* net/dbus.el (dbus-init-bus, dbus-call-method)

(dbus-call-method-asynchronously, dbus-send-signal)
(dbus-method-return-internal, dbus-method-error-internal)
Check, whether Emacs has been compiled with D-Bus support.

Fixes: debbugs:17508

lisp/ChangeLog

+2014-05-16  Michael Albinus  <michael.albinus@gmx.de>
+
+	* net/dbus.el (dbus-init-bus, dbus-call-method)
+	(dbus-call-method-asynchronously, dbus-send-signal)
+	(dbus-method-return-internal, dbus-method-error-internal)
+	Check, whether Emacs has been compiled with D-Bus support.  (Bug#17508)
+
 2014-05-14  Nicolas Richard  <theonewiththeevillook@yahoo.fr>
 	* emacs-lisp/eieio-opt.el (eieio-help-class): Correctly deal with

lisp/net/dbus.el

@@ -277,6 +277,8 @@ object is returned instead of a list containing this single Lisp object.
 
   => \"i686\""
 
+  (or (featurep 'dbusbind)
+      (signal 'dbus-error (list "Emacs not compiled with dbus support")))
   (or (memq bus '(:system :session)) (stringp bus)
       (signal 'wrong-type-argument (list 'keywordp bus)))
   (or (stringp service)
@@ -380,6 +382,8 @@ Example:
 
   -| i686"
 
+  (or (featurep 'dbusbind)
+      (signal 'dbus-error (list "Emacs not compiled with dbus support")))
   (or (memq bus '(:system :session)) (stringp bus)
       (signal 'wrong-type-argument (list 'keywordp bus)))
   (or (stringp service)
@@ -428,6 +432,8 @@ Example:
   :session nil \"/org/gnu/Emacs\" \"org.gnu.Emacs.FileManager\"
   \"FileModified\" \"/home/albinus/.emacs\")"
 
+  (or (featurep 'dbusbind)
+      (signal 'dbus-error (list "Emacs not compiled with dbus support")))
   (or (memq bus '(:system :session)) (stringp bus)
       (signal 'wrong-type-argument (list 'keywordp bus)))
   (or (null service) (stringp service)
@@ -446,6 +452,8 @@ Example:
   "Return for message SERIAL on the D-Bus BUS.
 This is an internal function, it shall not be used outside dbus.el."
 
+  (or (featurep 'dbusbind)
+      (signal 'dbus-error (list "Emacs not compiled with dbus support")))
   (or (memq bus '(:system :session)) (stringp bus)
       (signal 'wrong-type-argument (list 'keywordp bus)))
   (or (stringp service)
@@ -460,6 +468,8 @@ This is an internal function, it shall not be used outside dbus.el."
   "Return error message for message SERIAL on the D-Bus BUS.
 This is an internal function, it shall not be used outside dbus.el."
 
+  (or (featurep 'dbusbind)
+      (signal 'dbus-error (list "Emacs not compiled with dbus support")))
   (or (memq bus '(:system :session)) (stringp bus)
       (signal 'wrong-type-argument (list 'keywordp bus)))
   (or (stringp service)
@@ -1763,6 +1773,8 @@ connection used in the same Emacs process, like the one established by
 GTK+.  It should be used with care for at least the `:system' and
 `:session' buses, because other Emacs Lisp packages might already use
 this connection to those buses."
+  (or (featurep 'dbusbind)
+      (signal 'dbus-error (list "Emacs not compiled with dbus support")))
   (dbus--init-bus bus private)
   (dbus-register-signal
    bus nil dbus-path-local dbus-interface-local