*** lua.lua.orig	2017-10-22 20:12:23.000000000 +0800
--- lua.lua	2017-10-12 06:31:19.000000000 +0800
*************** function fs_lua.check_command_permission
*** 827,833 ****
     local ok = true
     local err = ""
     for _, dir in ipairs { cfg.rocks_dir, root_dir } do
!       if fs.exists(dir) and not fs.is_writable(dir) then
           ok = false
           err = "Your user does not have write permissions in " .. dir
           break
--- 827,833 ----
     local ok = true
     local err = ""
     for _, dir in ipairs { cfg.rocks_dir, root_dir } do
!       if fs.exists(dir) and not fs.is_writable(dir) and not fs.is_writable(dir .. "/bin") then
           ok = false
           err = "Your user does not have write permissions in " .. dir
           break