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use system_deps::Dependencies;
fn main() {
if std::env::var("DOCS_RS").is_ok() {
// don't link against unavailable native lib in doc.rs builds
return;
}
let deps = system_deps::Config::new().probe().unwrap();
auto_detect(&deps);
}
#[cfg(feature = "auto")]
fn auto_detect(deps: &Dependencies) {
let native_lib = deps.get_by_name("libdisplay-info").unwrap();
let native_version = semver::Version::parse(&native_lib.version).unwrap();
let is_v3 = semver::VersionReq::parse(">=0.3")
.unwrap()
.matches(&native_version);
if is_v3 {
println!("cargo:rustc-cfg=feature=\"v0_3\"");
return;
}
let is_v2 = semver::VersionReq::parse(">=0.2")
.unwrap()
.matches(&native_version);
if is_v2 {
println!("cargo:rustc-cfg=feature=\"v0_2\"");
return;
}
println!("cargo:rustc-cfg=feature=\"v0_1\"");
}
#[cfg(not(feature = "auto"))]
fn auto_detect(_: &Dependencies) {}
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