--- /dev/null
+++ BUILD.bazel
@@ -0,0 +1,38 @@
+# Copyright 2023 Google LLC
+#
+# 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.
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+licenses(["notice"])
+
+cc_library(
+    name = "antlr4-cpp-runtime",
+    srcs = glob(["runtime/src/**/*.cpp"]),
+    hdrs = ["runtime/src/antlr4-runtime.h"],
+    copts = ["-fexceptions"],
+    defines = ["ANTLR4CPP_USING_ABSEIL"],
+    features = ["-use_header_modules"],
+    includes = ["runtime/src"],
+    textual_hdrs = glob(
+        ["runtime/src/**/*.h"],
+        exclude = ["runtime/src/antlr4-runtime.h"],
+    ),
+    visibility = ["//visibility:public"],
+    deps = [
+        "@com_google_absl//absl/base",
+        "@com_google_absl//absl/base:core_headers",
+        "@com_google_absl//absl/container:flat_hash_map",
+        "@com_google_absl//absl/container:flat_hash_set",
+        "@com_google_absl//absl/synchronization",
+    ],
+)