anchor.diff:        };
       }
       rec {
  -      name = "libpixman-1-0_0.30.2-1ubuntu0.0.0.0.1+srt4_amd64";
  -      md5 = "f3f0e80ce2a6be9e830862184223b3ff";
  -      source = fetchurl {
  -        url = "http://repo.steampowered.com/steamrt/pool/main/p/pixman/libpixman-1-0_0.30.2-1ubuntu0.0.0.0.1+srt4_amd64.deb";
  +      name = "libpixman-1-0_0.30.2-1ubuntu0.0.0.0.2+srt1_amd64";
  +      md5 = "52134e1b8190957f069268827f2bde74";
  +      source = fetchurl {
  +        url = "http://repo.steampowered.com/steamrt/pool/main/p/pixman/libpixman-1-0_0.30.2-1ubuntu0.0.0.0.2+srt1_amd64.deb";
           inherit md5;
           name = "libpixman-1-0.deb";
         };
  
positive.code:       };
      }
      rec {
        name = "libexpat1_2.0.1-7.2ubuntu1.1+srt4_i386";
        md5 = "4478766ffb8f96db66de0b0f2ccfb290";
        source = fetchurl {
          url = "http://repo.steampowered.com/steamrt/pool/main/e/expat/libexpat1_2.0.1-7.2ubuntu1.1+srt4_i386.deb";
          inherit md5;
          name = "libexpat1.deb";
        };
  
negative.code:       };
      }
      rec {
        name = "libvdpau1_0.4.1-3ubuntu1.2+srt1_i386";
        md5 = "61cd2560476f54dc11b3e859e104daec";
        source = fetchurl {
          url = "http://repo.steampowered.com/steamrt/pool/main/libv/libvdpau/libvdpau1_0.4.1-3ubuntu1.2+srt1_i386.deb";
          inherit md5;
          name = "libvdpau1.deb";
        };
  