X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/f3ebb786e451da973560f1c9d8cdb151d25108b5..86ddd98d63910f57b5aaacc6d77e09aa65b10b32:/src/src/tree.c

diff --git a/src/src/tree.c b/src/src/tree.c
index d5a409651..e16a8643c 100644
--- a/src/src/tree.c
+++ b/src/src/tree.c
@@ -27,7 +27,7 @@ Returns:  nothing
 */
 
 void
-tree_add_nonrecipient(uschar *s)
+tree_add_nonrecipient(const uschar *s)
 {
 rmark rpoint = store_mark();
 tree_node *node = store_get(sizeof(tree_node) + Ustrlen(s), is_tainted(s));
@@ -52,7 +52,7 @@ Returns:  nothing
 */
 
 void
-tree_add_duplicate(uschar *s, address_item *addr)
+tree_add_duplicate(const uschar *s, address_item *addr)
 {
 rmark rpoint = store_mark();
 tree_node *node = store_get(sizeof(tree_node) + Ustrlen(s), is_tainted(s));
@@ -74,7 +74,7 @@ Returns:     nothing
 */
 
 void
-tree_add_unusable(host_item *h)
+tree_add_unusable(const host_item *h)
 {
 rmark rpoint = store_mark();
 tree_node *node;