Avoid deduplicating linkopts of cc_shared_library dependencies.

Author: katzdm

src/main/starlark/builtins_bzl/common/cc/cc_shared_library.bzl

@@ -298,7 +298,7 @@ def _wrap_static_library_with_alwayslink(ctx, feature_configuration, cc_toolchai
     return cc_common.create_linker_input(
         owner = linker_input.owner,
         libraries = depset(direct = new_libraries_to_link),
-        user_link_flags = depset(direct = linker_input.user_link_flags),
+        user_link_flags = linker_input.user_link_flags,
         additional_inputs = depset(direct = linker_input.additional_inputs),
     )
 

src/main/starlark/tests/builtins_bzl/cc/cc_shared_library/test5/BUILD.builtin_test

@@ -0,0 +1,24 @@
+load("@rules_cc//cc:cc_library.bzl", "cc_library")
+load("@rules_cc//cc:cc_shared_library.bzl", "cc_shared_library")
+load("@rules_cc//cc:cc_test.bzl", "cc_test")
+
+package(default_visibility = ["//src/main/starlark/tests/builtins_bzl/cc/cc_shared_library:__subpackages__"])
+
+licenses(["notice"])
+
+cc_library(
+    name = "bar",
+    srcs = ["bar.cc"],
+    linkopts = ["-framework", "Security", "-framework", "IOKit"],
+)
+
+cc_shared_library(
+    name = "bar_so",
+    deps = [":bar"],
+)
+
+cc_test(
+    name = "cc_test",
+    srcs = ["main.cc"],
+    dynamic_deps = select({"@platforms//os:macos": [":bar_so"]}),
+)

src/main/starlark/tests/builtins_bzl/cc/cc_shared_library/test5/bar.cc

@@ -0,0 +1,14 @@
+// Copyright 2024 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+int bar() { return 42; }

src/main/starlark/tests/builtins_bzl/cc/cc_shared_library/test5/main.cc

@@ -0,0 +1,20 @@
+// Copyright 2025 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#include <iostream>
+
+
+int main() {
+  std::cout << "hello, world!" << std::endl;
+  return 0;
+}