[tz] [PATCH 0/1] Allow 'backzone' to be incorporated in 'right' data

[Ian Abbott]

The REDO macro in the Makefile currently allows you to build
POSIX data, 'right' data, or both sets with either the default.  It also
allows information from the 'backzone' file to be incorporated into the
POSIX data set but not if the 'right' data is being built to.

There may be some unlucky bar steward out there who needs to incorporate
the 'backzone' file data into the 'right' data set, or into both the
POSIX and 'right' data sets, so I added a few extra targets to the
Makefile for your consideration.  See patch in following email.