If you are using JS Reynaud's PPA I don't think you need to build from source. There are debug symbols available for nightly builds. See https://code.launchpad.net/~js-reynaud/+archive/ubuntu/ppa-kicad/+packages?batch=75&direction=backwards&memo=75.
If you are using JS Reynaud's PPA I don't think you need to build from source. There are debug symbols available for nightly builds. See https:/ /code.launchpad .net/~js- reynaud/ +archive/ ubuntu/ ppa-kicad/ +packages? batch=75& direction= backwards& memo=75.