Luarocks wrongly can't find a Lua directory

[Laurent FAILLIE <l_faillie@...>]

Hello,

Why does Luarock can't find /usr/lib64/lua/5.3 whereas it is existing ?

# ls -ld /usr/lib64/lua/5.3
drwxr-xr-x 2 root root 4096 28 mai   22:58 /usr/lib64/lua/5.3

# luarocks

...

Configuration:
   Lua:
      Version    : 5.3
      Interpreter: /usr/bin/lua5.3 (ok)
      LUA_DIR    : /usr (ok)
      LUA_BINDIR : /usr/bin (ok)
      LUA_INCDIR : /usr/include/lua5.3 (ok)
      LUA_LIBDIR : /usr/lib64/lua/5.3 (not found)
                   ****************************************
                   Use the command

                      luarocks config variables.LUA_LIBDIR <dir>

                   to fix the location
                   ****************************************

   Configuration files:
      System  : /etc/luarocks/config-5.3.lua (ok)
      User    : /root/.luarocks/config-5.3.lua (not found)

Do I have something missing ?

(I'm trying to fix Gentoo's Lua system install :) )

Thanks

Laurent