From e61b7574e0413c3ea35d292ac0015eec27270dd2 Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@qt.io>
Date: Mon, 23 May 2022 16:33:27 +0200
Subject: [PATCH] q20functional.h: transitively include <functional>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We don't want to require users to say

  #include <functional>
  #include <q20functional.h>

because that would leave duplicated <functional> includes after a
mechanical s/q20functional.h/functional/. Mechanical transformation is
the major design goal of the qNN namespaces, so fix this before we use
the header in ever more places.

Pick-to: 6.3
Change-Id: Id258c36a042214f41b737fb7ab60906cc8e76ca6
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
---
 src/corelib/global/q20functional.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/corelib/global/q20functional.h b/src/corelib/global/q20functional.h
index 787b3ec035..13e6c9e090 100644
--- a/src/corelib/global/q20functional.h
+++ b/src/corelib/global/q20functional.h
@@ -23,6 +23,8 @@
 // We mean it.
 //
 
+#include <functional>
+
 QT_BEGIN_NAMESPACE
 
 namespace q20 {