Properly add new inet_net_ntop file to libpq Makefile.

src/interfaces/libpq/Makefile

@@ -27,13 +27,14 @@ endif
 # Need to recompile any libpgport object files because we need these
 # object files to use the same compile flags as libpq.  If we used
 # the object files from libpgport, this would not be true on all
-# platforms.
+# platforms.  We filter some object files so we only use object
+# files configure says we need.
 LIBS := $(LIBS:-lpgport=)
 
 OBJS=	fe-auth.o fe-connect.o fe-exec.o fe-misc.o fe-print.o fe-lobj.o \
 	fe-protocol2.o fe-protocol3.o pqexpbuffer.o pqsignal.o fe-secure.o \
 	libpq-events.o \
-	md5.o ip.o wchar.o encnames.o noblock.o pgstrcasecmp.o thread.o \
+	md5.o ip.o wchar.o encnames.o inet_net_ntop.o noblock.o pgstrcasecmp.o thread.o \
 	$(filter crypt.o getaddrinfo.o inet_aton.o open.o snprintf.o strerror.o strlcpy.o win32error.o, $(LIBOBJS))
 
 ifeq ($(PORTNAME), cygwin)
@@ -80,7 +81,7 @@ backend_src = $(top_srcdir)/src/backend
 # For port modules, this only happens if configure decides the module
 # is needed (see filter hack in OBJS, above).
 
-crypt.c getaddrinfo.c inet_aton.c noblock.c open.c pgstrcasecmp.c snprintf.c strerror.c strlcpy.c thread.c win32error.c pgsleep.c: % : $(top_srcdir)/src/port/%
+crypt.c getaddrinfo.c inet_aton.c inet_net_ntop.c noblock.c open.c pgstrcasecmp.c snprintf.c strerror.c strlcpy.c thread.c win32error.c pgsleep.c: % : $(top_srcdir)/src/port/%
 	rm -f $@ && $(LN_S) $< .
 
 md5.c ip.c: % : $(backend_src)/libpq/%