From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Tue, 25 May 2021 08:09:43 +0000 (+0200)
Subject: dnsdist-1.6.x: Backport a missing mutex header
X-Git-Tag: dnsdist-1.6.1~6^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F10438%2Fhead;p=thirdparty%2Fpdns.git

dnsdist-1.6.x: Backport a missing mutex header
---

diff --git a/pdns/lock.hh b/pdns/lock.hh
index 09299d7979..0e88118c56 100644
--- a/pdns/lock.hh
+++ b/pdns/lock.hh
@@ -20,6 +20,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 #pragma once
+
+#include <mutex>
 #include <shared_mutex>
 
 class ReadWriteLock