[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 kencu):

 and another as well
 <https://github.com/scottlamb/libc/commit/79dfefa523ab417f398cf56f12f4ba084e7f3237>

 {{{
 $ nm -arch x86_64 /usr/lib/system/libsystem_c.dylib | grep fdopendir
 000000000007ea6d T _fdopendir
 000000000002ba97 T _fdopendir$INODE64

 $ nm -arch i386 /usr/lib/system/libsystem_c.dylib | grep fdopendir
 00082d1e T _fdopendir
 0002b528 T _fdopendir$INODE64$UNIX2003
 00082d1e T _fdopendir$UNIX2003
 }}}

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Ticket URL: <https://trac.macports.org/ticket/58935#comment:7>
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