[winswitch] build error

[Michael Durkin]

was trying to build on Ubuntu 14.04 used apt-get build-dep to pull
dependencies


building 'xpra.x11.gtk2.gdk_display_source' extension
creating build/temp.linux-x86_64-2.7/xpra/x11/gtk2
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2
-Wall -Wstrict-prototypes -fPIC -I/usr/include/glib-2.0
-I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/gtk-2.0
-I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0
-I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pango-1.0
-I/usr/include/gio-unix-2.0/ -I/usr/include/freetype2
-I/usr/include/pixman-1 -I/usr/include/libpng12 -I/usr/include/harfbuzz
-I/usr/include/pygtk-2.0 -I/usr/include/python2.7 -c
xpra/x11/gtk2/gdk_display_source.c -o
build/temp.linux-x86_64-2.7/xpra/x11/gtk2/gdk_display_source.o -Wall
-Werror -fPIC
In file included from /usr/include/gtk-2.0/gtk/gtk.h:234:0,
                 from /usr/include/pygtk-2.0/pygtk/pygtk.h:8,
                 from xpra/x11/gtk2/gdk_display_source.c:354:
/usr/include/gtk-2.0/gtk/gtkitemfactory.h:47:1: error: function declaration
isn’t a prototype [-Werror=strict-prototypes]
 typedef void (*GtkItemFactoryCallback)  ();
 ^
cc1: all warnings being treated as errors
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
mike at SDR-client:~/Downloads/xpra-0.17.2$