[binutils.git] / config-ml.in

# 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
#     . ${srcdir}/${with_multisrctop}../../config-ml.in
#   else
#     . ${srcdir}/${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=.
#
# 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)
# MULITBUILDTOP = 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.
# We except both to define `srcdir' and `target' (we *could* figure them
# out, but we'd have to do work that they're already done to figure them out).
# We expect Cygnus configure to define `arguments' and Autoconf to define
# `ac_configure_args'.

if [ -n "${ac_configure_args}" ]; then
  Makefile=${ac_file-Makefile}
  ml_config_shell=${CONFIG_SHELL-/bin/sh}
  ml_arguments="${ac_configure_args}"
else
  Makefile=${Makefile-Makefile}
  ml_config_shell=${config_shell-/bin/sh}
  ml_arguments="${arguments}"
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
    # ${with_target_subdir} = "." for native, otherwise target alias.
    if [ "${with_target_subdir}" = "." ]; then
      if [ -f ../config-ml.in ]; then
	ml_toplevel_p=yes
      fi
    else
      if [ -f ../../config-ml.in ]; then
	ml_toplevel_p=yes
      fi
    fi
  else
    if [ -f ${srcdir}/../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 "${target}" in
# start-sanitize-arc
arc-sbp-elf*)
	if [ x$enable_biendian != xyes ]
	then
	  old_multidirs=${multidirs}
	  multidirs=
	  for x in ${old_multidirs}; do
	    case "${x}" in
	      *be*) ;;
	      *) if [ x"$multidirs" = x ]; then
		   multidirs="$x";
		 else
		   multidirs="${multidirs} ${x}"; 
		 fi
		 ;;
	    esac
	  done
	fi
	;;
# end-sanitize-arc
mips*-*-*)
	if [ x$enable_single_float = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *single* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_biendian = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *el* ) : ;;
	      *eb* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_softfloat = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *soft-float* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	;;
powerpc*-*-* | rs6000*-*-*)
	if [ x$enable_softfloat = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *soft-float* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_commoncpu = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *common* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_powercpu = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      power | */power | */power/* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_power2cpu = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *power2* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_powerpccpu = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *powerpc* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_601cpu = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *601* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_biendian = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *endian* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_relocatable = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *relocatable* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_sysv = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *sysv* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	if [ x$enable_aix = xno ]
	then
	  old_multidirs="${multidirs}"
	  multidirs=""
	  for x in ${old_multidirs}; do
	    case "$x" in
	      *aix* ) : ;;
	      *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	    esac
	  done
	fi
	;;
esac

# 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 [ "${ml_verbose}" = --verbose ]; then
  echo "Adding multilib support to Makefile in `pwd`"
  if [ "${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 # ${enable_multilib} = yes
Commit	Line	Data
d747cac4 DE	1	# Configure fragment invoked in the post-target section for subdirs
	2	# wanting multilib support.
	3	#
	4	# It is advisable to support a few --enable/--disable options to let the
	5	# user select which libraries s/he really wants.
	6	#
	7	# Subdirectories wishing to use multilib should put the following lines
	8	# in the "post-target" section of configure.in.
	9	#
	10	# if [ "${srcdir}" = "." ] ; then
	11	# if [ "${with_target_subdir}" != "." ] ; then
	12	# . ${srcdir}/${with_multisrctop}../../config-ml.in
	13	# else
	14	# . ${srcdir}/${with_multisrctop}../config-ml.in
	15	# fi
	16	# else
	17	# . ${srcdir}/../config-ml.in
	18	# fi
	19	#
	20	# See librx/configure.in in the libg++ distribution for an example of how
	21	# to handle autoconf'd libraries.
	22	#
	23	# Things are complicated because 6 separate cases must be handled:
	24	# 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
	25	#
	26	# srcdir=. is special. It must handle make programs that don't handle VPATH.
	27	# To implement this, a symlink tree is built for each library and for each
	28	# multilib subdir.
