Comment 12 for bug 611011

Fixed in gtk+3.0 package as well:

gtk+3.0 (2.91.3-0ubuntu1) natty; urgency=low

  [ Michael Terry ]
  * debian/libgtk3.0-0.symbols:
    - Fix some symbols that had debian versioning cruft
  * debian/rules:
    - Set introspection=no for non-shared build
  * debian/libgtk3.0-doc.doc-base.gtk-faq:
    - Dropped, as faq docs are no longer shipped
  * debian/libgtk3.0-doc.doc-base.gtk.in:
    - Rename to just .gtk and specify DOC_PKG manually. Many other files
      hardcode it anyway and it was confusing the build system.
  * debian/libgtk3.0-doc.links.in:
    - Drop non-existant faq doc symlink
  * debian/libgail3.0-doc.links:
    - Update directories to match where the source installs docs
  * debian/libgail3.0-doc.doc-base.gail-reference:
    - Fix document name to not conflict with 2.0 version
    - Update directories to match where the source installs docs

  [ Bilal Akhtar ]
  * debian/patches/092_default_to_xdg_document_dir.patch:
    - Use $XDG_DOCUMENTS_DIR as default directory rather than the home
      directory for the 'Print to File' function. (LP: #611011)

https://launchpad.net/ubuntu/+source/gtk+3.0/2.91.3-0ubuntu1