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.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 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 # ${with_multisubdir} tells us we're in the right branch, but we could be
 183 # in a subdir of that.
 184 # ??? The previous version could void this test by separating the process into
 185 # two files: one that only the library's toplevel configure.in ran (to
 186 # configure the multilib subdirs), and another that all configure.in's ran to
 187 # update the Makefile.  It seemed reasonable to collapse all multilib support
 188 # into one file, but it does leave us with having to perform this test.
 189 ml_toplevel_p=no
 190 if [ -z "${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} ${x}" ;;
 382             esac
 383           done
 384         fi
 385         ;;
 386 powerpc*-*-* | rs6000*-*-*)
 387         if [ x$enable_aix64 = xno ]
 388         then
 389           old_multidirs="${multidirs}"
 390           multidirs=""
 391           for x in ${old_multidirs}; do
 392             case "$x" in
 393               *ppc64* ) : ;;
 394               *) multidirs="${multidirs} ${x}" ;;
 395             esac
 396           done
 397         fi
 398         if [ x$enable_pthread = xno ]
 399         then
 400           old_multidirs="${multidirs}"
 401           multidirs=""
 402           for x in ${old_multidirs}; do
 403             case "$x" in
 404               *pthread* ) : ;;
 405               *) multidirs="${multidirs} ${x}" ;;
 406             esac
 407           done
 408         fi
 409         if [ x$enable_softfloat = xno ]
 410         then
 411           old_multidirs="${multidirs}"
 412           multidirs=""
 413           for x in ${old_multidirs}; do
 414             case "$x" in
 415               *soft-float* ) : ;;
 416               *) multidirs="${multidirs} ${x}" ;;
 417             esac
 418           done
 419         fi
 420         if [ x$enable_powercpu = xno ]
 421         then
 422           old_multidirs="${multidirs}"
 423           multidirs=""
 424           for x in ${old_multidirs}; do
 425             case "$x" in
 426               power | */power | */power/* ) : ;;
 427               *) multidirs="${multidirs} ${x}" ;;
 428             esac
 429           done
 430         fi
 431         if [ x$enable_powerpccpu = xno ]
 432         then
 433           old_multidirs="${multidirs}"
 434           multidirs=""
 435           for x in ${old_multidirs}; do
 436             case "$x" in
 437               *powerpc* ) : ;;
 438               *) multidirs="${multidirs} ${x}" ;;
 439             esac
 440           done
 441         fi
 442         if [ x$enable_powerpcos = xno ]
 443         then
 444           old_multidirs="${multidirs}"
 445           multidirs=""
 446           for x in ${old_multidirs}; do
 447             case "$x" in
 448               *mcall-linux* | *mcall-solaris* ) : ;;
 449               *) multidirs="${multidirs} ${x}" ;;
 450             esac
 451           done
 452         fi
 453         if [ x$enable_biendian = xno ]
 454         then
 455           old_multidirs="${multidirs}"
 456           multidirs=""
 457           for x in ${old_multidirs}; do
 458             case "$x" in
 459               *mlittle* | *mbig* ) : ;;
 460               *) multidirs="${multidirs} ${x}" ;;
 461             esac
 462           done
 463         fi
 464         if [ x$enable_sysv = xno ]
 465         then
 466           old_multidirs="${multidirs}"
 467           multidirs=""
 468           for x in ${old_multidirs}; do
 469             case "$x" in
 470               *mcall-sysv* ) : ;;
 471               *) multidirs="${multidirs} ${x}" ;;
 472             esac
 473           done
 474         fi
 475         ;;
 476 esac
 477
 478 # Remove extraneous blanks from multidirs.
 479 # Tests like `if [ -n "$multidirs" ]' require it.
 480 multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
 481
 482 # Add code to library's top level makefile to handle building the multilib
 483 # subdirs.
 484
 485 cat > Multi.tem <<\EOF
 486
 487 PWD_COMMAND=$${PWDCMD-pwd}
 488
 489 # FIXME: There should be an @-sign in front of the `if'.
 490 # Leave out until this is tested a bit more.
