tools/libs/store: don't use symbolic links for external files

Instead of using symbolic links to include files from xenstored use
the vpath directive and an include path.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Christian Lindig <christian.lindig@citrix.com>
Tested-by: Bertrand Marquis <bertrand.marquis@arm.com>
Acked-by: Ian Jackson <iwj@xenproject.org>

tools/libs/store/Makefile

@@ -21,12 +21,8 @@ CFLAGS += $(CFLAGS_libxentoolcore)
 CFLAGS += -DXEN_LIB_STORED="\"$(XEN_LIB_STORED)\""
 CFLAGS += -DXEN_RUN_STORED="\"$(XEN_RUN_STORED)\""
 
-LINK_FILES = xs_lib.c list.h utils.h
-
-$(LIB_OBJS): $(LINK_FILES)
-
-$(LINK_FILES):
-	ln -sf $(XEN_ROOT)/tools/xenstore/$@ $@
+vpath xs_lib.c $(XEN_ROOT)/tools/xenstore
+CFLAGS += -I $(XEN_ROOT)/tools/xenstore
 
 xs.opic: CFLAGS += -DUSE_PTHREAD
 ifeq ($(CONFIG_Linux),y)