check arch

build.rs

@@ -1,5 +1,7 @@
 #[cfg(not(feature = "bindgen"))]
-fn main() {}
+fn main() {
+    println!("cargo::rustc-check-cfg=cfg(io_uring_skip_arch_check)");
+}
 
 #[cfg(feature = "bindgen")]
 fn main() {

src/sys/mod.rs

@@ -33,6 +33,15 @@ fn to_result(ret: c_int) -> io::Result<c_int> {
     }
 }
 
+#[cfg(all(
+    not(feature = "bindgen"),
+    not(target_arch = "x86_64"),
+    not(io_uring_skip_arch_check)
+))]
+compile_error!("The prebuilt `sys.rs` may not be compatible with your target,
+please use bindgen feature to generate new `sys.rs` of your arch
+or use `--cfg=io_uring_skip_arch_check` to skip the check.");
+
 #[cfg(all(feature = "bindgen", not(feature = "overwrite")))]
 include!(concat!(env!("OUT_DIR"), "/sys.rs"));