Re: [gentoo-user] Updating libpng: another libtool cockup?

[Allan Gottlieb <gottlieb@nyu.edu>]

On Sun, Sep 18 2011, walt wrote:

> I just did a routine update on my ~amd64 machine and saw the portage
> warning that libpng14 has been replaced by libpng15, and I should run
> revdep-rebuild --library '/usr/lib/libpng14.so' and then delete the
> obsolete library.
>
> After that I ran plain revdep-rebuild as I do after every update, and
> saw that two gnome packages failed to rebuild properly because lpng14
> couldn't be found :/
>
> From painful experience I've learned that good-old libtool files (*.la)
> are the usual suspects, and grep found -lpng14 in about ten .la files
> even after both revdep-rebuilds.  Grrr!
>
> This fixed the problem for me (as similar moves have done in the past):
>
> #find /usr/lib64 -name \*.la -exec sed -i s/png14/png15/ '{}' ';'

Thanks for the tip.  I wonder when a routing update world tells you to
run
   revdep-rebuild --library <some-lib>
should you run it before or after the normal
   revdep-rebuild
that we normally run after updates?

thanks,
allan