Compiling ircd2.10.3

[Lynne Koleszar <lynux@xxxxxxxxx>]

Hello!  I have just downloaded a copy of ircd2.10.3 and have tried to
compile it but have run into an error which I know nothing about, can
anyone please help out?  I am running Redhat Linux v6.1.  Here is the
error message I get when I use 'make all' or 'make server':

-DIAUTH_PATH=
../ircd/s_bsd.c: In function 'read_message':
../ircd/s_bsd.c:2032: 'POLLWRNNORM' undeclared (first use in this
function)
../ircd/s_bsd.c:2032: (Each undeclared identifier is reported only once
for each function it appears in

I am not very familiar with compiling software so any help would be
appreciated!