libgcc/config.host

   1 # libgcc host-specific configuration file.
   2 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   3 # 2008, 2009, 2010 Free Software Foundation, Inc.
   4
   5 #This file is part of GCC.
   6
   7 #GCC is free software; you can redistribute it and/or modify it under
   8 #the terms of the GNU General Public License as published by the Free
   9 #Software Foundation; either version 3, or (at your option) any later
  10 #version.
  11
  12 #GCC is distributed in the hope that it will be useful, but WITHOUT
  13 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 #FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 #for more details.
  16
  17 #You should have received a copy of the GNU General Public License
  18 #along with GCC; see the file COPYING3.  If not see
  19 #<http://www.gnu.org/licenses/>.
  20
  21 # This is the libgcc host-specific configuration file
  22 # where a configuration type is mapped to different system-specific
  23 # definitions and files.  This is invoked by the autoconf-generated
  24 # configure script.  Putting it in a separate shell file lets us skip
  25 # running autoconf when modifying host-specific information.
  26
  27 # This file bears an obvious resemblance to gcc/config.gcc.  The cases
  28 # should be kept similar, to ease moving library-specific settings
  29 # from config.gcc to this file.  That is also why tmake_file is
  30 # left as tmake_file, rather than hmake_file, even though this library
  31 # switches on ${host}.
  32
  33 # This file switches on the shell variable ${host}, and also uses the
  34 # following shell variables:
  35 #
  36 #  with_*               Various variables as set by configure.
  37
  38 # This file sets the following shell variables for use by the
  39 # autoconf-generated configure script:
  40 #
  41 #  asm_hidden_op        The assembler pseudo-op to use for hide
  42 #                       lists for object files implemented in
  43 #                       assembly (with -fvisibility=hidden for C).
  44 #                       The default is ".hidden".
  45 #  cpu_type             The name of the cpu, if different from the first
  46 #                       chunk of the canonical host name.
  47 #  extra_parts          List of extra object files that should be compiled
  48 #                       for this target machine.  This may be overridden
  49 #                       by setting EXTRA_PARTS in a tmake_file fragment.
  50 #                       If either is set, EXTRA_PARTS and
  51 #                       EXTRA_MULTILIB_PARTS inherited from the GCC
  52 #                       subdirectory will be ignored.
  53 #  tmake_file           A list of machine-description-specific
  54 #                       makefile-fragments, if different from
  55 #                       "$cpu_type/t-$cpu_type".
  56
  57 asm_hidden_op=.hidden
  58 extra_parts=
  59 tmake_file=
  60
  61 # Set default cpu_type so it can be updated in each machine entry.
  62 cpu_type=`echo ${host} | sed 's/-.*$//'`
  63 case ${host} in
  64 m32c*-*-*)
  65         cpu_type=m32c
  66         ;;
  67 alpha*-*-*)
  68         cpu_type=alpha
  69         ;;
  70 am33_2.0-*-linux*)
  71         cpu_type=mn10300
  72         ;;
  73 arm*-*-*)
  74         cpu_type=arm
  75         ;;
  76 avr-*-*)
  77         cpu_type=avr
  78         ;;
  79 bfin*-*)
  80         cpu_type=bfin
  81         ;;
  82 fido-*-*)
  83         cpu_type=m68k
  84         ;;
  85 frv*)   cpu_type=frv
  86         ;;
  87 moxie*) cpu_type=moxie
  88         ;;
  89 i[34567]86-*-*)
  90         cpu_type=i386
  91         ;;
  92 x86_64-*-*)
  93         cpu_type=i386
  94         ;;
  95 ia64-*-*)
  96         ;;
  97 hppa*-*-*)
  98         cpu_type=pa
  99         ;;
 100 lm32*-*-*)
 101         cpu_type=lm32
 102         ;;
 103 m32r*-*-*)
 104         cpu_type=m32r
 105         ;;
 106 m68k-*-*)
 107         ;;
 108 mep*-*-*)
 109         ;;
 110 microblaze*-*-*)
 111         cpu_type=microblaze
 112         ;;
 113 mips*-*-*)
 114         cpu_type=mips
 115         ;;
 116 powerpc*-*-*)
 117         cpu_type=rs6000
 118         ;;
 119 rs6000*-*-*)
 120         ;;
 121 score*-*-*)
 122         cpu_type=score
 123         ;;
 124 sparc64*-*-*)
 125         cpu_type=sparc
 126         ;;
 127 sparc*-*-*)
 128         cpu_type=sparc
 129         ;;
 130 spu*-*-*)
 131         cpu_type=spu
 132         ;;
 133 s390*-*-*)
 134         cpu_type=s390
 135         ;;
 136 # Note the 'l'; we need to be able to match e.g. "shle" or "shl".
