--- /dev/null
+# This private directory is necessary for BSD headers bound for
+# `/usr/local/include/sys/` and the System framework.
+
+export MakeInc_cmd=${SRCROOT}/makedefs/MakeInc.cmd
+export MakeInc_def=${SRCROOT}/makedefs/MakeInc.def
+export MakeInc_rule=${SRCROOT}/makedefs/MakeInc.rule
+export MakeInc_dir=${SRCROOT}/makedefs/MakeInc.dir
+
+include $(MakeInc_cmd)
+include $(MakeInc_def)
+
+INSTALL_MI_DIR = sys
+INCDIR = $(SDKHEADERSROOT)/usr/local/include
+DRIVERKITINCDIR = $(DRIVERKITSDKHEADERSROOT)/usr/local/include
+
+# Installs header files for Apple internal use in
+# $(DSTROOT)/usr/local/include/sys
+
+INSTALL_MI_LIST = \
+ kdebug_private.h
+
+INSTALL_DRIVERKIT_MI_LIST = \
+ kdebug_private.h
+
+# Installs header files for Apple internal use in
+# $(DSTROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/sys
+
+INSTALL_MI_LCL_LIST = \
+ kdebug_private.h
+
+EXPORT_MI_DIR = sys
+
+EXPORT_MI_LIST = \
+ kdebug_private.h
+
+include $(MakeInc_rule)
+include $(MakeInc_dir)