Compile Linux Kernel ,RTAI and LinuxCNC from Source Code

When running runtests, the following errors appear. Do these errors affect the running of linuxcnc?

Hi,Andy. When running runtests, the following errors appear. Do these errors affect the running of linuxcnc?

/home/bodor/Downloads/linuxcnc/tests/realtime-math

Looks worrying.

Which maths library did you build in to RTAI? I have tried both musl (as recommended by Paulo) and the {other one} recommended by Alec.

what is the meaning of "Which maths library did you build in to RTAI?"
This is the option that needs to be set when compiling RTAI? After I make menuconfig, there is no function library set in it. Which option is it? Can you describe it in more detail? Thanks

Have a look at RTAI/src.math/README.KLIBM

Depending on the version you are using it might not need any config.

If you are using the source from RTAI then it is a config option:



But if you are using the NTULINUX version it is (I think) built in.