 137 sh[123456789lbe]*-*-*)
 138         cpu_type=sh
 139         ;;
 140 esac
 141
 142 # Common parts for widely ported systems.
 143 case ${host} in
 144 *-*-darwin*)
 145   asm_hidden_op=.private_extern
 146   tmake_file="t-darwin ${cpu_type}/t-darwin t-slibgcc-darwin"
 147   ;;
 148 *-*-freebsd[12] | *-*-freebsd[12].* | *-*-freebsd*aout*)
 149   # This is the place-holder for the generic a.out configuration
 150   # of FreeBSD.  No actual configuration resides here since
 151   # there was only ever a bare-bones ix86 configuration for
 152   # a.out and it exists solely in the machine-specific section.
 153   # This place-holder must exist to avoid dropping into
 154   # the generic ELF configuration of FreeBSD (i.e. it must be
 155   # ordered before that section).
 156   ;;
 157 *-*-freebsd*)
 158   # This is the generic ELF configuration of FreeBSD.  Later
 159   # machine-specific sections may refine and add to this
 160   # configuration.
 161   ;;
 162 *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu | *-*-gnu*)
 163   extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
 164   ;;
 165 *-*-netbsd*)
 166   ;;
 167 *-*-openbsd*)
 168   ;;
 169 *-*-rtems*)
 170   ;;
 171 *-*-vxworks*)
 172   ;;
 173 *-*-elf)
 174   ;;
 175 esac
 176
 177 case ${host} in
 178 # Support site-specific machine types.
 179 *local*)
 180         rest=`echo ${host} | sed -e "s/$cpu_type-//"`
 181         if test -f $srcdir/config/${cpu_type}/t-$rest
 182         then tmake_file=${cpu_type}/t-$rest
 183         fi
 184         ;;
 185 alpha*-*-linux* | alpha*-*-gnu*)
 186         tmake_file="${tmake_file} alpha/t-crtfm"
 187         extra_parts="$extra_parts crtfastmath.o"
 188         ;;
 189 alpha*-*-freebsd*)
 190         ;;
 191 alpha*-*-netbsd*)
 192         ;;
 193 alpha*-*-openbsd*)
 194         ;;
 195 alpha*-dec-osf5.1*)
 196         ;;
 197 alpha64-dec-*vms*)
 198         tmake_file="vms/t-vms vms/t-vms64 alpha/t-vms"
 199         ;;
 200 alpha*-dec-*vms*)
 201         tmake_file="vms/t-vms alpha/t-vms"
 202         ;;
 203 arc-*-elf*)
 204         ;;
 205 arm-wrs-vxworks)
 206         ;;
 207 arm*-*-freebsd*)
 208         ;;
 209 arm*-*-netbsdelf*)
 210         ;;
 211 arm*-*-netbsd*)
 212         ;;
 213 arm*-*-linux*)                  # ARM GNU/Linux with ELF
 214         ;;
 215 arm*-*-uclinux*)                # ARM ucLinux
 216         ;;
 217 arm*-*-ecos-elf)
 218         ;;
 219 arm*-*-eabi* | arm*-*-symbianelf* )
 220         ;;
 221 arm*-*-rtems*)
 222         ;;
 223 arm*-*-elf)
 224         ;;
 225 arm*-wince-pe*)
 226         ;;
 227 arm-*-pe*)
 228         ;;
 229 avr-*-rtems*)
 230         ;;
 231 avr-*-*)
 232     # Make HImode functions for AVR
 233     tmake_file=${cpu_type}/t-avr
 234         ;;
 235 bfin*-elf*)
 236         ;;
 237 bfin*-uclinux*)
 238         ;;
 239 bfin*-linux-uclibc*)
 240         # No need to build crtbeginT.o on uClibc systems.  Should probably
 241         # be moved to the OS specific section above.
