Index: cvpcb/CMakeLists.txt
--- cvpcb/CMakeLists.txt.orig
+++ cvpcb/CMakeLists.txt
@@ -85,7 +85,7 @@ target_link_libraries( cvpcb_kiface ${Boost_LIBRARIES}
 
 if( UNIX AND NOT APPLE )
     # -lrt must follow Boost
-    target_link_libraries( cvpcb_kiface rt )
+    target_link_libraries( cvpcb_kiface )
 endif()
 
 set_source_files_properties( cvpcb.cpp PROPERTIES
