config-ml.in

   1 # Configure fragment invoked in the post-target section for subdirs
   2 # wanting multilib support.
   3 #
   4 # Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   5 # 2005, 2006, 2007  Free Software Foundation, Inc.
   6 #
   7 # This file is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 # Boston, MA 02110-1301, USA.
  21 #
  22 # As a special exception to the GNU General Public License, if you
  23 # distribute this file as part of a program that contains a
  24 # configuration script generated by Autoconf, you may include it under
  25 # the same distribution terms that you use for the rest of that program.
  26 #
  27 # Please report bugs to <gcc-bugs@gnu.org>
  28 # and send patches to <gcc-patches@gnu.org>.
  29
  30 # It is advisable to support a few --enable/--disable options to let the
  31 # user select which libraries s/he really wants.
  32 #
  33 # Subdirectories wishing to use multilib should put the following lines
  34 # in the "post-target" section of configure.in.
  35 #
  36 # if [ "${srcdir}" = "." ] ; then
  37 #   if [ "${with_target_subdir}" != "." ] ; then
  38 #     . ${with_multisrctop}../../config-ml.in
  39 #   else
  40 #     . ${with_multisrctop}../config-ml.in
  41 #   fi
  42 # else
  43 #   . ${srcdir}/../config-ml.in
  44 # fi
  45 #
  46 #
  47 # Things are complicated because 6 separate cases must be handled:
  48 # 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
  49 #
  50 # srcdir=. is special.  It must handle make programs that don't handle VPATH.
  51 # To implement this, a symlink tree is built for each library and for each
  52 # multilib subdir.
  53 #
  54 # The build tree is layed out as
  55 #
  56 # ./
  57 #   newlib
  58 #   m68020/
  59 #          newlib
  60 #          m68881/
  61 #                 newlib
  62 #
  63 # The nice feature about this arrangement is that inter-library references
  64 # in the build tree work without having to care where you are.  Note that
  65 # inter-library references also work in the source tree because symlink trees
  66 # are built when srcdir=.
  67 #
  68 # Unfortunately, trying to access the libraries in the build tree requires
  69 # the user to manually choose which library to use as GCC won't be able to
  70 # find the right one.  This is viewed as the lesser of two evils.
  71 #
  72 # Configure variables:
  73 # ${with_target_subdir} = "." for native, or ${target_alias} for cross.
  74 # Set by top level Makefile.
  75 # ${with_multisrctop} = how many levels of multilibs there are in the source
  76 # tree.  It exists to handle the case of configuring in the source tree:
  77 # ${srcdir} is not constant.
  78 # ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
  79 #
  80 # Makefile variables:
  81 # MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
  82 # (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
  83 # MULTIBUILDTOP = number of multilib levels in build tree
  84 # MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
  85 # (only defined in each library's main Makefile).
  86 # MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
  87 # (only defined in each multilib subdir).
  88
  89 # FIXME: Multilib is currently disabled by default for everything other than
  90 # newlib.  It is up to each target to turn on multilib support for the other
  91 # libraries as desired.
  92
  93 # Autoconf incoming variables:
  94 # srcdir, host, ac_configure_args
  95 #
  96 # We *could* figure srcdir and host out, but we'd have to do work that
  97 # our caller has already done to figure them out and requiring these two
  98 # seems reasonable.
  99 # Note that `host' in this case is GCC's `target'.  Target libraries are
 100 # configured for a particular host.
 101
 102 Makefile=${ac_file-Makefile}
 103 ml_config_shell=${CONFIG_SHELL-/bin/sh}
 104 ml_realsrcdir=${srcdir}
 105
 106 # Scan all the arguments and set all the ones we need.
 107
 108 ml_verbose=--verbose
 109 for option in ${ac_configure_args}
 110 do
 111   # strip single quotes surrounding individual options
 112   case $option in
 113   \'*\') eval option=$option ;;
 114   esac
 115
 116   case $option in
 117   --*) ;;
 118   -*) option=-$option ;;
 119   esac
 120
 121   case $option in
 122   --*=*)
 123         optarg=`echo $option | sed -e 's/^[^=]*=//'`
 124         ;;
 125   esac
 126
 127   case $option in
 128   --disable-*)
 129         enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 130         eval $enableopt=no
 131         ;;
 132   --enable-*)
 133         case "$option" in
 134         *=*)    ;;
 135         *)      optarg=yes ;;
 136         esac
 137         enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 138         # enable_shared and enable_static are handled by configure.
