1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
use std::env::var;
use std::process::Command;
use std::str;
fn main() {
let verbose = Command::new(var("RUSTC").unwrap_or("rustc".into()))
.arg("--version")
.arg("--verbose")
.output()
.unwrap()
.stdout;
let verbose = str::from_utf8(&verbose).unwrap();
let mut commit_date = None;
let mut release = None;
for line in verbose.lines() {
let mut parts = line.split(':');
match parts.next().unwrap().trim() {
"commit-date" => commit_date = Some(parts.next().unwrap().trim()),
"release" => release = Some(parts.next().unwrap().trim()),
_ => {}
}
}
let version = release.unwrap().split('-').next().unwrap();;
let mut version_components = version.split('.').map(|s| s.parse::<u32>().unwrap());
let version = (
version_components.next().unwrap(),
version_components.next().unwrap(),
version_components.next().unwrap(),
// "unknown" sorts after "2016-02-14", which is what we want to defaut to unprefixed
// https://github.com/servo/heapsize/pull/44#issuecomment-187935883
commit_date.unwrap()
);
assert_eq!(version_components.next(), None);
if version < (1, 8, 0, "2016-02-14") {
println!("cargo:rustc-cfg=prefixed_jemalloc");
}
}
|
