diff --git a/libcxx/utils/libcxx/test/config.py b/libcxx/utils/libcxx/test/config.py
--- a/libcxx/utils/libcxx/test/config.py
+++ b/libcxx/utils/libcxx/test/config.py
@@ -209,8 +209,6 @@
         flags = []
         compile_flags = []
         link_flags = _prefixed_env_list('LIB', '-L')
-        for path in _split_env_var('LIB'):
-            self.add_path(self.exec_env, path)
         return CXXCompiler(self, clang_path, flags=flags,
                            compile_flags=compile_flags,
                            link_flags=link_flags)