FW: ghci 7.4.1 no longer loading .o files?

[Simon Marlow]

The ticket tracking the fix is this: 
http://hackage.haskell.org/trac/ghc/ticket/3217

It was also reported as: http://hackage.haskell.org/trac/ghc/ticket/5778

Cheers,
	Simon


On 27/02/2012 14:36, Simon Peyton-Jones wrote:
> What's the status on this report?  Is something wrong?  Should we have a ticket?
>
> Simon
>
> -----Original Message-----
> From: glasgow-haskell-users-bounces at haskell.org [mailto:glasgow-haskell-users-bounces at haskell.org] On Behalf Of Evan Laforge
> Sent: 21 February 2012 04:34
> To: Eugene Crosser
> Cc: glasgow-haskell-users at haskell.org
> Subject: Re: ghci 7.4.1 no longer loading .o files?
>
> On Mon, Feb 20, 2012 at 1:14 AM, Eugene Crosser<crosser at average.org>  wrote:
>> On 02/20/2012 10:46 AM, Evan Laforge wrote:
>>> Is there something that changed in 7.4.1 that would cause it to decide
>>> to interpret .hs files instead of loading their .o files?  E.g.:
>>
>> I don't *know* but could this have anything to do with this?
>>
>> http://hackage.haskell.org/trac/ghc/ticket/5878
>
> Indeed it was, I initially thought it wasn't because I wasn't using
> flags for either, but then I remember ghci also picks up flags from
> ~/.ghci.  Turns out I was using -fno-monomorphism-restriction because
> that's convenient for ghci, but not compiling with that.
>
> I guess in the case where an extension changes the meaning of existing
> code it should be included in the fingerprint and make the .o not
> load.  But my impression is that most ExtensionFlags let compile code
> that wouldn't compile without the flag.  So shouldn't it be safe to
> exclude them from the fingerprint?
>
> Either way, it's a bit confusing when .ghci is slipping in flags that
> are handy for testing, because there's nothing that tells you *why*
> ghci won't load a particular .o file.
>
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