config-ml.in

   1 # Configure fragment invoked in the post-target section for subdirs
   2 # wanting multilib support.
   3 #
   4 # It is advisable to support a few --enable/--disable options to let the
   5 # user select which libraries s/he really wants.
   6 #
   7 # Subdirectories wishing to use multilib should put the following lines
   8 # in the "post-target" section of configure.in.
   9 #
  10 # if [ "${srcdir}" = "." ] ; then
  11 #   if [ "${with_target_subdir}" != "." ] ; then
  12 #     . ${with_multisrctop}../../config-ml.in
  13 #   else
  14 #     . ${with_multisrctop}../config-ml.in
  15 #   fi
  16 # else
  17 #   . ${srcdir}/../config-ml.in
  18 # fi
  19 #
  20 # See librx/configure.in in the libg++ distribution for an example of how
  21 # to handle autoconf'd libraries.
  22 #
  23 # Things are complicated because 6 separate cases must be handled:
  24 # 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
  25 #
  26 # srcdir=. is special.  It must handle make programs that don't handle VPATH.
  27 # To implement this, a symlink tree is built for each library and for each
  28 # multilib subdir.
  29 #
  30 # The build tree is layed out as
  31 #
  32 # ./
  33 #   libg++
  34 #   newlib
  35 #   m68020/
  36 #          libg++
  37 #          newlib
  38 #          m68881/
  39 #                 libg++
  40 #                 newlib
  41 #
  42 # The nice feature about this arrangement is that inter-library references
  43 # in the build tree work without having to care where you are.  Note that
  44 # inter-library references also work in the source tree because symlink trees
  45 # are built when srcdir=.
  46 #
  47 # Unfortunately, trying to access the libraries in the build tree requires
  48 # the user to manually choose which library to use as GCC won't be able to
  49 # find the right one.  This is viewed as the lesser of two evils.
  50 #
  51 # Configure variables:
  52 # ${with_target_subdir} = "." for native, or ${target_alias} for cross.
  53 # Set by top level Makefile.
  54 # ${with_multisrctop} = how many levels of multilibs there are in the source
  55 # tree.  It exists to handle the case of configuring in the source tree:
  56 # ${srcdir} is not constant.
  57 # ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
  58 #
  59 # Makefile variables:
  60 # MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
  61 # (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
  62 # MULTIBUILDTOP = number of multilib levels in build tree
  63 # MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
  64 # (only defined in each library's main Makefile).
  65 # MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
  66 # (only defined in each multilib subdir).
  67
  68 # FIXME: Multilib is currently disabled by default for everything other than
  69 # newlib.  It is up to each target to turn on multilib support for the other
  70 # libraries as desired.
  71
  72 # We have to handle being invoked by both Cygnus configure and Autoconf.
  73 #
  74 # Cygnus configure incoming variables:
  75 # srcdir, subdir, host, arguments
  76 #
  77 # Autoconf incoming variables:
  78 # srcdir, host, ac_configure_args
  79 #
  80 # We *could* figure srcdir and host out, but we'd have to do work that
  81 # our caller has already done to figure them out and requiring these two
  82 # seems reasonable.
  83 # Note that `host' in this case is GCC's `target'.  Target libraries are
  84 # configured for a particular host.
  85
  86 if [ -n "${ac_configure_args}" ]; then
  87   Makefile=${ac_file-Makefile}
  88   ml_config_shell=${CONFIG_SHELL-/bin/sh}
  89   ml_arguments="${ac_configure_args}"
  90   ml_realsrcdir=${srcdir}
  91 else
  92   Makefile=${Makefile-Makefile}
  93   ml_config_shell=${config_shell-/bin/sh}
  94   ml_arguments="${arguments}"
  95   if [ -n "${subdir}" -a "${subdir}" != "." ] ; then
  96     ml_realsrcdir=${srcdir}/${subdir}
  97   else
  98     ml_realsrcdir=${srcdir}
  99   fi
 100 fi
 101
 102 # Scan all the arguments and set all the ones we need.
