From 8e553decb0f0532772b3f0421fbba52be054ea38 Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Mon, 26 Jul 2021 16:36:21 +0200
Subject: [PATCH] When vsn is an exact tag, append .0 to satisfy SemVer

---
 mix.exs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mix.exs b/mix.exs
index 9801b58f4..c33710b45 100644
--- a/mix.exs
+++ b/mix.exs
@@ -24,6 +24,9 @@ defmodule Ejabberd.MixProject do
     case config(:vsn) do
       :false -> "0.0.0" # ./configure wasn't run: vars.config not created
       '0.0' -> "0.0.0" # the full git repository wasn't downloaded
+      [_, _, ?., _, _] = x ->
+        head = String.replace(:erlang.list_to_binary(x), ~r/0+([0-9])/, "\\1")
+        <<head::binary, ".0">>
       vsn -> String.replace(:erlang.list_to_binary(vsn), ~r/0+([0-9])/, "\\1")
     end
   end