Index: third_party/sfml/src/SFML/System/CMakeLists.txt
--- third_party/sfml/src/SFML/System/CMakeLists.txt.orig
+++ third_party/sfml/src/SFML/System/CMakeLists.txt
@@ -89,7 +89,6 @@ if(UNIX OR APPLE)
     target_link_libraries(sfml-system PRIVATE pthread)
 endif()
 if(UNIX AND NOT APPLE)
-    target_link_libraries(sfml-system PRIVATE rt)
 elseif(WIN32)
     target_link_libraries(sfml-system PRIVATE winmm)
 elseif(ANDROID)
