[Qt-creator] [Qt-embedded-interest] How to make the .dll files smaller?

[Rudenko Eugene]

Why not recommended ???
I hear first time about it.
Yes, there are some differences in static linking, for example  with  
plugins.
You have to static link Qt plugins too (add plugins += to .pro file  
and init plugins in code).
Other "bad thing" is that you'll be unable to reuse Qt libs: for  
example you have two Qt based applications, In case with shared  
linking you'll got that Qt libs will be loaded  in memory only once.  
It's nevermind how much applications use shared library (Qt libs in  
our case), this lib will load only once. But with static linking  
you'll got another appearance. Every Application will load it's own Qt  
libs. This case got overhead. But If in linux there exists software  
repositories , and system can guaranty to you that there are exists Qt  
libs. In windows and windows mobile there no such way. In any case you  
have to provide Qt libs with your application during deploy.
That's why static linking is better chois for deploying on Windows  
Mobile, I think.
In other cases there are no differences.

As for qconfig and "-config" flag to use custom configuration is other  
way, but using this way you need to clear understand what to leave and  
what to exclude from Qt. During Static linking all this things made  
for you by compiler (excluded all unused code during final linking ).

Yes I made this before, and didn't find any problems. Also you'll got  
faster loading speed, using static linking.




> Hi Rudenko Eugene,
>
> I heared of creating static link is not recommended.
> Do you have done it before?
>
> ————
> Thanks,
> David
>
> 2009/11/16 Rudenko Eugene <erule.biz at gmail.com>
>
> You can link with Qt libraries using static linking, As I now MS
> compiler  have better optimization for static linking then gcc.
> I think you'll got result size under 10Mb at all, with static linking.
> You can try.
> Also you can find Arora browser as example for building browser using
> Qt.
>
> Rudenko Eugene.
>
> > Hi all,
> >
> > I wanna create a browser for Windows Mobile based on Qt4.5.
> > Is there any method can be used to make the .dll files smaller?
> > For example: QtGui4 is 6.82M; QtCore4 is 2.02M; QtWebKit4 is 9.96M.
> >
> > --
> > Thanks!
> > David
> > _______________________________________________
> > Qt-embedded-interest mailing list
> > Qt-embedded-interest at trolltech.com
> > http://lists.trolltech.com/mailman/listinfo/qt-embedded-interest
>
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