 242         extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
 243         ;;
 244 bfin*-*)
 245         ;;
 246 crisv32-*-elf | crisv32-*-none | cris-*-elf | cris-*-none)
 247         extra_parts="crtbegin.o crtend.o"
 248         ;;
 249 cris-*-linux* | crisv32-*-linux*)
 250         ;;
 251 crx-*-elf)
 252         ;;
 253 fido-*-elf)
 254         ;;
 255 fr30-*-elf)
 256         ;;
 257 frv-*-elf)
 258         ;;
 259 frv-*-*linux*)
 260         ;;
 261 h8300-*-rtems*)
 262         ;;
 263 h8300-*-elf*)
 264         ;;
 265 hppa*64*-*-linux*)
 266         ;;
 267 hppa*-*-linux*)
 268         ;;
 269 hppa[12]*-*-hpux10*)
 270         ;;
 271 hppa*64*-*-hpux11*)
 272         ;;
 273 hppa[12]*-*-hpux11*)
 274         ;;
 275 i[34567]86-*-darwin*)
 276         ;;
 277 x86_64-*-darwin*)
 278         tmake_file="t-darwin ${cpu_type}/t-darwin64 t-slibgcc-darwin"
 279         ;;
 280 i[34567]86-*-elf*)
 281         ;;
 282 x86_64-*-elf*)
 283         ;;
 284 i[34567]86-*-freebsd*)
 285         tmake_file="${tmake_file} i386/t-freebsd"
 286         ;;
 287 x86_64-*-freebsd*)
 288         tmake_file="${tmake_file} i386/t-freebsd"
 289         ;;
 290 i[34567]86-*-netbsdelf*)
 291         ;;
 292 i[34567]86-*-netbsd*)
 293         ;;
 294 x86_64-*-netbsd*)
 295         ;;
 296 i[34567]86-*-openbsd2.*|i[34567]86-*openbsd3.[0123])
 297         ;;
 298 i[34567]86-*-openbsd*)
 299         ;;
 300 i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu | i[34567]86-*-gnu*)
 301         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
 302         tmake_file="${tmake_file} i386/t-crtpc i386/t-crtfm"
 303         ;;
 304 x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
 305         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
 306         tmake_file="${tmake_file} i386/t-crtpc i386/t-crtfm"
 307         ;;
 308 i[34567]86-pc-msdosdjgpp*)
 309         ;;
 310 i[34567]86-*-lynxos*)
 311         ;;
 312 i[3456x]86-*-netware*)
 313         case /${with_ld} in
 314         */nwld)
 315                 tmake_file="${tmake_file} i386/t-nwld"
 316                 ;;
 317         esac
 318         ;;
 319 i[34567]86-*-nto-qnx*)
 320         ;;
 321 i[34567]86-*-rtems*)
 322         ;;
 323 i[34567]86-*-solaris2*)
 324         tmake_file="${tmake_file} i386/t-sol2"
 325         case ${host} in
 326         *-*-solaris2.1[0-9]*)
 327                 # Solaris 2.10 provides crt1.o, crti.o, crtn.o, and gcrt1.o as
 328                 # part of the base system.
