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- # Configure fragment invoked in the post-target section for subdirs
- # wanting multilib support.
- #
- # It is advisable to support a few --enable/--disable options to let the
- # user select which libraries s/he really wants.
- #
- # Subdirectories wishing to use multilib should put the following lines
- # in the "post-target" section of configure.in.
- #
- # if [ "${srcdir}" = "." ] ; then
- # if [ "${with_target_subdir}" != "." ] ; then
- # . ${with_multisrctop}../../config-ml.in
- # else
- # . ${with_multisrctop}../config-ml.in
- # fi
- # else
- # . ${srcdir}/../config-ml.in
- # fi
- #
- # See librx/configure.in in the libg++ distribution for an example of how
- # to handle autoconf'd libraries.
- #
- # Things are complicated because 6 separate cases must be handled:
- # 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
- #
- # srcdir=. is special. It must handle make programs that don't handle VPATH.
- # To implement this, a symlink tree is built for each library and for each
- # multilib subdir.
- #
- # The build tree is layed out as
- #
- # ./
- # libg++
- # newlib
- # m68020/
- # libg++
- # newlib
- # m68881/
- # libg++
- # newlib
- #
- # The nice feature about this arrangement is that inter-library references
- # in the build tree work without having to care where you are. Note that
- # inter-library references also work in the source tree because symlink trees
- # are built when srcdir=.
- #
- # Unfortunately, trying to access the libraries in the build tree requires
- # the user to manually choose which library to use as GCC won't be able to
- # find the right one. This is viewed as the lesser of two evils.
- #
- # Configure variables:
- # ${with_target_subdir} = "." for native, or ${target_alias} for cross.
- # Set by top level Makefile.
- # ${with_multisrctop} = how many levels of multilibs there are in the source
- # tree. It exists to handle the case of configuring in the source tree:
- # ${srcdir} is not constant.
- # ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
- #
- # Makefile variables:
- # MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
- # (FIXME: note that this is different than ${with_multisrctop}. Check out.).
- # MULTIBUILDTOP = number of multilib levels in build tree
- # MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
- # (only defined in each library's main Makefile).
- # MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
- # (only defined in each multilib subdir).
-
- # FIXME: Multilib is currently disabled by default for everything other than
- # newlib. It is up to each target to turn on multilib support for the other
- # libraries as desired.
-
- # We have to handle being invoked by both Cygnus configure and Autoconf.
- #
- # Cygnus configure incoming variables:
- # srcdir, subdir, target, arguments
- #
- # Autoconf incoming variables:
- # srcdir, target, ac_configure_args
- #
- # We *could* figure srcdir and target out, but we'd have to do work that
- # our caller has already done to figure them out and requiring these two
- # seems reasonable.
-
- if [ -n "${ac_configure_args}" ]; then
- Makefile=${ac_file-Makefile}
- ml_config_shell=${CONFIG_SHELL-/bin/sh}
- ml_arguments="${ac_configure_args}"
- ml_realsrcdir=${srcdir}
- else
- Makefile=${Makefile-Makefile}
- ml_config_shell=${config_shell-/bin/sh}
- ml_arguments="${arguments}"
- if [ -n "${subdir}" -a "${subdir}" != "." ] ; then
- ml_realsrcdir=${srcdir}/${subdir}
- else
- ml_realsrcdir=${srcdir}
- fi
- fi
-
- # Scan all the arguments and set all the ones we need.
-
- for option in ${ml_arguments}
- do
- case $option in
- --*) ;;
- -*) option=-$option ;;
- esac
-
- case $option in
- --*=*)
- optarg=`echo $option | sed -e 's/^[^=]*=//'`
- ;;
- esac
-
- case $option in
- --disable-*)
- enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
- eval $enableopt=no
- ;;
- --enable-*)
- case "$option" in
- *=*) ;;
- *) optarg=yes ;;
- esac
- enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
- eval $enableopt="$optarg"
- ;;
- --norecursion | --no*)
- ml_norecursion=yes
- ;;
- --verbose | --v | --verb*)
- ml_verbose=--verbose
- ;;
- --with-*)
- case "$option" in
- *=*) ;;
- *) optarg=yes ;;
- esac
- withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
- eval $withopt="$optarg"
- ;;
- --without-*)
- withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
- eval $withopt=no
- ;;
- esac
- done
-
- # Only do this if --enable-multilib.
- if [ "${enable_multilib}" = yes ]; then
-
- # Compute whether this is the library's top level directory
- # (ie: not a multilib subdirectory, and not a subdirectory like libg++/src).
- # ${with_multisubdir} tells us we're in the right branch, but we could be
- # in a subdir of that.
