constify

[exim.git] / src / src / functions.h

diff --git a/src/src/functions.h b/src/src/functions.h
index 0602789597788209395d5d53a7b548429ce6d88b..de03bb8d01d2049a858492cafd8b21f4e76d2852 100644 (file)
--- a/src/src/functions.h
+++ b/src/src/functions.h
@@ -186,7 +186,7 @@ extern void    delivery_re_exec(int);
 
 extern BOOL    directory_make(const uschar *, const uschar *, int, BOOL);
 #ifndef DISABLE_DKIM
-extern uschar *dkim_exim_query_dns_txt(uschar *);
+extern uschar *dkim_exim_query_dns_txt(const uschar *);
 extern void    dkim_exim_sign_init(void);
 
 extern BOOL    dkim_transport_write_message(transport_ctx *,