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