Platform agnostic dep features, and troubleshooting in readme

Cargo.toml

@@ -4,19 +4,23 @@ version = "0.1.0"
 edition = "2021"
 
 [features]
-default = ["linked"]
-linked = ["openxr/linked", "openxr/static"]
+default = ["openxr/mint"]
 
 [dependencies]
 anyhow = "1.0.75"
 ash = "0.37.3"
 bevy = "0.12"
-openxr = { version = "0.17.1", features = ["mint"] }
 mint = "0.5.9"
 wgpu = "0.17.1"
 wgpu-core = { version = "0.17.1", features = ["vulkan"] }
 wgpu-hal = "0.17.1"
 
+[target.'cfg( target_os = "linux" )'.dependencies]
+openxr = { version = "0.17.1", features = ["linked"] }
+
+[target.'cfg(not(target_os = "linux"))'.dependencies]
+openxr = { version = "0.17.1", features = ["linked", "static"] }
+
 [dev-dependencies]
 bevy = "0.12"
 color-eyre = "0.6.2"

README.md

@@ -4,3 +4,11 @@ An in-progress crate for adding openxr support to Bevy without forking.
 ![image](https://github.com/awtterpip/bevy_openxr/assets/50841145/aa01fde4-7915-49b9-b486-ff61ce6d57a9)
 
 To see it in action run the example in `examples` with `cargo run --example xr`
+
+## Troubleshooting
+
+- I'm getting a `CMake error: ...` on Linux.
+    - Make sure you have the `openxr` package installed on your system.
+    - Append `--no-default-features` to your build command (example: `cargo run --example xr --no-default-features`)
+- I'm getting poor performance.
+    - Like other bevy projects, make sure you're building in release (example: `cargo run --example xr --release`)