Merge pull request #3129 from robotology/traversaro-patch-2

Fix setPriority error messages

src/libYARP_os/src/yarp/os/impl/ThreadImpl.cpp

@@ -257,15 +257,15 @@ int ThreadImpl::setPriority(int priority, int policy)
         if (std::is_same<std::thread::native_handle_type, ACE_hthread_t>::value) {
             return ACE_Thread::setprio(thread.native_handle(), priority, policy);
         }
-        yCError(THREADIMPL, "Cannot set priority without ACE");
+        yCError(THREADIMPL, "Cannot set priority as std::thread::native_handle_type is not ACE_hthread_t");
 #elif defined(__unix__) || defined(__APPLE__)
         if (std::is_same<std::thread::native_handle_type, pthread_t>::value) {
             struct sched_param thread_param;
             thread_param.sched_priority = priority;
             int ret = pthread_setschedparam(thread.native_handle(), policy, &thread_param);
             return (ret != 0) ? -1 : 0;
         } else {
-            yCError(THREADIMPL, "Cannot set priority without ACE");
+            yCError(THREADIMPL, "Cannot set priority as std::thread::native_handle_type is not pthread_t");
         }
 #else
         yCError(THREADIMPL, "Cannot set priority without ACE");