Index: services/outside_network.c
===================================================================
--- services/outside_network.c	(revision 3821)
+++ services/outside_network.c	(working copy)
@@ -1409,7 +1409,8 @@
 
 /** perturb a dname capitalization randomly */
 static void
-serviced_perturb_qname(struct ub_randstate* rnd, uint8_t* qbuf, size_t len)
+serviced_perturb_qname(struct ub_randstate* rnd, uint8_t* qbuf,
+	size_t ATTR_UNUSED(len))
 {
 	uint8_t lablen;
 	uint8_t* d = qbuf + 10;
Index: util/config_file.c
===================================================================
--- util/config_file.c	(revision 3821)
+++ util/config_file.c	(working copy)
@@ -1434,7 +1434,7 @@
 
 /** set a bit in a bit array */
 static void
-cfg_set_bit(uint8_t* bitlist, size_t len, int id)
+cfg_set_bit(uint8_t* bitlist, size_t ATTR_UNUSED(len), int id)
 {
 	int pos = id/8;
 	log_assert((size_t)pos < len);
Index: util/netevent.c
===================================================================
--- util/netevent.c	(revision 3821)
+++ util/netevent.c	(working copy)
@@ -852,7 +852,7 @@
 #endif
 
 void 
-comm_point_tcp_accept_callback(int fd, short event, void* arg)
+comm_point_tcp_accept_callback(int ATTR_UNUSED(fd), short event, void* arg)
 {
 	struct comm_point* c = (struct comm_point*)arg, *c_hdl;
 	int new_fd;