Bug#204780:

[Dan Jacobson <jidanni@jidanni.org>]

M> Perhaps you had an older version of libgphoto2-2 installed which did not
M> have this dependency.
$ apt-cache policy libgphoto2-2
  Installed: 2.1.1-9
  Candidate: 2.1.2-2
$ apt-cache -a show libgphoto2-2 |sort|uniq -u|grep ^Depends:
Depends: libc6 (>= 2.3.1-1), libexif8, libgphoto2-port0 (>= 2.1.1-9)
Depends: libc6 (>= 2.3.2-1), libexif9, libgphoto2-port0 (>= 2.1.2-2)
$ apt-cache -a show libgphoto2-port0|sort|uniq -u
Depends: libc6 (>= 2.3.1-1), libusb-0.1-4 (>= 1:0.1.6a)
Depends: libc6 (>= 2.3.2-1), libusb-0.1-4 (>= 1:0.1.7)

I'd be happy to run any probe scripts you send.