Find codegen backends in more locations

* Search in the sysroot passed using `--sysroot` in addition to the
  default sysroot.
* Search for `librustc_codegen_$name.so` in addition to
  `librustc_codegen_$name-$release.so`.

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs
index 15b984acac5..d80454d29a5 100644
--- a/compiler/rustc_driver/src/lib.rs
+++ b/compiler/rustc_driver/src/lib.rs
@@ -799,7 +799,7 @@ pub fn version(binary: &str, matches: &getopts::Matches) {
         println!("host: {}", config::host_triple());
         println!("release: {}", unw(util::release_str()));
         if cfg!(feature = "llvm") {
-            get_builtin_codegen_backend("llvm")().print_version();
+            get_builtin_codegen_backend(&None, "llvm")().print_version();
         }
     }
 }
@@ -1088,7 +1088,7 @@ pub fn handle_options(args: &[String]) -> Option<getopts::Matches> {
 
     if cg_flags.iter().any(|x| *x == "passes=list") {
         if cfg!(feature = "llvm") {
-            get_builtin_codegen_backend("llvm")().print_passes();
+            get_builtin_codegen_backend(&None, "llvm")().print_passes();
         }
         return None;
     }