--- Makefile.bck	2018-06-12 23:21:49.258145269 -0400
+++ Makefile	2018-06-12 23:22:23.446097218 -0400
@@ -1,5 +1,6 @@
-CC     ?= cc
-PREFIX ?= /usr/local
+CC      ?= cc
+DESTDIR ?= /
+PREFIX  ?= /usr/local
 
 ifdef EXE
 	BINS = clib.exe clib-install.exe clib-search.exe
@@ -35,11 +36,11 @@
 	$(RM) $(OBJS)
 
 install: $(BINS)
-	$(MKDIR) $(PREFIX)/bin
-	$(foreach c, $(BINS), $(CP) $(c) $(PREFIX)/bin/$(c);)
+	$(MKDIR) $(DESTDIR)$(PREFIX)/bin
+	$(foreach c, $(BINS), $(CP) $(c) $(DESTDIR)$(PREFIX)/bin/$(c);)
 
 uninstall:
-	$(foreach c, $(BINS), $(RM) $(PREFIX)/bin/$(c);)
+	$(foreach c, $(BINS), $(RM) $(DESTDIR)$(PREFIX)/bin/$(c);)
 
 test:
 	@./test.sh