From f0c32a14a43f907b82da159e783783368c3c5051 Mon Sep 17 00:00:00 2001
From: Klemens Nanni <kn@openbsd.org>
Date: Mon, 13 Apr 2020 19:59:45 +0200
Subject: [PATCH] Include missing <signal.h>

At least on OpenBSD, signal(3) requires this.
---
 tmate-ssh-server.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tmate-ssh-server.c b/tmate-ssh-server.c
index 25c7878c..b96ba119 100644
--- a/tmate-ssh-server.c
+++ b/tmate-ssh-server.c
@@ -6,6 +6,7 @@
 #include <sys/wait.h>
 #include <ctype.h>
 #include <stdio.h>
+#include <signal.h>
 #include <event.h>
 #include <arpa/inet.h>
 #ifndef IPPROTO_TCP