petern/OpenTTD
1
0
Fork 0
forked from mirror/OpenTTD
Code Pull Requests Activity

(svn r3264) -Codechange: [OSX] OSX targets will now always use the preprocessor to determine endianess

Browse Source 
this means that ENDIAN_FORCE is obsolite since it's always overwritten with PREPROCESSOR
	Since the preprocessor should never be able to pick wrong, it's easier this way
	specially when compiling universal binaries as they got both endianess
This commit is contained in:
bjarni
2005-12-06 14:35:10 +00:00
parent a3d142ed57
commit 686da2f4e1
2 changed files with 24 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
endian_check.c
View File

@@ -12,12 +12,14 @@
int main (int argc, char *argv[]) {
unsigned char EndianTest[2] = { 1, 0 };
int force_BE = 0, force_LE = 0;
int force_BE = 0, force_LE = 0, force_PREPROCESSOR = 0;
if (argc > 1 && strcmp(argv[1], "BE") == 0)
force_BE = 1;
if (argc > 1 && strcmp(argv[1], "LE") == 0)
force_LE = 1;
if (argc > 1 && strcmp(argv[1], "PREPROCESSOR") == 0)
force_PREPROCESSOR = 1;
printf("#ifndef ENDIAN_H\n#define ENDIAN_H\n");
@@ -27,20 +29,21 @@ int main (int argc, char *argv[]) {
if (force_BE == 1) {
printf("#define TTD_BIG_ENDIAN\n");
} else {
#ifdef __APPLE__
// adding support for universal binaries on OSX
// Universal binaries supports both PPC and x86
printf("#ifdef __BIG_ENDIAN__\n");
printf("#define TTD_BIG_ENDIAN\n");
printf("#else\n");
printf("#define TTD_LITTLE_ENDIAN\n");
printf("#endif\n");
#else
if ( *(short *) EndianTest == 1 )
printf("#define TTD_LITTLE_ENDIAN\n");
else
if (force_PREPROCESSOR == 1) {
// adding support for universal binaries on OSX
// Universal binaries supports both PPC and x86
// If a compiler for OSX gets this setting, it will always pick the correct endian and no test is needed
printf("#ifdef __BIG_ENDIAN__\n");
printf("#define TTD_BIG_ENDIAN\n");
#endif
printf("#else\n");
printf("#define TTD_LITTLE_ENDIAN\n");
printf("#endif\n");
} else {
if ( *(short *) EndianTest == 1 )
printf("#define TTD_LITTLE_ENDIAN\n");
else
printf("#define TTD_BIG_ENDIAN\n");
}
}
}
printf("#endif\n");