Portability fixes (now it compiles & runs fine on Solaris).
lib-src/emacsclient.c: Removed tty proxy kludge. Emacs should just use the same terminal as emacsclient. (ec_get_tty, ec_set_tty, master, pty_name, old_tty, tty, old_tty_valid) (tty_erase_char, quit_char, flow_control, meta_key, _sobuf, init_tty) (window_change, reset_tty, init_pty, copy_from_to) (pty_conversation): Removed. (window_change_signal): Just forward the signal to Emacs, don't do anything else. (init_signals): Don't set handlers for SIGHUP & SIGINT. (strprefix): New function. (main): Don't touch the terminal, simply tell its name to Emacs. lisp/server.el (server-frames): Changed name and semantics to server-ttys. (server-tty-live-p): New function. (server-sentinel): Delete the whole tty, not just the frame. (server-handle-delete-frame): Removed. (server-handle-delete-tty): New function. Close the client connection if the tty is deleted. (server-start): Clean up server-ttys, not server-frames. Set up delete-tty-after-functions. (server-process-filter): Set up server-ttys, not server-frames. Updated protocol for sending our pid to emacsclient. (server-buffer-done): Don't delete the client process directly, delete the tty instead, and rely on the delete-tty hook to close the connection. Otherwise the terminal could be left in a bad state. src/cm.c (cmputc): Don't abort on write errors. src/indent.c: #include <stdio.h>, for termchar.h. src/window.c: Ditto. src/xfaces.c: Ditto. src/sysdep.c (init_sigio, reset_sigio, request_sigio)[!SIGIO] (unrequest_sigio)[!SIGIO]: If SIGIO is not supported, don't do anything. (For Solaris.) (init_sys_modes): Moved tty_set_terminal_modes call back to here, disable window system check. (reset_sys_modes): Reset the terminal even if X is running. src/term.c (Vdelete_tty_after_functions): New variable. (syms_of_term): Initialize it. (Fdelete_tty): Updated docs. (delete_tty): Run delete-tty-after-functions. (term_init): Removed tty_set_terminal_modes call. git-archimport-id: email@example.com/emacs--multi-tty--0--patch-35
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