Lunar optimize

[Guillaume]

Le Wed, 29 Sep 2010 16:33:45 +0200,
Jean-Michel Bruenn <jean.bruenn at ip-minds.de> a écrit :

> Hello,
> 
> the thing with that is, that "native" is THE safest optimization for
> your CPU. However, if you're compiling for another box or for a
> chrooted environment (where native will break the whole chrooted
> environment) you're an experienced user who knows what he/she/it is
> doing. So just change safe to "no" (so that you can see the unsafe
> optimizations) and switch the cpu optimization to whatever you like
> and don't touch anything else there.
> 
> Cheers
> Jean
> 
> On Wed, 29 Sep 2010 14:21:23 +0200
> "Guillaume" <sirocco at gmx.fr> wrote:
> 
> > > On 09/28/2010 02:59 PM, Guillaume wrote:
> > >> Hello,
> > >>
> > >> It seems lunar changed the way we can define the CPU with GCC 4.5 in "lunar optimize".
> > >>
> > >> I don't want to use native on my core2 because I sometime create modules for my slow atom
> > >> computer.
> > >> With GCC 4.4 I can select any architecture I want :)
> > >> With GCC 4.5 I only "native" is available  :(  (I don't know architecture "None")
> > >>
> > >> Is there any plan to add more architecture to GCC 4.5 settings ?
> > >> If not I'll manually modify /etc/lunar/local/optimizations.GCC_4_5, could you please confirm
> > >> that updates of lunar module will not overwrite this file.
> > >
> > > Native is correct as base optimization for your atom processor. That's
> > > what you should use.
> > >
> > > Auke
> > >
> > 
> > I agree that native is the correct optimization for any computer that compile modules for itself.
> > But my atom also use applications compiled by another PC ... so I can't set native the other PC.
> > This may looks strange to you but it save me a lot of time :)
> > 
> > I just hope that CPU=native will not be hard-coded in lunar code but will remain in
> > optimizations.GCC_4_5 file.
> > 
> > Drew is true ... I should have a look at distcc, I just don't know how complicated it is (this is
> > why up to know I share some compiled modules between computers).
> > 
> > Guillaume
> > 
> > _______________________________________________
> > Lunar mailing list
> > Lunar at lunar-linux.org
> > http://foo-projects.org/mailman/listinfo/lunar
> 
> 

Thanks for the advice Jean-Michel, Auke.
I didn't pay attention that I have to uncheck "safe optimisation" to configure CPU with GCC 4.5 (Lunar do not handle optimisation menu the same way for GCC 4.4)
That's perfect !

Guillaume