Index: src/lib/libast/features/wchar
--- src/lib/libast/features/wchar.orig
+++ src/lib/libast/features/wchar
@@ -8,6 +8,9 @@ cat{
 	#if defined(__FreeBSD__) || defined(__DragonFly__)
 	#define _STDFILE_DECLARED 1
 	#endif
+	#if defined(__OpenBSD__)
+	#define _STDFILES_DECLARED 1
+	#endif
 }end
 
 lib	mbstowcs,wctomb,wcrtomb,wcslen,wcstombs,wcwidth stdlib.h stdio.h wchar.h