virt-manager: Enforce gobject introspection versions

This is needed with freebsd and opensuse at least. See:

https://bugzilla.suse.com/__show_bug.cgi?id=901869
http://www.redhat.com/archives/libvir-list/2014-December/msg00184.html

virt-manager

@@ -26,6 +26,7 @@ import signal
 import sys
 import traceback
 
+import gi
 from gi.repository import GObject
 from gi.repository import LibvirtGLib
 
@@ -42,7 +43,6 @@ warnings.simplefilter("ignore")
 
 try:
     # Avoid a deprecation warning about threads_init
-    import gi
     gi.check_version("3.9.1")
 except (ValueError, AttributeError):
     GObject.threads_init()
@@ -177,6 +177,7 @@ def main():
     origargv = sys.argv
     try:
         sys.argv = origargv[:1] + leftovers[:]
+        gi.require_version('Gtk', '3.0')
         from gi.repository import Gtk
         leftovers = sys.argv[1:]
 

virtManager/console.py

@@ -20,10 +20,13 @@
 # MA 02110-1301 USA.
 #
 
+import gi
 from gi.repository import GObject
 from gi.repository import Gtk
 from gi.repository import Gdk
+gi.require_version('GtkVnc', '2.0')
 from gi.repository import GtkVnc
+gi.require_version('SpiceClientGtk', '3.0')
 from gi.repository import SpiceClientGtk
 from gi.repository import SpiceClientGLib