 103
 104 ml_verbose=--verbose
 105 for option in ${ml_arguments}
 106 do
 107   case $option in
 108   --*) ;;
 109   -*) option=-$option ;;
 110   esac
 111
 112   case $option in
 113   --*=*)
 114         optarg=`echo $option | sed -e 's/^[^=]*=//'`
 115         ;;
 116   esac
 117
 118   case $option in
 119   --disable-*)
 120         enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 121         eval $enableopt=no
 122         ;;
 123   --enable-*)
 124         case "$option" in
 125         *=*)    ;;
 126         *)      optarg=yes ;;
 127         esac
 128         enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 129         eval $enableopt="$optarg"
 130         ;;
 131   --norecursion | --no*)
 132         ml_norecursion=yes
 133         ;;
 134   --silent | --sil* | --quiet | --q*)
 135         ml_verbose=--silent
 136         ;;
 137   --verbose | --v | --verb*)
 138         ml_verbose=--verbose
 139         ;;
 140   --with-*)
 141         case "$option" in
 142         *=*)    ;;
 143         *)      optarg=yes ;;
 144         esac
 145         withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 146         eval $withopt="$optarg"
 147         ;;
 148   --without-*)
 149         withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 150         eval $withopt=no
 151         ;;
 152   esac
 153 done
 154
 155 # Only do this if --enable-multilib.
 156 if [ "${enable_multilib}" = yes ]; then
 157
 158 # Compute whether this is the library's top level directory
 159 # (ie: not a multilib subdirectory, and not a subdirectory like libg++/src).
 160 # ${with_multisubdir} tells us we're in the right branch, but we could be
 161 # in a subdir of that.
 162 # ??? The previous version could void this test by separating the process into
 163 # two files: one that only the library's toplevel configure.in ran (to
 164 # configure the multilib subdirs), and another that all configure.in's ran to
 165 # update the Makefile.  It seemed reasonable to collapse all multilib support
 166 # into one file, but it does leave us with having to perform this test.
 167 ml_toplevel_p=no
 168 if [ -z "${with_multisubdir}" ]; then
 169   if [ "${srcdir}" = "." ]; then
 170     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 171     # ${with_target_subdir} = "." for native, otherwise target alias.
 172     if [ "${with_target_subdir}" = "." ]; then
 173       if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 174         ml_toplevel_p=yes
 175       fi
 176     else
 177       if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
 178         ml_toplevel_p=yes
 179       fi
 180     fi
 181   else
 182     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 183     if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 184       ml_toplevel_p=yes
 185     fi
 186   fi
 187 fi
 188
 189 # If this is the library's top level directory, set multidirs to the
 190 # multilib subdirs to support.  This lives at the top because we need
 191 # `multidirs' set right away.
 192
 193 if [ "${ml_toplevel_p}" = yes ]; then
 194
 195 multidirs=
 196 for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 197   dir=`echo $i | sed -e 's/;.*$//'`
 198   if [ "${dir}" = "." ]; then
 199     true
 200   else
 201     if [ -z "${multidirs}" ]; then
 202       multidirs="${dir}"
 203     else
 204       multidirs="${multidirs} ${dir}"
 205     fi
 206   fi
 207 done
 208
 209 # Target libraries are configured for the host they run on, so we check
 210 # $host here, not $target.
 211
 212 case "${host}" in
 213 arc-*-elf*)
 214         if [ x$enable_biendian != xyes ]
 215         then
 216           old_multidirs=${multidirs}
 217           multidirs=""
 218           for x in ${old_multidirs}; do
 219             case "${x}" in
 220               *be*) : ;;
 221               *) multidirs="${multidirs} ${x}" ;;
 222             esac
 223           done
 224         fi
 225         ;;
 226 arm-*-*)
 227         if [ x"$enable_fpu" = xno ]
 228         then
 229           old_multidirs=${multidirs}
 230           multidirs=""
 231           for x in ${old_multidirs}; do
 232             case "${x}" in
 233               *fpu*) : ;;
 234               *) multidirs="${multidirs} ${x}" ;;
 235             esac
 236           done
 237         fi
 238         if [ x"$enable_26bit" = xno ]
 239         then
 240           old_multidirs=${multidirs}
 241           multidirs=""
 242           for x in ${old_multidirs}; do
 243             case "${x}" in
 244               *26bit*) : ;;
 245               *) multidirs="${multidirs} ${x}" ;;
 246             esac
 247           done
 248         fi
 249         if [ x"$enable_underscore" = xno ]
 250         then
 251           old_multidirs=${multidirs}
 252           multidirs=""
 253           for x in ${old_multidirs}; do
 254             case "${x}" in
 255               *under*) : ;;
 256               *) multidirs="${multidirs} ${x}" ;;