 329                 extra_parts="gmon.o crtbegin.o crtend.o"
 330                 ;;
 331         *)
 332                 extra_parts="crt1.o crti.o crtn.o gcrt1.o gmon.o crtbegin.o crtend.o"
 333                 ;;
 334         esac
 335         ;;
 336 i[4567]86-wrs-vxworks|i[4567]86-wrs-vxworksae)
 337         ;;
 338 i[34567]86-*-pe)
 339         ;;
 340 i[34567]86-*-cygwin* | i[34567]86-*-mingw*)
 341         extra_parts="crtbegin.o crtend.o crtfastmath.o"
 342         tmake_file="i386/t-cygming i386/t-crtfm"
 343         ;;
 344 x86_64-*-mingw*)
 345         ;;
 346 i[34567]86-*-interix3*)
 347         ;;
 348 ia64*-*-elf*)
 349         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
 350         tmake_file="ia64/t-ia64"
 351         ;;
 352 ia64*-*-freebsd*)
 353         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
 354         tmake_file="ia64/t-ia64"
 355         ;;
 356 ia64*-*-linux*)
 357         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
 358         tmake_file="ia64/t-ia64 t-softfp ia64/t-fprules-softfp ia64/t-softfp-compat"
 359         ;;
 360 ia64*-*-hpux*)
 361         ;;
 362 ia64-hp-*vms*)
 363         tmake_file="vms/t-vms vms/t-vms64 ia64/t-vms"
 364         ;;
 365 iq2000*-*-elf*)
 366         ;;
 367 lm32-*-elf*|lm32-*-rtems*)
 368         extra_parts="crtbegin.o crtend.o crti.o crtn.o"
 369         tmake_file="lm32/t-lm32 lm32/t-elf t-softfp"
 370         ;;
 371 lm32-*-uclinux*)
 372         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
 373         tmake_file="lm32/t-lm32 lm32/t-uclinux t-softfp"
 374         ;;
 375 m32r-*-elf*|m32r-*-rtems*)
 376         ;;
 377 m32rle-*-elf*)
 378         ;;
 379 m32r-*-linux*)
 380         ;;
 381 m32rle-*-linux*)
 382         ;;
 383 m68hc11-*-*|m6811-*-*)
 384         ;;
 385 m68hc12-*-*|m6812-*-*)
 386         ;;
 387 m68k-*-elf*)
 388         ;;
 389 m68k*-*-netbsdelf*)
 390         ;;
 391 m68k*-*-openbsd*)
 392         ;;
 393 m68k-*-uclinux*)                # Motorola m68k/ColdFire running uClinux with uClibc
 394         ;;
 395 m68k-*-linux*)          # Motorola m68k's running GNU/Linux
 396                                 # with ELF format using glibc 2
 397                                 # aka the GNU/Linux C library 6.
 398         ;;
 399 m68k-*-rtems*)
 400         ;;
 401 mcore-*-elf)
 402         ;;
 403 mcore-*-pe*)
 404         ;;
 405 microblaze*-*-*)
 406         tmake_file="microblaze/t-microblaze"
 407         ;;
 408 mips-sgi-irix[56]*)
 409         ;;
 410 mips*-*-netbsd*)                        # NetBSD/mips, either endian.
 411         ;;
 412 mips64*-*-linux*)
 413         extra_parts="$extra_parts crtfastmath.o"
 414         tmake_file="{$tmake_file} mips/t-crtfm"
 415         ;;
 416 mips*-*-linux*)                         # Linux MIPS, either endian.