 491 multi-do:
 492         if [ -z "$(MULTIDIRS)" ]; then \
 493           true; \
 494         else \
 495           rootpre=`${PWD_COMMAND}`/; export rootpre; \
 496           srcrootpre=`cd $(srcdir); ${PWD_COMMAND}`/; export srcrootpre; \
 497           lib=`echo "$${rootpre}" | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 498           compiler="$(CC)"; \
 499           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
 500             dir=`echo $$i | sed -e 's/;.*$$//'`; \
 501             if [ "$${dir}" = "." ]; then \
 502               true; \
 503             else \
 504               if [ -d ../$${dir}/$${lib} ]; then \
 505                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
 506                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
 507                                 CFLAGS="$(CFLAGS) $${flags}" \
 508                                 CCASFLAGS="$(CCASFLAGS) $${flags}" \
 509                                 FCFLAGS="$(FCFLAGS) $${flags}" \
 510                                 FFLAGS="$(FFLAGS) $${flags}" \
 511                                 ADAFLAGS="$(ADAFLAGS) $${flags}" \
 512                                 prefix="$(prefix)" \
 513                                 exec_prefix="$(exec_prefix)" \
 514                                 GCJFLAGS="$(GCJFLAGS) $${flags}" \
 515                                 GOCFLAGS="$(GOCFLAGS) $${flags}" \
 516                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
 517                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
 518                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
 519                                 LDFLAGS="$(LDFLAGS) $${flags}" \
 520                                 MULTIFLAGS="$${flags}" \
 521                                 DESTDIR="$(DESTDIR)" \
 522                                 INSTALL="$(INSTALL)" \
 523                                 INSTALL_DATA="$(INSTALL_DATA)" \
 524                                 INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
 525                                 INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
 526                                 $(DO)); then \
 527                   true; \
 528                 else \
 529                   exit 1; \
 530                 fi; \
 531               else true; \
 532               fi; \
 533             fi; \
 534           done; \
 535         fi
 536
 537 # FIXME: There should be an @-sign in front of the `if'.
 538 # Leave out until this is tested a bit more.
 539 multi-clean:
 540         if [ -z "$(MULTIDIRS)" ]; then \
 541           true; \
 542         else \
 543           lib=`${PWD_COMMAND} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
 544           for dir in : $(MULTIDIRS); do \
 545             test $$dir != : || continue; \
 546 EOF
 547 cat >>Multi.tem <<EOF
 548             if [ -f ../\$\${dir}/\$\${lib}/${Makefile} ]; then \\
 549 EOF
 550 cat >>Multi.tem <<\EOF
 551               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
 552               then true; \
 553               else exit 1; \
 554               fi; \
 555             else true; \
 556             fi; \
 557           done; \
 558         fi
 559 EOF
 560
 561 cat ${Makefile} Multi.tem > Makefile.tem
 562 rm -f ${Makefile} Multi.tem
 563 mv Makefile.tem ${Makefile}
 564
 565 fi # ${ml_toplevel_p} = yes
 566
 567 if [ "${ml_verbose}" = --verbose ]; then
 568   echo "Adding multilib support to ${Makefile} in ${ml_realsrcdir}"
 569   if [ "${ml_toplevel_p}" = yes ]; then
 570     echo "multidirs=${multidirs}"
 571   fi
 572   echo "with_multisubdir=${with_multisubdir}"
 573 fi
 574
 575 if [ "${srcdir}" = "." ]; then
 576   if [ "${with_target_subdir}" != "." ]; then
 577     ml_srcdotdot="../"
 578   else
 579     ml_srcdotdot=""
 580   fi
 581 else
 582   ml_srcdotdot=""
 583 fi
 584
 585 if [ -z "${with_multisubdir}" ]; then
 586   ml_subdir=
 587   ml_builddotdot=
 588   : # ml_srcdotdot= # already set
 589 else
 590   ml_subdir="/${with_multisubdir}"
 591   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
 592   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
 593   if [ "$srcdir" = "." ]; then
 594     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
 595   else
 596     : # ml_srcdotdot= # already set
 597   fi
 598 fi
 599
 600 if [ "${ml_toplevel_p}" = yes ]; then
 601   ml_do='$(MAKE)'
 602   ml_clean='$(MAKE)'
 603 else
 604   ml_do=true
 605   ml_clean=true
 606 fi
 607
 608 # TOP is used by newlib and should not be used elsewhere for this purpose.
 609 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
 610 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
 611 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
 612 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
 613 # of course.
 614 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
 615 # and lists the subdirectories to recurse into.
 616 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
 617 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
 618 # a leading '/'.
