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Paul Eggert authored
Also, the system-name variable is now obsolete. Fixes Bug#19438. * doc/lispref/os.texi (System Environment): * etc/NEWS: Document this. * doc/misc/efaq.texi: (Displaying the current file name in the titlebar): * lisp/desktop.el (desktop-save-frameset): * lisp/dnd.el (dnd-get-local-file-uri): * lisp/gnus/message.el (message-make-fqdn): * lisp/gnus/nnvirtual.el (nnvirtual-retrieve-headers) (nnvirtual-update-xref-header): * lisp/nxml/rng-uri.el (rng-uri-file-name-1): * lisp/org/org-clock.el (org-clock-save): * src/filelock.c (current_lock_owner): * src/xrdb.c (get_environ_db): * src/xterm.c (same_x_server): * src/xterm.c (x_term_init): Prefer (system-name) to system-name, and avoid naming locals 'system-name'. * doc/misc/smtpmail.texi (Server workarounds): Fix grammar. * lisp/startup.el (system-name): Now an obsolete variable. * src/editfns.c (cached_system_name): New static var. (init_and_cache_system_name): New function. (init_editfns, Fsystem_name): Use it. (syms_of_editfns): Initialize it and Vsystem_name to the same value. * src/sysdep.c [HAVE_SOCKETS]: Don't include <sys/socket.h>, <netdb.h>. (h_errno) [TRY_AGAIN && !HAVE_H_ERRNO]: Remove decl. (init_system_name) [HAVE_SOCKETS]: Don't canonicalize the name. Don't create a new string if the current value is already correct.
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