl,-no-whole-archive
'
		;;
	darwin*)
_def_plugin='
#define PLUGIN_PREFIX	""
#define PLUGIN_SUFFIX	".plugin"
'
_mak_plugins='
DYNAMIC_MODULES := 1
PLUGIN_PREFIX :=
PLUGIN_SUFFIX := .plugin
PLUGIN_EXTRA_DEPS = $(EXECUTABLE)
CXXFLAGS        += -DDYNAMIC_MODULES
PLUGIN_LDFLAGS  += -bundle -bundle_loader $(EXECUTABLE) -exported_symbols_list "$(srcdir)/plugin.exp"
PRE_OBJS_FLAGS  := -all_load
POST_OBJS_FLAGS :=
LIBS            += -ldl
'
		;;
	*mingw32*)
_def_plugin='
#define PLUGIN_PREFIX	""
#define PLUGIN_SUFFIX	".dll"
'
_mak_plugins='
DYNAMIC_MODULES		:= 1
PLUGIN_PREFIX		:=
PLUGIN_SUFFIX		:= .dll
PLUGIN_EXTRA_DEPS	= $(EXECUTABLE)
CXXFLAGS			+= -DDYNAMIC_MODULES
PLUGIN_LDFLAGS		:= -Wl,--enable-auto-import -shared ./libscummvm.a
PRE_OBJS_FLAGS		:= -Wl,--whole-archive
POST_OBJS_FLAGS		:= -Wl,--export-all-symbols -Wl,--no-whole-archive -Wl,--out-implib,./libscummvm.a
'
		;;
	gp2xwiz*)
_def_plugin='
#define PLUGIN_PREFIX	""
#define PLUGIN_SUFFIX	".plugin"
'
_mak_plugins='
DYNAMIC_MODULES := 1
PLUGIN_PREFIX := 
PLUGIN_SUFFIX := .plugin
PLUGIN_EXTRA_DEPS = $(EXECUTABLE)
CXXFLAGS        += -DDYNAMIC_MODULES
CXXFLAGS        += -fpic
PLUGIN_LDFLAGS  += -shared
PRE_OBJS_FLAGS  := -Wl,-export-dynamic -Wl,-whole-archive
POST_OBJS_FLAGS := -Wl,-no-whole-archive
LIBS            += -ldl
'
		;;	
	dreamcast)
_def_plugin='
#define PLUGIN_PREFIX	""
#define PLUGIN_SUFFIX	".plg"
'
_mak_plugins='
DYNAMIC_MODULES		:= 1
PLUGIN_PREFIX		:=
PLUGIN_SUFFIX		:= .plg
PLUGIN_EXTRA_DEPS	= $(abspath $(srcdir)/backends/platform/dc/plugin.x $(srcdir)/backends/platform/dc/plugin.syms) $(EXECUTABLE)
CXXFLAGS			+= -DDYNAMIC_MODULES
PLUGIN_LDFLAGS		= -ml -m4-single-only -nostartfiles -Wl,-q,-T$(srcdir)/backends/platform/dc/plugin.x,--just-symbols,$(EXECUTABLE),--retain-symbols-file,$(srcdir)/backends/platform/dc/plugin.syms -L$(ronindir)/lib
PRE_OBJS_FLAGS		:= -Wl,--whole-archive
POST_OBJS_FLAGS		:= -Wl,--no-whole-archive
'
		;;
	psp)
_def_plugin='
#define PLUGIN_PREFIX	""
#define PLUGIN_SUFFIX	".plg"
'
_mak_plugins='
DYNAMIC_MODULES		:= 1
PLUGIN_PREFIX		:=
PLUGIN_SUFFIX		:= .plg
PLUGIN_EXTRA_DEPS	= $(EXECUTABLE)
CXXFLAGS		+= -DDYNAMIC_MODULES
LDFLAGS			+= -Wl,-T$(srcdir)/backends/platform/psp/main_prog.ld
PLUGIN_LDFLAGS		= -nostartfiles -Wl,-q,--just-symbols,$(EXECUTABLE),--retain-symbols-file,$(srcdir)/backends/platform/psp/plugin.syms,-T$(srcdir)/backends/platform/psp/plugin.ld -lstdc++ -lc -lm -Wl,-Map,mapfile.txt
PRE_OBJS_FLAGS		:= -Wl,--whole-archive
POST_OBJS_FLAGS		:= -Wl,--no-whole-archive
'
		;;
	*)
		_dynamic_modules=no
		_mak_plugins=
		_def_plugin=
		;;
	esac
	echo "$_dynamic_modules"
fi


