Batch mode is broken.

Batch mode is broken.

[Alan Mackenzie]

Hi, Emacs!

With a newly built CVS Emacs, I tried the following command:

% ~/emacs/emacs/src/emacs -Q -batch -l 000tests.el -f do-all-tests

(That's the test suite for CC Mode, by the way.)

It returned this error message:

   Device 0 is not a termcap terminal device

, regardless of whether I tried the command in a Linux virtual terminal
or a terminal inside X-Windows.

The error also happened on an older CVS Emacs (maybe about 1 month old),
but I had to do "make maintainer-clean" to get the thing to build, so
I've no record of how old it was.

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: Batch mode is broken.

[Stefan Monnier]

> With a newly built CVS Emacs, I tried the following command:

> % ~/emacs/emacs/src/emacs -Q -batch -l 000tests.el -f do-all-tests

> (That's the test suite for CC Mode, by the way.)

> It returned this error message:

>    Device 0 is not a termcap terminal device

This comes from get_tty_terminal whose relevant callers are suspend-tty,
resume-tty, and send-string-to-terminal.  No idea why one of those would
be called.  Maybe send-string-to-terminal gets called because Emacs
tries to enable xterm-mouse-mode or xterm-modify-other-keys?

Emacs's batch mode is used to build Emacs, so clearly it works in
some cases.  Can you try and narrow down which part of 000tests.el
and/or do-all-tests trigger the problem?


        Stefan