--- rxvt-unicode/src/ptytty_wrapper.C	2011/05/30 23:18:08	1.2
+++ rxvt-unicode/src/ptytty_wrapper.C	2011/12/20 13:47:10	1.4
@@ -1,7 +1,9 @@
 #include <config.h>
 #include "rxvt.h"
 
-#define PTYTTY_NO_LIBCPP
+#define PTYTTY_NO_LIBCPP 1
+
+#define PTYTTY_REENTRANT 0
 
 #define PTYTTY_FATAL rxvt_fatal
 #define PTYTTY_WARN  rxvt_warn