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, 2008, 2010, 2011, 2014 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.ac.
  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 scan_arguments ()
 109 {
 110   ml_verbose=--verbose
 111   for option
 112   do
 113     # Strip single quotes surrounding individual options, that is, remove one
 114     # level of shell quoting for these.
 115     case $option in
 116       \'*\') eval option=$option ;;
 117     esac
 118
 119     case $option in
 120       --*) ;;
 121       -*) option=-$option ;;
 122     esac
 123
 124     case $option in
 125       --*=*)
 126         optarg=`echo $option | sed -e 's/^[^=]*=//'`
 127         ;;
 128     esac
 129
 130     case $option in
 131       --disable-*)
 132         enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 133         eval $enableopt=no
 134         ;;
 135       --enable-*)
 136         case "$option" in
 137         *=*)    ;;
 138         *)      optarg=yes ;;
 139         esac
 140         enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 141         # enable_shared and enable_static are handled by configure.
 142         # Don't undo its work.
 143         case $enableopt in
 144         enable_shared | enable_static) ;;
 145         *) eval $enableopt='$optarg' ;;
 146         esac
 147         ;;
 148       --norecursion | --no-recursion)
 149         ml_norecursion=yes
 150         ;;
 151       --silent | --sil* | --quiet | --q*)
 152         ml_verbose=--silent
 153         ;;
 154       --verbose | --v | --verb*)
 155         ml_verbose=--verbose
 156         ;;
 157       --with-*)
 158         case "$option" in
 159         *=*)    ;;
 160         *)      optarg=yes ;;
 161         esac
 162         withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 163         eval $withopt='$optarg'
 164         ;;
 165       --without-*)
 166         withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 167         eval $withopt=no
 168         ;;
 169     esac
 170   done
 171 }
 172 # Use eval to properly handle configure arguments such as
 173 # --enable-foo='--enable-a=1 --enable-b=2 --enable-c=3'.
 174 eval scan_arguments "${ac_configure_args}"
 175 unset scan_arguments
 176
 177 # Only do this if --enable-multilib.
 178 if [ "${enable_multilib}" = yes ]; then
 179
 180 # Compute whether this is the library's top level directory
 181 # (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
 182 # ${with_multisubdir} tells us we're in the right branch, but we could be
 183 # in a subdir of that.
 184 # ??? The previous version could void this test by separating the process into
 185 # two files: one that only the library's toplevel configure.ac ran (to
 186 # configure the multilib subdirs), and another that all configure.ac's ran to
 187 # update the Makefile.  It seemed reasonable to collapse all multilib support
 188 # into one file, but it does leave us with having to perform this test.
 189 ml_toplevel_p=no
 190 if [ -z "${with_multisubdir}" ]; then
 191   if [ "${srcdir}" = "." ]; then
 192     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 193     # ${with_target_subdir} = "." for native, otherwise target alias.
 194     if [ "${with_target_subdir}" = "." ]; then
 195       if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 196         ml_toplevel_p=yes
 197       fi
 198     else
 199       if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
 200         ml_toplevel_p=yes
 201       fi
 202     fi
 203   else
 204     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 205     if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 206       ml_toplevel_p=yes
 207     fi
 208   fi
 209 fi
 210
 211 # If this is the library's top level directory, set multidirs to the
 212 # multilib subdirs to support.  This lives at the top because we need
 213 # `multidirs' set right away.
 214
 215 if [ "${ml_toplevel_p}" = yes ]; then
 216
 217 multidirs=
 218 for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 219   dir=`echo $i | sed -e 's/;.*$//'`
 220   if [ "${dir}" = "." ]; then
 221     true
 222   else
 223     if [ -z "${multidirs}" ]; then
 224       multidirs="${dir}"
 225     else
 226       multidirs="${multidirs} ${dir}"
 227     fi
 228   fi
 229 done
 230
 231 # Target libraries are configured for the host they run on, so we check
 232 # $host here, not $target.
