[MacPorts] #58935: go @1.13: build fails on 10.9 and less

[MacPorts]

#58935: go @1.13: build fails on 10.9 and less
---------------------+-------------------------------
  Reporter:  kencu   |      Owner:  ci42
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  lion mountainlion
      Port:  go      |
---------------------+-------------------------------

Comment (by Ionic):

 Apply this and build it as usual:

 https://git.ionic.de/macports-
 overlay.git/patch/4911569912ca70a1065158e745440c8e43eb9d77?hp=1c2e7a6117ef6f8b45f27e7a4449fc62028d271c

 I haven't bumped up the revision in my repository, mostly because I guess
 we need a proper release with that code anyway.

 Before I create the PR though, I'd like to know that what is being
 generated matches the symbols of `opendir` on `i386` 10.4/Tiger. I guess
 that it will, though.

-- 
Ticket URL: <https://trac.macports.org/ticket/58935#comment:20>
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