[Haskell-cafe] Backward compatibility

Alexander Solla alex.solla at gmail.com
Fri May 3 05:52:18 CEST 2013


On Thu, May 2, 2013 at 8:43 PM, Adrian May
<adrian.alexander.may at gmail.com>wrote:

>
>> Also, the Haskell Platform ./configure step checks which version of GHC
>> you have installed, and requires you to pass the option --enable-*
>> unsupported*-*ghc*-version in order to compile it with anything other
>> than GHC 7.4.2.
>>
>> Did you try an unsupported version?  And now you're complaining?
>>
>
> This is getting into minutia now, but yes I tried the unsupported flag and
> as I already explained it barfed about the prelude.
>

How is it minutia that you expect an unsupported version of GHC to work?

Yes, I try it out sometimes.  And if it works, great.  If not, too bad,
I'll wait until the next Haskell Platform.  I don't whine about it in
public.


> So I installed 7.4.2 from source but that confused cabal because my
> attempt to uninstall the ubuntu package with 7.4.1 in had failed with
> dependency-hell. Figuring out why (or even that) my packages weren't being
> seen was the puzzle I was referring to.
>

So the complaint is about Ubuntu?


> The point is that we wouldn't have to be talking about this at all if
> people didn't move the furniture around all the time.
>

That's not a very good point. It sounds as though you're the one who moved
furniture around, considering that you managed to mix up Ubuntu's GHC
package with your hand-built ones.
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