#
# Check whether integrated MT-32 emulator support is requested
#
if test "$_mt32emu" = no ; then
	_def_mt32emu='#undef USE_MT32EMU'
else
	_def_mt32emu='#define USE_MT32EMU'
fi
add_to_config_mk_if_yes "$_mt32emu" 'USE_MT32EMU = 1'

#
# Check whether 16bit color support is requested
#
if test "$_16bit" = no ; then
	_def_16bit='#undef USE_RGB_COLOR'
else
	_def_16bit='#define USE_RGB_COLOR'
fi
add_to_config_mk_if_yes "$_16bit" 'USE_RGB_COLOR = 1'

#
# Check whether to enable the (hq) scalers
#
add_to_config_mk_if_no $_build_hq_scalers   'DISABLE_HQ_SCALERS = 1'
add_to_config_mk_if_no $_build_scalers      'DISABLE_SCALERS = 1'

#
# Check whether to compile the Indeo3 decoder
#
if test "$_indeo3" = auto ; then
	# Autodetect. Build if either the gob engine or plugins are enabled
	if test `get_engine_build gob` = yes || test "$_dynamic_modules" = yes ; then
		_indeo3="yes"
	else
		_indeo3="no"
	fi
fi
if test "$_indeo3" = no ; then
	_def_indeo3='#undef USE_INDEO3'
else
	_def_indeo3='#define USE_INDEO3'
fi
add_to_config_mk_if_yes "$_indeo3" 'USE_INDEO3 = 1'

#
# Check for math lib
#
cat > $TMPC << EOF
int main(void) { return 0; }
EOF
cc_check $LDFLAGS $CXXFLAGS -lm && LDFLAGS="$LDFLAGS -lm"

#
# Check for Ogg Vorbis
#
echocheck "Ogg Vorbis"
if test "$_vorbis" = auto ; then
	_vorbis=no
	cat > $TMPC << EOF
#include <vorbis/codec.h>
int main(void) { vorbis_packet_blocksize(0,0); return 0; }
EOF
	cc_check $LDFLAGS $CXXFLAGS $OGG_CFLAGS $OGG_LIBS $VORBIS_CFLAGS $VORBIS_LIBS \
		-lvorbisfile -lvorbis -logg && _vorbis=yes
fi
if test "$_vorbis" = yes ; then
	_def_vorbis='#define USE_VORBIS'
	LIBS="$LIBS $OGG_LIBS $VORBIS_LIBS -lvorbisfile -lvorbis -logg"
	INCLUDES="$INCLUDES $OGG_CFLAGS $VORBIS_CFLAGS"
else
	_def_vorbis='#undef USE_VORBIS'
fi
add_to_config_mk_if_yes "$_vorbis" 'USE_VORBIS = 1'
echo "$_vorbis"

#
# Check for Tremor
#
echocheck "Tremor"
if test "$_tremor" = auto ; then
	_tremor=no
	cat > $TMPC << EOF
#include <tremor/ivorbiscodec.h>
int main(void) { vorbis_info_init(0); return 0; }
EOF
	cc_check $LDFLAGS $CXXFLAGS $TREMOR_CFLAGS $TREMOR_LIBS -lvorbisidec && \
	_tremor=yes
fi
if test "$_tremor" = yes && test "$_vorbis" = no; then
	_def_tremor='#define USE_TREMOR'
	_def_vorbis='#define USE_VORBIS'
	LIBS="$LIBS $TREMOR_LIBS -lvorbisidec"
	INCLUDES="$INCLUDES $TREMOR_CFLAGS"
else
	if test "$_vorbis" = yes; then
		_tremor="no (Ogg Vorbis/Tremor support is mutually exclusive)"
	fi
	_def_tremor='#undef USE_TREMOR'
fi
add_to_config_mk_if_yes "$_tremor" 'USE_TREMOR = 1'
echo "$_tremor"

