disable internal x11 doctest
@@ -5,7 +5,7 @@ use super::{MissingExtensionError, X11Error};
/// This macro generates a struct which checks for the presence of some X11 extensions and stores
/// the version supplied by the X server.
///
-/// ```rust
+/// ```ignore(cannot-test-this-because-non-exported-macro)
/// extensions! {
/// // The extension to check for. This should correspond to the name of the extension inside x11rb's `x11rb::protocol::xproto::<name>` module path.
/// xfixes {
