The output of dpkg-archicture on Debian's hurd-i386 port:

DEB_BUILD_ARCH=hurd-i386

DEB_BUILD_ARCH_OS=hurd

DEB_BUILD_ARCH_CPU=i386

DEB_BUILD_GNU_CPU=i486

DEB_BUILD_GNU_SYSTEM=gnu

DEB_BUILD_GNU_TYPE=i486-gnu

DEB_HOST_ARCH=hurd-i386

DEB_HOST_ARCH_OS=hurd

DEB_HOST_ARCH_CPU=i386

DEB_HOST_GNU_CPU=i486

DEB_HOST_GNU_SYSTEM=gnu

DEB_HOST_GNU_TYPE=i486-gnu

-- ?MichaelBanck - 14 Jan 2006