diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..65ff977
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "apple/dyld"]
+	path = apple/dyld
+	url = git@github.com:apple-oss-distributions/dyld.git
+[submodule "apple/objc4"]
+	path = apple/objc4
+	url = git@github.com:apple-oss-distributions/objc4.git
diff --git a/apple/dyld b/apple/dyld
new file mode 160000
index 0000000..c8a445f
--- /dev/null
+++ b/apple/dyld
@@ -0,0 +1 @@
+Subproject commit c8a445f88f9fc1713db34674e79b00e30723e79d
diff --git a/apple/objc4 b/apple/objc4
new file mode 160000
index 0000000..689525d
--- /dev/null
+++ b/apple/objc4
@@ -0,0 +1 @@
+Subproject commit 689525d556eb3dee1ffb700423bccf5ecc501dbf