I get this error during build:

In file included from gtkfilechooserutils.h:25,
                 from gtkfilechooserentry.c:36:
gtkfilechooserprivate.h:24:31: error: gtk/gtkfilesystem.h: No such file or directory
In file included from gtkfilechooserutils.h:25,
                 from gtkfilechooserentry.c:36:

Reason:

Overview of Changes from GTK+ 2.13.5 to 2.13.6
...
* GtkFileChooser has a GFile-oriented API now, functions
  for creating filechoosers with specific backends have been
  deprecated, since GIO is used directly.
...