emulate zsh *except* pushd related options

[Dominik Vogt <vogt@xxxxxxxxxxxxxxxxxx>]

There's a system-wide, autoloaded script that defines a "cd"
function that needs shwordsplit to be set.  Other than that it
should revert to the default options (because it may be used by
someone else), *except* that it should not touch the pushd related
options (autopushd, pushdminus, pushdignoredups) that are needed
for cd to do its work.  Is there a (safe!) way to say "emulate zsh
but don't touch certain options"?

Ciao

Dominik ^_^  ^_^

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Dominik Vogt
IBM Germany