Зависимость от freecad. Если есть способ её убрать напишите.
>>> Compiling source in /var/tmp/portage/dev-libs/OpenNI2-2.2_beta2-r1/work/OpenNI2-2.2-beta2 ...
make -j6 CC=aarch64-unknown-linux-gnu-gcc CXX=aarch64-unknown-linux-gnu-g++ ALLOW_WARNINGS=1 GLUT_SUPPORTED=1 ALL_WRAPPERS= JAVA_SAMPLES=
ThirdParty/PSCommon/BuildSystem/CommonDefs.mak:22: *** Can't determine host platform. Останов.