Patch lilv to pass lv2_path directly; Cleaner and works with wine

source/modules/lilv/lilv-0.20.0/lilv/lilv.h

@@ -527,7 +527,7 @@ lilv_world_free(LilvWorld* world);
    with special plugin bundles which are installed to a known location).
 */
 LILV_API void
-lilv_world_load_all(LilvWorld* world);
+lilv_world_load_all(LilvWorld* world, const char* lv2_path);
 
 /**
    Load a specific bundle.

source/modules/lilv/lilv-0.20.0/lilv/lilvmm.hpp

@@ -344,7 +344,7 @@ struct World {
 	}
 
 	LILV_WRAP2_VOID(world, set_option, const char*, uri, LilvNode*, value);
-	LILV_WRAP0_VOID(world, load_all);
+	LILV_WRAP1_VOID(world, load_all, const char*, lv2_path);
 	LILV_WRAP1_VOID(world, load_bundle, LilvNode*, bundle_uri);
 	LILV_WRAP0(const LilvPluginClass*, world, get_plugin_class);
 	LILV_WRAP0(const LilvPluginClasses*, world, get_plugin_classes);

source/modules/lilv/lilv-0.20.0/src/world.c

@@ -782,12 +782,8 @@ lilv_world_load_plugin_classes(LilvWorld* world)
 }
 
 LILV_API void
-lilv_world_load_all(LilvWorld* world)
+lilv_world_load_all(LilvWorld* world, const char* lv2_path)
 {
-	const char* lv2_path = getenv("LV2_PATH");
-	if (!lv2_path)
-		lv2_path = LILV_DEFAULT_LV2_PATH;
-
 	// Discover bundles and read all manifest files into model
 	lilv_world_load_path(world, lv2_path);
 

source/utils/CarlaLv2Utils.hpp

@@ -376,13 +376,7 @@ public:
 
         needsInit = false;
 
-        char* const oldLv2Path(std::getenv("LV2_PATH"));
-        carla_setenv("LV2_PATH", LV2_PATH);
-
-        Lilv::World::load_all();
-
-        if (oldLv2Path != nullptr)
-            carla_setenv("LV2_PATH", oldLv2Path);
+        Lilv::World::load_all(LV2_PATH);
     }
 
     void load_bundle(const char* const bundle)