Yarp: usbCameraRaw YARP device is not installed correctly in Linux

[traversaro]

Describe the bug
The usbCameraRaw plugin installed by the YARP option ENABLE_yarpmod_usbCamera does not work correctly, and it is not shown correctly by the yarpdev --list .

To Reproduce
Install YARP and enable the usbCamera device. Then, run yarpdev --list, you get:
~
[INFO] |yarp.dev.Drivers| Here are devices listed for your system:
Error: |yarp.os.YarpPluginSettings| Error while opening /home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so:
/home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so: undefined symbol: usbCameraRaw
Error: |yarp.os.YarpPluginSettings| Error while opening /home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so:
/home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so: undefined symbol: usbCameraRaw
Error: |yarp.os.YarpPluginSettings| Error while opening /home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so:
/home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so: undefined symbol: usbCameraRaw
Error: |yarp.os.YarpPluginSettings| Error while opening /home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so:
/home/runner/work/robotology-superbuild/robotology-superbuild/build/install/lib/yarp/yarp_usbCamera.so: undefined symbol: usbCameraRaw
Warning: |yarp.dev.Drivers| Wrong library name for plugin usbCameraRaw
~

Expected behavior
I would expect yarpdev --list to work correctly as it does for all the other YARP devices.

Screenshots

Configuration (please complete the following information):

• OS: Ubuntu 20.04
• yarp version: both 3.4.0, 3.4 branch and master
  
  
  
  • compiler: GCC 9.3
  
  

Additional context
I discovered this in https://github.com/robotology/robotology-superbuild/pull/521/checks?check_run_id=1425069998 .

Similar issues:

• https://github.com/robotology/wearables/issues/91

[drdanz]

Did you enable also ENABLE_yarpmod_usbCameraRaw? I don't know the difference, but they are two different plugins in the same library

[traversaro]

I added it in https://github.com/robotology/robotology-superbuild/pull/521/commits/7b9367a5a05f9118048a9fde0b2e56ad72c6df8f, let's see if it fixes the issue.

[traversaro]

Indeed, enabling ENABLE_yarpmod_usbCameraRaw everything works as expected. I guess it is a bit counter intuitive that if you enable ENABLE_yarpmod_usbCamera and not ENABLE_yarpmod_usbCameraRaw you get a non-working usbCameraRaw installed, but for sure that is another problem.