 233
 234 case "${host}" in
 235 arm-*-*)
 236         if [ x"$enable_fpu" = xno ]
 237         then
 238           old_multidirs=${multidirs}
 239           multidirs=""
 240           for x in ${old_multidirs}; do
 241             case "${x}" in
 242               *fpu*) : ;;
 243               *) multidirs="${multidirs} ${x}" ;;
 244             esac
 245           done
 246         fi
 247         if [ x"$enable_26bit" = xno ]
 248         then
 249           old_multidirs=${multidirs}
 250           multidirs=""
 251           for x in ${old_multidirs}; do
 252             case "${x}" in
 253               *26bit*) : ;;
 254               *) multidirs="${multidirs} ${x}" ;;
 255             esac
 256           done
 257         fi
 258         if [ x"$enable_underscore" = xno ]
 259         then
 260           old_multidirs=${multidirs}
 261           multidirs=""
 262           for x in ${old_multidirs}; do
 263             case "${x}" in
 264               *under*) : ;;
 265               *) multidirs="${multidirs} ${x}" ;;
 266             esac
 267           done
 268         fi
 269         if [ x"$enable_interwork" = xno ]
 270         then
 271           old_multidirs=${multidirs}
 272           multidirs=""
 273           for x in ${old_multidirs}; do
 274             case "${x}" in
 275               *interwork*) : ;;
 276               *) multidirs="${multidirs} ${x}" ;;
 277             esac
 278           done
 279         fi
 280         if [ x$enable_biendian = xno ]
 281         then
 282           old_multidirs="${multidirs}"
 283           multidirs=""
 284           for x in ${old_multidirs}; do
 285             case "$x" in
 286               *le* ) : ;;
 287               *be* ) : ;;
 288               *) multidirs="${multidirs} ${x}" ;;
 289             esac
 290           done
 291         fi
 292         if [ x"$enable_nofmult" = xno ]
 293         then
 294           old_multidirs="${multidirs}"
 295           multidirs=""
 296           for x in ${old_multidirs}; do
 297             case "$x" in
 298               *nofmult* ) : ;;
 299               *) multidirs="${multidirs} ${x}" ;;
 300             esac
 301           done
 302         fi
 303         ;;
 304 m68*-*-*)
 305         if [ x$enable_softfloat = xno ]
 306         then
 307           old_multidirs="${multidirs}"
 308           multidirs=""
 309           for x in ${old_multidirs}; do
 310             case "$x" in
 311               *soft-float* ) : ;;
 312               *) multidirs="${multidirs} ${x}" ;;
 313             esac
 314           done
 315         fi
 316         if [ x$enable_m68881 = xno ]
 317         then
 318           old_multidirs="${multidirs}"
 319           multidirs=""
 320           for x in ${old_multidirs}; do
 321             case "$x" in
 322               *m68881* ) : ;;
 323               *) multidirs="${multidirs} ${x}" ;;
 324             esac
 325           done
 326         fi
 327         if [ x$enable_m68000 = xno ]
 328         then
 329           old_multidirs="${multidirs}"
 330           multidirs=""
 331           for x in ${old_multidirs}; do
 332             case "$x" in
 333               *m68000* ) : ;;
 334               *) multidirs="${multidirs} ${x}" ;;
 335             esac
 336           done
 337         fi
 338         if [ x$enable_m68020 = xno ]
 339         then
 340           old_multidirs="${multidirs}"
 341           multidirs=""
 342           for x in ${old_multidirs}; do
 343             case "$x" in
 344               *m68020* ) : ;;
 345               *) multidirs="${multidirs} ${x}" ;;
 346             esac
 347           done
 348         fi
 349         ;;
 350 mips*-*-*)
 351         if [ x$enable_single_float = xno ]
 352         then
 353           old_multidirs="${multidirs}"
 354           multidirs=""
 355           for x in ${old_multidirs}; do
 356             case "$x" in
 357               *single* ) : ;;
 358               *) multidirs="${multidirs} ${x}" ;;
 359             esac
 360           done
 361         fi
 362         if [ x$enable_biendian = xno ]
 363         then
 364           old_multidirs="${multidirs}"
 365           multidirs=""
 366           for x in ${old_multidirs}; do
 367             case "$x" in
 368               *el* ) : ;;
 369               *eb* ) : ;;
