This is xnu-11215.1.10. See this file in:
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
# These are System.framework headers
include $(MakeInc_cmd)
include $(MakeInc_def)
ALL_HDRS = $(shell (cd $(SOURCE); echo *.h))
# INSTINC_SUBDIRS = Headers
EXPINC_SUBDIRS = ${INSTINC_SUBDIRS}
# INSTALL_MI_DIR = .
INSTALL_SF_MI_LCL_LIST = $(ALL_HDRS)
INSTALL_MI_GEN_LIST = $(GENERATED_HEADERS)
include $(MakeInc_rule)
include $(MakeInc_dir)