Re: [gentoo-user] Re: libpng12 is missing

[Paul Hartman <paul.hartman+gentoo@gmail.com>]

On Mon, May 10, 2010 at 5:27 PM, Volker Armin Hemmann
<volkerarmin@googlemail.com> wrote:
> On Sonntag 09 Mai 2010, Rudmer van Dijk wrote:
>> On Sunday 09 May 2010, Volker Armin Hemmann wrote:
>> > On Sonntag 09 Mai 2010, Rudmer van Dijk wrote:
>> > > On Sunday 09 May 2010, walt wrote:
>> > > > This looks to me like a major portage screwup.  I see that on my
>> > > > ~amd64 machine I have both versions of libpng, but the 1.2.43-r1
>> > > > doesn't install a pkg-config file because 1.4.2 installs one with
>> > > > the same name, and just as bad, version 1.2.43-r1 removed the
>> > > > libpng12 header files.
>> > > >
>> > > > For now, I'd suggest just going back to to 1.2.43 if you can -- maybe
>> > > > mask
>> > > >
>> > > >  >1.2.43 in package.mask?
>> > > >
>> > > > Meanwhile I'm trying to fix firefox so I can read the bug report
>> > > > mentioned by Andras.
>> > >
>> > > well I'm getting into a .la hell...
>> > > you need to rebuild packages which are themselves not invalid and
>> > > therefore can't be found by revdep-rebuild...
>> > >
>> > > searching with "grep png12 `find /usr/lib64/ -name '*.la'`" lists all
>> > > .la files with a bad png version, rebuilding those will fix the
>> > > system. after that all packages found by revdep-rebuild can be
>> > > emerged.
>> > >
>> > >   Rudmer
>> >
>> > run la fixer
>>
>> ah, yes I knew there was something easier 8-)
>> well running `lafilefixer --justfixit` did not find anything so I got them
>> all
>>
>> thanks!
>>
>>       Rudmer
>
> sadly, it does not get them all.
> The only save way:
> grep -R for png12 and remerge all packages whose files pop up.
>
> For example revdep-rebuilt failed to rebuild pygtk - because of glade. But it
> never tried to rebuild glade...

In my box (~amd64, unmasked portage) emerge automagically slotted 1.2
and emerged 1.4 in slot 0. And everything seems to work and be happy.
revdep-rebuild finds nothing wrong. So maybe the easy fix is to
"emerge libpng:1.2"?