diff --git a/BUILD b/BUILD
index e9d434b2..840ccd3a 100644
--- a/BUILD
+++ b/BUILD
@@ -1,4 +1,5 @@
-load("//:bazel/variables.bzl", "COPTS", "LINKOPTS")
+load("@rules_cc//cc:defs.bzl", "cc_library")
+load("@proxy_wasm_cpp_host//bazel:variables.bzl", "COPTS")
 
 licenses(["notice"])  # Apache 2
 
diff --git a/WORKSPACE b/WORKSPACE
index 874d39b1..77ecd3a0 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -1,89 +1,9 @@
 workspace(name = "proxy_wasm_cpp_host")
 
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
+load("@proxy_wasm_cpp_host//bazel:repositories.bzl", "proxy_wasm_cpp_host_repositories")
 
-git_repository(
-    name = "proxy_wasm_cpp_sdk",
-    commit = "1b5f69ce1535b0c21f88c4af4ebf0ec51d255abe",
-    remote = "https://github.com/proxy-wasm/proxy-wasm-cpp-sdk",
-)
+proxy_wasm_cpp_host_repositories()
 
-http_archive(
-    name = "com_google_absl",
-    sha256 = "19391fb4882601a65cb648d638c11aa301ce5f525ef02da1a9eafd22f72d7c59",
-    strip_prefix = "abseil-cpp-37dd2562ec830d547a1524bb306be313ac3f2556",
-    # 2020-01-29
-    urls = ["https://github.com/abseil/abseil-cpp/archive/37dd2562ec830d547a1524bb306be313ac3f2556.tar.gz"],
-)
+load("@proxy_wasm_cpp_host//bazel:dependencies.bzl", "proxy_wasm_cpp_host_dependencies")
 