 417         extra_parts="$extra_parts crtfastmath.o"
 418         tmake_file="{$tmake_file} mips/t-crtfm"
 419         ;;
 420 mips*-*-openbsd*)
 421         ;;
 422 mipsisa32-*-elf* | mipsisa32el-*-elf*)
 423         ;;
 424 mipsisa32r2-*-elf* | mipsisa32r2el-*-elf*)
 425         ;;
 426 mipsisa64-*-elf* | mipsisa64el-*-elf*)
 427         ;;
 428 mipsisa64r2-*-elf* | mipsisa64r2el-*-elf*)
 429         ;;
 430 mipsisa64sr71k-*-elf*)
 431         ;;
 432 mipsisa64sb1-*-elf* | mipsisa64sb1el-*-elf*)
 433         ;;
 434 mips-*-elf* | mipsel-*-elf*)
 435         ;;
 436 mips64-*-elf* | mips64el-*-elf*)
 437         ;;
 438 mips64vr-*-elf* | mips64vrel-*-elf*)
 439         ;;
 440 mips64orion-*-elf* | mips64orionel-*-elf*)
 441         ;;
 442 mips*-*-rtems*)
 443         ;;
 444 mips-wrs-vxworks)
 445         ;;
 446 mipstx39-*-elf* | mipstx39el-*-elf*)
 447         ;;
 448 mmix-knuth-mmixware)
 449         extra_parts="crti.o crtn.o crtbegin.o crtend.o"
 450         tmake_file="${tmake_file} ${cpu_type}/t-${cpu_type}"
 451         ;;
 452 mn10300-*-*)
 453         ;;
 454 moxie-*-*)
 455         tmake_file="moxie/t-moxie moxie/t-moxie-softfp"
 456         extra_parts="crtbegin.o crtend.o crti.o crtn.o"
 457         ;;
 458 pdp11-*-*)
 459         ;;
 460 picochip-*-*)
 461         ;;
 462 powerpc-*-darwin*)
 463         ;;
 464 powerpc64-*-darwin*)
 465         ;;
 466 powerpc-*-freebsd*)
 467         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-freebsd t-softfp"
 468         ;;
 469 powerpc-*-netbsd*)
 470         ;;
 471 powerpc-*-eabispe*)
 472         tmake_file="${tmake_file} rs6000/t-ppccomm"
 473         ;;
 474 powerpc-*-eabisimaltivec*)
 475         ;;
 476 powerpc-*-eabisim*)
 477         ;;
 478 powerpc-*-elf*)
 479         ;;
 480 powerpc-*-eabialtivec*)
 481         ;;
 482 powerpc-*-eabi*)
 483         tmake_file="${tmake_file} rs6000/t-ppccomm"
 484         ;;
 485 powerpc-*-rtems*)
 486         ;;
 487 powerpc-*-linux* | powerpc64-*-linux*)
 488         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-ldbl128 t-softfp"
 489         ;;
 490 powerpc64-*-gnu*)
 491         tmake_file="${tmake_file} rs6000/t-ldbl128 t-softfp"
 492         ;;
 493 powerpc-*-gnu-gnualtivec*)
 494         tmake_file="${tmake_file} rs6000/t-ldbl128"
 495         ;;
 496 powerpc-*-gnu*)
 497         tmake_file="${tmake_file} rs6000/t-ldbl128"
 498         ;;
 499 powerpc-wrs-vxworks|powerpc-wrs-vxworksae)
 500         ;;
 501 powerpc-*-lynxos*)
 502         ;;
 503 powerpcle-*-elf*)
 504         ;;
 505 powerpcle-*-eabisim*)
 506         ;;
 507 powerpcle-*-eabi*)
 508         ;;
 509 rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*)
 510         ;;
 511 rs6000-ibm-aix5.1.* | powerpc-ibm-aix5.1.*)
 512         ;;
 513 rs6000-ibm-aix[56789].* | powerpc-ibm-aix[56789].*)
 514         ;;
 515 rx-*-elf)
 516         extra_parts="crtbegin.o crtend.o"
 517         tmake_file="rx/t-rx"
 518         ;;
 519 s390-*-linux*)
 520         tmake_file="${tmake_file} s390/t-crtstuff s390/t-linux s390/32/t-floattodi"
 521         ;;
 522 s390x-*-linux*)
 523         tmake_file="${tmake_file} s390/t-crtstuff s390/t-linux"
 524         ;;
 525 s390x-ibm-tpf*)
 526         tmake_file="${tmake_file} s390/t-crtstuff s390/t-tpf"
 527         ;;
 528 score-*-elf)
