20 lines
639 B
Rust
20 lines
639 B
Rust
use std::{env, process};
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fn main() {
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let tls_features = [
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("tls-native", env::var_os("CARGO_FEATURE_TLS_NATIVE").is_some()),
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("tls-rustls-native-roots", env::var_os("CARGO_FEATURE_TLS_RUSTLS_NATIVE_ROOTS").is_some()),
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("tls-rustls-webpki-roots", env::var_os("CARGO_FEATURE_TLS_RUSTLS_WEBPKI_ROOTS").is_some()),
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];
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if tls_features.iter().filter(|(_, a)| *a).count() > 1 {
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eprintln!("error: Only one tls features can be enabled.");
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for (f, a) in &tls_features {
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eprintln!(" {}: {}", f, if *a { "enabled" } else { "disabled" });
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}
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process::exit(1);
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}
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}
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