From 91e6772de90c20133138fc8cbbaba19abf3da950 Mon Sep 17 00:00:00 2001
From: Douglas Scofield <douglasgscofield@gmail.com>
Date: Mon, 16 Sep 2024 18:53:52 +0200
Subject: [PATCH] add missing <optional> header

---
 src/projects/mts/kmer_multiplicity_counter.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/projects/mts/kmer_multiplicity_counter.cpp b/src/projects/mts/kmer_multiplicity_counter.cpp
index f0e55ed95..1d380080c 100644
--- a/src/projects/mts/kmer_multiplicity_counter.cpp
+++ b/src/projects/mts/kmer_multiplicity_counter.cpp
@@ -13,6 +13,7 @@
 #include <iostream>
 #include <memory>
 #include <algorithm>
+#include <optional>
 #include "getopt_pp/getopt_pp.h"
 #include "kmc_api/kmc_file.h"
 #include <pdqsort/pdqsort.h>