#12366: In mpfr, delete old libraries *after* build
--------------------------------+-------------------------------------------
   Reporter:  jdemeyer          |          Owner:  tbd           
       Type:  enhancement       |         Status:  needs_work    
   Priority:  minor             |      Milestone:  sage-5.0      
  Component:  packages          |       Keywords:  mpfr spkg gcc 
Work_issues:                    |       Upstream:  N/A           
   Reviewer:  Michael Orlitzky  |         Author:  Jeroen Demeyer
     Merged:                    |   Dependencies:                
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Changes (by mjo):

  * status:  needs_review => needs_work
  * reviewer:  => Michael Orlitzky


Comment:

 We should only remove the old stuff after a successful build; otherwise,
 we can't try again. I made some small breaking change to one of the header
 files:

 {{{
 $ sage -f mpfr-2.4.2.p1.spkg | grep -i deleting
 Deleting directories from past builds of previous/current versions of
 mpfr-2.4.2.p1
 Deleting old libraries
 Deleting old headers
 Error: Failed to install package 'mpfr-2.4.2.p1'.
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12366#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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