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 #
  21 # Things are complicated because 6 separate cases must be handled:
  22 # 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
  23 #
  24 # srcdir=. is special.  It must handle make programs that don't handle VPATH.
  25 # To implement this, a symlink tree is built for each library and for each
  26 # multilib subdir.
  27 #
  28 # The build tree is layed out as
  29 #
  30 # ./
  31 #   newlib
  32 #   m68020/
  33 #          newlib
  34 #          m68881/
  35 #                 newlib
  36 #
  37 # The nice feature about this arrangement is that inter-library references
  38 # in the build tree work without having to care where you are.  Note that
  39 # inter-library references also work in the source tree because symlink trees
  40 # are built when srcdir=.
  41 #
  42 # Unfortunately, trying to access the libraries in the build tree requires
  43 # the user to manually choose which library to use as GCC won't be able to
  44 # find the right one.  This is viewed as the lesser of two evils.
  45 #
  46 # Configure variables:
  47 # ${with_target_subdir} = "." for native, or ${target_alias} for cross.
  48 # Set by top level Makefile.
  49 # ${with_multisrctop} = how many levels of multilibs there are in the source
  50 # tree.  It exists to handle the case of configuring in the source tree:
  51 # ${srcdir} is not constant.
  52 # ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
  53 #
  54 # Makefile variables:
  55 # MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
  56 # (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
  57 # MULTIBUILDTOP = number of multilib levels in build tree
  58 # MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
  59 # (only defined in each library's main Makefile).
  60 # MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
  61 # (only defined in each multilib subdir).
  62
  63 # FIXME: Multilib is currently disabled by default for everything other than
  64 # newlib.  It is up to each target to turn on multilib support for the other
  65 # libraries as desired.
  66
  67 # We have to handle being invoked by both Cygnus configure and Autoconf.
  68 #
  69 # Cygnus configure incoming variables:
  70 # srcdir, subdir, host, arguments
  71 #
  72 # Autoconf incoming variables:
  73 # srcdir, host, ac_configure_args
  74 #
  75 # We *could* figure srcdir and host out, but we'd have to do work that
  76 # our caller has already done to figure them out and requiring these two
  77 # seems reasonable.
  78 # Note that `host' in this case is GCC's `target'.  Target libraries are
  79 # configured for a particular host.
  80
  81 if [ -n "${ac_configure_args}" ]; then
  82   Makefile=${ac_file-Makefile}
  83   ml_config_shell=${CONFIG_SHELL-/bin/sh}
  84   ml_arguments="${ac_configure_args}"
  85   ml_realsrcdir=${srcdir}
  86 else
  87   Makefile=${Makefile-Makefile}
  88   ml_config_shell=${config_shell-/bin/sh}
  89   ml_arguments="${arguments}"
  90   if [ -n "${subdir}" -a "${subdir}" != "." ] ; then
  91     ml_realsrcdir=${srcdir}/${subdir}
  92   else
  93     ml_realsrcdir=${srcdir}
  94   fi
  95 fi
  96
  97 # Scan all the arguments and set all the ones we need.
  98
  99 ml_verbose=--verbose
 100 for option in ${ml_arguments}
 101 do
 102   case $option in
 103   --*) ;;
 104   -*) option=-$option ;;
 105   esac
 106
 107   case $option in
 108   --*=*)
 109         optarg=`echo $option | sed -e 's/^[^=]*=//'`
 110         ;;
 111   esac
 112
 113   case $option in
 114   --disable-*)
 115         enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 116         eval $enableopt=no
 117         ;;
 118   --enable-*)
 119         case "$option" in
 120         *=*)    ;;
 121         *)      optarg=yes ;;
 122         esac
 123         enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 124         eval $enableopt="$optarg"
 125         ;;
 126   --norecursion | --no*)
 127         ml_norecursion=yes
 128         ;;
 129   --silent | --sil* | --quiet | --q*)
 130         ml_verbose=--silent
 131         ;;
 132   --verbose | --v | --verb*)
 133         ml_verbose=--verbose
 134         ;;
 135   --with-*)
 136         case "$option" in
 137         *=*)    ;;
 138         *)      optarg=yes ;;
 139         esac
 140         withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 141         eval $withopt="$optarg"
 142         ;;
 143   --without-*)
 144         withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 145         eval $withopt=no
 146         ;;
 147   esac
 148 done
 149
 150 # Only do this if --enable-multilib.
