freebsd-dev/share/mk/bsd.obj.mk
John Polstra 261003872e In the "cleanobj" target, always remove the old-style "${.CURDIR}/obj"
links if they exist.  The old-style links confused make and caused
problems when upgrading from a 2.1.5 or 2.1.6 system.

I will merge this into -2.2.
1997-02-14 05:09:07 +00:00

150 lines
3.5 KiB
Makefile

# $FreeBSD$
#
# The include file <bsd.obj.mk> handles creating the 'obj' directory
# and cleaning up object files, log files etc.
#
#
# +++ variables +++
#
# CLEANFILES Additional files to remove for the clean and cleandir targets.
#
# MAKEOBJDIR A pathname for the directory where the targets
# are built. Note: MAKEOBJDIR is an *enviroment* variable
# and works properly only if set as an enviroment variable,
# not as a global or command line variable!
#
# E.g. use `env MAKEOBJDIR=temp-obj make'
#
# MAKEOBJDIRPREFIX Specifies somewhere other than /usr/obj to root the object
# tree. Note: MAKEOBJDIRPREFIX is an *enviroment* variable
# and works properly only if set as an enviroment variable,
# not as a global or command line variable!
#
# E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make'
#
# NOOBJ Do not create object directories. This should not be set
# if anything is built.
#
# OBJLINK Create a symbolic link from ${.CURDIR}/obj to
# ${CANONICALOBJDIR}. Note: this BREAKS the read-only source
# tree rule!
#
# +++ targets +++
#
# clean:
# remove a.out Errs errs mklog ${CLEANFILES}
#
# cleandir:
# remove the build directory (and all its contents) created by obj
#
# obj:
# create build directory.
#
.if defined(MAKEOBJDIRPREFIX)
CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
.else
CANONICALOBJDIR:=/usr/obj${.CURDIR}
.endif
#
# Warn of unorthodox object directory
#
objwarn:
.if !defined(NOOBJ) && ${.OBJDIR} != ${CANONICALOBJDIR}
.if ${.OBJDIR} == ${.CURDIR}
@${ECHO} "Warning: Object directory not changed from original ${.CURDIR}"
.elif !defined(MAKEOBJDIR) && !defined(MAKEOBJDIRPREFIX) && !defined(OBJLINK)
@${ECHO} "Warning: Using ${.OBJDIR} as object directory instead of\
canonical ${CANONICALOBJDIR}"
.endif
.endif
.if !target(obj)
.if defined(NOOBJ)
obj:
.else
.if !defined(OBJLINK)
obj: _SUBDIR
@if ! test -d ${CANONICALOBJDIR}; then \
mkdir -p ${CANONICALOBJDIR}; \
if ! test -d ${CANONICALOBJDIR}; then \
${ECHO} "Unable to create ${CANONICALOBJDIR}."; \
exit 1; \
fi; \
${ECHO} "${CANONICALOBJDIR} created for ${.CURDIR}"; \
fi
.else
obj: _SUBDIR
@if ! test -d ${CANONICALOBJDIR}; then \
mkdir -p ${CANONICALOBJDIR}; \
if ! test -d ${CANONICALOBJDIR}; then \
${ECHO} "Unable to create ${CANONICALOBJDIR}."; \
exit 1; \
fi; \
rm -f ${.CURDIR}/obj; \
ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \
${ECHO} "${.CURDIR} -> ${CANONICALOBJDIR}"; \
fi
.endif
.endif
.endif
.if !target(objlink)
objlink: _SUBDIR
@if test -d ${CANONICALOBJDIR}; then \
rm -f ${.CURDIR}/obj; \
ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \
else \
echo "No ${CANONICALOBJDIR} to link to - do a make obj."; \
fi
.endif
#
# where would that obj directory be?
#
.if !target(whereobj)
whereobj:
@cd ${.CURDIR}; ${MAKE} -V .OBJDIR
.endif
#
# cleanup
#
cleanobj:
@if [ -d ${CANONICALOBJDIR} ]; then \
rm -rf ${CANONICALOBJDIR}; \
else \
cd ${.CURDIR} && ${MAKE} clean cleandepend; \
fi
@if [ -h ${.CURDIR}/obj ]; then rm -f ${.CURDIR}/obj; fi
.if !target(cleanfiles)
cleanfiles:
rm -f a.out Errs errs mklog ${CLEANFILES}
.endif
# see bsd.dep.mk
.if !target(cleandepend)
cleandepend:
@rm -f .depend
.endif
.if !target(clean)
clean: cleanfiles _SUBDIR
.endif
.if !target(checkdpadd)
checkdpadd: _SUBDIR
.if (defined(DPADD) || defined(LDADD))
checkdpadd:
@if [ "${DPADD:S;^/usr/lib/lib;-l;S;.a$;;}" != "${LDADD}" ] ; then \
echo ${.CURDIR} ; \
echo "DPADD -> " ${DPADD:S;^/usr/lib/lib;-l;S;.a$;;} ; \
echo "LDADD = " ${LDADD} ; \
fi
.endif
.endif
cleandir: cleanobj _SUBDIR