config-ml.in

   1 set -x
   2 # Configure fragment invoked in the post-target section for subdirs
   3 # wanting multilib support.
   4 #
   5 # It is advisable to support a few --enable/--disable options to let the
   6 # user select which libraries s/he really wants.
   7 #
   8 # Subdirectories wishing to use multilib should put the following lines
   9 # in the "post-target" section of configure.in.
  10 #
  11 # if [ "${srcdir}" = "." ] ; then
  12 #   if [ "${with_target_subdir}" != "." ] ; then
  13 #     . ${srcdir}/${with_multisrctop}../../config-ml.in
  14 #   else
  15 #     . ${srcdir}/${with_multisrctop}../config-ml.in
  16 #   fi
  17 # else
  18 #   . ${srcdir}/../config-ml.in
  19 # fi
  20 #
  21 # See librx/configure.in in the libg++ distribution for an example of how
  22 # to handle autoconf'd libraries.
  23 #
  24 # Things are complicated because 6 separate cases must be handled:
  25 # 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
  26 #
  27 # srcdir=. is special.  It must handle make programs that don't handle VPATH.
  28 # To implement this, a symlink tree is built for each library and for each
  29 # multilib subdir.
  30 #
  31 # The build tree is layed out as
  32 #
  33 # ./
  34 #   libg++
  35 #   newlib
  36 #   m68020/
  37 #          libg++
  38 #          newlib
  39 #          m68881/
  40 #                 libg++
  41 #                 newlib
  42 #
  43 # The nice feature about this arrangement is that inter-library references
  44 # in the build tree work without having to care where you are.  Note that
  45 # inter-library references also work in the source tree because symlink trees
  46 # are built when srcdir=.
  47 #
  48 # Configure variables:
  49 # ${with_target_subdir} = "." for native, or ${target_alias} for cross.
  50 # Set by top level Makefile.
  51 # ${with_multisrctop} = how many levels of multilibs there are in the source
  52 # tree.  It exists to handle the case of configuring in the source tree:
  53 # ${srcdir} is not constant.
  54 # ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
  55 #
  56 # Makefile variables:
  57 # MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
  58 # MULITBUILDTOP = number of multilib levels in build tree
  59 # MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
  60 # (only defined in each library's main Makefile).
  61 # MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
  62 # (only defined in each multilib subdir).
  63
  64 # FIXME: Multilib is currently disabled by default for everything other than
  65 # newlib.  It is up to each target to turn on multilib support for the other
  66 # libraries as desired.
  67
  68 # We have to handle being invoked by both Cygnus configure and Autoconf.
  69 # We except both to define `srcdir' and `target' (we *could* figure them
  70 # out, but we'd have to do work that they're already done to figure them out).
  71 # We expect Cygnus configure to define `arguments' and Autoconf to define
  72 # `ac_configure_args'.
  73
  74 if [ -n "${ac_configure_args}" ]; then
  75   Makefile=${ac_file-Makefile}
  76   config_shell=${CONFIG_SHELL-/bin/sh}
  77   arguments="${ac_configure_args}"
  78 else
  79   Makefile=${Makefile-Makefile}
  80   config_shell=${config_shell-/bin/sh}
  81 fi
  82
  83 # Scan all the arguments and set all the ones we need.
  84
  85 for option in $arguments
  86 do
  87   case $option in
  88   --*) ;;
  89   -*) option=-$option ;;
  90   esac
  91
  92   case $option in
  93   --*=*)
  94         optarg=`echo $option | sed -e 's/^[^=]*=//'`
  95         ;;
  96   esac
  97
  98   case $option in
  99   --disable-*)
 100         enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 101         eval $enableopt=no
 102         ;;
 103   --enable-*)
 104         case "$option" in
 105         *=*)    ;;
 106         *)      optarg=yes ;;
 107         esac
 108         enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 109         eval $enableopt="$optarg"
 110         ;;
 111   --norecursion | --no*)
 112         norecursion=yes
 113         ;;
 114   --verbose | --v | --verb*)
 115         verbose=--verbose
 116         ;;
 117   --with-*)
 118         case "$option" in
 119         *=*)    ;;
 120         *)      optarg=yes ;;
 121         esac
 122         withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 123         eval $withopt="$optarg"
 124         ;;
 125   --without-*)
 126         withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 127         eval $withopt=no
 128         ;;
 129   esac
 130 done
 131
 132 # Only do this if --enable-multilib.
