--- rxvt-unicode/src/feature.h	2005/02/10 12:25:34	1.23
+++ rxvt-unicode/src/feature.h	2005/12/20 20:58:31	1.25
@@ -120,7 +120,7 @@
  * Define to remove support for XCopyArea () support.  XCopyArea () is useful
  * for scrolling on non-local X displays
  */
-#define NO_SLOW_LINK_SUPPORT
+#undef NO_SLOW_LINK_SUPPORT
 
 /*
  * Printer pipe which will be used for emulation of attached vt100 printer
@@ -409,5 +409,11 @@
  */
 /* #define WAIT_FOR_WM */
 
+/*
+ * The duration of the visual bell flash in µs. The default of 20ms
+ * corresponds to the delay given in the terminfo flash code.
+ */
+#define VISUAL_BELL_DURATION 20000
+
 #endif