--- a/gdb.SlackBuild	2021-02-10 20:57:39.160319590 +0200
+++ b/gdb.SlackBuild	2021-02-10 20:58:01.892300804 +0200
@@ -48,6 +48,10 @@
 
 if [ "$ARCH" = "x86_64" ]; then
   LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "aarch64" ]; then
+  LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "riscv64" ]; then
+  LIBDIRSUFFIX="64"
 else
   LIBDIRSUFFIX=""
 fi