Support precompiled deserialize_in_place

precompiled/x86_64-unknown-linux-gnu/Cargo.toml

@@ -16,6 +16,10 @@ repository = "https://github.com/serde-rs/serde"
 name = "serde_derive"
 proc-macro = true
 
+[features]
+default = []
+deserialize_in_place = []
+
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
 

precompiled/x86_64-unknown-linux-gnu/src/lib.rs

@@ -23,7 +23,7 @@ pub fn derive_serialize(input: TokenStream) -> TokenStream {
 
 #[proc_macro_derive(Deserialize, attributes(serde))]
 pub fn derive_deserialize(input: TokenStream) -> TokenStream {
-    derive(1, input)
+    derive(1 + cfg!(feature = "deserialize_in_place") as u8, input)
 }
 
 fn derive(select: u8, input: TokenStream) -> TokenStream {