Questions about license and copyright headers

[Loïc Martin <loic.martin3@gmail.com>]

Hi,
As far as I understand, while source file license and copyright headers 
aren't mandatory for packaged programs in Debian - as long as the 
license of the source tarball is ok and included - we're still 
encouraged to see with upstream if they could include those missing headers.

I couldn't find details in the Debian Policy Manual, but I've seen a few 
time that only for the source files that make it into the distributed 
binaries are those headers important - not .make, .sh and configure 
files. Is that correct? And do we document them in debian/copyright when 
they've got copyright headers?

What of files generated by other tools, for example the .glade xml files 
generated by GLADE, or makefiles generated by Automake that would lack 
copyright headers?

Cheers,
Loïc