From 9835e2ae736235810b4ea1c162ca5e65c547e770 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 04:49:50 +0200 Subject: Merging upstream version 1.71.1+dfsg1. Signed-off-by: Daniel Baumann --- src/bootstrap/bin/rustc.rs | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'src/bootstrap/bin/rustc.rs') diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs index 040fec361..e87125a49 100644 --- a/src/bootstrap/bin/rustc.rs +++ b/src/bootstrap/bin/rustc.rs @@ -19,7 +19,7 @@ include!("../dylib_util.rs"); use std::env; use std::path::PathBuf; -use std::process::{Child, Command}; +use std::process::{exit, Child, Command}; use std::str::FromStr; use std::time::Instant; @@ -47,7 +47,12 @@ fn main() { } else { ("RUSTC_REAL", "RUSTC_LIBDIR") }; - let stage = env::var("RUSTC_STAGE").expect("RUSTC_STAGE was not set"); + let stage = env::var("RUSTC_STAGE").unwrap_or_else(|_| { + // Don't panic here; it's reasonable to try and run these shims directly. Give a helpful error instead. + eprintln!("rustc shim: fatal: RUSTC_STAGE was not set"); + eprintln!("rustc shim: note: use `x.py build -vvv` to see all environment variables set by bootstrap"); + exit(101); + }); let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set"); let on_fail = env::var_os("RUSTC_ON_FAIL").map(Command::new); @@ -150,7 +155,7 @@ fn main() { // allow the `rustc_private` feature to link to other unstable crates // also in the sysroot. We also do this for host crates, since those // may be proc macros, in which case we might ship them. - if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() && (stage != "0" || target.is_some()) { + if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() { cmd.arg("-Z").arg("force-unstable-if-unmarked"); } -- cgit v1.2.3