Building packages and compiler flags

[Carsten Friede <cfriede@wh8.tu-dresden.de>]

Hi.

Is it possible to activate specific compiler flags, when building 
packages from source, eg. for the AltiVec, to improve performance?
What I want to do, is to compile particular packages with flags 
according to my iBook G4. My thought is, to get my Debian more 
customized like Gentoo. What I not want is to compile everything from 
scratch. I like Debian! :-)

So, can anybody give me a hand?


Greetings,

Carsten Friede