How can I pass flags to cabal?

[codygman]

For instance I want dev to be set for this part of my cabal file:

if flag(dev) || flag(library-only)
        cpp-options:   -DDEVELOPMENT
        ghc-options:   -Wall -fwarn-tabs -O0
    else
        ghc-options:   -Wall -fwarn-tabs -O2

[snoyberg]

See the --help for the --flag option, it's basically --flag packagename:(-)flagname.

[codygman]

--flag doesn't seem to work with stack exec --flag executable:-fdevelopment -- yesod devel. I think it works when using stack exec --flag executable:-fdevelopment build.

[snoyberg]

That's quite a different story. The question is really "how do I tell yesod devel to change flags," right? I'm not sure what you're trying to do though, yesod devel already sets the appropriate flags to work well with the scaffolding. Can you describe your goal a bit more clearly?

[codygman]

I am trying to get my compile cycle to be faster, there was a ghc option
like "no-code" or something I wanted to try.
On Jul 13, 2015 7:15 PM, "Michael Snoyman" [email protected] wrote:

That's quite a different story. The question is really "how do I tell yesod
devel to change flags," right? I'm not sure what you're trying to do
though, yesod devel already sets the appropriate flags to work well with
the scaffolding. Can you describe your goal a bit more clearly?

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[snoyberg]

It won't work with yesod sites anyway, since no-code can't be used when
you're using template Haskell.

On Mon, Jul 13, 2015, 6:24 PM codygman [email protected] wrote:

I am trying to get my compile cycle to be faster, there was a ghc option
like "no-code" or something I wanted to try.
On Jul 13, 2015 7:15 PM, "Michael Snoyman" [email protected]
wrote:

That's quite a different story. The question is really "how do I tell
yesod
devel to change flags," right? I'm not sure what you're trying to do
though, yesod devel already sets the appropriate flags to work well with
the scaffolding. Can you describe your goal a bit more clearly?

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#535 (comment)

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