On Thu, Jul 15, 2010 at 11:45 AM, John Cremona <john.crem...@gmail.com> wrote:
> In ticket #7092 a change was made to the spkg-install script for pari
> so that on ALL linux systems the compiler flag was changed from -O3
> (the default from the pari distribution) to -O1, in order to fix a
> build issue which ONLY arises on some version of gcc which ships with
> Fedora 11.  This was about 9 months ago (4.1.2).
>
> Given that the current version of Fedora is 13 and that Sage has many
> many Linux users whose builds are being crippled (well, slowed down)
> by this, I propose to *remove* this patch as part of the upgrade to
> pari 2.4.3 (currently under way in #9343 and a goal for Sage 5.0).

Strong +1 to your proposal.

 -- William

>
> Jaap, as you were (I think) the only one who had the problem in the
> first place, can you comment?  I think we will need a very good reason
> to keep the patch in.  I don't know how to write a script which tests
> for a specific Linux distribution and version, but I would be tempted
> to add in something like " if $USERNAME=='jaap' " !
>
> John
>
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-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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