From 60c26f8f1ec31c3b10f026ce40779c7b412a7667 Mon Sep 17 00:00:00 2001
From: Georgy Mironov <george.mironov@synesis.ru>
Date: Thu, 4 Oct 2018 13:48:40 +0300
Subject: [PATCH] Fix install with external protobuf

---
 cmake/OpenCVFindProtobuf.cmake | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cmake/OpenCVFindProtobuf.cmake b/cmake/OpenCVFindProtobuf.cmake
index 289fa60641..98e1ce2406 100644
--- a/cmake/OpenCVFindProtobuf.cmake
+++ b/cmake/OpenCVFindProtobuf.cmake
@@ -44,8 +44,10 @@ else()
 
   if(Protobuf_FOUND)
     if(TARGET protobuf::libprotobuf)
-      add_library(libprotobuf INTERFACE)
-      target_link_libraries(libprotobuf INTERFACE protobuf::libprotobuf)
+      add_library(libprotobuf INTERFACE IMPORTED)
+      set_target_properties(libprotobuf PROPERTIES
+        INTERFACE_LINK_LIBRARIES protobuf::libprotobuf
+      )
     else()
       add_library(libprotobuf UNKNOWN IMPORTED)
       set_target_properties(libprotobuf PROPERTIES