rtprio and nice

[Lieven Moors]

hello everyone,
i have some questions regarding the rtprio and nice-settings in the 
limits-file.
i am working with pam 0.99.4 and pam doesn' t recognize nice or rtprio as 
valid limit items.
the auth.log says "unknown limit item".
did some googling and found out this might be a glibc problem: RLIMIT_RTPRIO 
and RLIMIT_NICE not defined in the <bits/resource.h> file.
i also found some hints that certain earlier pam patches resolved this by 
defining these themselves.

my question is if recent pam-versions are  including these definitions, or 
not, or that libc-patches or updates are necessary for rtprio and 
nice-limits to work.
any help in this matter would be really appreciated,

my regards

lieven