 139         # Don't undo its work.
 140         case $enableopt in
 141         enable_shared | enable_static) ;;
 142         *) eval $enableopt="$optarg" ;;
 143         esac
 144         ;;
 145   --norecursion | --no-recursion)
 146         ml_norecursion=yes
 147         ;;
 148   --silent | --sil* | --quiet | --q*)
 149         ml_verbose=--silent
 150         ;;
 151   --verbose | --v | --verb*)
 152         ml_verbose=--verbose
 153         ;;
 154   --with-*)
 155         case "$option" in
 156         *=*)    ;;
 157         *)      optarg=yes ;;
 158         esac
 159         withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 160         eval $withopt="$optarg"
 161         ;;
 162   --without-*)
 163         withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 164         eval $withopt=no
 165         ;;
 166   esac
 167 done
 168
 169 # Only do this if --enable-multilib.
 170 if [ "${enable_multilib}" = yes ]; then
 171
 172 # Compute whether this is the library's top level directory
 173 # (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
 174 # ${with_multisubdir} tells us we're in the right branch, but we could be
 175 # in a subdir of that.
 176 # ??? The previous version could void this test by separating the process into
 177 # two files: one that only the library's toplevel configure.in ran (to
 178 # configure the multilib subdirs), and another that all configure.in's ran to
 179 # update the Makefile.  It seemed reasonable to collapse all multilib support
 180 # into one file, but it does leave us with having to perform this test.
 181 ml_toplevel_p=no
 182 if [ -z "${with_multisubdir}" ]; then
 183   if [ "${srcdir}" = "." ]; then
 184     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 185     # ${with_target_subdir} = "." for native, otherwise target alias.
 186     if [ "${with_target_subdir}" = "." ]; then
 187       if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 188         ml_toplevel_p=yes
 189       fi
 190     else
 191       if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
 192         ml_toplevel_p=yes
 193       fi
 194     fi
 195   else
 196     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 197     if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 198       ml_toplevel_p=yes
 199     fi
 200   fi
 201 fi
 202
 203 # If this is the library's top level directory, set multidirs to the
 204 # multilib subdirs to support.  This lives at the top because we need
 205 # `multidirs' set right away.
 206
 207 if [ "${ml_toplevel_p}" = yes ]; then
 208
 209 multidirs=
 210 for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 211   dir=`echo $i | sed -e 's/;.*$//'`
 212   if [ "${dir}" = "." ]; then
 213     true
 214   else
 215     if [ -z "${multidirs}" ]; then
 216       multidirs="${dir}"
 217     else
 218       multidirs="${multidirs} ${dir}"
 219     fi
 220   fi
 221 done
 222
 223 # Target libraries are configured for the host they run on, so we check
 224 # $host here, not $target.
