1Fix bootstrap failure when multilibs are enabled. 2 3Upstream-Status: Backport [https://github.com/rust-lang/rust/commit/139d6ba054a1a4cc5fe64981ad46fd5547bd4916] 4 5Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com> 6--- 7diff --git a/src/bootstrap/src/core/builder/cargo.rs b/src/bootstrap/src/core/builder/cargo.rs 8index 066e6bf53f..a2f6fac4b1 100644 9--- a/src/bootstrap/src/core/builder/cargo.rs 10+++ b/src/bootstrap/src/core/builder/cargo.rs 11@@ -646,7 +646,10 @@ impl Builder<'_> { 12 // Build proc macros both for the host and the target unless proc-macros are not 13 // supported by the target. 14 if target != compiler.host && cmd_kind != Kind::Check { 15- let error = command(self.rustc(compiler)) 16+ let mut rustc_cmd = command(self.rustc(compiler)); 17+ self.add_rustc_lib_path(compiler, &mut rustc_cmd); 18+ 19+ let error = rustc_cmd 20 .arg("--target") 21 .arg(target.rustc_target_arg()) 22 .arg("--print=file-names") 23@@ -654,6 +657,7 @@ impl Builder<'_> { 24 .arg("-") 25 .run_capture(self) 26 .stderr(); 27+ 28 let not_supported = error 29 .lines() 30 .any(|line| line.contains("unsupported crate type `proc-macro`")); 31 32