[R-gui] tcltk troubleshooting on OS X

[Seth Frey]

Adrian,

> Have you installed XQuartz? See
> https://cran.r-project.org/bin/macosx/

I'm not sure if I had or not, but I just installed it or reinstalled
it and reinstalled R on top of it.  That doesn't fix my problem,
RStudio.app and R.app both still hang.

In Terminal, capabilities is still showing X11 as FALSE.  Is that the
thing I should be trying to fix?  If tcltk depends on X11, why would
capabilities list it as TRUE if X11 is showing as FALSE?

Thanks again, and for the super quick reply.

best,
seth.