diff --git a/cc/BUILD b/cc/BUILD
index 9bf862a..bcfa42f 100644
--- a/cc/BUILD
+++ b/cc/BUILD
@@ -45,6 +45,17 @@ filegroup(
     visibility = ["//visibility:public"],
 )
 
+filegroup(
+    name = "bzl_srcs",
+    srcs = glob([
+        "**/*.bzl",
+    ]) + [
+        "//cc/private/rules_impl:bzl_srcs",
+        "//cc/private/toolchain:bzl_srcs",
+    ],
+    visibility = ["//visibility:public"],
+)
+
 filegroup(
     name = "srcs",
     srcs = glob([
diff --git a/cc/private/rules_impl/BUILD b/cc/private/rules_impl/BUILD
index 37f326d..dc74dfe 100644
--- a/cc/private/rules_impl/BUILD
+++ b/cc/private/rules_impl/BUILD
@@ -2,6 +2,13 @@ package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])  # Apache 2.0
 
+filegroup(
+    name = "bzl_srcs",
+    srcs = glob([
+        "**/*.bzl",
+    ]),
+)
+
 filegroup(
     name = "srcs",
     srcs = glob([
diff --git a/cc/private/toolchain/BUILD b/cc/private/toolchain/BUILD
index 3026ac6..6915d5b 100644
--- a/cc/private/toolchain/BUILD
+++ b/cc/private/toolchain/BUILD
@@ -65,6 +65,11 @@ filegroup(
     srcs = [],
 )
 
+filegroup(
+    name = "bzl_srcs",
+    srcs = glob(["**/*.bzl"]),
+)
+
 filegroup(
     name = "srcs",
     srcs = glob(["**"]),
diff --git a/tools/migration/BUILD b/tools/migration/BUILD
index 443299b..91c5d54 100644
--- a/tools/migration/BUILD
+++ b/tools/migration/BUILD
@@ -132,7 +132,10 @@ filegroup(
     ],
 )
 
-exports_files(["ctoolchain_compare.bzl"])
+exports_files([
+    "cc_toolchain_config_comparator.bzl",
+    "ctoolchain_compare.bzl",
+])
 
 bzl_library(
     name = "ctoolchain_compare_bzl",