updated BUILD files and MODULE.bazel for bazel 9

MODULE.bazel

@@ -118,28 +118,33 @@ filegroup(
 )
 
 # Create a repo that exposes system-installed sdbus-c++ and libsystemd to Bazel.
+#
+# Important portability note:
+# Avoid hardcoding distro-specific library directories (for example
+# /usr/lib/x86_64-linux-gnu vs /usr/lib64). Instead, link by soname and let the
+# system linker/search path resolve the actual shared object location.
 new_local_repository = use_repo_rule(
     "@bazel_tools//tools/build_defs/repo:local.bzl",
     "new_local_repository",
 )
 
-# Fedora/RHEL layout (lib64); see Ubuntu/Debian variant below
 new_local_repository(
     name = "sdbus_cpp",
     path = "/usr",
     build_file_content = """
 package(default_visibility = ["//visibility:public"])
 
-cc_import(
+load("@rules_cc//cc:defs.bzl", "cc_library")
+cc_library(
     name = "sdbus_cpp",
-    shared_library = "lib/x86_64-linux-gnu/libsdbus-c++.so",
     hdrs = glob(["include/sdbus-c++/**/*.h*"]),
     includes = ["include"],
+    linkopts = ["-lsdbus-c++"],
 )
 
-cc_import(
+cc_library(
     name = "libsystemd",
-    shared_library = "lib/x86_64-linux-gnu/libsystemd.so",
+    linkopts = ["-lsystemd"],
 )
 """,
 )

connections/file_share/BUILD

@@ -14,6 +14,8 @@
 
 licenses(["notice"])
 
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
 cc_binary(
     name = "file_share",
     srcs = ["main.cc"],

internal/platform/implementation/linux/BUILD

@@ -16,6 +16,7 @@
 
 licenses(["notice"])
 
+load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
 #refresh_compile_commands(
 #    name = "refresh_compile_commands",
 #

internal/platform/implementation/linux/generated/BUILD

@@ -13,6 +13,7 @@
 # limitations under the License.
 licenses(["notice"])
 
+load("@rules_cc//cc:defs.bzl", "cc_library")
 cc_library(
     name = "types",
     textual_hdrs = glob(["**/*.h"]),

sharing/linux/BUILD

@@ -13,6 +13,30 @@
 # limitations under the License.
 
 licenses(["notice"])
+load("@rules_cc//cc:defs.bzl", "cc_library", "cc_binary")
+
+cc_library(
+    name = "nearby_connections_service_linux",
+    srcs = ["nearby_connections_service_linux.cc"],
+    hdrs = [
+        "nearby_connections_service_linux.h",
+        "//sharing:nearby_connections_service.h",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//connections:core",
+        "//connections:core_types",
+        "//internal/base:file_path",
+        "//internal/platform:base",
+        "//internal/platform:logging",
+        "//internal/platform:mac_address",
+        "//sharing:connection_types",
+        "@com_google_absl//absl/container:flat_hash_map",
+        "@com_google_absl//absl/strings:string_view",
+        "@com_google_absl//absl/time",
+        "@com_google_absl//absl/types:span",
+    ],
+)
 
 cc_library(
     name = "nearby_sharing_service_linux",