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[Chris Samuel <chris@xxxxxxxxxxx>]

Excellent work Joshua, the only change I had to make to your patch (in
order to add it automatically to the build in the debian/patches
directory) was to change the references from src/$file to a/src/$file
for lines removed and b/src/$file for lines added.  Look at
exiv2-0.19/debian/patches/00_hyphens_used_as_minus.diff as an example.
I also named it 01_nikon_exif.diff and added it to the series file in
debian/patches to automate its application.

After rebuilding (and installing) the exiv2 packages and then rebuilding
kdegraphics and installing the new libkexiv2-*.deb packages I was able
to fire up digikam, shot some random images of my office and downloaded
the images from the SD card of my D90 - much much faster!

Final proof that this patch works is redoing my previous tests with the
exiv2 command on the same test image:

chris@quad:/tmp$ time exiv2 -M'set Exif.Image.Make NoName' DSC_0147.JPG

real    0m0.027s
user    0m0.000s
sys     0m0.020s

chris@quad:/tmp$ time exiv2 -M'set Exif.Image.Make NIKON CORPORATION'
DSC_0147.JPG

real    0m0.016s
user    0m0.000s
sys     0m0.010s

chris@quad:/tmp$ time exiv2 -M'set Exif.Image.Make NoName' DSC_0147.JPG

real    0m0.027s
user    0m0.010s
sys     0m0.010s

I make that between 155x and 229x faster than the unpatched version!

** Patch added: "Joshua's with minor change to make it suitable for debian/patches directory"
   https://bugs.launchpad.net/ubuntu/+source/exiv2/+bug/596327/+attachment/1702949/+files/01_nikon_exif.diff

-- 
Digikam imports images taken with Nikon Cameras extremely slow, takes a large amount of time processing exif data
https://bugs.launchpad.net/bugs/596327
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