From 5495f3c270712c1eb3e0c235f77fc50a24a30374 Mon Sep 17 00:00:00 2001
From: Hisham Muhammad <hisham@gobolinux.org>
Date: Tue, 24 Mar 2015 01:02:11 -0300
Subject: A missing CWD returns "" for lfs.current_dir() on Ubuntu

---
 src/luarocks/fs/lua.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/luarocks/fs/lua.lua b/src/luarocks/fs/lua.lua
index c3f92bda..48db4a0d 100644
--- a/src/luarocks/fs/lua.lua
+++ b/src/luarocks/fs/lua.lua
@@ -208,7 +208,7 @@ end
 -- a crossplatform way.
 function fs_lua.change_dir_to_root()
    local current = lfs.currentdir()
-   if not current then
+   if not current or current == "" then
       return false
    end
    table.insert(dir_stack, current)
-- 
cgit v1.2.3-55-g6feb