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

On 09/18/2014 04:33 AM, Ivan Lazar Miljenovic wrote:

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 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. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Seems to work great, thanks. -- Mateusz K.