On Sun, Oct 24, 2004 at 09:42:45PM +0200, Kyrre Ness Sjobak wrote: > Yes, but (being anything than a compiler specialist...) can't you > optimize specialy for a spesific CPU, not just an arch? And how can this > affect loading times? You can - and to answer the original question about rebuilding - look at something like the "mach" tool (not to be confused with mach the OS). Loading times are more about link order than anything else. Tools like gprof can help compute the optimal link order for binaries. Also fixing up the library fixups can improve performance - and that is work that has been done in gtk for example. Alan