diff --git a/cmake/ModuleCompileOptions.cmake b/cmake/ModuleCompileOptions.cmake
index a763b89..9df3e39 100644
--- a/cmake/ModuleCompileOptions.cmake
+++ b/cmake/ModuleCompileOptions.cmake
@@ -189,7 +189,7 @@ macro(ModuleSetCompileOptions)
     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
     SET(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS}")
 
-    #LINK_LIBRARIES(rt dl m)
+    LINK_LIBRARIES(m)
     FIND_PROGRAM(CCACHE_FOUND ccache)
     IF(CCACHE_FOUND)
       SET_PROPERTY(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)