[MacPorts] #59207: perl5.28 build fails on Catalina with MacPorts 2.6.1 and Xcode 11.1

[MacPorts]

#59207: perl5.28 build fails on Catalina with MacPorts 2.6.1 and Xcode 11.1
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  Reporter:  nombak    |      Owner:  mojca
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  catalina
      Port:  perl5.28  |
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Comment (by ktoksoz):

 I can confirm that it works when building with use_parallel_build=no flag.
 But you must first clean the previous build like @alexanha said.
 If you have any files left in the installation directory from previous
 install or you add some files manually, build completes but installation
 does not.
 In my case, i had to manually delete some dylibs. Cleaning the build does
 not delete these manually added files.

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Ticket URL: <https://trac.macports.org/ticket/59207#comment:20>
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