pg_passwd cleanup.

src/bin/pg_passwd/Makefile

@@ -3,18 +3,30 @@
 # Makefile
 #    Makefile for bin/pg_passwd
 #-------------------------------------------------------------------------
+
 SRCDIR= ../..
 include ../../Makefile.global
+
 OBJS= pg_passwd.o
+
 all: pg_passwd
+
 pg_passwd: $(OBJS)
 	$(CC) -o pg_passwd $(OBJS) $(LDFLAGS)
+
 install: pg_passwd
 	$(INSTALL) $(INSTL_EXE_OPTS) pg_passwd $(DESTDIR)$(BINDIR)/pg_passwd
+
+.PHONY: submake
+submake:
+	$(MAKE) -C $(LIBPQDIR) libpq.a
+
 depend dep:
 	$(CC) -MM $(INCLUDE_OPT) *.c >depend
+
 clean:
 	rm -f pg_passwd $(OBJS)
+
 ifeq (depend,$(wildcard depend))
 include depend
 endif