[tor-bugs] #10912 [Tor]: Add -fstack-protector-strong when building with gcc 4.9

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#10912: Add -fstack-protector-strong when building with gcc 4.9
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     Reporter:  nickm   |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  tor-relay hardening
Actual Points:          |  Parent ID:
       Points:          |
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Changes (by nickm):

 * milestone:  Tor: 0.2.6.x-final => Tor: 0.2.???


Comment:

 Actually, deferring harder since this only makes sense when we _aren't_
 doing -fstack-protector-all .  We can reopen if we find out that -fstack-
 protector-all is too expensive or something.  This could be part of a
 broader set of tickets along the line of "Turn on cheaper GCC hardening
 unconditionally" or something.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10912#comment:4>
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