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https://github.com/rust-lang/rust/issues/133629
https://github.com/rust-lang/rust/commit/a24d859f19bbefe5371694f318568b0ab5a13299
From: onur-ozkan <work@onurozkan.dev>
Date: Thu, 30 Jan 2025 16:51:08 +0000
Subject: [PATCH] set rustc dylib on manually constructed rustc command
Signed-off-by: onur-ozkan <work@onurozkan.dev>
--- a/src/bootstrap/src/core/builder/cargo.rs
+++ b/src/bootstrap/src/core/builder/cargo.rs
@@ -653,7 +653,10 @@ impl Builder<'_> {
// Build proc macros both for the host and the target unless proc-macros are not
// supported by the target.
if target != compiler.host && cmd_kind != Kind::Check {
- let error = command(self.rustc(compiler))
+ let mut rustc_cmd = command(self.rustc(compiler));
+ self.add_rustc_lib_path(compiler, &mut rustc_cmd);
+
+ let error = rustc_cmd
.arg("--target")
.arg(target.rustc_target_arg())
.arg("--print=file-names")
@@ -661,6 +664,7 @@ impl Builder<'_> {
.arg("-")
.run_capture(self)
.stderr();
+
let not_supported = error
.lines()
.any(|line| line.contains("unsupported crate type `proc-macro`"));
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