 370               *) multidirs="${multidirs} ${x}" ;;
 371             esac
 372           done
 373         fi
 374         if [ x$enable_softfloat = xno ]
 375         then
 376           old_multidirs="${multidirs}"
 377           multidirs=""
 378           for x in ${old_multidirs}; do
 379             case "$x" in
 380               *soft-float* ) : ;;
 381               *) multidirs="${multidirs} ${x}" ;;
 382             esac
 383           done
 384         fi
 385         ;;
 386 msp430-*-*)
 387         if [ x$enable_no_exceptions = xno ]
 388         then
 389           old_multidirs="${multidirs}"
 390           multidirs=""
 391           for x in ${old_multidirs}; do
 392             case "$x" in
 393               *no-exceptions* ) : ;;
 394               *) multidirs="${multidirs} ${x}" ;;
 395             esac
 396           done
 397         fi
 398         ;;
 399 powerpc*-*-* | rs6000*-*-*)
 400         if [ x$enable_aix64 = xno ]
 401         then
 402           old_multidirs="${multidirs}"
 403           multidirs=""
 404           for x in ${old_multidirs}; do
 405             case "$x" in
 406               *ppc64* ) : ;;
 407               *) multidirs="${multidirs} ${x}" ;;
 408             esac
 409           done
 410         fi
 411         if [ x$enable_pthread = xno ]
 412         then
 413           old_multidirs="${multidirs}"
 414           multidirs=""
 415           for x in ${old_multidirs}; do
 416             case "$x" in
 417               *pthread* ) : ;;
 418               *) multidirs="${multidirs} ${x}" ;;
 419             esac
 420           done
 421         fi
 422         if [ x$enable_softfloat = xno ]
 423         then
 424           old_multidirs="${multidirs}"
 425           multidirs=""
 426           for x in ${old_multidirs}; do
 427             case "$x" in
 428               *soft-float* ) : ;;
 429               *) multidirs="${multidirs} ${x}" ;;
 430             esac
 431           done
 432         fi
 433         if [ x$enable_powercpu = xno ]
 434         then
 435           old_multidirs="${multidirs}"
 436           multidirs=""
 437           for x in ${old_multidirs}; do
 438             case "$x" in
 439               power | */power | */power/* ) : ;;
 440               *) multidirs="${multidirs} ${x}" ;;
 441             esac
 442           done
 443         fi
 444         if [ x$enable_powerpccpu = xno ]
 445         then
 446           old_multidirs="${multidirs}"
 447           multidirs=""
 448           for x in ${old_multidirs}; do
 449             case "$x" in
 450               *powerpc* ) : ;;
 451               *) multidirs="${multidirs} ${x}" ;;
 452             esac
 453           done
 454         fi
 455         if [ x$enable_powerpcos = xno ]
 456         then
 457           old_multidirs="${multidirs}"
 458           multidirs=""
 459           for x in ${old_multidirs}; do
 460             case "$x" in
 461               *mcall-linux* | *mcall-solaris* ) : ;;
 462               *) multidirs="${multidirs} ${x}" ;;
 463             esac
 464           done
 465         fi
 466         if [ x$enable_biendian = xno ]
 467         then
 468           old_multidirs="${multidirs}"
 469           multidirs=""
 470           for x in ${old_multidirs}; do
 471             case "$x" in
 472               *mlittle* | *mbig* ) : ;;
 473               *) multidirs="${multidirs} ${x}" ;;
 474             esac
 475           done
 476         fi
 477         if [ x$enable_sysv = xno ]
 478         then
 479           old_multidirs="${multidirs}"
 480           multidirs=""
 481           for x in ${old_multidirs}; do
 482             case "$x" in
 483               *mcall-sysv* ) : ;;
 484               *) multidirs="${multidirs} ${x}" ;;
 485             esac
 486           done
 487         fi
 488         ;;
 489 esac
 490
 491 # Remove extraneous blanks from multidirs.
 492 # Tests like `if [ -n "$multidirs" ]' require it.
 493 multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
 494
 495 # Add code to library's top level makefile to handle building the multilib
 496 # subdirs.
 497
 498 cat > Multi.tem <<\EOF
 499
 500 PWD_COMMAND=$${PWDCMD-pwd}
 501
 502 # FIXME: There should be an @-sign in front of the `if'.
 503 # Leave out until this is tested a bit more.
