gtk frontend does not compile

[Georg Baum]

I get the following error:

../../../../src/frontends/gtk/GBranch.C: In member function `virtual void
   lyx::frontend::GBranch::update()':
../../../../src/frontends/gtk/GBranch.C:77: error: `clear_items' 
undeclared
   (first use this function)
../../../../src/frontends/gtk/GBranch.C:77: error: (Each undeclared 
identifier
   is reported only once for each function it appears in.)

This is with
  GTK Frontend:
    libgtkmm version:           2.6.5
    libglademm version:         2.4.1

Commenting out that line works.

John, please have a look.


Georg