--- /dev/null
+#ifndef _LAUNCH_INTERNAL_H_
+#define _LAUNCH_INTERNAL_H_
+/*
+ * Copyright (c) 2007 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_APACHE_LICENSE_HEADER_START@
+ *
+ * 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.
+ *
+ * @APPLE_APACHE_LICENSE_HEADER_END@
+ */
+
+#pragma GCC visibility push(default)
+
+size_t launch_data_pack(launch_data_t d, void *where, size_t len, int *fd_where, size_t *fdslotsleft);
+launch_data_t launch_data_unpack(void *data, size_t data_size, int *fds, size_t fd_cnt, size_t *data_offset, size_t *fdoffset);
+
+#pragma GCC visibility pop
+
+#endif