#
# Check for FLAC
#
echocheck "FLAC >= 1.0.1"
if test "$_flac" = auto ; then
	_flac=no
	cat > $TMPC << EOF
#include <FLAC/format.h>
int main(void) { return FLAC__STREAM_SYNC_LEN >> 30; /* guaranteed to be 0 */ }
EOF
	if test "$_vorbis" = yes ; then
		cc_check $LDFLAGS $CXXFLAGS $FLAC_CFLAGS $FLAC_LIBS $OGG_CFLAGS $OGG_LIBS \
			-lFLAC -logg && _flac=yes
	else
		cc_check $LDFLAGS $CXXFLAGS $FLAC_CFLAGS $FLAC_LIBS \
			-lFLAC && _flac=yes
	fi
fi
if test "$_flac" = yes ; then
	_def_flac='#define USE_FLAC'
	if test "$_vorbis" = yes ; then
		LIBS="$LIBS $FLAC_LIBS $OGG_LIBS -lFLAC -logg"
	else
		LIBS="$LIBS $FLAC_LIBS -lFLAC"
	fi
	INCLUDES="$INCLUDES $FLAC_CFLAGS"
else
	_def_flac='#undef USE_FLAC'
fi
add_to_config_mk_if_yes "$_flac" 'USE_FLAC = 1'
echo "$_flac"

#
# Check for MAD (MP3 library)
#
echocheck "MAD"
if test "$_mad" = auto ; then
	_mad=no
	cat > $TMPC << EOF
#include <mad.h>
int main(void) { return 0; }
EOF
	cc_check $LDFLAGS $CXXFLAGS $MAD_CFLAGS $MAD_LIBS -lmad && _mad=yes
fi
if test "$_mad" = yes ; then
	_def_mad='#define USE_MAD'
	LIBS="$LIBS $MAD_LIBS -lmad"
	INCLUDES="$INCLUDES $MAD_CFLAGS"
else
	_def_mad='#undef USE_MAD'
fi
add_to_config_mk_if_yes "$_mad" 'USE_MAD = 1'
echo "$_mad"

#
# Check for ALSA
#
echocheck "ALSA >= 0.9"
if test "$_alsa" = auto ; then
	_alsa=no
	cat > $TMPC << EOF
#include <alsa/asoundlib.h>
int main(void) { return (!(SND_LIB_MAJOR==0 && SND_LIB_MINOR==9)); }
EOF
	cc_check $LDFLAGS $CXXFLAGS $ALSA_CFLAGS $ALSA_LIBS -lasound && _alsa=yes
fi
if test "$_alsa" = yes ; then
	_def_alsa='#define USE_ALSA'
	LIBS="$LIBS $ALSA_LIBS -lasound"
	INCLUDES="$INCLUDES $ALSA_CFLAGS"
else
	_def_alsa='#undef USE_ALSA'
fi
echo "$_alsa"

#
# Check for ZLib
#
echocheck "zlib"
if test "$_zlib" = auto ; then
	_zlib=no
	cat > $TMPC << EOF
#include <string.h>
#include <zlib.h>
int main(void) { return strcmp(ZLIB_VERSION, zlibVersion()); }
EOF
	cc_check $LDFLAGS $CXXFLAGS $ZLIB_CFLAGS $ZLIB_LIBS -lz && _zlib=yes
fi
if test "$_zlib" = yes ; then
	_def_zlib='#define USE_ZLIB'
	LIBS="$LIBS $ZLIB_LIBS -lz"
	INCLUDES="$INCLUDES $ZLIB_CFLAGS"
else
	_def_zlib='#undef USE_ZLIB'
fi
add_to_config_mk_if_yes "$_zlib" 'USE_ZLIB = 1'
echo "$_zlib"

#
# Check for LibMPEG2
#
echocheck "libmpeg2 >= 0.3.2"
if test "$_mpeg2" = auto ; then
	_mpeg2=no
	cat > $TMPC << EOF
typedef signed $type_1_byte int8_t;
typedef signed $type_2_byte int16_t;
typedef signed $type_4_byte int32_t;

typedef unsigned $type_1_byte uint8_t;
typedef unsigned $type_2_byte uint16_t;
typedef unsigned $type_4_byte uint32_t;

