illumos gate

The rpcgen(1) man page says "three", but four files are generated (proto.h, proto_xdr.c, proto_svc.c, proto_clnt.c):

     The rpcgen utility is normally used as in the first synopsis
     where  it  takes  an  input  file and generates three output
     files. If the infile is named proto.x, then rpcgen generates
     a  header  in  proto.h, XDR routines in proto_xdr.c, server-
     side  stubs  in  proto_svc.c,  and  client-side   stubs   in
     proto_clnt.c.  With the -T option, it also generates the RPC
     dispatch table in proto_tbl.i.