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CONFIGURE: Add detection for 64-bitness and define int64 when applicable

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This commit is contained in:
Eugene Sandulenko 2011-12-24 10:59:42 +00:00
parent d66bfb131c
commit 0024228100
1 changed files with 51 additions and 0 deletions
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51
configure vendored
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@ -1705,6 +1705,35 @@ EOF
echo $datatype
}
#
# Check whether the system is 32-bit
#
pointer_is_32bit() {
cat > tmp_pointer_is_32bit.cpp << EOF
int main() {
void *p;
int v = (int)p;
return 0;
}
EOF
$CXX $CXXFLAGS -c -o $TMPO.o tmp_pointer_is_32bit.cpp 2>/dev/null
status=$?
cc_check_clean tmp_pointer_is_32bit.cpp
return $status
}
echo_n "Checking 64-bitness... "
pointer_is_32bit
if test $? -eq 0; then
type_ptr=int32
echo "no"
add_line_to_config_h "/* #define SCUMM_64BITS */"
else
type_ptr=int64
echo "yes"
add_line_to_config_h "#define SCUMM_64BITS"
fi
#
# Determine data type sizes
#
@ -1726,6 +1755,17 @@ TMPR="$?"
echo "$type_4_byte"
test $TMPR -eq 0 || exit 1 # check exit code of subshell
echo_n "Type with 8 bytes... "
type_8_byte=`find_type_with_size 8`
TMPR="$?"
echo "$type_8_byte"
if test $TMPR -eq 0; then
_def_64bit_type_signed="typedef signed $type_8_byte int64;"
_def_64bit_type_unsigned="typedef unsigned $type_8_byte uint64;"
fi
# force cleanup after check for 8 bytes type
cc_check_clean tmp_find_type_with_size.cpp
#
# Check whether memory alignment is required
#
@ -3853,6 +3893,17 @@ typedef signed $type_1_byte int8;
typedef signed $type_2_byte int16;
typedef signed $type_4_byte int32;
/* 64-bit stuff */
$_def_64bit_type_signed
#if defined(__APPLE__) && !defined(__ppc__)
#ifndef _UINT64
#define _UINT64
$_def_64bit_type_unsigned
#endif
#else
$_def_64bit_type_unsigned
#endif
#endif /* CONFIG_H */
EOF