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cmdline.mk revision 1.3 
      1 # $NetBSD: cmdline.mk,v 1.3 2021/02/06 18:26:03 sjg Exp $
      2 #
      3 # Tests for command line parsing and related special variables.
      4 
      5 TMPBASE?=	${TMPDIR:U/tmp/uid${.MAKE.UID}}
      6 SUB1=		a7b41170-53f8-4cc2-bc5c-e4c3dd93ec45	# just a random UUID
      7 SUB2=		6a8899d2-d227-4b55-9b6b-f3c8eeb83fd5	# just a random UUID
      8 MAKE_CMD=	env TMPBASE=${TMPBASE}/${SUB1} ${.MAKE} -f ${MAKEFILE} -r
      9 DIR2=		${TMPBASE}/${SUB2}
     10 DIR12=		${TMPBASE}/${SUB1}/${SUB2}
     11 
     12 all: prepare-dirs
     13 all: makeobjdir-direct makeobjdir-indirect
     14 
     15 prepare-dirs:
     16 	@rm -rf ${DIR2} ${DIR12}
     17 	@mkdir -p ${DIR2} ${DIR12}
     18 
     19 # The .OBJDIR can be set via the MAKEOBJDIR command line variable.
     20 # It must be a command line variable; an environment variable would not work.
     21 makeobjdir-direct:
     22 	@echo $@:
     23 	@${MAKE_CMD} MAKEOBJDIR=${DIR2} show-objdir
     24 
     25 # The .OBJDIR can be set via the MAKEOBJDIR command line variable,
     26 # and that variable could even contain the usual modifiers.
     27 # Since the .OBJDIR=MAKEOBJDIR assignment happens very early,
     28 # the SUB2 variable in the modifier is not defined yet and is therefore empty.
     29 # The SUB1 in the resulting path comes from the environment variable TMPBASE,
     30 # see MAKE_CMD.
     31 makeobjdir-indirect:
     32 	@echo $@:
     33 	@${MAKE_CMD} MAKEOBJDIR='$${TMPBASE}/$${SUB2}' show-objdir
     34 
     35 show-objdir:
     36 	@echo $@: ${.OBJDIR:Q}
     37