 504 multi-do:
 505         if [ -z "$(MULTIDIRS)" ]; then \
 506           true; \
 507         else \
 508           rootpre=`${PWD_COMMAND}`/; export rootpre; \
 509           srcrootpre=`cd $(srcdir); ${PWD_COMMAND}`/; export srcrootpre; \
 510           lib=`echo "$${rootpre}" | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 511           compiler="$(CC)"; \
 512           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
 513             dir=`echo $$i | sed -e 's/;.*$$//'`; \
 514             if [ "$${dir}" = "." ]; then \
 515               true; \
 516             else \
 517               if [ -d ../$${dir}/$${lib} ]; then \
 518                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
 519                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
 520                                 CFLAGS="$(CFLAGS) $${flags}" \
 521                                 CCASFLAGS="$(CCASFLAGS) $${flags}" \
 522                                 FCFLAGS="$(FCFLAGS) $${flags}" \
 523                                 FFLAGS="$(FFLAGS) $${flags}" \
 524                                 ADAFLAGS="$(ADAFLAGS) $${flags}" \
 525                                 prefix="$(prefix)" \
 526                                 exec_prefix="$(exec_prefix)" \
 527                                 GOCFLAGS="$(GOCFLAGS) $${flags}" \
 528                                 GDCFLAGS="$(GDCFLAGS) $${flags}" \
 529                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
 530                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
 531                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
 532                                 LDFLAGS="$(LDFLAGS) $${flags}" \
 533                                 MULTIFLAGS="$${flags}" \
 534                                 DESTDIR="$(DESTDIR)" \
 535                                 INSTALL="$(INSTALL)" \
 536                                 INSTALL_DATA="$(INSTALL_DATA)" \
 537                                 INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
 538                                 INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
 539                                 $(DO)); then \
 540                   true; \
 541                 else \
 542                   exit 1; \
 543                 fi; \
 544               else true; \
 545               fi; \
 546             fi; \
 547           done; \
 548         fi
 549
 550 # FIXME: There should be an @-sign in front of the `if'.
 551 # Leave out until this is tested a bit more.
 552 multi-clean:
 553         if [ -z "$(MULTIDIRS)" ]; then \
 554           true; \
 555         else \
 556           lib=`${PWD_COMMAND} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
 557           for dir in : $(MULTIDIRS); do \
 558             test $$dir != : || continue; \
 559 EOF
 560 cat >>Multi.tem <<EOF
 561             if [ -f ../\$\${dir}/\$\${lib}/${Makefile} ]; then \\
 562 EOF
 563 cat >>Multi.tem <<\EOF
 564               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
 565               then true; \
 566               else exit 1; \
 567               fi; \
 568             else true; \
 569             fi; \
 570           done; \
 571         fi
 572 EOF
 573
 574 cat ${Makefile} Multi.tem > Makefile.tem
 575 rm -f ${Makefile} Multi.tem
 576 mv Makefile.tem ${Makefile}
 577
 578 fi # ${ml_toplevel_p} = yes
 579
 580 if [ "${ml_verbose}" = --verbose ]; then
 581   echo "Adding multilib support to ${Makefile} in ${ml_realsrcdir}"
 582   if [ "${ml_toplevel_p}" = yes ]; then
 583     echo "multidirs=${multidirs}"
 584   fi
 585   echo "with_multisubdir=${with_multisubdir}"
 586 fi
 587
 588 if [ "${srcdir}" = "." ]; then
 589   if [ "${with_target_subdir}" != "." ]; then
 590     ml_srcdotdot="../"
 591   else
 592     ml_srcdotdot=""
 593   fi
 594 else
 595   ml_srcdotdot=""
 596 fi
 597
 598 if [ -z "${with_multisubdir}" ]; then
 599   ml_subdir=
 600   ml_builddotdot=
 601   : # ml_srcdotdot= # already set
 602 else
 603   ml_subdir="/${with_multisubdir}"
 604   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
 605   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
 606   if [ "$srcdir" = "." ]; then
 607     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
 608   else
 609     : # ml_srcdotdot= # already set
 610   fi
 611 fi
 612
 613 if [ "${ml_toplevel_p}" = yes ]; then
 614   ml_do='$(MAKE)'
 615   ml_clean='$(MAKE)'
 616 else
 617   ml_do=true
 618   ml_clean=true
 619 fi
 620
 621 # TOP is used by newlib and should not be used elsewhere for this purpose.
 622 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
 623 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
 624 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
 625 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
 626 # of course.
 627 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
 628 # and lists the subdirectories to recurse into.
 629 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
 630 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
 631 # a leading '/'.
