Hello! Did a quick build test and needed to do the attached changes to get the build to not fail... HTH.
-- Andreas Henriksson
diff -uriNp -x .libs -x gtk-vnc-plugin.la -x npshell.c -x npunix.c -x '*.lo' -x '*.so' -x Makefile gtk-vnc-0.4.3/plugin/gtk-vnc-plugin.c gtk-vnc-0.4.3-gtk3/plugin/gtk-vnc-plugin.c --- gtk-vnc-0.4.3/plugin/gtk-vnc-plugin.c 2011-02-18 17:29:10.000000000 +0100 +++ gtk-vnc-0.4.3-gtk3/plugin/gtk-vnc-plugin.c 2011-04-13 18:24:51.000000000 +0200 @@ -196,11 +196,11 @@ GtkVNCXSetWindow (NPP instance, NPWindow This->height = window->height; /* Create a GtkPlug container and a Gtk-VNC widget inside it. */ - This->container = gtk_plug_new ((GdkNativeWindow)(long)window->window); + This->container = gtk_plug_new ((long)window->window); This->vnc = vnc_display_new (); /* Make sure the canvas is capable of receiving focus. */ - GTK_WIDGET_SET_FLAGS (GTK_WIDGET(This->vnc), GTK_CAN_FOCUS); + gtk_widget_set_can_focus (GTK_WIDGET(This->vnc), TRUE); /* All the events that our canvas wants to receive */ gtk_widget_add_events diff -uriNp -x .libs -x gtk-vnc-plugin.la -x npshell.c -x npunix.c -x '*.lo' -x '*.so' -x Makefile gtk-vnc-0.4.3/plugin/gtk-vnc-plugin.h gtk-vnc-0.4.3-gtk3/plugin/gtk-vnc-plugin.h --- gtk-vnc-0.4.3/plugin/gtk-vnc-plugin.h 2011-02-18 17:29:10.000000000 +0100 +++ gtk-vnc-0.4.3-gtk3/plugin/gtk-vnc-plugin.h 2011-04-13 18:11:08.000000000 +0200 @@ -38,6 +38,7 @@ #include <npapi.h> #include <gtk/gtk.h> +#include <gtk/gtkx.h> #include <X11/Xlib.h> #define PLUGIN_NAME "GTK-VNC plugin" diff -uriNp -x .libs -x gtk-vnc-plugin.la -x npshell.c -x npunix.c -x '*.lo' -x '*.so' -x Makefile gtk-vnc-0.4.3/plugin/Makefile.am gtk-vnc-0.4.3-gtk3/plugin/Makefile.am --- gtk-vnc-0.4.3/plugin/Makefile.am 2011-02-18 17:29:10.000000000 +0100 +++ gtk-vnc-0.4.3-gtk3/plugin/Makefile.am 2011-04-13 18:19:26.000000000 +0200 @@ -6,7 +6,7 @@ plugin_LTLIBRARIES = gtk-vnc-plugin.la gtk_vnc_plugin_la_SOURCES = \ gtk-vnc-plugin.c gtk-vnc-plugin.h npshell.c npunix.c gtk_vnc_plugin_la_LIBADD = \ - ../src/libgtk-vnc-1.0.la @GTK_LIBS@ \ + ../src/libgtk-vnc-$(GTK_VNC_API_VERSION).la @GTK_LIBS@ \ @FIREFOX_PLUGIN_LIBS@ gtk_vnc_plugin_la_LDFLAGS = \ -module -avoid-version diff -uriNp -x .libs -x gtk-vnc-plugin.la -x npshell.c -x npunix.c -x '*.lo' -x '*.so' -x Makefile gtk-vnc-0.4.3/plugin/Makefile.in gtk-vnc-0.4.3-gtk3/plugin/Makefile.in --- gtk-vnc-0.4.3/plugin/Makefile.in 2011-02-18 17:29:21.000000000 +0100 +++ gtk-vnc-0.4.3-gtk3/plugin/Makefile.in 2011-04-13 18:19:34.000000000 +0200 @@ -71,8 +71,7 @@ am__base_list = \ sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g' am__installdirs = "$(DESTDIR)$(plugindir)" LTLIBRARIES = $(plugin_LTLIBRARIES) -@ENABLE_PLUGIN_TRUE@gtk_vnc_plugin_la_DEPENDENCIES = \ -@ENABLE_PLUGIN_TRUE@ ../src/libgtk-vnc-1.0.la +@ENABLE_PLUGIN_TRUE@gtk_vnc_plugin_la_DEPENDENCIES = ../src/libgtk-vnc-$(GTK_VNC_API_VERSION).la am__gtk_vnc_plugin_la_SOURCES_DIST = gtk-vnc-plugin.c gtk-vnc-plugin.h \ npshell.c npunix.c @ENABLE_PLUGIN_TRUE@am_gtk_vnc_plugin_la_OBJECTS = \ @@ -320,7 +319,7 @@ top_srcdir = @top_srcdir@ @ENABLE_PLUGIN_TRUE@ gtk-vnc-plugin.c gtk-vnc-plugin.h npshell.c npunix.c @ENABLE_PLUGIN_TRUE@gtk_vnc_plugin_la_LIBADD = \ -@ENABLE_PLUGIN_TRUE@ ../src/libgtk-vnc-1.0.la @GTK_LIBS@ \ +@ENABLE_PLUGIN_TRUE@ ../src/libgtk-vnc-$(GTK_VNC_API_VERSION).la @GTK_LIBS@ \ @ENABLE_PLUGIN_TRUE@ @FIREFOX_PLUGIN_LIBS@ @ENABLE_PLUGIN_TRUE@gtk_vnc_plugin_la_LDFLAGS = \
