setitimer, getitimer() in rtems?

[Gene Smith]

Porting in some code that runs on linux, my last undefined link items 
are setitimer and getitimer. I can't seem to find them in rtems (4.8.0) 
except in the sys/time.h include file so it compiles. Saw some reference 
to them in old mailing list threads that implied (or said?) that you 
have to implement them using rtems native timer calls. Is this right?

Thanks,
-gene