- Update patches.
    - Add patch to compile against external libedit rather than using the
        in-tree version.
    - Add -Werror-implicit-function-declaration to optflags.
    - Get rid of hashtest and hashtest2 binaries that link to unfortified
        versions of *printf functions. They are compiled with -O0 which somehow
        pulls in the wrong versions. These programs aren't necessary to the
        operation of the package anyway.