#include <mpeg2dec/mpeg2.h>
int main(void) {
	/* mpeg2_state_t first appears in 0.4.0 */
	mpeg2_state_t state;

		#ifdef MPEG2_RELEASE
		if (MPEG2_RELEASE >= MPEG2_VERSION(0, 3, 2))
			return 0;
	#endif
	return 1;
}
EOF

	if test -n "$_host"; then
		# don't execute while cross compiling
		cc_check $LDFLAGS $CXXFLAGS $MPEG2_CFLAGS $MPEG2_LIBS -lmpeg2 && _mpeg2=yes
	else
		cc_check $LDFLAGS $CXXFLAGS $MPEG2_CFLAGS $MPEG2_LIBS -lmpeg2 && $TMPO$HOSTEXEEXT && _mpeg2=yes
	fi
fi
if test "$_mpeg2" = yes ; then
	_def_mpeg2='#define USE_MPEG2'
	INCLUDES="$INCLUDES $MPEG2_CFLAGS"
	LIBS="$LIBS $MPEG2_LIBS -lmpeg2"
else
	_def_mpeg2='#undef USE_MPEG2'
fi
add_to_config_mk_if_yes "$_mpeg2" 'USE_MPEG2 = 1'
echo "$_mpeg2"

#
# Check for libfluidsynth
#
echocheck "libfluidsynth"
if test "$_fluidsynth" = auto ; then
	_fluidsynth=no
	cat > $TMPC << EOF
#include <fluidsynth.h>
int main(void) { return 0; }
EOF
	cc_check $LDFLAGS $CXXFLAGS $FLUIDSYNTH_CFLAGS $FLUIDSYNTH_LIBS -lfluidsynth && _fluidsynth=yes
fi
if test "$_fluidsynth" = yes ; then
	_def_fluidsynth='#define USE_FLUIDSYNTH'
	case $_host_os in
		mingw*)
			LIBS="$LIBS $FLUIDSYNTH_LIBS -lfluidsynth -ldsound -lwinmm"
		;;
		*)
			LIBS="$LIBS $FLUIDSYNTH_LIBS -lfluidsynth"
		;;
	esac
	INCLUDES="$INCLUDES $FLUIDSYNTH_CFLAGS"
else
	_def_fluidsynth='#undef USE_FLUIDSYNTH'
fi
echo "$_fluidsynth"
rm -rf $TMPC $TMPO$HOSTEXEEXT $TMPO.dSYM

#
# Check for readline if text_console is enabled
#
echocheck "readline"
if test "$_text_console" = yes ; then
	_READLINE_LIBS="-lreadline"
	if test "$_readline" = auto ; then
		_readline=no
		cat > $TMPC << EOF
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>

int main(void) {
	char *x = readline("");
}
EOF
		cc_check $LDFLAGS $CXXFLAGS $READLINE_CFLAGS $READLINE_LIBS $_READLINE_LIBS && _readline=yes
		if test "$_readline" = no ; then
			_READLINE_LIBS="-lreadline -ltermcap"
			cc_check $LDFLAGS $CXXFLAGS $READLINE_CFLAGS $READLINE_LIBS $_READLINE_LIBS && _readline=yes
		fi
	fi
	echo "$_readline"
	rm -rf $TMPC $TMPO$HOSTEXEEXT $TMPO.dSYM
else
	_readline=no
	echo "skipping (text console disabled)"
fi

if test "$_readline" = yes ; then
	_def_readline='#define USE_READLINE'
	LIBS="$LIBS $READLINE_LIBS $_READLINE_LIBS"
	INCLUDES="$INCLUDES $READLINE_CFLAGS"
else
	_def_readline='#undef USE_READLINE'
fi

if test "$_text_console" = yes ; then
	_def_text_console='#define USE_TEXT_CONSOLE'
else
	_def_text_console='#undef USE_TEXT_CONSOLE'
fi

#
# Check for nasm
#
if test "$_have_x86" = yes ; then
	echocheck "nasm"
	if test "$_nasm" = no ; then
		echo "disabled"
	else
		IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=$SEPARATOR

		for path_dir in $_nasmpath; do
			if test -x "$path_dir/nasm$NATIVEEXEEXT" ; then
				NASM="$path_dir/nasm$NATIVEEXEEXT"
				echo $NASM
				break
			fi
		done

