forgetting SCC

[Daniel Fischer]

Am Sonntag 07 Februar 2010 13:06:14 schrieb Serge D. Mechveliani:
> I am sorry,
> indeed,  ghc-6.12.1  warns of  Unrecognised pragma  on  {-# "foo" #-}.
> I have just missed this warning.
>
> The next question is:  why it is a warning and not an error break?

Because it might be a valid pragma for some other implementation, so 
erroring on unrecognised pragmas is not a good option.
It would be nice if there was a commandline switch 

-ferror-unrecognised-pragmas

(similarly for other warnings, -ferror-incomplete-patterns, ...), but if 
your code is otherwise clean enough, something like

-Wall -Werror -fno-warn-type-defaults -fno-warn-simple-patterns

is convenient, too.