[Qt-interest] Running Qt 4.7 applications without Qt 4.6 interfering

[Nikos Chantziaras]

Thanks, but same result.  Btw, setting all those env vars isn't 
necessary since I use qmake which knows to use the correct paths.  It 
even sets the rpath linker flag to the correct location inside my home dir.

I believe some of the libs of Qt 4.7 is trying to dynamically load 
another Qt lib that isn't there, and resorts to locating it in /usr/lib. 
  But unfortunately, it doesn't say which library it tries to load... 
It only spits out the error message with no further context.


On 05/06/2010 06:00 PM, Ioan Calin Borcoman wrote:
> Check this: http://sourceforge.net/apps/trac/ibocator/wiki/BuildingWithLocalPackages
>
> It is very similar with what you need and it works great for me. If
> it's not working, pls leat me know.
>
> Cheers,
>
> Ionutz
>
> On Thu, May 6, 2010 at 5:55 PM, Nikos Chantziaras<realnc at arcor.de>  wrote:
>> On my Linux box, I've compiled the newly released Qt 4.7.0 Beta1 and
>> installed it in my home directory.  The system's Qt version (/usr/lib)
>> is Qt 4.6.2.  I've set my environment when building against 4.7 like this:
>>
>>    export PATH="/home/realnc/opt/qt/4.7.0/bin:$PATH"
>>    export LD_LIBRARY_PATH="/home/realnc/opt/qt/4.7.0/lib"
>>
>> When I try to run the app however, I get:
>>
>>    Cannot mix incompatible Qt library (version 0x40602) with
>>    this library (version 0x40700)
>>    Aborted
>>
>> When I move /usr/lib/qt4/ to somewhere else, then the application works
>> OK; no warnings or errors.  But I can't do that for real, or else KDE
>> will stop working.
>>
>> What can I do?
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