diff --git a/src/include/lwip/sys.h b/src/include/lwip/sys.h index 4bfdb13d..88866592 100644 --- a/src/include/lwip/sys.h +++ b/src/include/lwip/sys.h @@ -50,6 +50,9 @@ extern "C" { typedef u8_t sys_sem_t; typedef u8_t sys_mutex_t; typedef u8_t sys_mbox_t; +#if SYS_LIGHTWEIGHT_PROT +typedef u32_t sys_prot_t; +#endif #define sys_sem_new(s, c) ERR_OK #define sys_sem_signal(s)