Hello, I tried to compile the rt-tests-1.9 on my system: Kernel - 5.4.70-rt40 Gcc : gcc cc (Ubuntu 10.2.0-5ubuntu1~20.04) 10.2.0 Error message: 'bld/cyclictest.o: `stderr@@GLIBC_2.2.5' can not be used when making a shared object; recompile with -fPIC Any idea ? Thanks Dieter Bieler