diff --git a/WORKSPACE b/WORKSPACE
index 87a57de..709fbe7 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -54,3 +54,6 @@ load("@rules_proto//proto:repositories.bzl", "rules_proto_dependencies", "rules_
 rules_proto_dependencies()
 
 rules_proto_toolchains()
+
+load("//cc:repositories.bzl", "rules_cc_toolchains")
+rules_cc_toolchains()
diff --git a/cc/private/toolchain/osx_cc_configure.bzl b/cc/private/toolchain/osx_cc_configure.bzl
index db41831..2412a74 100644
--- a/cc/private/toolchain/osx_cc_configure.bzl
+++ b/cc/private/toolchain/osx_cc_configure.bzl
@@ -24,7 +24,6 @@ load(
 load(
     ":unix_cc_configure.bzl",
     "configure_unix_toolchain",
-    "find_cc",
     "get_env",
     "get_escaped_cxx_inc_directories",
 )
@@ -64,7 +63,6 @@ def configure_osx_toolchain(repository_ctx, overriden_tools):
         "@bazel_tools//tools/objc:xcrunwrapper.sh",
         "@bazel_tools//tools/osx/crosstool:BUILD.tpl",
         "@bazel_tools//tools/osx/crosstool:cc_toolchain_config.bzl",
-        "@bazel_tools//tools/osx/crosstool:wrapped_ar.tpl",
         "@bazel_tools//tools/osx/crosstool:wrapped_clang.cc",
         "@bazel_tools//tools/osx:xcode_locator.m",
     ])
@@ -82,7 +80,13 @@ def configure_osx_toolchain(repository_ctx, overriden_tools):
         fail("BAZEL_USE_XCODE_TOOLCHAIN is set to 1 but Bazel couldn't find Xcode installed on the " +
              "system. Verify that 'xcode-select -p' is correct.")
     if xcode_toolchains:
-        cc = find_cc(repository_ctx, overriden_tools = {})
+        # For Xcode toolchains, there's no reason to use anything other than
+        # wrapped_clang, so that we still get the Bazel Xcode placeholder
+        # substitution and other behavior for actions that invoke this
+        # cc_wrapper.sh script. The wrapped_clang binary is already hardcoded
+        # into the Objective-C crosstool actions, anyway, so this ensures that
+        # the C++ actions behave consistently.
+        cc = repository_ctx.path("wrapped_clang")
         repository_ctx.template(
             "cc_wrapper.sh",
             paths["@rules_cc//cc/private/toolchain:osx_cc_wrapper.sh.tpl"],
@@ -103,10 +107,6 @@ def configure_osx_toolchain(repository_ctx, overriden_tools):
             paths["@bazel_tools//tools/objc:make_hashed_objlist.py"],
             "make_hashed_objlist.py",
         )
-        repository_ctx.symlink(
-            paths["@bazel_tools//tools/osx/crosstool:wrapped_ar.tpl"],
-            "wrapped_ar",
-        )
         repository_ctx.symlink(
             paths["@bazel_tools//tools/osx/crosstool:cc_toolchain_config.bzl"],
             "cc_toolchain_config.bzl",
@@ -118,7 +118,10 @@ def configure_osx_toolchain(repository_ctx, overriden_tools):
             "env",
             "-i",
             "xcrun",
+            "--sdk",
+            "macosx",
             "clang",
+            "-mmacosx-version-min=10.9",
             "-std=c++11",
             "-lc++",
             "-o",
diff --git a/cc/private/toolchain/unix_cc_configure.bzl b/cc/private/toolchain/unix_cc_configure.bzl
index 124c8e2..cbe6f91 100644
--- a/cc/private/toolchain/unix_cc_configure.bzl
+++ b/cc/private/toolchain/unix_cc_configure.bzl
@@ -256,7 +256,7 @@ def _get_no_canonical_prefixes_opt(repository_ctx, cc):
         )
     return opt
 
-def _get_env(repository_ctx):
+def get_env(repository_ctx):
     """Convert the environment in a list of export if in Homebrew. Doesn't %-escape the result!
 
     Args:
diff --git a/cc/repositories.bzl b/cc/repositories.bzl
index bb41c86..5ddb373 100644
--- a/cc/repositories.bzl
+++ b/cc/repositories.bzl
@@ -9,6 +9,7 @@
 # Ideally we'd delete this entire file.
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+load("//cc/private/toolchain:cc_configure.bzl", "cc_configure")
 
 def rules_cc_dependencies():
     _maybe(
@@ -22,6 +23,9 @@ def rules_cc_dependencies():
         ],
     )
 
+def rules_cc_toolchains(*args):
+    cc_configure(*args)
+
 def _maybe(repo_rule, name, **kwargs):
     if not native.existing_rule(name):
         repo_rule(name = name, **kwargs)