 257             esac
 258           done
 259         fi
 260         if [ x"$enable_interwork" = xno ]
 261         then
 262           old_multidirs=${multidirs}
 263           multidirs=""
 264           for x in ${old_multidirs}; do
 265             case "${x}" in
 266               *interwork*) : ;;
 267               *) multidirs="${multidirs} ${x}" ;;
 268             esac
 269           done
 270         fi
 271         if [ x$enable_biendian = xno ]
 272         then
 273           old_multidirs="${multidirs}"
 274           multidirs=""
 275           for x in ${old_multidirs}; do
 276             case "$x" in
 277               *le* ) : ;;
 278               *be* ) : ;;
 279               *) multidirs="${multidirs} ${x}" ;;
 280             esac
 281           done
 282         fi
 283         ;;
 284 m68*-*-*)
 285         if [ x$enable_softfloat = xno ]
 286         then
 287           old_multidirs="${multidirs}"
 288           multidirs=""
 289           for x in ${old_multidirs}; do
 290             case "$x" in
 291               *soft-float* ) : ;;
 292               *) multidirs="${multidirs} ${x}" ;;
 293             esac
 294           done
 295         fi
 296         if [ x$enable_m68881 = xno ]
 297         then
 298           old_multidirs="${multidirs}"
 299           multidirs=""
 300           for x in ${old_multidirs}; do
 301             case "$x" in
 302               *m68881* ) : ;;
 303               *) multidirs="${multidirs} ${x}" ;;
 304             esac
 305           done
 306         fi
 307         if [ x$enable_m68000 = xno ]
 308         then
 309           old_multidirs="${multidirs}"
 310           multidirs=""
 311           for x in ${old_multidirs}; do
 312             case "$x" in
 313               *m68000* ) : ;;
 314               *) multidirs="${multidirs} ${x}" ;;
 315             esac
 316           done
 317         fi
 318         if [ x$enable_m68020 = xno ]
 319         then
 320           old_multidirs="${multidirs}"
 321           multidirs=""
 322           for x in ${old_multidirs}; do
 323             case "$x" in
 324               *m68020* ) : ;;
 325               *) multidirs="${multidirs} ${x}" ;;
 326             esac
 327           done
 328         fi
 329         ;;
 330 mips*-*-*)
 331         if [ x$enable_single_float = xno ]
 332         then
 333           old_multidirs="${multidirs}"
 334           multidirs=""
 335           for x in ${old_multidirs}; do
 336             case "$x" in
 337               *single* ) : ;;
 338               *) multidirs="${multidirs} ${x}" ;;
 339             esac
 340           done
 341         fi
 342         if [ x$enable_biendian = xno ]
 343         then
 344           old_multidirs="${multidirs}"
 345           multidirs=""
 346           for x in ${old_multidirs}; do
 347             case "$x" in
 348               *el* ) : ;;
 349               *eb* ) : ;;
 350               *) multidirs="${multidirs} ${x}" ;;
 351             esac
 352           done
 353         fi
 354         if [ x$enable_softfloat = xno ]
 355         then
 356           old_multidirs="${multidirs}"
 357           multidirs=""
 358           for x in ${old_multidirs}; do
 359             case "$x" in
 360               *soft-float* ) : ;;
 361               *) multidirs="${multidirs} ${x}" ;;
 362             esac
 363           done
 364         fi
 365         ;;
 366 powerpc*-*-* | rs6000*-*-*)
 367         if [ x$enable_softfloat = xno ]
 368         then
 369           old_multidirs="${multidirs}"
 370           multidirs=""
 371           for x in ${old_multidirs}; do
 372             case "$x" in
 373               *soft-float* ) : ;;
 374               *) multidirs="${multidirs} ${x}" ;;
 375             esac
 376           done
 377         fi
 378         if [ x$enable_powercpu = xno ]
 379         then
 380           old_multidirs="${multidirs}"
 381           multidirs=""
 382           for x in ${old_multidirs}; do
 383             case "$x" in
 384               power | */power | */power/* ) : ;;
 385               *) multidirs="${multidirs} ${x}" ;;
 386             esac
 387           done
 388         fi
 389         if [ x$enable_powerpccpu = xno ]
 390         then
 391           old_multidirs="${multidirs}"
 392           multidirs=""
 393           for x in ${old_multidirs}; do
 394             case "$x" in
 395               *powerpc* ) : ;;
 396               *) multidirs="${multidirs} ${x}" ;;
 397             esac
 398           done
 399         fi
 400         if [ x$enable_powerpcos = xno ]
 401         then
 402           old_multidirs="${multidirs}"
 403           multidirs=""
 404           for x in ${old_multidirs}; do
 405             case "$x" in
 406               *mcall-linux* | *mcall-solaris* ) : ;;
 407               *) multidirs="${multidirs} ${x}" ;;
 408             esac
 409           done
 410         fi
