Backspace in ghci-6.10.1-candidate

[Serge D. Mechveliani]

This is about testing  6.10.0.20081007.

1. DoCon works with it.

2. The question is how to `install' Backspace and UpArrow in ghci.

I make it from source by 6.10-candidate and also by itself
-- on Debian Linux.
And  ghci  does not process  Backspace and UpArrow.
./configure  reported 
  configure:2303: checking whether ghc has editline package
  configure:2314: result: no

And the Debian system area shows the files
  /usr/lib/libedit.so.2
  /usr/lib/iceape/components/libeditor.so
  /usr/lib/libedit.so.2.9
 
Please, what is wrong here?
Regards, 

-----------------
Serge Mechveliani
mechvel at botik.ru