diff --git a/gtk2_ardour/generic_pluginui.cc b/gtk2_ardour/generic_pluginui.cc
index 52bb468a67..c66a1fec38 100644
--- a/gtk2_ardour/generic_pluginui.cc
+++ b/gtk2_ardour/generic_pluginui.cc
@@ -43,8 +43,6 @@
 #include "ardour/plugin_insert.h"
 #include "ardour/session.h"
 
-#include <lrdf.h>
-
 #include "ardour_ui.h"
 #include "prompter.h"
 #include "plugin_ui.h"
diff --git a/gtk2_ardour/plugin_selector.cc b/gtk2_ardour/plugin_selector.cc
index 81adf40896..2a031318ff 100644
--- a/gtk2_ardour/plugin_selector.cc
+++ b/gtk2_ardour/plugin_selector.cc
@@ -21,7 +21,6 @@
 #endif
 
 #include <cstdio>
-#include <lrdf.h>
 #include <map>
 
 #include <algorithm>
diff --git a/gtk2_ardour/plugin_ui.cc b/gtk2_ardour/plugin_ui.cc
index d9741f5e39..c19738f02f 100644
--- a/gtk2_ardour/plugin_ui.cc
+++ b/gtk2_ardour/plugin_ui.cc
@@ -59,8 +59,6 @@
 #include "lv2_plugin_ui.h"
 #endif
 
-#include <lrdf.h>
-
 #include "ardour_window.h"
 #include "ardour_ui.h"
 #include "prompter.h"
diff --git a/libs/ardour/audio_library.cc b/libs/ardour/audio_library.cc
index c2b2f1bff7..4a6089dac3 100644
--- a/libs/ardour/audio_library.cc
+++ b/libs/ardour/audio_library.cc
@@ -17,11 +17,18 @@
 
 */
 
+#ifdef WAF_BUILD
+#include "libardour-config.h"
+#endif
+
 #include <sstream>
 
 #include <libxml/uri.h>
 
+#ifdef HAVE_LRDF
 #include <lrdf.h>
+#endif
+
 #include <glibmm/miscutils.h>
 
 #include <glibmm/convert.h>
@@ -57,7 +64,9 @@ AudioLibrary::AudioLibrary ()
 
 	touch_file(sfdb_file_path);
 
+#ifdef HAVE_LRDF
 	lrdf_read_file(src.c_str());
+#endif
 }
 
 AudioLibrary::~AudioLibrary ()
@@ -67,14 +76,17 @@ AudioLibrary::~AudioLibrary ()
 void
 AudioLibrary::save_changes ()
 {
+#ifdef HAVE_LRDF
 	if (lrdf_export_by_source(src.c_str(), src.substr(5).c_str())) {
 		PBD::warning << string_compose(_("Could not open %1.  Audio Library not saved"), src) << endmsg;
 	}
+#endif
 }
 
 void
 AudioLibrary::set_tags (string member, vector<string> tags)
 {
+#ifdef HAVE_LRDF
 	sort (tags.begin(), tags.end());
 	tags.erase (unique(tags.begin(), tags.end()), tags.end());
 
@@ -85,12 +97,14 @@ AudioLibrary::set_tags (string member, vector<string> tags)
 	for (vector<string>::iterator i = tags.begin(); i != tags.end(); ++i) {
 		lrdf_add_triple (src.c_str(), file_uri.c_str(), TAG, (*i).c_str(), lrdf_literal);
 	}
+#endif
 }
 
 vector<string>
 AudioLibrary::get_tags (string member)
 {
 	vector<string> tags;
+#ifdef HAVE_LRDF
 
 	lrdf_statement pattern;
 	pattern.subject = strdup(Glib::filename_to_uri(member).c_str());
@@ -111,13 +125,14 @@ AudioLibrary::get_tags (string member)
 	lrdf_free_statements (matches);
 
 	sort (tags.begin(), tags.end());
-
+#endif
 	return tags;
 }
 
 void
 AudioLibrary::search_members_and (vector<string>& members, const vector<string>& tags)
 {
+#ifdef HAVE_LRDF
 	lrdf_statement **head;
 	lrdf_statement* pattern = 0;
 	lrdf_statement* old = 0;
@@ -153,4 +168,5 @@ AudioLibrary::search_members_and (vector<string>& members, const vector<string>&
 		pattern = pattern->next;
 		delete old;
 	}
+#endif
 }
diff --git a/libs/ardour/globals.cc b/libs/ardour/globals.cc
index cc427f7428..fe07332d85 100644
--- a/libs/ardour/globals.cc
+++ b/libs/ardour/globals.cc
@@ -57,7 +57,9 @@
 #include <glibmm/fileutils.h>
 #include <glibmm/miscutils.h>
 
