From 7e766f9aaadaf46e36a35c13cd59f8a30b11b610 Mon Sep 17 00:00:00 2001
From: Ignas Anikevicius <anikevicius@gmail.com>
Date: Sun, 2 Jun 2013 17:25:20 +0200
Subject: [PATCH] Fix markdown.lua to work with LUA 5.2

The `setfenv` variable is unavailable in LUA 5.2, so call it conditionally.
---
 ldoc/markdown.lua | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ldoc/markdown.lua b/ldoc/markdown.lua
index bfe3a1b..a89b38e 100644
--- a/ldoc/markdown.lua
+++ b/ldoc/markdown.lua
@@ -121,7 +121,7 @@ THE SOFTWARE.
 local M = {}
 local MT = {__index = _G}
 setmetatable(M, MT)
-setfenv(1, M)
+if setfenv then setfenv(1, M) end -- if true, we are using LUA 5.1
 
 ----------------------------------------------------------------------
 -- Utility functions
@@ -1134,7 +1134,7 @@ end
 -- End of module
 ----------------------------------------------------------------------
 
-setfenv(1, _G)
+if setfenv then setfenv(1, _G) end
 M.lock(M)
 
 -- Expose markdown function to the world