gs testing on stable

[robin.c.smith@bt.com]

I need to install gs from testing on my stable system.

So I tried:-

apt-get source gs --compile

This retrieved the files and tried to comiple them but ended with an error
on dh_clean.
The error I get is:-
dh_clean: Sorry, but 2 is the highest compatability level of debhelper
currently supported.

I searched the internet and found the same problem for another app and the
suggested solution is to set DH_COMPAT=2, this doesn't fix it.

How do I get gs ( or any other app ) to build neatly from source using
apt-get source?

Thanks in advance

Robin