From ef88241d8ec726f7d48b061f355b088fc4bb4bf1 Mon Sep 17 00:00:00 2001
From: bernard <bernard.xiong@rt-thread.com>
Date: Tue, 6 Jun 2017 23:34:33 +0800
Subject: [PATCH] Fix compiling warning for Win32.

---
 components/drivers/include/drivers/serial.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/components/drivers/include/drivers/serial.h b/components/drivers/include/drivers/serial.h
index ae6ad5c1fe..2abf925854 100644
--- a/components/drivers/include/drivers/serial.h
+++ b/components/drivers/include/drivers/serial.h
@@ -54,9 +54,13 @@
 #define STOP_BITS_3                     2
 #define STOP_BITS_4                     3
 
+#ifdef _WIN32
+#include <windows.h>
+#else
 #define PARITY_NONE                     0
 #define PARITY_ODD                      1
 #define PARITY_EVEN                     2
+#endif
 
 #define BIT_ORDER_LSB                   0
 #define BIT_ORDER_MSB                   1