I just got the following: ebuilds that could satisfy ">=dev-libs/libxml2-2.7.2-r2" have been masked
According to the following post, the easiest way to get this operational is to accept the keywords and install anyway:
ACCEPT_KEYWORDS="~amd64" emerge =dev-libs/libxml2-2.7.2-r2
At the time of writing this post, PHP had been modified to work with the latest libxml and added to the portage tree. So, it was a l simpler for me to simply install anyway...
Right after doing this you get a conflict relating to PHP requiring two versions of libxml.
Try simply installing PHP separately:
emerge -p =dev-lang/php-5.2.8-r2 Lets see what happens.... emerge 3 of 7, damn that MySQL will have to wait a few mins. Well, it took a while but this process works!