diff --git a/lwlib/ChangeLog b/lwlib/ChangeLog
index a5e88ec5e08..ae38c07eb40 100644
--- a/lwlib/ChangeLog
+++ b/lwlib/ChangeLog
@@ -1,3 +1,8 @@
+2002-11-21  Dave Love  <fx@gnu.org>
+
+	* lwlib-Xaw.c [PROTOTYPES]: Provide ISO C arglists for functions
+	with Boolean args.
+
 2002-11-20  Dave Love  <fx@gnu.org>
 
 	* lwlib.c: Remove obsolete USE_OLIT code.
diff --git a/lwlib/lwlib-Xaw.c b/lwlib/lwlib-Xaw.c
index b93ee0beb36..058899a9277 100644
--- a/lwlib/lwlib-Xaw.c
+++ b/lwlib/lwlib-Xaw.c
@@ -119,11 +119,16 @@ xaw_update_scrollbar (instance, widget, val)
 #endif
 
 void
+#ifdef PROTOTYPES
+xaw_update_one_widget (widget_instance *instance, Widget widget,
+		       widget_value *val, Boolean deep_p)
+#else
 xaw_update_one_widget (instance, widget, val, deep_p)
      widget_instance *instance;
      Widget widget;
      widget_value *val;
      Boolean deep_p;
+#endif
 {
 #if 0
   if (XtIsSubclass (widget, scrollbarWidgetClass))
@@ -198,9 +203,13 @@ xaw_popup_menu (widget, event)
 }
 
 void
+#ifdef PROTOTYPES
+xaw_pop_instance (widget_instance *instance, Boolean up)
+#else
 xaw_pop_instance (instance, up)
      widget_instance *instance;
      Boolean up;
+#endif
 {
   Widget widget = instance->widget;