[Haskell-cafe] Cabal: disabling -fvia-C

[Jacek Generowicz]

On 2011 May 24, at 11:12, Jacek Generowicz wrote:

> I have found an {-# OPTION -fvia-C #-} deep inside the lambdabot  
> code in Plugin/Pl/Common.hs. How can I tell cabal install to ignore  
> this? Is there some command line option for doing so, or do I have  
> to edit the source code and somehow persuade cabal to use my hacked  
> version ?

The edited source code is ignored by cabal install. However, if you  
tar.gz the edited source code and replace the original tarball (making  
sure that you do *not* remove the untarred directory (it seems that  
you can remove its contents, but not the directory itself)), then  
cabal install works and lambdabot installs.

But I can't help feeling that this is not the smartest way to solve  
this problem. It looks like a random solution achieved by someone who  
doesn't understand what is going on.

Is there a more sensible way to do this?