$OpenBSD: patch-prog_checker_string_hpp,v 1.1 2017/04/17 21:19:22 sthen Exp $

fix with clang; from https://svnweb.freebsd.org/ports?view=revision&revision=343830

should be obsoleted by upstream patch targetted for 0.60.7
https://github.com/GNUAspell/aspell/commit/502e8f99a9c7c63344f5acdcb96ddecd30ee32f1

--- prog/checker_string.hpp.orig	Sat Jul  2 22:09:09 2011
+++ prog/checker_string.hpp	Mon Apr 17 22:06:23 2017
@@ -6,6 +6,7 @@
 
 #include <stdio.h>
 
+#include "errors.hpp"
 #include "aspell.h"
 
 #include "vector.hpp"
