diff --git a/databases/iodbc/patches/patch-iodbcinst_unicode_c b/databases/iodbc/patches/patch-iodbcinst_unicode_c
new file mode 100644
index 00000000000..4d531b27bdc
--- /dev/null
+++ b/databases/iodbc/patches/patch-iodbcinst_unicode_c
@@ -0,0 +1,12 @@
+$OpenBSD: patch-iodbcinst_unicode_c,v 1.1 2011/06/06 10:55:17 naddy Exp $
+--- iodbcinst/unicode.c.orig	Sun Jun  5 23:35:43 2011
++++ iodbcinst/unicode.c	Sun Jun  5 23:36:27 2011
+@@ -230,7 +230,7 @@ towlower (wchar_t wc)
+ 
+ 
+ #if !defined(HAVE_WCSNCASECMP)
+-int wcsncasecmp (wchar_t* s1, wchar_t* s2, size_t n)
++int wcsncasecmp (const wchar_t* s1, const wchar_t* s2, size_t n)
+ {
+   wchar_t c1, c2;
+   
diff --git a/databases/iodbc/patches/patch-iodbcinst_unicode_h b/databases/iodbc/patches/patch-iodbcinst_unicode_h
new file mode 100644
index 00000000000..0b950fd8db1
--- /dev/null
+++ b/databases/iodbc/patches/patch-iodbcinst_unicode_h
@@ -0,0 +1,12 @@
+$OpenBSD: patch-iodbcinst_unicode_h,v 1.3 2011/06/06 10:55:17 naddy Exp $
+--- iodbcinst/unicode.h.orig	Sun Jun  5 23:35:04 2011
++++ iodbcinst/unicode.h	Sun Jun  5 23:36:04 2011
+@@ -151,7 +151,7 @@ wchar_t* wcscat(wchar_t *dest, const wchar_t *src);
+ int wcscmp (const wchar_t* s1, const wchar_t* s2);
+ #endif
+ #if !defined(HAVE_WCSNCASECMP)
+-int wcsncasecmp (wchar_t* s1, wchar_t* s2, size_t n);
++int wcsncasecmp (const wchar_t* s1, const wchar_t* s2, size_t n);
+ #endif
+ 
+ #endif /* _UNICODE_H */