Re: [gentoo-user] world update problem again

[Wol]

On 30/11/2021 14:18, Rich Freeman wrote:
> On Tue, Nov 30, 2021 at 8:27 AM Arve Barsnes<arve.barsnes@×××××.com>  wrote:
>> On Tue, 30 Nov 2021 at 14:20, John Covici<covici@××××××××××.com>  wrote:
>>> Hi.  So, on my latest attempt at a world update today, I am getting a
>>> crazy problem with libpng, with some packages insisting on the use
>>> flag -apng (portage made me put it in), but other packages insisting
>>> on the use flag apng.
>>>
>>> Thanks in advance for any suggestions.
>> That is a direct conflict between chromium and firefox/thunderbird.
>> You can avoid it by removing the system-png flag from chromium.
> That issue will probably never hit stable, and I would make a note to
> revisit it in a few weeks.  The next Council agenda includes resolving
> the conflict, though that isn't a guarantee it will happen.  Once the
> change is settled you'll probably want to revert all your USE flag
> changes to the new defaults unless you have a strong personal
> preference.

I know we're encouraged to use a directory for package.use nowadays, and 
this is a perfect example why.

Create a file called "chromium" or "firefox" (whicever makes most sense 
to you), and put all the assorted flags you need to fix the issue in there.

So when you decide you want to revert all those changes, you can just 
delete that file, and bingo ...

Or just make all those changes dependent on the current version of 
chromium/firefox. So when you update you may have to re-visit the 
problem, or it may just solve itself.

Cheers,
Wol