qt: Add a missing include <functional>

* lang/qt/src/qgpgmenewcryptoconfig.cpp: Include functional.

--
This is intended to fix compilation against the c++ stdlib from
Gentoo / GCC 7.

Patch provided by Martin Väth.
GnuPG-Bug-Id: T3151
This commit is contained in:
Andre Heinecke 2017-05-10 10:24:18 +02:00
parent cc2ef3d07c
commit 5e27bf98b4
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@ -49,6 +49,7 @@
#include <sstream>
#include <string>
#include <functional>
#include <cassert>
#include <functional>