anchor.diff:  }:
   
   let
  -  version = "1.13";
  +  version = "1.15";
   in stdenv.mkDerivation {
     pname = "libxsmm";
     inherit version;
  
positive.code:     owner = "hfp";
      repo = "libxsmm";
      rev = "refs/tags/${version}";
      sha256 = "1c15ccy7vbmvxkfnc7sn26wnf6gr6gxgkmilpgpycm1fhi8ikd6w";
    };
  
    buildInputs = [
  
negative.code:   meta = with stdenv.lib; {
      description = "Library targeting Intel Architecture for specialized dense and sparse matrix operations, and deep learning primitives";
      license = licenses.bsd3;
      homepage = "https://github.com/hfp/libxsmm";
      platforms = platforms.linux;
      maintainers = with stdenv.lib.maintainers; [ chessai ];
      inherit version;
  