[MacPorts] #61632: mpack @1.6: error: multiple implicit declarations are invalid in C99 (was: mpack: error: multiple implicit declarations are invalid in C99)

[MacPorts]

#61632: mpack @1.6: error: multiple implicit declarations are invalid in C99
---------------------+-----------------------------
  Reporter:  arrigo  |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.6.4
Resolution:          |   Keywords:  bigsur catalina
      Port:  mpack   |
---------------------+-----------------------------
Changes (by ryandesign):

 * keywords:   => bigsur catalina


Comment:

 This is a well-known problem when using Xcode 12 or later.

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Ticket URL: <https://trac.macports.org/ticket/61632#comment:2>
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