Linking error while building octovis

[DarkGeekMS]

Hello,

I'm trying to build octovis with QT5, however I get the following error :

[ 20%] Building CXX object CMakeFiles/octovis.dir/qrc_icons.cpp.o
[ 20%] Linking CXX executable ../bin/octovis
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libQGLViewer-qt5.so: undefined reference to `qt_version_tag@Qt_5.12'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/octovis.dir/build.make:359: ../bin/octovis] Error 1
make[1]: *** [CMakeFiles/Makefile2:108: CMakeFiles/octovis.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

I spent some time searching and trying to solve it, but no luck.

So, any help?

Thanks in advance.

[rlabs-oss]

HI,
I ran into the same issue and it was related to my anaconda install.
Removing the build folder followed by conda deactivate, mkdir build, cmake .. again and finally make solved this issue for me.

I also added set(CMAKE_CXX_FLAGS "-w") to the top level CMakeLists.txt to prevent the build failing with errors related to unused parameters in the code marked TODO. (Not before trying the no warn unused parameter which didnt help)