diff -Naur sc-7.16-old//Makefile sc-7.16/Makefile
--- sc-7.16-old//Makefile	2002-09-14 06:39:56.000000000 +0300
+++ sc-7.16/Makefile	2010-10-11 00:46:34.311691904 +0300
@@ -499,32 +499,34 @@
 	 $(MANDIR)/p$(name).$(MANEXT)
 
 $(EXDIR)/$(name): $(name)
-	cp $(name) $(EXDIR)
-	strip $(EXDIR)/$(name)
+	mkdir -p $(DESTDIR)/$(EXDIR)
+	cp $(name) $(DESTDIR)/$(EXDIR)
+	strip $(DESTDIR)/$(EXDIR)/$(name)
 
 $(EXDIR)/$(name)qref: $(name)qref
-	cp $(name)qref $(EXDIR)
-	strip $(EXDIR)/$(name)qref
+	cp $(name)qref $(DESTDIR)/$(EXDIR)
+	strip $(DESTDIR)/$(EXDIR)/$(name)qref
 
 $(EXDIR)/p$(name): p$(name)
-	cp p$(name) $(EXDIR)
-	strip $(EXDIR)/p$(name)
+	cp p$(name) $(DESTDIR)/$(EXDIR)
+	strip $(DESTDIR)/$(EXDIR)/p$(name)
 
 $(LIBDIR)/tutorial: tutorial.sc $(LIBDIR)
-	-mkdir -p $(LIBDIR)/plugins
-	cp tutorial.sc $(LIBDIR)/tutorial.$(name)
-	chmod $(MANMODE) $(LIBDIR)/tutorial.$(name)
+	mkdir -p $(DESTDIR)/$(LIBDIR)/plugins
+	cp tutorial.sc $(DESTDIR)/$(LIBDIR)/tutorial.$(name)
+	chmod $(MANMODE) $(DESTDIR)/$(LIBDIR)/tutorial.$(name)
 
 $(LIBDIR):
-	mkdir $(LIBDIR)
+	mkdir -p $(DESTDIR)/$(LIBDIR)
 
 $(MANDIR)/$(name).$(MANEXT): $(name).1
-	cp $(name).1 $(MANDIR)/$(name).$(MANEXT)
-	chmod $(MANMODE) $(MANDIR)/$(name).$(MANEXT)
+	mkdir -p $(DESTDIR)/$(MANDIR)
+	cp $(name).1 $(DESTDIR)/$(MANDIR)/$(name).$(MANEXT)
+	chmod $(MANMODE) $(DESTDIR)/$(MANDIR)/$(name).$(MANEXT)
 
 $(MANDIR)/p$(name).$(MANEXT): p$(name).1
-	cp p$(name).1 $(MANDIR)/p$(name).$(MANEXT)
-	chmod $(MANMODE) $(MANDIR)/p$(name).$(MANEXT)
+	cp p$(name).1 $(DESTDIR)/$(MANDIR)/p$(name).$(MANEXT)
+	chmod $(MANMODE) $(DESTDIR)/$(MANDIR)/p$(name).$(MANEXT)
 
 uninstall:
 	rm -f $(EXDIR)/$(name)