--- Makefile-orig	2013-09-18 02:28:16.000000000 +0000
+++ Makefile	2013-09-18 02:28:30.000000000 +0000
@@ -2,4 +2,4 @@
 	$(MAKE) -f Makefile_unix
 	$(MAKE) -C ../oct -f Makefile_unix
 	mv ../oct/*.oct .
-	ls -1 *.oct | cut -d . -f 1 | xargs -i rm -f ../inst/comp/{}.m
+	ls -1 *.oct | cut -d . -f 1 | xargs -I{} rm -f ../inst/comp/{}.m
