testsuite: Fix warnings

testsuite/media01/test_main.c

@@ -31,6 +31,7 @@
 
 #include <assert.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 #include <rtems/bdbuf.h>
 #include <rtems/console.h>

testsuite/rcconf02/test_main.c

@@ -189,7 +189,7 @@ static void
 waiter(int fd, int secs, void *arg)
 {
   int*        toggle = (int*) arg;
-  const char* toggles = "|/-|\-";
+  const char* toggles = "|/-|\\-";
   printf("\b%c", toggles[*toggle]);
   fflush(stdout);
   ++(*toggle);

testsuite/selectpollkqueue01/test_main.c

@@ -967,7 +967,6 @@ test_kqueue_user(test_context *ctx)
 	struct kevent event;
 	const struct timespec *timeout = NULL;
 	int rv;
-	ssize_t n;
 
 	puts("test kqueue user");
 

testsuite/smp01/test_main.c

@@ -260,8 +260,6 @@ test_main(void)
 {
 	test_context *ctx = &test_instance;
 	size_t i;
-	rtems_id id;
-	rtems_status_code sc;
 
 	for (i = 0; i < OBJ_COUNT; ++i) {
 		ctx->value[i] = i;