[Haskell-cafe] Re: Haskore dependency trouble

Simon Marlow simonmarhaskell at gmail.com
Wed Jul 12 10:28:55 EDT 2006

Bulat Ziganshin wrote:

> such feature was already requested by Robert Dockins <robdockins at fastmail.fm>
> in libraries list at June 8. He wrote:
> "This brings up a feature I have sometimes wanted from Cabal.  I'd
> like to be able to say the following: "Cabal, find and use package X  
> if it exists.  Furthermore, when CPPing source code, set a #define  
> HAS_PACKAGE_X so I can do conditional compilation based on the (non-) 
> avaliablility of package X".  Is this possible?  Difficult?  It seems  
> like a nice way to handle a number of problems, including platform- 
> dependencies (as here) and optional features with external
> dependencies."
> you can add your voice to the peoples requesting this feature (i need
> it, too)

I have some changes to Cabal partly finished that will address this.  Don't 
worry, it's coming.


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