* Fix some packages that broke because libuuid can be null on Darwin.

buildDefs doesn't like buildInputs containing nulls.
* In all-packages.nix: xfsProgs -> xfsprogs, jfsUtils -> jfsutils to
  match the upstream name.

svn path=/nixpkgs/trunk/; revision=17726

pkgs/tools/misc/relfs/cvs.2008.03.05.nix

@@ -39,6 +39,9 @@ args : with args;
 		") ["minInit" "doUnpack" "addInputs"];
 	};
 	in with localDefs;
+
+assert args.libuuid != null;
+        
 stdenv.mkDerivation rec {
 	name = "relfs-"+version;
 	builder = writeScript (name + "-builder")