	29	#
	30	# The build tree is layed out as
	31	#
	32	# ./
	33	# libg++
	34	# newlib
	35	# m68020/
	36	# libg++
	37	# newlib
	38	# m68881/
	39	# libg++
	40	# newlib
	41	#
	42	# The nice feature about this arrangement is that inter-library references
	43	# in the build tree work without having to care where you are. Note that
	44	# inter-library references also work in the source tree because symlink trees
	45	# are built when srcdir=.
	46	#
	47	# Configure variables:
	48	# ${with_target_subdir} = "." for native, or ${target_alias} for cross.
	49	# Set by top level Makefile.
	50	# ${with_multisrctop} = how many levels of multilibs there are in the source
	51	# tree. It exists to handle the case of configuring in the source tree:
	52	# ${srcdir} is not constant.
	53	# ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
	54	#
	55	# Makefile variables:
	56	# MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
	57	# MULITBUILDTOP = number of multilib levels in build tree
	58	# MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
	59	# (only defined in each library's main Makefile).
	60	# MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
	61	# (only defined in each multilib subdir).
	62
	63	# FIXME: Multilib is currently disabled by default for everything other than
	64	# newlib. It is up to each target to turn on multilib support for the other
65	# libraries as desired.
66
67	# We have to handle being invoked by both Cygnus configure and Autoconf.
68	# We except both to define `srcdir' and `target' (we could figure them
69	# out, but we'd have to do work that they're already done to figure them out).
70	# We expect Cygnus configure to define `arguments' and Autoconf to define
71	# `ac_configure_args'.
72
73	if [ -n "${ac_configure_args}" ]; then
74	Makefile=${ac_file-Makefile}
2a59259c DE	75	ml_config_shell=${CONFIG_SHELL-/bin/sh}
2a59259c DE	76	ml_arguments="${ac_configure_args}"
d747cac4 DE	77	else
d747cac4 DE	78	Makefile=${Makefile-Makefile}
2a59259c DE	79	ml_config_shell=${config_shell-/bin/sh}
2a59259c DE	80	ml_arguments="${arguments}"
d747cac4 DE	81	fi
	82
	83	# Scan all the arguments and set all the ones we need.
	84
2a59259c	85	for option in ${ml_arguments}
d747cac4 DE	86	do
	87	case $option in
	88	--*) ;;
	89	-*) option=-$option ;;
	90	esac
	91
	92	case $option in
	93	--=)
	94	optarg=`echo $option \| sed -e 's/^[^=]*=//'`
	95	;;
	96	esac
	97
	98	case $option in
	99	--disable-*)
	100	enableopt=`echo ${option} \| sed 's:^--disable-:enable_:;s:-:_:g'`
	101	eval $enableopt=no
	102	;;
	103	--enable-*)
	104	case "$option" in
	105	=) ;;
	106	*) optarg=yes ;;
	107	esac
	108	enableopt=`echo ${option} \| sed 's:^--::;s:=.*$::;s:-:_:g'`
	109	eval $enableopt="$optarg"
	110	;;
	111	--norecursion \| --no*)
2a59259c	112	ml_norecursion=yes
d747cac4 DE	113	;;
d747cac4 DE	114	--verbose \| --v \| --verb*)
2a59259c	115	ml_verbose=--verbose
d747cac4 DE	116	;;
	117	--with-*)
	118	case "$option" in
	119	=) ;;
	120	*) optarg=yes ;;
	121	esac
	122	withopt=`echo ${option} \| sed 's:^--::;s:=.*$::;s:-:_:g'`
	123	eval $withopt="$optarg"
	124	;;
	125	--without-*)
	126	withopt=`echo ${option} \| sed 's:^--::;s:out::;s:-:_:g'`
	127	eval $withopt=no
	128	;;
	129	esac
	130	done
	131
	132	# Only do this if --enable-multilib.
	133	if [ "${enable_multilib}" = yes ]; then
	134
	135	# Compute whether this is the library's top level directory
	136	# (ie: not a multilib subdirectory, and not a subdirectory like libg++/src).
	137	# ${with_multisubdir} tells us we're in the right branch, but we could be
	138	# in a subdir of that.
	139	# ??? The previous version could void this test by separating the process into
	140	# two files: one that only the library's toplevel configure.in ran (to
	141	# configure the multilib subdirs), and another that all configure.in's ran to
	142	# update the Makefile. It seemed reasonable to collapse all multilib support
	143	# into one file, but it does leave us with having to perform this test.
