made lib fallback to flat when no runtime is found but can't compile …

…with default settings under those circumstances

examples/demo/Cargo.toml

@@ -17,4 +17,5 @@ color-eyre = "0.6.2"
 
 [target.'cfg(not(target_os="android"))'.dependencies.bevy_oxr]
 path = "../../"
+# May need to be more specific. needs to be false at least on linux without an active runtime to run in flat
 default-features = true

examples/demo/src/lib.rs

@@ -17,7 +17,7 @@ use bevy::{
 };
 use bevy_oxr::{
     input::XrInput,
-    render_restart::{XrEnableRequest, XrEnableStatus},
+    xr_init::{XrEnableRequest, XrEnableStatus, xr_only},
     resources::{XrFrameState, XrInstance, XrSession},
     xr_input::{
         actions::XrActionSets,
@@ -77,11 +77,11 @@ pub fn main() {
         .add_systems(Startup, setup_scene)
         .add_systems(Startup, spawn_controllers_example) //you need to spawn controllers or it crashes TODO:: Fix this
         //add locomotion
-        .add_systems(Update, proto_locomotion)
+        .add_systems(Update, proto_locomotion.run_if(xr_only()))
         .insert_resource(PrototypeLocomotionConfig::default())
         //lets add the interaction systems
         .add_event::<InteractionEvent>()
-        .add_systems(Update, prototype_interaction_input)
+        .add_systems(Update, prototype_interaction_input.run_if(xr_only()))
         .add_systems(Update, interactions.before(update_interactable_states))
         .add_systems(Update, update_interactable_states)
         .add_systems(
@@ -93,7 +93,7 @@ pub fn main() {
         //draw the interaction gizmos
         .add_systems(
             Update,
-            draw_interaction_gizmos.after(update_interactable_states),
+            draw_interaction_gizmos.run_if(xr_only()).after(update_interactable_states),
         )
         .add_systems(Update, draw_socket_gizmos.after(update_interactable_states))
         //add our cube spawning system
@@ -102,7 +102,7 @@ pub fn main() {
             0.25,
             bevy::time::TimerMode::Once,
         )))
-        .add_systems(Update, request_cube_spawn)
+        .add_systems(Update, request_cube_spawn.run_if(xr_only()))
         .add_systems(Update, cube_spawner.after(request_cube_spawn))
         //test capsule
         .add_systems(Startup, spawn_capsule)