 619 # MULTIDO is used for targets like all, install, and check where
 620 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
 621 # MULTICLEAN is used for the *clean targets.
 622 #
 623 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
 624 # currently kept separate because we don't want the *clean targets to require
 625 # the existence of the compiler (which MULTIDO currently requires) and
 626 # therefore we'd have to record the directory options as well as names
 627 # (currently we just record the names and use --print-multi-lib to get the
 628 # options).
 629
 630 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
 631     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
 632     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
 633     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
 634     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
 635     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
 636     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
 637         ${Makefile} > Makefile.tem
 638 rm -f ${Makefile}
 639 mv Makefile.tem ${Makefile}
 640
 641 # If this is the library's top level, configure each multilib subdir.
 642 # This is done at the end because this is the loop that runs configure
 643 # in each multilib subdir and it seemed reasonable to finish updating the
 644 # Makefile before going on to configure the subdirs.
 645
 646 if [ "${ml_toplevel_p}" = yes ]; then
 647
 648 # We must freshly configure each subdirectory.  This bit of code is
 649 # actually partially stolen from the main configure script.  FIXME.
 650
 651 if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
 652
 653   if [ "${ml_verbose}" = --verbose ]; then
 654     echo "Running configure in multilib subdirs ${multidirs}"
 655     echo "pwd: `${PWDCMD-pwd}`"
 656   fi
 657
 658   ml_origdir=`${PWDCMD-pwd}`
 659   ml_libdir=`echo "$ml_origdir" | sed -e 's,^.*/,,'`
 660   # cd to top-level-build-dir/${with_target_subdir}
 661   cd ..
 662
 663   for ml_dir in ${multidirs}; do
 664
 665     if [ "${ml_verbose}" = --verbose ]; then
 666       echo "Running configure in multilib subdir ${ml_dir}"
 667       echo "pwd: `${PWDCMD-pwd}`"
 668     fi
 669
 670     if [ -d ${ml_dir} ]; then true; else
 671       # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
 672       pathcomp=""
 673       for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
 674         pathcomp="$pathcomp$d"
 675         case "$pathcomp" in
 676           -* ) pathcomp=./$pathcomp ;;
 677         esac
 678         if test ! -d "$pathcomp"; then
 679            echo "mkdir $pathcomp" 1>&2
 680            mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
 681         fi
 682         if test ! -d "$pathcomp"; then
 683            exit $lasterr
 684         fi
 685         pathcomp="$pathcomp/"
 686       done
 687     fi
 688     if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
 689
 690     # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
 691     dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 692
 693     case ${srcdir} in
 694     ".")
 695       echo "Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}"
 696       if [ "${with_target_subdir}" != "." ]; then
 697         ml_unsubdir="../"
 698       else
 699         ml_unsubdir=""
 700       fi
 701       (cd ${ml_dir}/${ml_libdir};
 702        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
 703       if [ -f ${ml_dir}/${ml_libdir}/${Makefile} ]; then
 704         if [ x"${MAKE}" = x ]; then
 705           (cd ${ml_dir}/${ml_libdir}; make distclean)
 706         else
 707           (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
 708         fi
 709       fi
 710       ml_newsrcdir="."
 711       ml_srcdiroption=
 712       multisrctop=${dotdot}
 713       ;;
 714     *)
 715       case "${srcdir}" in
 716       /* | [A-Za-z]:[\\/]* ) # absolute path
 717         ml_newsrcdir=${srcdir}
 718         ;;
 719       *) # otherwise relative
 720         ml_newsrcdir=${dotdot}${srcdir}
 721         ;;
 722       esac
 723       ml_srcdiroption="-srcdir=${ml_newsrcdir}"
 724       multisrctop=
 725       ;;
 726     esac
 727
 728     case "${progname}" in
 729     /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
 730     *)      ml_recprog=${dotdot}${progname} ;;
 731     esac
 732
 733     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
 734     ML_POPDIR=`${PWDCMD-pwd}`
 735     cd ${ml_dir}/${ml_libdir}
 736
 737     if [ -f ${ml_newsrcdir}/configure ]; then
 738       ml_recprog="${ml_newsrcdir}/configure"
 739     fi
 740
 741     # find compiler flag corresponding to ${ml_dir}
 742     for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 743       dir=`echo $i | sed -e 's/;.*$//'`
 744       if [ "${dir}" = "${ml_dir}" ]; then
 745         flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
 746         break
 747       fi
 748     done
 749     ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" F77="${F77_}$flags" GCJ="${GCJ_}$flags" GFORTRAN="${GFORTRAN_}$flags" GOC="${GOC_}$flags"'
 750
 751     if [ "${with_target_subdir}" = "." ]; then
 752         CC_=$CC' '
 753         CXX_=$CXX' '
 754         F77_=$F77' '
 755         GCJ_=$GCJ' '
 756         GFORTRAN_=$GFORTRAN' '
 757         GOC_=$GOC' '
 758     else
 759         # Create a regular expression that matches any string as long
 760         # as ML_POPDIR.
