use `#[feature(core_ffi_c)]` when available

2 files changed, 15 insertions, 3 deletions

diff --git a/src/codegen/helpers.rs b/src/codegen/helpers.rs
index 75c169c6..5bf36acb 100644
--- a/src/codegen/helpers.rs
+++ b/src/codegen/helpers.rs
@@ -166,9 +166,19 @@ pub mod ast_ty {
                     #prefix::#ident
                 }
             }
-            None => quote! {
-                ::std::os::raw::#ident
-            },
+            None => {
+                if ctx.options().use_core &&
+                    ctx.options().rust_features().core_ffi_c
+                {
+                    quote! {
+                        ::core::ffi::#ident
+                    }
+                } else {
+                    quote! {
+                        ::std::os::raw::#ident
+                    }
+                }
+            }
         }
     }
 
diff --git a/src/features.rs b/src/features.rs
index 59467703..f18ffa88 100644
--- a/src/features.rs
+++ b/src/features.rs
@@ -130,6 +130,7 @@ macro_rules! rust_target_base {
             /// Nightly rust
             ///  * `thiscall` calling convention ([Tracking issue](https://github.com/rust-lang/rust/issues/42202))
             ///  * `vectorcall` calling convention (no tracking issue)
+            ///  * `core_ffi_c` ([Tracking issue](https://github.com/rust-lang/rust/issues/94501))
             => Nightly => nightly;
         );
     }
@@ -236,6 +237,7 @@ rust_feature_def!(
     Nightly {
         => thiscall_abi;
         => vectorcall_abi;
+        => core_ffi_c;
     }
 );