--- rxvt-unicode/src/rxvtlib.h.in	2005/02/04 11:41:23	1.43
+++ rxvt-unicode/src/rxvtlib.h.in	2005/02/13 09:05:10	1.45
@@ -22,7 +22,13 @@
 #include <sys/wait.h>
 #include <sys/stat.h>
 
-#include <cwchar>
+#if HAVE_CWCHAR
+# include <cwchar>
+#elif HAVE_WCHAR_H
+# include <wchar.h>
+#else
+// stdlib.h might provide it
+#endif
 
 #include "ptytty.h"