	144	ml_toplevel_p=no
	145	if [ -z "${with_multisubdir}" ]; then
	146	if [ "${srcdir}" = "." ]; then
	147	# ${with_target_subdir} = "." for native, otherwise target alias.
	148	if [ "${with_target_subdir}" = "." ]; then
	149	if [ -f ../config-ml.in ]; then
	150	ml_toplevel_p=yes
	151	fi
	152	else
	153	if [ -f ../../config-ml.in ]; then
	154	ml_toplevel_p=yes
	155	fi
	156	fi
	157	else
	158	if [ -f ${srcdir}/../config-ml.in ]; then
	159	ml_toplevel_p=yes
	160	fi
	161	fi
	162	fi
	163
	164	# If this is the library's top level directory, set multidirs to the
	165	# multilib subdirs to support. This lives at the top because we need
d1265690	166	# `multidirs' set right away.
d747cac4 DE	167
	168	if [ "${ml_toplevel_p}" = yes ]; then
	169
d1265690 MM	170	multidirs=
	171	for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
	172	dir=`echo $i \| sed -e 's/;.*$//'`
	173	if [ "${dir}" = "." ]; then
	174	true
	175	else
	176	if [ -z "${multidirs}" ]; then
	177	multidirs="${dir}"
	178	else
	179	multidirs="${multidirs} ${dir}"
	180	fi
	181	fi
	182	done
	183
d747cac4 DE	184	case "${target}" in
	185	# start-sanitize-arc
	186	arc-sbp-elf*)
d1265690	187	if [ x$enable_biendian != xyes ]
d747cac4	188	then
d1265690 MM	189	old_multidirs=${multidirs}
d1265690 MM	190	multidirs=
d747cac4	191	for x in ${old_multidirs}; do
d1265690 MM	192	case "${x}" in
	193	be) ;;
	194	*) if [ x"$multidirs" = x ]; then
	195	multidirs="$x";
	196	else
	197	multidirs="${multidirs} ${x}";
	198	fi
	199	;;
d747cac4 DE	200	esac
	201	done
	202	fi
d1265690 MM	203	;;
	204	# end-sanitize-arc
	205	mips--*)
	206	if [ x$enable_single_float = xno ]
d747cac4 DE	207	then
	208	old_multidirs="${multidirs}"
	209	multidirs=""
	210	for x in ${old_multidirs}; do
	211	case "$x" in
d1265690	212	single ) : ;;
d747cac4 DE	213	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	214	esac
	215	done
	216	fi
d1265690	217	if [ x$enable_biendian = xno ]
d747cac4 DE	218	then
	219	old_multidirs="${multidirs}"
	220	multidirs=""
	221	for x in ${old_multidirs}; do
	222	case "$x" in
d1265690 MM	223	el ) : ;;
d1265690 MM	224	eb ) : ;;
d747cac4 DE	225	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	226	esac
	227	done
	228	fi
d1265690	229	if [ x$enable_softfloat = xno ]
d747cac4 DE	230	then
	231	old_multidirs="${multidirs}"
	232	multidirs=""
	233	for x in ${old_multidirs}; do
	234	case "$x" in
d1265690	235	soft-float ) : ;;
d747cac4 DE	236	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	237	esac
	238	done
	239	fi
	240	;;
d1265690	241	powerpc--* \| rs6000--*)
d747cac4 DE	242	if [ x$enable_softfloat = xno ]
	243	then
	244	old_multidirs="${multidirs}"
	245	multidirs=""
	246	for x in ${old_multidirs}; do
	247	case "$x" in
	248	soft-float ) : ;;
	249	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	250	esac
	251	done
	252	fi
	253	if [ x$enable_commoncpu = xno ]
	254	then
	255	old_multidirs="${multidirs}"
	256	multidirs=""
	257	for x in ${old_multidirs}; do
	258	case "$x" in
	259	common ) : ;;
	260	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	261	esac
	262	done
	263	fi
d1265690	264	if [ x$enable_powercpu = xno ]
d747cac4 DE	265	then
	266	old_multidirs="${multidirs}"
	267	multidirs=""
	268	for x in ${old_multidirs}; do
	269	case "$x" in
d1265690	270	power \| /power \| /power/* ) : ;;
d747cac4 DE	271	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	272	esac
