[sane-devel] --compression backend support

[joakim at verona.se]

I have been using the --compression backend support in the fujitsu
backend a lot and I am happy with it.

I use Fedora srpm:s and I have to patch the build so that sane.h enables
compression support.

With sane 1.0.21 this broke, the compression support no longer compiles
if you enable it, so I have to downgrade to 1.0.20 which is a bit
inconvenient.

The compression support is really really useful for me and I do hope it
doesnt get orphaned.
-- 
Joakim Verona