--- facedetect/meson.build.orig	2020-11-05 20:48:33 UTC
+++ facedetect/meson.build
@@ -1,6 +1,6 @@
 subproject = ('facedetect')
 add_languages('cpp')
-facedetect_dep = dependency('opencv', version : ['>= 2.3.0'], required : true)
+facedetect_dep = dependency('opencv4', version : ['>= 4.0.0'], required : true)
 executable('shotwell-facedetect',
            'shotwell-facedetect.cpp',
            dependencies : facedetect_dep,