[344] Detect libanl in cmake.

src/CMakeLists.txt

@@ -82,6 +82,16 @@ add_executable(mosquitto ${MOSQ_SRCS})
 
 set (MOSQ_LIBS ${MOSQ_LIBS} ${OPENSSL_LIBRARIES})
 
+# Check for getaddrinfo_a
+include(CheckLibraryExists)
+check_library_exists(anl getaddrinfo_a  "" HAVE_GETADDRINFO_A)
+if (HAVE_GETADDRINFO_A)
+	add_definitions(-DHAVE_GETADDRINFO_A)
+	set (MOSQ_LIBS ${MOSQ_LIBS} anl)
+endif (HAVE_GETADDRINFO_A)
+
+
+
 if (UNIX)
 	if (APPLE)
 		set (MOSQ_LIBS ${MOSQ_LIBS} dl m)