mentat/build/version.rs
Jordan Santell ec2bbb8e83 Ensure minimum rustc version in a build script. r=nalexander (#326)
Printing out failure to meet rustc version helps users during
setup with a helpful message if using an older rustc.
Rust version checking from http://stackoverflow.com/a/36607492.
2017-02-17 12:04:45 -08:00

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1,013 B
Rust

// Copyright 2016 Mozilla
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the
// License at http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
extern crate rustc_version;
use std::io::{self, Write};
use std::process::exit;
use rustc_version::version_matches;
/// MIN_VERSION should be changed when there's a new minimum version of rustc required
/// to build the project.
static MIN_VERSION: &'static str = ">= 1.15.1";
fn main() {
if !version_matches(MIN_VERSION) {
writeln!(&mut io::stderr(), "Mentat requires rustc {}", MIN_VERSION).unwrap();
exit(1);
}
}