--- src/CMakeLists.txt.orig	2017-07-10 22:46:01 UTC
+++ src/CMakeLists.txt
@@ -77,6 +77,7 @@ if (WIN32 OR CYGWIN)
 endif (WIN32 OR CYGWIN)
 
 add_definitions (-DWITH_BROKER)
+add_definitions (-DWITH_THREADING)
 
 add_executable(mosquitto ${MOSQ_SRCS})
 
@@ -96,7 +97,7 @@ if (UNIX)
 	if (APPLE)
 		set (MOSQ_LIBS ${MOSQ_LIBS} dl m)
 	else (APPLE)
-		set (MOSQ_LIBS ${MOSQ_LIBS} dl m)
+		set (MOSQ_LIBS ${MOSQ_LIBS} m)
 		find_library(LIBRT rt)
 		if (LIBRT)
 			set (MOSQ_LIBS ${MOSQ_LIBS} rt)
@@ -141,6 +142,5 @@ if (${WITH_TLS} STREQUAL ON)
 endif (${WITH_TLS} STREQUAL ON)
 
 if (UNIX)
-	install(CODE "EXEC_PROGRAM(/sbin/ldconfig)")
 endif (UNIX)