--- /dev/null
+/*
+ * Copyright (c) 2018 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#ifndef _LIBSYSTEMCONFIGURATION_INTERNAL_H
+#define _LIBSYSTEMCONFIGURATION_INTERNAL_H
+
+#include <os/availability.h>
+#include <TargetConditionals.h>
+#include <sys/cdefs.h>
+
+extern const unsigned char * libsystem_configurationVersionString;
+extern const double libsystem_configurationVersionNumber;
+
+__BEGIN_DECLS
+
+void
+_libSC_info_fork_prepare (void);
+
+void
+_libSC_info_fork_parent (void);
+
+void
+_libSC_info_fork_child (void);
+
+__END_DECLS
+
+#endif // _LIBSYSTEMCONFIGURATION_INTERNAL_H