lib/upnp: adapt to libupnp 1.8 API changes

Closes #155

src/lib/upnp/Compat.hxx

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2003-2017 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_UPNP_COMPAT_HXX
+#define MPD_UPNP_COMPAT_HXX
+
+#include <upnp/upnp.h>
+
+#if UPNP_VERSION < 10800
+#include "Compiler.h"
+
+/* emulate the libupnp 1.8 API with older versions */
+
+using UpnpDiscovery = Upnp_Discovery;
+
+gcc_pure
+static inline int
+UpnpDiscovery_get_Expires(const UpnpDiscovery *disco) noexcept
+{
+  return disco->Expires;
+}
+
+gcc_pure
+static inline const char *
+UpnpDiscovery_get_DeviceID_cstr(const UpnpDiscovery *disco) noexcept
+{
+  return disco->DeviceId;
+}
+
+gcc_pure
+static inline const char *
+UpnpDiscovery_get_DeviceType_cstr(const UpnpDiscovery *disco) noexcept
+{
+  return disco->DeviceType;
+}
+
+gcc_pure
+static inline const char *
+UpnpDiscovery_get_ServiceType_cstr(const UpnpDiscovery *disco) noexcept
+{
+  return disco->ServiceType;
+}
+
+gcc_pure
+static inline const char *
+UpnpDiscovery_get_Location_cstr(const UpnpDiscovery *disco) noexcept
+{
+  return disco->Location;
+}
+
+#endif
+
+#endif