From 844267eeef2041b2deabd168ef0930acf4c52ffb Mon Sep 17 00:00:00 2001
From: proddy <paul@derbyshire.nl>
Date: Fri, 28 Aug 2020 15:11:35 +0200
Subject: [PATCH] minor fix for standlone compilation

---
 src/system.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/system.cpp b/src/system.cpp
index 7bb76f310..712665a92 100644
--- a/src/system.cpp
+++ b/src/system.cpp
@@ -717,6 +717,8 @@ bool System::check_upgrade() {
 
     Serial.end();
     return true;
+#else
+    return false;
 #endif
 }