Always use strict C prototypes (fixes gcc -Wstrict-prototypes).
diff --git a/test/srtp_driver.c b/test/srtp_driver.c
index cffbd01..ce02a1a 100644
--- a/test/srtp_driver.c
+++ b/test/srtp_driver.c
@@ -54,13 +54,13 @@
 #define PRINT_REFERENCE_PACKET 1
 
 err_status_t
-srtp_validate();
+srtp_validate(void);
 
 err_status_t
 srtp_create_big_policy(srtp_policy_t **list);
 
 err_status_t
-srtp_test_remove_stream();
+srtp_test_remove_stream(void);
 
 double
 srtp_bits_per_second(int msg_len_octets, const srtp_policy_t *policy);
@@ -75,7 +75,7 @@
 srtp_do_rejection_timing(const srtp_policy_t *policy);
 
 err_status_t
-srtp_test();
+srtp_test(const srtp_policy_t *policy);
 
 err_status_t
 srtp_session_print_policy(srtp_t srtp);