Fix lib path

Author: antoyo

compiler/rustc_codegen_gcc/src/lib.rs

@@ -98,6 +98,7 @@ use rustc_middle::ty::TyCtxt;
 use rustc_middle::util::Providers;
 use rustc_session::Session;
 use rustc_session::config::{OptLevel, OutputFilenames};
+use rustc_session::filesearch::make_target_lib_path;
 use rustc_span::Symbol;
 use rustc_target::spec::{Arch, RelocModel};
 use tempfile::TempDir;
@@ -182,9 +183,7 @@ pub struct GccCodegenBackend {
 static LTO_SUPPORTED: AtomicBool = AtomicBool::new(false);
 
 fn libgccjit_path(sysroot_path: &Path, target_triple: &str) -> PathBuf {
-    let sysroot_lib_dir = sysroot_path.join("lib").join("rustlib");
-    let libgccjit_target_lib_file =
-        sysroot_lib_dir.join(target_triple).join("lib").join("libgccjit.so");
+    make_target_lib_path(sysroot_path, target_triple).join("libgccjit.so")
 }
 
 fn load_libgccjit_if_needed(sysroot_path: &Path, target_triple: &str) {