 529         ;;
 530 sh-*-elf* | sh[12346l]*-*-elf* | \
 531 sh-*-symbianelf* | sh[12346l]*-*-symbianelf* | \
 532   sh-*-linux* | sh[2346lbe]*-*-linux* | \
 533   sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
 534    sh64-*-netbsd* | sh64l*-*-netbsd*)
 535         case ${host} in
 536         sh*-*-linux*)
 537                 tmake_file="${tmake_file} sh/t-linux"
 538                 ;;
 539         esac
 540         ;;
 541 sh-*-rtems*)
 542         ;;
 543 sh-wrs-vxworks)
 544         ;;
 545 sparc-*-netbsdelf*)
 546         ;;
 547 sparc64-*-openbsd*)
 548         ;;
 549 sparc-*-elf*)
 550         ;;
 551 sparc-*-linux*)         # SPARC's running GNU/Linux, libc6
 552         extra_parts="$extra_parts crtfastmath.o"
 553         tmake_file="${tmake_file} sparc/t-crtfm"
 554         ;;
 555 sparc-*-rtems* | sparc64-*-rtems* )
 556         ;;
 557 sparc64-*-solaris2* | sparcv9-*-solaris2*)
 558         ;;
 559 sparc-*-solaris2*)
 560         ;;
 561 sparc64-*-elf*)
 562         ;;
 563 sparc-wrs-vxworks)
 564         ;;
 565 sparc64-*-freebsd*|ultrasparc-*-freebsd*)
 566         ;;
 567 sparc64-*-linux*)               # 64-bit SPARC's running GNU/Linux
 568         extra_parts="$extra_parts crtfastmath.o"
 569         tmake_file="${tmake_file} sparc/t-crtfm"
 570         ;;
 571 sparc64-*-netbsd*)
 572         ;;
 573 spu-*-elf*)
 574         ;;
 575 v850e1-*-*)
 576         ;;
 577 v850e-*-*)
 578         ;;
 579 v850-*-*)
 580         ;;
 581 vax-*-linux*)
 582         ;;
 583 vax-*-netbsdelf*)
 584         ;;
 585 vax-*-netbsd*)
 586         ;;
 587 vax-*-openbsd*)
 588         ;;
 589 xstormy16-*-elf)
 590         ;;
 591 xtensa*-*-elf*)
 592         ;;
 593 xtensa*-*-linux*)
 594         ;;
 595 am33_2.0-*-linux*)
 596         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
 597         ;;
 598 m32c-*-elf*|m32c-*-rtems*)
 599         ;;
 600 mep*-*-*)
 601         ;;
 602 *)
 603         echo "*** Configuration ${host} not supported" 1>&2
 604         exit 1
 605         ;;
 606 esac
 607
 608 case ${host} in
 609 i[34567]86-*-linux* | x86_64-*-linux* | \
 610   i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu | \
 611   i[34567]86-*-gnu*)
 612         tmake_file="${tmake_file} t-tls"
 613         if test "$libgcc_cv_cfi" = "yes"; then
 614                 tmake_file="${tmake_file} t-stack i386/t-stack-i386"
 615         fi
 616         ;;
 617 esac
 618
 619 case ${host} in
 620 i[34567]86-*-darwin* | x86_64-*-darwin* | \
 621   i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu | \
 622   i[34567]86-*-linux* | x86_64-*-linux* | \
 623   i[34567]86-*-gnu* | \
 624   i[34567]86-*-solaris2* | \
 625   i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw* | \
 626   i[34567]86-*-freebsd* | x86_64-*-freebsd*)
 627         if test "${host_address}" = 32; then
 628                 tmake_file="${tmake_file} t-softfp i386/${host_address}/t-fprules-softfp"
 629         fi
 630         ;;
 631 esac
 632
 633 case ${host} in
 634 i[34567]86-*-linux* | x86_64-*-linux*)
 635         # Provide backward binary compatibility for 64bit Linux/x86.
 636         if test "${host_address}" = 64; then
 637                 tmake_file="${tmake_file} i386/${host_address}/t-softfp-compat"
 638         fi
 639         ;;
 640 esac