diff --git a/helpers/make-z88dk b/helpers/make-z88dk
new file mode 100644
index 0000000000000000000000000000000000000000..bf4ca222e873f08f4092e659bacfd22183ac7f52
--- /dev/null
+++ b/helpers/make-z88dk
@@ -0,0 +1,32 @@
+#!/bin/sh
+#
+#    Copyright (C) 2015  Legimet <legimet.calc@gmail.com>
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software
+#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+
+VERSION=1
+
+. ./config
+
+# The test suite uses files with a noncommercial restriction, and a keyboard
+# driver from ozcustomisr.asm also has one, but these files are unrequired
+# See http://www.z88dk.org/forum/viewtopic.php?pid=8504
+rm -rf test libsrc/oz/ozinterrupt/ozcustomisr.asm
+
+changelog "Remove unrequired nonfree files"
+
+compile
+