scummvm/configure

#!/bin/sh
#
# configure -- custom configure script for Residual.
#
# Residual is the legal property of its developers, whose names
# are too numerous to list here. Please refer to the AUTHORS
# 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.
#
# $URL$
# $Id$

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

# 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

#
# Default settings
#
# Default lib behaviour yes/no/auto
_vorbis=auto
_tremor=auto
_flac=auto
_mad=auto
# Default platform settings
_backend=sdl
_endian=unknown
_need_memalign=no
_have_x86=no
# Default commands
_ranlib=ranlib
_strip=strip
_ar="ar cru"
_windres=windres
_win32path="C:/residual"
_aos4path="Games:Residual"
_staticlibpath=/sw
_sdlconfig=sdl-config
_sdlpath="$PATH"
_prefix=/usr/local
# For cross compiling
_host=""
_host_cpu=""
_host_vendor=""
_host_os=""
_host_alias=""

_srcdir=`dirname $0`

# 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=./residual-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"
	rm -rf "$TMPO.dSYM"
	( $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*)
		_exeext=".exe"
		;;
	arm-riscos)
		_exeext=",ff8"
		;;
	gp2x-linux)
		_exeext=".gp2x"
		;;
	dreamcast | wii | gamecube | psp)
		_exeext=".elf"
		;;
	*)
		_exeext=""
		;;
	esac
}

#
# Generic options functions
#

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

# 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}"
}

#
# Greet user
#
echo "Running Residual 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
		cat << EOF

Usage: $0 [OPTIONS]...

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

Installation directories:
  --prefix=DIR           use this prefix for installing Residual [/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
                                          iphone for Apple iPhone
                                          psp for PlayStation Portable

Optional Features:
  --disable-debug          disable building with debugging symbols
  --enable-Werror          treat warnings as errors
  --enable-profiling       enable building with gprof profile information
  --enable-release         set flags to build release binary

Optional Libraries:
  --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)

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

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>

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

DEBFLAGS="-g"

for ac_option in $@; do
	case "$ac_option" in
	--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         ;;
	--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"
		;;
	--backend=*)
		_backend=`echo $ac_option | cut -d '=' -f 2`
		;;
	--enable-debug)
		# debug is enabled by default
		;;
	--disable-debug)
		DEBFLAGS=""
		;;
	--enable-Werror)
		CXXFLAGS="$CXXFLAGS -Werror"
		;;
	--enable-release)
		DEBFLAGS="-O2 -Wuninitialized"
		;;
	--enable-profiling)
		CXXFLAGS="$CXXFLAGS -pg"
		LDFLAGS="$LDFLAGS -pg"
		;;
	--with-sdl-prefix=*)
		arg=`echo $ac_option | cut -d '=' -f 2`
		_sdlpath="$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-*)
		engine_enable `echo $ac_option | cut -d '-' -f 4-`
		;;
	--disable-*)
		engine_disable `echo $ac_option | cut -d '-' -f 4-`
		;;
	*)
		option_error
		;;
	esac;
done;

CXXFLAGS="$CXXFLAGS $DEBFLAGS"

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

case $_host in
linupy)
	_host_os=linux
	_host_cpu=arm
	;;
arm-riscos)
	_host_os=riscos
	_host_cpu=arm
	;;
ppc-amigaos)
	_host_os=amigaos
	_host_cpu=ppc
	;;
gp2x)
	_host_os=gp2x-linux
	_host_cpu=arm
	_host_alias=arm-open2x-linux
	;;
i586-mingw32msvc)
	_host_os=mingw32msvc
	_host_cpu=i586
	;;
iphone)
	_host_os=iphone
	_host_cpu=arm
	_host_alias=arm-apple-darwin9
	;;
neuros)
	_host_os=linux
	_host_cpu=arm
	;;
dreamcast)
	_host_os=dreamcast
	_host_cpu=sh
	_host_alias=sh-elf
	CXXFLAGS="$CXXFLAGS -ml -m4-single-only"
	LDFLAGS="$LDFLAGS -ml -m4-single-only"
	;;
wii)
	_host_os=wii
	_host_cpu=ppc
	_host_alias=powerpc-gekko
	;;
psp)
	_host_os=psp
	_host_cpu=mipsallegrexel
	_host_alias=psp
	LDFLAGS="$LDFLAGS -L$PSPDEV/psp/sdk/lib -specs=$_srcdir/engine/backend/platform/psp/psp.spec"
	;;
gamecube)
	_host_os=gamecube
	_host_cpu=ppc
	_host_alias=powerpc-gekko
	;;
*)
	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"
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 $_host_os in
wii | gamecube)
	if test -z "$DEVKITPRO"; then
		echo "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to devkitPRO>"
		exit 1
	fi
	;;
psp)
	if test -z "$PSPDEV"; then
		echo "Please set PSPDEV in your environment. export PSPDEV=<path to psp toolchain>"
		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 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$HOSTEXEEXT 2> /dev/null" && rm -f tmp_cxx_compiler$HOSTEXEEXT 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

