[MacPorts] #41928: harfbuzz: possibly missing dependency on libpng

[MacPorts]

#41928: harfbuzz: possibly missing dependency on libpng
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  Reporter:  mojca@…   |      Owner:  ryandesign@…
      Type:  defect    |     Status:  closed
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:  invalid   |   Keywords:
      Port:  harfbuzz  |
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Comment (by ryandesign@…):

 Replying to [comment:2 mojca@…]:
 > Is there any FAQ entry about how to properly avoid overlinking

 Not that I know of.

 > (possibly without having to rebuild every single package from source)?

 Overlinking affects ports using libtool .la files. Overlinking is cured by
 rebuilding the port, however you have to first rebuild its dependencies
 that use .la files. The simplest way to ensure you rebuild all ports in
 the correct order is to uninstall and reinstall all ports.

 > Last time I was told that all the packages on the buildbots would need
 to be rebuilt (more or less from scratch) for this to work 100% right.

 Yes I suggested we do this, but Josh thought it was a waste of time, so I
 guess we're not doing it. Therefore some packages on the packages server
 are probably still overlinked, and will remain so until whatever future
 time when they happen to get rebuilt in the right order. If you want to
 ensure you don't get overlinked binaries on your sytsem, don't use the
 pre-built binaries; build from source.

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Ticket URL: <https://trac.macports.org/ticket/41928#comment:3>
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