--- a/ppp.SlackBuild	2021-02-13 01:59:18.324924280 +0200
+++ b/ppp.SlackBuild	2021-02-13 01:59:47.536916707 +0200
@@ -50,6 +50,10 @@
 
 if [ "$ARCH" = "x86_64" ]; then
   LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "aarch64" ]; then
+  LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "riscv64" ]; then
+  LIBDIRSUFFIX="64"
 else
   LIBDIRSUFFIX=""
 fi