--- a/configure	Mon Oct 01 15:30:49 2018 +0100
+++ b/configure	Mon Oct 01 15:31:14 2018 +0100
@@ -403,7 +403,7 @@
    else
       suffixes="5.1 51 -5.1 -51 5.2 52 -5.2 -52 5.3 53 -5.3 -53"
    fi
-   for suffix in "" `echo $suffixes`
+   for suffix in "" $suffixes
    do
       search_interpreter "$suffix" && {
       lua_interp_found=yes