Pass library list to link in the correct place to avoid missing symbols.

--- tools/libxc/Makefile.orig	2011-01-10 11:13:56.365905921 +0100
+++ tools/libxc/Makefile	2011-01-10 11:14:12.261224745 +0100
@@ -174,7 +174,7 @@ xc_dom_bzimageloader.opic: CFLAGS += $(c
 
 libxenguest.so.$(MAJOR).$(MINOR): LDFLAGS += $(call zlib-options,l)
 libxenguest.so.$(MAJOR).$(MINOR): $(GUEST_PIC_OBJS) libxenctrl.so
-	$(CC) $(CFLAGS) $(LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxenguest.so.$(MAJOR) $(SHLIB_CFLAGS) -o $@ $(GUEST_PIC_OBJS) -lz -lxenctrl $(PTHREAD_LIBS)
+	$(CC) $(CFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxenguest.so.$(MAJOR) $(SHLIB_CFLAGS) -o $@ $(GUEST_PIC_OBJS) -lz -lxenctrl $(PTHREAD_LIBS) $(LDFLAGS)
 
 -include $(DEPS)