[OE-core] cleaning perl-native catch 22

[Khem Raj]

Hi

Ubuntu 11.04 decided to put libc in /lib/`uname -m`-linux-gnu/ so
perl-native failed and I patched it and all fine. But here is
interesting thing. When perl-native failed (this is build from scratch)
then I fixed it and as usual tried to do
bitbake -c cleanall perl-native

and it started to build perl instead since I guess its a dependency for
pseudo (may be) and pseudo is not build yet. So whats the way out here
so is it a catch-22

So I had to delete the whole tmpdir

Thanks

-- 
-Khem