Bug#380072: [Pkg-lyx-devel] Bug#380072: lyx-common: upgrade fails due to postinst call to gtk-update-icon-cache failing

[Per Olofsson]

Sven Hoexter:
> This seems to be the right way, Per what do you think?

I made an upload now where I check if index.theme exists before
running gtk-update-icon-cache. I don't know what the correct thing is,
really.

-- 
Pelle