How to teach Hadrian not to build ghctags and haddock

[Alp Mestanogullari]

One way would be to simply ask to build just what you need, e.g:

$ hadrian/build.sh --flavour=devel2 --freeze1 stage2:exe:ghc-bin

See https://gitlab.haskell.org/ghc/ghc/blob/master/hadrian/doc/make.md 
for more examples of that 'simple target' syntax. When no target is 
specified, hadrian will go ahead and build "everything".

On 01/02/2019 11:27, Roland Senn wrote:
> I switched to Hadrian. Normally I hack somewhere in the compiler. So I
> use "hadrian/build.sh --flavour=devel2 --freeze1" to quickly rebuild
> GHC after some little changes to the code.
>
> It normally builds
>   - library 'ghc' (Stage1, way v)
>   - program 'ghctags' (Stage1)
>   - program 'ghc-bin' (Stage1)
>   - program 'haddock' (Stage1)
>
> When hacking GHC, I never use ghctags or haddock. Building ghctags is
> very fast, 1-2 seconds. However building haddock takes 15 to 20
> seconds.
>
> Is there a way to teach hadrian not to build haddock and ghctags?
>
> Many thanks!
>     Roland
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-- 
Alp Mestanogullari, Haskell Consultant
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