src/stdsimd/crates/assert-instr-macro/build.rs

   1 use std::env;
   2
   3 fn main() {
   4     println!("cargo:rerun-if-changed=build.rs");
   5     let opt_level = env::var("OPT_LEVEL")
   6         .ok()
   7         .and_then(|s| s.parse().ok())
   8         .unwrap_or(0);
   9     let profile = env::var("PROFILE").unwrap_or(String::new());
  10     if profile == "release" || opt_level >= 2 {
  11         println!("cargo:rustc-cfg=optimized");
  12     }
  13 }