pkg/52557: pkgsrc- libkface can't find opencv

[Simon Burge <simonb%NetBSD.org@localhost>]

>Number:         52557
>Category:       pkg
>Synopsis:       libkface can't find opencv
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Sep 19 10:45:00 +0000 2017
>Originator:     Simon Burge
>Release:        NetBSD 8.0_BETA (sources from 3 Sep 2017) and pkgsrc-2017Q2
>Organization:
Not really
>Environment:
System: NetBSD athlon.thistledown.com.au 8.0_BETA NetBSD 8.0_BETA (THOREAU) #2: Tue Sep 5 12:00:45 EST 2017 simonb%thoreau.thistledown.com.au@localhost:/NetBSD/src8/sys/arch/amd64/compile/THOREAU amd64
Architecture: x86_64
Machine: amd64
>Description:
	Trying to build libkface, the configure script can't find the
	(installed) opencv-3.2.0 package:

	===> Configuring for libkface-4.13.0nb5
	...
	-- First try at finding OpenCV...
	-- Could NOT find OpenCV (missing:  face) (found version "3.2.0")
	CMake Warning at cmake/modules/MacroOpenCV.cmake:27 (find_package):
	  Found package configuration file:

	    /usr/pkg/share/OpenCV/OpenCVConfig.cmake

	  but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be
	  NOT FOUND.
	Call Stack (most recent call first):
	  CMakeLists.txt:37 (DETECT_OPENCV)


	-- Great, found OpenCV on the first try.
	-- OpenCV Root directory is: /usr/pkg/share/OpenCV
	-- OpenCV: Found version 3.2.0 (required: 3.0.0)
	-- OpenCV headers: /usr/pkg/include;/usr/pkg/include/opencv
	-- OpenCV libs   : opencv_core;opencv_highgui;opencv_objdetect;opencv_imgproc
	CMake Error at CMakeLists.txt:121 (message):
	  LibKface cannot be compiled.


	-- Configuring incomplete, errors occurred!
	See also "/home/simonb/netbsd/obj/pkg/graphics/libkface/work.athlon/digikam-4.13.0/extra/libkface/CMakeFiles/CMakeOutput.log".
	See also "/home/simonb/netbsd/obj/pkg/graphics/libkface/work.athlon/digikam-4.13.0/extra/libkface/CMakeFiles/CMakeError.log".


>How-To-Repeat:
	cd ..../pkgsrc/graphics/libkface && make
>Fix:
	None given.