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extern crate version_check;
use std::env;
use version_check::is_min_version;
fn main() {
// Switch on for versions that have Error::source
if is_min_version("1.30").unwrap_or(false) {
println!("cargo:rustc-cfg=has_error_source");
}
if is_min_version("1.42").unwrap_or(false) {
println!("cargo:rustc-cfg=has_error_description_deprecated");
}
// So we can get the build profile for has_backtrace_depending_on_env test
if let Ok(profile) = env::var("PROFILE") {
println!("cargo:rustc-cfg=build={:?}", profile);
}
}