--- postgresql-9.5.0/configure.in.orig   2018-02-21 03:23:25.335399998 +0100
+++ postgresql-9.5.0/configure.in        2018-02-21 03:28:24.392066743 +0100
@@ -1203,6 +1203,7 @@
 
 if test "$with_bonjour" = yes ; then
   AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
+  AC_CHECK_LIB(dns_sd, DNSServiceRegister, [BONJOUR_LIBS=-ldns_sd])
 dnl At some point we might add something like
 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
 dnl but right now, what that would mainly accomplish is to encourage
@@ -1210,6 +1211,7 @@
 dnl If you want to use Apple's own Bonjour code on another platform,
 dnl just add -ldns_sd to LIBS manually.
 fi
+AC_SUBST([BONJOUR_LIBS])
 
 # for contrib/uuid-ossp
 if test "$with_uuid" = bsd ; then
--- postgresql-9.5.0/src/backend/Makefile.orig	2016-01-04 22:29:34.000000000 +0100
+++ postgresql-9.5.0/src/backend/Makefile	2016-01-14 21:10:48.093976872 +0100
@@ -60,7 +60,7 @@
 ifneq ($(PORTNAME), aix)
 
 postgres: $(OBJS)
-	$(CC) $(CFLAGS) $(call expand_subsys,$^) $(LDFLAGS) $(LDFLAGS_EX) $(export_dynamic) $(LIBS) -o $@
+	$(CC) $(CFLAGS) $(call expand_subsys,$^) $(LDFLAGS) $(LDFLAGS_EX) $(export_dynamic) $(LIBS) $(BONJOUR_LIBS) -o $@
 
 endif
 endif
--- postgresql-9.5.0/src/Makefile.global.in.orig	2016-01-04 22:29:34.000000000 +0100
+++ postgresql-9.5.0/src/Makefile.global.in	2016-01-14 21:11:50.820640805 +0100
@@ -216,6 +216,7 @@
 PTHREAD_CFLAGS		= @PTHREAD_CFLAGS@
 PTHREAD_LIBS		= @PTHREAD_LIBS@
 
+BONJOUR_LIBS            = @BONJOUR_LIBS@
 
 ##########################################################################
 #