Enable Xapian search engine support

Packages describing “xapian” as local USE flag

Package “xapian” Flag Description
net-mail/cyrus-imapd Enable Xapian search engine support
www-apps/roundup Enable Xapian full-text indexer
net-p2p/retroshare Enables GXS content indexing and search via dev-libs/xapian

All packages providing a “xapian” USE flag (2)