fix: docs.rs support by creating gen-mock feture

Which allows usage of the static version of the generated values.

CHANGELOG.md

@@ -17,7 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-*
+* Build process for the docs.rs website
 
 ## [0.6.11] - 2023-02-21
 

Cargo.toml

@@ -17,6 +17,7 @@ crate-type = ["cdylib", "rlib"]
 [features]
 wasm = ["wasm-bindgen"]
 debug = []
+gen-mock = []
 
 [dependencies]
 wasm-bindgen = { version = "0.2", optional = true }
@@ -35,3 +36,6 @@ members = [
     ".",
     "frontends/sdl",
 ]
+
+[package.metadata.docs.rs]
+features = ["wasm", "gen-mock"]

src/gen/mod.rs

 //! Constants that define the current build and execution environment.
 
-#[cfg(feature = "readonly")]
+#[cfg(feature = "gen-mock")]
 pub mod mock;
-#[cfg(feature = "readonly")]
+#[cfg(feature = "gen-mock")]
 pub use self::mock::*;
 
 #[rustfmt::skip]
-#[cfg(not(feature = "readonly"))]
+#[cfg(not(feature = "gen-mock"))]
 pub mod build;
-#[cfg(not(feature = "readonly"))]
+#[cfg(not(feature = "gen-mock"))]
 pub use self::build::*;