		IFS="$ac_save_ifs"

		if test x$NASM = x -o x$NASM = x'"$NASM"'; then
			echo "not found"
			_nasm=no
		else
			case $_host_os in
				os2-emx*)
					NASMFLAGS="-f aout"
				;;
				mingw*)
					NASMFLAGS="-f win32"
				;;
				darwin*)
					NASMFLAGS="-f macho"
				;;
				*)
					NASMFLAGS="-f elf"
				;;
			esac
			_nasm=yes
		fi
	fi
fi

add_to_config_h_if_yes $_nasm '#define USE_NASM'
add_to_config_mk_if_yes $_nasm 'HAVE_NASM = 1'

#
# Enable vkeybd / keymapper
#
if test "$_vkeybd" = yes ; then
	DEFINES="$DEFINES -DENABLE_VKEYBD"
fi
if test "$_keymapper" = yes ; then
	DEFINES="$DEFINES -DENABLE_KEYMAPPER"
fi

#
# Figure out installation directories
#
test -z "$_bindir" && _bindir="$_prefix/bin"
test -z "$_mandir" && _mandir="$_prefix/share/man"
test -z "$_datadir" && _datadir="$_prefix/share"
test -z "$_libdir" && _libdir="$_prefix/lib"

DEFINES="$DEFINES -DDATA_PATH=\\\"$_datadir/scummvm\\\""
DEFINES="$DEFINES -DPLUGIN_DIRECTORY=\\\"$_libdir/scummvm\\\""


echo_n "Backend... "
echo_n "$_backend"

if test "$_nasm" = yes ; then
	echo_n ", assembly routines"
fi

if test "$_16bit" = yes ; then
	echo_n ", 16bit color"
fi

if test "$_build_hq_scalers" = yes ; then
	echo_n ", HQ scalers"
fi

if test "$_mt32emu" = yes ; then
	echo_n ", MT-32 emu"
fi

if test "$_indeo3" = yes ; then
	echo_n ", Indeo3 decoder"
fi

if test "$_text_console" = yes ; then
	echo_n ", text console"
fi

if test "$_vkeybd" = yes ; then
	echo_n ", virtual keyboard"
fi

if test "$_keymapper" = yes ; then
	echo ", keymapper"
else
	echo
fi

#
# Backend related stuff
#
case $_backend in
	null)
		DEFINES="$DEFINES -DUSE_NULL_DRIVER"
		;;
	sdl)
		find_sdlconfig
		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
		DEFINES="$DEFINES -DSDL_BACKEND"
		;;
	linuxmoto)
		find_sdlconfig
		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
		DEFINES="$DEFINES -DSDL_BACKEND -DLINUXMOTO"
		;;
	gp2x)
		find_sdlconfig
		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
		LDFLAGS="$LDFLAGS -static"
		CXXFLAGS="$CXXFLAGS -march=armv4t"
		;;
	gp2xwiz)
		find_sdlconfig
		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
		LDFLAGS="$LDFLAGS"
		CXXFLAGS="$CXXFLAGS -mcpu=arm926ej-s -mtune=arm926ej-s"
		;;		
	iphone)
		OBJCFLAGS="$OBJCFLAGS --std=c99"
		LIBS="$LIBS -lobjc -framework UIKit -framework CoreGraphics -framework OpenGLES -framework QuartzCore -framework GraphicsServices -framework CoreFoundation -framework Foundation -framework AudioToolbox -framework CoreAudio"
		;;
	wince)
		INCLUDES="$INCLUDES "'-I$(srcdir) -I$(srcdir)/backends/platform/wince -I$(srcdir)/engines -I$(srcdir)/backends/platform/wince/missing/gcc -I$(srcdir)/backends/platform/wince/CEgui -I$(srcdir)/backends/platform/wince/CEkeys'
		LIBS="$LIBS -static -lSDL"
		;;
	dc)
		INCLUDES="$INCLUDES "'-I$(srcdir)/backends/platform/dc -isystem $(ronindir)/include'
		LDFLAGS="$LDFLAGS -Wl,-Ttext,0x8c010000 -nostartfiles "'$(ronindir)/lib/crt0.o -L$(ronindir)/lib'
		LIBS="$LIBS -lronin -lm"
		;;
	wii)
		DEFINES="$DEFINES -D__WII__ -DGEKKO"
		case $_host_os in
		gamecube)
			LIBS="$LIBS -lgxflux -lfat -logc -ldb"
			;;
		*)
			LIBS="$LIBS -lgxflux -ldi -ltinysmb -lfat -lwiiuse -lbte -logc -lwiikeyboard -ldb"
			;;
		esac
		;;
	nds)
		# TODO nds
		;;
	psp)
		DEFINES="$DEFINES -D__PSP__ -DDISABLE_TEXT_CONSOLE -DDISABLE_COMMAND_LINE -DDISABLE_DOSBOX_OPL"
		INCLUDES="$INCLUDES -I$PSPDEV/psp/include/SDL"
		LIBS="$LIBS -lSDL"
		;;
	ps2)
		# TODO ps2
		DEFINES="$DEFINES -D_EE -DFORCE_RTL"
		INCLUDES="$INCLUDES -I$PS2SDK/ee/include -I$PS2SDK/common/include -I$PS2SDK/ports/include"
		LDFLAGS="$LDFLAGS -mno-crt0 $PS2SDK/ee/startup/crt0.o -T $PS2SDK/ee/startup/linkfile"
		LDFLAGS="$LDFLAGS -L$PS2SDK/ee/lib -L$PS2SDK/ports/lib"
		LIBS="$LIBS -lmc -lpad -lmouse -lhdd -lpoweroff -lsjpcm -lm -lc -lfileXio -lkernel -lstdc++ "
		;;
	*)
		echo "support for $_backend backend not implemented in configure script yet"
		exit 1
		;;
esac
MODULES="$MODULES backends/platform/$_backend"

