[MacPorts] #50270: digikam @4.9.0 fails to build: lensfun.h:2506:5: error: templates must have C++ linkage

[MacPorts]

#50270: digikam @4.9.0 fails to build: lensfun.h:2506:5: error: templates must have
C++ linkage
---------------------------+-------------------
  Reporter:  till.paala@…  |      Owner:  jan@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.4
Resolution:                |   Keywords:
      Port:  digikam       |
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Comment (by till.paala@…):

 Replying to [comment:2 ryandesign@…]:
 > digikam depends on opencv. If opencv is outdated, MacPorts should
 upgrade it before attempting to build digikam. The log you attached is
 incomplete (missing lots of the beginning, up to somewhere in the build
 phase).

 Sorry, complete log attached, I didn't understand that Konsole on OS X
 shows only about 15 Mb of the file.

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Ticket URL: <https://trac.macports.org/ticket/50270#comment:5>
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