 411         if [ x$enable_biendian = xno ]
 412         then
 413           old_multidirs="${multidirs}"
 414           multidirs=""
 415           for x in ${old_multidirs}; do
 416             case "$x" in
 417               *mlittle* | *mbig* ) : ;;
 418               *) multidirs="${multidirs} ${x}" ;;
 419             esac
 420           done
 421         fi
 422         if [ x$enable_sysv = xno ]
 423         then
 424           old_multidirs="${multidirs}"
 425           multidirs=""
 426           for x in ${old_multidirs}; do
 427             case "$x" in
 428               *mcall-sysv* ) : ;;
 429               *) multidirs="${multidirs} ${x}" ;;
 430             esac
 431           done
 432         fi
 433         if [ x$enable_aix = xno ]
 434         then
 435           old_multidirs="${multidirs}"
 436           multidirs=""
 437           for x in ${old_multidirs}; do
 438             case "$x" in
 439               *mcall-aix* ) : ;;
 440               *) multidirs="${multidirs} ${x}" ;;
 441             esac
 442           done
 443         fi
 444         ;;
 445 esac
 446
 447 # Remove extraneous blanks from multidirs.
 448 # Tests like `if [ -n "$multidirs" ]' require it.
 449 multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
 450
 451 # Add code to library's top level makefile to handle building the multilib
 452 # subdirs.
 453
 454 cat > Multi.tem <<\EOF
 455
 456 # FIXME: There should be an @-sign in front of the `if'.
 457 # Leave out until this is tested a bit more.
 458 multi-do:
 459         if [ -z "$(MULTIDIRS)" ]; then \
 460           true; \
 461         else \
 462           rootpre=`pwd`/; export rootpre; \
 463           srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
 464           lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 465           compiler="$(CC)"; \
 466           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
 467             dir=`echo $$i | sed -e 's/;.*$$//'`; \
 468             if [ "$${dir}" = "." ]; then \
 469               true; \
 470             else \
 471               if [ -d ../$${dir}/$${lib} ]; then \
 472                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
 473                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
 474                                 CFLAGS="$(CFLAGS) $${flags}" \
 475                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
 476                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
 477                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
 478                                 LDFLAGS="$(LDFLAGS) $${flags}" \
 479                                 $(DO)); then \
 480                   true; \
 481                 else \
 482                   exit 1; \
 483                 fi; \
 484               else true; \
 485               fi; \
 486             fi; \
 487           done; \
 488         fi
 489
 490 # FIXME: There should be an @-sign in front of the `if'.
 491 # Leave out until this is tested a bit more.
 492 multi-clean:
 493         if [ -z "$(MULTIDIRS)" ]; then \
 494           true; \
 495         else \
 496           lib=`pwd | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
 497           for dir in Makefile $(MULTIDIRS); do \
 498             if [ -f ../$${dir}/$${lib}/Makefile ]; then \
 499               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
 500               then true; \
 501               else exit 1; \
 502               fi; \
 503             else true; \
 504             fi; \
 505           done; \
 506         fi
 507 EOF
 508
 509 cat ${Makefile} Multi.tem > Makefile.tem
 510 rm -f ${Makefile} Multi.tem
 511 mv Makefile.tem ${Makefile}
 512
 513 fi # ${ml_toplevel_p} = yes
 514
 515 if [ "${ml_verbose}" = --verbose ]; then
 516   echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
 517   if [ "${ml_toplevel_p}" = yes ]; then
 518     echo "multidirs=${multidirs}"
 519   fi
 520   echo "with_multisubdir=${with_multisubdir}"
 521 fi
 522
 523 if [ "${srcdir}" = "." ]; then
 524   if [ "${with_target_subdir}" != "." ]; then
 525     ml_srcdotdot="../"
 526   else
 527     ml_srcdotdot=""
 528   fi
 529 else
 530   ml_srcdotdot=""
 531 fi
 532
 533 if [ -z "${with_multisubdir}" ]; then
 534   ml_subdir=
 535   ml_builddotdot=
 536   : # ml_srcdotdot= # already set
 537 else
 538   ml_subdir="/${with_multisubdir}"
 539   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
 540   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
 541   if [ "$srcdir" = "." ]; then
 542     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
 543   else
 544     : # ml_srcdotdot= # already set
 545   fi
 546 fi
 547
 548 if [ "${ml_toplevel_p}" = yes ]; then
 549   ml_do='$(MAKE)'
 550   ml_clean='$(MAKE)'
 551 else
 552   ml_do=true
 553   ml_clean=true
 554 fi
 555
 556 # TOP is used by newlib and should not be used elsewhere for this purpose.
