4 files changed, 5 insertions, 5 deletions
diff --git a/src/tests/threads/gss-perf.c b/src/tests/threads/gss-perf.c
index f3630c2..0ca6d84 100644
--- a/src/tests/threads/gss-perf.c
+++ b/src/tests/threads/gss-perf.c
@@ -78,7 +78,7 @@ static void usage (void) __attribute__((noreturn));
 static void set_target (char *);
 
 static void
-usage ()
+usage (void)
 {
     fprintf (stderr, "usage: %s [ options ] service-name\n", prog);
     fprintf (stderr, "  service-name\tGSSAPI host-based service name (e.g., 'host@FQDN')\n");
@@ -249,7 +249,7 @@ do_accept (gss_buffer_desc *msg, int iter)
 }
 
 static gss_buffer_desc
-do_init ()
+do_init (void)
 {
     OM_uint32 maj_stat, min_stat;
     gss_ctx_id_t ctx = GSS_C_NO_CONTEXT;
diff --git a/src/tests/threads/init_ctx.c b/src/tests/threads/init_ctx.c
index 42619a9..dc3d417 100644
--- a/src/tests/threads/init_ctx.c
+++ b/src/tests/threads/init_ctx.c
@@ -57,7 +57,7 @@ static int do_pause;
 static void usage (void) __attribute__((noreturn));
 
 static void
-usage ()
+usage (void)
 {
     fprintf (stderr, "usage: %s [ options ]\n", prog);
     fprintf (stderr, "options:\n");
diff --git a/src/tests/threads/profread.c b/src/tests/threads/profread.c
index be28ba4..69bdb05 100644
--- a/src/tests/threads/profread.c
+++ b/src/tests/threads/profread.c
@@ -59,7 +59,7 @@ static int do_pause;
 static void usage (void) __attribute__((noreturn));
 
 static void
-usage ()
+usage (void)
 {
     fprintf (stderr, "usage: %s [ options ]\n", prog);
     fprintf (stderr, "options:\n");
diff --git a/src/tests/threads/t_rcache.c b/src/tests/threads/t_rcache.c
index 07c45cc..8121429 100644
--- a/src/tests/threads/t_rcache.c
+++ b/src/tests/threads/t_rcache.c
@@ -51,7 +51,7 @@ int n_threads = DEFAULT_N_THREADS;
 int interval = DEFAULT_INTERVAL;
 int *ip;
 
-static void wait_for_tick ()
+static void wait_for_tick (void)
 {
     time_t now, next;
     now = time(0);