1# $FreeBSD$ 2# 3# This is included very early from share/mk/src.sys.env.mk, after 4# /etc/src-env.conf but before /etc/make.conf, /etc/src.conf, or OBJDIR 5# handling. 6# - It is not safe to use .OBJDIR/OBJTOP/OBJROOT here. 7# - __ENV_ONLY_OPTIONS have been parsed by now except for opporutunistic 8# MK_AUTO_OBJ. 9# 10 11.if ${MK_DIRDEPS_BUILD} == "no" 12# For AUTO_OBJ many targets do not need object directories created at top-level 13# for each visited directory. Only when things are being built are they 14# needed. Having AUTO_OBJ disabled in a build target is fine as it should 15# fallback to running 'make obj' as needed. If a target is not in this list 16# then it is ran with MK_AUTO_OBJ=no in environment. 17# 'showconfig' is in the list to avoid forcing MK_AUTO_OBJ=no for it. 18AUTO_OBJ_TGT_WHITELIST+= \ 19 _* all all-man build* depend everything *toolchain* includes \ 20 libraries obj objlink showconfig tags xdev xdev-build native-xtools \ 21 stage* create-packages* real-packages sign-packages package-pkg \ 22 tinderbox universe* kernel kernels world worlds bmake 23 24# Only allow AUTO_OBJ for the whitelisted targets. See AUTO_OBJ_TGT_WHITELIST 25# above. MK_AUTO_OBJ not checked here for "yes" as it may not yet be enabled 26# since it is opportunistic. 27.if empty(.MAKEOVERRIDES:MMK_AUTO_OBJ) 28.for _tgt in ${AUTO_OBJ_TGT_WHITELIST} 29.if make(${_tgt}) 30_CAN_USE_AUTO_OBJ?= yes 31.endif 32.endfor 33.if !defined(_CAN_USE_AUTO_OBJ) 34_MAKEARGS+= MK_AUTO_OBJ=no 35MK_AUTO_OBJ= no 36# This will prevent src.sys.obj.mk from opportunistically enabling AUTO_OBJ 37# in this make execution and for sub-makes. For all of these targets we 38# just want to read any existing OBJDIR but we don't care if we can create 39# or write to them. 40.MAKEOVERRIDES+= MK_AUTO_OBJ 41.else 42# For top-level we always assume the MAKEOBJDIRPREFIX is writable rather than 43# falling back to .CURDIR. 44__objdir_writable= yes 45.endif 46.endif # empty(.MAKEOVERRIDES:MMK_AUTO_OBJ) 47 48.endif # ${MK_DIRDEPS_BUILD} == "no" 49