Merge pull request #1623 from ImAlsoGreg:2.4-pkgconfig-dash-l

cmake/OpenCVGenPkgconfig.cmake

@@ -57,8 +57,17 @@ 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}")
+  foreach(extra_component ${OpenCV_EXTRA_COMPONENTS})
+
+    if(extra_component MATCHES "^-[lL]" OR extra_component MATCHES "[\\/]")
+      set(maybe_l_prefix "")
+    else()
+      set(maybe_l_prefix "-l")
+    endif()
+
+    set(OpenCV_LIB_COMPONENTS "${OpenCV_LIB_COMPONENTS} ${maybe_l_prefix}${extra_component}")
+
+  endforeach()
 endif()
 
 #generate the .pc file