[Haskell] Re: haddock not finding base lib docs -- $topdir ?

Conal Elliott conal at conal.net
Tue Dec 5 16:41:47 EST 2006

Thanks for the explanation & suggestions, Simon.  Your "other workaround"
worked for me: I replaced $topdir\\html with c:\\ghc\\ghc-6.6\\doc\\html in
my package.conf.  Note the *doc*, so a straightforward $topdir splice would
not do the trick.   Cheers,  - Conal

On 12/5/06, Simon Marlow <simonmarhaskell at gmail.com> wrote:
> Conal Elliott wrote:
> > I'm running haddock for the first time, via cabal.  I get the following
> > message when i do "runhaskell Setup.hs haddock" on monadLib:
> >
> >  Warning: cannot use package base-2.0:
> >     HTML directory $topdir\html\libraries\base does not exist.
> >
> > I do have c:/ghc/ghc-6.6/doc/html/libraries/base/.  Is there some way i
> > can let cabal know how to find it?  What is $topdir about?
> This is due to the way GHC is installed on Windows, the package database
> doesn't
> have hardcoded pathnames, the idea being that you can move your GHC
> anywhere in
> the filesystem and it will still work.
> Unfortunately this means that Haddock can't find the documentation for the
> packages.
> One workaround is to specify the paths by hand, using Haddock's
> --read-interface
> flag.  You're using Haddock via Cabal though, so that doesn't work too
> well.
> The other workaround is to find GHC's package.conf file and replace the
> string
> $topdir with the literal path ("c:/ghc/ghc-6.6" in your case - perhaps you
> have
> to append "/doc" for the haddock fields, though).
> I'll file a bug report against Cabal, we should really make this work.
> Cheers,
>         Simon
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