5 files changed, 15 insertions, 4 deletions
diff --git a/include/libc/libc_errno.h b/include/libc/libc_errno.h
index 7b6f302091..b4f4410595 100644
--- a/include/libc/libc_errno.h
+++ b/include/libc/libc_errno.h
@@ -27,7 +27,7 @@
 
 #include <rtconfig.h>
 
-#ifdef RT_USING_NEWLIB
+#if defined(RT_USING_NEWLIB) || defined(_WIN32)
 /* use errno.h file in newlib */
 #include <errno.h>
 #else
diff --git a/include/libc/libc_fcntl.h b/include/libc/libc_fcntl.h
index 68b714b855..fd61b44273 100644
--- a/include/libc/libc_fcntl.h
+++ b/include/libc/libc_fcntl.h
@@ -4,13 +4,18 @@
 #ifndef LIBC_FCNTL_H__
 #define LIBC_FCNTL_H__
 
-#ifdef RT_USING_NEWLIB
+#if defined(RT_USING_NEWLIB) || defined(_WIN32)
 #include <fcntl.h>
 
 #ifndef O_NONBLOCK
 #define O_NONBLOCK    04000
 #endif
 
+#if defined(_WIN32)
+#define O_DIRECTORY 0200000
+#define O_ACCMODE   (_O_RDONLY | _O_WRONLY | _O_RDWR)
+#endif
+
 #else
 #define O_RDONLY         00
 #define O_WRONLY         01
diff --git a/include/libc/libc_fdset.h b/include/libc/libc_fdset.h
index 613b0e9539..386c040206 100644
--- a/include/libc/libc_fdset.h
+++ b/include/libc/libc_fdset.h
@@ -27,7 +27,7 @@
 
 #include <rtconfig.h>
 
-#ifdef RT_USING_NEWLIB
+#if defined(RT_USING_NEWLIB) || defined(_WIN32)
 #include <sys/types.h>
 #else
 
diff --git a/include/libc/libc_ioctl.h b/include/libc/libc_ioctl.h
index 49191a8548..b61866a524 100644
--- a/include/libc/libc_ioctl.h
+++ b/include/libc/libc_ioctl.h
@@ -30,6 +30,7 @@
 #define _IOC_WRITE 1U
 #define _IOC_READ  2U
 
+#ifndef _WIN32
 #define _IO(a,b)    _IOC(_IOC_NONE,(a),(b),0)
 #define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
 #define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
@@ -39,6 +40,7 @@
 #define FIONBIO     _IOW('f', 126, int) /* set/clear non-blocking i/o */
 #define FIONWRITE   _IOR('f', 121, int) /* get # bytes outstanding
                          * in send queue. */
+#endif
 
 #define TCGETS		0x5401
 #define TCSETS		0x5402
@@ -98,7 +100,11 @@
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
+
+#ifndef _WIN32
 #define FIOASYNC	0x5452
+#endif
+
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
 #define TIOCSERSWILD	0x5455
diff --git a/include/rtlibc.h b/include/rtlibc.h
index da126e67e6..db5236edb1 100644
--- a/include/rtlibc.h
+++ b/include/rtlibc.h
@@ -40,7 +40,7 @@ typedef signed long off_t;
 typedef int mode_t;
 #endif
 
-#if defined(__MINGW32__)
+#if defined(__MINGW32__) || defined(_WIN32)
 typedef signed long off_t;
 typedef int mode_t;
 #endif