#
# Do CXXFLAGS now we know the compiler version
#
if test "$have_gcc" = yes ; then
	if test "$_cxx_major" -ge "3" ; then
		case $_host_os in
		# newlib-based system include files suppress non-C89 function 
		# declarations under __STRICT_ANSI__
		mingw* | dreamcast | wii | gamecube | psp | wince | amigaos*)
			CXXFLAGS="$CXXFLAGS -W -Wno-unused-parameter"
			;;
		*)
			CXXFLAGS="$CXXFLAGS -ansi -W -Wno-unused-parameter"
			;;
		esac
		add_line_to_config_mk 'HAVE_GCC3 = 1'
		add_line_to_config_mk 'CXX_UPDATE_DEP_FLAG = -Wp,-MMD,"$(*D)/$(DEPDIR)/$(*F).d",-MQ,"$@",-MP'
	fi;

	if test "$_cxx_major" -ge "4" && test "$_cxx_minor" -ge "3" ; then
		CXXFLAGS="$CXXFLAGS -Wno-empty-body"
	else
		CXXFLAGS="$CXXFLAGS -Wconversion"
	fi;
fi;

# Some platforms use certain GNU extensions in header files
case $_host_os in
wii | gamecube | psp)
	;;
*)
	CXXFLAGS="$CXXFLAGS -pedantic"
	;;
esac

#
# Engine selection
#
_engines_built_static=""
_engines_built_dynamic=""
_engines_skipped=""

echo "dynamic modules = $_dynamic_modules"
echo "plugins default = $_plugins_default"

for engine in $_engines; do
	if test "`get_engine_sub $engine`" = "no" ; then
		# It's a main engine
		if test `get_engine_build $engine` = no ; then
			isbuilt=no
		else
			# If dynamic plugins aren't supported, mark
			# all the engines as static
			if test $_dynamic_modules = no ; then
				set_var _engine_${engine}_build "static"
			else
				# If it wasn't explicitly marked as static or
				# dynamic, use the configured default
				if test `get_engine_build $engine` = yes ; then
					set_var _engine_${engine}_build "${_plugins_default}"
				fi
			fi

			# Prepare the defines
			if test `get_engine_build $engine` = dynamic ; then
				isbuilt=DYNAMIC_PLUGIN
			else
				set_var _engine_${engine}_build "static"
				isbuilt=STATIC_PLUGIN
			fi
		fi

		# Prepare the information to be shown
		prepare_engine_build_strings $engine
	else
		# It's a subengine, just say yes or no
		if test "`get_engine_build $engine`" = "no" ; then
			isbuilt=no
		else
			isbuilt=1
		fi
	fi

