[MacPorts] #61278: convertlit @1.8: error: implicit declaration of function 'LZXinit' is invalid in C99 (was: convertlit build fails with Xcode12: error: implicit declaration of function 'LZXinit' is invalid in C99)

[MacPorts]

#61278: convertlit @1.8: error: implicit declaration of function 'LZXinit' is
invalid in C99
-------------------------+------------------------
  Reporter:  rlhamil     |      Owner:  ryandesign
      Type:  defect      |     Status:  accepted
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.3
Resolution:              |   Keywords:
      Port:  convertlit  |
-------------------------+------------------------
Changes (by ryandesign):

 * owner:  (none) => ryandesign
 * status:  new => accepted


Comment:

 Implicit declaration of functions is a new error in Xcode 12. We should
 fix it, but until then you can work around it by downgrading to Xcode 11
 and the Xcode 11 version of the command line tools.

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Ticket URL: <https://trac.macports.org/ticket/61278#comment:3>
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