 133 if [ "${enable_multilib}" = yes ]; then
 134
 135 # Compute whether this is the library's top level directory
 136 # (ie: not a multilib subdirectory, and not a subdirectory like libg++/src).
 137 # ${with_multisubdir} tells us we're in the right branch, but we could be
 138 # in a subdir of that.
 139 # ??? The previous version could void this test by separating the process into
 140 # two files: one that only the library's toplevel configure.in ran (to
 141 # configure the multilib subdirs), and another that all configure.in's ran to
 142 # update the Makefile.  It seemed reasonable to collapse all multilib support
 143 # into one file, but it does leave us with having to perform this test.
 144 ml_toplevel_p=no
 145 if [ -z "${with_multisubdir}" ]; then
 146   if [ "${srcdir}" = "." ]; then
 147     # ${with_target_subdir} = "." for native, otherwise target alias.
 148     if [ "${with_target_subdir}" = "." ]; then
 149       if [ -f ../config-ml.in ]; then
 150         ml_toplevel_p=yes
 151       fi
 152     else
 153       if [ -f ../../config-ml.in ]; then
 154         ml_toplevel_p=yes
 155       fi
 156     fi
 157   else
 158     if [ -f ${srcdir}/../config-ml.in ]; then
 159       ml_toplevel_p=yes
 160     fi
 161   fi
 162 fi
 163
 164 # If this is the library's top level directory, set multidirs to the
 165 # multilib subdirs to support.  This lives at the top because we need
 166 # `multidirs' set right away, and this section is subject to frequent
 167 # editing (addition of new targets, etc.).
 168
 169 if [ "${ml_toplevel_p}" = yes ]; then
 170
 171 case "${target}" in
 172 # start-sanitize-arc
 173 arc-sbp-elf*)
 174         if [ x$enable_biendian = xyes ]
 175         then
 176                 multidirs="be host graphics audio be/host be/graphics be/audio"
 177         else
 178                 multidirs="host graphics audio"
 179         fi
 180         ;;
 181 arc-*-*)
 182         multidirs="be"
 183         ;;
 184 # end-sanitize-arc
 185 hppa*-*-*)
 186         multidirs="soft-float"
 187         ;;
 188 #m68*-*-aout* | m68*-*-coff* | m68*-*-elf* | m68*-*-vxworks*)
 189 #       multidirs="m68000 m68020 m68881 msoft-float m68000/m68881 m68000/msoft-float m68020/m68881 m68020/msoft-float"
 190 #       ;;
 191 m68*-*-aout* | m68*-*-coff* | m68*-*-elf* | m68*-*-vxworks*)
 192         multidirs="m68000 m68000/m68881"
 193         ;;
 194 i960-*-*)
 195         multidirs=float
 196         ;;
 197 sparclite-*-* | sparclitefrw*-*-*)
 198         multidirs="mfpu msoft-float mflat mno-flat mfpu/mflat mfpu/mno-flat msoft-float/mflat msoft-float/mno-flat"
 199         ;;
 200 sparc-*-* | sparcfrw*-*-*)
 201         multidirs="soft v8 soft/v8"
 202         ;;
 203 z8k-*-coff)
 204         multidirs="z8001 std z8001/std"
 205         ;;
 206 h8300-*-*)
 207         multidirs=h8300h
 208         ;;
 209 h8500-*-*)
 210         multidirs="mbig msmall mcompact mmedium"
 211         ;;
 212 # start-sanitize-jaguar
 213 jaguar-*-*)
 214         multidirs="be"
 215         ;;
 216 # end-sanitize-jaguar
 217 sh-*-*)
 218         multidirs="ml m2 ml/m2"
 219 # start-sanitize-sh3e
 220         multidirs="ml m2 ml/m2 m3e ml/m3e"
 221 # end-sanitize-sh3e
 222         ;;
 223 mips*-*-*)
 224         # Note that not all of these will be built for a particular
 225         # target; what is build depends upon the output gcc
 226         # --print-multi-lib.  We configure them all, to make our life
 227         # simpler here.  If somebody cares about configuration
 228         # efficiency, they will need to switch off on the various
 229         # targets to configure just the directories needed for that
 230         # target.