 761         popdir_rx=`echo "${ML_POPDIR}" | sed 's,.,.,g'`
 762         CC_=
 763         for arg in ${CC}; do
 764           case $arg in
 765           -[BIL]"${ML_POPDIR}"/*)
 766             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"`' ' ;;
 767           "${ML_POPDIR}"/*)
 768             CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 769           *)
 770             CC_="${CC_}${arg} " ;;
 771           esac
 772         done
 773
 774         CXX_=
 775         for arg in ${CXX}; do
 776           case $arg in
 777           -[BIL]"${ML_POPDIR}"/*)
 778             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"`' ' ;;
 779           "${ML_POPDIR}"/*)
 780             CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 781           *)
 782             CXX_="${CXX_}${arg} " ;;
 783           esac
 784         done
 785
 786         F77_=
 787         for arg in ${F77}; do
 788           case $arg in
 789           -[BIL]"${ML_POPDIR}"/*)
 790             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"`' ' ;;
 791           "${ML_POPDIR}"/*)
 792             F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 793           *)
 794             F77_="${F77_}${arg} " ;;
 795           esac
 796         done
 797
 798         GCJ_=
 799         for arg in ${GCJ}; do
 800           case $arg in
 801           -[BIL]"${ML_POPDIR}"/*)
 802             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"`' ' ;;
 803           "${ML_POPDIR}"/*)
 804             GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 805           *)
 806             GCJ_="${GCJ_}${arg} " ;;
 807           esac
 808         done
 809
 810         GFORTRAN_=
 811         for arg in ${GFORTRAN}; do
 812           case $arg in
 813           -[BIL]"${ML_POPDIR}"/*)
 814             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"`' ' ;;
 815           "${ML_POPDIR}"/*)
 816             GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 817           *)
 818             GFORTRAN_="${GFORTRAN_}${arg} " ;;
 819           esac
 820         done
 821
 822         GOC_=
 823         for arg in ${GOC}; do
 824           case $arg in
 825           -[BIL]"${ML_POPDIR}"/*)
 826             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"`' ' ;;
 827           "${ML_POPDIR}"/*)
 828             GOC_="${GOC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 829           *)
 830             GOC_="${GOC_}${arg} " ;;
 831           esac
 832         done
 833
 834         if test "x${LD_LIBRARY_PATH+set}" = xset; then
 835           LD_LIBRARY_PATH_=
 836           for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
 837             case "$arg" in
 838             "${ML_POPDIR}"/*)
 839               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 840               ;;
 841             esac
 842             if test "x$LD_LIBRARY_PATH_" != x; then
 843               LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
 844             else
 845               LD_LIBRARY_PATH_=$arg
 846             fi
 847           done
 848           ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
 849         fi
 850
 851         if test "x${SHLIB_PATH+set}" = xset; then
 852           SHLIB_PATH_=
 853           for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
 854             case "$arg" in
 855             "${ML_POPDIR}"/*)
 856               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 857               ;;
 858             esac
 859             if test "x$SHLIB_PATH_" != x; then
 860               SHLIB_PATH_=$SHLIB_PATH_:$arg
 861             else
 862               SHLIB_PATH_=$arg
 863             fi
 864           done
 865           ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
 866         fi
 867     fi
 868
 869     if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
 870         --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
 871         "${ac_configure_args}" ${ml_config_env} ${ml_srcdiroption} ; then
 872       true
 873     else
 874       exit 1
 875     fi
 876
 877     cd "${ML_POPDIR}"
 878
 879   done
 880
 881   cd "${ml_origdir}"
 882 fi
 883
 884 fi # ${ml_toplevel_p} = yes
 885 fi # ${enable_multilib} = yes