[sane-devel] PNG support for "scanimage"?

Olaf Meeuwissen paddy-hack at member.fsf.org
Sat Jun 1 02:37:01 BST 2019

Hi Rainer, Rolf,

Dr Rainer Woitok writes:

> Greetings,
> still using Ubuntu 16.04 I've installed "scanimage" from Rolf's PPA:
> $ scanimage --version
> scanimage (sane-backends) 1.0.27git; backend version 1.0.27
> $ scanimage -d pixma:MX880_new-host --format png
> PNG support not compiled in
> $
> What's the reason for not supporting PNG?  Do I have to clone the source
> repository to get PNG support?

Looks like the build dependencies are missing libpng-dev but I have no
idea why.  They do have a libjpeg-dev dependency and JPEG and PNG
support were both added in 1.0.25.

Rolf> Can you fix this?

Hope this helps,
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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