2017-11-18 21:01:12 +01:00
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#
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# This is included very early from share/mk/src.sys.env.mk, after
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# /etc/src-env.conf but before /etc/make.conf, /etc/src.conf, or OBJDIR
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# handling.
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# - It is not safe to use .OBJDIR/OBJTOP/OBJROOT here.
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# - __ENV_ONLY_OPTIONS have been parsed by now except for opporutunistic
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# MK_AUTO_OBJ.
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#
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.if ${MK_DIRDEPS_BUILD} == "no"
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# For AUTO_OBJ many targets do not need object directories created at top-level
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# for each visited directory. Only when things are being built are they
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# needed. Having AUTO_OBJ disabled in a build target is fine as it should
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# fallback to running 'make obj' as needed. If a target is not in this list
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# then it is ran with MK_AUTO_OBJ=no in environment.
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# 'showconfig' is in the list to avoid forcing MK_AUTO_OBJ=no for it.
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AUTO_OBJ_TGT_WHITELIST+= \
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_* all all-man build* depend everything *toolchain* includes \
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libraries obj objlink showconfig tags xdev xdev-build native-xtools \
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stage* create-packages* real-packages sign-packages package-pkg \
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tinderbox universe* kernel kernels world worlds bmake
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# Only allow AUTO_OBJ for the whitelisted targets. See AUTO_OBJ_TGT_WHITELIST
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# above. MK_AUTO_OBJ not checked here for "yes" as it may not yet be enabled
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# since it is opportunistic.
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.if empty(.MAKEOVERRIDES:MMK_AUTO_OBJ)
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.for _tgt in ${AUTO_OBJ_TGT_WHITELIST}
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.if make(${_tgt})
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_CAN_USE_AUTO_OBJ?= yes
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.endif
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.endfor
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.if !defined(_CAN_USE_AUTO_OBJ)
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_MAKEARGS+= MK_AUTO_OBJ=no
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MK_AUTO_OBJ= no
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2017-11-18 21:01:15 +01:00
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# This will prevent src.sys.obj.mk from opportunistically enabling AUTO_OBJ
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# in this make execution and for sub-makes. For all of these targets we
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# just want to read any existing OBJDIR but we don't care if we can create
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# or write to them.
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.MAKEOVERRIDES+= MK_AUTO_OBJ
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2017-12-05 22:29:47 +01:00
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.else
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# For top-level we always assume the MAKEOBJDIRPREFIX is writable rather than
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# falling back to .CURDIR.
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__objdir_writable= yes
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2017-11-18 21:01:12 +01:00
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.endif
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.endif # empty(.MAKEOVERRIDES:MMK_AUTO_OBJ)
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.endif # ${MK_DIRDEPS_BUILD} == "no"
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