| # 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 |
| arc-*-elf*) |
| if [ x$enable_biendian != xyes ] |
| then |
| old_multidirs=${multidirs} |
| multidirs="" |
| for x in ${old_multidirs}; do |
| case "${x}" in |
| *be*) : ;; |
| *) multidirs="${multidirs} ${x}" ;; |
| esac |
| done |
| fi |
| ;; |
| m68*-*-*) |
| if [ x$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_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_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_powerpcos = xno ] |
| then |
| old_multidirs="${multidirs}" |
| multidirs="" |
| for x in ${old_multidirs}; do |
| case "$x" in |
| *mcall-linux* | *mcall-solaris* ) : ;; |
| *) 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 |
| *mlittle* | *mbig* ) : ;; |
| *) 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 |
| *mcall-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 |
| *mcall-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 |