[Nix-dev] Re: overriding gcc in dependencies.

[Eelco Dolstra]

Hi,

On 10/04/2010 06:02 PM, roconnor at theorem.ca wrote:

> On Mon, 4 Oct 2010, Yury G. Kudryashov wrote:
> 
>> roconnor at theorem.ca wrote:
>>
>>> openjade requires gcc33 to build.
>>> openjade also requires opensp to build.
>>>
>>> opensp doesn't require gcc33 to build.
>>>
>>> How do I get openjade to use a version of opensp that uses gcc33?
>> opensp = opensp.override { stdenv = ... };
> 
> Wow. Does every derivation make an override function?

Basically, yes.  The function "makeOverridable" adds an "override" function to
the result of a function call, and "callPackage" applies "makeOverridable".

-- 
Eelco Dolstra | http://www.st.ewi.tudelft.nl/~dolstra/