1 files changed, 9 insertions, 0 deletions
diff --git a/mix.exs b/mix.exs
index 176e229f6..92e4ca876 100644
--- a/mix.exs
+++ b/mix.exs
@@ -42,10 +42,19 @@ defmodule Ejabberd.Mixfile do
     end
   end
 
+  defp if_version_above(ver, okResult) do
+    if :erlang.system_info(:otp_release) > ver do
+      okResult
+    else
+      []
+    end
+  end
+
   defp erlc_options do
     # Use our own includes + includes from all dependencies
     includes = ["include"] ++ deps_include(["fast_xml", "xmpp", "p1_utils"])
     [:debug_info, {:d, :ELIXIR_ENABLED}] ++ cond_options() ++ Enum.map(includes, fn(path) -> {:i, path} end) ++
+    if_version_above('20', [{:d, :DEPRECATED_GET_STACKTRACE}]) ++
     if_function_exported(:crypto, :strong_rand_bytes, 1, [{:d, :STRONG_RAND_BYTES}]) ++
     if_function_exported(:rand, :uniform, 1, [{:d, :RAND_UNIFORM}]) ++
     if_function_exported(:gb_sets, :iterator_from, 2, [{:d, :GB_SETS_ITERATOR_FROM}]) ++