#18691: Trac #17572 breaks the installation of several R packages.
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       Reporter:  charpent           |        Owner:
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.8
      Component:  packages:          |   Resolution:
  standard                           |    Merged in:
       Keywords:  r-project          |    Reviewers:
        Authors:  charpent           |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  7288cdd4e8d2a04f4163dfac1249898d01e50492
  u/charpent/trac__17572_breaks_the_installation_of_several_r_packages_|     
Stopgaps:
   Dependencies:                     |
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Comment (by fbissey):

 I think we need to be more careful there. #17572 is caused by interference
 with another `R` install on the system. Whether there is breakage or not
 that is a problem. You don't usually see it on non-apple because your
 system variable and sage variables are likely to be similar. But it also
 means that you will share the installed package between your `R` install
 outside of sage and the one installed in sage.

 That is not sane.

 I think we would be better served by defining `R_HOME` in the sage
 environment rather than bluntly unseting it. I unfortunately do not keep
 crap in `/usr/local` on my apple machine (I know better, and so should a
 lot of people) so meaningful testing is hard for me.

--
Ticket URL: <http://trac.sagemath.org/ticket/18691#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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