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).

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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