keep a copy of generated files in repository

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc-src/Exercises/2000/Makefile	Sat Mar 01 16:45:51 2003 +0100
@@ -0,0 +1,20 @@
+#
+# $Id$
+#
+# IsaMakefile for PSV2000
+#
+
+SESSIONS = a1
+
+## targets
+
+default: sessions 
+sessions: $(SESSIONS)
+
+
+## a1
+
+a1: a1/generated/session.tex
+
+a1/generated/session.tex: a1/ROOT.ML a1/*.thy 
+	isatool make