Integrate forked QMdnsEngine with some required fixes for GameStream (submitted upstream)

qmdnsengine/qmdnsengine_export.h

@@ -0,0 +1,40 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Nathan Osman
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef QMDNSENGINE_EXPORT_H
+#define QMDNSENGINE_EXPORT_H
+
+#include <QtCore/qglobal.h>
+
+#if defined(BUILD_SHARED_LIBS)
+#  if defined(QMDNSENGINE_LIBRARY)
+#    define QMDNSENGINE_EXPORT Q_DECL_EXPORT
+#  else
+#    define QMDNSENGINE_EXPORT Q_DECL_IMPORT
+#  endif
+#else
+#  define QMDNSENGINE_EXPORT
+#endif
+
+#endif // QMDNSENGINE_EXPORT_H