rose portage # ls
package.keywords  package.unmask
rose portage # cat package.unmask 
=net-fs/curlftpfs-0.9
rose portage # cat package.keywords 
rose portage # emerge net-fs/curlftpfs
Calculating dependencies /
!!! All ebuilds that could satisfy ">=net-misc/curl-7.16.1" have been masked.
!!! One of the following masked packages is required to complete your request:
- net-misc/curl-7.16.1 (masked by: package.mask)
# Daniel Black <dragonheart@gentoo.org> (09 Dec 2006)
# needs more compatibilty testing - bug #157718 for incompatibilites


For more information, see MASKED PACKAGES section in the emerge man page or 
refer to the Gentoo Handbook.
(dependency required by "net-fs/curlftpfs-0.9" [ebuild])