 151 if [ "${enable_multilib}" = yes ]; then
 152
 153 # Compute whether this is the library's top level directory
 154 # (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
 155 # ${with_multisubdir} tells us we're in the right branch, but we could be
 156 # in a subdir of that.
 157 # ??? The previous version could void this test by separating the process into
 158 # two files: one that only the library's toplevel configure.in ran (to
 159 # configure the multilib subdirs), and another that all configure.in's ran to
 160 # update the Makefile.  It seemed reasonable to collapse all multilib support
 161 # into one file, but it does leave us with having to perform this test.
 162 ml_toplevel_p=no
 163 if [ -z "${with_multisubdir}" ]; then
 164   if [ "${srcdir}" = "." ]; then
 165     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 166     # ${with_target_subdir} = "." for native, otherwise target alias.
 167     if [ "${with_target_subdir}" = "." ]; then
 168       if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 169         ml_toplevel_p=yes
 170       fi
 171     else
 172       if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
 173         ml_toplevel_p=yes
 174       fi
 175     fi
 176   else
 177     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
 178     if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
 179       ml_toplevel_p=yes
 180     fi
 181   fi
 182 fi
 183
 184 # If this is the library's top level directory, set multidirs to the
 185 # multilib subdirs to support.  This lives at the top because we need
 186 # `multidirs' set right away.
 187
 188 if [ "${ml_toplevel_p}" = yes ]; then
 189
 190 multidirs=
 191 for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 192   dir=`echo $i | sed -e 's/;.*$//'`
 193   if [ "${dir}" = "." ]; then
 194     true
 195   else
 196     if [ -z "${multidirs}" ]; then
 197       multidirs="${dir}"
 198     else
 199       multidirs="${multidirs} ${dir}"
 200     fi
 201   fi
 202 done
 203
 204 # Target libraries are configured for the host they run on, so we check
 205 # $host here, not $target.
 206
 207 case "${host}" in
 208 arc-*-elf*)
 209         if [ x$enable_biendian != xyes ]
 210         then
 211           old_multidirs=${multidirs}
 212           multidirs=""
 213           for x in ${old_multidirs}; do
 214             case "${x}" in
 215               *be*) : ;;
 216               *) multidirs="${multidirs} ${x}" ;;
 217             esac
 218           done
 219         fi
 220         ;;
 221 arm-*-*)
 222         if [ x"$enable_fpu" = xno ]
 223         then
 224           old_multidirs=${multidirs}
 225           multidirs=""
 226           for x in ${old_multidirs}; do
 227             case "${x}" in
 228               *fpu*) : ;;
 229               *) multidirs="${multidirs} ${x}" ;;
 230             esac
 231           done
 232         fi
 233         if [ x"$enable_26bit" = xno ]
 234         then
 235           old_multidirs=${multidirs}
 236           multidirs=""
 237           for x in ${old_multidirs}; do
 238             case "${x}" in
 239               *26bit*) : ;;
 240               *) multidirs="${multidirs} ${x}" ;;
 241             esac
 242           done
 243         fi
 244         if [ x"$enable_underscore" = xno ]
 245         then
 246           old_multidirs=${multidirs}
 247           multidirs=""
 248           for x in ${old_multidirs}; do
 249             case "${x}" in
 250               *under*) : ;;
 251               *) multidirs="${multidirs} ${x}" ;;
 252             esac
 253           done
 254         fi
 255         if [ x"$enable_interwork" = xno ]
 256         then
 257           old_multidirs=${multidirs}
 258           multidirs=""
 259           for x in ${old_multidirs}; do
 260             case "${x}" in
 261               *interwork*) : ;;
 262               *) multidirs="${multidirs} ${x}" ;;
