From 1b949c67da264b107a339a773fed9dcdae9311d8 Mon Sep 17 00:00:00 2001
From: Martin Michelsen <fuzziqersoftware+g@gmail.com>
Date: Tue, 13 Sep 2022 10:02:51 -0700
Subject: [PATCH] add missing include on linux

---
 src/PSOEncryptionSeedFinder.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/PSOEncryptionSeedFinder.hh b/src/PSOEncryptionSeedFinder.hh
index 38713ac7..16c0d3c0 100644
--- a/src/PSOEncryptionSeedFinder.hh
+++ b/src/PSOEncryptionSeedFinder.hh
@@ -4,6 +4,7 @@
 #include <stddef.h>
 
 #include <atomic>
+#include <functional>
 #include <string>
 #include <thread>
 #include <utility>