--- src/scim_types.h.in.orig	Tue Jan 20 13:36:13 2009
+++ src/scim_types.h.in	Tue Jan 20 13:36:41 2009
@@ -45,7 +45,7 @@ typedef @UINT16@ uint16;
 typedef @UINT32@ uint32;
 typedef @UINT64@ uint64;
 
-#ifdef __STDC_ISO_10646__
+#if defined(__STDC_ISO_10646__) || defined(__OpenBSD__)
     typedef wchar_t ucs4_t;
 #else
     typedef uint32 ucs4_t;
