package build-depending on itself?

[Michael Weber <michaelw@debian.org>]

Hi!

Is it allowed for a package to build-depend on itself?

In my case, it is ghc4, which has the following:

Build-Depends: debhelper (>= 2.0.40), autoconf (>= 2.12), cpio,
 cygnus-stylesheets, ghc4 (>= 4.07), happy (>= 1.7)
                     ^^^^^^^^^^^^^^

So, you need an older version of ghc4 to build a current version,
which is actually true (it's a compiler).  I've received bug #83463,
saying this is bad.  

I'm afraid, there aren't many options to prevent this...  Any
suggestions?


Cheers,
Michael
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