+#ifdef HAVE_LRDF
 #include <lrdf.h>
+#endif
 
 #include "pbd/cpus.h"
 #include "pbd/error.h"
@@ -265,7 +267,9 @@ ARDOUR::init (bool use_windows_vst, bool try_optimization, const char* localedir
 	// allow ardour the absolute maximum number of open files
 	lotsa_files_please ();
 
+#ifdef HAVE_LRDF
 	lrdf_init();
+#endif
 	Library = new AudioLibrary;
 
 	BootMessage (_("Loading configuration"));
@@ -360,7 +364,9 @@ int
 ARDOUR::cleanup ()
 {
 	delete Library;
+#ifdef HAVE_LRDF
 	lrdf_cleanup ();
+#endif
 	delete &ControlProtocolManager::instance();
 #ifdef WINDOWS_VST_SUPPORT
 	fst_exit ();
diff --git a/libs/ardour/ladspa_plugin.cc b/libs/ardour/ladspa_plugin.cc
index b306269276..6ee810f6b1 100644
--- a/libs/ardour/ladspa_plugin.cc
+++ b/libs/ardour/ladspa_plugin.cc
@@ -17,6 +17,10 @@
 
 */
 
+#ifdef WAF_BUILD
+#include "libardour-config.h"
+#endif
+
 #include <inttypes.h>
 
 #include <vector>
@@ -29,7 +33,9 @@
 #include <sys/stat.h>
 #include <cerrno>
 
+#ifdef HAVE_LRDF
 #include <lrdf.h>
+#endif
 
 #include "pbd/compose.h"
 #include "pbd/error.h"
@@ -625,10 +631,11 @@ LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
 boost::shared_ptr<Plugin::ScalePoints>
 LadspaPlugin::get_scale_points(uint32_t port_index) const
 {
+	boost::shared_ptr<Plugin::ScalePoints> ret;
+#ifdef HAVE_LRDF
 	const uint32_t id     = atol(unique_id().c_str());
 	lrdf_defaults* points = lrdf_get_scale_values(id, port_index);
 
-	boost::shared_ptr<Plugin::ScalePoints> ret;
 	if (!points) {
 		return ret;
 	}
@@ -641,6 +648,7 @@ LadspaPlugin::get_scale_points(uint32_t port_index) const
 	}
 
 	lrdf_free_setting_values(points);
+#endif
 	return ret;
 }
 
@@ -725,6 +733,7 @@ LadspaPluginInfo::LadspaPluginInfo()
 void
 LadspaPlugin::find_presets ()
 {
+#ifdef HAVE_LRDF
 	uint32_t id;
 	std::string unique (unique_id());
 
@@ -745,12 +754,14 @@ LadspaPlugin::find_presets ()
 		}
 		lrdf_free_uris(set_uris);
 	}
+#endif
 }
 
 
 bool
 LadspaPlugin::load_preset (PresetRecord r)
 {
+#ifdef HAVE_LRDF
 	lrdf_defaults* defs = lrdf_get_setting_values (r.uri.c_str());
 
 	if (defs) {
@@ -763,6 +774,7 @@ LadspaPlugin::load_preset (PresetRecord r)
 	}
 
 	Plugin::load_preset (r);
+#endif
 	return true;
 }
 
@@ -770,6 +782,7 @@ LadspaPlugin::load_preset (PresetRecord r)
 static void
 lrdf_remove_preset (const char* /*source*/, const char *setting_uri)
 {
+#ifdef HAVE_LRDF
 	lrdf_statement p;
 	lrdf_statement *q;
 	lrdf_statement *i;
@@ -803,11 +816,13 @@ lrdf_remove_preset (const char* /*source*/, const char *setting_uri)
 	p.predicate = NULL;
 	p.object = NULL;
 	lrdf_remove_matches (&p);
+#endif
 }
 
