Bug#796745: possibly build additional hdf4-tools-alt (without netcdf support)

[Andreas Hilboll]

> Actually my plan is to try to have only one HDF4 library without
> embedded netcdf: packages needing netcdf can link to the netcdf
> library. This is the same way hdf4 is packaged in Fedora.

Great, this would make things a lot easier, I guess.   All the packages
depending on libhdf4-0-alt would need to change their dependencies then
-- do you need help organizing this?

> I'd like to test this approach locally after the netcdf transition.

Can you elaborate?  What transition?