- # ??? The previous version could void this test by separating the process into
- # two files: one that only the library's toplevel configure.in ran (to
- # configure the multilib subdirs), and another that all configure.in's ran to
- # update the Makefile. It seemed reasonable to collapse all multilib support
- # into one file, but it does leave us with having to perform this test.
- ml_toplevel_p=no
- if [ -z "${with_multisubdir}" ]; then
- if [ "${srcdir}" = "." ]; then
- # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
- # ${with_target_subdir} = "." for native, otherwise target alias.
- if [ "${with_target_subdir}" = "." ]; then
- if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
- ml_toplevel_p=yes
- fi
- else
- if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
- ml_toplevel_p=yes
- fi
- fi
- else
- # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
- if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
- ml_toplevel_p=yes
- fi
- fi
- fi
-
- # If this is the library's top level directory, set multidirs to the
- # multilib subdirs to support. This lives at the top because we need
- # `multidirs' set right away.
-
- if [ "${ml_toplevel_p}" = yes ]; then
-
- multidirs=
- for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
- dir=`echo $i | sed -e 's/;.*$//'`
- if [ "${dir}" = "." ]; then
- true
- else
- if [ -z "${multidirs}" ]; then
- multidirs="${dir}"
- else
- multidirs="${multidirs} ${dir}"
- fi
- fi
- done
-
- case "${target}" in
- m68*-*-*)
- if [ x$enable_softfloat = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *soft-float* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_m68881 = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *m68881* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_m68000 = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *m68000* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_m68020 = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *m68020* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- ;;
- mips*-*-*)
- if [ x$enable_single_float = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *single* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_biendian = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *el* ) : ;;
- *eb* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_softfloat = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *soft-float* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- ;;
- powerpc*-*-* | rs6000*-*-*)
- if [ x$enable_softfloat = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *soft-float* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_commoncpu = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *common* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_powercpu = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- power | */power | */power/* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_power2cpu = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *power2* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_powerpccpu = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *powerpc* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_601cpu = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *601* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_biendian = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *endian* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_relocatable = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *relocatable* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_sysv = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *sysv* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- if [ x$enable_aix = xno ]
- then
- old_multidirs="${multidirs}"
- multidirs=""
- for x in ${old_multidirs}; do
- case "$x" in
- *aix* ) : ;;
- *) multidirs="${multidirs} ${x}" ;;
- esac
- done
- fi
- ;;
- esac
-
- # Remove extraneous blanks from multidirs.
- # Tests like `if [ -n "$multidirs" ]' require it.
- multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
-
- # Add code to library's top level makefile to handle building the multilib
- # subdirs.
-
- cat > Multi.tem <<\EOF
-
- # FIXME: There should be an @-sign in front of the `if'.
- # Leave out until this is tested a bit more.
- multi-do:
- if [ -z "$(MULTIDIRS)" ]; then \
- true; \
- else \
- rootpre=`pwd`/; export rootpre; \
- srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
- lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
- compiler="$(CC)"; \
- for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
- dir=`echo $$i | sed -e 's/;.*$$//'`; \
- if [ "$${dir}" = "." ]; then \
- true; \
- else \
- if [ -d ../$${dir}/$${lib} ]; then \
- flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
- if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
- CFLAGS="$(CFLAGS) $${flags}" \
- CXXFLAGS="$(CXXFLAGS) $${flags}" \
- LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
- LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
- $(DO)); then \
- true; \
- else \
- exit 1; \
- fi; \
- else true; \
- fi; \
- fi; \
- done; \
- fi
-
- # FIXME: There should be an @-sign in front of the `if'.
- # Leave out until this is tested a bit more.
- multi-clean:
- if [ -z "$(MULTIDIRS)" ]; then \
- true; \
- else \
- lib=`pwd | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
- for dir in Makefile $(MULTIDIRS); do \
- if [ -f ../$${dir}/$${lib}/Makefile ]; then \
- if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
- then true; \
- else exit 1; \
- fi; \
- else true; \
- fi; \
- done; \
- fi
- EOF
-
- cat ${Makefile} Multi.tem > Makefile.tem
- rm -f ${Makefile} Multi.tem
- mv Makefile.tem ${Makefile}
-
- fi # ${ml_toplevel_p} = yes
-
- if [ "${ml_verbose}" = --verbose ]; then
- echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
- if [ "${ml_toplevel_p}" = yes ]; then
- echo "multidirs=${multidirs}"
- fi
- echo "with_multisubdir=${with_multisubdir}"
- fi
-
- if [ "${srcdir}" = "." ]; then
- if [ "${with_target_subdir}" != "." ]; then
- ml_srcdotdot="../"
- else
- ml_srcdotdot=""
- fi
- else
- ml_srcdotdot=""
- fi
-
- if [ -z "${with_multisubdir}" ]; then
- ml_subdir=
- ml_builddotdot=
- : # ml_srcdotdot= # already set
- else
- ml_subdir="/${with_multisubdir}"
- # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
- ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
- if [ "$srcdir" = "." ]; then
- ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
- else
- : # ml_srcdotdot= # already set
- fi
- fi
-
- if [ "${ml_toplevel_p}" = yes ]; then
- ml_do='$(MAKE)'
- ml_clean='$(MAKE)'
- else
- ml_do=true
- ml_clean=true
- fi
-
- # TOP is used by newlib and should not be used elsewhere for this purpose.
