Sha256: 626c9fc3a055a6b64b6cf85f5aad1b22c9f6a49f9ff163316fa8dac3b34aef75
Contents?: true
Size: 756 Bytes
Versions: 13
Compression:
Stored size: 756 Bytes
Contents
use std::env;
use std::process::Command;
use std::str;
fn main() {
println!("cargo:rerun-if-changed=build.rs");
let compiler = match rustc_minor_version() {
Some(compiler) => compiler,
None => return,
};
if compiler < 45 {
println!("cargo:rustc-cfg=no_span_mixed_site");
}
if compiler < 47 {
println!("cargo:rustc-cfg=self_span_hack");
}
}
fn rustc_minor_version() -> Option<u32> {
let rustc = env::var_os("RUSTC")?;
let output = Command::new(rustc).arg("--version").output().ok()?;
let version = str::from_utf8(&output.stdout).ok()?;
let mut pieces = version.split('.');
if pieces.next() != Some("rustc 1") {
return None;
}
pieces.next()?.parse().ok()
}
Version data entries
13 entries across 13 versions & 1 rubygems