Auto merge of #2528 - workingjubilee:scope-wasi, r=joshtriplett

Scope in Send, Sync for wasi

Without this, libc fails during the build of rustc. See: rust-lang/rust#90681

Alternative solution: It's not clear this is necessary for core to finish building, so maybe we should cfg it out in that case, instead?

Author: bors

src/lib.rs

@@ -63,7 +63,7 @@ cfg_if! {
         use core::clone::Clone;
         #[doc(hidden)]
         #[allow(unused_imports)]
-        use core::marker::Copy;
+        use core::marker::{Copy, Send, Sync};
         #[doc(hidden)]
         #[allow(unused_imports)]
         use core::option::Option;
@@ -85,7 +85,7 @@ cfg_if! {
         pub use core::clone::Clone;
         #[doc(hidden)]
         #[allow(unused_imports)]
-        pub use core::marker::Copy;
+        pub use core::marker::{Copy, Send, Sync};
         #[doc(hidden)]
         #[allow(unused_imports)]
         pub use core::option::Option;

src/wasi.rs

@@ -1,3 +1,5 @@
+use super::{Send, Sync};
+
 pub use ffi::c_void;
 
 pub type c_char = i8;