Re: [gentoo-dev] Opera 6.0 final.

[Arcady Genkin <agenkin@thpoon.com>]

Avi Schwartz <avi@CFFtechnologies.com> writes:

> I figured the problem out and I posted a message about a solution in
> gentoo-user.  The problem I had was not with Opera but rather with QT2. 
> Here is the message which was titled "QT dependencies problem":
>
> While investigating the reason for problems I had with Opera 6.0 final,
> I found what my problem was and it had to do with multiple libpng
> versions.
>
> Apparently, on my system, qt-2.3.2-r1 was built when only libpng-1.2.1
> was installed thus requiring libpng.so.3.
>
> Opera was built using libqt 2.x and libpng.so.2 which corresponds with
> libpng-1.0.12.
>
> Because of the different versions of libpng used by Opera and one of its
> dynamically loaded libraries (QT) it would seg fault.
>
> Since Opera is available only as a binary, to fix it, I unmerged
> libpng-1.2.1-r1, reemerged qt-2.3.2-r1 so it used the 1.0.12 version of
> libpng, and then reemerged libpng to bring version 1.2.1 back to life.
>
> Now the question:  should the dependency of qt-2 be changed so it
> requires libpng-1.0.12 rather then the generic dependency on
> media-libs/libpng and the ebuild modified to use the proper libpng
> version?

Aahhh, what a mess!..  I don't know what to do in this situation.  It
seems that specifying libpng-1.0.12 as a dependency for qt2 would
solve the problem for opera, but it may break things for something
else, so I don't like that solution.

I suggest that we leave the things the way they are, and wait it out.
This is, obviously, a problem of transition from one version of
libpng to the other, which spans outside of gentoo project.  I think
that we should leave 6.0 masked; if somebody wants 6.0 final, they can
use the static package.

Thanks for figuring this out!
-- 
Arcady Genkin
Thanks God I'm still an atheist! -- Luis Bunuel