GTK2 to GTK3 gtk_window_set_geometry_hints issue?

[The Devils Jester <thedevilsjester gmail com>]

When I originally designed my GTK2 based app, I had difficulty getting the
window to allow for resizing (smaller) by dragging on the edges/border of
the window.  It could always get bigger, but smaller was an issue.  I
managed to solve the issue by providing it with a minimal size hint like:

gtk_window_set_geometry_hints(GTK_WINDOW(window), window, &hints,
GDK_HINT_MIN_SIZE);

It was not an ideal solution, but it worked, however when I compile against
GTK3, the solution no longer works and instead I get:

"Gtk-WARNING **: Toplevel size doesn't seem to directly depend on the size
of the geometry widget from gtk_window_set_geometry_hints(). The geometry
widget might not be in the window, or it might not be packed into the
window appropriately"

Is there some new way of doing this?  Or, ideally, a way to turn off the
windows minimum size management and let me manage it?

To clarify, for this project, I am not using any of GTK's automatic layout
or sizing utilities.  I have widgets that I manually size and position
inside of a GtkFixed.