On Tuesday, 26 January 2016 16:40:06 UTC, William wrote:
>
> On Mon, Jan 25, 2016 at 10:13 PM, bernard ck Wong 
> <[email protected] <javascript:>> wrote: 
> > Hi, I am wondering if it is possible to compile Sage from source and 
> > configure it in such a way that it will use software that is already 
> > installed in my system instead of building the bundled ones? For 
> example, I 
> > have R, Singular and Maxima already installed in their latest versions 
> and I 
> > have already built atlas optimised to my machine. It seems that there is 
> no 
> > point for sage to create duplicates which are either older or not as 
> well 
> > tuned to my setup. 
> > 
>
> No, it's not possible. 
>

however you CAN use atlas already pre-installed.
See SAGE_ATLAS_LIB in 
http://doc.sagemath.org/html/en/installation/source.html#environment-variables 

this will cut the Sage compilation time by 50% or so...


> William 
>
> > Thanks/ 
> > 
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>
>
> -- 
> William (http://wstein.org) 
>

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