New DISTRHO_PLUGIN_IS_RT_SAFE macro, enabled by default

distrho/src/DistrhoPluginChecks.h

@@ -59,6 +59,10 @@
 # define DISTRHO_PLUGIN_WANT_DIRECT_ACCESS 0
 #endif
 
+#ifndef DISTRHO_PLUGIN_IS_RT_SAFE
+# define DISTRHO_PLUGIN_IS_RT_SAFE 1
+#endif
+
 #define DISTRHO_UI_URI DISTRHO_PLUGIN_URI "#UI"
 
 #endif // DISTRHO_PLUGIN_CHECKS_H_INCLUDED

distrho/src/DistrhoPluginLADSPA+DSSI.cpp

@@ -446,7 +446,11 @@ static void dssi_run_synth(LADSPA_Handle instance, ulong sampleCount, snd_seq_ev
 static LADSPA_Descriptor sLadspaDescriptor = {
     /* UniqueID   */ 0,
     /* Label      */ nullptr,
+#if DISTRHO_PLUGIN_IS_RT_SAFE
     /* Properties */ LADSPA_PROPERTY_HARD_RT_CAPABLE,
+#else
+    /* Properties */ 0x0,
+#endif
     /* Name       */ nullptr,
     /* Maker      */ nullptr,
     /* Copyright  */ nullptr,

distrho/src/DistrhoPluginLV2export.cpp

@@ -166,8 +166,12 @@ void lv2_generate_ttl(const char* const basename)
         pluginString += ";\n\n";
 
         // optionalFeatures
+#if DISTRHO_PLUGIN_IS_RT_SAFE
         pluginString += "    lv2:optionalFeature <" LV2_CORE__hardRTCapable "> ,\n";
         pluginString += "                        <" LV2_BUF_SIZE__boundedBlockLength "> ;\n";
+#else
+        pluginString += "    lv2:optionalFeature <" LV2_BUF_SIZE__boundedBlockLength "> ;\n";
+#endif
         pluginString += "\n";
 
         // requiredFeatures