new ignore rule for compilation artifacts and makefile rule for installation

.gitignore

@@ -1,4 +1,4 @@
-build
+cache
-temp
 vgcore.*
-out
+libnoja.a
+noja

makefile

@@ -27,6 +27,11 @@ CLI_SUBDIR = cli
 LIB_FNAME = libnoja.a
 CLI_FNAME = noja
 
+# Where the build programs will be moved when
+# installation occurres.
+CLI_INSTALLDIR = /bin
+LIB_INSTALLDIR = /usr/local
+
 # Default programs
 CC = gcc
 AR = ar
@@ -81,6 +86,10 @@ $(LIB): $(LIB_OFILES)
 $(CLI): $(CLI_OFILES) $(LIB)
 	$(CC) $^ -o $@ $(LFLAGS)
 
+install: $(LIB) $(CLI)
+	sudo cp $(LIB) $(LIB_INSTALLDIR)
+	sudo cp $(CLI) $(CLI_INSTALLDIR)
+
 clean:
 	rm -rf $(OBJDIR)
 	rm  -f $(LIB)