 263             esac
 264           done
 265         fi
 266         if [ x$enable_biendian = xno ]
 267         then
 268           old_multidirs="${multidirs}"
 269           multidirs=""
 270           for x in ${old_multidirs}; do
 271             case "$x" in
 272               *le* ) : ;;
 273               *be* ) : ;;
 274               *) multidirs="${multidirs} ${x}" ;;
 275             esac
 276           done
 277         fi
 278         if [ x"$enable_nofmult" = xno ]
 279         then
 280           old_multidirs="${multidirs}"
 281           multidirs=""
 282           for x in ${old_multidirs}; do
 283             case "$x" in
 284               *nofmult* ) : ;;
 285               *) multidirs="${multidirs} ${x}" ;;
 286             esac
 287           done
 288         fi
 289         ;;
 290 m68*-*-*)
 291         if [ x$enable_softfloat = xno ]
 292         then
 293           old_multidirs="${multidirs}"
 294           multidirs=""
 295           for x in ${old_multidirs}; do
 296             case "$x" in
 297               *soft-float* ) : ;;
 298               *) multidirs="${multidirs} ${x}" ;;
 299             esac
 300           done
 301         fi
 302         if [ x$enable_m68881 = xno ]
 303         then
 304           old_multidirs="${multidirs}"
 305           multidirs=""
 306           for x in ${old_multidirs}; do
 307             case "$x" in
 308               *m68881* ) : ;;
 309               *) multidirs="${multidirs} ${x}" ;;
 310             esac
 311           done
 312         fi
 313         if [ x$enable_m68000 = xno ]
 314         then
 315           old_multidirs="${multidirs}"
 316           multidirs=""
 317           for x in ${old_multidirs}; do
 318             case "$x" in
 319               *m68000* ) : ;;
 320               *) multidirs="${multidirs} ${x}" ;;
 321             esac
 322           done
 323         fi
 324         if [ x$enable_m68020 = xno ]
 325         then
 326           old_multidirs="${multidirs}"
 327           multidirs=""
 328           for x in ${old_multidirs}; do
 329             case "$x" in
 330               *m68020* ) : ;;
 331               *) multidirs="${multidirs} ${x}" ;;
 332             esac
 333           done
 334         fi
 335         ;;
 336 mips*-*-*)
 337         if [ x$enable_single_float = xno ]
 338         then
 339           old_multidirs="${multidirs}"
 340           multidirs=""
 341           for x in ${old_multidirs}; do
 342             case "$x" in
 343               *single* ) : ;;
 344               *) multidirs="${multidirs} ${x}" ;;
 345             esac
 346           done
 347         fi
 348         if [ x$enable_biendian = xno ]
 349         then
 350           old_multidirs="${multidirs}"
 351           multidirs=""
 352           for x in ${old_multidirs}; do
 353             case "$x" in
 354               *el* ) : ;;
 355               *eb* ) : ;;
 356               *) multidirs="${multidirs} ${x}" ;;
 357             esac
 358           done
 359         fi
 360         if [ x$enable_softfloat = xno ]
 361         then
 362           old_multidirs="${multidirs}"
 363           multidirs=""
 364           for x in ${old_multidirs}; do
 365             case "$x" in
 366               *soft-float* ) : ;;
 367               *) multidirs="${multidirs} ${x}" ;;
 368             esac
 369           done
 370         fi
 371         case " $multidirs " in
 372         *" mabi=64 "*)
 373           # We will not be able to create libraries with -mabi=64 if
 374           # we cannot even link a trivial program.  It usually
 375           # indicates the 64bit libraries are missing.
 376           if echo 'main() {}' > conftest.c &&
 377              ${CC-gcc} -mabi=64 conftest.c -o conftest; then
 378             :
 379           else
 380             echo Could not link program with -mabi=64, disabling it.