 231         #
 232         # In the long run, it would be better to configure based on
 233         # the output of gcc --print-multi-lib, but, to do that, we
 234         # would have to build gcc before configuring newlib.
 235         #
 236         # Default to including the single-float directories.
 237         if [ x$enable_single_float = x ]; then
 238           enable_single_float=yes
 239         fi
 240         if [ x$enable_single_float = xyes ]; then
 241           multidirs="soft-float single el eb mips1 mips3 soft-float/el soft-float/eb soft-float/mips1 soft-float/mips3 soft-float/el/mips1 soft-float/el/mips3 soft-float/eb/mips1 soft-float/eb/mips3 single/el single/eb single/mips1 single/mips3 single/el/mips1 single/el/mips3 single/eb/mips1 single/eb/mips3 el/mips1 el/mips3 eb/mips1 eb/mips3"
 242         else
 243           multidirs="soft-float el eb mips1 mips3 soft-float/el soft-float/eb soft-float/mips1 soft-float/mips3 soft-float/el/mips1 soft-float/el/mips3 soft-float/eb/mips1 soft-float/eb/mips3 el/mips1 el/mips3 eb/mips1 eb/mips3"
 244         fi
 245         if [ x$enable_biendian = xno ]
 246         then
 247           old_multidirs="${multidirs}"
 248           multidirs=""
 249           for x in ${old_multidirs}; do
 250             case "$x" in
 251               *endian* ) : ;;
 252               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 253             esac
 254           done
 255         fi
 256         if [ x$enable_softfloat = xno ]
 257         then
 258           old_multidirs="${multidirs}"
 259           multidirs=""
 260           for x in ${old_multidirs}; do
 261             case "$x" in
 262               *soft-float* ) : ;;
 263               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 264             esac
 265           done
 266         fi
 267         if [ x$enable_relocatable = xno ]
 268         then
 269           old_multidirs="${multidirs}"
 270           multidirs=""
 271           for x in ${old_multidirs}; do
 272             case "$x" in
 273               *relocatable* ) : ;;
 274               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 275             esac
 276           done
 277         fi
 278         if [ x$enable_sysv = xno ]
 279         then
 280           old_multidirs="${multidirs}"
 281           multidirs=""
 282           for x in ${old_multidirs}; do
 283             case "$x" in
 284               *sysv* ) : ;;
 285               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 286             esac
 287           done
 288         fi
 289         ;;
 290 powerpc-ibm-aix* | rs6000-ibm-aix*)
 291         multidirs="soft-float common soft-float/common"
 292         if [ x$enable_softfloat = xno ]
 293         then
 294           old_multidirs="${multidirs}"
 295           multidirs=""
 296           for x in ${old_multidirs}; do
 297             case "$x" in
 298               *soft-float* ) : ;;
 299               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 300             esac
 301           done
 302         fi
 303         if [ x$enable_commoncpu = xno ]
 304         then
 305           old_multidirs="${multidirs}"
 306           multidirs=""
 307           for x in ${old_multidirs}; do
 308             case "$x" in
 309               *common* ) : ;;
 310               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 311             esac
 312           done
 313         fi
 314         ;;
 315 powerpc-*-eabiaix*)
 316         multidirs="soft-float relocatable little sysv little/sysv relocatable/little relocatable/sysv relocatable/little/sysv soft-float/relocatable soft-float/little soft-float/sysv soft-float/little/sysv soft-float/relocatable/little soft-float/relocatable/sysv soft-float/relocatable/little/sysv"
 317         if [ x$enable_biendian = xno ]
 318         then
 319           old_multidirs="${multidirs}"
 320           multidirs=""
 321           for x in ${old_multidirs}; do
 322             case "$x" in
 323               *endian* ) : ;;
 324               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 325             esac
 326           done
 327         fi
 328         if [ x$enable_softfloat = xno ]
 329         then
 330           old_multidirs="${multidirs}"
 331           multidirs=""
 332           for x in ${old_multidirs}; do
 333             case "$x" in
 334               *soft-float* ) : ;;
 335               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 336             esac
 337           done
 338         fi
 339         if [ x$enable_relocatable = xno ]
 340         then
