From 66ebee4dd2f55dadca0eaad72139eb3c5ea4c6ea Mon Sep 17 00:00:00 2001 From: jyn Date: Wed, 12 Feb 2025 23:01:22 -0500 Subject: [PATCH] Compiletest should not inherit all host RUSTFLAGS I told rhelmot to do this in #134913. But it's not correct; compiletest shouldn't inherit RUSTFLAGS at all. Pass a single new --host-rustcflags to compiletest instead, without overwriting any existing arguments. Fixes the following failure, which only happens when building llvm from source and then running `x test --stage 1 ui-fulldeps`: ``` diff --git a/tests/ui-fulldeps/fluent-messages/test.stderr b/tests/ui-fulldeps/fluent-messages/test.stderr index 0b3bb14ce51..978ac46c5a2 100644 --- a/tests/ui-fulldeps/fluent-messages/test.stderr +++ b/tests/ui-fulldeps/fluent-messages/test.stderr @@ -1,3 +1,8 @@ +warning[E0602]: unknown lint: `linker_messages` + | + = note: requested on the command line with `-A linker_messages` + = note: `#[warn(unknown_lints)]` on by default ``` --- src/bootstrap/src/core/build_steps/test.rs | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 509875a469f1f..2b4e9d48a2456 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -1969,13 +1969,12 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the if !builder.config.dry_run() && suite.ends_with("fulldeps") { let llvm_libdir = command(&llvm_config).arg("--libdir").run_capture_stdout(builder).stdout(); - let mut rustflags = env::var("RUSTFLAGS").unwrap_or_default(); - if target.is_msvc() { - rustflags.push_str(&format!("-Clink-arg=-LIBPATH:{llvm_libdir}")); + let link_llvm = if target.is_msvc() { + format!("-Clink-arg=-LIBPATH:{llvm_libdir}") } else { - rustflags.push_str(&format!("-Clink-arg=-L{llvm_libdir}")); - } - cmd.env("RUSTFLAGS", rustflags); + format!("-Clink-arg=-L{llvm_libdir}") + }; + cmd.arg("--host-rustcflags").arg(link_llvm); } if !builder.config.dry_run() && matches!(mode, "run-make" | "coverage-run") {