serde/serde_codegen/build.rs

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Rust
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#[cfg(feature = "with-syntex")]
mod inner {
extern crate quasi_codegen;
use std::env;
use std::path::Path;
use std::thread::spawn;
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pub fn main() {
// put everything into a thread, so users can use `RUST_MIN_STACK` to increase the amount of stack
spawn(|| {
let out_dir = env::var_os("OUT_DIR").unwrap();
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let src = Path::new("src/lib.rs.in");
let dst = Path::new(&out_dir).join("lib.rs");
quasi_codegen::expand(&src, &dst).unwrap();
}).join().unwrap()
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}
}
#[cfg(not(feature = "with-syntex"))]
mod inner {
pub fn main() {}
}
fn main() {
inner::main();
}