 341           old_multidirs="${multidirs}"
 342           multidirs=""
 343           for x in ${old_multidirs}; do
 344             case "$x" in
 345               *relocatable* ) : ;;
 346               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 347             esac
 348           done
 349         fi
 350         if [ x$enable_sysv = xno ]
 351         then
 352           old_multidirs="${multidirs}"
 353           multidirs=""
 354           for x in ${old_multidirs}; do
 355             case "$x" in
 356               *sysv* ) : ;;
 357               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 358             esac
 359           done
 360         fi
 361         ;;
 362 powerpc-*-eabi* | powerpc-*-elf* | powerpc-*-sysv4*)
 363         multidirs="soft-float relocatable little aix little/aix relocatable/little relocatable/aix relocatable/little/aix soft-float/relocatable soft-float/little soft-float/aix soft-float/little/aix soft-float/relocatable/little soft-float/relocatable/aix soft-float/relocatable/little/aix aixdesc soft-float/aixdesc"
 364         if [ x$enable_biendian = xno ]
 365         then
 366           old_multidirs="${multidirs}"
 367           multidirs=""
 368           for x in ${old_multidirs}; do
 369             case "$x" in
 370               *endian* ) : ;;
 371               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 372             esac
 373           done
 374         fi
 375         if [ x$enable_softfloat = xno ]
 376         then
 377           old_multidirs="${multidirs}"
 378           multidirs=""
 379           for x in ${old_multidirs}; do
 380             case "$x" in
 381               *soft-float* ) : ;;
 382               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 383             esac
 384           done
 385         fi
 386         if [ x$enable_relocatable = xno ]
 387         then
 388           old_multidirs="${multidirs}"
 389           multidirs=""
 390           for x in ${old_multidirs}; do
 391             case "$x" in
 392               *relocatable* ) : ;;
 393               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 394             esac
 395           done
 396         fi
 397         if [ x$enable_aix = xno ]
 398         then
 399           old_multidirs="${multidirs}"
 400           multidirs=""
 401           for x in ${old_multidirs}; do
 402             case "$x" in
 403               *aix* ) : ;;
 404               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 405             esac
 406           done
 407         fi
 408         ;;
 409 powerpcle-*-eabi* | powerpcle-*-elf* | powerpcle-*-sysv4*)
 410         multidirs="soft-float relocatable big aix big/aix relocatable/big relocatable/aix relocatable/big/aix soft-float/relocatable soft-float/big soft-float/aix soft-float/big/aix soft-float/relocatable/big soft-float/relocatable/aix soft-float/relocatable/big/aix"
 411         if [ x$enable_biendian = xno ]
 412         then
 413           old_multidirs="${multidirs}"
 414           multidirs=""
 415           for x in ${old_multidirs}; do
 416             case "$x" in
 417               *endian* ) : ;;
 418               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 419             esac
 420           done
 421         fi
 422         if [ x$enable_softfloat = xno ]
 423         then
 424           old_multidirs="${multidirs}"
 425           multidirs=""
 426           for x in ${old_multidirs}; do
 427             case "$x" in
 428               *soft-float* ) : ;;
 429               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 430             esac
 431           done
 432         fi
 433         if [ x$enable_relocatable = xno ]
 434         then
 435           old_multidirs="${multidirs}"
 436           multidirs=""
 437           for x in ${old_multidirs}; do
 438             case "$x" in
 439               *relocatable* ) : ;;
 440               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 441             esac
 442           done
 443         fi
 444         if [ x$enable_aix = xno ]
 445         then
 446           old_multidirs="${multidirs}"
 447           multidirs=""
 448           for x in ${old_multidirs}; do
 449             case "$x" in
 450               *aix* ) : ;;
 451               *) if [ x"$multidirs" = x ]; then multidirs="$x"; else multidirs="${multidirs} ${x}"; fi ;;
 452             esac
 453           done
 454         fi
 455         ;;
 456 *)
 457         multidirs=
 458         ;;
 459 esac
 460
 461 # Add code to library's top level makefile to handle building the multilib
 462 # subdirs.