	273	done
	274	fi
d1265690	275	if [ x$enable_power2cpu = xno ]
d747cac4 DE	276	then
	277	old_multidirs="${multidirs}"
	278	multidirs=""
	279	for x in ${old_multidirs}; do
	280	case "$x" in
d1265690	281	power2 ) : ;;
d747cac4 DE	282	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	283	esac
	284	done
	285	fi
d1265690	286	if [ x$enable_powerpccpu = xno ]
d747cac4 DE	287	then
	288	old_multidirs="${multidirs}"
	289	multidirs=""
	290	for x in ${old_multidirs}; do
	291	case "$x" in
d1265690	292	powerpc ) : ;;
d747cac4 DE	293	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	294	esac
	295	done
	296	fi
d1265690	297	if [ x$enable_601cpu = xno ]
d747cac4 DE	298	then
	299	old_multidirs="${multidirs}"
	300	multidirs=""
	301	for x in ${old_multidirs}; do
	302	case "$x" in
d1265690	303	601 ) : ;;
d747cac4 DE	304	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	305	esac
	306	done
	307	fi
d747cac4 DE	308	if [ x$enable_biendian = xno ]
	309	then
	310	old_multidirs="${multidirs}"
	311	multidirs=""
	312	for x in ${old_multidirs}; do
	313	case "$x" in
	314	endian ) : ;;
	315	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	316	esac
	317	done
	318	fi
d747cac4 DE	319	if [ x$enable_relocatable = xno ]
	320	then
	321	old_multidirs="${multidirs}"
	322	multidirs=""
	323	for x in ${old_multidirs}; do
	324	case "$x" in
	325	relocatable ) : ;;
	326	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	327	esac
	328	done
	329	fi
d1265690	330	if [ x$enable_sysv = xno ]
d747cac4 DE	331	then
	332	old_multidirs="${multidirs}"
	333	multidirs=""
	334	for x in ${old_multidirs}; do
	335	case "$x" in
d1265690	336	sysv ) : ;;
d747cac4 DE	337	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	338	esac
	339	done
	340	fi
	341	if [ x$enable_aix = xno ]
	342	then
	343	old_multidirs="${multidirs}"
	344	multidirs=""
	345	for x in ${old_multidirs}; do
	346	case "$x" in
	347	aix ) : ;;
	348	*) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
	349	esac
	350	done
	351	fi
	352	;;
d747cac4 DE	353	esac
	354
	355	# Add code to library's top level makefile to handle building the multilib
	356	# subdirs.
	357
	358	cat > Multi.tem <<\EOF
	359
	360	# FIXME: There should be an @-sign in front of the `if'.
	361	# Leave out until this is tested a bit more.
	362	multi-do:
	363	if [ -z "$(MULTIDIRS)" ]; then \
	364	true; \
	365	else \
	366	rootpre=`pwd`/; export rootpre; \
	367	srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
	368	lib=`echo $${rootpre} \| sed -e 's,^./\([^/][^/]\)/$$,\1,'`; \
	369	compiler="$(CC)"; \
	370	for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
	371	dir=`echo $$i \| sed -e 's/;.*$$//'`; \
	372	if [ "$${dir}" = "." ]; then \
	373	true; \
	374	else \
	375	if [ -d ../$${dir}/$${lib} ]; then \
	376	flags=`echo $$i \| sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
	377	if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
	378	CFLAGS="$(CFLAGS) $${flags}" \
	379	CXXFLAGS="$(CXXFLAGS) $${flags}" \
	380	LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
	381	LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
	382	$(DO)); then \
	383	true; \
	384	else \
	385	exit 1; \
	386	fi; \
	387	else true; \
	388	fi; \
	389	fi; \
	390	done; \
	391	fi
	392
	393	# FIXME: There should be an @-sign in front of the `if'.
	394	# Leave out until this is tested a bit more.
