diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 0d82d9bab..cf8051ce4 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+2007-02-14  Corinna Vinschen  <corinna@vinschen.de>
+
+	* libc/include/sys/features.h: Add _POSIX_MESSAGE_PASSING for
+	Cygwin.
+
 2007-02-08  Corinna Vinschen  <corinna@vinschen.de>
 
 	* libc/include/sys/features.h: Add _POSIX_SHARED_MEMORY_OBJECTS for
diff --git a/newlib/libc/include/sys/features.h b/newlib/libc/include/sys/features.h
index adad114bd..a088d82b1 100644
--- a/newlib/libc/include/sys/features.h
+++ b/newlib/libc/include/sys/features.h
@@ -98,7 +98,7 @@ extern "C" {
 /* #define _POSIX_MEMLOCK			    -1 */
 #define _POSIX_MEMLOCK_RANGE			200112L
 #define _POSIX_MEMORY_PROTECTION		200112L
-/* #define _POSIX_MESSAGE_PASSING		    -1 */
+#define _POSIX_MESSAGE_PASSING			200112L
 /* #define _POSIX_MONOTONIC_CLOCK		    -1 */
 #define _POSIX_NO_TRUNC				     1
 /* #define _POSIX_PRIORITIZED_IO		    -1 */