For i386, update glibc and for the Alpha, mark forbidden due to
remotely exploitable RPC bug (Red Hat advisory RHSA-2003-089 and
CERT advisory CA-2003-10).
According to <URL:http://www.redhat.com/apps/support/errata/>, "all
errata support for Alpha products, Sparc products, and Powertools
products have reached end of life."
I didn't do proper run-time testing of this, but "make package
deinstall" leaves a clean /compat/linux/ behind.