Compiling kernel sources with optimization.

[Adam Bowns <adam-bowns ntlworld com>]

When compiling my custom kernel's, by the look of it, it seems to be
using the -march=athlon and -O2 flags by default. I think its got the
-march=athlon flag from when i selected processor type in the
configuration process.

My question is:- Is it possible to override these values and instead use
say "-march=athlon-xp" and "-O3" I've looked trough the Makefile but I
couldn't see an obvious way of doing it from there, so if it is possible
to do, how would i go about doing it ?

Thanks in advance,
Adam