 225
 226 case "${host}" in
 227 arc-*-elf*)
 228         if [ x$enable_biendian != xyes ]
 229         then
 230           old_multidirs=${multidirs}
 231           multidirs=""
 232           for x in ${old_multidirs}; do
 233             case "${x}" in
 234               *be*) : ;;
 235               *) multidirs="${multidirs} ${x}" ;;
 236             esac
 237           done
 238         fi
 239         ;;
 240 arm-*-*)
 241         if [ x"$enable_fpu" = xno ]
 242         then
 243           old_multidirs=${multidirs}
 244           multidirs=""
 245           for x in ${old_multidirs}; do
 246             case "${x}" in
 247               *fpu*) : ;;
 248               *) multidirs="${multidirs} ${x}" ;;
 249             esac
 250           done
 251         fi
 252         if [ x"$enable_26bit" = xno ]
 253         then
 254           old_multidirs=${multidirs}
 255           multidirs=""
 256           for x in ${old_multidirs}; do
 257             case "${x}" in
 258               *26bit*) : ;;
 259               *) multidirs="${multidirs} ${x}" ;;
 260             esac
 261           done
 262         fi
 263         if [ x"$enable_underscore" = xno ]
 264         then
 265           old_multidirs=${multidirs}
 266           multidirs=""
 267           for x in ${old_multidirs}; do
 268             case "${x}" in
 269               *under*) : ;;
 270               *) multidirs="${multidirs} ${x}" ;;
 271             esac
 272           done
 273         fi
 274         if [ x"$enable_interwork" = xno ]
 275         then
 276           old_multidirs=${multidirs}
 277           multidirs=""
 278           for x in ${old_multidirs}; do
 279             case "${x}" in
 280               *interwork*) : ;;
 281               *) multidirs="${multidirs} ${x}" ;;
 282             esac
 283           done
 284         fi
 285         if [ x$enable_biendian = xno ]
 286         then
 287           old_multidirs="${multidirs}"
 288           multidirs=""
 289           for x in ${old_multidirs}; do
 290             case "$x" in
 291               *le* ) : ;;
 292               *be* ) : ;;
 293               *) multidirs="${multidirs} ${x}" ;;
 294             esac
 295           done
 296         fi
 297         if [ x"$enable_nofmult" = xno ]
 298         then
 299           old_multidirs="${multidirs}"
 300           multidirs=""
 301           for x in ${old_multidirs}; do
 302             case "$x" in
 303               *nofmult* ) : ;;
 304               *) multidirs="${multidirs} ${x}" ;;
 305             esac
 306           done
 307         fi
 308         ;;
 309 m68*-*-*)
 310         if [ x$enable_softfloat = xno ]
 311         then
 312           old_multidirs="${multidirs}"
 313           multidirs=""
 314           for x in ${old_multidirs}; do
 315             case "$x" in
 316               *soft-float* ) : ;;
 317               *) multidirs="${multidirs} ${x}" ;;
 318             esac
 319           done
 320         fi
 321         if [ x$enable_m68881 = xno ]
 322         then
 323           old_multidirs="${multidirs}"
 324           multidirs=""
 325           for x in ${old_multidirs}; do
 326             case "$x" in
 327               *m68881* ) : ;;
 328               *) multidirs="${multidirs} ${x}" ;;
 329             esac
 330           done
 331         fi
 332         if [ x$enable_m68000 = xno ]
 333         then
 334           old_multidirs="${multidirs}"
 335           multidirs=""
 336           for x in ${old_multidirs}; do
 337             case "$x" in
 338               *m68000* ) : ;;
 339               *) multidirs="${multidirs} ${x}" ;;
 340             esac
 341           done
 342         fi
 343         if [ x$enable_m68020 = xno ]
 344         then
 345           old_multidirs="${multidirs}"
 346           multidirs=""
 347           for x in ${old_multidirs}; do
 348             case "$x" in
 349               *m68020* ) : ;;
 350               *) multidirs="${multidirs} ${x}" ;;
 351             esac
 352           done
 353         fi
 354         ;;
 355 mips*-*-*)
 356         if [ x$enable_single_float = xno ]
 357         then
 358           old_multidirs="${multidirs}"
 359           multidirs=""
 360           for x in ${old_multidirs}; do
 361             case "$x" in
 362               *single* ) : ;;
