Mark binary distribution of Mozart/Oz 2.0 as such

pkgs/development/compilers/mozart/default.nix pkgs/development/compilers/mozart/binary.nix

···
   version = "2.0.0";
 in
 stdenv.mkDerivation {
-  name = "mozart-${version}";
+  name = "mozart-binary-${version}";
 
   src = fetchurl {
     url = "http://sourceforge.net/projects/mozart-oz/files/v${version}-alpha.0/mozart2-${version}-alpha.0+build.4105.5c06ced-x86_64-linux.tar.gz";

pkgs/top-level/all-packages.nix

···
 
   monoDLLFixer = callPackage ../build-support/mono-dll-fixer { };
 
-  mozart = callPackage ../development/compilers/mozart { };
+  mozart-binary = callPackage ../development/compilers/mozart/binary.nix { };
+  mozart = mozart-binary;
 
   neko = callPackage ../development/compilers/neko { };