g3/lib/g3-resolver/build.rs

23 lines
652 B
Rust

/*
* SPDX-License-Identifier: Apache-2.0
* Copyright 2023-2025 ByteDance and/or its affiliates.
*/
fn main() {
println!("cargo:rustc-check-cfg=cfg(cares1_20)");
println!("cargo:rustc-check-cfg=cfg(cares1_22)");
#[cfg(feature = "c-ares")]
if let Ok(version) = std::env::var("DEP_CARES_VERSION_NUMBER") {
// this will require a dependency on c-ares-sys crate
let version = u64::from_str_radix(&version, 16).unwrap();
if version >= 0x1_14_00 {
println!("cargo:rustc-cfg=cares1_20");
}
if version >= 0x1_16_00 {
println!("cargo:rustc-cfg=cares1_22");
}
}
}