 381             old_multidirs="${multidirs}"
 382             multidirs=""
 383             for x in ${old_multidirs}; do
 384               case "$x" in
 385               *mabi=64* ) : ;;
 386               *) multidirs="${multidirs} ${x}" ;;
 387               esac
 388             done
 389           fi
 390           rm -f conftest.c conftest
 391           ;;
 392         esac
 393         ;;
 394 powerpc*-*-* | rs6000*-*-*)
 395         if [ x$enable_aix64 = xno ]
 396         then
 397           old_multidirs="${multidirs}"
 398           multidirs=""
 399           for x in ${old_multidirs}; do
 400             case "$x" in
 401               *ppc64* ) : ;;
 402               *) multidirs="${multidirs} ${x}" ;;
 403             esac
 404           done
 405         fi
 406         if [ x$enable_pthread = xno ]
 407         then
 408           old_multidirs="${multidirs}"
 409           multidirs=""
 410           for x in ${old_multidirs}; do
 411             case "$x" in
 412               *pthread* ) : ;;
 413               *) multidirs="${multidirs} ${x}" ;;
 414             esac
 415           done
 416         fi
 417         if [ x$enable_softfloat = xno ]
 418         then
 419           old_multidirs="${multidirs}"
 420           multidirs=""
 421           for x in ${old_multidirs}; do
 422             case "$x" in
 423               *soft-float* ) : ;;
 424               *) multidirs="${multidirs} ${x}" ;;
 425             esac
 426           done
 427         fi
 428         if [ x$enable_powercpu = xno ]
 429         then
 430           old_multidirs="${multidirs}"
 431           multidirs=""
 432           for x in ${old_multidirs}; do
 433             case "$x" in
 434               power | */power | */power/* ) : ;;
 435               *) multidirs="${multidirs} ${x}" ;;
 436             esac
 437           done
 438         fi
 439         if [ x$enable_powerpccpu = xno ]
 440         then
 441           old_multidirs="${multidirs}"
 442           multidirs=""
 443           for x in ${old_multidirs}; do
 444             case "$x" in
 445               *powerpc* ) : ;;
 446               *) multidirs="${multidirs} ${x}" ;;
 447             esac
 448           done
 449         fi
 450         if [ x$enable_powerpcos = xno ]
 451         then
 452           old_multidirs="${multidirs}"
 453           multidirs=""
 454           for x in ${old_multidirs}; do
 455             case "$x" in
 456               *mcall-linux* | *mcall-solaris* ) : ;;
 457               *) multidirs="${multidirs} ${x}" ;;
 458             esac
 459           done
 460         fi
 461         if [ x$enable_biendian = xno ]
 462         then
 463           old_multidirs="${multidirs}"
 464           multidirs=""
 465           for x in ${old_multidirs}; do
 466             case "$x" in
 467               *mlittle* | *mbig* ) : ;;
 468               *) multidirs="${multidirs} ${x}" ;;
 469             esac
 470           done
 471         fi
 472         if [ x$enable_sysv = xno ]
 473         then
 474           old_multidirs="${multidirs}"
 475           multidirs=""
 476           for x in ${old_multidirs}; do
 477             case "$x" in
 478               *mcall-sysv* ) : ;;
 479               *) multidirs="${multidirs} ${x}" ;;
 480             esac
 481           done
 482         fi
 483         if [ x$enable_aix = xno ]
 484         then
 485           old_multidirs="${multidirs}"
 486           multidirs=""
 487           for x in ${old_multidirs}; do
 488             case "$x" in
 489               *mcall-aix* ) : ;;
 490               *) multidirs="${multidirs} ${x}" ;;
 491             esac
 492           done
 493         fi
 494         ;;
 495 sparc*-*-*)
 496         case " $multidirs " in
 497         *" m64 "*)
 498           # We will not be able to create libraries with -m64 if
 499           # we cannot even link a trivial program.  It usually
 500           # indicates the 64bit libraries are missing.
