| // 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 http://mozilla.org/MPL/2.0/. |
| |
| use std::env; |
| |
| fn main() { |
| println!("cargo:rerun-if-changed=build.rs"); |
| if let Some(channel) = version_check::Channel::read() { |
| if channel.supports_features() { |
| println!("cargo:rustc-cfg=has_specialisation"); |
| } |
| } |
| let pkgname = env::var("CARGO_PKG_NAME").expect("Cargo didn't set the CARGO_PKG_NAME env var!"); |
| let test_rc = env::var("IM_TEST_RC").is_ok(); |
| match pkgname.as_str() { |
| "im" => { |
| if !test_rc { |
| println!("cargo:rustc-cfg=threadsafe") |
| } |
| } |
| "im-rc" => {} |
| _ => panic!("unexpected package name!"), |
| } |
| } |
