[tor-bugs] #17921 [Tor]: OPENSSL_V_SERIES(1, 1, 0) compat guard macro borks LibreSSL

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#17921: OPENSSL_V_SERIES(1,1,0) compat guard macro borks LibreSSL
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 Reporter:  cypherpunks       |          Owner:  nickm
     Type:  defect            |         Status:  needs_information
 Priority:  Medium            |      Milestone:  Tor: 0.2.8.x-final
Component:  Tor               |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:  libressl openssl  |  Actual Points:
Parent ID:                    |         Points:
  Sponsor:                    |
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Comment (by cypherpunks):

 Those are the only warnings/errors generated with --enable-gcc-warnings
 --enable-gcc-warnings-advisory --enable-expensive-hardening.
 I'm also working under the impression that some of the code still guarded
 by the plain macro, for example inside the functions
 {tor_tls,test_tortls}_get_buffer_sizes, are applicable to LibreSSL.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17921#comment:6>
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