[gentoo-user] Trouble using package.provided

[allan gottlieb]

I have never needed package.provided before so am probably doing it
wrong.

There are know bugs I am encountering with
www-client/chromium-64.0.3282.140 and
net-libs/webkit-gtk-2.4.11-r200

Since each takes a while to build before failing, I would like to stop
trying until there is progress on the bugs

man 5 portage made me believe that package.provide was the answer.

    E6430 ~ # cat /etc/portage/package.provided/chromium
    # The current version won't build (known problem)
    =www-client/chromium-64.0.3282.140
    E6430 ~ # 

    E6430 ~ # cat /etc/portage/package.provided/webkit-gtk
    # the -r200 won't build (known bug)
    # "soon" won't need it since will have new gnucash
    =net-libs/webkit-gtk-2.4.11-r200
    E6430 ~ # 

However

    E6430 ~ # emerge --update --changed-use --with-bdeps=y @world

begins with

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild  rR    ] net-libs/webkit-gtk-2.4.11-r200 
[ebuild     U  ] www-client/chromium-64.0.3282.140 [63.0.3239.108] USE="-jumbo-build%" 

Any help would be appreciated.

thanks,
allan