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Move extern crate proc_macro into each possible lib.rs

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This makes it slightly more convenient to use the following as a
Reindeer fixup for those that prefer to build from source:

    extra_mapped_srcs = { "src/lib_from_source.rs" = "src/lib.rs" }

    [platform_fixups.'cfg(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu"))']
    extra_deps = [":proc-macro2", ":quote", ":syn"]

as opposed to checking in a whole new file containing the `extern crate
proc_macro` + `include!("lib_from_source.rs")`.
This commit is contained in:
David Tolnay 2023-07-25 18:52:40 -07:00
parent 6140b6f527
commit 6882285be0
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GPG Key ID: F9BA143B95FF6D82
3 changed files with 3 additions and 2 deletions
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2
precompiled/serde_derive/src/lib.rs
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@ -16,8 +16,6 @@
#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.175")] #![doc(html_root_url = "https://docs.rs/serde_derive/1.0.175")]
#![allow(unknown_lints, bare_trait_objects)] #![allow(unknown_lints, bare_trait_objects)]
extern crate proc_macro;
#[cfg(not(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu")))] #[cfg(not(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu")))]
include!("lib_from_source.rs"); include!("lib_from_source.rs");

1
precompiled/serde_derive/src/lib_from_source.rs
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@ -3,6 +3,7 @@ extern crate quote;
#[macro_use] #[macro_use]
extern crate syn; extern crate syn;
extern crate proc_macro;
extern crate proc_macro2; extern crate proc_macro2;
mod internals; mod internals;

2
precompiled/serde_derive/src/lib_precompiled.rs
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@ -1,3 +1,5 @@
extern crate proc_macro;
mod buffer; mod buffer;
mod bytecode; mod bytecode;