From 3e2f9dc6b0a61c168d525b31ddbca73eebf528a3 Mon Sep 17 00:00:00 2001
From: tjeerd <tjeerd@yolt.nl>
Date: Wed, 24 Jul 2013 14:47:32 +0200
Subject: [PATCH] Fix version check

Not all Erlang versions are of equal length. Added clauses to handle this.
---
 m4/erlang-extra.m4 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/m4/erlang-extra.m4 b/m4/erlang-extra.m4
index c0716323e..4a7311bad 100644
--- a/m4/erlang-extra.m4
+++ b/m4/erlang-extra.m4
@@ -50,6 +50,10 @@ parse(Version) ->
 
 less_or_equal([[]], [[]]) ->
     true;
+less_or_equal([[]], _Any) ->
+    true;
+less_or_equal(_Any, [[]]) ->
+    false;
 less_or_equal([[Left| Rl]], [[Right| Rr]]) ->
     case {Left < Right, Left == Right} of
         {true, _}  ->