Re: [gentoo-user] fail to install new package

[Rich Freeman <rich0@gentoo.org>]

On Tue, Oct 6, 2015 at 8:01 AM, Neil Bothwick <neil@digimed.co.uk> wrote:
> On Tue, 6 Oct 2015 13:31:54 +0300, Ran Shalit wrote:
>
>> >=virtual/libudev-215-r1 abi_x86_32
>> Would you like to add these changes to your config files? [Yes/No] Y
>> Autounmask changes successfully written.
>> * IMPORTANT: 8 config files in '/etc/portage' need updating.
>
> This is the important line
>
>> * See the CONFIGURATION FILES section of the emerge
>> * man page to learn how to update config files.
>> !!! All ebuilds that could satisfy
>> ">=sys-libs/zlib-1.2.8-r1:=[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_ppc_32(-)?,abi_ppc_64(-)?,abi_s390_32(-)?,abi_s390_64(-)?]"
>> have been masked.
>> !!! One of the following masked packages is required to complete your
>> request:
>> - sys-libs/zlib-1.2.8-r1::gentoo (masked by: )
>> (dependency required by "media-libs/lcms-2.6-r1::gentoo" [ebuild])
>> (dependency required by
>> "app-emulation/wine-9999::gentoo[abi_x86_32,lcms]" [ebuild])
>> (dependency required by "wine" [argument])
>> For more information, see the MASKED PACKAGES section in the emerge
>> man page or refer to the Gentoo Handbook.
>> gentoo ~ #
>
> You need to run etc-update, or your preferred alternative config manager,
> to merge the changes into /etc/portage/package.use. Portage only puts
> them in a temporary ._cfg00* files, it doesn't apply them directly, you
> are expected to manage that.
>

Correct.  In addition to accepting the auto-unmask which will set the
32-bit abi use flag on zlib, you should undo the changes you
inadvertently made:
Edit  /etc/portage/package.keywords to remove the zlib line you added
Edit /var/lib/portage/world to remove zlib (which was added when you
ran emerge zlib without a -1 option).  If you don't do this you might
run into trouble in a few years if somebody comes out with libREz and
it gets virtualized.  In general you always want to run emerge -1 when
you're just rebuilding things to try to troubleshoot.

-- 
Rich