[Haskell-cafe] --disable-{executable-}profiling cabal-install-1.22.0.0 with ghc-7.6.3

[Ozgur Akgun]

I see now, thanks for the additional explanation.

Ozgur

On 13 January 2015 at 16:08, Johan Tibell <johan.tibell at gmail.com> wrote:

> Just to separate two things: cabal-install, the executable itself, must be
> compiled against a matching Cabal version. An external Setup executable can
> be compiled against an older version, if that's all that's available. One
> reason that only an old Cabal might be available is that you're using a
> cabal-install against some old GHC version you have installed, which
> shipped with an old Cabal.
>
> It's a more friendly behavior than saying "you must upgrade Cabal".
>
> On Tue, Jan 13, 2015 at 8:01 AM, Ozgur Akgun <ozgurakgun at gmail.com> wrote:
>
>>
>> On 13 January 2015 at 14:56, Johan Tibell <johan.tibell at gmail.com> wrote:
>>
>>> Chatted a bit with Duncan. cabal-install needs to be prepared to handle
>>> calling older Cabal lib versions. In this case cabal-install needs to check
>>> which Cabal install version was used (or rather, which of the available
>>> versions it wants to use) and then call the setup executable correctly (in
>>> this case not passing --disable-profiling to older Cabals, but instead
>>> using the old flag.)
>>>
>>
>> This sounds reasonable. There must be a reason since you are not doing so
>> already, but what is the reason for not requiring Cabal-1.22.0.0 for
>> cabal-install-1.22.0.0 in the first place?
>>
>>
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