	395	multi-clean:
	396	if [ -z "$(MULTIDIRS)" ]; then \
	397	true; \
	398	else \
d1265690	399	lib=`pwd \| sed -e 's,^./\([^/][^/]\)$$,\1,'`; \
d747cac4 DE	400	for dir in Makefile $(MULTIDIRS); do \
	401	if [ -f ../$${dir}/$${lib}/Makefile ]; then \
	402	if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
	403	then true; \
	404	else exit 1; \
	405	fi; \
	406	else true; \
	407	fi; \
	408	done; \
	409	fi
	410	EOF
	411
	412	cat ${Makefile} Multi.tem > Makefile.tem
	413	rm -f ${Makefile} Multi.tem
	414	mv Makefile.tem ${Makefile}
	415
	416	fi # ${ml_toplevel_p} = yes
	417
2a59259c	418	if [ "${ml_verbose}" = --verbose ]; then
d747cac4 DE	419	echo "Adding multilib support to Makefile in `pwd`"
	420	if [ "${ml_toplevel_p}" = yes ]; then
	421	echo "multidirs=${multidirs}"
	422	fi
	423	echo "with_multisubdir=${with_multisubdir}"
	424	fi
	425
	426	if [ "${srcdir}" = "." ]; then
	427	if [ "${with_target_subdir}" != "." ]; then
	428	ml_srcdotdot="../"
	429	else
	430	ml_srcdotdot=""
	431	fi
	432	else
	433	ml_srcdotdot=""
	434	fi
	435
	436	if [ -z "${with_multisubdir}" ]; then
	437	ml_subdir=
	438	ml_builddotdot=
	439	: # ml_srcdotdot= # already set
	440	else
	441	ml_subdir="/${with_multisubdir}"
	442	# The '[^/][^/]*' appears that way to work around a SunOS sed bug.
	443	ml_builddotdot=`echo ${with_multisubdir} \| sed -e 's:[^/][^/]*:..:g'`/
	444	if [ "$srcdir" = "." ]; then
	445	ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
	446	else
	447	: # ml_srcdotdot= # already set
	448	fi
	449	fi
	450
	451	if [ "${ml_toplevel_p}" = yes ]; then
	452	ml_do='$(MAKE)'
	453	ml_clean='$(MAKE)'
	454	else
	455	ml_do=true
	456	ml_clean=true
	457	fi
	458
	459	# TOP is used by newlib and should not be used elsewhere for this purpose.
	460	# MULTI{SRC,BUILD}TOP are the proper ones to use. MULTISRCTOP is empty
	461	# when srcdir != builddir. MULTIBUILDTOP is always some number of ../'s.
	462	# FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
	463	# delete TOP. Newlib may wish to continue to use TOP for its own purposes
	464	# of course.
	465	# MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
	466	# and lists the subdirectories to recurse into.
	467	# MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
	468	# (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
	469	# a leading '/'.
	470	# MULTIDO is used for targets like all, install, and check where
	471	# $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
	472	# MULTICLEAN is used for the *clean targets.
	473	#
	474	# ??? It is possible to merge MULTIDO and MULTICLEAN into one. They are
	475	# currently kept separate because we don't want the *clean targets to require
	476	# the existence of the compiler (which MULTIDO currently requires) and
	477	# therefore we'd have to record the directory options as well as names
	478	# (currently we just record the names and use --print-multi-lib to get the
	479	# options).
	480
	481	sed -e "s:^TOP[ ]=[ ]\([./]\)[ ]$:TOP = ${ml_builddotdot}\1:" \
	482	-e "s:^MULTISRCTOP[ ]=.$:MULTISRCTOP = ${ml_srcdotdot}:" \
483	-e "s:^MULTIBUILDTOP[ ]=.$:MULTIBUILDTOP = ${ml_builddotdot}:" \
484	-e "s:^MULTIDIRS[ ]=.$:MULTIDIRS = ${multidirs}:" \
485	-e "s:^MULTISUBDIR[ ]=.$:MULTISUBDIR = ${ml_subdir}:" \
486	-e "s:^MULTIDO[ ]=.$:MULTIDO = $ml_do:" \
487	-e "s:^MULTICLEAN[ ]=.$:MULTICLEAN = $ml_clean:" \
488	${Makefile} > Makefile.tem
489	rm -f ${Makefile}
490	mv Makefile.tem ${Makefile}
491
492	# If this is the library's top level, configure each multilib subdir.
