afni.nimh.nih.gov

That isn't quite correct. The advantage in opening
an XQuartz terminal is that your PATH was fixed
by starting a new shell. Opening a new Terminal
window should have helped, too.

The install instructions say to open a new window
in step 4, so it is not repeated too much.

But in any case, we always like to see the full
system check output to know the details. Please
send that to afni.bootcamp whenever you want us
to evaluate it.

Thanks,

- rick