Avoid hashing destination path for native deps

rust/rust.bzl

@@ -109,15 +109,21 @@ def _hashed_lib_path(lib):
   split_basename = lib.basename.split('.', 2)
   return split_basename[0] + '-' + hash_value + '.' + split_basename[1]
 
-def _create_setup_cmd(lib, deps_dir, in_runfiles):
+def _create_setup_cmd(lib, deps_dir, in_runfiles, hash_path=True):
   """
   Helper function to construct a command for symlinking a library into the
   deps directory.
+
+  It unique-ifies provided libs unless hash_path is set to false. This is
+  necessary for native libs.
   """
   lib_path = lib.short_path if in_runfiles else lib.path
+  destination_path = lib.basename
+  if hash_path:
+    destination_path = _hashed_lib_path(lib)
   return (
       "ln -sf " + _relative(deps_dir, lib_path) + " " +
-      deps_dir + "/" + _hashed_lib_path(lib) + "\n"
+      deps_dir + "/" + destination_path + "\n"
   )
 
 def _setup_deps(deps, name, working_dir, allow_cc_deps=False,
@@ -153,6 +159,7 @@ def _setup_deps(deps, name, working_dir, allow_cc_deps=False,
   libs = set()
   transitive_libs = set()
   symlinked_libs = set()
+  unique_symlinked_libs = set()
   link_flags = []
   for dep in deps:
     if hasattr(dep, "rust_lib"):
@@ -175,17 +182,22 @@ def _setup_deps(deps, name, working_dir, allow_cc_deps=False,
       native_libs = A_FILETYPE.filter(dep.cc.libs)
       libs += native_libs
       transitive_libs += native_libs
-      symlinked_libs += native_libs
+      unique_symlinked_libs += native_libs
       link_flags += ["-l static=" + dep.label.name]
       has_native = True
 
     else:
       fail("rust_library, rust_binary and rust_test targets can only depend " +
            "on rust_library or cc_library targets.")
 
+  print(symlinked_libs)
+
   for symlinked_lib in symlinked_libs:
     setup_cmd += [_create_setup_cmd(symlinked_lib, deps_dir, in_runfiles)]
 
+  for unique_symlinked_lib in unique_symlinked_libs:
+    setup_cmd += [_create_setup_cmd(unique_symlinked_lib, deps_dir, in_runfiles, hash_path=False)]
+
   search_flags = []
   if has_rlib:
     search_flags += ["-L dependency=%s" % deps_dir]