 557 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
 558 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
 559 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
 560 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
 561 # of course.
 562 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
 563 # and lists the subdirectories to recurse into.
 564 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
 565 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
 566 # a leading '/'.
 567 # MULTIDO is used for targets like all, install, and check where
 568 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
 569 # MULTICLEAN is used for the *clean targets.
 570 #
 571 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
 572 # currently kept separate because we don't want the *clean targets to require
 573 # the existence of the compiler (which MULTIDO currently requires) and
 574 # therefore we'd have to record the directory options as well as names
 575 # (currently we just record the names and use --print-multi-lib to get the
 576 # options).
 577
 578 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
 579     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
 580     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
 581     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
 582     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
 583     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
 584     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
 585         ${Makefile} > Makefile.tem
 586 rm -f ${Makefile}
 587 mv Makefile.tem ${Makefile}
 588
 589 # If this is the library's top level, configure each multilib subdir.
 590 # This is done at the end because this is the loop that runs configure
 591 # in each multilib subdir and it seemed reasonable to finish updating the
 592 # Makefile before going on to configure the subdirs.
 593
 594 if [ "${ml_toplevel_p}" = yes ]; then
 595
 596 # We must freshly configure each subdirectory.  This bit of code is
 597 # actually partially stolen from the main configure script.  FIXME.
 598
 599 if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
 600
 601   if [ "${ml_verbose}" = --verbose ]; then
 602     echo "Running configure in multilib subdirs ${multidirs}"
 603     echo "pwd: `pwd`"
 604   fi
 605
 606   ml_origdir=`pwd`
 607   ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
 608   # cd to top-level-build-dir/${with_target_subdir}
 609   cd ..
 610
 611   for ml_dir in ${multidirs}; do
 612
 613     if [ "${ml_verbose}" = --verbose ]; then
 614       echo "Running configure in multilib subdir ${ml_dir}"
 615       echo "pwd: `pwd`"
 616     fi
 617
 618     if [ -d ${ml_dir} ]; then true; else mkdir ${ml_dir}; fi
 619     if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
 620
 621     # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
 622     dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 623
 624     case ${srcdir} in
 625     ".")
 626       echo Building symlink tree in `pwd`/${ml_dir}/${ml_libdir}
 627       if [ "${with_target_subdir}" != "." ]; then
 628         ml_unsubdir="../"
 629       else
 630         ml_unsubdir=""
 631       fi
 632       (cd ${ml_dir}/${ml_libdir};
 633        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
 634       if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
 635         if [ x"${MAKE}" = x ]; then
 636           (cd ${ml_dir}/${ml_libdir}; make distclean)
 637         else
 638           (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
 639         fi
 640       fi
 641       ml_newsrcdir="."
 642       ml_srcdiroption=
 643       multisrctop=${dotdot}
 644       ;;
 645     *)
 646       case "${srcdir}" in
 647       /*) # absolute path
 648         ml_newsrcdir=${srcdir}
 649         ;;
 650       *) # otherwise relative
 651         ml_newsrcdir=${dotdot}${srcdir}
 652         ;;
 653       esac
 654       ml_srcdiroption="-srcdir=${ml_newsrcdir}"
 655       multisrctop=
 656       ;;
 657     esac
 658
 659     case "${progname}" in
 660     /*)     ml_recprog=${progname} ;;
 661     *)      ml_recprog=${dotdot}${progname} ;;
 662     esac
 663
 664     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
 665     ML_POPDIR=`pwd`
 666     cd ${ml_dir}/${ml_libdir}
 667
 668     if [ -f ${ml_newsrcdir}/configure ]; then
 669       ml_recprog=${ml_newsrcdir}/configure
 670     fi
 671     if eval ${ml_config_shell} ${ml_recprog} \
 672         --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
 673         ${ml_arguments} ${ml_srcdiroption} ; then
 674       true
 675     else
 676       exit 1
 677     fi
 678
 679     cd ${ML_POPDIR}
 680
 681   done
 682
 683   cd ${ml_origdir}
 684 fi
 685
 686 fi # ${ml_toplevel_p} = yes
 687 fi # ${enable_multilib} = yes