[MacPorts] #50270: digikam 4.9.0 fails to build

[MacPorts]

#50270: digikam 4.9.0 fails to build
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 Reporter:  till.paala@…  |      Owner:  macports-tickets@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.3.4
 Keywords:                |       Port:
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 Tried to install digikam on a OS X 10.11 installation.
 I seem to have opencv 2 installed
 port outdated gives among others: opencv    2.4.11_0 < 3.1.0_1
 so it seems 48081 doesn't apply to me.
 In the beginning I got a message about ecmconfig.cmake missing, but I
 could come around this by installing kde-extra-cmake-modules.
 Still have a failure in the compilation with following errors:

 :info:build /opt/local/include/lensfun/lensfun.h:2506:5: error: templates
 must have C++ linkage
 :info:build     template<typename T> static void ModifyColor_Vignetting_PA
 (
 :info:build     ^~~~~~~~~~~~~~~~~~~~
 :info:build /opt/local/include/lensfun/lensfun.h:2508:5: error: templates
 must have C++ linkage
 :info:build     template<typename T> static void
 ModifyColor_DeVignetting_PA (
 :info:build     ^~~~~~~~~~~~~~~~~~~~
 :info:build 2 errors generated.

 See log file attached.

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