Use $(LIBS) properly

This patch makes sure the quota build system uses $(LIBS) where
appropriate, so that it can be used to link with additional libraries,
which is needed when linking statically.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Index: b/Makefile.in
===================================================================
--- a/Makefile.in
+++ b/Makefile.in
@@ -105,30 +105,40 @@
 	-$(INSTALL) -m $(DEF_MAN_MODE) *.8 $(ROOTDIR)$(mandir)/man8
 
 quotaon: quotaon.o quotaon_xfs.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 quotacheck: quotacheck.o quotacheck_v1.o quotacheck_v2.o quotaops.o $(LIBOBJS)
-	$(CC) $(LDFLAGS) -o $@ $^ $(EXT2LIBS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(EXT2LIBS) $(LIBS)
 
 quota: quota.o quotaops.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 quotasync: quotasync.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 quot: quot.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 repquota: repquota.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 warnquota: warnquota.o $(LIBOBJS)
-	$(CC) $(LDFLAGS) -o $@ $^ $(LDAPLIBS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LDAPLIBS) $(LIBS)
 
 quotastats: quotastats.o common.o pot.o
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 xqmstats: xqmstats.o common.o pot.o
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 edquota: edquota.o quotaops.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 setquota: setquota.o quotaops.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 convertquota: convertquota.o $(LIBOBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 rpc.rquotad: rquota_server.o rquota_svc.o svc_socket.o $(LIBOBJS)
 	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)