diff --git a/test/dns-server.c b/test/dns-server.c
index 086b52d1..d885f4c8 100644
--- a/test/dns-server.c
+++ b/test/dns-server.c
@@ -50,14 +50,12 @@ typedef struct {
 static uv_loop_t* loop;
 
 
-static int server_closed;
 static uv_tcp_t server;
 
 
 static void after_write(uv_write_t* req, int status);
 static void after_read(uv_stream_t*, ssize_t nread, uv_buf_t buf);
 static void on_close(uv_handle_t* peer);
-static void on_server_close(uv_handle_t* handle);
 static void on_connection(uv_stream_t*, int status);
 
 #define WRITE_BUF_LEN   (64*1024)
@@ -283,11 +281,6 @@ static void on_connection(uv_stream_t* server, int status) {
 }
 
 
-static void on_server_close(uv_handle_t* handle) {
-  ASSERT(handle == (uv_handle_t*)&server);
-}
-
-
 static int dns_start(int port) {
   struct sockaddr_in addr = uv_ip4_addr("0.0.0.0", port);
   int r;
diff --git a/test/test-get-memory.c b/test/test-get-memory.c
index 00281af6..248716ea 100644
--- a/test/test-get-memory.c
+++ b/test/test-get-memory.c
@@ -26,7 +26,7 @@ TEST_IMPL(get_memory) {
   uint64_t free_mem = uv_get_free_memory();
   uint64_t total_mem = uv_get_total_memory();
 
-  printf("free_mem=%llu, total_mem=%llu\n", free_mem, total_mem);
+  printf("free_mem=%zu, total_mem=%zu\n", free_mem, total_mem);
 
   ASSERT(free_mem > 0);
   ASSERT(total_mem > 0);
diff --git a/test/test-platform-output.c b/test/test-platform-output.c
index 99c0551b..729d2e3c 100644
--- a/test/test-platform-output.c
+++ b/test/test-platform-output.c
@@ -40,7 +40,7 @@ TEST_IMPL(platform_output) {
 
   err = uv_resident_set_memory(&rss);
   ASSERT(UV_OK == err.code);
-  fprintf(stderr, "uv_resident_set_memory: %d\n", rss);
+  fprintf(stderr, "uv_resident_set_memory: %zu\n", rss);
 
   err = uv_uptime(&uptime);
   ASSERT(UV_OK == err.code);
@@ -53,11 +53,11 @@ TEST_IMPL(platform_output) {
   for (i = 0; i < count; i++) {
     fprintf(stderr, "  model: %s\n", cpus[i].model);
     fprintf(stderr, "  speed: %d\n", cpus[i].speed);
-    fprintf(stderr, "  times.sys: %llu\n", cpus[i].cpu_times.sys);
-    fprintf(stderr, "  times.user: %llu\n", cpus[i].cpu_times.user);
-    fprintf(stderr, "  times.idle: %llu\n", cpus[i].cpu_times.idle);
-    fprintf(stderr, "  times.irq: %llu\n", cpus[i].cpu_times.irq);
-    fprintf(stderr, "  times.nice: %llu\n", cpus[i].cpu_times.nice);
+    fprintf(stderr, "  times.sys: %zu\n", cpus[i].cpu_times.sys);
+    fprintf(stderr, "  times.user: %zu\n", cpus[i].cpu_times.user);
+    fprintf(stderr, "  times.idle: %zu\n", cpus[i].cpu_times.idle);
+    fprintf(stderr, "  times.irq: %zu\n", cpus[i].cpu_times.irq);
+    fprintf(stderr, "  times.nice: %zu\n", cpus[i].cpu_times.nice);
   }
   uv_free_cpu_info(cpus, count);
 
diff --git a/test/test-tcp-writealot.c b/test/test-tcp-writealot.c
index f6b1dc6e..a8c28bff 100644
--- a/test/test-tcp-writealot.c
+++ b/test/test-tcp-writealot.c
@@ -41,7 +41,6 @@ static int write_cb_called = 0;
 static int close_cb_called = 0;
 static int bytes_sent = 0;
 static int bytes_sent_done = 0;
-static int bytes_received = 0;
 static int bytes_received_done = 0;
 
 
diff --git a/test/test-udp-multicast-ttl.c b/test/test-udp-multicast-ttl.c
index e54583c1..b2f11251 100644
--- a/test/test-udp-multicast-ttl.c
+++ b/test/test-udp-multicast-ttl.c
@@ -32,10 +32,7 @@
 static uv_udp_t server;
 static uv_udp_t client;
 
-static int cl_recv_cb_called;
-
 static int sv_send_cb_called;
-
 static int close_cb_called;