[Haskell-cafe] Specifying cabal sandbox flag for local package

[Vlatko Basic]

Hi Erik,

Just received the same solution a few minutes ago. It works.


vlatko

-------- Original Message  --------
Subject: Re: [Haskell-cafe] Specifying cabal sandbox flag for local package
From: Erik Hesselink <hesselink at gmail.com>
To: vlatko.basic at gmail.com
Cc: Rogan Creswick <creswick at gmail.com>, haskell-cafe <haskell-cafe at haskell.org>
Date: 04.07.2014 15:16

> You could try adding that constraint with the flag to the cabal.config
> in the sandbox. Something like:
>
> Constraint: snap-server +openssl
>
> I've put constraints there before, but I'm not sure if the flag syntax
> works in that spot.
>
> Erik
>
> On Fri, Jul 4, 2014 at 3:07 PM, Vlatko Basic <vlatko.basic at gmail.com> wrote:
>> Hi Rogan,
>>
>> Thanks for the tip. It works as you said. Good to know.
>>
>> However, this the same as manually installing the package with 'cabal
>> install'.
>> I'm trying to find a solution to bind the flag with the source permanently,
>> so when you specify it once, no need to mention it again.
>>
>> vlatko
>>
>> -------- Original Message --------
>> Subject: Re: [Haskell-cafe] Specifying cabal sandbox flag for local package
>> From: Rogan Creswick <creswick at gmail.com>
>> To: vlatko.basic at gmail.com
>> Cc: haskell-cafe <haskell-cafe at haskell.org>
>> Date: 03.07.2014 22:09
>>
>>
>> On Thu, Jul 3, 2014 at 9:47 AM, Vlatko Basic <vlatko.basic at gmail.com> wrote:
>>>
>>> Hello Cafe,
>>>
>>> I have a local forked package and added its path to sandboxed project with
>>>   'cabal sandbox add-source PATH'.
>>>
>>> However, to build that package I have to specify a flag to 'cabal
>>> install'.
>>> In other words I can't install it by
>>>    'cabal install --only-dependencies',
>>> but separately with
>>>    'cabal install PACKAGE -fFLAG'.
>>
>>
>> I believe you can use constraints to resolve this.
>>
>> eg:
>>
>> $ cabal install --only-dep --constraint="snap-server +openssl"
>>
>> to install snap-server (a dependency) with the openssl flag set.
>>
>> (Credit to Adam Foltzer for pointing this out to me yesterday,
>> coincidentally.)
>>
>> --Rogan
>>
>>
>>>
>>>
>>> Is there a way to tell cabal sandbox (or in project.cabal) to always use
>>> some flag(s) for compiling a (particular) package in local path?
>>>
>>>
>>> GHC 7.8.2, Cabal 1.20.0
>>>
>>>
>>> Best regards,
>>>
>>> vlatko
>>> _______________________________________________
>>> Haskell-Cafe mailing list
>>> Haskell-Cafe at haskell.org
>>> http://www.haskell.org/mailman/listinfo/haskell-cafe
>>
>>
>>
>>
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