From c9e972c9897eb52f6f07aeba510837e8a7151688 Mon Sep 17 00:00:00 2001
From: steve donovan <steve.j.donovan@gmail.com>
Date: Tue, 14 Jun 2011 15:04:14 +0200
Subject: [PATCH] spoke too soon. Now using _initial_ global state to determine
 whether to look in Lua global builtin functions

---
 ldoc.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ldoc.lua b/ldoc.lua
index 21cf685..abf6714 100644
--- a/ldoc.lua
+++ b/ldoc.lua
@@ -4,6 +4,9 @@
 -- easier customization options. C/C++ support is provided.
 -- Steve Donovan, 2011
 
+local globals = {}
+for k,v in pairs(_G) do globals[k] = v end
+
 require 'pl'
 
 local append = table.insert
@@ -447,7 +450,7 @@ local doc_path = ldoc_dir..'builtin/?.luadoc'
 
 -- ldoc -m is expecting a Lua package; this converts this to a file path
 if args.module then
-   if args.file:match '^%a+$' and _G[args.file] then
+   if args.file:match '^%a+$' and globals[args.file] then
       args.file = 'global.'..args.file
    end
    local fullpath,mod = tools.lookup_existing_module_or_function (args.file, doc_path)