 463
 464 cat > Multi.tem <<\EOF
 465
 466 # FIXME: There should be an @-sign in front of the `if'.
 467 # Leave out until this is tested a bit more.
 468 multi-do:
 469         if [ -z "$(MULTIDIRS)" ]; then \
 470           true; \
 471         else \
 472           rootpre=`pwd`/; export rootpre; \
 473           srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
 474           lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 475           compiler="$(CC)"; \
 476           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
 477             dir=`echo $$i | sed -e 's/;.*$$//'`; \
 478             if [ "$${dir}" = "." ]; then \
 479               true; \
 480             else \
 481               if [ -d ../$${dir}/$${lib} ]; then \
 482                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
 483                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
 484                                 CFLAGS="$(CFLAGS) $${flags}" \
 485                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
 486                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
 487                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
 488                                 $(DO)); then \
 489                   true; \
 490                 else \
 491                   exit 1; \
 492                 fi; \
 493               else true; \
 494               fi; \
 495             fi; \
 496           done; \
 497         fi
 498
 499 # FIXME: There should be an @-sign in front of the `if'.
 500 # Leave out until this is tested a bit more.
 501 multi-clean:
 502         if [ -z "$(MULTIDIRS)" ]; then \
 503           true; \
 504         else \
 505           lib=`pwd | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
 506           for dir in Makefile $(MULTIDIRS); do \
 507             if [ -f ../$${dir}/$${lib}/Makefile ]; then \
 508               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
 509               then true; \
 510               else exit 1; \
 511               fi; \
 512             else true; \
 513             fi; \
 514           done; \
 515         fi
 516 EOF
 517
 518 cat ${Makefile} Multi.tem > Makefile.tem
 519 rm -f ${Makefile} Multi.tem
 520 mv Makefile.tem ${Makefile}
 521
 522 fi # ${ml_toplevel_p} = yes
 523
 524 if [ "${verbose}" = --verbose ]; then
 525   echo "Adding multilib support to Makefile in `pwd`"
 526   if [ "${ml_toplevel_p}" = yes ]; then
 527     echo "multidirs=${multidirs}"
 528   fi
 529   echo "with_multisubdir=${with_multisubdir}"
 530 fi
 531
 532 if [ "${srcdir}" = "." ]; then
 533   if [ "${with_target_subdir}" != "." ]; then
 534     ml_srcdotdot="../"
 535   else
 536     ml_srcdotdot=""
 537   fi
 538 else
 539   ml_srcdotdot=""
 540 fi
 541
 542 if [ -z "${with_multisubdir}" ]; then
 543   ml_subdir=
 544   ml_builddotdot=
 545   : # ml_srcdotdot= # already set
 546 else
 547   ml_subdir="/${with_multisubdir}"
 548   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
 549   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
 550   if [ "$srcdir" = "." ]; then
 551     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
 552   else
 553     : # ml_srcdotdot= # already set
 554   fi
 555 fi
 556
 557 if [ "${ml_toplevel_p}" = yes ]; then
 558   ml_do='$(MAKE)'
 559   ml_clean='$(MAKE)'
 560 else
 561   ml_do=true
 562   ml_clean=true
 563 fi
 564
 565 # TOP is used by newlib and should not be used elsewhere for this purpose.
 566 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
 567 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
 568 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
 569 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
 570 # of course.
