Added recipes 'install' and 'uninstall' to Makefile.

Makefile

@@ -8,6 +8,8 @@ OBJDIR    := objects
 MAINOD    := $(OBJDIR)/main
 BINDIR    := build
 
+INSTDIR   := /usr/local/bin
+
 REFACTOR  := refactor.h
 
 HEADERS   := $(wildcard $(INCDIR)/*.h)
@@ -46,6 +48,23 @@ $(OBJDIR)/%.o: $(SRCDIR)/%.c $(HEADERS) | $(OBJDIR)
 $(MAINOD)/%.o: $(MAINDIR)/%.c $(HEADERS) | $(MAINOD)
 	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
 
+# $| evaluates to the order-only prerequisites, in this case: $(TARGETS)
+# The $(foreach ...) function will evaluate to a semicolon-separated list of 'cp <target> $instdir'
+# Putting this $(foreach ...) into the recipe means that its result
+# 	cp a /usr/local/bin; cp b /usr/local/bin;
+# will be run as a shell command.
+#
+# Shamelessly derived from:
+# https://stackoverflow.com/questions/7918511/make-execute-an-action-for-each-prerequisite
+
+install: | $(TARGETS)
+	@echo "Installing executables to $(INSTDIR)"
+	@$(foreach target, $|, cp -v $(target) $(INSTDIR);)
+
+uninstall: | $(TARGETS)
+	@echo "Removing executables from $(INSTDIR)"
+	$(foreach target, $(notdir $|), rm -v $(INSTDIR)/$(target);)
+
 clean:
 	$(RM) -rv $(BINDIR) $(OBJDIR)