Jim
Finally I found some time & built libraw 0.12.3 from source, then built
Shotwell 0.8.1 from source & that dragged in the updated static libraw.
I confirm that this definitely fixes the magenta-stripe problem for my
CR2, EOS 550D, RAW files.
Thank you for your advice.
-- Bruce
On 14/01/11 09:05, Jim Nelson wrote:
Yes -- now I see what is going on. I noticed that the libraw libraries were
.a files, but I thought they contained .so and that this was some Linux-ism
to compress shared libraries. Now I see they're .o files, so in fact
Shotwell *is* statically linking them in.
<sigh>
This changes the game quite a bit. This means libraw is purely a build
dependency. Users can't merely upgrade libraw, but need to rebuild Shotwell
as well. I thought the bug fix was due to a header change, hence the need
to recompile. It's more fundamental than that.
I've posted a message with the libraw folks to get them start thinking about
this issue: http://www.libraw.org/node/544
-- Jim
On Wed, Jan 12, 2011 at 3:48 PM, Bruno Girin<[email protected]> wrote:
Jim,
Yes I tried merely dropping in 0.12 with an existing build of Shotwell
and running ldconfig to force ld to refresh its cache. It didn't work. I
believe that's because libraw is a static library rather than a dynamic
one: you'll notice that it installs libraw.a and libraw_r.a but no .so
file. Maybe there is a compilation flag to get it to install a .so but I
didn't investigate.
There is also a possibility that I didn't do the test properly so a
confirmation by someone else would be good :-)
If you want to try with a file that exhibits the behaviour, here's one
posted to the ubuntu-uk mailing list:
http://marsters.co.uk/shotwell/eos60d-samples.tar.gz
With libraw 0.9.1 it shows the purple stripe, with 0.12.2 it displays
the photograph properly.
Bruno
On Tue, 2011-01-11 at 12:55 -0800, Jim Nelson wrote:
Bruno,
Did you verify that you needed to recompile Shotwell with libraw 0.12
in order to fix the bug? Did you try merely dropping in 0.12 with an
existing build of Shotwell?
-- Jim
On Tue, Jan 11, 2011 at 12:30 PM, Bruno Girin<[email protected]>
wrote:
On Tue, 2011-01-11 at 09:23 -0800, Adam Dingle wrote:
> Bruce,
>
> To be clear, Shotwell itself does not include libraw: it
just uses
> whichever version of libraw happens to be available on your
machine. We
> do have plans to add libraw 0.12 to the Yorba PPA (see
> http://trac.yorba.org/ticket/2583), but that's not done
yet. We might
> do that soon, or wait for the 0.9 release - that's still
undecided. If
> you're in a hurry, though, it shouldn't be too hard to build
and install
> libraw 0.12.2 on your Maverick box, and then Shotwell will
use it.
If you want to do that, you will have to compile libraw 0.12.2
and then
re-compile Shotwell, as libraw is a static (rather than
dynamic)
library. Based on my tests, it does resolve the purple stripe
problem
seen on EOS 60D and 550D cameras (only tested with a 60D image
though).
Bruno
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