Here is a list of the possible arguments to config.gcc.
See the installation guide (delivered with GCT) for instructions
about GCT installation.

    `sysV68'
	  Motorola machines running V68R5 or V68R6 (System V Release 3).

    `sysV88'
	  Motorola machines running V88, R32 (System V Release 3).

    `sysV88R4'
	  Motorola 88K machines running System V Release 4.

    `rs6000'
	  IBM RS/6000 machines.  Known to work on AIX 3.2.

    `370'
	IBM 370 architecture running AIX.

    `vax'
          Vaxes running BSD.

    `vms'
          Vaxes running VMS.

    `vax-sysv'
          Vaxes running system V.

    `i386-sysv'
          Intel 386 PCs running system V.

    `i386-sysv-gas'
          Intel 386 PCs running system V, using the GNU assembler and
          GNU linker.

    `sequent-i386'
          Sequent with Intel 386 processors.

    `i386-aix'
          Intel 386 PCs or PS/2s running AIX.

    `sun2'
          Sun 2 running system version 2 or 3.

    `sun3'
          Sun 3 running system version 2 or 3, with 68881.  Note
          there we do not provide a configuration file to use an FPA
          by default, because programs that establish signal handlers
          for floating point traps inherently cannot work with the FPA.

    `sun3-nfp'
          Sun 3 running system version 2 or 3, without 68881.

    `sun4'
          Sun 4 running system version 2 or 3.  *Note
          Incompatibilities::, for calling convention
          incompatibilities on the Sun 4 (sparc).

    `sun2-os4'
          Sun 2 running system version 4.

    `sun3-os4'
          Sun 3 running system version 4, with 68881.

    `sun3-nfp-os4'
          Sun 3 running system version 4, without 68881.

    `sun4-os4'
          Sun 4 running system version 4.  *Note Incompatibilities::,
          for calling convention incompatibilities on the Sun 4
          (sparc).

    `sun386'
          Sun 386 (``roadrunner'').

    `alliant'
          Alliant FX/8 computer.  Note that the standard installed C
          compiler in Concentrix 5.0 has a bug which prevent it from
          compiling GNU CC correctly.  You can patch the compiler bug
          as follows:

               cp /bin/pcc ./pcc
               adb -w ./pcc - << EOF
               15f6?w 6610
               EOF

          Then you must use the `-ip12' option when compiling GNU CC
          with the patched compiler, as shown here:

               make CC="./pcc -ip12" CFLAGS=-w

          Note also that Alliant's version of DBX does not manage to
          work with the output from GNU CC.

    `tahoe'
          The tahoe computer (running BSD, and using DBX).

    `decstation'
          The DEC 3100 Mips machine (``pmax'').  Note that GNU CC
          cannot generate debugging information in the unusual format
          used on the Mips.

    `mips-sysv'
          The Mips computer, RS series, with the System V environment
          as default.  Note that GNU CC cannot generate debugging
          information in the unusual format used on the Mips.

    `mips-bsd43'
          The Mips computer, RS series, with the BSD 4.3 environment
          as default.  Note that GNU CC cannot generate debugging
          information in the unusual format used on the Mips.

    `mips'
          The Mips computer, M series.  Note that GNU CC cannot
          generate debugging information in the unusual format used
          on the Mips.

    `iris'
          The Mips computer, as delivered by Iris.  Note that GNU CC
          cannot generate debugging information in the unusual format
          used on the Mips.

    `convex-c1'
          Convex C1 computer.

    `convex-c2'
          Convex C2 computer.

    `pyramid'
          Pyramid computer.

    `hp-parisc'
	  HP Precision architecture.  (User-contributed)

    `hp9k320'
          HP 9000 series 300 using HPUX assembler.  Note there is no
          support in GNU CC for HP's debugger; thus, `-g' is not
          available in this configuration.

    `hp9k320-gas'
          HP 9000 series 300 using GNU assembler, linker and debugger.
          This requires the HP-adapt package, which is available
          along with the GNU linker as part of the ``binutils''
          distribution.  This is on the GNU CC distribution tape.

    `hp9k320-old'
          HP 9000 series 300 using HPUX assembler, in operating
          system versions older than 6.5.  Note there is no support
          in GNU CC for HP's debugger; thus, `-g' is not available in
          this configuration.

    `hp9k320-bsd'
          HP 9000 series 300 running BSD.

    `isi68'
          ISI 68000 or 68020 system with a 68881.

    `isi68-nfp'
          ISI 68000 or 68020 system without a 68881.

    `news800'
          Sony NEWS 68020 system.

    `next'
          NeXT system.

    `altos'
          Altos 3068.  Note that you must use the GNU assembler,
          linker and debugger, with COFF-encapsulation.  Also, you
          must fix a kernel bug.  Details in the file `ALTOS-README'.

    `3b1'
          AT&T 3b1, a.k.a. 7300 PC.  Note that special procedures are
          needed to compile GNU CC with this machine's standard C
          compiler, due to bugs in that compiler.  *Note 3b1
          Install::.  You can bootstrap it more easily with previous
          versions of GNU CC if you have them.

    `3b1-gas'
          AT&T 3b1 using the GNU assembler.

    `sequent-ns32k'
          Sequent containing ns32000 processors.

    `encore'
          Encore ns32000 system.

    `genix'
          National Semiconductor ns32000 system.