Воопрос по Apache в Gentoo

Почему apache-tools не собирается при установленном Apache?

[ebuild N ] app-admin/apache-tools-2.2.9 USE="ssl"
[blocks B ] <www-servers/apache-2.2.4 (is blocking app-admin/apache-tools-2.2.9)

!!! Error: The above package list contains packages which cannot be installed
!!! at the same time on the same system.


В apache-tools.ebuild:

RDEPEND="=dev-libs/apr-1*
=dev-libs/apr-util-1*
dev-libs/libpcre
ssl? ( dev-libs/openssl )
!<www-servers/apache-2.2.4"