[MacPorts] #59810: imlib2 @1.5.1 does not build on PPC Tiger because of Undefined symbols: "_strndup"

[MacPorts]

#59810: imlib2 @1.5.1 does not build on PPC Tiger because of Undefined symbols:
"_strndup"
------------------------+--------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:  tiger
      Port:  imlib2     |
------------------------+--------------------

Comment (by ballapete):

 {{{
 PortGroup       legacysupport 1.0
 }}}

 in `Portfile` lets the port build.

-- 
Ticket URL: <https://trac.macports.org/ticket/59810#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS