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112 lines
3.7 KiB
Plaintext
112 lines
3.7 KiB
Plaintext
# Configure fragment invoked in the post-target section for subdirs
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# wanting multilib support.
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# The intent is to keep as much of this in one place as possible (and out
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# of each subdirectory, eg: newlib, libio, etc.) until the right way to do
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# this (ha ha) is decided upon.
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# Only do this if --enable-multilib.
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if [ "${enable_multilib}" = yes ]; then
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if [ -z "${with_multisubdir}" ]; then
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multisubdir=
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else
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multisubdir="/${with_multisubdir}"
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# The '[^/][^/]*' appears that way to work around a SunOS sed bug.
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dotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
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# TOP is used by newlib and should not be used elsewhere for this purpose.
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# MULTITOP is the proper one to use.
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# FIXME: newlib needs to be updated to use MULTITOP so we can delete TOP.
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# Newlib may wish to continue to use TOP for its own purposes of course.
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sed -e "s:^TOP[ ]*=[ ]*\([./]*\)[ ]*$:TOP = ${dotdot}/\1:" \
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-e "s:^MULTITOP[ ]*=.*$:MULTITOP = ${dotdot}:" \
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${Makefile} > Makefile.tem
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rm -f ${Makefile}
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mv Makefile.tem ${Makefile}
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fi
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# MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
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# and lists the subdirectories to recurse into.
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# MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
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# (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
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# a leading '/'.
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# MULTIDO is used for targets like all, install, and check where
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# $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
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# MULTICLEAN is used for the *clean targets.
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#
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# ??? It is possible to merge MULTIDO and MULTICLEAN into one. They are
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# currently kept separate because we don't want the *clean targets to require
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# the existence of the compiler (which MULTIDO currently requires) and
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# therefore we'd have to record the directory options as well as names
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# (currently we just record the names and use --print-multi-lib to get the
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# options).
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sed -e "s:^MULTIDIRS[ ]*=.*$:MULTIDIRS = ${multidirs}:" \
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-e "s:^MULTISUBDIR[ ]*=.*$:MULTISUBDIR = ${multisubdir}:" \
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-e 's:^MULTIDO[ ]*=.*$:MULTIDO = $(MAKE):' \
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-e 's:^MULTICLEAN[ ]*=.*$:MULTICLEAN = $(MAKE):' \
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${Makefile} > Makefile.tem
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rm -f ${Makefile}
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mv Makefile.tem ${Makefile}
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# ??? May wish to add a check to avoid appending this to Makefiles that
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# don't need it. It's not necessary, but is cleaner.
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cat > Multi.tem <<\EOF
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# FIXME: There should be an @-sign in front of the `if'.
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# Leave out until this is tested a bit more.
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multi-do:
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if [ -z "$(MULTIDIRS)" ]; then \
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true; \
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else \
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rootpre=`pwd`/; export rootpre; \
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srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
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compiler="$(CC)"; \
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for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
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dir=`echo $$i | sed -e 's/;.*$$//'`; \
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if [ "$${dir}" = "." ]; then \
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true; \
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else \
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if [ -d $${dir} ]; then \
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flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
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if (cd $${dir}; $(MAKE) $(FLAGS_TO_PASS) \
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CFLAGS="$(CFLAGS) $${flags}" \
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CXXFLAGS="$(CXXFLAGS) $${flags}" \
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LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
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LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
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$(DO)); then \
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true; \
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else \
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exit 1; \
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fi; \
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else true; \
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fi; \
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fi; \
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done; \
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fi
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# FIXME: There should be an @-sign in front of the `if'.
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# Leave out until this is tested a bit more.
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multi-clean:
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if [ -z "$(MULTIDIRS)" ]; then \
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true; \
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else \
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for dir in Makefile $(MULTIDIRS); do \
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if [ -f ./$$dir/Makefile ]; then \
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if (cd ./$$dir; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
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then true; \
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else exit 1; \
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fi; \
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else true; \
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fi; \
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done; \
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fi
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EOF
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cat ${Makefile} Multi.tem > Makefile.tem
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rm -f ${Makefile} Multi.tem
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mv Makefile.tem ${Makefile}
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fi # "${enable_multilib}" = yes
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