Added -l prefix to EXTRA_COMPONENTS when generating pkg-config file

cmake/OpenCVGenPkgconfig.cmake

@@ -57,8 +57,11 @@ endforeach()
 # add extra dependencies required for OpenCV
 set(OpenCV_LIB_COMPONENTS ${OpenCV_LIB_COMPONENTS_})
 if(OpenCV_EXTRA_COMPONENTS)
-  string(REPLACE ";" " " OpenCV_EXTRA_COMPONENTS "${OpenCV_EXTRA_COMPONENTS}")
-  set(OpenCV_LIB_COMPONENTS "${OpenCV_LIB_COMPONENTS} ${OpenCV_EXTRA_COMPONENTS}")
+  set(OpenCV_DASH_L_EXTRA_COMPONENTS "")
+  foreach(ExtraComponent ${OpenCV_EXTRA_COMPONENTS})
+    set(OpenCV_DASH_L_EXTRA_COMPONENTS "${OpenCV_DASH_L_EXTRA_COMPONENTS} -l${ExtraComponent}")
+  endforeach()
+  set(OpenCV_LIB_COMPONENTS "${OpenCV_LIB_COMPONENTS} ${OpenCV_DASH_L_EXTRA_COMPONENTS}")
 endif()
 
 #generate the .pc file