Added 64bit Linux target (x86_64), also fixed compilation warnings when compiling for this target

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@624 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip/src/test-pjsip/transport_test.c b/pjsip/src/test-pjsip/transport_test.c
index 2d84efe..e5baa04 100644
--- a/pjsip/src/test-pjsip/transport_test.c
+++ b/pjsip/src/test-pjsip/transport_test.c
@@ -489,7 +489,7 @@
 
 static int rt_worker_thread(void *arg)
 {
-    int i, thread_id = (int)arg;
+    int i, thread_id = (int)(long)arg;
     pj_time_val poll_delay = { 0, 10 };
 
     /* Sleep to allow main threads to run. */
@@ -576,7 +576,7 @@
 	}
 
 	/* Create thread, suspended. */
-	status = pj_thread_create(pool, "rttest%p", &rt_worker_thread, (void*)i, 0,
+	status = pj_thread_create(pool, "rttest%p", &rt_worker_thread, (void*)(long)i, 0,
 				  PJ_THREAD_SUSPENDED, &rt_test_data[i].thread);
 	if (status != PJ_SUCCESS) {
 	    app_perror("   error: unable to create thread", status);