To turn off any warning, simply give the corresponding -Wno-...

Quoting the manual: option on the command line. For backwards compatibility with GHC versions prior to 8.0, all these warnings can still be controlled with -f(no-)warn-* instead of -W(no-)*. On 24/07/2017 14:24, Baa wrote:

Ohh, pardon :) My error: seems that `-fno-warn-orphans` works. Not -W but -f :-)

...

Hi,

Maybe with -Wno-orphans

https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/using-warnin...

Regards, Sylvain

On 24/07/2017 13:58, Baa wrote:

...

Hello, Dear List!

I want to turn-off concreate warning (but to have all other, and possible to treat them as errors). This warning is about orphans instances. I tried:

-Wall -Werror -Wno-warn-orphans

also

-Wall -Werror -Wno-warn-warn-orphans

But GHC does not understand this option. How to achieve this?

-- Best regards, Paul _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

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