Qt library dependecy under Ubuntu

Asked Aug 11 '14 at 22:55

Active Aug 11 '14 at 22:55

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I have a Qt app with OpenMesh dependency. I built the OpenMesh library from source:

cmake ...
make
make install

It installed to the /usr/local/lib/OpenMesh folder:

libOpenMeshCored.a
libOpenMeshCored.so.3.2
libOpenMeshToolsd.so
libOpenMeshCored.so 
libOpenMeshToolsd.a   
libOpenMeshToolsd.so.3.2

The libs are included into the Qt project.

LIBS +=          -L/usr/local/lib/OpenMesh/ \
                 -lOpenMeshCored \
                 -lOpenMeshToolsd

When I start the application from Qt Creator, it works fine. But if I start the built executable from command line, it gives back the following error:

error while loading shared libraries: libOpenMeshCored.so.3.2: cannot open shared object file: No such file or directory

So why does it know about, where to find the shared objects, when I start it from Qt, and why not, when I start without it?

And how can I fix this problem?

asked Aug 11 '14 at 22:55

András Kovács

When you say that you're starting it from Qt, do you mean Qt creator? – davepmiller Aug 11 '14 at 23:04
possible duplicate of [Cant use shared libraries in Qt project](http://stackoverflow.com/questions/16071409/cant-use-shared-libraries-in-qt-project) – RA. Aug 11 '14 at 23:56
It would be helpful to know, what exactly happens when I start it from Qt Creator, in aspect of shared objects. – András Kovács Aug 12 '14 at 00:08
2

Did you run ldconfig after installing OpenMesh? – MrEricSir Aug 12 '14 at 05:43
The ldconfig solved the problem, thanks. – András Kovács Aug 12 '14 at 11:39

Qt library dependecy under Ubuntu

0 Answers0