#17630: Further clean up of ATLAS (or equivalent BLAS) linking
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   Reporter:  jpflori             |            Owner:
       Type:  defect              |           Status:  new
   Priority:  major               |        Milestone:  sage-6.5
  Component:  packages: standard  |         Keywords:
  Merged in:                      |          Authors:
  Reviewers:                      |  Report Upstream:  N/A
Work issues:                      |           Branch:
     Commit:                      |     Dependencies:
   Stopgaps:                      |
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 Different pkgs find ATLAS (or equivalent libs e.g. on OS X and Cygwin)
 libs in different ways.
 In particular the situation is broken on Cygwin.

 The one we tweak ourselves are:
 * ATLAS when we pass SAGE_ATLAS_LIB to decide what to copy/symlink
 * fflas-ffpack
 * iml
 * the Sage library through SAGE_BLAS and module_list.py and its BLAS/BLAS2
 madness
 Other pkgs depend on a BLAS implem but are autonomous.

 My proposal before a pkgconfig solution gets available at #17075 is that
 when ATLAS spkg-install script is run it decides what should be used once
 and for all and other packages use this information (like used to be done
 a little bit when the linbox spkg-install script wrote `echo $LINBOX_BLAS
 > $SAGE_LOCAL/share/cblas_config`)

--
Ticket URL: <http://trac.sagemath.org/ticket/17630>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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