From 45b3c2aa3c035bdb051e32123fd7be91089d922a Mon Sep 17 00:00:00 2001
From: zhongwencool <zhongwencool@gmail.com>
Date: Mon, 5 Feb 2024 15:19:26 +0800
Subject: [PATCH] chore: enable maybe_expr in elixir runtime

---
 mix.exs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index 9f591f61e..c2eaddcd9 100644
--- a/mix.exs
+++ b/mix.exs
@@ -680,7 +680,8 @@ defmodule EMQXUmbrella.MixProject do
 
     # the elixir version of escript + start.boot required the boot_var
     # RELEASE_LIB to be defined.
-    boot_var = "%%!-boot_var RELEASE_LIB $RUNNER_ROOT_DIR/lib"
+    # enable-feature is not required when 1.6.x
+    boot_var = "%%!-boot_var RELEASE_LIB $RUNNER_ROOT_DIR/lib -enable-feature maybe_expr"
 
     # Files with the version appended are expected by the release
     # upgrade script `install_upgrade.escript`