#define OS_HEADER(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).h)
#define OS_CSOURCE(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).c)
#define OS_HEADER(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).h)
#define OS_CSOURCE(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).c)