Index: tools/smidump.c
--- tools/smidump.c.orig
+++ tools/smidump.c
@@ -252,11 +252,10 @@ static void usage()
 	    printf_state=_set_printf_count_output(1);
     #endif
 #endif
-	    fprintf(stderr, "  --%s-%s%s%s%n",
+	    n = fprintf(stderr, "  --%s-%s%s%s",
 		    driver->name, driver->opt[i].name,
 		    value ? "=" : "",
-		    value ? value : "",
-		    &n);
+		    value ? value : "");
 #ifdef _MSC_VER
     #if _MSC_VER >= 1400
 	    (void)_set_printf_count_output(printf_state);