Posix compliant cpu clocks V6 [2/3]: Glibc patch

[Christoph Lameter]

On Fri, 1 Oct 2004, Ulrich Drepper wrote:

> Christoph Lameter wrote:
> > The following patch makes glibc not provide the above clocks and use the
> > kernel clocks instead if either of the following condition is met:
>
> Did you ever hear about a concept called binary compatiblity?  Don't
> bother working on any glibc patch.

I wonder what this is about?