 571 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
 572 # and lists the subdirectories to recurse into.
 573 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
 574 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
 575 # a leading '/'.
 576 # MULTIDO is used for targets like all, install, and check where
 577 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
 578 # MULTICLEAN is used for the *clean targets.
 579 #
 580 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
 581 # currently kept separate because we don't want the *clean targets to require
 582 # the existence of the compiler (which MULTIDO currently requires) and
 583 # therefore we'd have to record the directory options as well as names
 584 # (currently we just record the names and use --print-multi-lib to get the
 585 # options).
 586
 587 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
 588     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
 589     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
 590     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
 591     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
 592     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
 593     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
 594         ${Makefile} > Makefile.tem
 595 rm -f ${Makefile}
 596 mv Makefile.tem ${Makefile}
 597
 598 # If this is the library's top level, configure each multilib subdir.
 599 # This is done at the end because this is the loop that runs configure
 600 # in each multilib subdir and it seemed reasonable to finish updating the
 601 # Makefile before going on to configure the subdirs.
 602
 603 if [ "${ml_toplevel_p}" = yes ]; then
 604
 605 # We must freshly configure each subdirectory.  This bit of code is
 606 # actually partially stolen from the main configure script.  FIXME.
 607
 608 if [ -n "${multidirs}" ] && [ -z "${norecursion}" ]; then
 609
 610   if [ "${verbose}" = --verbose ]; then
 611     echo "Running configure in multilib subdirs ${multidirs}"
 612     echo "pwd: `pwd`"
 613   fi
 614
 615   ml_origdir=`pwd`
 616   ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
 617   # cd to top-level-build-dir/${with_target_subdir}
 618   cd ..
 619
 620   for dir in ${multidirs}; do
 621
 622     if [ "${verbose}" = --verbose ]; then
 623       echo "Running configure in multilib subdir ${dir}"
 624       echo "pwd: `pwd`"
 625     fi
 626
 627     if [ -d ${dir} ]; then true; else mkdir ${dir}; fi
 628     if [ -d ${dir}/${ml_libdir} ]; then true; else mkdir ${dir}/${ml_libdir}; fi
 629
 630     # Eg: if ${dir} = m68000/m68881, dotdot = ../../
 631     dotdot=../`echo ${dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 632
 633     case ${srcdir} in
 634     ".")
 635       echo Building symlink tree in `pwd`/${dir}/${ml_libdir}
 636       if [ "${with_target_subdir}" != "." ]; then
 637         ml_unsubdir="../"
 638       else
 639         ml_unsubdir=""
 640       fi
 641       (cd ${dir}/${ml_libdir};
 642        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
 643       newsrcdir="."
 644       srcdiroption=
 645       multisrctop=${dotdot}
 646       ;;
 647     *)
 648       case "${srcdir}" in
 649       /*) # absolute path
 650         newsrcdir=${srcdir}
 651         ;;
 652       *) # otherwise relative
 653         newsrcdir=${dotdot}${srcdir}
 654         ;;
 655       esac
 656       srcdiroption="-srcdir=${newsrcdir}"
 657       multisrctop=
 658       ;;
 659     esac
 660
 661     case "${progname}" in
 662     /*)     recprog=${progname} ;;
 663     *)      recprog=${dotdot}${progname} ;;
 664     esac
 665
 666     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
 667     ML_POPDIR=`pwd`
 668     cd ${dir}/${ml_libdir}
 669
 670     if [ -f ${newsrcdir}/configure ]; then
 671       recprog=${newsrcdir}/configure
 672     fi
 673     if eval ${config_shell} -x ${recprog} \
 674         --with-multisubdir=${dir} --with-multisrctop=${multisrctop} \
 675         $arguments ${srcdiroption} ; then
 676       true
 677     else
 678       exit 1
 679     fi
 680
 681     cd ${ML_POPDIR}
 682
 683   done
 684
 685   cd ${ml_origdir}
 686 fi
 687
 688 fi # ${ml_toplevel_p} = yes
 689 fi # ${enable_multilib} = yes