From d60b19878b18878b7120dc5ff3839b5d86660cce Mon Sep 17 00:00:00 2001
From: pschatzmann <phil.schatzmann@gmail.com>
Date: Mon, 9 Dec 2024 06:10:53 +0100
Subject: [PATCH] FFTDisplay.h multiple compilation units

---
 src/AudioTools/AudioLibs/FFTDisplay.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/AudioTools/AudioLibs/FFTDisplay.h b/src/AudioTools/AudioLibs/FFTDisplay.h
index aa8846d5d..4688ca2e3 100644
--- a/src/AudioTools/AudioLibs/FFTDisplay.h
+++ b/src/AudioTools/AudioLibs/FFTDisplay.h
@@ -5,7 +5,7 @@
 namespace audio_tools {
 
 class FFTDisplay;
-FFTDisplay *selfFFTDisplay = nullptr;
+static FFTDisplay *selfFFTDisplay = nullptr;
 #if defined(USE_CONCURRENCY)
 // fft mutex
 static Mutex fft_mux;