When running the installer scripts, among other messages, the following two appear: ---BEGIN FIRST MESSAGE--- Checking PHP extensions The following modules/extensions are required to run Roundcube: PCRE: OK DOM: OK Session: OK XML: OK JSON: NOT OK(See http://www.php.net/manual/en/book.json.php) ---END FIRST MESSAGE--- ---BEGIN SECOND MESSAGE--- Sorry but your webserver does not meet the requirements for Roundcube! Please install the missing modules or fix the php.ini settings according to the above check results. Hint: only checks showing NOT OK need to be fixed. ---END SECOND MESSAGE--- I conclude that the roundcube ebuild should depend on php[json].
Fixed in CVS. Thanks.