graphics/png! Oh why?

[Jakub Lach]

$  libreoffice &

Shared object "libpng.so.6" not found, required by "oosplash"

[1] + Done (1)             libreoffice 

Hmmm...

$ libreoffice &

libpng warning: Application built with libpng-1.4.11 but running with 1.5.10

[1] + Segmentation fault   libreoffice  (core dumped)

Why they are breaking png after each release??

Right now, I cannot build vigra at all, and with
binary vigra package cannot build libreoffice 
as well..

Not good, maybe someone will reconsider upgrading png on
their system.