 363               *) multidirs="${multidirs} ${x}" ;;
 364             esac
 365           done
 366         fi
 367         if [ x$enable_biendian = xno ]
 368         then
 369           old_multidirs="${multidirs}"
 370           multidirs=""
 371           for x in ${old_multidirs}; do
 372             case "$x" in
 373               *el* ) : ;;
 374               *eb* ) : ;;
 375               *) multidirs="${multidirs} ${x}" ;;
 376             esac
 377           done
 378         fi
 379         if [ x$enable_softfloat = xno ]
 380         then
 381           old_multidirs="${multidirs}"
 382           multidirs=""
 383           for x in ${old_multidirs}; do
 384             case "$x" in
 385               *soft-float* ) : ;;
 386               *) multidirs="${multidirs} ${x}" ;;
 387             esac
 388           done
 389         fi
 390         ;;
 391 powerpc*-*-* | rs6000*-*-*)
 392         if [ x$enable_aix64 = xno ]
 393         then
 394           old_multidirs="${multidirs}"
 395           multidirs=""
 396           for x in ${old_multidirs}; do
 397             case "$x" in
 398               *ppc64* ) : ;;
 399               *) multidirs="${multidirs} ${x}" ;;
 400             esac
 401           done
 402         fi
 403         if [ x$enable_pthread = xno ]
 404         then
 405           old_multidirs="${multidirs}"
 406           multidirs=""
 407           for x in ${old_multidirs}; do
 408             case "$x" in
 409               *pthread* ) : ;;
 410               *) multidirs="${multidirs} ${x}" ;;
 411             esac
 412           done
 413         fi
 414         if [ x$enable_softfloat = xno ]
 415         then
 416           old_multidirs="${multidirs}"
 417           multidirs=""
 418           for x in ${old_multidirs}; do
 419             case "$x" in
 420               *soft-float* ) : ;;
 421               *) multidirs="${multidirs} ${x}" ;;
 422             esac
 423           done
 424         fi
 425         if [ x$enable_powercpu = xno ]
 426         then
 427           old_multidirs="${multidirs}"
 428           multidirs=""
 429           for x in ${old_multidirs}; do
 430             case "$x" in
 431               power | */power | */power/* ) : ;;
 432               *) multidirs="${multidirs} ${x}" ;;
 433             esac
 434           done
 435         fi
 436         if [ x$enable_powerpccpu = xno ]
 437         then
 438           old_multidirs="${multidirs}"
 439           multidirs=""
 440           for x in ${old_multidirs}; do
 441             case "$x" in
 442               *powerpc* ) : ;;
 443               *) multidirs="${multidirs} ${x}" ;;
 444             esac
 445           done
 446         fi
 447         if [ x$enable_powerpcos = xno ]
 448         then
 449           old_multidirs="${multidirs}"
 450           multidirs=""
 451           for x in ${old_multidirs}; do
 452             case "$x" in
 453               *mcall-linux* | *mcall-solaris* ) : ;;
 454               *) multidirs="${multidirs} ${x}" ;;
 455             esac
 456           done
 457         fi
 458         if [ x$enable_biendian = xno ]
 459         then
 460           old_multidirs="${multidirs}"
 461           multidirs=""
 462           for x in ${old_multidirs}; do
 463             case "$x" in
 464               *mlittle* | *mbig* ) : ;;
 465               *) multidirs="${multidirs} ${x}" ;;
 466             esac
 467           done
 468         fi
 469         if [ x$enable_sysv = xno ]
 470         then
 471           old_multidirs="${multidirs}"
 472           multidirs=""
 473           for x in ${old_multidirs}; do
 474             case "$x" in
 475               *mcall-sysv* ) : ;;
 476               *) multidirs="${multidirs} ${x}" ;;
 477             esac
 478           done
 479         fi
 480         ;;
 481 esac
 482
 483 # Remove extraneous blanks from multidirs.
 484 # Tests like `if [ -n "$multidirs" ]' require it.
 485 multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
 486
 487 # Add code to library's top level makefile to handle building the multilib
 488 # subdirs.
 489
 490 cat > Multi.tem <<\EOF
 491
 492 PWD_COMMAND=$${PWDCMD-pwd}
 493
 494 # FIXME: There should be an @-sign in front of the `if'.
 495 # Leave out until this is tested a bit more.
