From dbc40e8235fb2c0b5cdd6951192e6fb8e51f5716 Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Mon, 5 Jul 2021 17:10:21 +0200
Subject: [PATCH] libusb: fix build

---
 port/libusb/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/port/libusb/main.c b/port/libusb/main.c
index 1dd46dd76..e8140f37b 100644
--- a/port/libusb/main.c
+++ b/port/libusb/main.c
@@ -47,6 +47,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <signal.h>
 
 #include "btstack_config.h"