ltr-retriever: changing directory layout (#38513)

var/spack/repos/builtin/packages/ltr-retriever/package.py

@@ -3,8 +3,6 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
-from os import symlink
-
 from spack.package import *
 
 
@@ -42,9 +40,7 @@ def install(self, spec, prefix):
                 "^TEsorter=.*$", "TEsorter={}".format(spec["py-tesorter"].prefix.bin), "paths"
             )
 
-        mkdirp(prefix.opt)
-        mkdirp(prefix.bin)
+        install_tree(".", prefix)
 
-        install_tree(".", prefix.opt.ltr_retriever)
-
-        symlink(prefix.opt.ltr_retriever.LTR_retriever, prefix.bin.LTR_retriever)
+    def setup_run_environment(self, env):
+        env.prepend_path("PATH", self.prefix)