[Haskell-cafe] optional ghc-options based on GHC version?

[Ivan Lazar Miljenovic]

Something like this:


        if True
           Ghc-Options: -O -Wall

        if impl(ghc >= 7.8.1)
           Ghc-Options: -flate-dmd-anal

(I'm not sure if the "if True" hack is still needed, but at one stage it was.)

On 18 September 2014 12:38, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> wrote:
> Hi,
>
> I have a project here where GHC's option -flate-dmd-anal gets out some
> extra speed but the flag is not available on 7.6.3. How can I specify in
> the cabal file that I only want to pass this through when building with
> 7.8.3 or newer? It'd be a shame to not take advantage of the extra speed
> on 7.8.3 just because we want to support 7.6.3 too for a bit longer. I
> was unable to find the info online.
>
> Thanks.
>
> --
> Mateusz K.
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-- 
Ivan Lazar Miljenovic
Ivan.Miljenovic at gmail.com
http://IvanMiljenovic.wordpress.com