#14226: add SAGE_SPKG_INST environment variable
---------------------------------------------+------------------------------
Reporter: rohana | Owner: jason
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.9
Component: misc | Resolution:
Keywords: installed spkgs directory | Work issues:
Report Upstream: N/A | Reviewers: Robert Bradshaw,
Leif Leonhardy
Authors: R. Andrew Ohana | Merged in:
Dependencies: #13432 | Stopgaps:
---------------------------------------------+------------------------------
Comment (by leif):
Replying to [comment:22 leif]:
> Or, how does `make INST="${SAGE_SPKG_INST:-installed}"` behave? (I
think this would be better.)
After deep thinking...
{{{
#!sh
make INST="`echo ${SAGE_SPKG_INST:-installed} | sed 's/ /\\\\ /g'`"
}}}
(without changes to `deps`).
I think this should solve all issues.
>
> [[BR]]
>
> Replying to [comment:21 rohana]:
> > I don't mind if it is relative, but I don't want to be fixed to the
location `spkg/installed`.
>
> I meant just in the `Makefile`. (`$SAGE_SPKG_INST` could still be
absolute.)
>
> > The problem with a relative path is that then there are issues if
using `$SAGE_SPKG_INST` from some other directory (which can and does
happen)
>
> See above.
>
> > `sage-make_relative` isn't available upon the first usage of `deps`.
>
> I was just kidding.
>
> > Making a symbolic link would work in the case that `$(INST) !=
$SAGE_SPKG_INST`.
>
> Well, just change `INST = installed` to something else (`INST =
this_is_always_the_relative_path_to_a_symlink`), and let it point to
either `installed` or `$SAGE_SPKG_INST` (where the latter is absolute).
Not sure about performance issues.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14226#comment:24>
Sage <http://www.sagemath.org>
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