Fix sanity checks and "really" add the libuv submodule to third_party.

bazel/grpc_deps.bzl

@@ -269,13 +269,13 @@ def grpc_deps():
         )
 
     if "libuv" not in native.existing_rules():
-       http_archive(
-           name = "zlib",
-           build_file = "@com_github_grpc_grpc//third_party:libuv.BUILD",
-           sha256 = "",
-           strip_prefix = "libuv-15ae750151ac9341e5945eb38f8982d59fb99201",
-           url = "https://github.com/libuv/libuv/archive/15ae750151ac9341e5945eb38f8982d59fb99201.tar.gz",
-       )
+        http_archive(
+            name = "libuv",
+            build_file = "@com_github_grpc_grpc//third_party:libuv.BUILD",
+            sha256 = "dfb4fe1ff0b47340978490a14bf253475159ecfcbad46ab2a350c78f9ce3360f",
+            strip_prefix = "libuv-15ae750151ac9341e5945eb38f8982d59fb99201",
+            url = "https://github.com/libuv/libuv/archive/15ae750151ac9341e5945eb38f8982d59fb99201.tar.gz",
+        )
 
     grpc_python_deps()
 

third_party/libuv

@@ -0,0 +1 @@
+Subproject commit 6432886e0d1adb3f76eb0eee55584af4f18ae31f

third_party/libuv.BUILD

@@ -156,7 +156,6 @@ cc_library(
         "-D_LARGEFILE_SOURCE",
         "-D_FILE_OFFSET_BITS=64",
         "-D_GNU_SOURCE",
-        "-DHAVE_CONFIG_H",
         "-pthread",
         "--std=gnu89",
         "-pedantic",

tools/run_tests/sanity/check_submodules.sh

@@ -36,6 +36,7 @@ cat << EOF | awk '{ print $1 }' | sort > "$want_submodules"
  28f50e0fed19872e0fd50dd23ce2ee8cd759338e third_party/gflags (v2.2.0-5-g30dbc81)
  80ed4d0bbf65d57cc267dfc63bd2584557f11f9b third_party/googleapis (common-protos-1_3_1-915-g80ed4d0bb)
  c9ccac7cb7345901884aabf5d1a786cfa6e2f397 third_party/googletest (6e2f397)
+ 15ae750151ac9341e5945eb38f8982d59fb99201 third_party/libuv (v1.34.0)
  09745575a923640154bcf307fba8aedff47f240a third_party/protobuf (v3.7.0-rc.2-247-g09745575)
  e143189bf6f37b3957fb31743df6a1bcf4a8c685 third_party/protoc-gen-validate (v0.0.10)
  94324803a497c8f76dbc78df393ef629d3a9f3c3 third_party/udpa (heads/master)