[sane-devel] [OKFILTER] Re: dll.conf question
okg at johnfreed.com
Tue Dec 28 12:16:16 UTC 2010
dll.d is a much sounder approach; seems to have been new with 1.0.20 in
According to the Debian/Ubuntu bug 512596, this was "fixed" in HPLIP
2.8.12-2, though the fix was to check (only) the file sane.d/dll.d/hplip
(clearly it should check ALL files in that directory).
I'll do some more investigating on the HPLIP end and let them know. Thanks.
On Tue, Dec 28, 2010 at 1:08 AM, m. allan noah <kitno455 at gmail.com> wrote:
> hplip should not modify dll.conf. take a look at the handling for
> On Mon, Dec 27, 2010 at 6:33 PM, John Freed <okg at johnfreed.com> wrote:
> > I've been working on a port of the HPLIP software to Mac OS X, using
> > MacPorts. (The SANE project says it doesn't include HPAIO because it's
> > supported by HPLIP, but HPLIP explicitly does not support the Mac.)
> > In the process, I discovered that HPLIP (which provides the hpaio
> > appends a line "hpaio" to dll.conf to activate it.
> > This line is then overwritten the next time sane-backends is upgraded.
> > I then realized that this is the case with ALL upgrades of sane-backends
> > is thus a general problem. It dawned on me that perhaps a better approach
> > might be something along these lines:
> > 1) check to see if dll.conf exists in the install directory. If it
> > install dll.conf.in
> > 2) if it already exists, either leave it alone, or (better) do something
> > like this:
> > -- create a version of dll.conf (call it dll.conf.null) with ALL backends
> > commented out
> > -- grep -v ^# dll.conf >> dll.conf.null
> > -- install the modified dll.conf.null in place of dll.conf
> > This will give an updated list of all the backends, but only activate the
> > ones that were previously active (and not delete items like hpaio that
> > active but not part of the official sane-backends package).
> > --
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> "The truth is an offense, but not a sin"
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