[Pidgin] #1344: fix for some build warnings

[Pidgin]

#1344: fix for some build warnings
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  Reporter:  o_sukhodolsky  |       Owner:  rlaager 
      Type:  patch          |      Status:  assigned
  Priority:  minor          |   Milestone:  2.0.2   
 Component:  pidgin (gtk)   |     Version:  2.0.1   
Resolution:                 |    Keywords:          
   Pending:  0              |  
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Comment (by rlaager at pidgin.im):

 (In [7523dcce0ac4ae98a74e3611efc953b8e0e20cde]) A patch from o_sukhodolsky
 to fix a couple warnings like this:

 dbus-bindings.c: In function 'purple_status_type_find_with_id_DBUS':
 dbus-bindings.c:6801: warning: passing argument 1 of
 'purple_dbus_pointer_to_id_error' discards qualifiers from pointer target
 type

 I changed the patch to use gconstpointer instead of const gpointer.

 References #1344

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Ticket URL: </ticket/1344#comment:35>
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