mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Improve error message when cargo build is used to build the compiler

Browse Source
This commit is contained in:
Nilstrieb 2024-01-29 20:32:27 +01:00
parent 88189a71e4
commit 6468d44c37
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
compiler/rustc_macros/build.rs Normal file
View File

@ -0,0 +1,16 @@
fn main() {
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rerun-if-env-changed=RUSTC_BOOTSTRAP");
if !std::env::var("RUSTC_BOOTSTRAP").is_ok() {
eprintln!(
"error: you are attempting to build the compiler without going through bootstrap"
);
eprintln!(
"help: see https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html for how to build the compiler"
);
eprintln!(
"help: if you know what you're doing, set the RUSTC_BOOTSTRAP environment variable to any value"
);
panic!("wrong command used for building");
}
}