Bump bindgen.

Untested as I'm not on macos, but it should be behavior-identical as the only
potential relevant breaking change for coreaudio is the size_t -> usize mapping,
that this PR restores.

Author: emilio

Cargo.toml

@@ -11,7 +11,7 @@ repository = "https://github.com/RustAudio/coreaudio-sys.git"
 build = "build.rs"
 
 [build-dependencies.bindgen]
-version = "0.51"
+version = "0.53"
 default-features = false
 
 [features]

build.rs

@@ -79,6 +79,8 @@ fn build(sdk_path: Option<&str>, target: &str) {
     // Begin building the bindgen params.
     let mut builder = bindgen::Builder::default();
 
+    builder = builder.size_t_is_usize(true);
+
     builder = builder.clang_args(&[&format!("--target={}", target)]);
 
     if let Some(sdk_path) = sdk_path {