Re: Build Mesa with a different toolchain version

[Thiago Jung Bauermann <bauermann@kolabnow.com>]

Em quarta-feira, 2 de junho de 2021, às 08:13:17 -03, Tobias Geerinckx-Rice 
escreveu:
> Two notes after a calming walk in the woods:

Always a good idea!

> Tobias Geerinckx-Rice 写道：
> 
> > no package has a ‘gcc-toolchain’ input.
> 
> Not true: 2 do.  I meant that ‘the toolchain’ used to build
> everything…
> 
> > It is not used internally by Guix.
> 
> …is not the "gcc-toolchain" package as such.

Thanks for the clarification.

> > (package (inherit gcc->gcc-10 mesa) …)
> 
> Just turn it around:
> 
>   (define-public mesa/gcc-10
>     (package
>       (inherit mesa)
>       (native-inputs
>         `(("gcc" ,gcc-10)
>           ,@(package-native-inputs mesa)))))

This worked (except for the mixed-toolchains issue):

(define-public mesa-10
  (package
    (inherit (package-with-c-toolchain mesa
                                       `(("toolchain" ,gcc-toolchain-10))))
    (name "mesa-10")))

-- 
Thanks,
Thiago