One test segfaulted with openssl_1_0_x. openssl_1_1 seems to work fine.
As libevent still uses openssl_1_0_x we disable ssl support there to
avoid having to different ssl versions linked into tor. Longterm it
would be a better solution to upgrade openssl also in libevent. But this
would require more testing/time as we have many dependent packages of
libevent and we would probably need turn to on openssl 1.1 by default
globally. After all libevent is rather small compared to tor.
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