Add Qt libs and headers

paho-mqtt3as-proxy/Qt/include/QtCore/qstringliteral.h

@@ -0,0 +1,43 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2020 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSTRINGLITERAL_H
+#define QSTRINGLITERAL_H
+
+#include <QtCore/qarraydata.h>
+#include <QtCore/qarraydatapointer.h>
+
+#if 0
+#pragma qt_class(QStringLiteral)
+#endif
+
+QT_BEGIN_NAMESPACE
+
+// all our supported compilers support Unicode string literals,
+// even if their Q_COMPILER_UNICODE_STRING has been revoked due
+// to lacking stdlib support. But QStringLiteral only needs the
+// core language feature, so just use u"" here unconditionally:
+
+#define QT_UNICODE_LITERAL(str) u"" str
+
+using QStringPrivate = QArrayDataPointer<char16_t>;
+
+namespace QtPrivate {
+template <qsizetype N>
+static Q_ALWAYS_INLINE QStringPrivate qMakeStringPrivate(const char16_t (&literal)[N])
+{
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-const-cast)
+    auto str = const_cast<char16_t *>(literal);
+    return { nullptr, str, N - 1 };
+}
+}
+
+#define QStringLiteral(str) \
+    (QString(QtPrivate::qMakeStringPrivate(QT_UNICODE_LITERAL(str)))) \
+    /**/
+
+
+QT_END_NAMESPACE
+
+#endif // QSTRINGLITERAL_H