sudo make setuid problem

i do ./configure -uspace
(./configure -a ) not Working
then make
and then Sudo make setuid
it gives following error also even i am booted using rt kernal it says no realtime kernal found while ./configure -a
i am working on linuxcnc-plasmac

That's all good. No error messages there.

But to run your compiled version of LinuxCNC you probably need to type

. ../scripts/rip-environment
linuxcnc

To start your run-in-place compiled version.
(and it is dot space dot slash, or dot space dot dot slash, depending on where you are relative to the scripts directory when you type the command)

You ar up it is all fine

got to the build DIR (linuxcnc-plasmac )
in terminal
./scripts/rip-environment
linuxcnc and it shout work as you expected