[tor-bugs] #13242 [Tor]: Makefiles should be able to invoke trunnel

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#13242: Makefiles should be able to invoke trunnel
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 Reporter:  nickm                    |          Owner:
     Type:  enhancement              |         Status:  new
 Priority:  normal                   |      Milestone:  Tor: 0.2.6.x-final
Component:  Tor                      |        Version:
 Keywords:  tor-relay trunnel build  |  Actual Points:
Parent ID:                           |         Points:
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 I'd like the makefiles to be able to regenerate src/trunnel/*.[ch] from
 src/trunnel/*.trunnel as needed or on demand.  This is a little
 nontrivial, since we'd need the following:

   * A way to detect trunnel of the appropriate version.
   * Actual meaningful version numbers on trunnel.
   * A way to not require developers to have trunnel installed.
   * Support for out-of-tree builds (which can get really hard with
 generated code, and even harder with optionally generated code).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13242>
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