 501           if echo 'main() {}' > conftest.c &&
 502              ${CC-gcc} -m64 conftest.c -o conftest; then
 503             :
 504           else
 505             echo Could not link program with -m64, disabling it.
 506             old_multidirs="${multidirs}"
 507             multidirs=""
 508             for x in ${old_multidirs}; do
 509               case "$x" in
 510               *m64* ) : ;;
 511               *) multidirs="${multidirs} ${x}" ;;
 512               esac
 513             done
 514           fi
 515           rm -f conftest.c conftest
 516           ;;
 517         esac
 518         ;;
 519 esac
 520
 521 # Remove extraneous blanks from multidirs.
 522 # Tests like `if [ -n "$multidirs" ]' require it.
 523 multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
 524
 525 # Add code to library's top level makefile to handle building the multilib
 526 # subdirs.
 527
 528 cat > Multi.tem <<\EOF
 529
 530 PWD=$${PWDCMD-pwd}
 531
 532 # FIXME: There should be an @-sign in front of the `if'.
 533 # Leave out until this is tested a bit more.
 534 multi-do:
 535         if [ -z "$(MULTIDIRS)" ]; then \
 536           true; \
 537         else \
 538           rootpre=`${PWD}`/; export rootpre; \
 539           srcrootpre=`cd $(srcdir); ${PWD}`/; export srcrootpre; \
 540           lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 541           compiler="$(CC)"; \
 542           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
 543             dir=`echo $$i | sed -e 's/;.*$$//'`; \
 544             if [ "$${dir}" = "." ]; then \
 545               true; \
 546             else \
 547               if [ -d ../$${dir}/$${lib} ]; then \
 548                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
 549                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
 550                                 CFLAGS="$(CFLAGS) $${flags}" \
 551                                 prefix="$(prefix)" \
 552                                 exec_prefix="$(exec_prefix)" \
 553                                 GCJFLAGS="$(GCJFLAGS) $${flags}" \
 554                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
 555                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
 556                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
 557                                 LDFLAGS="$(LDFLAGS) $${flags}" \
 558                                 DESTDIR="$(DESTDIR)" \
 559                                 $(DO)); then \
 560                   true; \
 561                 else \
 562                   exit 1; \
 563                 fi; \
 564               else true; \
 565               fi; \
 566             fi; \
 567           done; \
 568         fi
 569
 570 # FIXME: There should be an @-sign in front of the `if'.
 571 # Leave out until this is tested a bit more.
 572 multi-clean:
 573         if [ -z "$(MULTIDIRS)" ]; then \
 574           true; \
 575         else \
 576           lib=`${PWD} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
 577           for dir in Makefile $(MULTIDIRS); do \
 578             if [ -f ../$${dir}/$${lib}/Makefile ]; then \
 579               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
 580               then true; \
 581               else exit 1; \
 582               fi; \
 583             else true; \
 584             fi; \
 585           done; \
 586         fi
 587 EOF
 588
 589 cat ${Makefile} Multi.tem > Makefile.tem
 590 rm -f ${Makefile} Multi.tem
 591 mv Makefile.tem ${Makefile}
 592
 593 fi # ${ml_toplevel_p} = yes
 594
 595 if [ "${ml_verbose}" = --verbose ]; then
 596   echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
 597   if [ "${ml_toplevel_p}" = yes ]; then
 598     echo "multidirs=${multidirs}"
 599   fi
 600   echo "with_multisubdir=${with_multisubdir}"
 601 fi
 602
 603 if [ "${srcdir}" = "." ]; then
 604   if [ "${with_target_subdir}" != "." ]; then
 605     ml_srcdotdot="../"
 606   else
 607     ml_srcdotdot=""
 608   fi
 609 else
 610   ml_srcdotdot=""
 611 fi
 612
 613 if [ -z "${with_multisubdir}" ]; then
 614   ml_subdir=
 615   ml_builddotdot=
 616   : # ml_srcdotdot= # already set
 617 else
 618   ml_subdir="/${with_multisubdir}"
 619   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
 620   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
 621   if [ "$srcdir" = "." ]; then
 622     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
 623   else
 624     : # ml_srcdotdot= # already set
 625   fi
 626 fi
 627
 628 if [ "${ml_toplevel_p}" = yes ]; then
 629   ml_do='$(MAKE)'
 630   ml_clean='$(MAKE)'
 631 else
 632   ml_do=true
 633   ml_clean=true
 634 fi
 635
 636 # TOP is used by newlib and should not be used elsewhere for this purpose.
