2I guess that you check for MSDOS with `(eq system-type 'ms-dos)' from
Lisp and with `#ifdef MSDOS' from C.
But how do you check whether configure was invoked with `--without-x' from Lisp and from C?
#ifndef HAVE_X_WINDOWS
You can check window-system in Lisp (it is nil), but it doesn't tell if the running Emacs was configured with --without-x, only that it is currently running without X. I.e. it could be emacs -nw, or simply running without an X display. Does it make any difference?
Jan D.
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