 496 multi-do:
 497         if [ -z "$(MULTIDIRS)" ]; then \
 498           true; \
 499         else \
 500           rootpre=`${PWD_COMMAND}`/; export rootpre; \
 501           srcrootpre=`cd $(srcdir); ${PWD_COMMAND}`/; export srcrootpre; \
 502           lib=`echo "$${rootpre}" | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 503           compiler="$(CC)"; \
 504           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
 505             dir=`echo $$i | sed -e 's/;.*$$//'`; \
 506             if [ "$${dir}" = "." ]; then \
 507               true; \
 508             else \
 509               if [ -d ../$${dir}/$${lib} ]; then \
 510                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
 511                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
 512                                 CFLAGS="$(CFLAGS) $${flags}" \
 513                                 CCASFLAGS="$(CCASFLAGS) $${flags}" \
 514                                 FCFLAGS="$(FCFLAGS) $${flags}" \
 515                                 FFLAGS="$(FFLAGS) $${flags}" \
 516                                 ADAFLAGS="$(ADAFLAGS) $${flags}" \
 517                                 prefix="$(prefix)" \
 518                                 exec_prefix="$(exec_prefix)" \
 519                                 GCJFLAGS="$(GCJFLAGS) $${flags}" \
 520                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
 521                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
 522                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
 523                                 LDFLAGS="$(LDFLAGS) $${flags}" \
 524                                 MULTIFLAGS="$${flags}" \
 525                                 DESTDIR="$(DESTDIR)" \
 526                                 INSTALL="$(INSTALL)" \
 527                                 INSTALL_DATA="$(INSTALL_DATA)" \
 528                                 INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
 529                                 INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
 530                                 $(DO)); then \
 531                   true; \
 532                 else \
 533                   exit 1; \
 534                 fi; \
 535               else true; \
 536               fi; \
 537             fi; \
 538           done; \
 539         fi
 540
 541 # FIXME: There should be an @-sign in front of the `if'.
 542 # Leave out until this is tested a bit more.
 543 multi-clean:
 544         if [ -z "$(MULTIDIRS)" ]; then \
 545           true; \
 546         else \
 547           lib=`${PWD_COMMAND} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
 548           for dir in : $(MULTIDIRS); do \
 549             test $$dir != : || continue; \
 550 EOF
 551 cat >>Multi.tem <<EOF
 552             if [ -f ../\$\${dir}/\$\${lib}/${Makefile} ]; then \\
 553 EOF
 554 cat >>Multi.tem <<\EOF
 555               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
 556               then true; \
 557               else exit 1; \
 558               fi; \
 559             else true; \
 560             fi; \
 561           done; \
 562         fi
 563 EOF
 564
 565 cat ${Makefile} Multi.tem > Makefile.tem
 566 rm -f ${Makefile} Multi.tem
 567 mv Makefile.tem ${Makefile}
 568
 569 fi # ${ml_toplevel_p} = yes
 570
 571 if [ "${ml_verbose}" = --verbose ]; then
 572   echo "Adding multilib support to ${Makefile} in ${ml_realsrcdir}"
 573   if [ "${ml_toplevel_p}" = yes ]; then
 574     echo "multidirs=${multidirs}"
 575   fi
 576   echo "with_multisubdir=${with_multisubdir}"
 577 fi
 578
 579 if [ "${srcdir}" = "." ]; then
 580   if [ "${with_target_subdir}" != "." ]; then
 581     ml_srcdotdot="../"
 582   else
 583     ml_srcdotdot=""
 584   fi
 585 else
 586   ml_srcdotdot=""
 587 fi
 588
 589 if [ -z "${with_multisubdir}" ]; then
 590   ml_subdir=
 591   ml_builddotdot=
 592   : # ml_srcdotdot= # already set
 593 else
 594   ml_subdir="/${with_multisubdir}"
 595   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
 596   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
 597   if [ "$srcdir" = "." ]; then
 598     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
 599   else
 600     : # ml_srcdotdot= # already set
 601   fi
 602 fi
 603
 604 if [ "${ml_toplevel_p}" = yes ]; then
 605   ml_do='$(MAKE)'
 606   ml_clean='$(MAKE)'
 607 else
 608   ml_do=true
 609   ml_clean=true
 610 fi
 611
 612 # TOP is used by newlib and should not be used elsewhere for this purpose.
 613 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
 614 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
 615 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
 616 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
 617 # of course.
 618 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
 619 # and lists the subdirectories to recurse into.
 620 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
 621 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
 622 # a leading '/'.
