anchor.diff:      "CUBLAS_LIB=${cudatoolkit}/lib/libcublas.so"
     ] ++ lib.optionals stdenv.isDarwin [
       # Unless these are set, the build will attempt to use `Accelerate` on darwin, see:
  -    # https://github.com/DrTimothyAldenDavis/SuiteSparse/blob/v5.8.1/SuiteSparse_config/SuiteSparse_config.mk#L368
  +    # https://github.com/DrTimothyAldenDavis/SuiteSparse/blob/v5.9.0/SuiteSparse_config/SuiteSparse_config.mk#L368
       "BLAS=-lblas"
       "LAPACK=-llapack"
     ]
  
positive.code:     owner = "DrTimothyAldenDavis";
      repo = "SuiteSparse";
      rev = "v${version}";
      sha256 = "0qjlyfxs8s48rs63c2fzspisgq1kk4bwkgnhmh125hgkdhrq2w1c";
    };
  
    nativeBuildInputs = [
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "suitesparse";
    version = "5.9.0";
  
    outputs = [ "out" "dev" "doc" ];
  
  