For CMake based projects, relative paths for build directory in build settings and working directory in run settings should be relative to Options>Projects>directory

I would have expected that a relative path being entered is relative to the one that you can enter into the Options>Projects>directory field, however, it is not. I work on Linux, and here a relative path for the build directory in build settings is determined from the ~/Documents directory. For the run settings,
its even more unclear; I have not been able to enter a relative path that works.

Another solution would be to use environment variables; this is already reported in bug 1999.