1 files changed, 14 insertions, 0 deletions
diff --git a/src/librustc_trans/back/command.rs b/src/librustc_trans/back/command.rs
index 0bccef1e62a..e5e0a4e3ba0 100644
--- a/src/librustc_trans/back/command.rs
+++ b/src/librustc_trans/back/command.rs
@@ -17,6 +17,8 @@ use std::io;
 use std::mem;
 use std::process::{self, Output};
 
+use rustc_back::LldFlavor;
+
 #[derive(Clone)]
 pub struct Command {
     program: Program,
@@ -28,6 +30,7 @@ pub struct Command {
 enum Program {
     Normal(OsString),
     CmdBatScript(OsString),
+    Lld(OsString, LldFlavor)
 }
 
 impl Command {
@@ -39,6 +42,10 @@ impl Command {
         Command::_new(Program::CmdBatScript(program.as_ref().to_owned()))
     }
 
+    pub fn lld<P: AsRef<OsStr>>(program: P, flavor: LldFlavor) -> Command {
+        Command::_new(Program::Lld(program.as_ref().to_owned(), flavor))
+    }
+
     fn _new(program: Program) -> Command {
         Command {
             program,
@@ -101,6 +108,13 @@ impl Command {
                 c.arg("/c").arg(p);
                 c
             }
+            Program::Lld(ref p, flavor) => {
+                let mut c = process::Command::new(p);
+                c.arg("-flavor").arg(match flavor {
+                    LldFlavor::Wasm => "wasm",
+                });
+                c
+            }
         };
         ret.args(&self.args);
         ret.envs(self.env.clone());