Save copies of old simple Makefiles

eo/tutorial/Makefile.simple

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+SUBDIRS = Lesson1 Lesson2 Lesson3 Lesson4 Lesson5
+
+all:
+	for i in $(SUBDIRS); do cd $$i && $(MAKE) all; cd ..; done
+
+lesson1 : 
+	cd Lesson1; make
+
+lesson2 : 
+	cd Lesson2; make
+
+lesson3 : 
+	cd Lesson3; make
+
+lesson4 : 
+	cd Lesson4; make
+
+lesson5 : 
+	cd Lesson5; make
+
+#empty dist and distdir to let top-level 'make' do its job
+dist :
+
+distdir :
+
+check :
+
+clean:
+	for i in $(SUBDIRS); do cd $$i && $(MAKE) clean; cd ..; done