Supported CPUs:  (Put the GNU config.guess values here.)
     i386       i486-unknown-linux (gcc),
                i386-unknown-sysv4.0 (gcc, /usr/bin/cc, /usr/ucb/cc),
                i386-pc-solaris2.6 (gcc),
                i486-unknown-sco3.2v4.2 (gcc, cc -Of),
                i486-unknown-os2emx (gcc), i386-pc-cygwin32 (gcc),
                i386-pc-win32 (msvc4, msvc5)
     m68k       m68k-next-nextstep3 (cc), m68k-sun-sunos4.0 (cc),
                m68k-unknown-linux (gcc)
     mips       mips-sgi-irix4.0.5 (gcc, cc -ansi, cc -D__STDC__, cc -cckr),
                mips-sgi-irix5.2 (gcc, cc -ansi, cc -D__STDC__, cc -cckr),
                mips-sgi-irix5.3 (gcc, cc -ansi, cc -D__STDC__, cc -cckr),
                mips-sgi-irix6.2 (cc -32),
                mips-sgi-irix6.4 (cc -32, cc -n32, cc -64)
                BUG: mips-sgi-irix6.5 (cc -n32) is broken. gcc works.
     sparc      sparc-sun-sunos4.1.1 (gcc, cc), sparc-sun-solaris2.3 (gcc)
                sparc-sun-solaris2.4 (gcc, cc)
     alpha      alpha-dec-osf3.0 (gcc, cc), alpha-dec-osf4.0 (gcc, cc)
     hppa       hppa1.0-hp-hpux8.00 (gcc, cc), hppa1.1-hp-hpux9.05 (cc),
                hppa1.1-hp-hpux10.01 (cc), hppa2.0-hp-hpux10.20 (cc +DA1.1)
     arm        -- untested
     powerpc    rs6000-ibm-aix3.2.5 (gcc, c89, xlc),
                powerpc-ibm-aix4.1.4.0 (cc), powerpc-unknown-linux (gcc),
                powerpc-apple-darwin6.8 (gcc)
     powerpc64  powerpc64-unknown-linux (gcc -m64)
     m88k       -- untested
     convex     -- untested
     ia64       ia64-unknown-linux (gcc)
     x86_64     x86_64-suse-linux (gcc)
     s390       -- untested