recompile xemc.cc from command line

Hello,

I would like to recompile xemc.cc from command line.
Obviously I can’t use halcompile. I tried to find a command in make file but I was not able to find something.
Great thanks

I have not found a way to compile a single file in LinuxCNC (which is not to say that there isn't a way that I haven't found)

It's probably easiest to recompile a run-in-place version of LinuxCNC, test with that, and then move the object file over when it is working.