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|
#!/bin/sh
#
# THIS SCRIPT DOESN'T DO ANYTHING YET!
#
# Some things this script could/should do when finished
#
# * detect the compiler name (g++/c++/...)
# * detect whether its a GNU compiler or not (for compiler settings)
# * detect the host platform and base settings on this:
# - #defines like -DUNIX and -DMACOSX
# - required libs like -lmingw32
# * command line options to...
# - override the host settings (for cross compiles
# - select the desired backend (sdl, x11, ...)
# - whether to dump scripts (sets -DDUMP_SCRIPTS)
# - whether mad should be used (--enabled-mad) -> set LIBS/DEFINES
# * detect whether the chose backend is available (e.g. call sdl-config)
# * detect whether mad/ALSA/... are available
# * detect endianess and write that into config.h
# * detect size of data types and write that into config.h
# * check whether compiler supports "bool" and if not,
# define HAVE_NO_BOOL and add code to config.h to implement "bool"
# * ....
#
# 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
eval "$1 -o tmp_cxx_compiler tmp_cxx_compiler.cpp 2> /dev/null" && eval "./tmp_cxx_compiler 2> /dev/null" && rm tmp_cxx_compiler tmp_cxx_compiler.cpp
}
#
# Determine a data type with the given length
#
find_type_with_size ()
{
cat <<EOF >tmp_find_type_with_size.cpp
#include <stdio.h>
int main(int argc, char **argv)
{
int size = argv[1][0] - '0';
if (size == sizeof(int))
printf("int\n");
else if (size == sizeof(short))
printf("short\n");
else if (size == sizeof(char))
printf("char\n");
else if (size == sizeof(long))
printf("long\n");
else {
printf("unknown\n");
return 1;
}
return 0;
}
EOF
if eval "$CXX -o tmp_find_type_with_size tmp_find_type_with_size.cpp"; then
datatype=`./tmp_find_type_with_size $1`
if test "$datatype" = "unknown"; then
echo "couldn't find data type with $1 bytes"
exit 1
fi
fi
rm tmp_find_type_with_size tmp_find_type_with_size.cpp
echo $datatype
}
#
# Greet user
#
echo "Running ScummVM configure..."
echo "/* This file is automatically generated by configure */" > config.h
echo "/* DO NOT EDIT MANUALLY */" >> config.h
echo "" >> config.h
echo "#ifndef CONFIG_H" >> config.h
echo "#define CONFIG_H" >> config.h
echo "" >> config.h
#
# Check any parameters we received
#
# TOOD: allow for multi value params, e.g. --target=dreamcast or --backend=morphos
#
for x in $@; do
case x$x in
x--with-alsa)
echo "#define USE_ALSA" >> config.h
LIBS="$LIBS -lasound"
;;
x--with-mad)
echo "#define COMPRESSED_SOUND_FILE" >> config.h
LIBS="$LIBS -lmad"
;;
x--enable-dump-scripts)
echo "#define DUMP_SCRIPTS" >> config.h
;;
esac;
done;
#
# Determine the C++ compiler
#
printf "Looking for C++ compiler... "
compilers="$CXX g++ c++"
CXX=
for compiler in $compilers; do
if test_compiler $compiler; then
CXX=$compiler
echo $CXX
break
fi
done
if test -z $CXX; then
echo "none found!"
exit 1
fi
#
# Determine hosttype
#
# TODO - also add an command line option to override this?!?
# TODO - recognize more systems, e.g. *BSD
printf "Checking hosttype... "
hosttype=`uname -s`
echo $hosttype
case $hosttype in
Linux)
echo "#define UNIX" >> config.h
;;
Darwin)
echo "#define UNIX" >> config.h
echo "#define MACOSX" >> config.h
;;
esac
#
# Check for endianess
#
printf "Checking endianess... "
cat <<EOF >tmp_endianess_check.cpp
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
unsigned int data = 0x01234567;
char *ptr = (char *)&data;
if (ptr[0] == 0x01 && ptr[1] == 0x23 && ptr[2] == 0x45 && ptr[3] == 0x67)
printf("big\n");
else if (ptr[3] == 0x01 && ptr[2] == 0x23 && ptr[1] == 0x45 && ptr[0] == 0x67)
printf("little\n");
else
printf("unknown\n");
return 0;
}
EOF
$CXX -o tmp_endianess_check tmp_endianess_check.cpp
endianess=`./tmp_endianess_check`
echo $endianess;
case $endianess in
big)
echo "#define SCUMM_BIG_ENDIAN" >> config.h
;;
little)
echo "#define SCUMM_LITTLE_ENDIAN" >> config.h
;;
*)
exit 1
;;
esac
rm tmp_endianess_check tmp_endianess_check.cpp
#
# Determine data type sizes
# TODO: proper error checking
#
printf "Type with 1 byte... "
type_1_byte=`find_type_with_size 1`
echo "$type_1_byte"
printf "Type with 2 bytes... "
type_2_byte=`find_type_with_size 2`
echo "$type_2_byte"
printf "Type with 4 bytes... "
type_4_byte=`find_type_with_size 4`
echo "$type_4_byte"
echo >> config.h
echo "/* Data types */" >> config.h
echo "typedef unsigned $type_1_byte byte;" >> config.h
echo "typedef unsigned int uint;" >> config.h
echo "typedef unsigned $type_1_byte uint8;" >> config.h
echo "typedef unsigned $type_2_byte uint16;" >> config.h
echo "typedef unsigned $type_4_byte uint32;" >> config.h
echo "typedef signed $type_1_byte int8;" >> config.h
echo "typedef signed $type_2_byte int16;" >> config.h
echo "typedef signed $type_4_byte int32;" >> config.h
#
# End of config.h
#
echo "" >> config.h
echo "#endif /* CONFIG_H */" >> config.h
|
