[tor-bugs] #22413 [Core Tor/Tor]: build fails with libzstd-0.5.1

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#22413: build fails with libzstd-0.5.1
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 Reporter:  catalyst      |          Owner:
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.1.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by catalyst):

 Looking at the zstd history, it seems like `ZSTD_CStream` (which seems to
 be part of a streaming compression API that the consensus compression code
 uses) is new in zstd-1.1?  Also `ZSTD_VERSION_STRING` looks like it is new
 in 0.6.1.

 We should probably check for a minimum version (1.1?) at configure time.

 This is probably relevant to deciding what new compression libraries to
 support for Tor Browser builds.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22413#comment:2>
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