--- drivers/auxiliary/gemini_flatpanel_adapters.cpp.orig	2025-12-01 05:49:56 UTC
+++ drivers/auxiliary/gemini_flatpanel_adapters.cpp
@@ -4,6 +4,7 @@
 #include <termios.h>
 #include <cstring>
 #include <cstdio>
+#include <cstdlib>
 
 //////////////////////////////////////////////////////////////////////////////
 // GeminiFlatpanelRev1Adapter Implementation
