Packages with multiple output in config.scm.

[Dmitry Nikolaev]

What should I do if I want to install some particular output of a package
system wide? For example, I can install icedtea:jdk in users profile

guix package -i icedtea:jdk

But code like below in config.scm returns error:

(packages (cons*
           evince
           icedtea:jdk
           git))

Dmitry