493	# This is done at the end because this is the loop that runs configure
494	# in each multilib subdir and it seemed reasonable to finish updating the
495	# Makefile before going on to configure the subdirs.
496
497	if [ "${ml_toplevel_p}" = yes ]; then
498
499	# We must freshly configure each subdirectory. This bit of code is
500	# actually partially stolen from the main configure script. FIXME.
501
2a59259c	502	if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
d747cac4	503
2a59259c	504	if [ "${ml_verbose}" = --verbose ]; then
d747cac4 DE	505	echo "Running configure in multilib subdirs ${multidirs}"
	506	echo "pwd: `pwd`"
	507	fi
	508
	509	ml_origdir=`pwd`
	510	ml_libdir=`echo $ml_origdir \| sed -e 's,^.*/,,'`
	511	# cd to top-level-build-dir/${with_target_subdir}
	512	cd ..
	513
2a59259c	514	for ml_dir in ${multidirs}; do
d747cac4	515
2a59259c DE	516	if [ "${ml_verbose}" = --verbose ]; then
2a59259c DE	517	echo "Running configure in multilib subdir ${ml_dir}"
d747cac4 DE	518	echo "pwd: `pwd`"
	519	fi
	520
2a59259c DE	521	if [ -d ${ml_dir} ]; then true; else mkdir ${ml_dir}; fi
2a59259c DE	522	if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
d747cac4	523
2a59259c DE	524	# Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
2a59259c DE	525	dotdot=../`echo ${ml_dir} \| sed -e 's\|[^/]\|\|g' -e 's\|/\|../\|g'`
d747cac4 DE	526
	527	case ${srcdir} in
	528	".")
2a59259c	529	echo Building symlink tree in `pwd`/${ml_dir}/${ml_libdir}
d747cac4 DE	530	if [ "${with_target_subdir}" != "." ]; then
	531	ml_unsubdir="../"
	532	else
	533	ml_unsubdir=""
	534	fi
2a59259c	535	(cd ${ml_dir}/${ml_libdir};
d747cac4	536	../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
2a59259c DE	537	ml_newsrcdir="."
2a59259c DE	538	ml_srcdiroption=
d747cac4 DE	539	multisrctop=${dotdot}
	540	;;
	541	*)
	542	case "${srcdir}" in
	543	/*) # absolute path
2a59259c	544	ml_newsrcdir=${srcdir}
d747cac4 DE	545	;;
d747cac4 DE	546	*) # otherwise relative
2a59259c	547	ml_newsrcdir=${dotdot}${srcdir}
d747cac4 DE	548	;;
d747cac4 DE	549	esac
2a59259c	550	ml_srcdiroption="-srcdir=${ml_newsrcdir}"
d747cac4 DE	551	multisrctop=
	552	;;
	553	esac
	554
	555	case "${progname}" in
2a59259c DE	556	/*) ml_recprog=${progname} ;;
2a59259c DE	557	*) ml_recprog=${dotdot}${progname} ;;
d747cac4 DE	558	esac
	559
	560	# FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
	561	ML_POPDIR=`pwd`
2a59259c	562	cd ${ml_dir}/${ml_libdir}
d747cac4	563
2a59259c DE	564	if [ -f ${ml_newsrcdir}/configure ]; then
2a59259c DE	565	ml_recprog=${ml_newsrcdir}/configure
d747cac4	566	fi
2a59259c DE	567	if eval ${ml_config_shell} ${ml_recprog} \
	568	--with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
	569	${ml_arguments} ${ml_srcdiroption} ; then
d747cac4 DE	570	true
	571	else
	572	exit 1
	573	fi
	574
	575	cd ${ML_POPDIR}
	576
	577	done
	578
	579	cd ${ml_origdir}
	580	fi
	581
	582	fi # ${ml_toplevel_p} = yes
	583	fi # ${enable_multilib} = yes