kc3-lang/automake/lib/config-ml.in

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  Commit

• Hash : ea5ee093
  Author :
  Date : 2003-11-11T21:08:15
  

  * Makefile.am (fetch): Get all files from savannah.  Do not
  postprocess Struct.pm and XFiles.pm, since we now are the master
  of these.
  * lib/config.sub, lib/config.guess, lib/config-ml.in,
  lib/texinfo.tex: New upstream versions.
  

Download

• lib/config-ml.in

• # Configure fragment invoked in the post-target section for subdirs
  # wanting multilib support.
  #
  # Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003
  #   Free Software Foundation, Inc.
  #
  # This file is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation; either version 2 of the License, or
  # (at your option) any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place - Suite 330,
  # Boston, MA 02111-1307, USA.
  #
  # As a special exception to the GNU General Public License, if you
  # distribute this file as part of a program that contains a
  # configuration script generated by Autoconf, you may include it under
  # the same distribution terms that you use for the rest of that program.
  #
  # Please report bugs to <gcc-bugs@gnu.org>
  # and send patches to <gcc-patches@gnu.org>.
  
  # 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
  #
  #
  # 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
  #
  # ./
  #   newlib
  #   m68020/
  #          newlib
  #          m68881/
  #                 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.
  
  # Autoconf incoming variables:
  # srcdir, host, ac_configure_args
  #
  # We *could* figure srcdir and host out, but we'd have to do work that
  # our caller has already done to figure them out and requiring these two
  # seems reasonable.
  # Note that `host' in this case is GCC's `target'.  Target libraries are
  # configured for a particular host.
  
  Makefile=${ac_file-Makefile}
  ml_config_shell=${CONFIG_SHELL-/bin/sh}
  ml_realsrcdir=${srcdir}
  
  # Scan all the arguments and set all the ones we need.
  
  ml_verbose=--verbose
  for option in ${ac_configure_args}
  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-recursion)
  	ml_norecursion=yes
  	;;
    --silent | --sil* | --quiet | --q*)
  	ml_verbose=--silent
  	;;
    --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 newlib/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
  
  # Target libraries are configured for the host they run on, so we check
  # $host here, not $target.
  
  case "${host}" in
  arc-*-elf*)
  	if [ x$enable_biendian != xyes ]
  	then
  	  old_multidirs=${multidirs}
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "${x}" in
  	      *be*) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	    esac
  	  done
  	fi
  	;;
  arm-*-*)
  	if [ x"$enable_fpu" = xno ]
  	then
  	  old_multidirs=${multidirs}
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "${x}" in
  	      *fpu*) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	    esac
  	  done
  	fi
  	if [ x"$enable_26bit" = xno ]
  	then
  	  old_multidirs=${multidirs}
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "${x}" in
  	      *26bit*) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	    esac
  	  done
  	fi
  	if [ x"$enable_underscore" = xno ]
  	then
  	  old_multidirs=${multidirs}
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "${x}" in
  	      *under*) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	    esac
  	  done
  	fi
  	if [ x"$enable_interwork" = xno ]
  	then
  	  old_multidirs=${multidirs}
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "${x}" in
  	      *interwork*) : ;;
  	      *) 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
  	      *le* ) : ;;
  	      *be* ) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	    esac
  	  done
  	fi
  	if [ x"$enable_nofmult" = xno ]
  	then
  	  old_multidirs="${multidirs}"
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "$x" in
  	      *nofmult* ) : ;;
  	      *) 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
  	case " $multidirs " in
  	*" mabi=64 "*)
  	  # We will not be able to create libraries with -mabi=64 if
  	  # we cannot even link a trivial program.  It usually
  	  # indicates the 64bit libraries are missing.
  	  if echo 'main() {}' > conftest.c &&
  	     ${CC-gcc} -mabi=64 conftest.c -o conftest; then
  	    :
  	  else
  	    echo Could not link program with -mabi=64, disabling it.
  	    old_multidirs="${multidirs}"
  	    multidirs=""
  	    for x in ${old_multidirs}; do
  	      case "$x" in
  	      *mabi=64* ) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	      esac
  	    done
  	  fi
  	  rm -f conftest.c conftest
  	  ;;
  	esac
  	;;
  powerpc*-*-* | rs6000*-*-*)
  	if [ x$enable_aix64 = xno ]
  	then
  	  old_multidirs="${multidirs}"
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "$x" in
  	      *ppc64* ) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	    esac
  	  done
  	fi
  	if [ x$enable_pthread = xno ]
  	then
  	  old_multidirs="${multidirs}"
  	  multidirs=""
  	  for x in ${old_multidirs}; do
  	    case "$x" in
  	      *pthread* ) : ;;
  	      *) 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} ${x}" ;;
  	    esac
  	  done
  	fi
  	if [ x$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
  	;;
  sparc*-*-*)
  	case " $multidirs " in
  	*" m64 "*)
  	  # We will not be able to create libraries with -m64 if
  	  # we cannot even link a trivial program.  It usually
  	  # indicates the 64bit libraries are missing.
  	  if echo 'main() {}' > conftest.c &&
  	     ${CC-gcc} -m64 conftest.c -o conftest; then
  	    :
  	  else
  	    echo Could not link program with -m64, disabling it.
  	    old_multidirs="${multidirs}"
  	    multidirs=""
  	    for x in ${old_multidirs}; do
  	      case "$x" in
  	      *m64* ) : ;;
  	      *) multidirs="${multidirs} ${x}" ;;
  	      esac
  	    done
  	  fi
  	  rm -f conftest.c conftest
  	  ;;
  	esac
  	;;
  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
  
