From 296a179b1cf5fc79c77c79cfa56e6c57e50b4613 Mon Sep 17 00:00:00 2001
From: alecmocatta <alec@mocatta.net>
Date: Tue, 24 Jul 2018 02:11:57 +0100
Subject: [PATCH] break --subsystem=x into 2 args; closer to former presumably
 known-good incantation

---
 src/librustc_codegen_llvm/back/linker.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/librustc_codegen_llvm/back/linker.rs b/src/librustc_codegen_llvm/back/linker.rs
index 4a5de6426b2..f5bd31a67e5 100644
--- a/src/librustc_codegen_llvm/back/linker.rs
+++ b/src/librustc_codegen_llvm/back/linker.rs
@@ -449,7 +449,8 @@ impl<'a> Linker for GccLinker<'a> {
     }
 
     fn subsystem(&mut self, subsystem: &str) {
-        self.linker_arg(&format!("--subsystem={}", subsystem));
+        self.linker_arg("--subsystem");
+        self.linker_arg(&subsystem);
     }
 
     fn finalize(&mut self) -> Command {