$NetBSD: patch-src_backend_Makefile,v 1.1 2017/10/23 20:33:49 adam Exp $

--- src/backend/Makefile.orig	2017-10-02 21:09:15.000000000 +0000
+++ src/backend/Makefile
@@ -17,6 +17,10 @@ subdir = src/backend
 top_builddir = ../..
 include $(top_builddir)/src/Makefile.global
 
+CFLAGS+= $(DL_CFLAGS)
+LDFLAGS+= $(DL_LDFLAGS)
+LIBS+= $(DL_LIBS)
+
 SUBDIRS = access bootstrap catalog parser commands executor foreign lib libpq \
 	main nodes optimizer port postmaster regex replication rewrite \
 	statistics storage tcop tsearch utils $(top_builddir)/src/timezone
@@ -119,6 +123,8 @@ submake-errcodes: $(top_builddir)/src/in
 
 $(top_builddir)/src/port/libpgport_srv.a: | submake-libpgport
 
+$(top_builddir)/src/common/libpgcommon_srv.a: | submake-libpgport
+
 
 # The postgres.o target is needed by the rule in Makefile.global that
 # creates the exports file when MAKE_EXPORTS = true.