--- mstools/h/ios.h	2018/08/09 18:21:04	1.1
+++ mstools/h/ios.h	2018/08/09 18:22:58	1.1.1.2
@@ -1,7 +1,7 @@
 /***
 *ios.h - definitions/declarations for the ios class.
 *
-*	Copyright (c) 1990-1992, Microsoft Corporation.  All rights reserved.
+*	Copyright (c) 1990-1993, Microsoft Corporation.  All rights reserved.
 *
 *Purpose:
 *	This file defines the classes, values, macros, and functions
@@ -15,10 +15,13 @@
 
 
 #ifdef _MT
-#include <oscalls.h>	// critical section declarations
+#include <windows.h>   // critical section declarations
+
+extern "C" {
 void _mtlockinit(PRTL_CRITICAL_SECTION);
 void _mtlock(PRTL_CRITICAL_SECTION);
 void _mtunlock(PRTL_CRITICAL_SECTION);
+}
 #endif
 
 #ifndef NULL
@@ -29,12 +32,17 @@ void _mtunlock(PRTL_CRITICAL_SECTION);
 #define EOF	(-1)
 #endif
 
+// C4505: "unreferenced local function has been removed"
+#pragma warning(disable:4505) // disable C4505 warning
+// #pragma warning(default:4505)	// use this to reenable, if desired
+
+// C4103 : "used #pragma pack to change alignment"
+#pragma warning(disable:4103)	// disable C4103 warning
+// #pragma warning(default:4103)	// use this to reenable, if desired
+
 // Force word packing to avoid possible -Zp override
 #pragma pack(4)
 
-#pragma warning(disable:4505)		// disable unwanted /W4 warning
-// #pragma warning(default:4505)	// use this to reenable, if necessary
-
 class streambuf;
 class ostream;