[Fix] openmpt123: We need to verify DJGPP crt0 flags before modifying…

… them. See r21742.

git-svn-id: https://source.openmpt.org/svn/openmpt/branches/OpenMPT-1.31@21743 56274372-70c3-4bfc-bfc3-4c3a0b034d27

openmpt123/openmpt123.cpp

@@ -2203,8 +2203,8 @@ static int wmain( int wargc, wchar_t * wargv [] ) {
 static int main( int argc, char * argv [] ) {
 #endif
 	#if MPT_OS_DJGPP
-		_crt0_startup_flags &= ~_CRT0_FLAG_LOCK_MEMORY;  /* disable automatic locking for all further memory allocations */
 		assert(mpt::platform::libc().is_ok());
+		_crt0_startup_flags &= ~_CRT0_FLAG_LOCK_MEMORY;  /* disable automatic locking for all further memory allocations */
 	#endif /* MPT_OS_DJGPP */
 	std::vector<mpt::ustring> args;
 	#if MPT_OS_WINDOWS && defined(UNICODE)