--- mstools/posix/h/errno.h	2018/08/09 18:22:18	1.1.1.1
+++ mstools/posix/h/errno.h	2018/08/09 18:24:35	1.1.1.2
@@ -11,17 +11,6 @@ Abstract:
    This module contains the implementation defined values for the POSIX error
    number as described in section 2.5 of IEEE P1003.1/Draft 13.
 
-Author:
-
-   Mark Lucovsky     21-Feb-1989
-
-Revision History:
-
-   Sam Patton       23-July-1991    added sockets specific error codes
-   Sam Patton       26-July-1991    added #define of _POSIX_SOURCE
-                                    if _SOCKETS_SOURCE is #defined
-   Mike Massa       09-Sept-1991    merged into sys\errno.h					
-
 --*/
 
 #ifndef _ERRNO_
@@ -29,6 +18,14 @@ Revision History:
 
 #include <sys/errno.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern int errno;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ERRNO_ */