 623 # MULTIDO is used for targets like all, install, and check where
 624 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
 625 # MULTICLEAN is used for the *clean targets.
 626 #
 627 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
 628 # currently kept separate because we don't want the *clean targets to require
 629 # the existence of the compiler (which MULTIDO currently requires) and
 630 # therefore we'd have to record the directory options as well as names
 631 # (currently we just record the names and use --print-multi-lib to get the
 632 # options).
 633
 634 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
 635     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
 636     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
 637     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
 638     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
 639     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
 640     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
 641         ${Makefile} > Makefile.tem
 642 rm -f ${Makefile}
 643 mv Makefile.tem ${Makefile}
 644
 645 # If this is the library's top level, configure each multilib subdir.
 646 # This is done at the end because this is the loop that runs configure
 647 # in each multilib subdir and it seemed reasonable to finish updating the
 648 # Makefile before going on to configure the subdirs.
 649
 650 if [ "${ml_toplevel_p}" = yes ]; then
 651
 652 # We must freshly configure each subdirectory.  This bit of code is
 653 # actually partially stolen from the main configure script.  FIXME.
 654
 655 if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
 656
 657   if [ "${ml_verbose}" = --verbose ]; then
 658     echo "Running configure in multilib subdirs ${multidirs}"
 659     echo "pwd: `${PWDCMD-pwd}`"
 660   fi
 661
 662   ml_origdir=`${PWDCMD-pwd}`
 663   ml_libdir=`echo "$ml_origdir" | sed -e 's,^.*/,,'`
 664   # cd to top-level-build-dir/${with_target_subdir}
 665   cd ..
 666
 667   for ml_dir in ${multidirs}; do
 668
 669     if [ "${ml_verbose}" = --verbose ]; then
 670       echo "Running configure in multilib subdir ${ml_dir}"
 671       echo "pwd: `${PWDCMD-pwd}`"
 672     fi
 673
 674     if [ -d ${ml_dir} ]; then true; else
 675       # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
 676       pathcomp=""
 677       for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
 678         pathcomp="$pathcomp$d"
 679         case "$pathcomp" in
 680           -* ) pathcomp=./$pathcomp ;;
 681         esac
 682         if test ! -d "$pathcomp"; then
 683            echo "mkdir $pathcomp" 1>&2
 684            mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
 685         fi
 686         if test ! -d "$pathcomp"; then
 687            exit $lasterr
 688         fi
 689         pathcomp="$pathcomp/"
 690       done
 691     fi
 692     if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
 693
 694     # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
 695     dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 696
 697     case ${srcdir} in
 698     ".")
 699       echo "Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}"
 700       if [ "${with_target_subdir}" != "." ]; then
 701         ml_unsubdir="../"
 702       else
 703         ml_unsubdir=""
 704       fi
 705       (cd ${ml_dir}/${ml_libdir};
 706        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
 707       if [ -f ${ml_dir}/${ml_libdir}/${Makefile} ]; then
 708         if [ x"${MAKE}" = x ]; then
 709           (cd ${ml_dir}/${ml_libdir}; make distclean)
 710         else
 711           (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
 712         fi
 713       fi
 714       ml_newsrcdir="."
 715       ml_srcdiroption=
 716       multisrctop=${dotdot}
 717       ;;
 718     *)
 719       case "${srcdir}" in
 720       /* | [A-Za-z]:[\\/]* ) # absolute path
 721         ml_newsrcdir=${srcdir}
 722         ;;
 723       *) # otherwise relative
 724         ml_newsrcdir=${dotdot}${srcdir}
 725         ;;
 726       esac
 727       ml_srcdiroption="-srcdir=${ml_newsrcdir}"
 728       multisrctop=
 729       ;;
 730     esac
 731
 732     case "${progname}" in
 733     /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
 734     *)      ml_recprog=${dotdot}${progname} ;;
 735     esac
 736
 737     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
 738     ML_POPDIR=`${PWDCMD-pwd}`
 739     cd ${ml_dir}/${ml_libdir}
 740
 741     if [ -f ${ml_newsrcdir}/configure ]; then
 742       ml_recprog="${ml_newsrcdir}/configure"
 743     fi
 744
 745     # find compiler flag corresponding to ${ml_dir}
 746     for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 747       dir=`echo $i | sed -e 's/;.*$//'`
 748       if [ "${dir}" = "${ml_dir}" ]; then
 749         flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
 750         break
 751       fi
 752     done
 753     ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" F77="${F77_}$flags" GCJ="${GCJ_}$flags" GFORTRAN="${GFORTRAN_}$flags"'
 754
 755     if [ "${with_target_subdir}" = "." ]; then
 756         CC_=$CC' '
 757         CXX_=$CXX' '
 758         F77_=$F77' '
 759         GCJ_=$GCJ' '
 760         GFORTRAN_=$GFORTRAN' '
 761     else
 762         # Create a regular expression that matches any string as long
 763         # as ML_POPDIR.
