On Sun, Mar 30, 2014 at 4:04 PM, Alan W. Irwin <ir...@beluga.phys.uvic.ca> wrote: > > Hi Hez: > > For my normal debian stable platform (i.e., with GTK+2 rather than the > GTK+3 used for the epa_build case) our build system currently builds > the example > > examples/ocaml/xgtk_interfaceocaml > > without build issues. Also there appear to be no run-time loading > issues (as checked with "ldd -r). > > But when I tried to run that example from examples/ocaml I get the > following error messages: > > software@raven> ./xgtk_interfaceocaml > > (process:22561): GLib-GObject-WARNING **: invalid (NULL) pointer > instance > > (process:22561): GLib-GObject-CRITICAL **: g_signal_connect_data: > assertion G_TYPE_CHECK_INSTANCE (instance)' failed > > (process:22561): Gtk-WARNING **: Screen for GtkWindow not set; you > must always set > a screen for a GtkWindow before using the window > > (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: > assertion GDK_IS_SCREEN (screen)' failed > > (process:22561): Gdk-CRITICAL **: IA__gdk_colormap_get_visual: > assertion GDK_IS_COLORMAP (colormap)' failed > > (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: > assertion GDK_IS_SCREEN (screen)' failed > > (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: > assertion GDK_IS_SCREEN (screen)' failed > > (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: > assertion GDK_IS_SCREEN (screen)' failed > > (process:22561): Gdk-CRITICAL **: IA__gdk_window_new: assertion > GDK_IS_WINDOW (parent)' failed > Segmentation fault > > This example was committed 4.5 years ago (with no changes since) with the > message: > ------------------------------------------------------------------------ > r10500 | hezekiahcarty | 2009-09-30 12:39:01 -0700 (Wed, 30 Sep 2009) | 5 > lines > > Add CMake logic to build Plcairo examples; Add first Plcairo example > > This example illustrates a simple use of PLplot + OCaml + Cairo + Gtk to > display plot output in a GUI window. > ------------------------------------------------------------------------ > > It is obviously less than ideal if something we build cannot be run. I > suspect this example used to run OK 4.5 years ago, but it needs some > maintenance now to make it work properly with all the GTK+2 changes > made since. If you confirm the above run-time issue, would you be > willing to do that needed maintenance? >
Alan, Some defaults have changed in OCaml Gtk bindings since then. I will update PLplot to reflect this. It should be a relatively small change. Thank you for bringing this to my attention, Hez ------------------------------------------------------------------------------ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
