anchor.diff:        portable performance. At present, it provides C and Fortran77 interfaces to a
         portably efficient BLAS implementation, as well as a few routines from LAPACK.
       '';
  +
  +    maintainers = with stdenv.lib.maintainers; [ ttuegel ];
     };
   }
  
positive.code: 
    src = fetchurl {
      url = "mirror://sourceforge/math-atlas/atlas${version}.tar.bz2";
      sha256 = "11ncgdc7kzb2y2gqb3sgarm5saj9fr07r3h2yh2h5bja429b85d2";
    };
  
    buildInputs = [ gfortran ];
  
negative.code: #   |---------------------------------------------+------------------------|
  #   | -b 32                                       | -b 64                  |
  #   | -A 18  (Pentium II)                         | -A 31 (Athlon K7)      |
  #   | -V 1 (No SIMD: Pentium II doesn't have SSE) | -V 384 (SSE1 and SSE2) |
  #
  # Users who want to compile a highly optimized version of ATLAS that's suitable
  # for their local machine can override these settings accordingly.
  #
  # The -V flags can change with each release as new instruction sets are added
  # because upstream thinks it's a good idea to add entries at the start of an
  # enum, rather than the end. If the build suddenly fails with messages about
  # missing instruction sets, you may need to poke around in the source a bit.
  
  let
    version = "3.10.2";
  
    optionalString = stdenv.lib.optionalString;
    optional = stdenv.lib.optional;
  