alpha-dec-osf=alpha
alpha-unknown-linux-gnu=linuxalpha
hppa1.1-stratus-sysv4=svr4
i386-pc-bsdi2.0=bsdi-2.0
i386-pc-bsdi2.1=bsdi-2.1
i386-pc-bsdi3.0=bsdi-3.0
i386-pc-linux-gnu=linux-elf
i386-unknown-freebsd=freebsd
i386-unknown-netbsd=netbsd
i486-pc-linux-gnu=linux-elf
i586-pc-linux-gnu=linux-elf
i586-pc-sco3.2v=sco
i686-pc-linux-gnu=linux-elf
mips-sgi-irix=irix
powerpc-ibm-aix3.2.5=aix_325
powerpc-ibm-aix4.1.4.0=aix_41
powerpc-ibm-aix4.1.5.0=aix_41
sparc-sun-solaris=sparc_solaris-gcc
sparc-unknown-linux-gnu=linux-elf