你如何强迫PEAR自动下载alpha / beta依赖?

When installing a package from PEAR, if the package is in alpha or beta mode, you can add a suffix to the package name to install the appropriate version; for example, running

sudo pear install openid

fails, but

sudo pear install openid-alpha

works.

But how about dependencies? In the example above, the OpenID in PEAR depends on 4 other packages that are also in alpha/beta.

Is there a way to make PEAR load the alpha/beta dependencies without manually installing each one?

pear config-set preferred_state alpha