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