 637 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
 638 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
 639 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
 640 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
 641 # of course.
 642 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
 643 # and lists the subdirectories to recurse into.
 644 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
 645 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
 646 # a leading '/'.
 647 # MULTIDO is used for targets like all, install, and check where
 648 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
 649 # MULTICLEAN is used for the *clean targets.
 650 #
 651 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
 652 # currently kept separate because we don't want the *clean targets to require
 653 # the existence of the compiler (which MULTIDO currently requires) and
 654 # therefore we'd have to record the directory options as well as names
 655 # (currently we just record the names and use --print-multi-lib to get the
 656 # options).
 657
 658 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
 659     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
 660     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
 661     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
 662     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
 663     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
 664     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
 665         ${Makefile} > Makefile.tem
 666 rm -f ${Makefile}
 667 mv Makefile.tem ${Makefile}
 668
 669 # If this is the library's top level, configure each multilib subdir.
 670 # This is done at the end because this is the loop that runs configure
 671 # in each multilib subdir and it seemed reasonable to finish updating the
 672 # Makefile before going on to configure the subdirs.
 673
 674 if [ "${ml_toplevel_p}" = yes ]; then
 675
 676 # We must freshly configure each subdirectory.  This bit of code is
 677 # actually partially stolen from the main configure script.  FIXME.
 678
 679 if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
 680
 681   if [ "${ml_verbose}" = --verbose ]; then
 682     echo "Running configure in multilib subdirs ${multidirs}"
 683     echo "pwd: `${PWDCMD-pwd}`"
 684   fi
 685
 686   ml_origdir=`${PWDCMD-pwd}`
 687   ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
 688   # cd to top-level-build-dir/${with_target_subdir}
 689   cd ..
 690
 691   for ml_dir in ${multidirs}; do
 692
 693     if [ "${ml_verbose}" = --verbose ]; then
 694       echo "Running configure in multilib subdir ${ml_dir}"
 695       echo "pwd: `${PWDCMD-pwd}`"
 696     fi
 697
 698     if [ -d ${ml_dir} ]; then true; else
 699       # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
 700       pathcomp=""
 701       for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
 702         pathcomp="$pathcomp$d"
 703         case "$pathcomp" in
 704           -* ) pathcomp=./$pathcomp ;;
 705         esac
 706         if test ! -d "$pathcomp"; then
 707            echo "mkdir $pathcomp" 1>&2
 708            mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
 709         fi
 710         if test ! -d "$pathcomp"; then
 711            exit $lasterr
 712         fi
 713         pathcomp="$pathcomp/"
 714       done
 715     fi
 716     if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
 717
 718     # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
 719     dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 720
 721     case ${srcdir} in
 722     ".")
 723       echo Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}
 724       if [ "${with_target_subdir}" != "." ]; then
 725         ml_unsubdir="../"
 726       else
 727         ml_unsubdir=""
 728       fi
 729       (cd ${ml_dir}/${ml_libdir};
 730        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
 731       if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
 732         if [ x"${MAKE}" = x ]; then
 733           (cd ${ml_dir}/${ml_libdir}; make distclean)
 734         else
 735           (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
 736         fi
 737       fi
 738       ml_newsrcdir="."
