#12548: In MPFR, don't delete old libraries
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Reporter: jdemeyer | Owner: tbd
Type: enhancement | Status: positive_review
Priority: major | Milestone: sage-5.0
Component: packages | Keywords:
Work_issues: | Upstream: N/A
Reviewer: John Palmieri | Author: Jeroen Demeyer
Merged: | Dependencies:
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Comment(by jdemeyer):
Replying to [comment:5 jpflori]:
> Isn't the point of deleting the old librairies to not have tons of old
librairies inside lib/ if Sage keeps on getting updated?
Probably. But this wouldn't work here, as deleting the old mpir/mpfr/mpc
libraries would mean that gcc stops working. There are work-arounds, but
they would make the build/upgrade process a lot more complicated.
> And wasn't #12366 sufficient for building gcc?
For ''serial'' builds, #12366 is sufficient. The problem with
''parallel'' builds is that there is a cerain time between the deleting of
the old mpfr libraries and the installation of the new mpfr libraries.
During that time, a gcc in a parallel build wouldn't work anymore.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12548#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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