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Add build warning only if CRANELIFT_VERBOSE is set to anything;

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This commit is contained in:
Benjamin Bouvier
2018-11-20 15:40:39 +01:00
committed by Dan Gohman
parent 9947c315b7
commit d15e56a9fa
1 changed files with 11 additions and 0 deletions
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11
lib/codegen/build.rs
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@@ -23,8 +23,11 @@ extern crate cranelift_codegen_meta as meta;
use meta::isa::Isa; use meta::isa::Isa;
use std::env; use std::env;
use std::process; use std::process;
use std::time::Instant;
fn main() { fn main() {
let start_time = Instant::now();
let out_dir = env::var("OUT_DIR").expect("The OUT_DIR environment variable must be set"); let out_dir = env::var("OUT_DIR").expect("The OUT_DIR environment variable must be set");
let target_triple = env::var("TARGET").expect("The TARGET environment variable must be set"); let target_triple = env::var("TARGET").expect("The TARGET environment variable must be set");
let cranelift_targets = env::var("CRANELIFT_TARGETS").ok(); let cranelift_targets = env::var("CRANELIFT_TARGETS").ok();
@@ -92,6 +95,14 @@ fn main() {
process::exit(1); process::exit(1);
} }
} }
if let Ok(_) = env::var("CRANELIFT_VERBOSE") {
println!(
"cargo:warning=Build step took {:?}.",
Instant::now() - start_time
);
println!("cargo:warning=Generated files are in {}", out_dir);
}
} }
fn identify_python() -> &'static str { fn identify_python() -> &'static str {