--- a/ncftp.SlackBuild	2021-02-13 01:50:59.925034567 +0200
+++ b/ncftp.SlackBuild	2021-02-13 01:51:21.713030524 +0200
@@ -52,6 +52,10 @@
   SLKCFLAGS="-O2 -fcommon"
 elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC -fcommon"
+elif [ "$ARCH" = "aarch64" ]; then
+  SLKCFLAGS="-O2 -fPIC -fcommon"
+elif [ "$ARCH" = "riscv64" ]; then
+  SLKCFLAGS="-O2 -fPIC -fcommon"
 else
   SLKCFLAGS="-O2 -fcommon"
 fi