diff -r e2946dd2ea36 -r 96fc2f42b1e1 Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Fri Sep 20 23:14:44 2019 +0200
@@ -0,0 +1,22 @@
+# Sane Software Manifesto helper tools
+# Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
+#
+# 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, version 3.
+#
+# 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, see <https://www.gnu.org/licenses/>.
+
+validate:
+	xmllint --noout --schema ssm.xsd ssm.en.xml
+xhtml:
+	xsltproc --output ssm.en.xhtml --nonet ssm.xsl ssm.en.xml
+
+clean:
+	rm -f ssm.en.xhtml