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

cxx_version=`( $CXX -dumpversion ) 2>&1`
if test "$?" -gt 0; then
	cxx_version="not found"
fi

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="$cxx_version, ok"
		cxx_verc_fail=no
		;;
	3_4)
		_cxx_major=3
		_mxx_minor=4
		;;
	'not found')
		cxx_verc_fail=yes
		;;
	*)
		cxx_version="$cxx_version, bad"
		cxx_verc_fail=yes
		;;
esac

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 'long 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 a size of pointer type
#
find_pointer_size() {
	cat <<EOF >tmp_find_pointer_size.cpp
int main() {
	void *p;
	int v = (int)p;
	return 0;
}
EOF
	$CXX $CXXFLAGS -c -o tmp_find_pointer_size$HOSTEXEEXT tmp_find_pointer_size.cpp 2>/dev/null
	status=$?
	rm -f tmp_find_pointer_size$HOSTEXEEXT tmp_find_pointer_size.cpp
	return $status
}

#
# 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

echo_n "Type with 8 bytes... "
type_8_byte=`find_type_with_size 8`
TMP="$?"
echo "$type_8_byte"
if test $TMP -eq 0; then
	_def_64bit_type_signed="typedef signed $type_8_byte int64;"
	_def_64bit_type_unsigned="typedef unsigned $type_8_byte uint64;"
fi

echo_n "Target 64 bits... "
find_pointer_size
if test $? -eq 0; then
	echo "no"
	add_line_to_config_h "/* #define TARGET_64BITS */"
else
	echo "yes"
	add_line_to_config_h "#define TARGET_64BITS"
fi

#
# Check whether we can use x86 asm routines
#
echo_n "Compiling for x86... "
case $_host_cpu in
	i386|i486|i586|i686|x86_64)
		_have_x86=yes
		;;
	*)
		_have_x86=no
		;;
esac
echo "$_have_x86"

#
# Determine build settings
#
echo_n "Checking hosttype... "
echo $_host_os
case $_host_os in
	linux* | uclinux* | openbsd* | freebsd* | netbsd* | bsd* | sunos* | hpux*)
		DEFINES="$DEFINES -DUNIX"
		LIBS="$LIBS -lGL -lGLU -L/usr/X11/lib"
		;;
	beos*)
		DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		LDFLAGS="-L/boot/home/config/lib"
		CFLAGS="-I/boot/home/config/include"
		CXXFLAGS="$CXXFLAGS -fhuge-objects"
		type_1_byte='char'
		type_2_byte='short'
		type_4_byte='long'
		;;
	haiku*)
		DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		CXXFLAGS="$CXXFLAGS -fhuge-objects"
		type_1_byte='char'
		type_2_byte='short'
		type_4_byte='long'
		;;
	solaris*)
		DEFINES="$DEFINES -DUNIX -DSOLARIS -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		LIBS="$LIBS -lnsl"
		;;
	irix*)
		DEFINES="$DEFINES -DUNIX -DIRIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		LIBS="$LIBS -lmd"
		_ranlib=:
		;;
	darwin*)
		DEFINES="$DEFINES -DUNIX -DMACOSX"
		LIBS="$LIBS -framework QuickTime -framework AudioUnit -framework AudioToolbox -framework Carbon -lGL -lGLU -L/usr/X11/lib \
		-dylib_file /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib"
		;;
	mingw*)
		DEFINES="$DEFINES -DWIN32 -D__USE_MINGW_ANSI_STDIO=0"
		LIBS="$LIBS -lmingw32 -lopengl32 -lglu32"
		OBJS="$OBJS residualico.o"
		;;
	os2-emx*)
		DEFINES="$DEFINES -DUNIX"
		;;
	mint*)
		DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
		;;
	amigaos*)
		DEFINES="$DEFINES -DMINIGL"
		CXXFLAGS="$CXXFLAGS -mcrt=newlib -mstrict-align -mcpu=750 -mtune=7400"
		LDFLAGS="$LDFLAGS -mcrt=newlib -use-dynld -Lsobjs:"
		LIBS="$LIBS -lGL -lGLU"
		type_1_byte='char'
		type_2_byte='short'
		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$DEVKITPRO/libogc/include"
		LDFLAGS="$LDFLAGS -mrvl -mcpu=750 -L$DEVKITPRO/libogc/lib/wii"
		;;
	gamecube)
		CXXFLAGS="$CXXFLAGS -Os -mogc -mcpu=750 -meabi -mhard-float"
		CXXFLAGS="$CXXFLAGS -ffunction-sections -fdata-sections -fmodulo-sched"
		CXXFLAGS="$CXXFLAGS -I$DEVKITPRO/libogc/include"
		LDFLAGS="$LDFLAGS -mogc -mcpu=750 -L$DEVKITPRO/libogc/lib/cube"
		;;
	psp)
		CXXFLAGS="$CXXFLAGS -O2 -G0 -I$PSPDEV/psp/sdk/include -D_PSP_FW_VERSION=150"
		;;
	# given this is a shell script assume some type of unix
	*)
		echo "WARNING: could not establish system type, assuming unix like"
		DEFINES="$DEFINES -DUNIX"
		;;
esac

