--- Makefile	2021-01-15 17:56:59.000000000 +0800
+++ Makefile	2023-07-25 21:15:01.000000000 +0800
@@ -1,5 +1,5 @@
-prefix ?= .
-INSTALLDIR ?= $(prefix)/bin
+prefix ?= @PREFIX@
+INSTALLDIR ?= @DESTDIR@/bin
 INSTALL ?= install
 OS=$(shell uname -s | tr '[:upper:]' '[:lower:]')