Thanks to Greg Troxel.
@ -152,6 +152,8 @@ if (UNIX)
set (MOSQ_LIBS ${MOSQ_LIBS} dl m)
elseif (${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD")
set (MOSQ_LIBS ${MOSQ_LIBS} m)
elseif (${CMAKE_SYSTEM_NAME} MATCHES "NetBSD")
elseif(QNX)
set(MOSQ_LIBS ${MOSQ_LIBS} m socket)
else(APPLE)