compat
#define compat(n, name) .sy_narg = n, .sy_call = (sy_call_t *)__CONCAT(o, name)
#define compat(n, name) .sy_narg = 0, .sy_call = (sy_call_t *)nosys
#define compat(n, name) .sy_narg = n, .sy_call = (sy_call_t *)__CONCAT(o, name)
#define compat(n, name) .sy_narg = 0, .sy_call = (sy_call_t *)nosys