[Agda] Debian packages

[Liyang HU]

Hi all,

For the few Debian / Ubuntu users out there (anyone?), I've made some pre-
compiled packages of Agda, along with a couple of dependencies which have 
not yet made it into Debian, as well as Nils's standard library. (Pre-
typechecked, with source; let me know if this doesn't work for you...) 
This may save you some faffing about with darcs and cabal and whatnot.

Instructions on how to add the repository, here:
    http://liyang.hu/debian.xhtml

Just install agda-mode, which should pull in libghc6-agda-dev & the rest. 
If you want the compiler / interactive mode as well, install agda.
Depending on how you've set up aptitude / your apt-frontend of choice, 
you may need to force it to install the latest libghc6-quickcheck-dev and/
or libghc6-haskell-src-dev.

Known issues: since absolute paths are used in the pre-type-checked 
standard library, they currently point to the wrong location. This 
shouldn't affect the typechecking of your own code, but goto-definition 
won't quite work. At least you have colour if you're just browsing 
through /usr/share/agda-stdlib ...

One (interim) solution would be to do the typechecking in the post-
installation script (on the user's machine.) I'll probably do this on the 
next update. However it does take a rather long time, even on a fairly 
fast machine. Maybe some sort of packaging system such that we won't need 
to use absolute paths?

Cheers,
/Liyang