 void
 LadspaPlugin::do_remove_preset (string name)
 {
+#ifdef HAVE_LRDF
 	string const envvar = preset_envvar ();
 	if (envvar.empty()) {
 		warning << _("Could not locate HOME.  Preset not removed.") << endmsg;
@@ -823,6 +838,7 @@ LadspaPlugin::do_remove_preset (string name)
 	lrdf_remove_preset (source.c_str(), p->uri.c_str ());
 
 	write_preset_file (envvar);
+#endif
 }
 
 string
@@ -845,6 +861,7 @@ LadspaPlugin::preset_source (string envvar) const
 bool
 LadspaPlugin::write_preset_file (string envvar)
 {
+#ifdef HAVE_LRDF
 	string path = string_compose("%1/.ladspa", envvar);
 	if (g_mkdir_with_parents (path.c_str(), 0775)) {
 		warning << string_compose(_("Could not create %1.  Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
@@ -865,11 +882,15 @@ LadspaPlugin::write_preset_file (string envvar)
 	}
 
 	return true;
+#else
+	return false;
+#endif
 }
 
 string
 LadspaPlugin::do_save_preset (string name)
 {
+#ifdef HAVE_LRDF
 	/* make a vector of pids that are input parameters */
 	vector<int> input_parameter_pids;
 	for (uint32_t i = 0; i < parameter_count(); ++i) {
@@ -913,6 +934,9 @@ LadspaPlugin::do_save_preset (string name)
 	}
 
 	return uri;
+#else
+	return string();
+#endif
 }
 
 LADSPA_PortDescriptor
diff --git a/libs/ardour/plugin.cc b/libs/ardour/plugin.cc
index e76353e8d5..ec9e333285 100644
--- a/libs/ardour/plugin.cc
+++ b/libs/ardour/plugin.cc
@@ -32,7 +32,9 @@
 #include <cerrno>
 #include <utility>
 
+#ifdef HAVE_LRDF
 #include <lrdf.h>
+#endif
 
 #include "pbd/compose.h"
 #include "pbd/error.h"
diff --git a/libs/ardour/plugin_manager.cc b/libs/ardour/plugin_manager.cc
index a3a7fb48da..6ea0292872 100644
--- a/libs/ardour/plugin_manager.cc
+++ b/libs/ardour/plugin_manager.cc
@@ -25,10 +25,13 @@
 
 #include <sys/types.h>
 #include <cstdio>
-#include <lrdf.h>
 #include <cstdlib>
 #include <fstream>
 
+#ifdef HAVE_LRDF
+#include <lrdf.h>
+#endif
+
 #ifdef WINDOWS_VST_SUPPORT
 #include "fst.h"
 #include "pbd/basename.h"
@@ -314,7 +317,7 @@ PluginManager::add_lxvst_presets()
 void
 PluginManager::add_presets(string domain)
 {
-
+#ifdef HAVE_LRDF
 	PathScanner scanner;
 	vector<string *> *presets;
 	vector<string *>::iterator x;
@@ -337,11 +340,13 @@ PluginManager::add_presets(string domain)
 		
 		vector_delete (presets);
 	}
+#endif
 }
 
 void
 PluginManager::add_lrdf_data (const string &path)
 {
+#ifdef HAVE_LRDF
 	PathScanner scanner;
 	vector<string *>* rdf_files;
 	vector<string *>::iterator x;
@@ -359,6 +364,7 @@ PluginManager::add_lrdf_data (const string &path)
 
 		vector_delete (rdf_files);
 	}
+#endif
 }
 
 int
@@ -448,6 +454,7 @@ PluginManager::ladspa_discover (string path)
 string
 PluginManager::get_ladspa_category (uint32_t plugin_id)
 {
+#ifdef HAVE_LRDF
 	char buf[256];
 	lrdf_statement pattern;
 
@@ -505,6 +512,9 @@ PluginManager::get_ladspa_category (uint32_t plugin_id)
 	} else {
 		return label;
 	}
+#else
+		return ("Unknown");
+#endif
 }
 
 #ifdef LV2_SUPPORT