aba77ddd8a
auto.obj.mk is loaded before the Makefile which may have NO_OBJ set inside of
it. In that case we can't avoid creating the OBJDIR but we do need to avoid
using it. Fixing .OBJDIR in bsd.init.mk at least fixes all of the build .mk
files to have a proper .OBJDIR. It does not fix the Makefile itself but
usually if they have NO_OBJ set they are not inspecting ${.OBJDIR} anyhow.
It is ideal to only have this in bsd.init.mk and to remove it from bsd.obj.mk,
but then bsd.obj.mk would need to include bsd.init.mk. Doing something like
that would require more testing. It has been proposed that bsd.obj.mk not be
included directly but it has been possible for too long to do so to change it
at this point.
Note too that it may make sense to fix .OBJDIR even when AUTO_OBJ is not
enabled but the historical behavior has always been that NO_OBJ just avoids
running 'make obj', so .OBJDIR should already be .CURDIR.
Also while NO_OBJ seems like it should be removed at this point, it is not
always possible to fix Makefiles to properly use an .OBJDIR. The cost of
keeping NO_OBJ support is minimal.
Sponsored by: Dell EMC Isilon
244 lines
6.2 KiB
Makefile
244 lines
6.2 KiB
Makefile
# $FreeBSD$
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#
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# The include file <bsd.obj.mk> handles creating the 'obj' directory
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# and cleaning up object files, etc.
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#
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# +++ variables +++
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#
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# CLEANDIRS Additional directories to remove for the clean target.
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#
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# CLEANFILES Additional files to remove for the clean target.
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#
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# MAKEOBJDIR A pathname for the directory where the targets
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# are built. Note: MAKEOBJDIR is an *environment* variable
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# and works properly only if set as an environment variable,
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# not as a global or command line variable!
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#
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# E.g. use `env MAKEOBJDIR=temp-obj make'
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#
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# MAKEOBJDIRPREFIX Specifies somewhere other than /usr/obj to root the object
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# tree. Note: MAKEOBJDIRPREFIX is an *environment* variable
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# and works properly only if set as an environment variable,
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# not as a global or command line variable!
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#
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# E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make'
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#
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# NO_OBJ Do not create object directories. This should not be set
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# if anything is built.
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#
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# +++ targets +++
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#
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# clean:
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# remove ${CLEANFILES}; remove ${CLEANDIRS} and all contents.
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#
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# cleandir:
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# remove the build directory (and all its contents) created by obj
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#
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# obj:
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# create build directory.
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#
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.if !target(__<bsd.obj.mk>__)
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__<bsd.obj.mk>__:
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.include <bsd.own.mk>
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.if ${MK_AUTO_OBJ} == "yes"
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# it is done by now
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objwarn:
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obj:
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CANONICALOBJDIR= ${.OBJDIR}
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# This is also done in bsd.init.mk
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.if defined(NO_OBJ)
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# but this makefile does not want it!
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.OBJDIR: ${.CURDIR}
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.endif
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# Handle special case where SRCS is full-pathed and requires
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# nested objdirs. This duplicates some auto.obj.mk logic.
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.if (!empty(SRCS:M*/*) || !empty(DPSRCS:M*/*)) && \
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(${.TARGETS} == "" || ${.TARGETS:Nclean*:N*clean:Ndestroy*} != "")
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_wantdirs= ${SRCS:M*/*:H} ${DPSRCS:M*/*:H}
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.if !empty(_wantdirs)
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_wantdirs:= ${_wantdirs:O:u}
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_needdirs=
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.for _dir in ${_wantdirs}
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.if !exists(${.OBJDIR}/${_dir}/)
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_needdirs+= ${_dir}
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.endif
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.endfor
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.endif
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.if !empty(_needdirs)
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#_mkneededdirs!= umask ${OBJDIR_UMASK:U002}; ${Mkdirs} ${_needdirs}
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__objdir_made != umask ${OBJDIR_UMASK:U002}; ${Mkdirs}; \
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for dir in ${_needdirs}; do \
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dir=${.OBJDIR}/$${dir}; \
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${ECHO_TRACE} "[Creating nested objdir $${dir}...]" >&2; \
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Mkdirs $${dir}; \
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done
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.endif
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.endif # !empty(SRCS:M*/*) || !empty(DPSRCS:M*/*)
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.elif !empty(MAKEOBJDIRPREFIX)
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CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
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.elif defined(MAKEOBJDIR) && ${MAKEOBJDIR:M/*} != ""
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CANONICALOBJDIR:=${MAKEOBJDIR}
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OBJTOP?= ${MAKEOBJDIR}
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.else
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CANONICALOBJDIR:=/usr/obj${.CURDIR}
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.endif
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.if defined(SRCTOP) && \
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(${CANONICALOBJDIR} == /${RELDIR} || ${.OBJDIR} == /${RELDIR})
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.error .OBJDIR incorrectly set to /${RELDIR}
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.endif
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OBJTOP?= ${.OBJDIR:S,${.CURDIR},,}${SRCTOP}
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#
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# Warn of unorthodox object directory.
