Due to call of nonexistant MY_PV, SRC_URI expands to: http://launchpad.net/bzr/2.1//+download/bzr-2.1.0.tar.gz should be: http://launchpad.net/bzr/2.1/2.1.0/+download/bzr-2.1.0.tar.gz Change MY_PV to PV in ebuild fixes this.
Created attachment 221881 [details, diff] change MY_PV to PV in SRC_URI
Argh, I fixed the problem before, but started the ebuild new from a copy of _beta4....thanks for your notice.