if test -n "$_host"; then
	# Cross-compiling mode - add your target here if needed
	case "$_host" in
		linupy|arm-riscos)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DUNIX"
			_endian=little
			_need_memalign=yes
			add_line_to_config_h "#define LINUPY"
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			;;
		arm-linux|arm*-linux-gnueabi|arm-*-linux|*-angstrom-linux)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DUNIX -DUSE_ARM_SOUND_ASM"
			#not true for all ARM systems, but the interesting ones are all LE. Most (if not all) BE arm devices don't have a screen
			_endian=little
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			;;
		bfin*)
			_need_memalign=yes
			;;
		*darwin*)
			_ranlib=$_host-ranlib
			_strip=$_host-strip
			;;
		gp2x)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DUNIX -DGP2X -DUSE_ARM_SOUND_ASM"
			CXXFLAGS="$CXXFLAGS -march=armv4t"
			LDFLAGS="$LDFLAGS -static"
			_endian=little
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_ar="$_host_alias-ar cru"
			_ranlib=$_host_alias-ranlib
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			_backend="gp2x"
			;;
		neuros)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DUNIX"
			_endian=little
			_need_memalign=yes
			add_line_to_config_h "#define NEUROS"
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_backend='null'
			;;
		ppc-amigaos)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			_endian=big
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='long'
			;;
		m68k-atari-mint)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DUNIX -DSYSTEM_NOT_SUPPORTING_D_TYPE"
			_endian=big
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='long'
			_ranlib=m68k-atari-mint-ranlib
			_ar="m68k-atari-mint-ar cru"
			;;
		*mingw32*)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			_endian=little
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_sdlconfig=$_host-sdl-config
			_windres=$_host-windres
			_ar="$_host-ar cru"
			_ranlib=$_host-ranlib
			_strip=$_host-strip
			;;
		iphone)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DIPHONE -DUNIX -DUSE_ARM_SOUND_ASM"
			_endian=little
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			add_line_to_config_mk 'USE_ARM_SOUND_ASM = 1'
			_backend="iphone"
			_ar="$_host_alias-ar cru"
			_ranlib=$_host_alias-ranlib
			_strip=$_host_alias-strip
			;;
		dreamcast)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			DEFINES="$DEFINES -DDISABLE_DEFAULT_SAVEFILEMANAGER -DDISABLE_TEXT_CONSOLE -DDISABLE_COMMAND_LINE"
			CXXFLAGS="$CXXFLAGS -O3 -Wno-multichar -funroll-loops -fschedule-insns2 -fomit-frame-pointer -fdelete-null-pointer-checks -fno-exceptions"
			_endian=little
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_backend="dc"
			_build_scalers="no"
			_ar="$_host_alias-ar cru"
			_ranlib=$_host_alias-ranlib
			add_line_to_config_mk 'include $(srcdir)/backends/platform/dc/dreamcast.mk'
			;;
		wii)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			_endian=big
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_ar="$_host_alias-ar cru"
			_ranlib=$_host_alias-ranlib
			_backend="wii"
			add_line_to_config_mk 'include $(srcdir)/backends/platform/wii/wii.mk'
			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_KBD"
			;;
		gamecube)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			_endian=big
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_ar="$_host_alias-ar cru"
			_ranlib=$_host_alias-ranlib
			_backend="wii"
			add_line_to_config_mk 'include $(srcdir)/backends/platform/wii/wii.mk'
			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 */"
			;;
		psp)
			echo "Cross-compiling to $_host, forcing endianness, alignment and type sizes"
			_endian=little
			_need_memalign=yes
			type_1_byte='char'
			type_2_byte='short'
			type_4_byte='int'
			_ar="$_host_alias-ar cru"
			_ranlib=$_host_alias-ranlib
			_backend="psp"
			;;
		*)
			echo "Continuing with auto-detected values ... if you have problems, please add your target to configure."
			;;
	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

