Re: What do to with Atlas ?
Le vendredi 09 juillet 2010 à 15:23 +0100, Julien Cristau a écrit :
> On Fri, Jul 9, 2010 at 16:03:35 +0200, Sylvestre Ledru wrote:
>
> > > I'm not convinced. It seems that you have a nice set of different
> > > arch-specific issues.
> > As I said previously, I am no expert in Atlas. However, I think that
> > Atlas is doing such operations (at least for some issues) to check if
> > the CPU extensions are available or not.
> >
> It should not do this at build time.
IIRC, Atlas loops over series of build/test operations to find the set
of compilation parameters (including CPU extensions to use) that suits
best the machine it is running on. It is also able to take a set of
pre-computed parameters and simply build using them.
Unless this behavior has changed significantly (my Atlas knowledge being
outdated) I think the source package should contain pre-computed
parameters for each of the architectures and sub-architectures it can
build on.
Cheers,
--
.''`.
: :' : “Fuck you sir, don’t be suprised when you die if
`. `' you burn in Hell, because I am a solid Christian
`- and I am praying for you.” -- Mike
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