 739       ml_srcdiroption=
 740       multisrctop=${dotdot}
 741       ;;
 742     *)
 743       case "${srcdir}" in
 744       /* | [A-Za-z]:[\\/]* ) # absolute path
 745         ml_newsrcdir=${srcdir}
 746         ;;
 747       *) # otherwise relative
 748         ml_newsrcdir=${dotdot}${srcdir}
 749         ;;
 750       esac
 751       ml_srcdiroption="-srcdir=${ml_newsrcdir}"
 752       multisrctop=
 753       ;;
 754     esac
 755
 756     case "${progname}" in
 757     /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
 758     *)      ml_recprog=${dotdot}${progname} ;;
 759     esac
 760
 761     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
 762     ML_POPDIR=`${PWDCMD-pwd}`
 763     cd ${ml_dir}/${ml_libdir}
 764
 765     if [ -f ${ml_newsrcdir}/configure ]; then
 766       ml_recprog="${ml_newsrcdir}/configure --cache-file=../config.cache"
 767     fi
 768
 769     # find compiler flag corresponding to ${ml_dir}
 770     for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
 771       dir=`echo $i | sed -e 's/;.*$//'`
 772       if [ "${dir}" = "${ml_dir}" ]; then
 773         flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
 774         break
 775       fi
 776     done
 777     ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" GCJ="${GCJ_}$flags"'
 778
 779     if [ "${with_target_subdir}" = "." ]; then
 780         CC_=$CC' '
 781         CXX_=$CXX' '
 782         GCJ_=$GCJ' '
 783     else
 784         # Create a regular expression that matches any string as long
 785         # as ML_POPDIR.
 786         popdir_rx=`echo ${ML_POPDIR} | sed 's,.,.,g'`
 787         CC_=
 788         for arg in ${CC}; do
 789           case $arg in
 790           -[BIL]"${ML_POPDIR}"/*)
 791             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"`' ' ;;
 792           "${ML_POPDIR}"/*)
 793             CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 794           *)
 795             CC_="${CC_}${arg} " ;;
 796           esac
 797         done
 798
 799         CXX_=
 800         for arg in ${CXX}; do
 801           case $arg in
 802           -[BIL]"${ML_POPDIR}"/*)
 803             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"`' ' ;;
 804           "${ML_POPDIR}"/*)
 805             CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 806           *)
 807             CXX_="${CXX_}${arg} " ;;
 808           esac
 809         done
 810
 811         GCJ_=
 812         for arg in ${GCJ}; do
 813           case $arg in
 814           -[BIL]"${ML_POPDIR}"/*)
 815             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"`' ' ;;
 816           "${ML_POPDIR}"/*)
 817             GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
 818           *)
 819             GCJ_="${GCJ_}${arg} " ;;
 820           esac
 821         done
 822
 823         if test "x${LD_LIBRARY_PATH+set}" = xset; then
 824           LD_LIBRARY_PATH_=
 825           for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
 826             case "$arg" in
 827             "${ML_POPDIR}"/*)
 828               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 829               ;;
 830             esac
 831             if test "x$LD_LIBRARY_PATH_" != x; then
 832               LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
 833             else
 834               LD_LIBRARY_PATH_=$arg
 835             fi
 836           done
 837           ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
 838         fi
 839
 840         if test "x${SHLIB_PATH+set}" = xset; then
 841           SHLIB_PATH_=
 842           for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
 843             case "$arg" in
 844             "${ML_POPDIR}"/*)
 845               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
 846               ;;
 847             esac
 848             if test "x$SHLIB_PATH_" != x; then
 849               SHLIB_PATH_=$SHLIB_PATH_:$arg
 850             else
 851               SHLIB_PATH_=$arg
 852             fi
 853           done
 854           ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
 855         fi
 856     fi
 857
 858     if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
 859         --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
 860         ${ml_arguments} ${ml_srcdiroption} ; then
 861       true
 862     else
 863       exit 1
 864     fi
 865
 866     cd ${ML_POPDIR}
 867
 868   done
 869
 870   cd ${ml_origdir}
 871 fi
 872
 873 fi # ${ml_toplevel_p} = yes
 874 fi # ${enable_multilib} = yes