 632 # MULTIDO is used for targets like all, install, and check where
 633 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
 634 # MULTICLEAN is used for the *clean targets.
 635 #
 636 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
 637 # currently kept separate because we don't want the *clean targets to require
 638 # the existence of the compiler (which MULTIDO currently requires) and
 639 # therefore we'd have to record the directory options as well as names
 640 # (currently we just record the names and use --print-multi-lib to get the
 641 # options).
 642
 643 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
 644     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
 645     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
 646     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
 647     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
 648     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
 649     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
 650         ${Makefile} > Makefile.tem
 651 rm -f ${Makefile}
 652 mv Makefile.tem ${Makefile}
 653
 654 # If this is the library's top level, configure each multilib subdir.
 655 # This is done at the end because this is the loop that runs configure
 656 # in each multilib subdir and it seemed reasonable to finish updating the
 657 # Makefile before going on to configure the subdirs.
 658
 659 if [ "${ml_toplevel_p}" = yes ]; then
 660
 661 # We must freshly configure each subdirectory.  This bit of code is
 662 # actually partially stolen from the main configure script.  FIXME.
 663
 664 if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
 665
 666   if [ "${ml_verbose}" = --verbose ]; then
 667     echo "Running configure in multilib subdirs ${multidirs}"
 668     echo "pwd: `${PWDCMD-pwd}`"
 669   fi
 670
 671   ml_origdir=`${PWDCMD-pwd}`
 672   ml_libdir=`echo "$ml_origdir" | sed -e 's,^.*/,,'`
 673   # cd to top-level-build-dir/${with_target_subdir}
 674   cd ..
 675
 676   for ml_dir in ${multidirs}; do
 677
 678     if [ "${ml_verbose}" = --verbose ]; then
 679       echo "Running configure in multilib subdir ${ml_dir}"
 680       echo "pwd: `${PWDCMD-pwd}`"
 681     fi
 682
 683     if [ -d ${ml_dir} ]; then true; else
 684       # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
 685       pathcomp=""
 686       for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
 687         pathcomp="$pathcomp$d"
 688         case "$pathcomp" in
 689           -* ) pathcomp=./$pathcomp ;;
 690         esac
 691         if test ! -d "$pathcomp"; then
 692            echo "mkdir $pathcomp" 1>&2
 693            mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
 694         fi
 695         if test ! -d "$pathcomp"; then
 696            exit $lasterr
 697         fi
 698         pathcomp="$pathcomp/"
 699       done
 700     fi
 701     if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
 702
 703     # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
 704     dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 705
 706     case ${srcdir} in
 707     ".")
 708       echo "Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}"
 709       if [ "${with_target_subdir}" != "." ]; then
 710         ml_unsubdir="../"
 711       else
 712         ml_unsubdir=""
 713       fi
 714       (cd ${ml_dir}/${ml_libdir};
 715        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
 716       if [ -f ${ml_dir}/${ml_libdir}/${Makefile} ]; then
 717         if [ x"${MAKE}" = x ]; then
 718           (cd ${ml_dir}/${ml_libdir}; make distclean)
 719         else
 720           (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
 721         fi
 722       fi
 723       ml_newsrcdir="."
 724       ml_srcdiroption=
 725       multisrctop=${dotdot}
 726       ;;
 727     *)
 728       case "${srcdir}" in
 729       /* | [A-Za-z]:[\\/]* ) # absolute path
 730         ml_newsrcdir=${srcdir}
 731         ;;
 732       *) # otherwise relative
 733         ml_newsrcdir=${dotdot}${srcdir}
 734         ;;
 735       esac
 736       ml_srcdiroption="-srcdir=${ml_newsrcdir}"
 737       multisrctop=
 738       ;;
 739     esac
 740
 741     case "${progname}" in
 742     /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
 743     *)      ml_recprog=${dotdot}${progname} ;;
 744     esac
 745
 746     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
 747     ML_POPDIR=`${PWDCMD-pwd}`
 748     cd ${ml_dir}/${ml_libdir}
 749
 750     if [ -f ${ml_newsrcdir}/configure ]; then
 751       ml_recprog="${ml_newsrcdir}/configure"
 752     fi
 753
 754     # find compiler flag corresponding to ${ml_dir}
 755     for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 756       dir=`echo $i | sed -e 's/;.*$//'`
 757       if [ "${dir}" = "${ml_dir}" ]; then
 758         flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
 759         break
 760       fi
 761     done
 762     ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" F77="${F77_}$flags" GFORTRAN="${GFORTRAN_}$flags" GOC="${GOC_}$flags" GDC="${GDC_}$flags"'
 763
 764     if [ "${with_target_subdir}" = "." ]; then
 765         CC_=$CC' '
 766         CXX_=$CXX' '
 767         F77_=$F77' '
 768         GFORTRAN_=$GFORTRAN' '
 769         GOC_=$GOC' '
 770         GDC_=$GDC' '
 771     else
 772         # Create a regular expression that matches any string as long
 773         # as ML_POPDIR.