- # MULTI{SRC,BUILD}TOP are the proper ones to use. MULTISRCTOP is empty
- # when srcdir != builddir. MULTIBUILDTOP is always some number of ../'s.
- # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
- # delete TOP. Newlib may wish to continue to use TOP for its own purposes
- # of course.
- # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
- # and lists the subdirectories to recurse into.
- # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
- # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
- # a leading '/'.
- # MULTIDO is used for targets like all, install, and check where
- # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
- # MULTICLEAN is used for the *clean targets.
- #
- # ??? It is possible to merge MULTIDO and MULTICLEAN into one. They are
- # currently kept separate because we don't want the *clean targets to require
- # the existence of the compiler (which MULTIDO currently requires) and
- # therefore we'd have to record the directory options as well as names
- # (currently we just record the names and use --print-multi-lib to get the
- # options).
-
- sed -e "s:^TOP[ ]*=[ ]*\([./]*\)[ ]*$:TOP = ${ml_builddotdot}\1:" \
- -e "s:^MULTISRCTOP[ ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
- -e "s:^MULTIBUILDTOP[ ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
- -e "s:^MULTIDIRS[ ]*=.*$:MULTIDIRS = ${multidirs}:" \
- -e "s:^MULTISUBDIR[ ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
- -e "s:^MULTIDO[ ]*=.*$:MULTIDO = $ml_do:" \
- -e "s:^MULTICLEAN[ ]*=.*$:MULTICLEAN = $ml_clean:" \
- ${Makefile} > Makefile.tem
- rm -f ${Makefile}
- mv Makefile.tem ${Makefile}
-
- # If this is the library's top level, configure each multilib subdir.
- # This is done at the end because this is the loop that runs configure
- # in each multilib subdir and it seemed reasonable to finish updating the
- # Makefile before going on to configure the subdirs.
-
- if [ "${ml_toplevel_p}" = yes ]; then
-
- # We must freshly configure each subdirectory. This bit of code is
- # actually partially stolen from the main configure script. FIXME.
-
- if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
-
- if [ "${ml_verbose}" = --verbose ]; then
- echo "Running configure in multilib subdirs ${multidirs}"
- echo "pwd: `pwd`"
- fi
-
- ml_origdir=`pwd`
- ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
- # cd to top-level-build-dir/${with_target_subdir}
- cd ..
-
- for ml_dir in ${multidirs}; do
-
- if [ "${ml_verbose}" = --verbose ]; then
- echo "Running configure in multilib subdir ${ml_dir}"
- echo "pwd: `pwd`"
- fi
-
- if [ -d ${ml_dir} ]; then true; else mkdir ${ml_dir}; fi
- if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
-
- # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
- dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
-
- case ${srcdir} in
- ".")
- echo Building symlink tree in `pwd`/${ml_dir}/${ml_libdir}
- if [ "${with_target_subdir}" != "." ]; then
- ml_unsubdir="../"
- else
- ml_unsubdir=""
- fi
- (cd ${ml_dir}/${ml_libdir};
- ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
- ml_newsrcdir="."
- ml_srcdiroption=
- multisrctop=${dotdot}
- ;;
- *)
- case "${srcdir}" in
- /*) # absolute path
- ml_newsrcdir=${srcdir}
- ;;
- *) # otherwise relative
- ml_newsrcdir=${dotdot}${srcdir}
- ;;
- esac
- ml_srcdiroption="-srcdir=${ml_newsrcdir}"
- multisrctop=
- ;;
- esac
-
- case "${progname}" in
- /*) ml_recprog=${progname} ;;
- *) ml_recprog=${dotdot}${progname} ;;
- esac
-
- # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
- ML_POPDIR=`pwd`
- cd ${ml_dir}/${ml_libdir}
-
- if [ -f ${ml_newsrcdir}/configure ]; then
- ml_recprog=${ml_newsrcdir}/configure
- fi
- if eval ${ml_config_shell} ${ml_recprog} \
- --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
- ${ml_arguments} ${ml_srcdiroption} ; then
- true
- else
- exit 1
- fi
-
- cd ${ML_POPDIR}
-
- done
-
- cd ${ml_origdir}
- fi
-
- fi # ${ml_toplevel_p} = yes
- fi # ${enable_multilib} = yes
-