	# Save the settings
	defname="ENABLE_`echo $engine | tr '[a-z]' '[A-Z]'`"
	if test "$isbuilt" = "no" ; then
		add_line_to_config_mk "# $defname"
	else
		add_line_to_config_mk "$defname = $isbuilt"
	fi
done

#
# Show which engines ("frontends") are to be built
#
echo
if test -n "$_engines_built_static" ; then
	echo "Engines (builtin):"
	echo $_engines_built_static | sed 's/@/\
/g
s/#/    /g'
fi

if test -n "$_engines_built_dynamic" ; then
	echo "Engines (plugins):"
	echo $_engines_built_dynamic | sed 's/@/\
/g
s/#/    /g'
fi

if test -n "$_engines_skipped" ; then
	echo "Engines Skipped:"
	echo $_engines_skipped | sed 's/@/\
/g
s/#/    /g'
fi


echo
echo "Creating config.h"
cat > config.h << EOF
/* This file is automatically generated by configure */
/* DO NOT EDIT MANUALLY */

#ifndef CONFIG_H
#define CONFIG_H

$_config_h_data

/* Data types */
typedef unsigned $type_1_byte byte;
typedef unsigned int uint;
typedef unsigned $type_1_byte uint8;
typedef unsigned $type_2_byte uint16;
typedef unsigned $type_4_byte uint32;
typedef signed $type_1_byte int8;
typedef signed $type_2_byte int16;
typedef signed $type_4_byte int32;

/* Libs */
$_def_vorbis
$_def_tremor
$_def_flac
$_def_mad
$_def_alsa
$_def_zlib
$_def_mpeg2
$_def_fluidsynth
$_def_readline

/* Options */
$_def_text_console
$_def_mt32emu
$_def_indeo3
$_def_16bit

/* Plugin settings */
$_def_plugin

#endif /* CONFIG_H */
EOF

echo "Creating config.mk"
cat > config.mk << EOF
# -------- Generated by configure -----------

CXX := $CXX
CXXFLAGS := $CXXFLAGS
LD := $LD
LIBS += $LIBS
RANLIB := $_ranlib
STRIP := $_strip
AR := $_ar
AS := $_as
ASFLAGS := $ASFLAGS
WINDRES := $_windres
WINDRESFLAGS := $WINDRESFLAGS
WIN32PATH=$_win32path
AOS4PATH=$_aos4path
STATICLIBPATH=$_staticlibpath

BACKEND := $_backend
MODULES += $MODULES
MODULE_DIRS += $MODULE_DIRS
EXEEXT := $HOSTEXEEXT
NASM := $NASM
NASMFLAGS := $NASMFLAGS

PREFIX := $_prefix
BINDIR := $_bindir
MANDIR := $_mandir
DATADIR := $_datadir
LIBDIR := $_libdir

$_config_mk_data

INCLUDES += $INCLUDES
OBJS += $OBJS
DEFINES += $DEFINES
LDFLAGS += $LDFLAGS

$_mak_plugins

port_mk = $_port_mk

SAVED_CONFIGFLAGS  := $SAVED_CONFIGFLAGS
SAVED_LDFLAGS      := $SAVED_LDFLAGS
SAVED_CXX          := $SAVED_CXX
SAVED_CXXFLAGS     := $SAVED_CXXFLAGS
SAVED_CPPFLAGS     := $SAVED_CPPFLAGS
SAVED_ASFLAGS      := $SAVED_ASFLAGS
SAVED_WINDRESFLAGS := $SAVED_WINDRESFLAGS
EOF

#
# Create a custom Makefile when building outside the source tree
# TODO: Add a better check than just looking for 'Makefile'
#
if test ! -f Makefile ; then
echo "Creating Makefile"

cat > Makefile << EOF
# -------- Generated by configure -----------
srcdir = $_srcdir
vpath %.h \$(srcdir)
vpath %.cpp \$(srcdir)
vpath %.c \$(srcdir)
vpath %.m \$(srcdir)
vpath %.asm \$(srcdir)
vpath %.s \$(srcdir)
vpath %.S \$(srcdir)
include \$(srcdir)/Makefile
EOF

fi