Fix the case when emacsclient is run on Emacs's controlling tty.

src/term.c (O_NOCTTY): Make sure it's defined.
(no_controlling_tty): New variable.
(init_initial_display, mark_ttys): Remove unused variable.
(term_init): Check that the given filename is a terminal device.
Dissociate the controlling terminal if we reopen it for other purposes.
(Reported by Dan Nicolaescu <dann at ics dot uci dot edu>.
(Fdelete_tty): Return nil.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-72

1 files changed, 21 insertions, 6 deletions

diff --git a/README.multi-tty b/README.multi-tty
index 06e069f8019..c86d69ac0dd 100644
--- a/README.multi-tty
+++ b/README.multi-tty
@@ -60,22 +60,23 @@ architectures, though.)  Both multiple tty device support and
 simultaneous X and tty frame support works fine.  Emacsclient has been
 extended to support opening a new terminal frame.
 
-
 Please let me know if you find any bugs in this branch.
 
+HOW TO COMPILE AND TEST
+-----------------------
+
 To try it out, compile and run the multi-tty branch with the following
 commands:
 
         mkdir +build
         cd +build
-        ../configure
+        ../configure <your favourite options>
         make bootstrap
         src/emacs -nw           # You can also try without -nw
         M-x server-start
 
 and then (from a shell prompt on another terminal) start emacsclient
 with
-
         lib-src/emacsclient -t /optional/file/names...
 
 You'll hopefully have two fully working, independent frames on
@@ -160,9 +161,12 @@ THANKS
 The following is an (incomplete) list of people who have contributed
 to the project by testing, bug reports, and suggestions.  Thanks!
 
-Robert J. Chassel <bob@rattlesnake.com>
-Romain Francoise <romain@orekobech.com>
-Ami Fischman <ami@fischman.org>
+Robert J. Chassel <bob at rattlesnake dot com>
+Romain Francoise <romain at orekobech dot com>
+Ami Fischman <ami at fischman dot org>
+Dan Nicolaescu <dann at ics dot uci dot edu>
+
+Richard Stallman was kind enough to review my patches.
 
 
 CHANGELOG
@@ -172,6 +176,10 @@ See arch logs.
 
 THINGS TO DO
 ------------
+** Dan Nicolaescu (dann at ics dot uci dot edu) suggests that -nw
+   should be added as an alias for -t in emacsclient.  Good idea.
+   (Alas, implementing this is not trivial, getopt_long does not seem
+   to support two-letter ``short'' options.)
 
 ** Robert J. Chassell reports:
 
@@ -634,4 +642,11 @@ DIARY OF CHANGES
 
    (Fixed.)
 
+
+-- Dan Nicolaescu noticed that starting emacsclient on the same
+   terminal device that is the controlling tty of the Emacs process
+   gives unexpected results.
+
+   (Fixed.)
+
 ;;; arch-tag: 8da1619e-2e79-41a8-9ac9-a0485daad17d