anchor.diff:          { extraPackages =
               [ "libdbd-sqlite3-perl" "libsqlite3-dev" "libbz2-dev" "libwww-curl-perl" "libcurl-dev" "libcurl3-nss" "libssl-dev" "liblzma-dev" ]
               ++ extraPackages; };
  -      memSize = 1024;
  +      memSize = 8192;
         meta.schedulingPriority = 50;
         postInstall = "make installcheck";
         configureFlags = "--sysconfdir=/etc";
  
positive.code:         ++ extraDebPackages;
        debMaintainer = "Eelco Dolstra <eelco.dolstra@logicblox.com>";
        doInstallCheck = true;
      };
  
  
  
negative.code:     deb_ubuntu1510x86_64 = makeDeb_x86_64 (diskImageFuns: diskImageFuns.ubuntu1510x86_64) [ "libsodium-dev" ] [ "libsodium13" ];
      deb_ubuntu1604i386 = makeDeb_i686 (diskImageFuns: diskImageFuns.ubuntu1604i386) [ "libsodium-dev" ] [ "libsodium18" ];
      deb_ubuntu1604x86_64 = makeDeb_x86_64 (diskImageFuns: diskImageFuns.ubuntu1604x86_64) [ "libsodium-dev" ] [ "libsodium18" ];
      deb_ubuntu1610i386 = makeDeb_i686 (diskImageFuns: diskImageFuns.ubuntu1610i386) [ "libsodium-dev" ] [ "libsodium18" ];
      deb_ubuntu1610x86_64 = makeDeb_x86_64 (diskImageFuns: diskImageFuns.ubuntu1610x86_64) [ "libsodium-dev" ] [ "libsodium18" ];
  
  
      # System tests.
  