X-Git-Url: https://vcs.fsf.org/?p=exim.git;a=blobdiff_plain;f=src%2Fsrc%2Ffunctions.h;h=de03bb8d01d2049a858492cafd8b21f4e76d2852;hp=0602789597788209395d5d53a7b548429ce6d88b;hb=fc2ba7b9fae5992dd76f721f283714a6d2ea137d;hpb=de2e5b3dc657ad28e291f43b0850ab42e0012313

diff --git a/src/src/functions.h b/src/src/functions.h
index 060278959..de03bb8d0 100644
--- 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 *,