File 002-use-system-gamemode.patch of Package retroarch
diff -rubN retroarch-sourceonly-1.21.0/frontend/drivers/platform_unix.c retroarch-sourceonly-1.21.0-patched/frontend/drivers/platform_unix.c
--- retroarch-sourceonly-1.21.0/frontend/drivers/platform_unix.c 2025-05-01 15:25:23.000000000 +0200
+++ retroarch-sourceonly-1.21.0-patched/frontend/drivers/platform_unix.c 2025-10-01 21:27:41.012311180 +0200
@@ -30,7 +30,7 @@
#ifdef __linux__
#include <linux/version.h>
#if __STDC_VERSION__ >= 199901L && !defined(ANDROID)
-#include "feralgamemode/gamemode_client.h"
+#include <gamemode_client.h>
#define FERAL_GAMEMODE
#endif
/* inotify API was added in 2.6.13 */