anchor.diff:      /* TODO: there are also MacOS, FreeBSD and Windows versions */
       x86_64-linux = {
         arch = "linuxx86";
  -      sha256 = "04p77n18cw0bc8i66mp2vfrhlliahrx66lm004a3nw3h0mdk0gd8";
  +      sha256 = "0d2vhp5n74yhwixnvlsnp7dzaf9aj6zd2894hr2728djyd8x9fx6";
         runtime = "lx86cl64";
         kernel = "linuxx8664";
       };
  
positive.code:     };
      armv7l-linux = {
        arch = "linuxarm";
        sha256 = "0xg9p1q1fpgyfhwjk2hh24vqzddzx5zqff04lycf0vml5qw1gnkv";
        runtime = "armcl";
        kernel = "linuxarm";
      };
  
negative.code: 
  stdenv.mkDerivation rec {
    name     = "ccl-${version}";
    version  = "1.11";
    revision = "16313";
  
    src = fetchsvn {
  