-# required by com_google_protobuf
-http_archive(
-    name = "bazel_skylib",
-    sha256 = "97e70364e9249702246c0e9444bccdc4b847bed1eb03c5a3ece4f83dfe6abc44",
-    urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.0.2/bazel-skylib-1.0.2.tar.gz",
-        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.0.2/bazel-skylib-1.0.2.tar.gz",
-    ],
-)
-
-load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
-
-bazel_skylib_workspace()
-
-# rust rules
-http_archive(
-    name = "io_bazel_rules_rust",
-    sha256 = "7401878bf966325bbec5224eeb4ff7e8762681070b401acaa168da68d383563a",
-    strip_prefix = "rules_rust-9741a32e50a8c50c504c0931111bb6048d6d6888",
-    url = "https://github.com/bazelbuild/rules_rust/archive/9741a32e50a8c50c504c0931111bb6048d6d6888.tar.gz",
-)
-
-load("@io_bazel_rules_rust//rust:repositories.bzl", "rust_repositories")
-
-rust_repositories()
-
-load("@io_bazel_rules_rust//:workspace.bzl", "rust_workspace")
-
-rust_workspace()
-
-load("//bazel/cargo:crates.bzl", "proxy_wasm_cpp_host_raze__fetch_remote_crates")
-
-proxy_wasm_cpp_host_raze__fetch_remote_crates()
-
-git_repository(
-    name = "com_google_protobuf",
-    commit = "655310ca192a6e3a050e0ca0b7084a2968072260",
-    remote = "https://github.com/protocolbuffers/protobuf",
-    shallow_since = "1565024848 -0700",
-)
-
-http_archive(
-    name = "boringssl",
-    sha256 = "bb55b0ed2f0cb548b5dce6a6b8307ce37f7f748eb9f1be6bfe2d266ff2b4d52b",
-    strip_prefix = "boringssl-2192bbc878822cf6ab5977d4257a1339453d9d39",
-    urls = ["https://github.com/google/boringssl/archive/2192bbc878822cf6ab5977d4257a1339453d9d39.tar.gz"],
-)
-
-http_archive(
-    name = "com_google_googletest",
-    sha256 = "9dc9157a9a1551ec7a7e43daea9a694a0bb5fb8bec81235d8a1e6ef64c716dcb",
-    strip_prefix = "googletest-release-1.10.0",
-    urls = ["https://github.com/google/googletest/archive/release-1.10.0.tar.gz"],
-)
-
-http_archive(
-    name = "wasmtime",
-    build_file = "@proxy_wasm_cpp_host//bazel/external:wasmtime.BUILD",
-    sha256 = "7874feb1026bbef06796bd5ab80e73f15b8e83752bde8dc93994f5bc039a4952",
-    strip_prefix = "wasmtime-0.21.0",
-    url = "https://github.com/bytecodealliance/wasmtime/archive/v0.21.0.tar.gz",
-)
-
-http_archive(
-    name = "wasm_c_api",
-    build_file = "@proxy_wasm_cpp_host//bazel/external:wasm-c-api.BUILD",
-    sha256 = "aea8cd095e9937f1e14f2c93e026317b197eb2345e7a817fe3932062eb7b792c",
-    strip_prefix = "wasm-c-api-d9a80099d496b5cdba6f3fe8fc77586e0e505ddc",
-    url = "https://github.com/WebAssembly/wasm-c-api/archive/d9a80099d496b5cdba6f3fe8fc77586e0e505ddc.tar.gz",
-)
+proxy_wasm_cpp_host_dependencies()
diff --git a/bazel/BUILD b/bazel/BUILD
new file mode 100644
index 00000000..e69de29b
diff --git a/bazel/dependencies.bzl b/bazel/dependencies.bzl
new file mode 100644
index 00000000..ef2163cf
--- /dev/null
+++ b/bazel/dependencies.bzl
@@ -0,0 +1,20 @@
+# Copyright 2020 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("@io_bazel_rules_rust//rust:repositories.bzl", "rust_repositories")
+load("@proxy_wasm_cpp_host//bazel/cargo:crates.bzl", "proxy_wasm_cpp_host_raze__fetch_remote_crates")
+
+def proxy_wasm_cpp_host_dependencies():
+    rust_repositories()
+    proxy_wasm_cpp_host_raze__fetch_remote_crates()
diff --git a/bazel/repositories.bzl b/bazel/repositories.bzl
new file mode 100644
index 00000000..93eabfe1
--- /dev/null
+++ b/bazel/repositories.bzl
@@ -0,0 +1,75 @@
+# Copyright 2020 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("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+def proxy_wasm_cpp_host_repositories():
+    http_archive(
+        name = "proxy_wasm_cpp_sdk",
+        sha256 = "b97e3e716b1f38dc601487aa0bde72490bbc82b8f3ad73f1f3e69733984955df",
