59 lines
2.1 KiB
Makefile
59 lines
2.1 KiB
Makefile
# $FreeBSD$
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# The include file <bsd.init.mk> includes <bsd.opts.mk>,
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# ../Makefile.inc and <bsd.own.mk>; this is used at the
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# top of all <bsd.*.mk> files that actually "build something".
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# bsd.opts.mk is included early so Makefile.inc can use the
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# MK_FOO variables.
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.if !target(__<bsd.init.mk>__)
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__<bsd.init.mk>__:
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.include <bsd.opts.mk>
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.-include "local.init.mk"
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.if exists(${.CURDIR}/../Makefile.inc)
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.include "${.CURDIR}/../Makefile.inc"
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.endif
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.include <bsd.own.mk>
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.MAIN: all
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# Some targets need to know when something may build. This is used to
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# optimize targets that are only needed when building something, such as
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# (not) reading in depend files. For DIRDEPS_BUILD, it will only calculate
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# the dependency graph at .MAKE.LEVEL==0, so nothing should be built there.
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# Skip "build" logic if:
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# - DIRDEPS_BUILD at MAKELEVEL 0
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# - make -V is used without an override
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# - make install is used without other targets. This is to avoid breaking
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# things like 'make all install' or 'make foo install'.
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# - non-build targets are called
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.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.LEVEL:U1} == 0 && \
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${BUILD_AT_LEVEL0:Uyes:tl} == "no" && !make(clean*)
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_SKIP_BUILD= not building at level 0
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.elif !empty(.MAKEFLAGS:M-V${_V_DO_BUILD}) || \
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${.TARGETS:M*install*} == ${.TARGETS} || \
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make(clean*) || make(obj) || make(analyze) || make(print-dir) || \
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make(destroy*)
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# Skip building, but don't show a warning.
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_SKIP_BUILD=
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.endif
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.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.LEVEL} > 0 && !empty(_SKIP_BUILD)
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.warning ${_SKIP_BUILD}
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.endif
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beforebuild: .PHONY .NOTMAIN
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.if !defined(_SKIP_BUILD)
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all: beforebuild .WAIT
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.endif
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.if ${MK_META_MODE} == "yes"
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.if !exists(/dev/filemon) && \
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${UPDATE_DEPENDFILE:Uyes:tl} != "no" && !defined(NO_FILEMON) && \
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!make(showconfig) && !make(print-dir) && ${.MAKEFLAGS:M-V} == ""
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.warning The filemon module (/dev/filemon) is not loaded.
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.warning META_MODE is less useful for incremental builds without filemon.
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.warning 'kldload filemon' or pass -DNO_FILEMON to suppress this warning.
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.endif
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.endif # ${MK_META_MODE} == "yes"
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.endif # !target(__<bsd.init.mk>__)
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