[Development] QtCS: Long Term Release discussion

Fri Jun 19 17:51:41 CEST 2015

Hi Gunnar,

sadly i have to agree. I finally had the time to setup a Visual Studio 2013 
with the recent Platform Builder and sadly the generated SDK's still have
the Compiler Version 17.xx and says Visual Studio 2012. So the link indeed
gets us to wrong assumptions. It is a bit sad since there is a working arm 
compiler as you said.

But we can't force our users to try unsupported crude workarounds. So i hope
we can find a consenus on having Visual Studio 2012 as a baseline. As 
otherwise we would drop Embedded Compact 2013 support directly after 
introducing it.

Best regards
Björn Breitmeyer

-- 
Björn Breitmeyer | bjoern.breitmeyer at kdab.com | Senior Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Germany: +49-30-521325470, Sweden (HQ): +46-563-540090
KDAB - Qt Experts - Platform-independent software solutions 
Am Donnerstag, 18. Juni 2015, 12:50:27 schrieb Gunnar Roth:
> Hi Björn, i had the assumption you could mean that, but thats not a
> knowledge base article. I think you mean "Compact 2013 uses the Microsoft
> Visual Studio 2013 compiler,"? That part was also sent to me by a colleage
> from another department when discussing v8 usage( as this has vs2013
> depedancy according to wiki).  So we startet a MS Request to clear this
> issue. The answer was that the arcticle is wrong here.
>  
> Where should the newer stdc++ lib for wec 2013 come from? 
>  
> As a side note, we were able to compile ffmpeg for wec2013 with the cl
> v18.00 arm compiler as this has sufficient c99 support. But that is not
> supported and c++ relies heavily on its stdc++ lib where we dont have a
> fitting version. 
> Regards,
> Gunnar
>  
>  
>  
> Gesendet: Donnerstag, 18. Juni 2015 um 11:48 Uhr
> Von: "Björn Breitmeyer" <bjoern.breitmeyer at kdab.com>
> An: "Gunnar Roth" <gunnar.roth at gmx.de>
> Cc: development at qt-project.org, "Thiago Macieira"
> <thiago.macieira at intel.com> Betreff: Re: Aw: Re: [Development] QtCS: Long
> Term Release discussion That would be this one,
> 
> https://msdn.microsoft.com/en-us/library/gg154234.aspx
> 
> btw, i would assume the use of the newer libstdc++ if i got it right, as
> that one comes from the sdk too. But maybe i am wrong, didn't gave this a
> lot of time yet, which is why i couldn't test it yet.
> 
> --
> Björn Breitmeyer | bjoern.breitmeyer at kdab.com | Senior Software Engineer
> KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
> Germany: +49-30-521325470, Sweden (HQ): +46-563-540090
> KDAB - Qt Experts - Platform-independent software solutions
> 
> Am Donnerstag, 18. Juni 2015, 11:00:30 schrieb Gunnar Roth:
> > Hi Björn,
> > what is "the knowledgebase article"? Would you mind to share a link?
> > 
> > And even if there would be a v18.00 compiler, what about the standard c++
> > library (headers, libs and dlls) where do they come from? Or would then a
> > mix of newer compiler and older std c++ libary be used? That could be
> > quite
> > problematic haven such a mix leading to unpredictable behaviour from a
> > programmers view. Qt could then not say, vs2013 is the base, but only
> > vs2013 compiler with vs12012 std libary. Sound crazy...
> > Regards,
> > Gunnar
> > 
> > 
> > 
> > Gesendet: Donnerstag, 18. Juni 2015 um 10:41 Uhr
> > Von: "Björn Breitmeyer" <bjoern.breitmeyer at kdab.com>
> > An: development at qt-project.org
> > Cc: "Gunnar Roth" <gunnar.roth at gmx.de>, "Thiago Macieira"
> > <thiago.macieira at intel.com> Betreff: Re: [Development] QtCS: Long Term
> > Release discussion
> > Hello Gunnar,
> > 
> > i still hadn't time to verify this, but. There is a platform builder for
> > WEC2013, if you generate the SDk with that one it should have the Visual
> > Studio 2013 compiler, at least thats how i read the knowledgebase article.
> > Its on my TODO list to verify this, but i still didn't had the time to do
> > so.
> > 
> > Best regards
> > Björn Breitmeyer
> > 
> > --
> > Björn Breitmeyer | bjoern.breitmeyer at kdab.com | Senior Software Engineer
> > KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
> > Germany: +49-30-521325470, Sweden (HQ): +46-563-540090
> > KDAB - Qt Experts - Platform-independent software solutions
> > 
> > Am Donnerstag, 18. Juni 2015, 10:16:49 schrieb Gunnar Roth:
> > > Gesendet: Donnerstag, 18. Juni 2015 um 08:43 Uhr
> > > Von: "Thiago Macieira" <thiago.macieira at intel.com>
> > > An: development at qt-project.org
> > > Betreff: Re: [Development] QtCS: Long Term Release discussion
> > > 
> > > On Thursday 18 June 2015 08:23:52 Gunnar Roth wrote:
> > > > > Am 17.06.2015 um 22:35 schrieb Thiago Macieira
> > > > > 
> > > > > <thiago.macieira at intel.com>:
> > > >> > On Wednesday 17 June 2015 19:30:25 Gunnar Roth wrote:
> > > >> >> Yes that would make us (as a commercial user using a self made
> > > >> >> port
> > > >> >> of
> > > >> >> qt
> > > >> >> 5.4.1 to wec2013 ) very unhappy. This means 5.6 will be the last
> > > >> >> version
> > > >> >> wec2013 would be supported and you would go straight to making a
> > > >> >> back
> > > >> >> port
> > > >> >> very hard or even impossible.
> > > >> > 
> > > >> > WEC 2013 was never considered deprecated. The deprecation applies
> > > >> > to
> > > >> > WEC 7
> > > >> > only.
> > > >> 
> > > >> Well ok, but how does Lars Knoll’s sentence "we could make
> > > >> VS2013 the compiler baseline for 5.7.“ fit into this? As the only
> > > >> supported
> > > >> compiler for wec2013 is a cl with v 17.00 aka vs2012.
> > > >
> > > >Apparently VS2013 can also be used for WEC2013.
> > > 
> > > IDE: yes
> > > Compiler: No
> > > 
> > > This was recently confirmed to as by microsoft. The used compiler comes
> > > from the platfrombuilder wince800 tree, which is independent from the
> > > used IDE. The sdk wec2013 compiler form wec2013 qfe M08 has this
> > > version:
> > > Microsoft (R) C/C++ Optimizing Compiler Version 17.00.50728.6 for ARM
> > > 
> > > the vs2012 arm compiler ( which is meant for win pohne and winrt) has :
> > > Microsoft (R) C/C++ Optimizing Compiler Version 17.00.61030 for ARM
> > > 
> > > I don't think the possible usage of the vs2013 ide has any impact on qt
> > > development.
> > > Regards,
> > > Gunnar
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > Development mailing list
> > > Development at qt-project.org
> > > http://lists.qt-project.org/mailman/listinfo/development
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