#11760: 'sage-location' shouldn't "initialize" .pc (pkg-config) files more than
once
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   Reporter:  leif     |          Owner:                                        
         
       Type:  defect   |         Status:  needs_review                          
         
   Priority:  blocker  |      Milestone:  sage-4.7.2                            
         
  Component:  scripts  |       Keywords:  pkgconfig libpng Duplicate definition 
SAGE_ROOT
Work_issues:           |       Upstream:  N/A                                   
         
   Reviewer:           |         Author:  Leif Leonhardy                        
         
     Merged:           |   Dependencies:                                        
         
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Comment(by leif):

 Replying to [comment:5 leif]:
 > The fix doesn't ''cure'' already broken installations (i.e., `.pc` files
 already containing multiple definitions, like usually `libpng[12].pc`).

 I could more or less easily also add that, but it wouldn't help much (on
 e.g. upgrades) since neither `update_pkgconfig_files()` nor
 `initialize_pkgconfig_files()` is called later, or more precisely, before
 we run into potential errors due to multiple definitions.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11760#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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