 774         popdir_rx=`echo "${ML_POPDIR}" | sed 's,.,.,g'`
 775         CC_=
 776         for arg in ${CC}; do
 777           case $arg in
 778           -[BIL]"${ML_POPDIR}"/*)
 779             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"`' ' ;;
 780           "${ML_POPDIR}"/*)
 781             CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 782           *)
 783             CC_="${CC_}${arg} " ;;
 784           esac
 785         done
 786
 787         CXX_=
 788         for arg in ${CXX}; do
 789           case $arg in
 790           -[BIL]"${ML_POPDIR}"/*)
 791             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"`' ' ;;
 792           "${ML_POPDIR}"/*)
 793             CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 794           *)
 795             CXX_="${CXX_}${arg} " ;;
 796           esac
 797         done
 798
 799         F77_=
 800         for arg in ${F77}; do
 801           case $arg in
 802           -[BIL]"${ML_POPDIR}"/*)
 803             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"`' ' ;;
 804           "${ML_POPDIR}"/*)
 805             F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 806           *)
 807             F77_="${F77_}${arg} " ;;
 808           esac
 809         done
 810
 811         GFORTRAN_=
 812         for arg in ${GFORTRAN}; do
 813           case $arg in
 814           -[BIL]"${ML_POPDIR}"/*)
 815             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"`' ' ;;
 816           "${ML_POPDIR}"/*)
 817             GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 818           *)
 819             GFORTRAN_="${GFORTRAN_}${arg} " ;;
 820           esac
 821         done
 822
 823         GOC_=
 824         for arg in ${GOC}; do
 825           case $arg in
 826           -[BIL]"${ML_POPDIR}"/*)
 827             GOC_="${GOC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 828           "${ML_POPDIR}"/*)
 829             GOC_="${GOC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 830           *)
 831             GOC_="${GOC_}${arg} " ;;
 832           esac
 833         done
 834
 835         GDC_=
 836         for arg in ${GDC}; do
 837           case $arg in
 838           -[BIL]"${ML_POPDIR}"/*)
 839             GDC_="${GDC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 840           "${ML_POPDIR}"/*)
 841             GDC_="${GDC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 842           *)
 843             GDC_="${GDC_}${arg} " ;;
 844           esac
 845         done
 846
 847         if test "x${LD_LIBRARY_PATH+set}" = xset; then
 848           LD_LIBRARY_PATH_=
 849           for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
 850             case "$arg" in
 851             "${ML_POPDIR}"/*)
 852               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 853               ;;
 854             esac
 855             if test "x$LD_LIBRARY_PATH_" != x; then
 856               LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
 857             else
 858               LD_LIBRARY_PATH_=$arg
 859             fi
 860           done
 861           ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
 862         fi
 863
 864         if test "x${SHLIB_PATH+set}" = xset; then
 865           SHLIB_PATH_=
 866           for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
 867             case "$arg" in
 868             "${ML_POPDIR}"/*)
 869               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 870               ;;
 871             esac
 872             if test "x$SHLIB_PATH_" != x; then
 873               SHLIB_PATH_=$SHLIB_PATH_:$arg
 874             else
 875               SHLIB_PATH_=$arg
 876             fi
 877           done
 878           ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
 879         fi
 880     fi
 881
 882     if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
 883         --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
 884         "${ac_configure_args}" ${ml_config_env} ${ml_srcdiroption} ; then
 885       true
 886     else
 887       exit 1
 888     fi
 889
 890     cd "${ML_POPDIR}"
 891
 892   done
 893
 894   cd "${ml_origdir}"
 895 fi
 896
 897 fi # ${ml_toplevel_p} = yes
 898 fi # ${enable_multilib} = yes