cmake: replace -ldl with ${CMAKE_DL_LIBS}

Needed for: #32

Author: ligurio

CMakeLists.txt

@@ -40,7 +40,7 @@ find_library(LPTHREAD pthread)
 
 add_executable(rp ${REPLICATOR_SRC})
 set_target_properties(rp PROPERTIES COMPILE_FLAGS "-std=c++11" LINK_FLAGS "-Wl,-s -Wl,--gc-sections" OUTPUT_NAME replicatord)
-target_link_libraries(rp rt dl tnt slave_a yaml-cpp ${LPTHREAD})
+target_link_libraries(rp rt tnt slave_a yaml-cpp ${LPTHREAD} ${CMAKE_DL_LIBS})
 
 install(TARGETS rp RUNTIME DESTINATION sbin)
 install(FILES replicatord.yml DESTINATION etc)