-URCU_MB=$(top_builddir)/urcu.c $(top_builddir)/urcu-pointer.c $(COMPAT)
-URCU_BP=$(top_builddir)/urcu-bp.c $(top_builddir)/urcu-pointer.c $(COMPAT)
-URCU_QSBR=$(top_builddir)/urcu-qsbr.c $(top_builddir)/urcu-pointer.c $(COMPAT)
+URCU_MB=$(top_srcdir)/urcu.c $(top_srcdir)/urcu-pointer.c $(COMPAT)
+URCU_BP=$(top_srcdir)/urcu-bp.c $(top_srcdir)/urcu-pointer.c $(COMPAT)
+URCU_QSBR=$(top_srcdir)/urcu-qsbr.c $(top_srcdir)/urcu-pointer.c $(COMPAT)