[Pidgin] #7761: Fixes for libpurple to avoid segfaults

[Pidgin]

#7761: Fixes for libpurple to avoid segfaults
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 Reporter:  vadiml  |        Owner:  datallah 
     Type:  patch   |       Status:  new      
Milestone:          |    Component:  libpurple
  Version:  2.5.2   |   Resolution:           
 Keywords:          |  
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Comment(by deryni):

 What is the purpose of the nullptr patch? Are you initializing and
 uninitializing the prefs system multiple times in one run of your
 application?

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Ticket URL: <http://developer.pidgin.im/ticket/7761#comment:6>
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