in case a named semaphore is used, it is necessary to close the semaphore to remove
all sm segments. sem_unlink just removes the name references once all proceeses have closed
the sem.
Fixes issue: #4336
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
sharedfp/sm: unlink only needs to be called by one process
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
4d995bd4eb