diff --git a/darwin-x86/protobuf/MODULE_LICENSE_BSD_LIKE b/darwin-x86/protobuf/MODULE_LICENSE_BSD_LIKE
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/darwin-x86/protobuf/MODULE_LICENSE_BSD_LIKE
diff --git a/darwin-x86/protobuf/PREBUILT b/darwin-x86/protobuf/PREBUILT
new file mode 100644
index 0000000..e9fcf94
--- /dev/null
+++ b/darwin-x86/protobuf/PREBUILT
@@ -0,0 +1,2 @@
+The binaries in this prebuilt directory can be rebuilt using
+the source in external/protobuf with build command "make aprotoc".
diff --git a/darwin-x86/protobuf/aprotoc b/darwin-x86/protobuf/aprotoc
new file mode 100755
index 0000000..dd2ed9c
--- /dev/null
+++ b/darwin-x86/protobuf/aprotoc
Binary files differ
diff --git a/linux-x86/protobuf/MODULE_LICENSE_BSD_LIKE b/linux-x86/protobuf/MODULE_LICENSE_BSD_LIKE
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/linux-x86/protobuf/MODULE_LICENSE_BSD_LIKE
diff --git a/linux-x86/protobuf/PREBUILT b/linux-x86/protobuf/PREBUILT
new file mode 100644
index 0000000..e9fcf94
--- /dev/null
+++ b/linux-x86/protobuf/PREBUILT
@@ -0,0 +1,2 @@
+The binaries in this prebuilt directory can be rebuilt using
+the source in external/protobuf with build command "make aprotoc".
diff --git a/linux-x86/protobuf/aprotoc b/linux-x86/protobuf/aprotoc
new file mode 100755
index 0000000..3a724e4
--- /dev/null
+++ b/linux-x86/protobuf/aprotoc
Binary files differ