From 9f41f6ee72fd63c62f68446beef10d37a957e35a Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 16 Jan 2020 09:22:28 +0100
Subject: compat/qhash: try fix older Qt

---
 compat/qhash.hpp          | 20 ++++++++++++++++++++
 dinput/win32-joystick.hpp |  2 +-
 options/connector.hpp     |  2 +-
 3 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 compat/qhash.hpp

diff --git a/compat/qhash.hpp b/compat/qhash.hpp
new file mode 100644
index 00000000..507b612e
--- /dev/null
+++ b/compat/qhash.hpp
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <QtGlobal>
+#include <QString>
+#include <QHashFunctions>
+
+// Qt < 5.14.0
+#ifndef QT_SPECIALIZE_STD_HASH_TO_CALL_QHASH_BY_CREF
+
+namespace std {
+template<> struct hash<QString>
+{
+    unsigned operator()(const QString& value) const
+    {
+        return qHash(value);
+    }
+};
+}
+
+#endif
diff --git a/dinput/win32-joystick.hpp b/dinput/win32-joystick.hpp
index e0721bdf..ff52ad1d 100644
--- a/dinput/win32-joystick.hpp
+++ b/dinput/win32-joystick.hpp
@@ -17,7 +17,7 @@
 #include <unordered_map>
 #include <iterator>
 
-#include <QHashFunctions>
+#include "compat/qhash.hpp"
 #include <QString>
 #include <QMutex>
 
diff --git a/options/connector.hpp b/options/connector.hpp
index ffef2a3d..d32f896f 100644
--- a/options/connector.hpp
+++ b/options/connector.hpp
@@ -13,7 +13,7 @@
 
 #include <QString>
 #include <QMutex>
-#include <QHashFunctions>
+#include "compat/qhash.hpp"
 
 #include "export.hpp"
 
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