65 lines
1.8 KiB
Makefile
65 lines
1.8 KiB
Makefile
#
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# RCSid:
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# $Id: auto.dep.mk,v 1.2 2010/04/19 17:37:19 sjg Exp $
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#
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# @(#) Copyright (c) 2010, Simon J. Gerraty
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#
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# This file is provided in the hope that it will
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# be of use. There is absolutely NO WARRANTY.
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# Permission to copy, redistribute or otherwise
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# use this file is hereby granted provided that
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# the above copyright notice and this notice are
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# left intact.
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#
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# Please send copies of changes and bug-fixes to:
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# sjg@crufty.net
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#
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# This module provides automagic dependency generation along the
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# lines suggested in the GNU make.info
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# set MKDEP=auto.dep and dep.mk will include us
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# This version differs from autodep.mk, in that
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# we use ${.TARGET:T}.d rather than ${.TARGET:T:R}.d
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# this makes it simpler to get the args to -MF and -MT right
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# and ensure we can simply include all the .d files.
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#
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# However suffix rules do not work with something like .o.d so we
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# don't even try to handle 'make depend' gracefully.
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# dep.mk will handle that itself.
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#
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.if !target(__${.PARSEFILE}__)
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__${.PARSEFILE}__:
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# this what bmake > 20100401 will look for
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.MAKE.DEPENDFILE ?= .depend
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# set this to -MMD to ignore /usr/include
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# actually it ignores <> so may not be a great idea
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CFLAGS_MD ?= -MD
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# -MF etc not available on all gcc versions.
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CFLAGS_MF ?= -MF ${.TARGET:T}.d -MT ${.TARGET:T}
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CFLAGS += ${CFLAGS_MD} ${CFLAGS_MF}
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CXXFLAGS += ${CFLAGS_MD} ${CFLAGS_MF}
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CLEANFILES += .depend ${.MAKE.DEPENDFILE} *.d
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# skip generating dependfile for misc targets
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.if ${.TARGETS:Uall:M*all} != ""
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.END: ${.MAKE.DEPENDFILE}
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.endif
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# doing 'make depend' isn't a big win with this model
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.if !target(depend)
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depend: ${.MAKE.DEPENDFILE}
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.endif
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# this is trivial
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${.MAKE.DEPENDFILE}: ${OBJS} ${POBJS} ${SOBJS}
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-@for f in ${.ALLSRC:M*o:T:O:u:%=%.d}; do \
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echo ".-include \"$$f\""; \
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done > $@
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.endif
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