clib: correct data type mismatches

Author: jmalak

bld/clib/startup/a/cstrtw32.asm

@@ -315,7 +315,8 @@ donecpy:
         mov     _winmajor,al            ; ...
         mov     _winminor,ah            ; ...
         xchg    al,ah                   ; ...
-        mov     _winver,ax              ; ...
+        movzx   eax,ax                  ; ...
+        mov     _winver,eax             ; ...
         movzx   eax,hThisInstance
         push    eax
         mov     edi,offset filename

bld/clib/startup/c/wnmjptr.c

@@ -2,6 +2,7 @@
 *
 *                            Open Watcom Project
 *
+* Copyright (c) 2025      The Open Watcom Contributors. All Rights Reserved.
 *    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
 *
 *  ========================================================================
@@ -34,7 +35,11 @@
 #include "rtdata.h"
 
 
+#ifdef __WINDOWS__
+_WCRTLINK unsigned char (*__get_winmajor_ptr( void ))
+#else
 _WCRTLINK unsigned int (*__get_winmajor_ptr( void ))
+#endif
 {
     return( &_RWD_winmajor );
 }

bld/clib/startup/c/wnmnptr.c

@@ -2,6 +2,7 @@
 *
 *                            Open Watcom Project
 *
+* Copyright (c) 2025      The Open Watcom Contributors. All Rights Reserved.
 *    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
 *
 *  ========================================================================
@@ -34,7 +35,11 @@
 #include "rtdata.h"
 
 
+#ifdef __WINDOWS__
+_WCRTLINK unsigned char (*__get_winminor_ptr( void ))
+#else
 _WCRTLINK unsigned int (*__get_winminor_ptr( void ))
+#endif
 {
     return( &_RWD_winminor );
 }