these at the moment, but applications that test for them will now
have a better chance of compiling.
I have intentionally omitted errnos that are only good for STREAMS,
since apps that use STREAMS won't compile anyway. The exception is
EPROTO, which was apparently intended for STREAMS, but worth having
anyway because Linux (mis)uses it for other things.
#define EDOFUS 88 /* Programming error */
This can be used to signal error situations which indicate that the
program logic or assumptions is deficient.
