[Pidgin] #13879: Add gcc and linker hardening options to configure.ac

[Pidgin]

#13879: Add gcc and linker hardening options to configure.ac
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 Reporter:  ioerror      |        Owner:  rekkanoryo  
     Type:  enhancement  |       Status:  new         
Milestone:               |    Component:  unclassified
  Version:  2.7.11       |   Resolution:              
 Keywords:  security     |  
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Comment(by dtauerbach):

 I think this patch is very important to incorporate and that these options
 are turned on by default. However, unfortunately as it stands this breaks
 the build on my system (Ubuntu 10.04: Linux ubuntu 2.6.32-32-generic
 #62-Ubuntu SMP Wed Apr 20 21:52:38 UTC 2011 x86_64 GNU/Linux). Pushing for
 this change is in keeping with a larger effort to improve security within
 the pidgin code base. There will be a separate email introducing the
 project sent to the pidgin development team, but in the mean time, I
 wanted to comment on this patch as a one-off.

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Ticket URL: <http://developer.pidgin.im/ticket/13879#comment:1>
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