(I can't resist the opportunity to extend this conversation to 3 Simons :-)
Simon Peyton-Jones wrote:
| OPTIONS_GHC pragmas allow warnings to be enabled or disabled for a
| particular file, but there are some limitations:
|
| * It doesn't override command-line settings (being tacked on the start,
| rather than the end, of the options lists, I believe)
I don't think this is right -- or if it is, it's a bug. The OPTIONS_GHC stuff
is supposed to override command-line opts
The Users Guide says:
NOTE: the contents of OPTIONS_GHC are prepended to the command-line
options, so you do have the ability to override OPTIONS_GHC settings via
the command line.
So GHC is at least behaving as documented.
| * It doesn't work on sections of the code, but rather the whole file.
True, and it'd be great to give more local pragma control -- a good feature
request. Someone might want to work out details of the programmer's eye view
and make a Trac feature request
There's a ticket for it:
http://hackage.haskell.org/trac/ghc/ticket/602
Cheers,
Simon
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