mrpt seems to expect an old jpeglib

[jlblancoc]

With MRPT 1.1.0 on a Linux-System with 32 bit architecture I get the following error message during runtime:

"Wrong JPEG library version: library is 62,caller expects 80"

The error appears when I try to save a 3d-Observation to a file.

CSensoryFrame SF;
cam.getNextObservation(obs,there_is_obs,hard_error);
CObservation3DRangeScanPtr obs_3d = (mrpt::slam::CObservation3DRangeScanPtr) obs.duplicateGetSmartPtr();
SF.insert(obs_3d);

mrpt_f << SF;

This code works well on a Linux-System with 64 bit architecture and MRPT 1.0.2.

There is no libjpeg.so.62 installed in the system. libjpeg.so is a link to libjpeg.so.8.0.2
During configuration the cmake-gui checks that libjpeg is installed.

The system libraries did not change after configuration and compilation of mrpt.

With ldd I see that my program uses the libjpeg.so.8.0.2 from the system.

I see that in the mrpt source directory there is a path

/libs/base/src/utils/jpeglib
wich seems to include the 62 version of jpeg.
Perhaps this is the clue?

Installing a 6.2 libjpeg packet parallel to the 8.0.2 does not help.
Reconfiguration and recompilation of MRPT does not help either.

As I am unable to login into the issue tracker I like to send you this informations via e-mail.

It would be great if you could help.

Best regards

Markus Wenzel

[jlblancoc]

Not reproducible.