[MacPorts] #61032: udunits2: error: implicitly declaring library function 'strdup' with type 'char *(const char *)' [-Werror, -Wimplicit-function-declaration]

[MacPorts]

#61032: udunits2: error: implicitly declaring library function 'strdup' with type
'char *(const char *)' [-Werror,-Wimplicit-function-declaration]
------------------------------+----------------------
  Reporter:  caseyyoungflesh  |      Owner:  tenomoto
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.6.3
Resolution:                   |   Keywords:
      Port:  udunits2         |
------------------------------+----------------------

Comment (by tenomoto):

 Thank for reporting. My student reported presumably the same problem, but
 I can't reproduce it. The common factor between my student's and your
 environment is the beta version of command line tools. I must confess that
 I'm to still used to a pull request in MacPorts. I know what it is and
 have even sent a few, but I'm not sure how pull requests fit with the old
 ticket-based workflow.

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Ticket URL: <https://trac.macports.org/ticket/61032#comment:5>
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