(svn r8131) -Fix (r8125): g++ warning: 'invalid access to non-static data member ‘<class>::<member>’ of NULL object'. It is weird, but renaming the 'offsetof' macro helped.

src/oldloader.cpp

@@ -372,7 +372,7 @@ static void FixOldVehicles(void)
  *  - OCL_CHUNK: load an other proc to load a part of the savegame, 'amount' times
  *  - OCL_ASSERT: to check if we are really at the place we expect to be.. because old savegames are too binary to be sure ;)
  */
-#define OCL_SVAR(type, base, offset)         { type,          1, NULL,    (uint)offsetof(base, offset), NULL }
+#define OCL_SVAR(type, base, offset)         { type,          1, NULL,    (uint)cpp_offsetof(base, offset), NULL }
 #define OCL_VAR(type, amount, pointer)       { type,     amount, pointer, 0,                      NULL }
 #define OCL_END()                                   { OC_END,        0, NULL,    0,                      NULL }
 #define OCL_NULL(amount)                            { OC_NULL,  amount, NULL,    0,                      NULL }