Skip to content
Permalink
Browse files

Print an error message if neither Canvas 2D backend is selected

  • Loading branch information...
SimonSapin committed Jul 1, 2019
1 parent 1df2605 commit acd8454b169eec019bcebbf8448038c0426f306e
Showing with 20 additions and 0 deletions.
  1. +20 −0 components/canvas/build.rs
@@ -0,0 +1,20 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */

fn main() {
let azure = std::env::var_os("CARGO_FEATURE_CANVAS2D_AZURE").is_some();
let raqote = std::env::var_os("CARGO_FEATURE_CANVAS2D_RAQOTE").is_some();

if !(azure || raqote) {
error("Must enable one of the `canvas2d-azure` or `canvas2d-raqote` features.")
}
if azure && raqote {
error("Must not enable both of the `canvas2d-azure` and `canvas2d-raqote` features.")
}
}

fn error(message: &str) {
print!("\n\n Error: {}\n\n", message);
std::process::exit(1)
}

0 comments on commit acd8454

Please sign in to comment.
You can’t perform that action at this time.