Warning about unrecognised pragma

[Simon Marlow]

Colin Paul Adams wrote:
>>>>>> "Colin" == Colin Paul Adams <colin at colina.demon.co.uk> writes:
> 
>     Colin> I am getting messages: Board_representation.hs:407:0:
>     Colin> Unrecognised pragma
> 
>     Colin> Board_representation.hs:442:0: Unrecognised pragma
> 
>     Colin> Board_representation.hs:458:0: Unrecognised pragma
> 
>     Colin> etc.
> 
>     Colin> (GHC 6.10.1)
> 
>     Colin> I looked into the documentation to see how to supress these
>     Colin> warnings (prefereably for the particular pragma concerned),
>     Colin> but I found (from 8.13):
> 
>     Colin> "any pragma encountered with an unrecognised word is (silently) ignored."
> 
> I didn't see any reactions to this.
> 
> Is it not a bug to emit the error message "Unrecognised pragma"?
> 
> If it isn't, then is the documentation sentence quoted above a
> documentation bug? And how do I trun off the message - it is very
> incovenient, as I get an awful lot of them, and it makes it hard for
> me to see real error messages.

There's a flag to turn off the warnings: -fno-warn-unrecognised-pragmas. 
Looks like we forgot to document it, though - thanks for highlighting it.

http://hackage.haskell.org/trac/ghc/ticket/3031

Cheers,
	Simon