#11232: we should not build patch on Cygwin
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Reporter: dimpase | Owner: tbd
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.7
Component: cygwin | Keywords:
Work_issues: | Upstream: N/A
Reviewer: David Kirkby | Author:
Merged: | Dependencies:
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Comment(by drkirkby):
Replying to [comment:11 dimpase]:
> Replying to [comment:10 drkirkby]:
> One reason to have this patch in anyway is that with the current build
system it is perfectly possible to install the patch spkg after the build
is done (sage-spkg does not check prereqs). And the absence of the current
patch to the patch spkg would create a problem, as the Sage's patch will
break.
Yes, it is possible to do that. But normally one would type "make" and let
it do the work. If you manually install items in an abnormal order, you
should either know what you are doing or expect a failed installation.
> This is a general weakness of the Sage build system, that also manifests
elsewhere (e.g. it's possible to nuke any standard package this way, if
there is an optional package of the same name, e.g. GLPK is an example).
> But this needs another ticket.
Well, it's just crazy we have an old optional package with the same name
is a current one in Sage. But that's an entirely different issue. I have
created a ticket for that - #11247.
If someone wants to screw up their Sage build it is not hard (I've done it
myself), but we should try to prevent it as much as possible. Hence
checking they have the right perquisites should be done at the start of
the build process.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11232#comment:12>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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