#
# Add the results of the above checks to config.h
#
case $_endian in
	big)
		add_line_to_config_h '/* #define SYSTEM_LITTLE_ENDIAN */'
		add_line_to_config_h '#define SYSTEM_BIG_ENDIAN'
		;;
	little)
		add_line_to_config_h '#define SYSTEM_LITTLE_ENDIAN'
		add_line_to_config_h '/* #define SYSTEM_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 SYSTEM_NEED_ALIGNMENT'

#
# 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 ZLib
#
echocheck "zlib"
_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

if test "$_zlib" = yes ; then
	_def_zlib='#define USE_ZLIB'
	LIBS="$LIBS $ZLIB_LIBS -lz"
	INCLUDES="$INCLUDES $ZLIB_CFLAGS"
else
	echo
	echo "zlib library support required"
	exit 1
fi
add_to_config_mk_if_yes "$_zlib" 'USE_ZLIB = 1'
echo "$_zlib"


rm -rf $TMPC $TMPO$EXEEXT $TMPO.dSYM

#
# 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/residual\\\""


#
# Backend related stuff
#
case $_backend in
	sdl)
		find_sdlconfig
		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
		DEFINES="$DEFINES -DSDL_BACKEND"
		;;
	gp2x)
		find_sdlconfig
		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
		LDFLAGS="$LDFLAGS -static"
		CXXFLAGS="$CXXFLAGS -march=armv4t"
		;;
	iphone)
		OBJCFLAGS="$OBJCFLAGS --std=c99"
		LIBS="$LIBS -lobjc -framework UIKit -framework CoreGraphics -framework CoreSurface -framework QuartzCore -framework GraphicsServices -framework CoreFoundation -framework Foundation -framework AudioToolbox -framework CoreAudio"
		;;
	dc)
		INCLUDES="$INCLUDES "'-I$(srcdir)/engine/backend/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 $_host_os in
		gamecube)
			DEFINES="$DEFINES -DGAMECUBE"
			LIBS="$LIBS -lfat -logc -ldb"
			;;
		*)
			LIBS="$LIBS -ldi -lfat -lwiiuse -lbte -logc -lwiikeyboard -ldb"
			;;
		esac
		;;
	psp)
		DEFINES="$DEFINES -D__PSP__ -DDISABLE_TEXT_CONSOLE -DDISABLE_COMMAND_LINE"
		INCLUDES="$INCLUDES -I$PSPDEV/psp/include/SDL"
		LIBS="$LIBS -lSDL"
		;;
	*)
		echo "support for $_backend backend not implemented in configure script yet"
		exit 1
		;;
esac
MODULES="$MODULES engine/backend/platform/$_backend"

#
# Do CXXFLAGS now we know the compiler version
#
if test "$_cxx_major" -ge "3" ; then
	case $_host_os in
	# newlib-based system include files suppress non-C89 function 
	# declarations under __STRICT_ANSI__
	mingw* | dreamcast | wii | gamecube | psp | amigaos*)
		CXXFLAGS="$CXXFLAGS -W -Wno-unused-parameter"
		;;
	*)
		CXXFLAGS="$CXXFLAGS -ansi -W -Wno-unused-parameter"
		;;
	esac
	add_line_to_config_mk 'HAVE_GCC3 = 1'
fi;

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

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

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;
$_def_64bit_type_signed
typedef signed $type_1_byte int8;
typedef signed $type_2_byte int16;
typedef signed $type_4_byte int32;
$_def_64bit_type_unsigned

/* Libs */
$_def_vorbis
$_def_tremor
$_def_flac
$_def_mad
$_def_zlib

#endif /* CONFIG_H */
EOF

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

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

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

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

$_config_mk_data

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

$_mak_plugins

SAVED_CONFIGFLAGS := $SAVED_CONFIGFLAGS
SAVED_LDFLAGS     := $SAVED_LDFLAGS
SAVED_CXX         := $SAVED_CXX
SAVED_CXXFLAGS    := $SAVED_CXXFLAGS
SAVED_CPPFLAGS    := $SAVED_CPPFLAGS
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