int
AlsaMidiIO::start ()
{
- if (pbd_realtime_pthread_create (SCHED_FIFO, -21, 100000,
+ if (pbd_realtime_pthread_create (PBD_SCHED_FIFO, -21, 100000,
&_main_thread, pthread_process, this))
{
if (pthread_create (&_main_thread, NULL, pthread_process, this)) {