  PWD_COMMAND=$${PWDCMD-pwd}
  
  # 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_COMMAND}`/; export rootpre; \
  	  srcrootpre=`cd $(srcdir); ${PWD_COMMAND}`/; 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) $${flags}" \
  				prefix="$(prefix)" \
  				exec_prefix="$(exec_prefix)" \
  				GCJFLAGS="$(GCJFLAGS) $${flags}" \
  				CXXFLAGS="$(CXXFLAGS) $${flags}" \
  				LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
  				LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
  				LDFLAGS="$(LDFLAGS) $${flags}" \
  				MULTIFLAGS="$${flags}" \
  				DESTDIR="$(DESTDIR)" \
  				INSTALL="$(INSTALL)" \
  				INSTALL_DATA="$(INSTALL_DATA)" \
  				INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
  				INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
  				$(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_COMMAND} | 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 ${multidirs}"
      echo "pwd: `${PWDCMD-pwd}`"
    fi
  
    ml_origdir=`${PWDCMD-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 ${ml_dir}"
        echo "pwd: `${PWDCMD-pwd}`"
      fi
  
      if [ -d ${ml_dir} ]; then true; else
        # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
        pathcomp=""
        for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
          pathcomp="$pathcomp$d"
          case "$pathcomp" in
            -* ) pathcomp=./$pathcomp ;;
          esac
          if test ! -d "$pathcomp"; then
             echo "mkdir $pathcomp" 1>&2
             mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
          fi
          if test ! -d "$pathcomp"; then
  	   exit $lasterr
          fi
          pathcomp="$pathcomp/"
        done
      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 ${srcdir} in
      ".")
        echo Building symlink tree in `${PWDCMD-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} "")
        if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
  	if [ x"${MAKE}" = x ]; then
  	  (cd ${ml_dir}/${ml_libdir}; make distclean)
  	else
  	  (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
  	fi
        fi
        ml_newsrcdir="."
        ml_srcdiroption=
        multisrctop=${dotdot}
        ;;
      *)
        case "${srcdir}" in
        /* | [A-Za-z]:[\\/]* ) # absolute path
          ml_newsrcdir=${srcdir}
          ;;
        *) # otherwise relative
          ml_newsrcdir=${dotdot}${srcdir}
          ;;
        esac
        ml_srcdiroption="-srcdir=${ml_newsrcdir}"
        multisrctop=
        ;;
      esac
  
      case "${progname}" in
      /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
      *)      ml_recprog=${dotdot}${progname} ;;
      esac
  
      # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
      ML_POPDIR=`${PWDCMD-pwd}`
      cd ${ml_dir}/${ml_libdir}
  
      if [ -f ${ml_newsrcdir}/configure ]; then
        ml_recprog="${ml_newsrcdir}/configure --cache-file=../config.cache"
      fi
  
      # find compiler flag corresponding to ${ml_dir}
      for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
        dir=`echo $i | sed -e 's/;.*$//'`
        if [ "${dir}" = "${ml_dir}" ]; then
          flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
          break
        fi
      done
      ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" GCJ="${GCJ_}$flags"'
  
      if [ "${with_target_subdir}" = "." ]; then
  	CC_=$CC' '
  	CXX_=$CXX' '
  	GCJ_=$GCJ' '
      else
  	# Create a regular expression that matches any string as long
  	# as ML_POPDIR.
  	popdir_rx=`echo ${ML_POPDIR} | sed 's,.,.,g'`
  	CC_=
  	for arg in ${CC}; do
  	  case $arg in
  	  -[BIL]"${ML_POPDIR}"/*)
  	    CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\1/p"`' ' ;;
  	  "${ML_POPDIR}"/*)
  	    CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
  	  *)
  	    CC_="${CC_}${arg} " ;;
  	  esac
  	done
  
  	CXX_=
  	for arg in ${CXX}; do
  	  case $arg in
  	  -[BIL]"${ML_POPDIR}"/*)
  	    CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
  	  "${ML_POPDIR}"/*)
  	    CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
  	  *)
  	    CXX_="${CXX_}${arg} " ;;
  	  esac
  	done
  
  	GCJ_=
  	for arg in ${GCJ}; do
  	  case $arg in
  	  -[BIL]"${ML_POPDIR}"/*)
  	    GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
  	  "${ML_POPDIR}"/*)
  	    GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
  	  *)
  	    GCJ_="${GCJ_}${arg} " ;;
  	  esac
  	done
  
  	if test "x${LD_LIBRARY_PATH+set}" = xset; then
  	  LD_LIBRARY_PATH_=
  	  for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
  	    case "$arg" in
  	    "${ML_POPDIR}"/*)
  	      arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
  	      ;;
  	    esac
  	    if test "x$LD_LIBRARY_PATH_" != x; then
  	      LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
  	    else
  	      LD_LIBRARY_PATH_=$arg
  	    fi
            done
  	  ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
  	fi
  
  	if test "x${SHLIB_PATH+set}" = xset; then
  	  SHLIB_PATH_=
  	  for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
  	    case "$arg" in
  	    "${ML_POPDIR}"/*)
  	      arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
  	      ;;
  	    esac
  	    if test "x$SHLIB_PATH_" != x; then
  	      SHLIB_PATH_=$SHLIB_PATH_:$arg
  	    else
  	      SHLIB_PATH_=$arg
  	    fi
            done
  	  ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
  	fi
      fi
  
      if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
  	--with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
  	${ac_configure_args} ${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
  

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