--- rustc-1.12.0/src/librustc_llvm/build.rs.orig
+++ rustc-1.12.0/src/librustc_llvm/build.rs
@@ -128,6 +128,7 @@
     // of llvm-config, not the target that we're attempting to link.
     let mut cmd = Command::new(&llvm_config);
     cmd.arg("--libs");
+    cmd.arg("--link-static");
     if !is_crossed {
         cmd.arg("--system-libs");
     }