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#
# RCSid:
# $Id: auto.dep.mk,v 1.1.1.1 2020/05/24 05:35:53 nia Exp $
#
# @(#) Copyright (c) 2010, Simon J. Gerraty
#
# This file is provided in the hope that it will
# be of use. There is absolutely NO WARRANTY.
# Permission to copy, redistribute or otherwise
# use this file is hereby granted provided that
# the above copyright notice and this notice are
# left intact.
#
# Please send copies of changes and bug-fixes to:
# sjg@crufty.net
#
# This module provides automagic dependency generation along the
# lines suggested in the GNU make.info
# set MKDEP_MK=auto.dep.mk and dep.mk will include us
# This version differs from autodep.mk, in that
# we use ${.TARGET:T}.d rather than ${.TARGET:T:R}.d
# this makes it simpler to get the args to -MF and -MT right
# and ensure we can simply include all the .d files.
#
# However suffix rules do not work with something like .o.d so we
# don't even try to handle 'make depend' gracefully.
# dep.mk will handle that itself.
#
.if !target(__${.PARSEFILE}__)
__${.PARSEFILE}__:
# this what bmake > 20100401 will look for
.MAKE.DEPENDFILE ?= .depend
# set this to -MMD to ignore /usr/include
# actually it ignores <> so may not be a great idea
CFLAGS_MD ?= -MD
# -MF etc not available on all gcc versions.
CFLAGS_MF ?= -MF ${.TARGET:T}.d -MT ${.TARGET:T}
CFLAGS += ${CFLAGS_MD} ${CFLAGS_MF}
CXXFLAGS += ${CFLAGS_MD} ${CFLAGS_MF}
CLEANFILES += .depend ${.MAKE.DEPENDFILE} *.d
.if ${MAKE_VERSION} < 20160218
# skip generating dependfile for misc targets
.if ${.TARGETS:Uall:M*all} != ""
.END: ${.MAKE.DEPENDFILE}
.endif
# doing 'make depend' isn't a big win with this model
.if !target(depend)
depend: ${.MAKE.DEPENDFILE}
.endif
# this is trivial
${.MAKE.DEPENDFILE}: ${OBJS} ${POBJS} ${SOBJS}
-@for f in ${.ALLSRC:M*o:T:O:u:%=%.d}; do \
echo ".-include \"$$f\""; \
done > $@
.else
# we have .dinclude
.if empty(_SKIP_BUILD)
_all_objs = ${OBJS} ${POBJS} ${SOBJS}
.for d in ${_all_objs:M*o:T:O:u:%=%.d}
.dinclude <$d>
.endfor
.endif
.endif
.endif
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