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#
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# The following directories are tried in order for ${.OBJDIR}:
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#
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# 1. ${MAKEOBJDIRPREFIX}/`pwd`
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# 2. ${MAKEOBJDIR}
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# 3. obj.${MACHINE}
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# 4. obj
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# 5. /usr/obj/`pwd`
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# 6. ${.CURDIR}
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#
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# If ${.OBJDIR} is constructed using canonical cases 1 or 5, or
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# case 2 (using MAKEOBJDIR), don't issue a warning. Otherwise,
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# issue a warning differentiating between cases 6 and (3 or 4).
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#
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objwarn: .PHONY
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.if !defined(NO_OBJ) && ${.OBJDIR} != ${CANONICALOBJDIR} && \
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!(defined(MAKEOBJDIRPREFIX) && exists(${CANONICALOBJDIR}/)) && \
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!(defined(MAKEOBJDIR) && exists(${MAKEOBJDIR}/))
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.if ${.OBJDIR} == ${.CURDIR}
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@${ECHO} "Warning: Object directory not changed from original ${.CURDIR}"
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.elif exists(${.CURDIR}/obj.${MACHINE}/) || exists(${.CURDIR}/obj/)
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@${ECHO} "Warning: Using ${.OBJDIR} as object directory instead of\
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canonical ${CANONICALOBJDIR}"
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.endif
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.endif
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beforebuild: objwarn
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.if !defined(NO_OBJ)
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.if !target(obj)
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obj: .PHONY
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@if ! test -d ${CANONICALOBJDIR}/; then \
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mkdir -p ${CANONICALOBJDIR}; \
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if ! test -d ${CANONICALOBJDIR}/; then \
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${ECHO} "Unable to create ${CANONICALOBJDIR}."; \
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exit 1; \
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fi; \
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${ECHO} "${CANONICALOBJDIR} created for ${.CURDIR}"; \
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fi
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.for dir in ${SRCS:H:O:u} ${DPSRCS:H:O:u}
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@if ! test -d ${CANONICALOBJDIR}/${dir}/; then \
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mkdir -p ${CANONICALOBJDIR}/${dir}; \
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if ! test -d ${CANONICALOBJDIR}/${dir}/; then \
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${ECHO} "Unable to create ${CANONICALOBJDIR}/${dir}."; \
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exit 1; \
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fi; \
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${ECHO} "${CANONICALOBJDIR}/${dir} created for ${.CURDIR}"; \
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fi
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.endfor
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.endif
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.if !target(objlink)
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objlink:
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@if test -d ${CANONICALOBJDIR}/; then \
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rm -f ${.CURDIR}/obj; \
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ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \
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else \
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echo "No ${CANONICALOBJDIR} to link to - do a make obj."; \
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fi
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.endif
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.endif # !defined(NO_OBJ)
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#
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# where would that obj directory be?
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#
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.if !target(whereobj)
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whereobj:
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@echo ${.OBJDIR}
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.endif
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# Same check in bsd.progs.mk
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.if ${CANONICALOBJDIR} != ${.CURDIR} && exists(${CANONICALOBJDIR}/)
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cleanobj:
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-rm -rf ${CANONICALOBJDIR}
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.else
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cleanobj: clean cleandepend
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.endif
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@if [ -L ${.CURDIR}/obj ]; then rm -f ${.CURDIR}/obj; fi
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# Tell bmake not to look for generated files via .PATH
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NOPATH_FILES+= ${CLEANFILES}
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.if !empty(NOPATH_FILES)
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.NOPATH: ${NOPATH_FILES}
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.endif
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.if !target(clean)
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clean:
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.if defined(CLEANFILES) && !empty(CLEANFILES)
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rm -f ${CLEANFILES}
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.endif
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.if defined(CLEANDIRS) && !empty(CLEANDIRS)
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-rm -rf ${CLEANDIRS}
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.endif
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.endif
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.ORDER: clean all
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.include <bsd.subdir.mk>
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cleandir: .WAIT cleanobj
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.if make(destroy*) && defined(OBJROOT)
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# this (rm -rf objdir) is much faster and more reliable than cleaning.
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# just in case we are playing games with these...
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_OBJDIR?= ${.OBJDIR}
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_CURDIR?= ${.CURDIR}
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# destroy almost everything
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destroy: destroy-all
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destroy-all:
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# just remove our objdir
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destroy-arch: .NOMETA
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.if ${_OBJDIR} != ${_CURDIR}
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cd ${_CURDIR} && rm -rf ${_OBJDIR}
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.endif
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.if defined(HOST_OBJTOP)
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destroy-host: destroy.host
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destroy.host: .NOMETA
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cd ${_CURDIR} && rm -rf ${HOST_OBJTOP}/${RELDIR:N.}
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.endif
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.if make(destroy-all) && ${RELDIR} == "."
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destroy-all: destroy-stage
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.endif
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# remove the stage tree
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destroy-stage: .NOMETA
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.if defined(STAGE_ROOT)
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cd ${_CURDIR} && rm -rf ${STAGE_ROOT}
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.endif
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# allow parallel destruction
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_destroy_machine_list = common host ${ALL_MACHINE_LIST}
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.for m in ${_destroy_machine_list:O:u}
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destroy-all: destroy.$m
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.if !target(destroy.$m)
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destroy.$m: .NOMETA
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.if ${_OBJDIR} != ${_CURDIR}
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cd ${_CURDIR} && rm -rf ${OBJROOT}$m*/${RELDIR:N.}
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.endif
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.endif
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.endfor
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.endif
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.endif # !target(__<bsd.obj.mk>__)
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