[tor-bugs] #29025 [Core Tor]: OpenSSL will not compile without engine support

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#29025: OpenSSL will not compile without engine support
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 Reporter:  Mangix            |          Owner:  (none)
     Type:  defect            |         Status:  new
 Priority:  Medium            |      Component:  Core Tor
  Version:  Tor: unspecified  |       Severity:  Normal
 Keywords:  openssl,engine    |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:
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 In OpenWrt, ENGINE support is disabled (supposed to be actually) and this
 makes compilation fail as currently in Tor, it is unconditionally disabled
 for ANDROID.

 This changes tor to check for OPENSSL_NO_ENGINE which also works with
 Android.

 The missing headers are for fixing offsetof and SHA512 being undefined.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29025>
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