Pragma not recognised when wrapped in #ifdef

[Colin Adams]

Is there still a need for CPP now that Template Haskell exists?

2009/2/11 Simon Peyton-Jones <simonpj at microsoft.com>:
> | Perhaps CPP shouldn't be a pragma, just a command-line flag? It seems
> | to be the only one that affects/involves preprocessor(s). AFAICT, the
> | others all affect the haskell compiler stage.
>
> Yes, it does seem anomalous.  I suppose the motivation is that some modules might need CPP and some not, and it's convenient for the module itself to announce that fact.
>
> Simon
>
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