in optee-teec/optee-teec-sys/build.rs [21:30]
fn main() {
const ENV_SYS_BUILD_TYPE: &str = "SYS_BUILD_TYPE";
println!("cargo:rerun-if-env-changed={}", ENV_SYS_BUILD_TYPE);
let build_type = env::var(ENV_SYS_BUILD_TYPE).unwrap_or(String::from("")).to_lowercase();
match build_type.as_str() {
"unit_test" => unit_test_build(),
_ => production_build(),
}
}