[Development] [Mingw-w64-public] Fwd: Choosing a new MinGW for Qt 5

[lars.knoll at nokia.com]

On Sep 12, 2012, at 9:18 AM, ext Peter Kümmel <syntheticpp at gmx.net> wrote:

> On 11.09.2012 16:55, kai.koehne at nokia.com wrote:
>> 
>> There's nothing wrong with cross-compilation. But what we need first and foremost is a reliable, native MinGW environment for developing Qt applications, since the vast majority of Qt developers that develop for Windows also develop _on_ Windows. Now one can argue that Qt itself could still be compiled using a cross-compiler. But if we're not able to compile Qt ourselves with the native toolchain, how can we be sure other complex apps will work?
>> 
>> I haven't found a stock native MinGW 64 bit package yet that can compile Qt 5 + Qt Creator. Peter seems willing to experiment with a custom package, but I personally do not see this for 5.0 .
> 
> This is more a long term goal because atm no common way of cross compiling a custom mingw version is available (only 
> scripts "here and there").

Yes, nothing for 5.0.
> 
>> 
>> I think for 5.0 , we should therefore only put MinGW 32 bit gcc 4.7 as Tier 2 or (preferably) Tier 1 platform. Support for MinGW 64 bit would be on a best effort basis (Tier 3).
>> 
>> Now for 5.1 (that is, earliest May 2013) we should definitely reevaluate MinGW 64 bit as Tier 1 or Tier 2.
>> 
>> What do you all think? I certainly don't want to discourage any effort in getting MinGW-64 bit and Qt 5 to work, but rather want to be realistic in  what we should aim for with 5.0.
> 
> Depends on the release date of Qt5, if it happens in 3 months I think it is possible.
> But Qt5 should not be delayed only because of MinGW, most Windows developers don't care about mingw.

Let's get MinGW working for 32bit first. I wouldn't spend any effort on 64bit before we have 32bit working reliably. 

Cheers,
Lars

> 
>> 
>> Kai
>> 
>> PS: Added development at qt-project.org again to the thread.
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