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

[Nikos Chantziaras]

On 05/06/2010 08:14 PM, Thiago Macieira wrote:
> Em Quinta-feira 06 Maio 2010, às 17:09:55, Nikos Chantziaras escreveu:
>> 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.
>
> The most likely case is QtDBus. If you're on Linux, you might have KDE 4
> installed, which installs its Oxygen style plugin. That will trigger loading
> of QtDBus.
>
> Make sure you built that library too.

Btw, now that the programs runs, I can actually use lsof and see what it 
uses.  I've come across a bit of weirdness:

   lsof /usr/lib/qt4/*.4.6.2 | grep MyAppName

This results in:

   MyAppName [bla bla] /usr/lib64/qt4/libQtSvg.so.4.6.2

How come this works and I don't get a "Cannot mix incompatible Qt 
library" error?