Apply the 2008-03-05 change from Dominique Quatravaux in init_image_instance_from_gdk_pixmap as well even though the code is not enabled at the moment

#!/bin/sh
if
test -r $2
then
if
cmp $1 $2 > /dev/null
then
echo $2 is unchanged
rm -f $1
else
mv -f $1 $2
fi
else
mv -f $1 $2
fi