workaround for bindgen bug

Author: usamoi

pgrx-bindgen/src/build.rs

@@ -829,10 +829,9 @@ fn run_bindgen(
         .wrap_static_fns(enable_cshim)
         .wrap_static_fns_path(out_path.join("pgrx-cshim-static"))
         .wrap_static_fns_suffix("__pgrx_cshim")
-        .override_abi(bindgen::Abi::CUnwind, ".*")
         .generate()
         .wrap_err_with(|| format!("Unable to generate bindings for pg{major_version}"))?;
-    let mut binding_str = bindings.to_string();
+    let mut binding_str = bindings.to_string().replace("\"C\"", "\"C-unwind\"");
     drop(bindings); // So the Rc::into_inner can unwrap
 
     // FIXME: do this for the Node graph instead of reparsing?