[Releasing] Updating the mingw version for 5.4 (CI/packaging)

[Heikkinen Jani]

>>> -----Original Message-----
>>> From: releasing-bounces+kai.koehne=digia.com at qt-project.org
>>> [mailto:releasing-bounces+kai.koehne=digia.com at qt-project.org] On
>>Behalf
>>> Of Massimo Belgrano
>>> Sent: Saturday, September 27, 2014 7:12 PM
>>> To: releasing at qt-project.org
>>> Subject: Re: [Releasing] Updating the mingw version for 5.4 (CI/packaging)
>>>
>>> Koehne Kai <Kai.Koehne at ...> writes:
...
>>Right, a 64 bit build of MinGW is an often requested feature. Maybe we
>>should consider finally providing packages for it too ...  I don't think we
>>should drop the 32 bit build though: 32 bit Windows installations are AFAIK
>>still pretty common.

Well, I don't want to increase amount of binary installers(especially windows ones) anymore. It is already now really huge effort needed to produce and test all these packages (both manual & automated) & so on we cannot add new ones without really compelling reasons ;) 32 bit mingw package is working both 32 bit & 64 bit windows versions but 64 bit not so in my opinion 32 bit version should be enough... 

Br,
Jani



>>-----Original Message-----
>>From: releasing-bounces+jani.heikkinen=digia.com at qt-project.org
>>[mailto:releasing-bounces+jani.heikkinen=digia.com at qt-project.org] On
>>Behalf Of Koehne Kai
>>Sent: 30. syyskuuta 2014 9:34
>>To: Massimo Belgrano; releasing at qt-project.org
>>Subject: Re: [Releasing] Updating the mingw version for 5.4 (CI/packaging)
>>
>>
>>
>>> -----Original Message-----
>>> From: releasing-bounces+kai.koehne=digia.com at qt-project.org
>>> [mailto:releasing-bounces+kai.koehne=digia.com at qt-project.org] On
>>Behalf
>>> Of Massimo Belgrano
>>> Sent: Saturday, September 27, 2014 7:12 PM
>>> To: releasing at qt-project.org
>>> Subject: Re: [Releasing] Updating the mingw version for 5.4 (CI/packaging)
>>>
>>> Koehne Kai <Kai.Koehne at ...> writes:
>>> >
>>> > Because it's not supported by gcc for 32 bit. We've the choice between
>>> dwarf and sjlj. We first tried SJLJ (in
>>> > 5.0.x releases) because it also works with native Windows stack frames
>>> in the exception unwind stack, but
>>> > that was carrying such a big overhead that we switched to dwarf in later
>>> releases.
>>> >
>>>
>>> Personally, I'm most interested in the x86 build with SEH exceptions
>>>
>>> afaik follow link is 4.9.1 with seh
>>>
>>> http://sourceforge.net/projects/mingw-
>>>
>>w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-
>>> builds/4.9.1/threads-win32/seh/
>>
>>Right, a 64 bit build of MinGW is an often requested feature. Maybe we
>>should consider finally providing packages for it too ...  I don't think we
>>should drop the 32 bit build though: 32 bit Windows installations are AFAIK
>>still pretty common.
>>
>>To come back to the original proposal: Are there any objections against
>>updating the _32 bit_ toolchain to i686-4.9.1-release-posix-dwarf-rt_v3-
>>rev1.7z ? If not I'd like to suggest to do the update ASAP.
>>
>>Regards
>>
>>
>>Kai
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