 764         popdir_rx=`echo "${ML_POPDIR}" | sed 's,.,.,g'`
 765         CC_=
 766         for arg in ${CC}; do
 767           case $arg in
 768           -[BIL]"${ML_POPDIR}"/*)
 769             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"`' ' ;;
 770           "${ML_POPDIR}"/*)
 771             CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 772           *)
 773             CC_="${CC_}${arg} " ;;
 774           esac
 775         done
 776
 777         CXX_=
 778         for arg in ${CXX}; do
 779           case $arg in
 780           -[BIL]"${ML_POPDIR}"/*)
 781             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"`' ' ;;
 782           "${ML_POPDIR}"/*)
 783             CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 784           *)
 785             CXX_="${CXX_}${arg} " ;;
 786           esac
 787         done
 788
 789         F77_=
 790         for arg in ${F77}; do
 791           case $arg in
 792           -[BIL]"${ML_POPDIR}"/*)
 793             F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 794           "${ML_POPDIR}"/*)
 795             F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 796           *)
 797             F77_="${F77_}${arg} " ;;
 798           esac
 799         done
 800
 801         GCJ_=
 802         for arg in ${GCJ}; do
 803           case $arg in
 804           -[BIL]"${ML_POPDIR}"/*)
 805             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"`' ' ;;
 806           "${ML_POPDIR}"/*)
 807             GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 808           *)
 809             GCJ_="${GCJ_}${arg} " ;;
 810           esac
 811         done
 812
 813         GFORTRAN_=
 814         for arg in ${GFORTRAN}; do
 815           case $arg in
 816           -[BIL]"${ML_POPDIR}"/*)
 817             GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 818           "${ML_POPDIR}"/*)
 819             GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 820           *)
 821             GFORTRAN_="${GFORTRAN_}${arg} " ;;
 822           esac
 823         done
 824
 825         if test "x${LD_LIBRARY_PATH+set}" = xset; then
 826           LD_LIBRARY_PATH_=
 827           for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
 828             case "$arg" in
 829             "${ML_POPDIR}"/*)
 830               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 831               ;;
 832             esac
 833             if test "x$LD_LIBRARY_PATH_" != x; then
 834               LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
 835             else
 836               LD_LIBRARY_PATH_=$arg
 837             fi
 838           done
 839           ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
 840         fi
 841
 842         if test "x${SHLIB_PATH+set}" = xset; then
 843           SHLIB_PATH_=
 844           for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
 845             case "$arg" in
 846             "${ML_POPDIR}"/*)
 847               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 848               ;;
 849             esac
 850             if test "x$SHLIB_PATH_" != x; then
 851               SHLIB_PATH_=$SHLIB_PATH_:$arg
 852             else
 853               SHLIB_PATH_=$arg
 854             fi
 855           done
 856           ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
 857         fi
 858     fi
 859
 860     if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
 861         --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
 862         ${ac_configure_args} ${ml_config_env} ${ml_srcdiroption} ; then
 863       true
 864     else
 865       exit 1
 866     fi
 867
 868     cd "${ML_POPDIR}"
 869
 870   done
 871
 872   cd "${ml_origdir}"
 873 fi
 874
 875 fi # ${ml_toplevel_p} = yes
 876 fi # ${enable_multilib} = yes