Fix compilation with --no-lv2 (#0006169).

Not that I condone such backwards behaviour.

(Different issue in the ticket, but it was still broken at link time).

libs/ardour/ardour/event_type_map.h

@@ -54,14 +54,12 @@ public:
 	void set_descriptor(const Evoral::Parameter&           param,
 	                    const Evoral::ParameterDescriptor& desc);
 
-	URIMap& uri_map() { return _uri_map; }
-
 private:
 	typedef std::map<Evoral::Parameter, Evoral::ParameterDescriptor> Descriptors;
 
-	EventTypeMap(URIMap& uri_map) : _uri_map(uri_map) {}
+	EventTypeMap(URIMap* uri_map) : _uri_map(uri_map) {}
 
-	URIMap&     _uri_map;
+	URIMap*     _uri_map;
 	Descriptors _descriptors;
 
 	static EventTypeMap* event_type_map;

libs/ardour/automatable.cc

@@ -173,8 +173,10 @@ Automatable::describe_parameter (Evoral::Parameter param)
 		return string_compose("Bender [%1]", int(param.channel()) + 1);
 	} else if (param.type() == MidiChannelPressureAutomation) {
 		return string_compose("Pressure [%1]", int(param.channel()) + 1);
+#ifdef LV2_SUPPORT
 	} else if (param.type() == PluginPropertyAutomation) {
 		return string_compose("Property %1", URIMap::instance().id_to_uri(param.id()));
+#endif
 	} else {
 		return EventTypeMap::instance().to_symbol(param);
 	}

libs/ardour/event_type_map.cc

@@ -41,7 +41,11 @@ EventTypeMap&
 EventTypeMap::instance()
 {
 	if (!EventTypeMap::event_type_map) {
-		EventTypeMap::event_type_map = new EventTypeMap(URIMap::instance());
+#ifdef LV2_SUPPORT
+		EventTypeMap::event_type_map = new EventTypeMap(&URIMap::instance());
+#else
+		EventTypeMap::event_type_map = new EventTypeMap(NULL);
+#endif
 	}
 	return *EventTypeMap::event_type_map;
 }
@@ -149,14 +153,16 @@ EventTypeMap::from_symbol(const string& str) const
 	} else if (str.length() > 10 && str.substr(0, 10) == "parameter-") {
 		p_type = PluginAutomation;
 		p_id = atoi(str.c_str()+10);
+#ifdef LV2_SUPPORT
 	} else if (str.length() > 9 && str.substr(0, 9) == "property-") {
 		p_type = PluginPropertyAutomation;
 		const char* name = str.c_str() + 9;
 		if (isdigit(str.c_str()[0])) {
 			p_id = atoi(name);
 		} else {
-			p_id = _uri_map.uri_to_id(name);
+			p_id = _uri_map->uri_to_id(name);
 		}
+#endif
 	} else if (str.length() > 7 && str.substr(0, 7) == "midicc-") {
 		p_type = MidiCCAutomation;
 		uint32_t channel = 0;
@@ -223,13 +229,15 @@ EventTypeMap::to_symbol(const Evoral::Parameter& param) const
 		return "envelope";
 	} else if (t == PluginAutomation) {
 		return string_compose("parameter-%1", param.id());
+#ifdef LV2_SUPPORT
 	} else if (t == PluginPropertyAutomation) {
-		const char* uri = _uri_map.id_to_uri(param.id());
+		const char* uri = _uri_map->id_to_uri(param.id());
 		if (uri) {
 			return string_compose("property-%1", uri);
 		} else {
 			return string_compose("property-%1", param.id());
 		}
+#endif
 	} else if (t == MidiCCAutomation) {
 		return string_compose("midicc-%1-%2", int(param.channel()), param.id());
 	} else if (t == MidiPgmChangeAutomation) {

libs/ardour/globals.cc

@@ -328,7 +328,9 @@ ARDOUR::init (bool use_windows_vst, bool try_optimization, const char* localedir
 
 	/* singletons - first object is "it" */
 	(void) PluginManager::instance();
+#ifdef LV2_SUPPORT
 	(void) URIMap::instance();
+#endif
 	(void) EventTypeMap::instance();
 
         ProcessThread::init ();