From c99a55f82aaefc7827734928cbbbe1b20e31376f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Valenti=CC=81n=20Adolfo=20Acosta=20Garci=CC=81a?=
 <valentin.acosta@jaraxa.net>
Date: Thu, 4 Jul 2019 14:55:43 +0200
Subject: [PATCH] Checked if persistent_term:get/2 is available.

That function was added in OTP 21.3 (erts 10.3): http://erlang.org/doc/man/persistent_term.html#get-2
---
 src/nklib_parse_trans_vsn.erl | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/nklib_parse_trans_vsn.erl b/src/nklib_parse_trans_vsn.erl
index bb61c6a..319a5e3 100644
--- a/src/nklib_parse_trans_vsn.erl
+++ b/src/nklib_parse_trans_vsn.erl
@@ -83,7 +83,7 @@ make_get_fun1() ->
 
 %% @private
 make_get_fun2() ->
-    Exp = case is_21_2() of
+    Exp = case is_21_3() of
         true ->
             "
                 do_config_get(Key, Default) ->
@@ -145,6 +145,15 @@ is_21_2() ->
     is_21() andalso erlang:system_info(version) >= "10.2.1".
 
 
+%% @private
+is_21_3() ->
+    % Erlang 21.0: 10.0.8
+    % Erlang 21.1: 10.1.8
+    % Erlang 21.2: 10.2.1
+    % Erlang 21.3: 10.3
+    is_21() andalso erlang:system_info(version) >= "10.3".
+
+
 %% @private
 forms_replace_fun(Name, Arity, Spec, Forms) ->
     forms_replace_fun(Forms, Name, Arity, Spec, []).