--- isomd5sum-1.2.3/Makefile	2018-04-11 01:30:32.000000000 +0800
+++ isomd5sum-1.2.3/Makefile.new	2023-02-18 19:45:13.543992122 +0800
@@ -4,7 +4,7 @@
 
 VERSION=1.2.3
 
-ifneq (,$(filter sparc64 ppc64 ppc64le x86_64 s390x aarch64 loongarch64,$(shell uname -m)))
+ifneq (,$(filter sparc64 ppc64 ppc64le x86_64 s390x aarch64 loongarch64 riscv64,$(shell uname -m)))
 LIBDIR = lib64
 else
 LIBDIR = lib