Make the rustc and rustdoc wrapper not depend on libbootstrap

This slightly improves compilation time by reducing linking time
(saving about a 1/10 of the the total compilation time after
changing rustbuild) and slightly reduces disk usage (from 16MB for
the rustc wrapper to 4MB).

1 files changed, 5 insertions, 3 deletions

diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs
index ed53a98e9a5..7105a2457e2 100644
--- a/src/bootstrap/bin/rustc.rs
+++ b/src/bootstrap/bin/rustc.rs
@@ -15,6 +15,8 @@
 //! switching compilers for the bootstrap and for build scripts will probably
 //! never get replaced.
 
+include!("../dylib_util.rs");
+
 use std::env;
 use std::path::PathBuf;
 use std::process::{Child, Command};
@@ -50,11 +52,11 @@ fn main() {
 
     let rustc = env::var_os(rustc).unwrap_or_else(|| panic!("{:?} was not set", rustc));
     let libdir = env::var_os(libdir).unwrap_or_else(|| panic!("{:?} was not set", libdir));
-    let mut dylib_path = bootstrap::util::dylib_path();
+    let mut dylib_path = dylib_path();
     dylib_path.insert(0, PathBuf::from(&libdir));
 
     let mut cmd = Command::new(rustc);
-    cmd.args(&args).env(bootstrap::util::dylib_path_var(), env::join_paths(&dylib_path).unwrap());
+    cmd.args(&args).env(dylib_path_var(), env::join_paths(&dylib_path).unwrap());
 
     // Get the name of the crate we're compiling, if any.
     let crate_name =
@@ -161,7 +163,7 @@ fn main() {
         eprintln!(
             "{} command: {:?}={:?} {:?}",
             prefix,
-            bootstrap::util::dylib_path_var(),
+            dylib_path_var(),
             env::join_paths(&dylib_path).unwrap(),
             cmd,
         );