5218 posix definition of NULL
correct unistd.h and iso/stddef_iso.h
update gate source affected

@@ -342,11 +342,11 @@
         if (dupev == NULL) {
                 free(ename);
                 return (EAGAIN);
         }
 
-        if (nvlist_alloc(&nvl, NV_UNIQUE_NAME_TYPE, NULL)) {
+        if (nvlist_alloc(&nvl, NV_UNIQUE_NAME_TYPE, 0)) {
                 free(ename);
                 sysevent_free(dupev);
                 return (EAGAIN);
         }
 

@@ -369,11 +369,11 @@
 
         pack_buf = NULL;
         if (nvlist_add_string(nvl, PICLEVENTARG_EVENT_NAME, ename) ||
             nvlist_add_string(nvl, PICLEVENTARG_DATA_TYPE,
             PICLEVENTARG_PICLEVENT_DATA) ||
-            nvlist_pack(nvl, &pack_buf, &nvl_size, NV_ENCODE_NATIVE, NULL)) {
+            nvlist_pack(nvl, &pack_buf, &nvl_size, NV_ENCODE_NATIVE, 0)) {
                 free(ename);
                 nvlist_free(nvl);
                 sysevent_free(dupev);
                 return (EAGAIN);
         }

@@ -400,11 +400,11 @@
         init_queue();
 
         (void) mutex_init(&nvq_lock, USYNC_THREAD, NULL);
         (void) cond_init(&nvq_cv, USYNC_THREAD, NULL);
 
-        if (thr_create(NULL, NULL, piclslm_deliver_thr,
+        if (thr_create(NULL, 0, piclslm_deliver_thr,
             NULL, THR_BOUND, &piclslm_deliver_thr_id) != 0) {
                 (void) mutex_destroy(&nvq_lock);
                 (void) cond_destroy(&nvq_cv);
                 return (NULL);
         }