[Pidgin] #7404: trivial chat-invited signal handler causes crash

[Pidgin]

#7404: trivial chat-invited signal handler causes crash
--------------------+-------------------------------------------------------
 Reporter:  jieryn  |        Owner:  deryni 
     Type:  defect  |       Status:  closed 
Milestone:  2.5.4   |    Component:  plugins
  Version:  2.5.2   |   Resolution:  fixed  
 Keywords:  perl    |  
--------------------+-------------------------------------------------------
Changes (by deryni at pidgin.im):

  * status:  new => closed
  * resolution:  => fixed
  * milestone:  => 2.5.4


Comment:

 (In [8b25c4f4ddcd70f0b21bc6bef1867d6df8b25075]):[[BR]]
 Apparently our use of va_list arguments in the perl signal callbacks
 doesn't
 work on x86_64 (and other architectures where a va_list is not a pointer
 but
 an array).

 Pull an autoconf macro from Glib svn to check whether va_lists are arrays
 and
 switch how we use them on that.

 I'm not at all sure this is a complete fix but it seems to fix the issue
 as
 currently reported.

 Fixes #7404

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Ticket URL: <http://developer.pidgin.im/ticket/7404#comment:8>
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