+        strip_prefix = "proxy-wasm-cpp-sdk-956f0d500c380cc1656a2d861b7ee12c2515a664",
+        urls = ["https://github.com/proxy-wasm/proxy-wasm-cpp-sdk/archive/956f0d500c380cc1656a2d861b7ee12c2515a664.tar.gz"],
+    )
+
+    http_archive(
+        name = "boringssl",
+        sha256 = "bb55b0ed2f0cb548b5dce6a6b8307ce37f7f748eb9f1be6bfe2d266ff2b4d52b",
+        strip_prefix = "boringssl-2192bbc878822cf6ab5977d4257a1339453d9d39",
+        urls = ["https://github.com/google/boringssl/archive/2192bbc878822cf6ab5977d4257a1339453d9d39.tar.gz"],
+    )
+
+    http_archive(
+        name = "com_google_googletest",
+        sha256 = "9dc9157a9a1551ec7a7e43daea9a694a0bb5fb8bec81235d8a1e6ef64c716dcb",
+        strip_prefix = "googletest-release-1.10.0",
+        urls = ["https://github.com/google/googletest/archive/release-1.10.0.tar.gz"],
+    )
+
+    http_archive(
+        name = "wasmtime",
+        build_file = "@proxy_wasm_cpp_host//bazel/external:wasmtime.BUILD",
+        sha256 = "7874feb1026bbef06796bd5ab80e73f15b8e83752bde8dc93994f5bc039a4952",
+        strip_prefix = "wasmtime-0.21.0",
+        url = "https://github.com/bytecodealliance/wasmtime/archive/v0.21.0.tar.gz",
+    )
+
+    http_archive(
+        name = "wasm_c_api",
+        build_file = "@proxy_wasm_cpp_host//bazel/external:wasm-c-api.BUILD",
+        sha256 = "aea8cd095e9937f1e14f2c93e026317b197eb2345e7a817fe3932062eb7b792c",
+        strip_prefix = "wasm-c-api-d9a80099d496b5cdba6f3fe8fc77586e0e505ddc",
+        url = "https://github.com/WebAssembly/wasm-c-api/archive/d9a80099d496b5cdba6f3fe8fc77586e0e505ddc.tar.gz",
+    )
+
+    http_archive(
+        name = "com_google_absl",
+        sha256 = "19391fb4882601a65cb648d638c11aa301ce5f525ef02da1a9eafd22f72d7c59",
+        strip_prefix = "abseil-cpp-37dd2562ec830d547a1524bb306be313ac3f2556",
+        # 2020-01-29
+        urls = ["https://github.com/abseil/abseil-cpp/archive/37dd2562ec830d547a1524bb306be313ac3f2556.tar.gz"],
+    )
+
+    http_archive(
+        name = "io_bazel_rules_rust",
+        sha256 = "442a102e2a6f6c75e10d43f21c0c30218947a3e827d91529ced7380c5fec05f0",
+        strip_prefix = "rules_rust-39523e32ac0bd64f5d60154114a42e61e58ffd17",
+        url = "https://github.com/bazelbuild/rules_rust/archive/39523e32ac0bd64f5d60154114a42e61e58ffd17.tar.gz",
+    )
+
+    http_archive(
+        name = "com_google_protobuf",
+        sha256 = "59621f4011a95df270748dcc0ec1cc51946473f0e140d4848a2f20c8719e43aa",
+        strip_prefix = "protobuf-655310ca192a6e3a050e0ca0b7084a2968072260",
+        url = "https://github.com/protocolbuffers/protobuf/archive/655310ca192a6e3a050e0ca0b7084a2968072260.tar.gz",
+    )
diff --git a/test/test_data/wasm.bzl b/bazel/wasm.bzl
similarity index 100%
rename from test/test_data/wasm.bzl
rename to bazel/wasm.bzl
diff --git a/test/BUILD b/test/BUILD
index 803e59e9..82daf715 100644
--- a/test/BUILD
+++ b/test/BUILD
@@ -1,5 +1,5 @@
 load("@rules_cc//cc:defs.bzl", "cc_test")
-load("//:bazel/variables.bzl", "COPTS", "LINKOPTS")
+load("@proxy_wasm_cpp_host//bazel:variables.bzl", "COPTS", "LINKOPTS")
 
 cc_test(
     name = "null_vm_test",
diff --git a/test/test_data/BUILD b/test/test_data/BUILD
index d6797368..051f051c 100644
--- a/test/test_data/BUILD
+++ b/test/test_data/BUILD
@@ -1,4 +1,4 @@
-load("//test/test_data:wasm.bzl", "wasm_rust_binary")
+load("@proxy_wasm_cpp_host//bazel:wasm.bzl", "wasm_rust_binary")
 
 package(default_visibility = ["//visibility:public"])
 
diff --git a/test/test_data/trap.rs b/test/test_data/trap.rs
index 8fb2a413..2be4cab2 100644
--- a/test/test_data/trap.rs
+++ b/test/test_data/trap.rs
@@ -17,7 +17,7 @@ pub extern "C" fn trigger() {
     one();
 }
 #[no_mangle]
-pub extern "C" fn trigger2(val: i32) -> i32 {
+pub extern "C" fn trigger2(_val: i32) -> i32 {
     three();
     0
 }