diff -ur acpica-unix-20121114.orig/generate/unix/Makefile.config acpica-unix-20121114/generate/unix/Makefile.config
--- acpica-unix-20121114.orig/generate/unix/Makefile.config	2012-12-05 16:11:48.000000000 -0800
+++ acpica-unix-20121114/generate/unix/Makefile.config	2012-12-05 16:12:31.000000000 -0800
@@ -57,7 +57,7 @@
 #
 COPYPROG = \
 	@mkdir -p ../$(BINDIR); \
-	cp --remove-destination $(PROG) ../$(BINDIR); \
+	cp $(PROG) ../$(BINDIR); \
 	echo "Copied $(PROG) to $(FINAL_PROG)";
 
 #