anchor.diff: -{ stdenv, fetchurl, gfortran, perl, liblapack, config, coreutils, clang }:
  +{ stdenv, fetchurl, gfortran, perl, liblapack, config, coreutils }:
   
   with stdenv.lib;
   
  
positive.code:     ++
      [
        "FC=gfortran"
        "CC=${if stdenv.isDarwin then "clang" else "gcc"}"
        ''PREFIX="''$(out)"''
        "INTERFACE64=1"
  
negative.code:     description = "Basic Linear Algebra Subprograms";
      license = licenses.bsd3;
      homepage = "https://github.com/xianyi/OpenBLAS";
      platforms = with platforms; unix;
      maintainers = with maintainers; [ ttuegel ];
    };
  }
  