Re: [gentoo-dev] FYI: libpng16 won't be able to show some broken icons libpng15 was still able to

[Tobias Klausmann]

Hi! 

Since we probably will have to fix the files coming out of
tarballs until the various upstreams have fixed them, I propose
running a PNG fixer during or after the install phase. Since
having pngcrush as dep for everything is not exactly lightweight,
I hacked together a PNG file fixer in pure(ish, see below)
Python:

http://git.schwarzvogel.de/?p=pngfixer;a=summary

Feel free to send patches

Note that all I wrote is the mind-numbingly simple pngfixer.py
script. The rest of the Python code is excised from PIL
(http://www.pythonware.com/products/pil/index.htm). I didn't have
to change anything there.

Also note that it is not _strictly_ pure Python I'm using: the
PIL components use Python's zlib.so and therefore are subject to
bugs in _that_ code.

Still needed:

- How do we ship this?
- How do we run it for every ebuild? (probably something like
  find /var/tmp/portage/.../image/ -iname \*.png -exec {...}\;)

Regards,
Tobias