[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: `xterm-mouse-mode' has a bogus Custom group

From: Eli Zaretskii
Subject: Re: `xterm-mouse-mode' has a bogus Custom group
Date: Wed, 13 Apr 2005 08:28:19 +0300

> Cc: address@hidden, address@hidden, address@hidden
> From: "Jan D." <address@hidden>
> Date: Wed, 13 Apr 2005 06:58:04 +0200
> > But how do you check whether configure was invoked with `--without-x'
> > from Lisp and from C?
> #ifndef HAVE_X_WINDOWS

Actually, I'd suggest


because the latter will catch non-X windowed versions (e.g.,
MS-Windows) as well.  Unless the code is in X-specific file, like
xfns.c, where non-X toolkits are a non-issue.

> 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?

Yes, it makes a difference: Emacs compiled with --without-x cannot
invoke code that calls X-specific primitives, because that would
signal errors complaining about void functions.  Emacs that does have
X support but runs with -nw will silently do nothing when such code is
invoked because (modulo bugs) these features are coded to do nothing
when the required graphic display facilities are not available.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]