From a65d380cb9f75924a5c920a09ce57e6196eaa786 Mon Sep 17 00:00:00 2001
From: pschatzmann <phil.schatzmann@gmail.com>
Date: Wed, 1 Jan 2025 11:25:59 +0100
Subject: [PATCH] compile error in PlatfomIO

---
 src/AudioTools/CoreAudio/AudioRuntime.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/AudioTools/CoreAudio/AudioRuntime.h b/src/AudioTools/CoreAudio/AudioRuntime.h
index a20f16b26..e4ce8801c 100644
--- a/src/AudioTools/CoreAudio/AudioRuntime.h
+++ b/src/AudioTools/CoreAudio/AudioRuntime.h
@@ -49,6 +49,12 @@ inline void printNChar(char ch, int n){
   Serial.println();
 }
 
+#ifndef ESP_ARDUINO_VERSION_STR
+#  define df2xstr(s)              #s
+#  define df2str(s)               df2xstr(s)
+#  define ESP_ARDUINO_VERSION_STR df2str(ESP_ARDUINO_VERSION_MAJOR) "." df2str(ESP_ARDUINO_VERSION_MINOR) "." df2str(ESP_ARDUINO_VERSION_PATCH)
+#endif
+
 /// prints the available version information
 inline void printVersionInfo() {
   printNChar('*',50);